CN116751450A - Flame-retardant nylon and preparation method thereof - Google Patents
Flame-retardant nylon and preparation method thereof Download PDFInfo
- Publication number
- CN116751450A CN116751450A CN202310646717.2A CN202310646717A CN116751450A CN 116751450 A CN116751450 A CN 116751450A CN 202310646717 A CN202310646717 A CN 202310646717A CN 116751450 A CN116751450 A CN 116751450A
- Authority
- CN
- China
- Prior art keywords
- parts
- nylon
- mixture
- toughening agent
- flame
- 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.)
- Pending
Links
- 229920001778 nylon Polymers 0.000 title claims abstract description 100
- 239000004677 Nylon Substances 0.000 title claims abstract description 99
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000003063 flame retardant Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims description 21
- 239000012745 toughening agent Substances 0.000 claims abstract description 44
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003365 glass fiber Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 239000000314 lubricant Substances 0.000 claims abstract description 24
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000006750 UV protection Effects 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 54
- 238000003756 stirring Methods 0.000 claims description 45
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 27
- 229920002292 Nylon 6 Polymers 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000000498 cooling water Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001291 vacuum drying Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- NGKNMHFWZMHABQ-UHFFFAOYSA-N 4-chloro-2h-benzotriazole Chemical group ClC1=CC=CC2=NNN=C12 NGKNMHFWZMHABQ-UHFFFAOYSA-N 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 15
- 238000005452 bending Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- 229920006122 polyamide resin Polymers 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 125000003368 amide group Chemical group 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of polyamide resin materials, and discloses a flame-retardant nylon which comprises the following raw materials in parts by weight: 618-25 parts of nylon, 6630-40 parts of nylon, 1-3 parts of toughening agent, 7-15 parts of superfine talcum powder, 10-20 parts of glass fiber, 0.1-0.3 part of ultraviolet resistance agent, 0.2-0.5 part of lubricant and 12-15 parts of melamine cyanurate. According to the invention, the toughening agent is added into the flame-retardant nylon to modify the nylon, so that the condition that mechanical properties such as impact strength and bending strength of the nylon are reduced due to the addition of the flame retardant can be obviously reduced, and the flame-retardant nylon has the advantages of high strength, high heat distortion temperature, low molding shrinkage, reduced fluidity and impact strength after being prepared by matching with superfine talcum powder and glass fiber.
Description
Technical Field
The invention relates to the technical field of polyamide resin materials, in particular to flame-retardant nylon and a preparation method thereof.
Background
Polyamide resin, called PA for short, is a generic term for polymers containing amide groups in the repeat units of the macromolecular backbone. The polyamide has high tensile strength; toughness and impact resistance are excellent; the self-wetting property, the wear resistance and the drug resistance are excellent; has self-extinguishing property. Because nylon PA plastic raw materials have a lot of characteristics, the nylon PA plastic raw materials are widely applied to machinery, instruments, automobile parts, electronics, electric, railways, household appliances, communication, spinning machines, sports and leisure products, oil pipes, oil tanks and some precision engineering products, however, polyamide is also limited in application fields because of the defects of easiness in water absorption, poor dimensional stability, insufficient low-temperature resistance and the like.
PA66, called nylon double six, abbreviated as nylon66, is a semitransparent or opaque milky crystal polymer, and is widely applied to the fields of machinery, electronics, automobiles, chemical industry, textile and the like by virtue of excellent mechanical, heat resistance, wear resistance, self-lubrication, low temperature resistance, flame retardance and other performances. With the increase of economy and the improvement of living standard, PA66 becomes one of the varieties with the largest yield and the widest application in nylon series products.
However, the dissociation energy of the amide group in the nylon structure is low, so that the molecular chain of the nylon material is easy to break in the heating process, and the amide group is a chromophore group, so that the nylon material is easy to degrade under the action of ultraviolet light, and the like, so that the nylon material is easy to age to cause color change under the action of light, heat and the like, therefore, under the use condition of high color requirements, particularly in outdoor use places, the aging performance of the nylon material is required to be improved, and at present, the nylon material can maintain stronger strength and rigidity at higher temperature, but the brittleness of the nylon material is higher, so that the toughness of the nylon material is required to be enhanced.
Therefore, aiming at the problems, we propose a flame retardant nylon and a preparation method thereof.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention can obviously reduce the condition that mechanical properties such as nylon impact strength, bending strength and the like are reduced due to the addition of the flame retardant by adding the toughening agent into the flame-retardant nylon, and simultaneously, the flame-retardant nylon prepared by the flame-retardant nylon has the advantages of high strength, high heat deformation temperature, low molding shrinkage, reduced fluidity and impact strength due to the combination of the superfine talcum powder and the glass fiber, thereby solving the problems that the existing nylon material can maintain stronger strength and rigidity at higher temperature but the brittleness of the material is larger.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the flame-retardant composite nylon comprises the following components of nylon, a toughening agent, superfine talcum powder, glass fiber, an ultraviolet resistant agent, a lubricant and melamine cyanurate.
Wherein, the superfine talcum powder and the glass fiber can increase the stability of the nylon size, reduce the water absorption rate of the nylon and simultaneously can also increase the wear resistance of the nylon.
Preferably, the toughening agent is one of PF/POE toughening agent, PP/POE toughening agent and POE/EPDM toughening agent, wherein PF/POE, PP/POE and POE/EPDM are base polymers in the toughening agent.
Wherein, the addition of the toughening agent can play a role in toughening, and the impact resistance and the cold resistance of the nylon material are improved.
Preferably, the toughening agent is prepared by the following steps:
and (3) melt grafting one matrix resin of PF/POE, PP/POE and POE/EPDM with maleic anhydride under the action of a catalyst by a double screw extruder, wherein the ratio of the matrix resin to the maleic anhydride to the catalyst is 10000:100:5.
Preferably, the ultraviolet resistant agent is selected from chlorobenzotriazole or 2-hydroxy-4-octoxybenzophenone, and the lubricant is selected from any one of oleamide, magnesium stearate or L1000.
The addition of the ultraviolet resistant agent can slow down yellowing of the nylon material, improve damage of ultraviolet rays to the nylon material in the processing process, increase dispersion uniformity among all components of the nylon, reduce agglomeration in the processing process, increase quality of a final finished product, and increase wear resistance of the material.
Preferably, the nylon is selected from nylon6 and nylon 66.
The nylon6 has similar chemical and physical properties to nylon66, however, the melting point is lower, the process temperature range is wide, the impact resistance and the dissolution resistance are better than those of nylon66, the hygroscopicity is stronger, and the nylon66 has stronger hardness and higher tension and flexural modulus and is suitable for the application of which the wear resistance and the heat resistance are important. The nylon composite material produced by mixing nylon6 and nylon66 has the toughness, impact resistance and smooth surface of nylon6, and also has the wear resistance and heat resistance of nylon66, so that the quality of the formed product is better.
Preferably, the flame-retardant nylon comprises, by weight, 618-25 parts of nylon, 6630-40 parts of nylon, 1-3 parts of a toughening agent, 7-15 parts of superfine talcum powder, 10-20 parts of glass fibers, 0.1-0.3 part of an ultraviolet resistant agent, 0.2-0.5 part of a lubricant and 12-15 parts of melamine cyanurate.
Further, the flame-retardant nylon specifically comprises the following components in parts by weight of 610 parts of nylon, 6630 parts of nylon, 1 part of toughening agent, 7 parts of superfine talcum powder, 10 parts of glass fiber, 0.1 part of ultraviolet resistance agent, 0.2 part of lubricant and 12 parts of melamine cyanurate.
The invention also provides a preparation method of the flame-retardant nylon, which comprises the following steps:
step 1: vacuum drying of 10 parts of nylon6 and 30 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 7 parts of superfine talcum powder and 10 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.1 part of ultraviolet resistant agent and 0.2 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 1 part of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture and 12 parts of the melamine cyanurate into a discharging hopper of a granulator, starting the granulator, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooling machine, then to a granulator, connecting a discharge port of the granulator with a vibrating screen, filtering dust and long granules through the vibrating screen, and collecting and storing qualified products into a storage tank.
Wherein the processing temperature of the granulator is 160-200 ℃ and the rotating speed is 200-450r/min.
(III) beneficial effects
Compared with the prior art, the invention provides a flame-retardant nylon and a preparation method thereof, and the flame-retardant nylon comprises the following components
The beneficial effects are that:
the invention can obviously reduce the conditions of the decrease of mechanical properties such as nylon impact strength, bending strength and the like caused by adding the flame retardant by adding the toughening agent into the flame-retardant nylon, and simultaneously, the flame-retardant nylon has the advantages of high strength, high heat deformation temperature, low molding shrinkage, reduced fluidity and impact strength after being prepared by matching with the superfine talcum powder and the glass fiber
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
the flame-retardant nylon comprises the following components in parts by weight: 610 parts of nylon, 6630 parts of nylon, 1 part of toughening agent, 7 parts of superfine talcum powder, 10 parts of glass fiber, 0.1 part of ultraviolet resistant agent, 0.2 part of lubricant and 12 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1: vacuum drying of 10 parts of nylon6 and 30 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 7 parts of superfine talcum powder and 10 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.1 part of ultraviolet resistant agent and 0.2 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 1 part of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture into a discharging hopper of a granulator, starting the granulator, wherein the processing temperature of the granulator is 160-200 ℃ and the rotating speed is 200-450r/min, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooling machine, then enabling the brace to pass through a granulator, enabling a discharge hole of the granulator to be connected with a vibrating screen, enabling the vibrating screen to filter dust and long granules, and collecting and storing qualified products into a storage tank.
Embodiment two:
the flame-retardant nylon comprises the following components in parts by weight: 619 parts of nylon, 6632 parts of nylon, 1.5 parts of toughening agent, 8 parts of superfine talcum powder, 12 parts of glass fiber, 0.1 part of ultraviolet resistance agent, 0.2 part of lubricant and 12 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1:19 parts of nylon6 and 32 parts of nylon66 resin are dried in vacuum: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 8 parts of superfine talcum powder and 12 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.1 part of ultraviolet resistant agent and 0.2 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 1.5 parts of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture and 12 parts of melamine cyanurate into a discharging hopper of a granulator, starting the granulator, extruding a brace through the double-screw extruder at a processing temperature of 160-200 ℃ and a rotating speed of 200-450r/min, enabling the brace to pass through a cooling water tank and an air cooling machine, then to a granulator, connecting a discharge hole of the granulator with a vibrating screen, filtering dust and long granules by the vibrating screen, and collecting and storing qualified products into a storage tank.
Embodiment III:
the flame-retardant nylon comprises the following components in parts by weight: 620 parts of nylon, 6635 parts of nylon, 2 parts of toughening agent, 10 parts of superfine talcum powder, 15 parts of glass fiber, 0.2 part of ultraviolet resistance agent, 0.3 part of lubricant and 13 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1: vacuum drying of 10 parts of nylon6 and 35 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 10 parts of superfine talcum powder and 15 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.2 part of ultraviolet resistant agent and 0.3 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 2 parts of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture and 13 parts of melamine cyanurate into a discharging hopper of a granulator, starting the granulator, extruding a brace through the double-screw extruder at a processing temperature of 160-200 ℃ and a rotating speed of 200-450r/min, enabling the brace to pass through a cooling water tank and an air cooling machine, then to a granulator, connecting a discharge hole of the granulator with a vibrating screen, filtering dust and long granules by the vibrating screen, and collecting and storing qualified products into a storage tank.
Embodiment four:
the flame-retardant nylon comprises the following components in parts by weight: 622 parts of nylon, 6638 parts of nylon, 2.5 parts of toughening agent, 12 parts of superfine talcum powder, 18 parts of glass fiber, 0.25 part of ultraviolet resistance agent, 0.4 part of lubricant and 14 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1:22 parts of nylon6 and 38 parts of nylon66 resin are dried in vacuum: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 12 parts of superfine talcum powder and 18 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.25 part of ultraviolet resistant agent and 0.4 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 2.5 parts of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture and 14 parts of melamine cyanurate into a discharging hopper of a granulator, starting the granulator, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooler, then to a granulator, connecting a discharge hole of the granulator with a vibrating screen, filtering dust and long granules by the vibrating screen, and collecting and storing qualified products into a storage tank.
Fifth embodiment:
the flame-retardant nylon comprises the following components in parts by weight: 625 parts of nylon, 6640 parts of nylon, 3 parts of toughening agent, 15 parts of superfine talcum powder, 20 parts of glass fiber, 0.3 part of ultraviolet resistant agent, 0.5 part of lubricant and 15 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1: vacuum drying of 25 parts of nylon6 and 40 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 15 parts of superfine talcum powder and 20 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.3 part of ultraviolet resistant agent and 0.5 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 3 parts of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture and 15 parts of melamine cyanurate into a discharging hopper of a granulator, starting the granulator, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooler, then to a granulator, connecting a discharge hole of the granulator with a vibrating screen, filtering dust and long granules by the vibrating screen, and collecting and storing qualified products into a storage tank.
Comparative example one:
the difference between the comparative example is that the toughening agent used in example one is a PP/POE toughening agent and that one is a PF/POE toughening agent.
The flame-retardant nylon comprises the following components in parts by weight: 610 parts of nylon, 6630 parts of nylon, 1 part of toughening agent, 7 parts of superfine talcum powder, 10 parts of glass fiber, 0.1 part of ultraviolet resistant agent, 0.2 part of lubricant and 12 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1: vacuum drying of 10 parts of nylon6 and 30 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 7 parts of superfine talcum powder and 10 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.1 part of ultraviolet resistant agent and 0.2 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 1 part of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture into a discharging hopper of a granulator, starting the granulator, wherein the processing temperature of the granulator is 160-200 ℃ and the rotating speed is 200-450r/min, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooling machine, then enabling the brace to pass through a granulator, enabling a discharge hole of the granulator to be connected with a vibrating screen, enabling the vibrating screen to filter dust and long granules, and collecting and storing qualified products into a storage tank.
Comparative example two:
the comparative two comparative examples differ in that the toughening agent used in example one was a PP/POE toughening agent and in that one was a POE/EPDM toughening agent.
The flame-retardant nylon comprises the following components in parts by weight: 610 parts of nylon, 6630 parts of nylon, 1 part of toughening agent, 7 parts of superfine talcum powder, 10 parts of glass fiber, 0.1 part of ultraviolet resistant agent, 0.2 part of lubricant and 12 parts of melamine cyanurate.
The preparation method of the flame-retardant composite nylon comprises the following preparation steps:
step 1: vacuum drying of 10 parts of nylon6 and 30 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 7 parts of superfine talcum powder and 10 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.1 part of ultraviolet resistant agent and 0.2 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 1 part of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture into a discharging hopper of a granulator, starting the granulator, wherein the processing temperature of the granulator is 160-200 ℃ and the rotating speed is 200-450r/min, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooling machine, then enabling the brace to pass through a granulator, enabling a discharge hole of the granulator to be connected with a vibrating screen, enabling the vibrating screen to filter dust and long granules, and collecting and storing qualified products into a storage tank.
The flame retardant nylons prepared in the above examples one and five were subjected to bending and impact strength tests as shown in the following table:
| project | Notched impact strength (kj square meter) | Flexural Strength (Mpa) |
| Example 1 | 97 | 62.7 |
| Example two | 110 | 64.7 |
| Example III | 140 | 64.9 |
| Example IV | 107 | 65.5 |
| Example five | 105 | 65.5 |
| Comparative example one | 93 | 61.8 |
| Comparative example two | 95 | 62.5 |
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The flame-retardant nylon is characterized by comprising the following raw materials in parts by weight: 618-25 parts of nylon, 6630-40 parts of nylon, 1-3 parts of toughening agent, 7-15 parts of superfine talcum powder, 10-20 parts of glass fiber, 0.1-0.3 part of ultraviolet resistance agent, 0.2-0.5 part of lubricant and 12-15 parts of melamine cyanurate.
2. A flame retardant nylon according to claim 1, wherein: the toughening agent is one of PF/POE toughening agent, PP/POE toughening agent and POE/EPDM toughening agent, wherein PF/POE, PP/POE and POE/EPDM are basic polymers in the toughening agent.
3. A flame retardant nylon according to claim 2 wherein the toughening agent is prepared by the steps of:
and (3) melt grafting one matrix resin of PF/POE, PP/POE and POE/EPDM with maleic anhydride under the action of a catalyst by a double screw extruder, wherein the ratio of the matrix resin to the maleic anhydride to the catalyst is 10000:100:5.
4. A flame retardant nylon according to claim 1, wherein: the ultraviolet resistant agent is selected from chlorobenzotriazole or 2-hydroxy-4-octoxybenzophenone, and the lubricant is selected from any one of oleamide, magnesium stearate or L1000.
5. The flame-retardant nylon as defined in claim 1, which is characterized by comprising the following components in parts by weight: 610 parts of nylon, 6630 parts of nylon, 1 part of toughening agent, 7 parts of superfine talcum powder, 10 parts of glass fiber, 0.1 part of ultraviolet resistant agent, 0.2 part of lubricant and 12 parts of melamine cyanurate.
6. The method for preparing the flame retardant nylon according to any one of claims 1 to 5, comprising the following preparation steps:
step 1: vacuum drying of 10 parts of nylon6 and 30 parts of nylon66 resin: drying nylon6 and nylon66 at 80-85C for 6-8h;
step 2: adding 7 parts of superfine talcum powder and 10 parts of glass fiber into the dried nylon resin, and stirring for 30s in a stirring pot to obtain a first mixture;
step 3: adding 0.1 part of ultraviolet resistant agent and 0.2 part of lubricant into the first mixture, and continuously and uniformly stirring to obtain a second mixture;
step 4: the method comprises the steps of carrying out a first treatment on the surface of the Uniformly stirring 1 part of the toughening agent and the second mixture in a stirring pot to obtain a third mixture;
step 5: the aspect ratio was selected to be 40:1, placing the stirred third mixture and 12 parts of the melamine cyanurate into a discharging hopper of a granulator, starting the granulator, extruding a brace through the double-screw extruder, enabling the brace to pass through a cooling water tank and an air cooling machine, then to a granulator, connecting a discharge port of the granulator with a vibrating screen, filtering dust and long granules through the vibrating screen, and collecting and storing qualified products into a storage tank.
7. The method for preparing the flame retardant nylon according to claim 6, wherein: the processing temperature of the granulator is 160-200 ℃ and the rotating speed is 200-450r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310646717.2A CN116751450A (en) | 2023-06-02 | 2023-06-02 | Flame-retardant nylon and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310646717.2A CN116751450A (en) | 2023-06-02 | 2023-06-02 | Flame-retardant nylon and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116751450A true CN116751450A (en) | 2023-09-15 |
Family
ID=87956405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310646717.2A Pending CN116751450A (en) | 2023-06-02 | 2023-06-02 | Flame-retardant nylon and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116751450A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944534A (en) * | 2006-10-30 | 2007-04-11 | 东北林业大学 | Glass fibre reingorced no-halogen flame-retardant nylon 66 and its preparing method |
| CN102167904A (en) * | 2011-04-29 | 2011-08-31 | 东莞市意普万工程塑料有限公司 | Halogen-free flame-retardant nano reinforced nylon composite material and preparation method thereof |
| CN103450672A (en) * | 2013-08-28 | 2013-12-18 | 宁波伊德尔新材料有限公司 | Halogen-free flame retardant glass fiber reinforced nylon 6 particle and preparation method thereof |
| CN105062062A (en) * | 2015-09-16 | 2015-11-18 | 东莞市沃府工程塑料科技有限公司 | Halogen-free flame-retardant nylon composite material and preparation method thereof |
| CN107446349A (en) * | 2017-07-05 | 2017-12-08 | 惠州市华聚塑化科技有限公司 | A kind of ultraviolet aging resistance fire-retardant nylon composite and preparation method thereof |
| CN108822538A (en) * | 2018-06-28 | 2018-11-16 | 厦门加略塑胶科技有限公司 | A kind of fire-retardant composite nylon and preparation method thereof |
-
2023
- 2023-06-02 CN CN202310646717.2A patent/CN116751450A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944534A (en) * | 2006-10-30 | 2007-04-11 | 东北林业大学 | Glass fibre reingorced no-halogen flame-retardant nylon 66 and its preparing method |
| CN102167904A (en) * | 2011-04-29 | 2011-08-31 | 东莞市意普万工程塑料有限公司 | Halogen-free flame-retardant nano reinforced nylon composite material and preparation method thereof |
| CN103450672A (en) * | 2013-08-28 | 2013-12-18 | 宁波伊德尔新材料有限公司 | Halogen-free flame retardant glass fiber reinforced nylon 6 particle and preparation method thereof |
| CN105062062A (en) * | 2015-09-16 | 2015-11-18 | 东莞市沃府工程塑料科技有限公司 | Halogen-free flame-retardant nylon composite material and preparation method thereof |
| CN107446349A (en) * | 2017-07-05 | 2017-12-08 | 惠州市华聚塑化科技有限公司 | A kind of ultraviolet aging resistance fire-retardant nylon composite and preparation method thereof |
| CN108822538A (en) * | 2018-06-28 | 2018-11-16 | 厦门加略塑胶科技有限公司 | A kind of fire-retardant composite nylon and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101195707B (en) | Glass fiber-reinforced nylon 6-polypropylene alloy material | |
| WO2017193510A1 (en) | Application of polyamide 5x as flame-retardant material | |
| CN100549095C (en) | Polyamide resin of a kind of halogen-free phosphor-free environmental protection inflaming retarding and preparation method thereof | |
| CN101875738A (en) | Flame-retardant glass fiber reinforced polypropylene composite material for manufacturing coil frame and preparation method thereof | |
| CN111763383B (en) | Good-touch glass fiber reinforced polypropylene composite and preparation method thereof | |
| CN108504091B (en) | Nylon 66 and semi-aromatic nylon composite material and preparation method thereof | |
| CN102558844A (en) | Glass fiber reinforced nylon 6-polyethylene terephthalate alloy material and preparation method thereof | |
| CN111635629A (en) | Low-water-absorption glass fiber reinforced halogen-free flame-retardant polyamide material and preparation method thereof | |
| CN110938303A (en) | Special cold-resistant reinforced nylon material for ice and snow areas and preparation method thereof | |
| CN111978641A (en) | High-modulus, high-fluidity and high-impact-resistance glass fiber reinforced polypropylene composite material and preparation method thereof | |
| JP7345553B2 (en) | Polycarbonate fibers and fiber structures and resin composites | |
| CN109943062A (en) | A kind of preparation method of high-strength temperature-resistant roving glass fiber nylon composite materials | |
| CN116751450A (en) | Flame-retardant nylon and preparation method thereof | |
| WO2021248819A1 (en) | Flame-retardant nylon composition and preparation method therefor | |
| CN112375297A (en) | Glass fiber reinforced PP/PA66 composite material for water chamber of new energy automobile and preparation method thereof | |
| CN111117237A (en) | Polyamide composite material and preparation method thereof | |
| CN108822538B (en) | Flame-retardant composite nylon and preparation method thereof | |
| CN116574373A (en) | Composition reinforced bio-based PA56/PA66 composite material and preparation method thereof | |
| CN114835894B (en) | Transparent polyamide, composition containing same and preparation method thereof | |
| CN107903508B (en) | Aramid fiber reinforced polypropylene micro-foaming composite material and preparation method thereof | |
| CN109796560B (en) | Lampshade material of energy-saving LED lamp and preparation method thereof | |
| JP7164861B2 (en) | Polyamide resin composition | |
| CN106810856A (en) | Bellows material and preparation method thereof | |
| CN110318121B (en) | PET/PBT blending modified fiber | |
| CN111471295B (en) | Impact-resistant composition and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |