CN106867246A - It is a kind of to be applied to flame-retardant PA 66 mixed component of monofilament and preparation method thereof - Google Patents
It is a kind of to be applied to flame-retardant PA 66 mixed component of monofilament and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
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Abstract
The present invention relates to a kind of flame-retardant PA 66 mixed component and manufacturing process for being applied to monofilament, the flame-retardant PA 66 composite of single fiber forming includes the raw material of following weight portion：89 96 parts of PA66 mixed resins, 38 parts of melamine urea hydrochlorate, 0.5 1.2 parts of synergistic fire retardant, 0.3 0.8 parts of lubricant, 0.1 0.5 parts of coupling agent, 0.1 0.5 parts of antioxidant；The invention also discloses the preparation method of flame-retardant PA 66 compound, the flame-retardant PA 66 composite for preparing in this way, with single fiber forming is good, excellent flame retardancy, the advantages of not foaming, do not separate out, can extensively with the production of fire-retardant Nylon 66 mesh grid tubing product.
Description
【Technical field】
It is more particularly to a kind of for the fire-retardant of single fiber forming the present invention relates to the preparation method field of high molecular fire retardant material
PA66 mixed components and preparation method thereof.
【Background technology】
The heat-resisting of poly- nylon66 fiber, crystallinity are high, and mechanical strength, rigidity are big, and heat resistance and oil resistance are also more excellent, but
The application space of nylon66 fiber is limited because its fire resistance is general, therefore, Buddhist nun is improved by physically or chemically method of modifying
The fire resistance of dragon 66, the application field for widening nylon 66 resin is very necessary.Mainly have engineering plastics field is flame-retardant modified
Bromine system is fire-retardant, nitrogen is fire-retardant, expandable flame retardant, silicon systems are fire-retardant, nm sized hydroxide is fire-retardant, phosphorous flame-retardant, to also have nanometer to cover de-
Soil is fire-retardant,
There is the preparation method of halogen-free flame-retardant PA 66 plastic modified material in the prior art, be for mixed flame-retardants melamine urea
Acid esters (MCA) manufactures flame-retardant PA 66 material, but the material can be only applied to the thick products such as injection-molded item, fail in monofilament and fiber
Successful Application.Its reason is mainly the particle diameter of blending fire retardant agent than larger, the poor compatibility with PA66, causes very big shadow in technique
Ring, and have that part fire retardant is uncoated to be contacted with PA66, easily trigger the degraded of PA66 and foam, some have decomposition precipitate viscous
Attached mould, so as to have influence on final monofilament extrusion molding and drawing and forming, easy fracture of wire, it is impossible to be processed into qualified monofilament.
It is fabricated in situ MCA fire-retardant Nylon 66 resins to also have fire-retardant Nylon 66 material preparation method in the prior art, and category is anti-
Answer type flame-retarded technology.It is this to add polymerisation as a kind of reaction monomers fire retardant, flame-retardant composition is attached to polyamide
Main chain or side chain, with anti-flammability it is long the characteristics of, but chemical technology is complicated, the fire-retardant Nylon 66 of production is poor into silk effect.
Melamine cyanurate (MCA) is a kind of Hydrogenbond thing, nontoxic, tasteless, have soapy feeling, is a kind of efficient resistance
Combustion agent, smoke amount is small, good with PA66 compatibilities, is widely used in the fire-retardant research of polyamide.But because cannot solve
Dispersed problem and nylon66 fiber matrix heating melting influence material mechanical performance of the fire retardant (MCA) in matrix resin are led
The problems such as causing the monofilament of production easily to foam, so being not applied to the flame-retardant PA 66 mixed component of monofilament.
【The content of the invention】
Present invention aim to address the problem of the flame-retardant PA 66 mixed component for being not applied to monofilament in the prior art,
The flame-retardant PA 66 mixed component of a kind of blend method production application in monofilament and preparation method thereof is provided.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of flame-retardant PA 66 composite for single fiber forming, including following weight portion raw material：PA66 mixed resins
89-96 parts, 3-8 parts of melamine urea hydrochlorate, synergistic fire retardant 0.5-1.2 parts, lubricant 0.3-0.8 parts, coupling agent 0.1-0.5
Part, antioxidant 0.1-0.5 parts.
Preferably, described PA66 mixed resins are the mixture of PA66 resins and PA6 resins, the PA66 resins and
The mixed proportion of PA6 resins is 3:7-6:4.
Preferably, the average grain diameter of the melamine urea hydrochlorate is not more than 10 microns.
Preferably, the synergistic fire retardant is oligomeric aryl phosphate ester fire retardant.
Preferably, the lubricant is any one in the double stearic acid amine of ethylene group, pentaerythritol stearate.
Preferably, the coupling agent is vinyl three (β methoxyethoxies) silane.
Preferably, the antioxidant be N, N '-two (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides, N,
In N '-hexamethylene bis (3,5- di-t-butyl -4- hydroxyls hydrocinnamamide) and three [2.4- di-tert-butyl-phenyls] phosphite esters
Any two kinds.
A kind of method of the flame-retardant PA 66 composite for single fiber forming prepared as described in claim 1-7 is any,
It is characterised in that it includes following steps：
S1：The main flame retardant is taken by weight to crush, it is stand-by；
S2：High mixer is added to together with main flame retardant after taking the coupling agent, lubricant by weight and being crushed in S1
Middle heating, mixing, the main flame retardant being surface-treated after mixing；
S3：The S2 surface treated main flame retardants of gained are mixed with the PA66 mixed resins；Again the antioxidant
And the synergistic fire retardant is proportionally added into being stirred in high mixer, obtains compound；
S4：S3 gained compounds are added in double screw extruder from the main spout of double screw extruder；Melting is squeezed
Go out, cooling granulation, obtain the material modified of flame-retardant PA 66 monofilament.
Preferably, the temperature for being heated in the S2 is 70-80 DEG C, and incorporation time is 5-10min.
Preferably, the technological parameter of specific extrusion is in the step S4：One 210-220 DEG C of area's temperature, two area's temperature
225-235 DEG C, three 235-245 DEG C of area's temperature, four 235-250 DEG C of area's temperature, five 235-250 DEG C of area's temperature, six area temperature 230-
245 DEG C, seven 230-245 DEG C of area's temperature, eight 230-250 DEG C of area's temperature, nine 250-260 DEG C of area's temperature, head area temperature 260-265
DEG C, engine speed degree 350-400rpm.
Beneficial effects of the present invention be using PA66 mixed resins and the main flame retardant processed by coupling agent and lubricant,
By mechanical mixture, while formed in the presence of antioxidant, synergistic fire retardant obtaining the flame-retardant PA 66 for being applied to monofilament mixing
Constituent, the single fiber forming that is prepared by the constituent is good, excellent flame retardancy, does not foam, does not separate out.Using described in the invention
Method application and preparation is wide in the flame-retardant PA 66 mixed component process is simple of monofilament, easy to use, scope on probation, easily industrialization
Production.
【Specific embodiment】
Embodiments of the present invention are elaborated below.It is emphasized that what the description below was merely exemplary,
Rather than in order to limit the scope of the present invention and its application.
Embodiment 1
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 resins are
28.8kg, PA6 resin are 67.2kg, amount to 96kg, and main flame retardant melamine urea acid esters (MCA) 3kg, synergistic fire retardant is oligomeric
Aryl phosphate ester is 0.5kg, and double stearic acids amine (EBS) of lubricant ethylene group are 0.3kg, (the β methoxy (ethoxy)s of coupling agent vinyl three
Base) silane is 0.1KG, antioxidant N, N '-two (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides (SEED) is
0.05kg, N, N '-hexamethylene bis (3,5- di-t-butyl -4- hydroxyls hydrocinnamamide) are 0.05kg.
The method that above-mentioned composition prepares flame-retardant PA 66 mixed component includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added to high-speed mixer and mixing together with the melamine urea acid esters after crushing, are heated
To 70 DEG C, the main flame retardant being surface-treated after mixing 5min；
(3) by the PA6 resins composition of the PA66 resins and 67.2kg of surface treated main flame retardant and 28.8kg
PA66 mixed resins mix；Antioxidant and synergistic fire retardant are added in high mixer again, stir 2min, obtain compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation obtains the material modified of flame-retardant PA 66 monofilament；Specifically the technological parameter of extrusion is：One
210 DEG C of area's temperature, two 225 DEG C of area's temperature, three 235 DEG C of area's temperature, four 235 DEG C of area's temperature, five 235 DEG C of area's temperature, six area's temperature
230 DEG C, seven 230 DEG C of area's temperature, eight 230 DEG C of area's temperature, nine 250 DEG C of area's temperature, 260 DEG C of head area temperature, engine speed degree
350rpm。
Embodiment 2
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 resins are
37.8kg, PA6 resin are 56.7kg, amount to 94.5kg, and main flame retardant melamine urea acid esters (MCA) 4kg, synergistic fire retardant is low
Poly- aryl phosphate ester is 0.6kg, and lubricant pentaerythritol stearate (PETS) is 0.5kg, (the β methoxies of coupling agent vinyl three
Ethyoxyl) silane be 0.2KG, antioxidant N, N '-two (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides (SEED)
It is 0.1kg, three [2.4- di-tert-butyl-phenyls] phosphite esters are 0.1kg.
The method that above-mentioned composition prepares flame-retardant PA 66 mixed component includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added to high-speed mixer and mixing together with the melamine urea acid esters after crushing, are heated
To 75 DEG C, the main flame retardant being surface-treated after mixing 6min；
(3) the PA66 mixed bases for constituting the PA6 of surface treated main flame retardant and the PA66 and 56.7kg of 37.8kg
Material mixing；Antioxidant and synergistic fire retardant are added in high mixer again, stir 3min, obtain compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation obtains the material modified of flame-retardant PA 66 monofilament；Specifically the technological parameter of extrusion is：One
215 DEG C of area's temperature, two 230 DEG C of area's temperature, three 240 DEG C of area's temperature, four 240 DEG C of area's temperature, five 240 DEG C of area's temperature, six area's temperature
235 DEG C, seven 235 DEG C of area's temperature, eight 235 DEG C of area's temperature, nine 255 DEG C of area's temperature, 263 DEG C of head area temperature, engine speed degree
360rpm。
Embodiment 3
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 resins are
46.6kg, PA6 resin are 46.6kg, amount to 93.2kg, and main flame retardant melamine urea acid esters (MCA) 5kg, synergistic fire retardant is low
Poly- aryl phosphate ester 0.8kg, lubricant pentaerythritol stearate (PETS) is 0.5kg, (the β methoxy second of coupling agent vinyl three
Epoxide) silane be 0.2KG, antioxidant N, N '-hexamethylene bis (3,5- di-t-butyl -4- hydroxyls hydrocinnamamide) be 0.15kg,
Three [2.4- di-tert-butyl-phenyls] phosphite esters are 0.15kg.
The method that above-mentioned composition prepares flame-retardant PA 66 mixed component includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added to high-speed mixer and mixing together with the melamine urea acid esters after crushing, are heated
To 80 DEG C, the main flame retardant being surface-treated after mixing 7min；
(3) by the PA6 resins composition of the PA66 resins and 46.6kg of surface treated main flame retardant and 46.6kg
PA66 mixed resins mix；Antioxidant and synergistic fire retardant are added in high mixer again, stir 4min, obtain compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation obtains the material modified of flame-retardant PA 66 monofilament；Specifically the technological parameter of extrusion is：One
220 DEG C of area's temperature, two 235 DEG C of area's temperature, three 245 DEG C of area's temperature, four 250 DEG C of area's temperature, five 250 DEG C of area's temperature, six area's temperature
245 DEG C, seven 245 DEG C of area's temperature, eight 250 DEG C of area's temperature, nine 260 DEG C of area's temperature, 265 DEG C of head area temperature, engine speed degree
370rpm。
Embodiment 4
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 resins are
46kg, PA6 resin are 44kg, amount to 90kg, main flame retardant melamine urea acid esters (MCA) 7.3kg, the oligomeric virtue of synergistic fire retardant
Base phosphate 1kg, coupling agent vinyl three (β methoxyethoxies) silane is 0.4KG, the double stearic acid amine of lubricant ethylene group
(EBS) it is 0.8kg, antioxidant is N, and N '-two (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides (SEED) is
0.2kg, three [2.4- di-tert-butyl-phenyls] phosphite esters are 0.3kg.
The method for preparing flame-retardant PA 66 mixed component by above-mentioned composition includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added in high mixer together with the melamine urea acid esters after crushing, are heated to 70
DEG C, the main flame retardant being surface-treated after mixing 8min；
(3) PA66 matrix resin 46kg and PA6 resin mixing for 44Kg will be being added in surface treated main flame retardant
Base-material mixing is closed, then antioxidant and synergistic fire retardant are added in high mixer, stir 3min, obtain compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation obtains the material modified of flame-retardant PA 66 monofilament；Specifically the technological parameter of extrusion is：One
220 DEG C of area's temperature, two 235 DEG C of area's temperature, three 245 DEG C of area's temperature, four 250 DEG C of area's temperature, five 250 DEG C of area's temperature, six area's temperature
245 DEG C, seven 245 DEG C of area's temperature, eight 250 DEG C of area's temperature, nine 260 DEG C of area's temperature, 265 DEG C of head area temperature, engine speed degree
380rpm。
Embodiment 5
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 resins are
53.4kg, PA6 resin are 35.6kg, amount to 89kg, and main flame retardant melamine urea acid esters (MCA) is 8kg, and synergistic fire retardant is low
Poly- aryl phosphate ester is 1.2kg, and coupling agent vinyl three (β methoxyethoxies) silane is 0.5KG, and Lubricate EBS is 0.8kg,
(SEED is 0.2kg, three [the tertiary fourths of 2.4- bis- to antioxidant N, N '-two (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides
Base phenyl] phosphite ester (168) is 0.3kg.
The method for preparing flame-retardant PA 66 mixed component by above-mentioned composition includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added in high mixer together with the melamine urea acid esters after crushing, are heated to 75
DEG C, the main flame retardant being surface-treated after mixing 9min；
(3) in the PA66 matrix resins for 53.4kg being added in surface treated main flame retardant and the PA6 trees of 35.6kg
Fat mixes, then antioxidant and synergistic fire retardant are added in high mixer, stirs 4min, obtains compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation obtains the material modified of flame-retardant PA 66 monofilament；Specifically the technological parameter of extrusion is：One
220 DEG C of area's temperature, two 235 DEG C of area's temperature, three 245 DEG C of area's temperature, four 240 DEG C of area's temperature, five 240 DEG C of area's temperature, six area's temperature
240 DEG C, seven 240 DEG C of area's temperature, eight 240 DEG C of area's temperature, nine 245 DEG C of area's temperature, 260 DEG C of head area temperature, engine speed degree
400rpm。
Embodiment 6
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 resins are
28.5kg, PA6 resin are 66.5kg, amount to 95kg, and main flame retardant melamine urea acid esters (MCA) is 3kg, oligomeric aryl phosphoric acids
Ester is 1.1kg, and coupling agent vinyl three (β methoxyethoxies) silane is 0.1KG, and Lubricate EBS is 0.3kg, antioxidant N,
N- bis- (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides (SEED) 0.2kg, three [2.4- di-tert-butyl-phenyls] are sub-
Phosphate (168) 0.3kg.
The method for preparing flame-retardant PA 66 mixed component by above-mentioned composition includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added in high mixer together with the melamine urea acid esters after crushing, are heated to 80
DEG C, the main flame retardant being surface-treated after mixing 10min；
(3) in the PA66 matrix resins for 28.5kg being added in surface treated main flame retardant and the PA6 trees of 66.5kg
Fat mixes, then antioxidant and synergistic fire retardant are added in high mixer, stirs 4min, obtains compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation；Specifically the technological parameter of extrusion is：One 220 DEG C of area's temperature, two 235 DEG C of area's temperature, 3rd area
245 DEG C of temperature, four 245 DEG C of area's temperature, five 245 DEG C of area's temperature, six 245 DEG C of area's temperature, seven 245 DEG C of area's temperature, eight area's temperature 245
DEG C, nine 250 DEG C of area's temperature, 260 DEG C of head area temperature, engine speed degree 365rpm.
Comparative example 1
A kind of flame-retardant PA 66 mixed component composite for being applied to monofilament, its ratio is：PA66 is 90.5kg,
Main flame retardant melamine urea acid esters (MCA) is 8kg, and oligomeric aryl phosphate ester is 0.5kg, (the β methoxy second of coupling agent vinyl three
Epoxide) silane is 0.2KG, Lubricate EBS is 0.3kg, antioxidant N, N- bis- (2,2,6,6- tetramethyl -4- piperidyls) -1,
3- benzene diamides (SEED) 0.2kg, three [2.4- di-tert-butyl-phenyls] phosphite ester (168) 0.3kg.
The method for preparing flame-retardant PA 66 constituent by above-mentioned composition includes comprising the steps of：
(1) melamine urea acid esters is crushed to no more than 10 microns of particle diameter with high speed disintegrator, it is stand-by；
(2) coupling agent, lubricant are added in high mixer together with the melamine urea acid esters after crushing, are heated to 70
DEG C, after mixing 6min, the main flame retardant being surface-treated；
(3) in the PA66 matrix resins that will add 90.5kg in surface treated main flame retardant, then antioxidant and
Synergistic fire retardant is added in high mixer, stirs 3min, obtains compound；
(4) gained compound is added in double screw extruder from the main spout of double screw extruder, rate of feeding
30rpm；Melting extrusion, cooling granulation；Specifically the technological parameter of extrusion is：One 220 DEG C of area's temperature, two 235 DEG C of area's temperature, 3rd area
245 DEG C of temperature, four 245 DEG C of area's temperature, five 245 DEG C of area's temperature, six 245 DEG C of area's temperature, seven 245 DEG C of area's temperature, eight area's temperature 245
DEG C, nine 250 DEG C of area's temperature, 260 DEG C of head area temperature, engine speed degree 365rpm.
Monofilament test situation,
The trial-production of 0.25mm diameter monofilaments is carried out with the modified pellet obtained by embodiment 1-6 and comparative example 1, monofilament is detected
Pulling force, and weave webmaster and carry out detection fire resistance.Its test situation and fire resistance are as shown in the table：
The monofilament experimental conditions of the embodiment of table 1 and comparative example
From the above results, there is good compatibility, it is ensured that fire retardant and mixed base between each component of the present invention
Material is well mixed, and can guarantee that preparing flame-retardant PA 66 mixed component can not foam normally in wire drawing, with good stretch-proof
The physical and mechanical properties such as intensity, impact strength, heat resistanceheat resistant modification, the product prepared using it also has to be resisted that performance is strong, uses
The characteristics of long lifespan.
Above content is to combine specific/preferred embodiment further description made for the present invention, it is impossible to recognized
Fixed specific implementation of the invention is confined to these explanations.For general technical staff of the technical field of the invention,
Without departing from the inventive concept of the premise, its implementation method that can also have been described to these makes some replacements or modification,
And these are substituted or variant should all be considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of flame-retardant PA 66 composite for single fiber forming, it is characterised in that the raw material including following weight portion：PA66
Mixed resin 89-96 parts, 3-8 parts of melamine urea hydrochlorate, synergistic fire retardant 0.5-1.2 parts, lubricant 0.3-0.8 parts, coupling
Agent 0.1-0.5 parts, antioxidant 0.1-0.5 parts.
2. the flame-retardant PA 66 composite of single fiber forming is used for as claimed in claim 1, it is characterised in that described PA66 is mixed
Close the mixture that base-material is PA66 resins and PA6 resins, the mixed proportion of the PA66 resins and PA6 resins is 3:7-6:4.
3. the flame-retardant PA 66 composite of single fiber forming is used for as claimed in claim 1, it is characterised in that the melamine
The average grain diameter of urea hydrochlorate is not more than 10 microns.
4. the flame-retardant PA 66 composite of single fiber forming is used for as claimed in claim 1, it is characterised in that the cooperative flame retardant
Agent is oligomeric aryl phosphate ester fire retardant.
5. the as claimed in claim 1 flame-retardant PA 66 composite for being used for single fiber forming, it is characterised in that the lubricant is
In the double stearic acid amine of ethylene group, pentaerythritol stearate any one.
6. the as claimed in claim 1 flame-retardant PA 66 composite for being used for single fiber forming, it is characterised in that the coupling agent is
Vinyl three (β methoxyethoxies) silane.
7. the as claimed in claim 1 flame-retardant PA 66 composite for being used for single fiber forming, it is characterised in that the antioxidant is
N, N '-two (2,2,6,6- tetramethyl -4- piperidyls) -1,3- benzene diamides, N, N '-hexamethylene bis (3,5- di-t-butyl -4-
Hydroxyl hydrocinnamamide) and three [2.4- di-tert-butyl-phenyls] phosphite esters in any two kinds.
8. a kind of method of the flame-retardant PA 66 composite for single fiber forming prepared as described in claim 1-7 is any, its
It is characterised by, comprises the following steps：
S1：The main flame retardant is taken by weight to crush, it is stand-by；
S2：Take by weight during the coupling agent, lubricant are added to high mixer together with the main flame retardant after being crushed in S1 and add
Heat, mixing, the main flame retardant being surface-treated after mixing；
S3：The S2 surface treated main flame retardants of gained are mixed with the PA66 mixed resins；Again the antioxidant and institute
State synergistic fire retardant to be proportionally added into being stirred in high mixer, obtain compound；
S4：S3 gained compounds are added in double screw extruder from the main spout of double screw extruder；Melting extrusion, it is cold
But granulate, obtain the material modified of flame-retardant PA 66 monofilament.
9. the method for preparing the flame-retardant PA 66 composite for single fiber forming as claimed in claim 8, it is characterised in that institute
It is 70-80 DEG C to state the temperature heated in S2, and incorporation time is 5-10min.
10. the method for preparing the flame-retardant PA 66 composite for single fiber forming as claimed in claim 8, it is characterised in that
The technological parameter of specific extrusion is in the step S4：One 210-220 DEG C of area's temperature, two 225-235 DEG C of area's temperature, three area's temperature
235-245 DEG C, four 235-250 DEG C of area's temperature, five 235-250 DEG C of area's temperature, six 230-245 DEG C of area's temperature, seven area temperature 230-
245 DEG C, eight 230-250 DEG C of area's temperature, nine 250-260 DEG C of area's temperature, 260-265 DEG C of head area temperature, engine speed degree 350-
400rpm。
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