CN104693793A - Flame-retardant reinforced nylon composite material and preparation method thereof - Google Patents
Flame-retardant reinforced nylon composite material and preparation method thereof Download PDFInfo
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- CN104693793A CN104693793A CN201410779518.XA CN201410779518A CN104693793A CN 104693793 A CN104693793 A CN 104693793A CN 201410779518 A CN201410779518 A CN 201410779518A CN 104693793 A CN104693793 A CN 104693793A
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- flame
- retardant
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- reinforced nylon
- matrix material
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 61
- 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 48
- 239000004677 Nylon Substances 0.000 title claims abstract description 26
- 229920001778 nylon Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000002131 composite material Substances 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 20
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003607 modifier Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 27
- 238000001035 drying Methods 0.000 claims description 11
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 10
- 239000003112 inhibitor Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000007822 coupling agent Substances 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- -1 pentaerythritol ester Chemical class 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 claims description 2
- 229920002943 EPDM rubber Polymers 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 229920006351 engineering plastic Polymers 0.000 abstract description 8
- 239000005995 Aluminium silicate Substances 0.000 abstract description 3
- 235000012211 aluminium silicate Nutrition 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 235000006708 antioxidants Nutrition 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 230000007613 environmental effect Effects 0.000 description 7
- 239000002990 reinforced plastic Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229920003656 Daiamid® Polymers 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LXWPJAGZRHTAOO-UHFFFAOYSA-N [Sb].[Br] Chemical compound [Sb].[Br] LXWPJAGZRHTAOO-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229940058905 antimony compound for treatment of leishmaniasis and trypanosomiasis Drugs 0.000 description 1
- 150000001463 antimony compounds Chemical class 0.000 description 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a flame-retardant reinforced nylon composite material and a preparation method thereof. The flame-retardant reinforced nylon composite material comprises the following components in percentage by weight: 30-45% of PA6630, 10-15% of brominated flame retardant, 12-16% of compound flame-retardant synergist, 3-5% of toughened modifier, 3-8% of compatibilizer, 0.2-0.6% of antioxidant, 20-40% of glass fiber, and 0.3-1% of processing aid; and the compound flame-retardant synergist is a compound of zinc borate substances and nanometer kaolin. The environment-friendly flame-retardant reinforced PA66 engineering plastic is prepared by compounding a current marketing common brominated flame retardant, zinc borate and kaolin, the flame-retardant property can meet the no firing requirements of UL 94 V-0 (3.2mm) and 850 DEG C glowing wire contact materials, the cost is lower compared with the halogen-free reinforced PA66 engineering plastic, the environment-friendly flame-retardant reinforced PA66 engineering plastic can be applied to plastic parts of a PTC heating body support, an igniter, a capacitor, a connecting plug and the like.
Description
[technical field]
The present invention relates to engineering plastic modification technical field, particularly relate to a kind of flame-retardant reinforced nylon matrix material and preparation method thereof.
[background technology]
Polymeric amide (PA) 66 is able to widespread use with the mechanical property of its excellence and moulding processability in the field such as automobile, electronic apparatus.But cause fire because electric equipment products in use easily burning occurs, therefore, while requiring material to have good mechanical property, also require that material has good flame retardant properties.In addition, along with the enforcement of Australia standard on the 30th October in 2010, require that non-metallic material cross 850 DEG C of glowing filament tests, the countries such as increasing America and Europe also put into effect glowing filament relevant criterion in succession.PA66 modified system glass fibre (GF) conventional in the market/bromine system fire-retardant/although antimonous oxide compound system can well meet UL94V-0 flame-retardancy requirements, but its glowing filament ignition temperature is general lower, therefore exploitation can be used for meeting low-cost environmental-protecting flame-retardant PA 66 engineering plastics not on fire in UL94V0 level and 850 DEG C of glowing filament contact material 30s, becomes the urgent need that electronic apparatus enterprise is particularly engaged in household electrical appliance plastic component injection moulding enterprise.
China Patent Publication No. is that the patent application of CN102604377A discloses a kind of flame-proofed thermoplastic daiamid composition, its component and weight percentage composed as follows: (1) thermoplastic polyamide resin 30-90%; (2) bromide fire retardant 5-40%; (3) fire retarding synergist 0.5-15%; (4) strongthener 0-50%.This patent application by by brominated Polystyrene, zinc borate, organic silicon fibre retardant is composite obtains a kind of flame-proofed thermoplastic daiamid composition, the highest by 930 DEG C of glowing filaments tests.This patent application organic silicon fibre retardant instead of antimony compounds, the a large amount of gases produced when decreasing bromine antimony synergy to a certain extent, meet the requirement of environmental protection, but on market some to common are machine silicon fire retardant price all general higher, this makes one-tenth this locality of this system high.
[summary of the invention]
The technical problem to be solved in the present invention is to provide that a kind of cost is low, good flame retardation effect, and 850 DEG C of glowing filaments are nonflammable, the flame-retardant reinforced nylon matrix material of environmental protection and preparation method thereof.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, a kind of flame-retardant reinforced nylon matrix material, composed of the following components by mass percentage:
Compositional flame-retardant synergist is the compound of zinc borate class material and nano kaoline.
Above-described flame-retardant reinforced nylon matrix material, the limiting viscosity of PA66 is 2.6.
Above-described flame-retardant reinforced nylon matrix material, bromide fire retardant is one or more in brominated Polystyrene, TDE and hexabromocyclododecane.
Above-described flame-retardant reinforced nylon matrix material, zinc borate class material is anhydrous zinc borate; The main component of nano kaoline is hydrated aluminium silicate.
Above-described flame-retardant reinforced nylon matrix material, plasticized modifier is maleic anhydride graft POE and/or maleic anhydride graft EPDM.
Above-described flame-retardant reinforced nylon matrix material, oxidation inhibitor is mixed by primary antioxidant four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and auxiliary antioxidant tricresyl phosphite (24-di-tert-butyl-phenyl) ester.
Above-described flame-retardant reinforced nylon matrix material, glass fibre is that alkali-free is long fine, and diameter is 9 ~ 14 μm.
Above-described flame-retardant reinforced nylon matrix material, described processing aid is silicone powder and/or TAF, and coupling agent is Silane coupling agent KH550.
A production method for above-mentioned flame-retardant reinforced nylon matrix material, comprises the following steps:
(1) each component is taken by above-mentioned mass percentage, and PA66 more than the 6 hours time of drying at 80 ~ 100 DEG C of temperature that will take, other component is drying more than 2 hours at 60 ~ 80 DEG C of temperature;
(2) dried PA66, bromide fire retardant, compositional flame-retardant synergist, plasticized modifier, compatilizer, oxidation inhibitor and processing aid are mixed in high-speed mixer, churning time is 10 ~ 15 minutes;
(3) material after step (2) being mixed joins in the hopper of twin screw extruder, is added by the side spout of glass fibre from twin screw extruder, extrudes, cools through high-temperature extruder melt blending, air-dry, granulation;
Wherein, the temperature of twin screw extruder is set to: a district: 200 ~ 220 DEG C; 2nd district: 210 ~ 230 DEG C; 3rd district: 220 ~ 240 DEG C; 4th district: 230 ~ 250 DEG C; 5th district: 235 ~ 255 DEG C; 6th district: 230 ~ 240 DEG C; 7th district: 230 ~ 240 DEG C; 8th district: 230 ~ 240 DEG C; Head temperature: 230 ~ 250 DEG C; Screw speed controls at 200 ~ 350r/min, extrudes rear cooling, pelletizing, drying.
The present invention adopts the composite obtained environmental protection flame retardant reinforced plastic PA66 engineering plastics of current commercially available common bromide fire retardant, zinc borate and kaolin, its flame retardant properties meets requirement not on fire in UL 94V – 0 grade (3.2mm) and 850 DEG C of glowing filament contact material 30s simultaneously, and cost is lower than halogen-free flameproof reinforced plastic PA66 engineering plastics, can be applied to the plastic component such as PTC heater support bracket, lighter for ignition, electric capacity and connection plug.
[embodiment]
Below by embodiment, the present invention is further detailed explanation.
Flame-retardant reinforced nylon matrix material of the present invention, composed of the following components by mass percentage:
Wherein PA66 resin grade is PA66-21SPC, the first promise product of the U.S., limiting viscosity 2.6dL/g;
Toughner is the maleic anhydride graft POE that Dongguan Calvin company produces, trade mark KA-102
Bromide fire retardant be brominated Polystyrene, TDE one or both.
Compositional flame-retardant synergist is the anhydrous zinc borate that star shellfish reaches the production of (Beijing) chemical materials company limited, and the trade mark: ST-FS-2300FB and the U.S. produce nano kaoline HG-90.
Oxidation inhibitor can be mixed by primary antioxidant four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and auxiliary antioxidant tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester.
The long fine EDR13-2000-988A of the alkali-free of Zhejiang megalith company thought by glass fibre, and diameter is: 13 μm; Processing aid is silicone powder and/or TAF, and coupling agent is Silane coupling agent KH550.
The preparation method of flame-retardant reinforced nylon matrix material of the present invention, comprises the following steps:
Step one, above-mentioned mass percentage take each component, and PA66 resin more than the 6 hours time of drying at 80 ~ 120 DEG C of temperature that will take, other component is drying more than 2 hours at 60 ~ 80 DEG C of temperature.
Step 2, dried PA66 resin, bromide fire retardant, compositional flame-retardant synergist, toughner, oxidation inhibitor, processing aid are mixed in high-speed mixer, stirring required time is 10 ~ 15min.
Step 3, step 2 is mixed after material join in the hopper of twin screw extruder, the side spout of glass fibre from twin screw extruder is added, extrudes through high-temperature extruder melt blending, cools, air-dry, granulation.
Wherein, the temperature of twin screw extruder is set to: a district: 200 ~ 220 DEG C; 2nd district: 210 ~ 230 DEG C; 3rd district: 220 ~ 240 DEG C; 4th district: 230 ~ 250 DEG C; 5th district: 235 ~ 255 DEG C; 6th district: 230 ~ 240 DEG C; 7th district: 230 ~ 240 DEG C; 8th district: 230 ~ 240 DEG C; Head temperature: 230 ~ 250 DEG C; Screw speed controls at 200 ~ 350r/min.
Below in conjunction with embodiment, one detailed elaboration is done to the present invention.
Embodiment 1
By PA66 resin more than 6 hours time of drying at 80 ~ 120 DEG C of temperature, other component at 60 ~ 80 DEG C of temperature dry more than 2 hours.Take PA66 resin 43.2kg, TDE 10kg, anhydrous zinc borate 5kg, nano kaoline 8kg, toughner 3kg, oxidation inhibitor 0.2kg (wherein primary antioxidant 10100.1kg, auxiliary anti-oxidant 1680.1kg), lubricant TAF 0.5kg, coupling agent KH5500.1Kg; Then in high-speed mixer, 10min is stirred.Again the material after mixing is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 230 DEG C; 2nd district: 235 DEG C; 3rd district: 240 DEG C; 4th district: 250 DEG C; 5th district: 260 DEG C; 6th district: 255 DEG C; 7th district: 250 DEG C; 8th district: 245 DEG C; Head temperature: 240 DEG C, screw speed 350r/min, the spout of 30kg glass fibre from twin screw stage casing is added, extrudes through melt blending, water-cooled, air-dry, pelletizing, oven dry, be finally packaged into bag and a kind of low cost 850 DEG C of glowing filament nonflammable environmental protection flame retardant reinforced plastic PA66 matrix materials.
Embodiment 2
By PA66 resin more than 6 hours time of drying at 80 ~ 120 DEG C of temperature, other component at 60 ~ 80 DEG C of temperature dry more than 2 hours.Take PA66 resin 42.2kg, TDE 12kg, anhydrous zinc borate 5kg, nano kaoline 7kg, toughner 3kg, oxidation inhibitor 0.2kg (wherein primary antioxidant AT10100.1kg, auxiliary anti-oxidant AT1680.1kg), lubricant TAF 0.5kg, coupling agent KH5500.1Kg; Then in high-speed mixer, 10min is stirred.Again the material after mixing is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 230 DEG C; 2nd district: 235 DEG C; 3rd district: 240 DEG C; 4th district: 250 DEG C; 5th district: 260 DEG C; 6th district: 255 DEG C; 7th district: 250 DEG C; 8th district: 245 DEG C; Head temperature: 240 DEG C, screw speed 350r/min, the spout of 30kg glass fibre from twin screw stage casing is added, extrudes through melt blending, water-cooled, air-dry, pelletizing, oven dry, be finally packaged into bag and a kind of low cost 850 DEG C of glowing filament nonflammable environmental protection flame retardant reinforced plastic PA66 matrix materials.
Embodiment 3
By PA66 resin more than 6 hours time of drying at 80 ~ 120 DEG C of temperature, other component at 60 ~ 80 DEG C of temperature dry more than 2 hours.Take PA66 resin 44.2kg, TDE 12kg, anhydrous zinc borate 8kg, nano kaoline 7kg, toughner 3kg, oxidation inhibitor 0.2kg (wherein primary antioxidant 10100.1kg, auxiliary anti-oxidant 1680.1kg), lubricant TAF 0.5kg, coupling agent KH5500.1Kg; Then in high-speed mixer, 10min is stirred.Again the material after mixing is joined in the hopper of twin screw extruder, control each section of temperature and exist: a district: 230 DEG C; 2nd district: 235 DEG C; 3rd district: 240 DEG C; 4th district: 250 DEG C; 5th district: 260 DEG C; 6th district: 255 DEG C; 7th district: 250 DEG C; 8th district: 245 DEG C; Head temperature: 240 DEG C, screw speed 350r/min, the spout of 25kg glass fibre from twin screw stage casing is added, extrudes through melt blending, water-cooled, air-dry, pelletizing, oven dry, be finally packaged into bag and a kind of low cost 850 DEG C of glowing filament nonflammable environmental protection flame retardant reinforced plastic PA66 matrix materials.
The environmental protection flame retardant reinforced plastic PA66 matrix material of embodiment 1 to 3 is injection molded into standard test specimen, and test performance is as shown in the table:
It is fire-retardant that the employing of the present invention's above embodiment bromide fire retardant, zinc borate and nano kaoline compound flame retardant compound carry out PA66, zinc borate self is utilized to become carbon flame-proof effect and the cooperative flame retardant with bromide fire retardant on the one hand, utilize in nano kaoline combustion processes on the other hand, a kind of high performance charing-silicate sturcture is defined at material surface, heat insulation and centrifugation is played to non-combustible material below, and slow down the diffusion of decomposing the volatilizable product produced, reduce the mass loss rate of material, serve fire retardation.Simultaneously due to the huge advantage of nano kaoline in price, also can reduce product cost, it is low that the fire-retardant reinforced plastic PA66 engineering plastics therefore prepared have cost, performance not on fire in 850 DEG C of glowing filament contact material 30s.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (9)
1. a flame-retardant reinforced nylon matrix material, is characterized in that, composed of the following components by mass percentage:
Compositional flame-retardant synergist is the compound of zinc borate class material and nano kaoline.
2. flame-retardant reinforced nylon matrix material according to claim 1, is characterized in that, the limiting viscosity of PA66 is 2.6.
3. flame-retardant reinforced nylon matrix material according to claim 1, is characterized in that, bromide fire retardant is one or more in brominated Polystyrene, TDE and hexabromocyclododecane.
4. flame-retardant reinforced nylon matrix material according to claim 1, is characterized in that, zinc borate class material is anhydrous zinc borate; The main component of nano kaoline is hydrated aluminium silicate.
5. flame-retardant reinforced nylon matrix material according to claim 1, is characterized in that, toughner is maleic anhydride graft POE and/or maleic anhydride graft EPDM.
6. flame-retardant reinforced nylon matrix material according to claim 1, it is characterized in that, oxidation inhibitor is mixed by primary antioxidant four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and auxiliary antioxidant tricresyl phosphite (24-di-tert-butyl-phenyl) ester.
7. flame-retardant reinforced nylon matrix material according to claim 1, is characterized in that, glass fibre is that alkali-free is long fine, and diameter is 9 ~ 14 μm.
8. flame-retardant reinforced nylon matrix material according to claim 1, is characterized in that, described processing aid is silicone powder and/or TAF, and coupling agent is Silane coupling agent KH550.
9. a production method for flame-retardant reinforced nylon matrix material described in claim 1, is characterized in that, comprise the following steps:
(1) each component is taken by mass percentage according to claim 1, and PA66 more than the 6 hours time of drying at 80 ~ 100 DEG C of temperature that will take, other component is drying more than 2 hours at 60 ~ 80 DEG C of temperature;
(2) dried PA66, bromide fire retardant, compositional flame-retardant synergist, plasticized modifier, compatilizer, oxidation inhibitor and processing aid are mixed in high-speed mixer, churning time is 10 ~ 15 minutes;
(3) material after step (2) being mixed joins in the hopper of twin screw extruder, is added by the side spout of glass fibre from twin screw extruder, extrudes, cools through high-temperature extruder melt blending, air-dry, granulation;
Wherein, the temperature of twin screw extruder is set to: a district: 200 ~ 220 DEG C; 2nd district: 210 ~ 230 DEG C; 3rd district: 220 ~ 240 DEG C; 4th district: 230 ~ 250 DEG C; 5th district: 235 ~ 255 DEG C; 6th district: 230 ~ 240 DEG C; 7th district: 230 ~ 240 DEG C; 8th district: 230 ~ 240 DEG C; Head temperature: 230 ~ 250 DEG C; Screw speed controls at 200 ~ 350r/min, extrudes rear cooling, pelletizing, drying.
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| CN105400194A (en) * | 2015-12-22 | 2016-03-16 | 合肥仲农生物科技有限公司 | High-strength wear-resistant composite material |
| CN106633840A (en) * | 2016-12-28 | 2017-05-10 | 徐州腾飞工程塑料有限公司 | Nylon composite material which is low in pungent smell and is used for automotive upholstery, and preparation method thereof |
| CN109503969A (en) * | 2018-11-27 | 2019-03-22 | 江苏万纳普新材料科技有限公司 | A kind of nylon direct injection molding efficient enhanced flame-retarded heat-conducting shading multifunctional mother granules and preparation method thereof |
| CN113265141A (en) * | 2020-03-08 | 2021-08-17 | 广东奇德新材料股份有限公司 | Antimony-free flame-retardant reinforced poly (p-phenylene terephthalamide) composite material, preparation method and application |
| CN114437536A (en) * | 2020-11-03 | 2022-05-06 | 苏州荣昌复合材料有限公司 | PA composite material |
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| CN105400194A (en) * | 2015-12-22 | 2016-03-16 | 合肥仲农生物科技有限公司 | High-strength wear-resistant composite material |
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| CN114437536A (en) * | 2020-11-03 | 2022-05-06 | 苏州荣昌复合材料有限公司 | PA composite material |
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