WO2016180318A1 - Textile, ainsi que procédé de fabrication et article de protection de celui-ci - Google Patents

Textile, ainsi que procédé de fabrication et article de protection de celui-ci Download PDF

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Publication number
WO2016180318A1
WO2016180318A1 PCT/CN2016/081572 CN2016081572W WO2016180318A1 WO 2016180318 A1 WO2016180318 A1 WO 2016180318A1 CN 2016081572 W CN2016081572 W CN 2016081572W WO 2016180318 A1 WO2016180318 A1 WO 2016180318A1
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WIPO (PCT)
Prior art keywords
molecular weight
weight polyethylene
ultrahigh molecular
strip
fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/081572
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English (en)
Chinese (zh)
Inventor
姬长干
满长阵
阴瑞文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Zhongyuan Defense Material Co ltd
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Zhengzhou Zhongyuan Defense Material Co ltd
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Publication of WO2016180318A1 publication Critical patent/WO2016180318A1/fr
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Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/22—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of spaced pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics

Definitions

  • the present application relates to the technical field of polymer material application, and in particular to a fabric, a preparation method thereof and a protective article.
  • Ultra High Molecular Weight Polyethylene (UHMW-PE) is a linear structural thermoplastic engineering plastic with excellent comprehensive properties. It is one of the most important uses of high strength fiber based on this material. .
  • Ultra High Molecular Weight Polyethylene (UHMW-PE) fiber is a synthetic fiber with a high molecular parallel structure and orientation. This molecular structure determines the ultra-high molecular weight polyethylene fiber with extremely high strength and Modulus, and has good chemical stability, corrosion resistance and so on.
  • the above characteristics of ultra-high molecular weight polyethylene (UHMW-PE) fiber have surpassed the aramid fiber plain weave fabric, and are widely used in the field of military and police bulletproof protection, and become the mainstream material in the field to replace the traditional steel structure bulletproof material.
  • the fabric with ultra-high molecular weight polyethylene fiber as the strip can be generally prepared by the following process; the plurality of ultra-high molecular weight polyethylene fibers are uniformly, parallelized, straightened, etc., arranged in one direction, and the ligature is used as the warp. Or the weft is tied to form a single layer, and the melting temperature T1 of the ligature is lower than the melting point T2 of the ultrahigh molecular weight polyethylene fiber, and then the monolayer is heat-cured by a temperature T3 between T1 and T2.
  • a plurality of single layers are prepared in the same manner, and a plurality of single layers are provided to obtain a desired fabric.
  • each of the single layers needs to be separately subjected to hot press consolidation treatment in the formation process of the fabric, and the efficiency is low, and each hot pressing treatment is performed for each
  • the performance of the single layer of polymer can cause a certain degree of damage, thereby reducing the strength, ballistic resistance and the like of the fabric prepared by the plurality of single layers.
  • the embodiment of the present application provides a fabric, a preparation method thereof and a protective article.
  • an embodiment of the present application provides a method for preparing a fabric, including:
  • the N single layers are interspersed into a whole by a bundle of yarns.
  • the method further comprises: at least one piece The ultrahigh molecular weight polyethylene film or strip surface is coated with a binder; the coated adhesive is dried.
  • the adhesive is coated on the surface of at least one piece of the ultrahigh molecular weight polyethylene film or strip using a micro concave roll.
  • the binder comprises one or a mixture of the following: polystyrene isoprene copolymer, polystyrene triblock Copolymer, hydrogenated polystyrene triblock interpolymer, ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, waterborne polyurethane.
  • the binder content is 0.3% to 20%, wherein the binder content is: the coated adhesive and the coating A weight ratio of a single sheet of the ultrahigh molecular weight polyethylene film or strip coated with the binder.
  • the binder content is from 1% to 15%.
  • the binder content is from 3% to 12%.
  • the method further comprises: coating the adhesive
  • the ultrahigh molecular weight polyethylene film or strip of the mixture is subjected to surface modification treatment.
  • the surface modification treatment comprises: corona treating the upper surface and/or the lower surface of the ultrahigh molecular weight polyethylene film or strip to be coated with the adhesive.
  • the power of the corona treatment is from 0.1 Kw to 3 Kw.
  • the power of the corona treatment is from 0.3 Kw to 2 Kw.
  • the power of the corona treatment is from 0.5 Kw to 1 Kw.
  • 0.1 g/denier to 8 is applied to both ends of the ultrahigh molecular weight polyethylene film or strip.
  • the tension of the gram/denier is used to stretch the ultra-high molecular weight polyethylene film or strip.
  • the tension is from 0.4 g/denier to 5 g/denier.
  • the tension is from 0.5 g/denier to 3 g/denier.
  • the gap is less than or equal to 10 mm.
  • the gap is less than or equal to 5 mm.
  • said The gap is less than or equal to 3 mm.
  • the gap is less than or equal to 2 mm.
  • the method further comprises: hot pressing the N single layers through the bundled yarn to insert the whole bundle.
  • the hot pressing control conditions include: a temperature of 40 ° C to 160 ° C, and / or a pressure of 0.5 MPa to 30 MPa.
  • the binding yarn comprises one or more of the following combinations: polyester fiber, polyolefin fiber, polyamide fiber, ultra high molecular weight polyethylene. Fiber or strip.
  • the relevant parameters of the ultrahigh molecular weight polyethylene film satisfy at least one or more of the following: a linear density of more than 5000 denier; a width of 100 mm or more; The thickness is 0.2 mm or less; the breaking strength is 10 g/denier or more; the tensile modulus is 800 g/denier or more; and the elongation at break is 6% or less.
  • the relevant parameters of the ultrahigh molecular weight polyethylene strip satisfy at least one or more of the following: a linear density of more than 100 denier; a width of 1 100mm; thickness less than 0.2mm; breaking strength above 10g / denier; tensile modulus above 800g / denier; elongation at break below 6%.
  • the spreading direction of any of the ultrahigh molecular weight polyethylene films or strips is the width direction thereof.
  • the width direction of the ultrahigh molecular weight polyethylene film or strip is perpendicular to the molecular chain extending direction of the ultrahigh molecular weight polyethylene film or strip.
  • the embodiment of the present application provides a fabric prepared by using the preparation method of any of the fabrics provided in the embodiments of the present application.
  • an embodiment of the present application provides a fabric obtained by bundling N single layers up and down by a binding yarn, wherein any one of the single layers includes successively parallelly spreading a plurality of ultra high molecular weight poly a vinyl film or strip, wherein at least two adjacent single layers of the N single layers intersect at an angle, and N is an integer greater than or equal to 2.
  • At least one of the ultrahigh molecular weight polyethylene film or strip surface is coated with a binder.
  • the binder comprises one or a mixture of the following: a polystyrene isoprene copolymer, a polystyrene triblock interpolymer, Hydrogenated polystyrene triblock interpolymer, ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, aqueous polyurethane.
  • the adhesive content is 0.3% to 20%, wherein the adhesive content is: the coated adhesive and the coated Said sheet of the adhesive The weight ratio of ultra high molecular weight polyethylene film or strip.
  • the binder content is from 1% to 15%.
  • the binder content is from 3% to 12%.
  • any two of the ultrahigh molecular weight polyethylene films or strips adjacent to each other have no gap or gap therebetween.
  • the gap is less than or equal to 10 mm.
  • the gap is less than or equal to 5 mm.
  • the gap is less than or equal to 3 mm.
  • the gap is less than or equal to 2 mm.
  • the binding yarn comprises a combination of one or more of the following: polyester fiber, polyolefin fiber, polyamide fiber, ultra high molecular weight polyethylene fiber or strip. band.
  • the relevant parameters of the ultrahigh molecular weight polyethylene film satisfy at least one or more of the following: a linear density of more than 5000 denier; a width of 100 mm or more; a thickness of 0.2 mm.
  • the breaking strength is above 10 g/denier; the tensile modulus is above 800 g/denier; and the elongation at break is below 6%.
  • the relevant parameters of the ultrahigh molecular weight polyethylene strip satisfy at least one or more of the following: a linear density of more than 100 denier; a width of 1-100 mm; a thickness 0.2 mm or less; breaking strength is 10 g/denier or more; tensile modulus is 800 g/d or more; elongation at break is 6% or less.
  • the spreading direction of any of the ultrahigh molecular weight polyethylene films or strips is the width direction thereof.
  • the width direction of the ultrahigh molecular weight polyethylene film or strip is perpendicular to the molecular chain extending direction of the ultrahigh molecular weight polyethylene film or strip.
  • the embodiment of the present application provides a protective article, including any of the fabrics provided by the embodiments of the present application.
  • the preparation method of the fabric provided by the embodiment of the present application has the advantages of simple and easy process, high production efficiency, low requirement on equipment precision, and favorable reduction of equipment purchase cost.
  • each of the ultra-high molecular weight polyethylene films or strips in each single layer is in the straight state of the same arrangement direction, and the layers are not interwoven or interspersed.
  • another single layer is overlapped and laid on the basis of the single layer at an angle, and the prepared N single layers are then bundled into a whole by the binding yarn, and the entire preparation process does not need to be used for each single layer.
  • Hot pressing and the like thereby reducing the probability of damage to the performance of each single layer of ultrahigh molecular weight polyethylene film or strip during the preparation of the fabric; in addition, due to a plurality of single layers stacked at an angle and bundled
  • the presence of yarn can effectively improve the inter-layer performance of the fabric, make full use of the performance of the ultra-high molecular weight polyethylene film or strip, and improve the mechanical properties such as tensile, tensile and impact resistance of the fabric.
  • the fabric provided by the embodiment of the present invention can be obtained by the fabric preparation method provided by the embodiment of the present application. Alternatively, it can be obtained by other methods, in which each ultra-high molecular weight polyethylene film or strip layer of each single layer included in the fabric is completely straight and arranged in parallel, and different single layers are connected through the binding yarns to form a certain
  • the double-layer or multi-layer fabric with overlapping angles has good designability, soft hand feeling and high tensile strength, and the structural integrity of the fabric is good, which is beneficial to the subsequent application processing.
  • the protective preparation provided by the embodiment of the present invention includes any of the fabrics provided by the embodiments of the present application, and has the advantages of light weight, good impact resistance and good anti-elasticity, and is widely used.
  • FIG. 1 is a flow chart of a method for preparing a fabric according to an embodiment of the present application
  • FIG. 2 is a structural example of a single layer formed by parallel spreading of a plurality of ultrahigh molecular weight polyethylene films or strips according to an embodiment of the present application;
  • 3a is an example 1 of a warp-knit biaxial fabric structure made based on an ultrahigh molecular weight polyethylene film or strip according to an embodiment of the present application;
  • Fig. 3b is a second example of a warp-knit biaxial fabric structure made based on an ultrahigh molecular weight polyethylene film or strip according to an embodiment of the present application.
  • the embodiment of the present application provides a method for preparing a fabric. As shown in FIG. 1 , the method for preparing the fabric includes:
  • S101 sequentially laminating a plurality of ultra-high molecular weight polyethylene films or strips in parallel to form a single layer.
  • the ultrahigh molecular weight polyethylene film is a sheet of ultra-high molecular weight polyethylene having a certain width and thickness and a width much larger than the thickness.
  • the ultrahigh molecular weight polyethylene strip can be independently prepared or strip-shaped sheets formed by a slitting process before and after stretching of the film, the width of the strip being smaller than the width of the film, and the thickness being equal to or smaller than the thickness of the film.
  • the ultrahigh molecular weight polyethylene film or strip provided by the present application is different from the ultrahigh molecular weight polyethylene fiber, and is different from the plane formed by the bonding of a plurality of ultrahigh molecular weight polyethylene fibers, and the significant difference is that the present application provides
  • the ultrahigh molecular weight polyethylene film or strip itself has a certain width and thickness and is a unitary structure without joint points or cutting lines.
  • the plurality of ultrahigh molecular weight polyethylene films or strips may be sequentially and continuously spread in parallel in a certain direction, so that the plurality of ultrahigh molecular weight polyethylene films or strips are in a straight state in the same direction, so that a single sheet can be formed Layer, as shown in Figure 2.
  • S102 successively spreading a plurality of ultrahigh molecular weight polyethylene films or strips on the currently formed single layer to form another single layer; repeating this step until the stacked N single layers are formed, wherein At least two adjacent single layers of the N single layers intersect at an angle, and N is an integer greater than or equal to 2.
  • Different single layers are prepared in a similar manner, wherein the upper single layer is spread on the next single layer, and the straight directions of the two adjacent single-layer ultra-high-component polyethylene films or strips are intersected at an angle.
  • the angle can be any angle between 0 and ⁇ 180 degrees, and the adjacent single layer can be selected according to the use of the fabric.
  • the embodiment of the present application is not limited thereto, and the implementation manner is very flexible, for example, ⁇ 30. Degree, ⁇ 45 degrees, ⁇ 90 degrees, and so on.
  • the angle of intersection between different adjacent single layers can be determined according to actual needs. For example, N single layers can be alternately changed from “0 degrees to 90 degrees to 0 degrees to 90 degrees...” in sequence. The "0 degrees - 30 degrees - 45 degrees - 90 degrees " increase in order, thereby improving the fabric's impact resistance, bullet resistance and other properties.
  • N single layers are prepared, and there is no interlacing or interpenetration between the layers, which is equivalent to N single layers which are stacked at a certain angle.
  • the N single layers can be intertwined into a single body by a binding yarn, whereby N single layers are consolidated to form the fabric.
  • the fabric formed may be a woven fabric, or may be a warp-knit biaxial fabric (as shown in Figures 3a and 3b), or may be a warp-knit multi-axial fabric, etc., a specific structural form of the fabric. Diversification, this embodiment of the application is not limited thereto.
  • the preparation method of the fabric provided by the embodiment of the present application has the advantages of simple and easy process, high production efficiency, low requirement on equipment precision, and favorable reduction of equipment purchase cost.
  • each of the ultra-high molecular weight polyethylene films or strips in each single layer is in the straight state of the same arrangement direction, and the layers are not interwoven or interspersed.
  • another single layer is overlapped and laid on the basis of the single layer at an angle, and the prepared N single layers are then bundled into a whole by the binding yarn, and the entire preparation process does not need to be used for each single layer.
  • Hot pressing and the like thereby reducing the probability of damage to the performance of each single layer of ultrahigh molecular weight polyethylene film or strip during the preparation of the fabric; in addition, due to a plurality of single layers stacked at an angle and bundled
  • the presence of yarn can effectively improve the inter-layer performance of the fabric, make full use of the performance of the ultra-high molecular weight polyethylene film or strip, and improve the mechanical properties such as tensile, tensile and impact resistance of the fabric.
  • the ultra-high molecular weight polyethylene film or the strip is treated as a whole, the structure is good, the preparation process is simple, and the plurality of fibers are omitted.
  • the complex process of separately finishing the wire significantly reduces the probability of burrs on the surface of the film or strip, and also significantly reduces the probability of occurrence of broken wires, twists, entanglements, etc. inside the film or strip, thereby facilitating the preparation of the prepared
  • the fabric achieves high performance in terms of strength, bullet resistance and the like.
  • the method further comprises: coating at least one surface of the ultrahigh molecular weight polyethylene film or strip Mixture; dry coated the adhesive.
  • the embodiment of the present application applies an adhesive on the surface of the ultrahigh molecular weight polyethylene film or strip, and the coated adhesive hardly plays a role in the preparation process of the fabric, that is, different in the preparation process of the fabric.
  • the layers are not primarily bonded by an ultrahigh molecular weight polyethylene film or strip coated adhesive (the N single layers are interspersed into one piece by a bundle of yarns), but in subsequent applications Playing a major role, in particular, due to the presence of an ultrahigh molecular weight polyethylene film or a binder coated on the surface of the strip, the prepared fabric is subjected to external impact, such as impact by external bullets, the binder It can effectively reduce the probability that the fabric will be delaminated due to the impact of the shell, thus The overall bulletproof performance of high fabric products.
  • the binder is convenient to take, and may include, but is not limited to, a mixture of one or more of the following: polystyrene isoprene copolymer, polystyrene triblock interpolymer, hydrogenated polystyrene triblock interpolymer , ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, waterborne polyurethane.
  • polystyrene isoprene copolymer polystyrene triblock interpolymer
  • hydrogenated polystyrene triblock interpolymer ethylene vinyl acetate copolymer
  • ethylene acrylic acid copolymer ethylene acrylic acid copolymer
  • waterborne polyurethane waterborne polyurethane.
  • the manner of application of the adhesive can be, but is not limited to, doctor blade, spray coating, dipping, hot melt transfer or micro gravure, etc., and the implementation is very flexible.
  • the micro-concave roll coating can adopt the reticulated coating roller with a diameter of generally between ⁇ 20 mm and ⁇ 50 mm for the reverse and contact coating of the adhesive, that is, the rotation direction of the micro coating roller and the ultrahigh molecular weight polyethylene film. Or the strips are oriented in the opposite direction.
  • the micro-concave coating method does not require a back pressure roller, so that no defects such as offset printing and wrinkles are formed on the coated surface, and the coating film can also be applied.
  • the edge is glued to precisely control the content of ultra-high molecular weight polyethylene film or strip surface adhesive.
  • the binder content refers to a weight ratio of the coated binder to a single sheet of the ultrahigh molecular weight polyethylene film or strip coated with the binder, optionally, the binder
  • the mixture content is from 0.3% to 20%, preferably, the binder content is from 1% to 15%, and more preferably, the binder content is from 3% to 12% by passing the ultrahigh molecular weight polyethylene
  • the content of the surface-coated adhesive of the film or strip is controlled to the extent possible as described above, which is advantageous in achieving the best adhesion between the fabrics with as little adhesive as possible. The delamination probability of the fabric article after the impact is minimized as much as possible.
  • the ultra-high molecular weight polyethylene film or strip to be coated with the adhesive is further included Surface modification treatment.
  • the surface modification treatment can effectively reduce the surface inertness of the ultrahigh molecular weight polyethylene film or strip and improve the adhesion between the adhesive and the ultrahigh molecular weight polyethylene film or strip.
  • the manner of surface modification treatment of the ultrahigh molecular weight polyethylene film or strip can be determined according to actual needs, for example, but not limited to ion treatment, irradiation surface grafting, corona discharge treatment, chemistry Cross-linking processing, etc., the implementation is very flexible.
  • the ultrahigh molecular weight polyethylene film or strip is subjected to surface modification treatment by corona discharge treatment, that is, corona treatment of the ultrahigh molecular weight polyethylene film or strip to be coated with the binder
  • corona discharge treatment that is, corona treatment of the ultrahigh molecular weight polyethylene film or strip to be coated with the binder
  • the surface and/or the lower surface are simple in processing, easy to control, and have a good surface modification effect.
  • the power of the corona treatment is 0.1 Kw to 3 Kw
  • the ultra-high molecular weight polyethylene film or strip is surface-modified by using the power range, and the U-high molecular weight polyethylene film or strip can be effectively damaged without damage.
  • the surface inertness of the ultrahigh molecular weight polyethylene film or strip is lowered, and the adhesion to the adhesive is improved.
  • the power of the corona treatment is 0.3 Kw ⁇ 2Kw, preferably, the power of the corona treatment is 0.5Kw to 1Kw, and the efficiency and effect of the surface treatment of the ultrahigh molecular weight polyethylene film or strip can be further improved by continuously optimizing the power control parameters of the corona treatment.
  • the adhesion of the ultrahigh molecular weight polyethylene film or strip to the adhesive coated on the surface thereof is further improved, and the adhesion between the individual layers of the fabric is also improved.
  • the ultrahigh molecular weight polyethylene film or strip is in a straight and non-pleated state by a certain tension control, for example,
  • a tension of 0.1 g/denier to 8 g/denr may be applied to both ends of the ultrahigh molecular weight polyethylene film or strip to not damage the ultrahigh molecular weight polyethylene film or
  • the ultrahigh molecular weight polyethylene film or strip is stretched out, thereby avoiding the influence of the ultrahigh molecular weight polyethylene film or the strip being unstretched or wrinkled to affect the bonding between the layers of the fabric.
  • the tension is from 0.4 g/denier to 5 g/denier, and preferably, the tension is from 0.5 g/denier to 3 g/denier, and the ultrahigh molecular weight polyethylene can be further improved by continuously optimizing the tension control parameters.
  • any single layer process formed by any of the technical solutions provided by the embodiments of the present application optionally, there is no gap or a small gap between any two adjacent ultra-high molecular weight polyethylene films or strips.
  • the gap-free layer includes two adjacent ultra-high molecular weight polyethylene films or strip edges that are closely adjacent or partially overlapped at the edges. Due to the deviation of the ultra-high molecular weight polyethylene film or strip, the so-called edges are closely adjacent without gaps, and the edges are closely adjacent without gaps within a certain tolerance.
  • the gap may be less than or equal to 10 mm, such a gap may make the fabric have a certain tightness At the same time, it is also beneficial to reduce the precision requirements of the preparation process. Further, the gap is less than or equal to 5 mm, preferably, the gap is less than or equal to 3 mm, and preferably, the gap is less than or equal to 2 mm, by passing any two adjacent ultrahigh molecular weight polyethylene films or strips The gap of the belt allows the setting of parameters to achieve a good balance between the precision of the preparation process and the performance of the fabric.
  • the ultra-high molecular weight polyethylene film or the strip size Due to a certain deviation of the ultra-high molecular weight polyethylene film or the strip size, if there is a certain deviation in the width of the ultra-high molecular weight polyethylene film or the strip, any one of the embodiments described in the present application layer in a single layer
  • the adjacent ultrahigh molecular weight polyethylene has no gap or a small gap, and the width deviation is allowed to be less than 2 mm, which is better than the width deviation tolerance range of the ultrahigh molecular weight polyethylene film or strip.
  • the width deviation is allowed to be less than 1 mm.
  • the width deviation is allowed to be less than 0.2 mm.
  • the N single layers are used on the bundled yarn.
  • the N single layers may also be hot-pressed through the bundled yarn to insert the bundled up and down to improve the adhesion between the fabric layers.
  • the control conditions of the hot pressing include: a temperature of 40° C. to 160° C., and/or a pressure of 0.5 MPa to 30 MPa, and the whole of the hot pressing treatment is performed by using the above parameters, thereby effectively reducing the hot pressing treatment.
  • the properties of the ultra-high molecular weight polyethylene film or strip of each of the N single layers are impaired, thereby ensuring the properties of the fabric.
  • the bundled yarns may be selected according to the actual application requirements, and may be a single yarn or a multifilament yarn, which is not limited by the embodiment of the present application.
  • the binding yarns may include, but are not limited to, a combination of one or more of the following: polyester fibers, polyolefin fibers, polyamide fibers.
  • the melting point of the above materials is not higher than the above-mentioned ultrahigh molecular weight polyethylene film or strip in the embodiment of the present application, so that the temperature parameter selected during the hot pressing process is not higher than the melting point of the ultrahigh molecular weight polyethylene film or strip. .
  • the binding yarn may further comprise, but is not limited to, ultra high molecular weight polyethylene fibers or strips, using ultra high molecular weight polyethylene fibers or strips as a plurality of bundled yarns of the single layer, due to the same or similar material properties, A better bundle effect can be achieved.
  • the relevant parameter of the ultrahigh molecular weight polyethylene film satisfies one or more of the following conditions: a linear density greater than or equal to 5000 denier; a width greater than or equal to 100 mm; a thickness less than or equal to 0.2 mm; and a breaking strength greater than or equal to 10 ⁇ / ⁇ ; tensile modulus greater than or equal to 800 g / den; elongation at break less than or equal to 6%.
  • the ultrahigh molecular weight polyethylene film satisfies one or more of the following conditions: a thickness of 0.001-0.2 mm, a breaking strength of 10-50 g/denier, a tensile modulus of 800-2600 g/denier, and a fracture.
  • the ultrahigh molecular weight polyethylene film has a linear density of 6000-80000 denier, a width of 100-400 mm, a thickness of 0.005-0.15 mm, a breaking strength of 12-48 g/denier, and a tensile modulus.
  • the elongation at break is from 0.8 to 25%, and the elongation at break is from 0.8 to 4%.
  • the ultrahigh molecular weight polyethylene film satisfies one or more of the following conditions: a linear density of 7000-60000 denier, a width of 105-300 mm, a thickness of 0.008-0.12 mm, and a breaking strength of 15-45 g/denier.
  • the tensile modulus is 1200-2500 g/denier and the elongation at break is 1-3%.
  • the ultrahigh molecular weight polyethylene film satisfies one or more of the following conditions: a linear density of 8000-40000 denier, a width of 110-220 mm, a thickness of 0.01-0.1 mm, and a breaking strength of 16-42 g/denier.
  • the tensile modulus is 1400-2400 g/denier and the elongation at break is 1.5-2.5%.
  • the relevant parameter of the ultrahigh molecular weight polyethylene strip meets one or more of the following requirements: a linear density greater than or equal to 100 denier, less than 5000 denier; a width of 1-100 mm; a thickness less than or equal to 0.2 mm; The strength is greater than or equal to 10 g/denier; the tensile modulus is greater than or equal to 800 g/denier; and the elongation at break is less than or equal to 6%.
  • the ultrahigh molecular weight polyethylene strip meets one or more of the following requirements: a thickness of 0.001-0.2 mm, a breaking strength of 10-50 g/denier, and a tensile modulus of 800-2600 g/denier.
  • the elongation at break is 0.5-6%.
  • the ultrahigh molecular weight polyethylene strip satisfies the following One or more requirements: a linear density of 150-4000 denier, a width of 2-90 mm, a thickness of 0.003-0.1 mm, a breaking strength of 12-48 g/denier, and a tensile modulus of 1000-2500 g/d, The elongation at break is 0.8-4%.
  • the ultrahigh molecular weight polyethylene strip meets one or more of the following requirements: a linear density of 200-3500 denier, a width of 3-80 mm, a thickness of 0.005-0.06 mm, and a breaking strength of 15-45 g.
  • the tensile modulus is 1200-2400 g / denier, and the elongation at break is 1-3%.
  • the ultrahigh molecular weight polyethylene strip meets one or more of the following requirements: a linear density of 300-3000 denier, a width of 5-60 mm, a thickness of 0.008-0.03 mm, and a breaking strength of 16-42 g.
  • the tensile modulus is 1400-2400 g/denier and the elongation at break is 1.5-2.5%.
  • the spreading direction of any of the ultrahigh molecular weight polyethylene films or strips is the width direction thereof.
  • the ultrahigh molecular weight polyethylene film or strip has a width direction perpendicular to the ultrahigh molecular weight.
  • the molecular chain of the polyethylene film or strip is oriented in the straight direction.
  • the molecular chain extending direction of the ultrahigh molecular weight polyethylene film or strip is the longitudinal stretching direction of the ultrahigh molecular weight polyethylene, which means that the macromolecular chain is consciously stretched along the longitudinal direction of the ultrahigh molecular weight polyethylene.
  • the direction in which the longitudinal direction is the direction of the force.
  • the ultrahigh molecular weight polyethylene film or strip has the highest strength along the direction in which the molecular chain is stretched, so that an ultrahigh molecular weight polyethylene film or strip is laid along the direction in which the molecular chain is stretched. It is beneficial to improve the strength utilization of the ultra-high molecular weight polyethylene film or strip, thereby improving the strength and the like of the fabric.
  • each ultra-high molecular weight polyethylene film or strip layer in each single layer is completely straight and arranged in parallel, and the different single layers are bundled.
  • the yarn is interspersed and connected to form a double-layer or multi-layer fabric with a certain angle.
  • the design is good, has a soft hand and high tensile strength, and the fabric has good structural integrity, which is beneficial for subsequent processing. .
  • a protective article which may include, but is not limited to, one or more of the following: a bulletproof insert, a bulletproof helmet, an armored backing, a helicopter seat, a hatch or Other types of ballistic resistant articles, etc., have shown that the articles of manufacture prepared using the fabrics have excellent impact resistance and ballistic performance.
  • the fabric is prepared by using an ultrahigh molecular weight polyethylene film having a width of 120 mm, a thickness of 0.025 mm, a linear density of 19,000 D, a breaking strength of 27 g/denier, and a tensile modulus of 1600 g/d.
  • the elongation at break was 1.9%.
  • the number of ultrahigh molecular weight polyethylene films required for a single layer can be determined according to the width of the desired single layer and the width of a single ultrahigh molecular weight polyethylene film, such as 32 sheets of the above ultrahigh component polyethylene film.
  • Adjacent parallel spreading forms a single layer, and 32 pieces of the above ultra-high-component polyethylene film are successively laid successively on the single layer to form another single layer, and the laying angle of the adjacent two single-layer ultrahigh molecular weight polyethylene films is 90 degrees.
  • An ultrahigh molecular weight polyethylene strip having a linear density of 300D is used as a binding yarn to intersperse the two layers of the single layer up and down as a whole, and the fabric thus formed is a warp knitted biaxial fabric.
  • 216 layers of the above-mentioned warp-knit biaxial fabrics were stacked, and then stacked and then hot pressed into a sheet under controlled conditions of a temperature of 125 ° C and a pressure of 20 MPa, thereby producing a protective article A.
  • the protective article A was tested to have a face of 6.5 kg/m 2 .
  • the protective article A was tested and the V50 (permeability probability of 50%) ballistic limit was 725m/s.
  • 900 layers of the above-mentioned warp-knit biaxial fabrics were stacked, and then stacked and then heat-pressed into sheets, thereby producing a protective article B.
  • the protective article B was tested to have a face of 21 kg/m 2 .
  • the performance test of the protective product B is carried out, and the test spring speed is 736 m/s. After testing, the ballistic performance of the protective product B can be measured to meet the GA141 level 5 standard.
  • Fabrics were prepared using ultra-high molecular weight polyethylene strips with a width of 50 mm, a thickness of 0.012 mm, a linear density of 5000 D, a breaking strength of 29 g/denier, and a tensile modulus of 1800 g/ Once, the elongation at break was 1.8%.
  • the number of sheets of ultrahigh molecular weight polyethylene strip required for a single layer can be determined according to the width of the desired single layer and the width of a single ultrahigh molecular weight polyethylene strip, such as 24 sheets of the above ultrahigh molecular weight polyethylene strip.
  • the strips are sequentially spread in parallel with a small gap (less than 2 mm) to form a single layer, and 24 pieces of the above-mentioned ultra-high-component polyethylene strips are successively laid successively on the single layer to form another single layer, and the super-high two adjacent single layers
  • the laying angle of the molecular weight polyethylene strip is 90 degrees.
  • the ultra-high molecular weight polyethylene strip with a linear density of 300D is used as a binding yarn to intersperse the two layers of the single layer into a whole.
  • the fabric thus formed is a warp knitted biaxial fabric.
  • the protective article C was tested to have a face of 6 kg/m 2 .
  • the 7.62mm special transmitter was used with 51 type 7.62mm increase or decrease of the drug bomb, and the product was tested.
  • the V50 (permeability probability is 50%) ballistic limit value is 630m/s.
  • the protective article D was tested to have a face of 3.5 kg/m 2 .
  • the test was carried out in accordance with Class IIIA requirements of NIJ 0101.04 at a rate of 436 m/s. After testing, it was measured that the anti-elastic property of the protective article D can meet the requirements of NIJ 0101.04IIIA.
  • the fabric is prepared by using an ultrahigh molecular weight polyethylene film having a width of 120 mm, a thickness of 0.025 mm, a linear density of 19,000 D, a breaking strength of 27 g/denier, and a tensile modulus of 1600 g/d. The elongation at break was 1.9%.
  • Each single-piece ultra-high molecular weight polyethylene film to be used is sized, and the adhesive is selected from an aqueous polyurethane emulsion, coated by dica coating, and sized. The amount is 6.5%.
  • the five ultrahigh molecular weight polyethylene films of the finished glue are closely adjacent to each other to form a single layer, and five superhigh-component polyethylene films are successively laid successively on the single layer to form another single layer.
  • the method completed the laying of four single layers, and the laying angle of the ultra-high molecular weight polyethylene film in the four single layers was "0 degree - 30 degrees - 45 degrees - 90 degrees".
  • the ultra-high molecular weight polyethylene strip with a linear density of 300D is used as a binding yarn to intersperse the two layers of the single layer into a whole, and the whole formed at a temperature of 100 ° C and a pressure of 10 MPa.
  • the hot pressing treatment is carried out under controlled conditions, and the fabric thus formed is a warp knitted biaxial fabric.
  • the protective article E has been tested to have a face of 6 kg/m 2 and the protective article can be made, but not limited to, a bulletproof helmet.
  • the GA141-2010 police body armor test standard is used for the impact detection, and the protective product E can meet the level 2 requirement of GA141-2010.
  • the protective article F was tested to have a face of 10.5 kg/m 2 .
  • the test standard of GA141-2010 police body armor and the technical requirements of GA68-2008 bulletproof and stab-resistant clothing are separately tested for impact and puncture.
  • the anti-ballistic and stab-resistant performance of protective products F can meet the requirements of Grade 3 of GA141-2010 and GA68- respectively. Level 2 requirements in 2008.
  • the ultra-high molecular weight polyethylene film or strip-based fabric and articles thereof provided by the embodiments of the present application show excellent ballistic resistance and can effectively resist the bullet threat.
  • This kind of fabric can be widely used in bulletproof inserts, bulletproof helmets, armored backings, helicopter seats and other protective products with the advantages of light weight and good bulletproof effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

La présente invention concerne un textile, un procédé de fabrication et un article de protection de celui-ci. Le procédé de fabrication du textile comprend les étapes consistant à : étaler de manière séquentielle et contiguë, en parallèle, une pluralité de morceaux de films ou de rubans de polyéthylène de très haut poids moléculaire (UHMW-PE) pour former une seule couche; étaler de manière séquentielle et contiguë, sur la couche unique actuelle formée, une pluralité de morceaux de films ou de rubans d'UHMW-PE pour former une autre couche unique; répéter l'étape jusqu'à ce que N couches uniques empilées soient formées, les directions d'au moins deux couches uniques voisines dans les N couches uniques se croisant pour former un certain angle, N étant un nombre entier supérieur ou égal à 2; et utiliser du fil de liage pour tisser les N couches uniques à travers les couches et lier celles-ci en tant qu'entité. La performance du textile est améliorée, de telle sorte que l'extensibilité, la résistance à la traction et l'absorption des chocs, et l'article de protection fabriqué à partir d'un textile présente un meilleur effet pare-balles.
PCT/CN2016/081572 2015-05-12 2016-05-10 Textile, ainsi que procédé de fabrication et article de protection de celui-ci Ceased WO2016180318A1 (fr)

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CN201510238843.XA CN104964606B (zh) 2015-05-12 2015-05-12 织物及其制备方法、防护制品

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CN106319747A (zh) * 2016-08-30 2017-01-11 常州市宏发纵横新材料科技股份有限公司 一种热压增强双轴向混编织物复合材料的生产工艺
CN110183841B (zh) * 2019-05-31 2021-11-05 泉州迈特富纺织科技有限公司 基于改性超高分子量聚乙烯纤维的软质防刺材料及其制备方法
CN114603934A (zh) * 2022-03-18 2022-06-10 南通海盟实业股份有限公司 高强度衬布坯布

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