CN117681518A - Air column material and preparation method and application thereof - Google Patents

Abstract

The invention relates to the technical field of functional textiles, in particular to an air column material and a preparation method and application thereof. The invention provides an air column material, which comprises base cloth and an airtight/protective layer compounded on the surface of the base cloth; the base fabric is a framework layer fabric; the preparation raw materials of the airtight/protective layer comprise thermoplastic polyurethane elastomer rubber and additives; the additive comprises antibacterial master batches and flame-retardant master batches. The air column material is flame-retardant, antibacterial, bacteriostatic, tear-resistant and antifouling; the technical problems that the existing air column is poor in flame retardant property, unsatisfactory in physical and mechanical properties and free from antibacterial property are well solved; and the raw materials are low in cost.

Description

Air column material and preparation method and application thereof

Technical field

The present invention relates to the technical field of functional textiles, and in particular to an air column material and its preparation method and application.

Background technique

Emergency tents are basic equipment used by institutions at all levels to carry out rescue work after natural disasters. They can establish pollution-free safe working, living and resting spaces. They can be used in various places such as personnel shelter, first aid surgery, epidemic prevention inspection and rescue command. , Emergency tents must be deployed quickly during disaster rescue and support tasks, be easy for rescuers to carry, be light in weight, small in size, and can be transported manually. The air column is a key part of the tent. Its material design should be based on meeting the requirements of air tightness and internal pressure. It should also have properties such as flame retardant, antibacterial, tear resistance, antifouling, wear resistance and weather resistance. Existing air columns generally use rubber and PVC-coated composite fabrics. These air columns have technical problems such as poor flame retardancy, unsatisfactory physical and mechanical properties, and no antibacterial properties.

Contents of the invention

The object of the present invention is to provide an air column material and its preparation method and application. The air column material is flame retardant, antibacterial, bacteriostatic and has good physical and mechanical properties.

In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

The invention provides an air column material, which includes a base fabric and an airtight/protective layer compounded on the surface of the base fabric;

The base fabric is a skeleton layer fabric;

The raw materials for preparing the airtight/protective layer include thermoplastic polyurethane elastomer rubber and additives;

The additives include antibacterial masterbatch and flame retardant masterbatch.

Preferably, the skeleton layer fabric is plain weave fabric;

The grammage of the skeleton layer fabric is 100-120g/m ² .

Preferably, the material of the skeleton layer fabric is one or more of ultra-high molecular weight polyethylene, flame-retardant polyester, flame-retardant nylon and aramid.

Preferably, the material of the skeleton layer fabric includes ultra-high molecular weight polyethylene and flame-retardant polyester with a mass ratio of 5:95 to 95:5;

Or the material of the skeleton layer plant includes ultra-high molecular weight polyethylene and aramid with a mass ratio of 5:95 to 95:5.

Preferably, the flame retardant masterbatch includes bromine flame retardant masterbatch and/or phosphorus flame retardant masterbatch;

The brominated flame retardant masterbatch includes brominated polyphenyl ether;

The phosphorus flame retardant masterbatch includes tripolyphosphate.

Preferably, the antibacterial masterbatch includes one or more of silver, aluminum chloride and copper chloride.

Preferably, the single-sided weight of the airtight/protective layer is 110-130g/m ² ;

The thickness of the airtight/protective layer is 0.01-0.1mm.

Preferably, the preparation method of the airtight/protective layer includes the following steps:

Mix thermoplastic polyurethane elastomer rubber and additives to obtain film-forming raw materials;

The film-forming raw material is subjected to film-forming treatment using a tape-casting composite processing technology to obtain the air-tight/protective layer.

The present invention also provides the application of the air column material described in the above technical solution in an antibacterial tent.

The invention provides an air column material, which includes a base fabric and an airtight/protective layer compounded on the surface of the base fabric; the base fabric is a skeleton layer fabric; the raw materials for preparing the airtight/protective layer include thermoplastic polyurethane Elastomer rubber and additives; the additives include antibacterial masterbatch and flame retardant masterbatch. The air column material of the present invention is flame-retardant, antibacterial, bacteriostatic, tear-resistant and anti-fouling; it effectively solves the problems of existing air column technologies with poor flame retardant performance, unsatisfactory physical and mechanical properties, and no antibacterial performance. problems; and the raw materials are cheap;

Compared with the existing technology, the technical solution described in the present invention has the following beneficial effects:

The present invention uses film-forming raw materials including thermoplastic polyurethane elastomer rubber and additives (antibacterial masterbatch and flame retardant masterbatch) as raw materials for preparing the airtight/protective layer, which can improve the adhesion between coatings; and the preparation of the airtight/protective layer The raw materials for preparing the protective layer also have the characteristics of tough film, impact resistance, strong adhesion, low temperature resistance, oil resistance and wear resistance; it can also reduce the penetration of adhesive into the skeleton layer fabric and enhance the tearing strength of the fabric. , improve the physical and mechanical properties of the air column material;

The unit area mass of the air column material of the present invention is 320-380g/m ² , the breaking strength is greater than 1450N in the warp direction and 1200N in the weft direction, and the tearing strength is greater than 45N in the warp direction and greater than 40N in the weft direction. The afterburning time is not more than 5.5s in the longitude direction and not more than 4.7s in the weft direction. The smoldering time is not more than 2s in the longitude direction and not more than 2s in the weft direction. The damage length is not more than 12cm in the longitude direction and not more than 11cm in the weft direction. The gold will be cleaned after washing. The antibacterial rate of Staphylococcus aureus, Candida albicans and Escherichia coli is greater than 85%, and the contamination resistance to solid dirt is greater than or equal to level 5. The air column material can meet the needs of most tent air columns.

Description of the drawings

Figure 1 is a schematic diagram of the preparation process of the air column material described in Examples 1 to 4.

Detailed ways

The invention provides an air column material, which includes a base fabric and an airtight/protective layer compounded on the surface of the base fabric;

The base fabric is a skeleton layer fabric;

The raw materials for preparing the airtight/protective layer include thermoplastic polyurethane elastomer rubber and additives;

The additives include antibacterial masterbatch and flame retardant masterbatch.

In the present invention, unless otherwise specified, all preparation raw materials are commercially available products well known to those skilled in the art.

In the present invention, the base fabric is a skeleton layer fabric; the skeleton layer fabric is preferably a plain weave fabric; the grammage of the skeleton layer fabric is preferably 100-120g/m ² , more preferably 105-115g/m ² , most preferably 108 to 112g/m ² . In the present invention, the denier number of the base fabric is preferably 20-70D, more preferably 30-60D, and most preferably 40-50D.

In the present invention, the material of the skeleton layer fabric is preferably one or more of ultra-high molecular weight polyethylene, flame-retardant polyester, flame-retardant nylon and aramid; more preferably, the material includes a mass ratio of 5:95 to 95: 5 ultra-high molecular weight polyethylene and flame-retardant polyester; or ultra-high molecular weight polyethylene and aramid with a mass ratio of 5:95 to 95:5.

In the present invention, the preparation method of the skeleton layer fabric preferably includes the following steps:

After the raw materials for preparing the skeleton layer fabric are spun into yarn, they are sequentially warped, warped, sized, drawn and weaved to obtain a plain weave fabric;

The plain weave fabric is singed, desized, scoured, bleached and cleaned in sequence to obtain the skeleton layer fabric.

In the present invention, after the raw material for preparing the skeleton layer fabric is spun into yarn, the yarn is then subjected to convolution, warping, sizing, drawing and weaving in sequence to obtain a plain weave fabric.

In the present invention, the temperature of the spun yarn is preferably 24-36°C, more preferably 28-32°C; the humidity of the spun yarn is preferably 51-62%, more preferably 54-58% .

The present invention does not have any special limitations on the processes of winding, warping, sizing, drawing-in and weaving, and can be carried out using processes well known to those skilled in the art.

After obtaining the plain weave fabric, the present invention sequentially performs singeing, desizing, scouring, bleaching and cleaning on the plain weave fabric to obtain the skeleton layer fabric.

The present invention does not have any special limitations on the processes of singeing, desizing, scouring, bleaching and cleaning, and it can be carried out using processes well known to those skilled in the art.

In the present invention, the raw materials for preparing the airtight/protective layer include thermoplastic polyurethane elastomer rubber and additives; the additives include antibacterial masterbatch and flame retardant masterbatch.

In the present invention, the flame retardant masterbatch preferably includes bromine-based flame retardant masterbatch and/or phosphorus-based flame retardant masterbatch; the bromine-based flame retardant masterbatch preferably includes brominated polyphenyl ether; the phosphorus-based flame retardant masterbatch The combustion masterbatch preferably includes tripolyphosphate; the antibacterial masterbatch preferably includes one or more of silver, aluminum chloride and copper chloride, when the antibacterial masterbatch is two or more of the above specific selections , the present invention does not have any special restrictions on the proportion of the above specific substances, and they can be mixed in any proportion.

In the present invention, the single-sided weight of the airtight/protective layer is preferably 110 to 130g/m ² , more preferably 115 to 125g/m ² , and most preferably 118 to 122g/m ² ; the airtight layer /The thickness of the protective layer is preferably 0.01 to 0.1 mm, more preferably 0.02 to 0.08 mm, and most preferably 0.04 to 0.06 mm.

In the present invention, the preparation method of the airtight/protective layer preferably includes the following steps:

Mix thermoplastic polyurethane elastomer rubber and additives to obtain film-forming raw materials;

The film-forming raw material is subjected to film-forming treatment using a tape-casting composite processing technology to obtain the air-tight/protective layer.

The invention mixes thermoplastic polyurethane elastomer rubber and additives to obtain film-forming raw materials.

The present invention does not have any special limitations on the mixing process, and it can be carried out using processes well known to those skilled in the art.

After obtaining the film-forming raw materials, the present invention uses a tape-casting composite processing process to perform film-forming treatment on the film-forming raw materials to obtain the airtight/protective layer.

In the present invention, the film-forming treatment process preferably includes heating and melting the film-forming raw materials through an extruder in sequence, extruding them from the film opening, pouring them onto a cooling roller for cooling and forming, and then sequentially carrying out traction, electric Corona treatment, trimming and curling; the present invention does not have any special limitations on the processes of heating and melting, extrusion, cooling molding, traction, corona treatment, trimming and curling, and can be carried out using processes well known to those skilled in the art. Can.

In the present invention, the preparation method of the air column material preferably includes the following steps:

The base fabric and the airtight/protective layer are combined with PU hot melt adhesive by surface coating to obtain the air column material.

In the present invention, the glue amount of the PU hot melt adhesive is preferably 11±1g/m ² .

The present invention also provides the application of the air column material described in the above technical solution in an antibacterial tent; the antibacterial tent is preferably a disaster relief tent, a medical tent, an emergency tent or a sanitary tent.

The air column material provided by the present invention and its preparation method and application will be described in detail below with reference to examples, but they should not be understood as limiting the scope of the present invention.

Example 1

As shown in Figure 1, ultra-high molecular weight polyethylene fiber is spun into yarn in a production environment with a temperature of 36°C and a humidity of 51%, and is then subjected to cones, warping, sizing, drawing and weaving to obtain Plain weave fabric; subject the plain weave fabric to singeing, desizing, scouring, bleaching and cleaning in sequence to obtain the skeleton layer fabric;

After mixing TPU (thermoplastic polyurethane elastomer rubber), flame-retardant masterbatch (the specific substance is brominated polyphenyl ether) and antibacterial masterbatch (the specific substance is silver), the obtained film-forming raw materials are sequentially passed through the extruder. After heating and melting, it is extruded from the film opening, poured onto the cooling roller for cooling and forming, and then traction, corona treatment, trimming and curling are performed in sequence to obtain an airtight/protective layer;

Adopt the method of surface coating with glue (the glue amount of PU hot melt glue is 11±1g/m ² ), and use PU hot melt glue to composite the base fabric and the airtight/protective layer to obtain the air column material;

The air column material was tested for unit area mass, breaking strength (GB/T 3923.2-2013), tearing strength (GB/T 3917.3-2009), flame retardant performance (GB/T 5455-2014 standard), and antibacterial performance ( GB/T20944) and stain resistance (GB/T 30159) test, the test results are shown in Table 1.

Example 2

Referring to Example 1, the only difference is that the ultra-high molecular weight polyethylene fiber is replaced with ultra-high molecular weight polyethylene and flame-retardant polyester with a mass ratio of 5:95; the prepared air column material is tested for unit area mass, breaking strength ( GB/T3923.2-2013), tearing strength (GB/T 3917.3-2009), flame retardant performance (GB/T 5455-2014 standard), antibacterial performance (GB/T20944) and stain resistance (GB/T30159) Test, the test results are shown in Table 1.

Example 3

Referring to Example 1, the only difference is that: the ultra-high molecular weight polyethylene fiber is replaced with ultra-high molecular weight polyethylene and flame-retardant polyester with a mass ratio of 95:5; the prepared air column material is tested for unit area mass, breaking strength ( GB/T3923.2-2013), tearing strength (GB/T 3917.3-2009), flame retardant performance (GB/T 5455-2014 standard), antibacterial performance (GB/T20944) and stain resistance (GB/T30159) Test, the test results are shown in Table 1.

Example 4

Referring to Example 1, the only difference is that the ultra-high molecular weight polyethylene fiber is replaced with ultra-high molecular weight polyethylene and aramid fiber with a mass ratio of 95:5; the prepared air column material is tested for unit area mass, breaking strength (GB /T 3923.2-2013), tearing strength (GB/T 3917.3-2009), flame retardant performance (GB/T 5455-2014 standard), antibacterial performance (GB/T20944) and stain resistance (GB/T30159) testing , the test results are shown in Table 1.

Table 1 Performance parameters of the air column materials described in Examples 1 to 4

It can be seen from Table 1 that the mass per unit area of the air column material of the present invention is (320~380) g/m ² , the breaking strength in the warp direction is greater than 1400N, and the weft direction is greater than 1200N. The tearing strength is greater than 45N in the warp direction, and greater than 45N in the weft direction. . The afterburning time is no more than 2s in the longitude direction and no more than 2s in the weft direction. The smoldering time is no more than 2s in the longitude direction and no more than 2s in the weft direction. The damage length is no more than 100mm in the longitude direction and no more than 100mm in the weft direction. After washing, the antibacterial rate against Staphylococcus aureus, Candida albicans, and Escherichia coli is greater than 80%, and the contamination resistance against solid dirt is greater than or equal to level 5. The process of the present invention is mature, the raw materials are cheap, and can be produced in batches. It can be seen from Examples 1 to 4 that the breaking strength and tear strength of the air column material made by using ultra-high molecular weight polyethylene fiber and flame-retardant nylon blended fabric in Example 3 are The breaking strength is worse than the air column material made of other fibers, but the flame retardant performance is not as good as the air column material made of polyethylene and aramid blended fabric in Example 4. In Example 1, the air column material made of polyethylene fabric is selected. Compared with other blended fibers, its breaking strength is lower, and the other properties are not much different. Example 2 selects an air column material made of polyethylene and polyester blended fabrics, and all indicators are relatively average. Through comprehensive comparative analysis, different types of fabrics can be selected according to actual needs to prepare air column materials that meet the requirements and have excellent comprehensive performance.

The above are only the preferred embodiments of the present invention. It should be pointed out that those of ordinary skill in the art can also make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications can also be made. should be regarded as the protection scope of the present invention.

Claims (9)

1. An air column material is characterized by comprising a base cloth and an airtight/protective layer compounded on the surface of the base cloth;

the base fabric is a framework layer fabric;

the preparation raw materials of the airtight/protective layer comprise thermoplastic polyurethane elastomer rubber and additives;

the additive comprises antibacterial master batches and flame-retardant master batches.

2. The air column material of claim 1, wherein said carcass layer fabric is a plain weave fabric;

the gram weight of the framework layer fabric is 100-120 g/m ² 。

3. The air column material according to claim 2, wherein the material of the framework layer fabric is one or more of ultra-high molecular weight polyethylene, flame-retardant terylene, flame-retardant chinlon and aramid.

4. The air column material according to claim 1, wherein the material of the framework layer fabric comprises ultra-high molecular weight polyethylene and flame retardant polyester in a mass ratio of 5:95-95:5;

or the material of the framework layer plant comprises ultra-high molecular weight polyethylene and aramid fiber with the mass ratio of 5:95-95:5.

5. The gas column material according to claim 1, wherein the flame retardant master batch comprises a brominated flame retardant master batch and/or a phosphorus flame retardant master batch;

the brominated flame-retardant master batch comprises brominated polyphenylene ether;

the phosphorus flame-retardant master batch comprises tripolyphosphate.

6. The gas column material of claim 1, wherein the antimicrobial master batch comprises one or more of silver, aluminum chloride, and copper chloride.

7. The gas column material according to any one of claims 1 to 6, wherein the airtight/protective layer has a single-sided grammage of 110 to 130g/m ² ；

The thickness of the airtight/protective layer is 0.01-0.1 mm.

8. The gas column material according to claim 7, wherein the method of preparing the gas-tight/protective layer comprises the steps of:

mixing thermoplastic polyurethane elastomer rubber with an additive to obtain a film forming raw material;

and (3) adopting a casting composite processing technology to carry out film forming treatment on the film forming raw material to obtain the airtight/protective layer.

9. Use of the air column material according to any one of claims 1 to 8 in an antibacterial tent.