CN110628191A - Red phosphorus flame-retardant master batch special for polyester fiber and manufacturing method thereof - Google Patents

Red phosphorus flame-retardant master batch special for polyester fiber and manufacturing method thereof Download PDF

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Publication number
CN110628191A
CN110628191A CN201911012288.3A CN201911012288A CN110628191A CN 110628191 A CN110628191 A CN 110628191A CN 201911012288 A CN201911012288 A CN 201911012288A CN 110628191 A CN110628191 A CN 110628191A
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red phosphorus
master batch
phosphorus flame
retardant
retardant master
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杨宇
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Nantong Ielts Flame Retardant Technology Co Ltd
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Nantong Ielts Flame Retardant Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/22Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/07Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2427/18Homopolymers or copolymers of tetrafluoroethylene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2467/02Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K2003/026Phosphorus
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2255Oxides; Hydroxides of metals of molybdenum
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/346Clay
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/04Ingredients treated with organic substances
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/10Encapsulated ingredients

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention discloses a red phosphorus flame-retardant master batch special for polyester fiber and a manufacturing method thereof, wherein the red phosphorus flame-retardant master batch comprises, by weight, 10% -90% of a polyester resin carrier, 5% -85% of a red phosphorus flame retardant, 0.1% -2% of an anti-dripping agent, 2% -5% of a smoke suppressant and 2% -5% of montmorillonite. The red phosphorus flame-retardant master batch prepared by the invention has the characteristics of good flame retardance, no dripping, good heat resistance, low smoke density, low cost, convenient use and the like, and meanwhile, when the flame-retardant master batch is used for producing polyester staple fibers and filaments, the production process can be simplified, the production efficiency can be improved, dust flying can be reduced, the environmental pollution can be avoided, the clean production is facilitated, and the red phosphorus flame-retardant master batch is easy to be uniformly mixed with polyester slices, has good dispersion effect and the like, so that the product quality, the performance index of products and the like are further improved.

Description

Red phosphorus flame-retardant master batch special for polyester fiber and manufacturing method thereof
Technical Field
The invention relates to the technical field of preparation of flame-retardant master batches, in particular to a red phosphorus flame-retardant master batch special for polyester fibers and a manufacturing method thereof.
Background
The terylene is a synthetic fiber variety with the largest world output and the most extensive application, and accounts for more than 60 percent of the world synthetic fiber output. The fiber is widely used for textiles such as clothing materials, bedding, various decorative fabrics, national defense and military industry special fabrics and other industrial fiber products. With the continuous and rapid increase of domestic economy and the continuous improvement of domestic resident consumption capability, the demand of the polyester staple fiber in domestic areas is also continuously increased.
According to requirements, the flame retardant polyester can be added with a flame retardant to realize the flame retardant function of polyester fibers, filaments and fabrics, the flame retardant polyester is modified polyester fibers with the limited oxygen index LOI of 26 ~ 34, most of the flame retardant polyester (including filaments and short fibers) has physical and mechanical properties, appearance and post-processing properties similar to those of common polyester, only a few fibers (such as Wistel Fr) have strength slightly lower than that of common polyester but do not influence textile processing, the flame retardant polyester has excellent flame retardant performance, when the polyester is in fire, the polyester is only melted and not combusted, and the flame retardant performance is not changed even after being washed by 35 ~ 50 times of water, because the flame retardant fiber has loose structure and dye molecules are easy to enter, the dyeing speed is higher than that of the common polyester, and the polyester can be dyed by disperse dyes or cationic dyes, the manufacturing method mainly comprises (1) copolymerization flame retardant modification, such as using tetrabromobisphenol A hydroxyethyl ether or a phosphorus-containing compound as a comonomer, and then using dimethyl terephthalate and ethylene glycol to prepare a copolymer through ester exchange and polycondensation, then falling and stretching, and preparing the flame retardant fiber by blending modification, adding a flame retardant compound flame retardant in a curtain or antimony compound, and a flame retardant for finishing, and a flame retardant for a curtain or a flame retardant for a flame-retardant fabric, a spinning machine, a spinning and a flame-retardant for a spinning and a spinning machine, a flame retardant for a flame-containing fabric for a spinning machine, a flame-retardant for a spinning machine, a spinning machine.
The flame-retardant master batch special for the polyester fiber in the current market has large usage amount, large smoke density, dripping phenomenon and poor heat resistance; the flame-retardant polyester chip is directly used, has poor flame retardance, high smoke density, dripping phenomenon and high price, adopts a copolymerization flame-retardant modification method, and is prepared by adding a reactive flame retardant in the polyester production process. The formula of the flame-retardant polyester chip is fixed, so that the flame-retardant effect cannot be improved by increasing the dosage and adjusting by other methods, the flame retardance is poor, dripping phenomenon occurs, the price is high, and the market competitiveness is weak.
Disclosure of Invention
The invention aims to provide a red phosphorus flame-retardant master batch special for polyester fibers and a manufacturing method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the red phosphorus flame-retardant master batch special for the polyester fiber comprises, by weight, 10% -90% of a polyester resin carrier, 5% -85% of a red phosphorus flame retardant, 0.1% -2% of an anti-dripping agent, 2% -5% of a smoke suppressant and 2% -5% of montmorillonite.
Preferably, the red phosphorus flame retardant is coated red phosphorus, one or a mixture of more of microcapsule whiteness coated red phosphorus and red phosphorus; the fineness of the red phosphorus flame retardant is that the average particle size Dav is 1000 meshes-3000 meshes.
Preferably, the polyester resin carrier is one or a mixture of more of PBT resin, PET resin, EDCP resin and other polyester resin in the form of pellets or powder.
Preferably, the anti-dripping agent is one or a mixture of Polytetrafluoroethylene (PTFE) and anti-dripping agent FA 500H.
Preferably, the smoke suppressant is one or a mixture of more of molybdenum trioxide, ammonium octamolybdate and zinc stannate.
Preferably, the montmorillonite is one or a mixture of more of organic montmorillonite and organic bentonite DK-2.
Preferably, the manufacturing method comprises the following steps:
A. mixing a polyester resin carrier, a red phosphorus flame retardant, an anti-dripping agent, a smoke suppressant and montmorillonite in proportion, and then fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, heating the screw extruder to 80-300 ℃ for plasticizing, extruding and granulating, and drawing strips in water for granulating;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the vacuum pressure is 0.04-0.1 Meppa, or opening the vacuum system and starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Preferably, the raw material mixing in the step A adopts mixer mixing or vector type metering feeding equipment mixing or side feeding equipment mixing.
Preferably, the rotation speed of the screw extruder is 200-400 rpm.
Preferably, the red phosphorus content in the red phosphorus flame-retardant master batch special for the polyester fiber is between 5 and 85 percent.
Compared with the prior art, the invention has the beneficial effects that: the red phosphorus flame-retardant master batch prepared by the invention has the characteristics of good flame retardance, no dripping, good heat resistance, low smoke density, low cost, convenient use and the like, and meanwhile, when the flame-retardant master batch is used for producing polyester staple fibers and filaments, the production process can be simplified, the production efficiency can be improved, dust flying can be reduced, the environmental pollution can be avoided, the clean production is facilitated, and the red phosphorus flame-retardant master batch is easy to be uniformly mixed with polyester slices, has good dispersion effect and the like, so that the product quality, the performance index of products and the like are further improved. The flame-retardant polyester filament or staple fiber is mainly used for producing flame-retardant polyester filament or staple fiber, and the flame-retardant fiber is used for producing decorative fabrics such as indoor curtains, sofa covers, Simmons beds and carpets of high-rise buildings, hospitals and public places, can also be used for producing conveyer belts for coal mines, tarpaulin canvas and air conditioning fan drum cloth for cotton, hemp and wool spinning factories of textile enterprises, and can also be used for producing plastic products such as television, radio housings and the like in the plastic industry.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the following technical scheme: the red phosphorus flame-retardant master batch special for the polyester fiber comprises, by weight, 10% -90% of a polyester resin carrier, 5% -85% of a red phosphorus flame retardant, 0.1% -2% of an anti-dripping agent, 2% -5% of a smoke suppressant and 2% -5% of montmorillonite.
The first embodiment is as follows:
the red phosphorus flame-retardant master batch comprises 40 weight parts of PBT resin, 55 weight parts of a coated red phosphorus flame retardant, 1 weight part of polytetrafluoroethylene PTFE, 2 weight parts of molybdenum trioxide and 22 weight parts of organic bentonite DK.
The manufacturing method of the present embodiment includes the steps of:
A. mixing PBT resin, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of the screw extruder of 80 ℃, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 280rpm, and the vacuum pressure is 0.08 Mega, or opening the vacuum system and simultaneously starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Example two:
the red phosphorus flame-retardant master batch comprises, by weight, 35% of PBT resin, 60% of a coated red phosphorus flame retardant, 1% of polytetrafluoroethylene PTFE, 2% of molybdenum trioxide and 22% of organic bentonite DK.
The manufacturing method of the present embodiment includes the steps of:
A. mixing PBT resin, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of the screw extruder at 300 ℃, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 270rpm, and the vacuum pressure is 0.07 Mepa, or opening the vacuum system and simultaneously starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Example three:
the red phosphorus flame-retardant master batch comprises 30 weight parts of PBT resin, 65 weight parts of coated red phosphorus flame retardant, 1 weight part of polytetrafluoroethylene PTFE, 2 weight parts of molybdenum trioxide and 22 weight parts of organic bentonite DK.
The manufacturing method of the present embodiment includes the steps of:
A. mixing PBT resin, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of the screw extruder of 100 ℃, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 260rpm, and the vacuum pressure is 0.07 Mepa, or opening the vacuum system and simultaneously starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Example four:
the red phosphorus flame-retardant master batch comprises 27 weight parts of PET resin, 68 weight parts of coated red phosphorus flame retardant, 1 weight part of polytetrafluoroethylene PTFE, 2 weight parts of molybdenum trioxide and 22 weight parts of organic bentonite DK.
The manufacturing method of the present embodiment includes the steps of:
A. mixing PET resin, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of 220 ℃ by the screw extruder, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 250rpm, and the vacuum pressure is 0.07 Mega, or opening the vacuum system and simultaneously starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Example five:
the red phosphorus flame-retardant master batch comprises 25 weight parts of PET resin, 70 weight parts of coated red phosphorus flame retardant, 1 weight part of polytetrafluoroethylene PTFE, 2 weight parts of molybdenum trioxide and 22 weight parts of organic bentonite DK.
The manufacturing method of the present embodiment includes the steps of:
A. mixing PET resin, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of the screw extruder at 200 ℃, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 230rpm, and the vacuum pressure is 0.08 Mega, or opening the vacuum system and starting a nitrogen protection system simultaneously to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Example six:
the red phosphorus flame-retardant master batch comprises 20 percent of terylene carrier, 75 percent of coating red phosphorus flame retardant, 1 percent of Polytetrafluoroethylene (PTFE), 2 percent of molybdenum trioxide and 22 percent of organic bentonite DK; wherein, the ratio of PBT resin to PET resin in the terylene carrier is 1.5:1 or 1:1 or 2: 1.
The manufacturing method of the present embodiment includes the steps of:
A. mixing a terylene carrier, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of the screw extruder at 120 ℃, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 240rpm, and the vacuum pressure is 0.07 Mepa, or opening the vacuum system and simultaneously starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Example seven:
the red phosphorus flame-retardant master batch comprises 27 weight parts of a terylene carrier, 68 weight parts of a coating red phosphorus flame retardant, 1 weight part of Polytetrafluoroethylene (PTFE), 2 weight parts of molybdenum trioxide and 22 weight parts of organic bentonite DK; wherein, the ratio of PBT resin to PET resin in the terylene carrier is 1.5:1 or 1:1 or 2: 1.
The manufacturing method of the present embodiment includes the steps of:
A. mixing a terylene carrier, a red phosphorus-coated flame retardant, polytetrafluoroethylene PTFE, molybdenum trioxide and organic bentonite DK-2 in proportion, and then adding the mixture into a mixer for fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, carrying out plasticizing, extruding and granulating at the melt extrusion temperature of 180 ℃ by the screw extruder, and carrying out bracing and granulating in water;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the rotating speed of the screw extruder is 260rpm, and the vacuum pressure is 0.07 Mepa, or opening the vacuum system and simultaneously starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
Experimental example:
the master batch obtained by the invention is subjected to performance test and is compared with the existing product, and the obtained data are as follows:
the higher the oxygen index of the flame-retardant master batch is, the better the flame-retardant performance is, the oxygen index of the red phosphorus flame-retardant master batch prepared by the method is more than or equal to 32, and the flame-retardant performance can be greatly improved; in addition, the existing flame-retardant master batch has a dripping phenomenon, and the dripping phenomenon cannot occur due to the addition of the anti-dripping agent, the smoke density of the flame-retardant master batch prepared by the invention is less than or equal to 75, the flame-retardant master batch is good in environmental protection performance, difficult to retard flame, high-temperature resistant and good in flame-retardant performance, and in addition, the addition amount of the flame-retardant master batch in the invention is 3-7%, so that the preparation cost can be reduced, the environmental pollution is avoided, and the performance of the flame-retardant master batch can be improved.
In conclusion, the red phosphorus flame-retardant master batch prepared by the invention has the characteristics of good flame retardance, no dripping, good heat resistance, low smoke density, low cost, convenient use and the like, and meanwhile, when the flame-retardant master batch is used for producing polyester staple fibers and filaments, the production process can be simplified, the production efficiency can be improved, dust flying can be reduced, the environmental pollution can be avoided, the clean production is facilitated, and the red phosphorus flame-retardant master batch is easy to be uniformly mixed with polyester chips, has good dispersion effect and the like, so that the product quality, the performance index of products and the like are further improved. The flame-retardant polyester filament or staple fiber is mainly used for producing flame-retardant polyester filament or staple fiber, and the flame-retardant fiber is used for producing decorative fabrics such as indoor curtains, sofa covers, Simmons beds and carpets of high-rise buildings, hospitals and public places, can also be used for producing conveyer belts for coal mines, tarpaulin canvas and air conditioning fan drum cloth for cotton, hemp and wool spinning factories of textile enterprises, and can also be used for producing plastic products such as television, radio housings and the like in the plastic industry.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The special red phosphorus flame-retardant master batch for the polyester fiber is characterized in that: the red phosphorus flame-retardant master batch comprises, by weight, 10% -90% of a polyester resin carrier, 5% -85% of a red phosphorus flame retardant, 0.1% -2% of an anti-dripping agent, 2% -5% of a smoke suppressant and 2% -5% of montmorillonite.
2. The special red phosphorus flame-retardant master batch for the polyester fiber according to claim 1, which is characterized in that: the red phosphorus flame retardant is one or a mixture of more of coated red phosphorus, microcapsule whiteness coated red phosphorus and red phosphorus; the fineness of the red phosphorus flame retardant is that the average particle size Dav is 1000 meshes-3000 meshes.
3. The special red phosphorus flame-retardant master batch for the polyester fiber according to claim 1, which is characterized in that: the polyester resin carrier is one or a mixture of more of PBT resin, PET resin, EDCP resin and other polyester resins in the form of pellets or powder.
4. The special red phosphorus flame-retardant master batch for the polyester fiber according to claim 1, which is characterized in that: the anti-dripping agent is one or a mixture of Polytetrafluoroethylene (PTFE) and anti-dripping agent FA 500H.
5. The special red phosphorus flame-retardant master batch for the polyester fiber according to claim 1, which is characterized in that: the smoke suppressant is one or a mixture of more of molybdenum trioxide, ammonium octamolybdate and zinc stannate.
6. The special red phosphorus flame-retardant master batch for the polyester fiber according to claim 1, which is characterized in that: the montmorillonite is one or a mixture of more of organic montmorillonite and organic bentonite DK-2.
7. The method for preparing the special red phosphorus flame-retardant master batch for the polyester fiber is characterized by comprising the following steps: the manufacturing method comprises the following steps:
A. mixing a polyester resin carrier, a red phosphorus flame retardant, an anti-dripping agent, a smoke suppressant and montmorillonite in proportion, and then fully mixing to obtain a mixture A;
B. adding the mixture A into a screw extruder, heating the screw extruder to 80-300 ℃ for plasticizing, extruding and granulating, and drawing strips in water for granulating;
C. when the red phosphorus flame-retardant master batch is produced by a screw extruder, opening a vacuum system matched with the extruder, wherein the vacuum pressure is 0.04-0.1 Meppa, or opening the vacuum system and starting a nitrogen protection system to prepare the red phosphorus flame-retardant master batch special for the polyester fiber.
8. The method for preparing the red phosphorus flame-retardant master batch special for the polyester fiber according to claim 7, wherein the method comprises the following steps: and B, mixing the raw materials in the step A by using a mixer or a vector type metering feeding device or a side feeding device.
9. The method for preparing the red phosphorus flame-retardant master batch special for the polyester fiber according to claim 7, wherein the method comprises the following steps: the rotation speed of the screw extruder is 200-400 rpm.
10. The special red phosphorus flame-retardant master batch for the polyester fiber according to claim 1, which is characterized in that: the red phosphorus flame-retardant master batch special for the polyester fiber has the red phosphorus content of 5-85 percent.
CN201911012288.3A 2019-10-23 2019-10-23 Red phosphorus flame-retardant master batch special for polyester fiber and manufacturing method thereof Pending CN110628191A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113088049A (en) * 2021-04-28 2021-07-09 赵彬 Flame-retardant master batch for polyester spinning
CN115652467A (en) * 2022-10-10 2023-01-31 南通强生石墨烯科技有限公司 A kind of heat-resistant and flame-retardant functional fiber and its preparation method

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US5543444A (en) * 1993-08-12 1996-08-06 Rinkagaku Kogyo Co., Ltd. Red phosphorus flame retardant and nonflammable resinous composition
CN101280098A (en) * 2008-05-20 2008-10-08 上海大学 Halogen-free high flame-retardant reinforced polyethylene terephthalate engineering plastics and preparation method thereof
CN101456962A (en) * 2008-12-29 2009-06-17 黄华昌 High-content red phosphorus flame-retardant master batch
CN104845099A (en) * 2014-12-07 2015-08-19 青岛佳亿阳工贸有限公司 Red phosphor masterbatch flame-retardant modified PET/PTT alloy material

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US5543444A (en) * 1993-08-12 1996-08-06 Rinkagaku Kogyo Co., Ltd. Red phosphorus flame retardant and nonflammable resinous composition
CN101280098A (en) * 2008-05-20 2008-10-08 上海大学 Halogen-free high flame-retardant reinforced polyethylene terephthalate engineering plastics and preparation method thereof
CN101456962A (en) * 2008-12-29 2009-06-17 黄华昌 High-content red phosphorus flame-retardant master batch
CN104845099A (en) * 2014-12-07 2015-08-19 青岛佳亿阳工贸有限公司 Red phosphor masterbatch flame-retardant modified PET/PTT alloy material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113088049A (en) * 2021-04-28 2021-07-09 赵彬 Flame-retardant master batch for polyester spinning
CN115652467A (en) * 2022-10-10 2023-01-31 南通强生石墨烯科技有限公司 A kind of heat-resistant and flame-retardant functional fiber and its preparation method

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Application publication date: 20191231