CN105176077B - A kind of fire-retardant high-modulus nylon material and its preparation method and application - Google Patents

A kind of fire-retardant high-modulus nylon material and its preparation method and application Download PDF

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CN105176077B
CN105176077B CN201510484247.XA CN201510484247A CN105176077B CN 105176077 B CN105176077 B CN 105176077B CN 201510484247 A CN201510484247 A CN 201510484247A CN 105176077 B CN105176077 B CN 105176077B
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fire
polyamide
retardant
nylon material
retardant high
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CN105176077A (en
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田际波
黄志杰
陈佰全
李俊
郑京连
周淑芬
周慧君
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Shanghai Jun'er New Material Co Ltd
Cgn Juner New Materials Co Ltd
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Shanghai Jun'er New Material Co Ltd
Cgn Juner New Materials Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06Polyamides derived from polyamines and polycarboxylic acids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/004Additives being defined by their length
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/08Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers

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Abstract

The invention discloses a kind of fire-retardant high-modulus nylon material and its preparation method and application, material is made up of the raw material of following percentage by weight:Polyamide 61 20.0%;Polyamide 66 15 30.0%;Long Carbon Chain Polyamide 1 30.0%;Heat resistant polyamide 0 30.0%;Strengthen component 50.0 70.0%;Compatilizer 0 5.0%;Fire retardant 1.0 4.0%;Antioxidant 0.2 2.0%;Lubricant 0.5 2.0%.The preparation method of the present invention, simple to operate, controllability is good, using existing equipment, suitable for industrialized production.The fire-retardant high-modulus nylon material of the present invention has excellent rigidity, dimensional stability, low warpage properties and the characteristic such as fire-retardant, is highly suitable for preparing wall switch panel center, substitutes PC+ metal inserts and simple metal material prepares wall switch panel center.

Description

A kind of fire-retardant high-modulus nylon material and its preparation method and application
Technical field
The present invention relates to nylon composite materials field, and in particular to a kind of fire-retardant high-modulus nylon material and preparation method thereof And application.
Background technology
Switch on wall is indispensable electrical equipment in our daily lifes, and its consumption is big, wide using scope, outward appearance and design Various, the diversity and high request of demand propose more requirements to structure design and material property.
Switch on wall sheathing material typically uses fire-retardant, high glaze makrolon (PC) plastic casing+steel frame construction (face Plate center), so there is the feature of high intensity and dimensional stability again with the gorgeous outward appearance of light.But steel frame construction Big, the processed complex with weight, is handled in particular for spray painting, and the influence to environment is big, and manufacturing cost also has significantly Lifting.
At present, domestic and international indivedual producers have prepares panel center using other materials, such as uses PC or PC+GF (glass fibers Dimension) material, but be due to that panel center is related to screw or bayonet socket fixation etc., product, which has larger stress, to be present, and PC materials Expect that proof stress effect is poor, the risk with strain cracking is used for a long time in product.
Aramid materials are a class hemicrystalline heat resistant polymers, with light weight, the high and low water suction of mechanical strength Property, dimensionally stable and the characteristics of good electrical insulation capability, while also have good wear-resisting, oil resistant, stress crack resistant, self-lubricating and The performance such as corrosion-resistant.
Application publication number is CN 1031102676A (Application No. 201110358046.7) Chinese invention patent application A kind of air switch flame-retardant nylon alloy material is disclosed, including:45~65 parts of PA6 resins, 35~55 parts of PA66 resins, master 7~20 parts of fire retardant, 1~2 part of auxiliary flame retardant, 5~30 parts of filler, 1~5 part of lubricant, described main flame retardant are phosphorus The mixture of flame retardant and nitrogenated flame retardant, described auxiliary flame retardant is phosphinates, and described filler is preferred Glass fibre, the one or more of mixing of described lubricant in long-chain acyl amine, long-chain resin acid salt, long chain fatty acids Thing, by the compounding of above-mentioned composition, is prepared with excellent mechanical property, insulating properties, heat resistance and fire resistance The air switch flame-retardant nylon alloy material of excellent combination property.
Publication No. CN 101553536A (Application No. 200780043354.2) Chinese invention patent application is disclosed A kind of flame-retardant polyamide composition, it is made up of following components:20~80 weight % polyamides, 0.1~15 weight % tri- Poly cyanamid cyanurate, 0.1~5 weight % novolac resins, 1~50 weight % reinforcing materials, reinforcing material are selected from glass Fiber and mineral fibres, optionally, selected from following additive:Heat stabilizer, UV stabilizer, antioxidant, lubricant, face Material, colouring agent, plasticizer or shock strength modifying agent;Percentage by weight is represented with the gross weight relative to said composition.It is low to contain Amount novolac resin and the melamine derivative of relatively low content can act synergistically, in terms of anti-flammability and water imbibition Obtain optimum efficiency, said composition be particularly suitable for manufacture be used for electrically or electronically connection area product for example breaker, switch, Connector or the like.
The content of the invention
Because pure PC material stiffness is relatively low, adopts and there are problems that stress cracking after being screwed, and PC+ metal inserts and pure Panel center prepared by metal material, which exists, processes cumbersome, the problem of product is laid particular stress on, and employs the nylon material of low water absorbable, leads to The collective effect of the enhancing component such as component and special fire retardant is crossed, the invention provides a kind of high-modulus, low warpage, size are steady The special fire-retardant high-modulus nylon material of the fixed wall switch panel center with certain fire resistance.
A kind of fire-retardant high-modulus nylon material, is made up of the raw material of following percentage by weight:
The relative viscosity of described polyamide 6 is 2.0-2.45;
The relative viscosity of described polyamide 66 is 2.2-2.4;
Described Long Carbon Chain Polyamide is polyamide 1010;
Described fire retardant is more than one or both of bipentaerythrite, tripentaerythritol, magnesium hydroxide.
It is matrix from low water suction, high intensity, the aramid materials of dimensionally stable, i.e., using poly- in the present invention Acid amides 6, polyamide 66, Long Carbon Chain Polyamide and heat resistant polyamide are compound as matrix, then by using specific fire-retardant Agent, using the fire resistance that material is lifted with the polyalcohol into carbon performance and reduction initiation temperature hydrous oxide, increases simultaneously Plus enhancing component and compatilizer, enhancing component improves the dimensional stability of material and ensure that low warpage properties energy, using polarity Compatilizer, not only increases the boundary strength of glass and PA6 base-materials, while improving under the low temperature of composite, drying regime Impact property, in addition, also added lubricant and thermally-stabilised component (i.e. antioxidant), fire-retardant high-modulus nylon material of the invention In each component between synergy so that its have more excellent performance, with excellent rigidity, dimensional stability, Low warpage properties and the characteristic such as fire-retardant.
In order to obtain more preferable invention effect, below as currently preferred technical scheme:
Described fire-retardant high-modulus nylon material, is made up of the raw material of following percentage by weight:
The relative viscosity of described polyamide 6 is 2.0-2.45;
The relative viscosity of described polyamide 66 is 2.2-2.4;
Described Long Carbon Chain Polyamide is polyamide 1010;
Described fire retardant is more than one or both of bipentaerythrite, tripentaerythritol, magnesium hydroxide.
Described polyamide 6 is that nylon 6 (PA6) is low viscous PA6, and relative viscosity is 2.0-2.45, can select Guangdong The model M12400 of newly meeting Mei Da polyamide fibres limited company production nylon 6 or the model of Taiwan Ji Sheng companies production TP4205 nylon 6, low viscous be mainly of polyamide 6 ensures that material has preferable mobile performance.
Described polyamide 66 is low viscous PA66, and the relative viscosity of described polyamide 66 is 2.2-2.4, relative viscosity For 2.2~2.4, the model EPR24 such as produced from the refreshing horse share of China polyamide 66, the model of U.S. head promise productions 21SPC polyamide 66.
Described Long Carbon Chain Polyamide is polyamide 1010 (i.e. PA1010), and the viscosity number of described polyamide 1010 is more than 99ml/g, the type of model 11 or the PA1010 of 12 types such as produced from Shanghai celluloid company.
Described heat resistant polyamide is that more than one or both of PA6T, PA9T, PA10T percentage by weight is 1% ~20%.Wherein, PA6T, PA9T, PA10T can use commercially available product.
During alkali-free glass of the described enhancing component for special-shaped alkali-free glass fibre, surface by silane coupler processing is fine One or two, further preferably, described enhancing component is special-shaped alkali-free glass fibre, and special-shaped alkali-free glass fibre refers to Shape of cross section is non-circular alkali-free glass fibre, such as cross section for it is oval and, oblate, cocoon shape alkali-free glass fibre, Such as the flat glass (T435TM) of Taishan glass fiber Ltd, the special-shaped glass of OWENS CORNING company can use city Sell product.
Described compatilizer is selected from polypropylene grafted GMA, Research of Grafting Malaic Anhydride Onto Polyethylene, gathered Vinyl Graft GMA, hydrogenated styrene-butadiene-styrene block copolymers grafted methacrylic acid Ethylene oxidic ester (SEBS-g-GMA), polyethylene-propylene-butadiene copolymer grafted maleic anhydride, polyethylene-propylene-fourth two Alkene copolymer graft glycidyl methacrylate, ethylene-octene copolymer grafted maleic anhydride (POE-g-MAH), ternary More than one or both of EP rubbers grafted maleic anhydride (EPDM-g-MAH), it can select commercially available prod.The present invention is used The end carboxylic acid of the compatilizer of polarity, its polar group and nylon reacts, and can improve the toughness of material, while Buddhist nun can be improved The boundary strength of imperial base-material and enhancing component (such as alkali-free glass fiber) so that the mechanical property and surface property of composite are carried It is high.
Described fire retardant is more than one or both of bipentaerythrite, tripentaerythritol, magnesium hydroxide, using tool The polyalcohol and reduction initiation temperature hydrous oxide for having into carbon performance lift the fire resistance of material.
Described antioxidant is selected from stabilizer, hindered phenol stabilizer, the phosphite ester of the functional compounds containing benzophenone It is more than one or both of stabilizer, hindered amine stabilizer.
Described lubricant is selected from stearate, polyester-type lubricant, polar olefin wax, mean molecule quantity more than 600,000 It is more than one or both of super high molecular weight silicone powder.
Between the fire-retardant high-modulus nylon material of the present invention, the combination of each component, each component can collective effect, with excellent Rigidity, dimensional stability, low warpage properties and the characteristic such as fire-retardant, be highly suitable for preparing wall switch panel center, can use In the panel center proprietary material of alternative metals material.
Present invention also offers a kind of preparation method of fire-retardant high-modulus nylon material, with it is simple to operate, suitable for industry The advantage of metaplasia production.
The preparation method of described fire-retardant high-modulus nylon material, including step:
Polyamide 6, polyamide 66, Long Carbon Chain Polyamide, the heat resistant polyamide of selectivity addition, selectivity are added Compatilizer, antioxidant and lubricant are uniformly mixed, and add double screw extruder, then will strengthen component at Section of five machine barrel Spout add double screw extruder, fire retardant is added from the spout of Section seven machine barrel, fully plasticizing, melting, be combined after Extruded, tie rod, cooling, pelletizing and drying, are made fire-retardant high-modulus nylon material.
Draw ratio >=35 of described double screw extruder:1, each section of extruder temperature is 275 DEG C -335 DEG C.
Described fire-retardant high-modulus nylon material, is especially suitable for preparing wall switch panel center, mainly substitutes PC+ gold Category inserts and simple metal material prepare wall switch panel center.
Compared with prior art, the present invention has the advantages that:
Base-material is used as present invention employs the PA of the PA of different viscosities and different melting points mixing, it is ensured that material has preferable Mechanical performance and shaping, processing characteristics;From special special-shaped glass as enhancing component, improve material dimensional stability and It ensure that low warpage properties energy;Using the compatilizer of polarity, the boundary strength of glass and PA6 base-materials is not only increased, is improved simultaneously Impact property under the low temperature of composite, drying regime;Using with the polyalcohol into carbon performance and reduction initiation temperature Hydrous oxide lifts the fire resistance of material;In addition, also added lubricant and thermally-stabilised component, polyamide of the present invention is combined The synergy between each component in material so that it has more excellent performance, with excellent rigidity, dimensionally stable Property, low warpage properties and the characteristic such as fire-retardant.
The preparation method of the special fire-retardant high-modulus nylon material of switch on wall center of the present invention, simple to operate, controllability It is good, using existing equipment, relative to the pouring procedure molding cable guide wheel largely used at present method have it is very big Advantage, processing, the cycle time being molded are shorter, and production efficiency is higher, suitable for industrial mass production.
The special fire-retardant high-modulus nylon material of switch on wall center of the present invention is easily processed into type to prepare switch on wall face Plate center, the panel center of preparation is lightweight, intensity is high, stress crack resistant, recyclable, i.e., the high rigidity with metal has again The toughness and plasticity of plastics, specially can be molded panel center by alternative metals material, not changed both at home and abroad using thermoplastic also Property polyamide material prepare panel center, product design to building electric apparatus industry both domestic and external and selection produce positive work With.
Embodiment
Embodiment 1
Using the raw material of following weight:
PA6 is low viscous(Meida Nylon Co., Ltd., Xinhui, Guangdong produces, model M2000, relative viscosity 2.0) 1.5kg;
PA66 is low viscous(Chinese China Shenma Group Co., Ltd., model:EPR24, relative viscosity 2.4) 23kg;
PA1010(Shanghai celluloid company, model:11 types, with respect to viscosity number:More than 99ml/g) 10kg;
Glass(Taishan glass fiber Ltd, model:T435TM, 11 μm of fibre diameter, chopped length 3.0mm) 60kg;
Compatilizer(Shenyang four-dimension high polymer plastic cement Co., Ltd, POE-g-MAH, model:3F1) 1kg;
Bipentaerythrite(Baoding Guo Xiu chemical industry Co., Ltd high-class product:Bipentaerythrite content >=90%) 2kg;
Magnesium hydroxide(Jinan Taixing Fine Chemicals Co., ltd:Model:HT-206I types) 1kg;
Super high molecular weight silicone powder(Dow Corning Corporation, model DC-500/800, mean molecule quantity more than 600,000) 1kg;
Antioxidant(Rianlon Corporation's model 1098) 0.25kg;
Antioxidant(Rianlon Corporation's model 168) 0.25kg;
Polyamide 6 is low viscous(PA6 is low by viscous 2.0), polyamide 66 it is low viscous(PA66 is low by viscous 2.4), polyamide 1010, antioxidant (1098、168)And lubricant(Super high molecular weight silicone powder)It is uniformly mixed, then double spiral shells is sent into by the feeder of delicate metering Bar extruder, then will strengthen component(Cross section opposite sex glass)Double screw extruder is added from the spout of Section of five machine barrel, By fire retardant(Bipentaerythrite, magnesium hydroxide)Double screw extruder is added from the spout of Section of seven machine barrel, fully plastifies, melt Melt, it is compound after through extrusion, tie rod, water cooling, pelletizing and drying, obtained polyamide compoiste material;Wherein, double screw extruder Draw ratio is 40:1, each section of extruder temperature be:275 ± 5,275 ± 5,275 ± 5,275 ± 5,265 ± 5,255 ± 5,255 ± 5, 255 ± 5,255 ± 5,275 ± 5 DEG C.
Embodiment 2
Using the raw material of following weight:
PA6 is low viscous(Meida Nylon Co., Ltd., Xinhui, Guangdong produces, model M2000, relative viscosity 2.0) 1.5kg;
PA66(Chinese China Shenma Group Co., Ltd., model:EPR24, relative viscosity 2.4) 24kg;
PA1010(Shanghai celluloid company, model:11 types, with respect to viscosity number:More than 99ml/g) 10kg;
Glass(Taishan glass fiber Ltd, model:T435TM, 11 μm of fibre diameter, chopped length 3.0mm) 40kg;
The alkali-free glass fibre that silane coupler is handled is passed through on surface(Chongqing Polycomp International Co., Ltd, model ECS3014B) 20kg;
Bipentaerythrite(Baoding Guo Xiu chemical industry Co., Ltd high-class product:Bipentaerythrite content >=90%) 2kg;
Magnesium hydroxide(Jinan Taixing Fine Chemicals Co., ltd:Model:HT-206I types) 1kg;
Super high molecular weight silicone powder(Dow Corning Corporation, model DC-500/800, mean molecule quantity more than 600,000) 1kg;
Antioxidant(Rianlon Corporation's model 1098) 0.25kg;
Antioxidant(Rianlon Corporation's model 168) 0.25kg;
The preparation method of the special fire-retardant high-modulus nylon material of switch on wall center is double except using the present embodiment raw material The draw ratio of screw extruder is 36:1, each section of extruder temperature be:295 ± 5,295 ± 5,295 ± 5,285 ± 5,285 ± 5, 275 ± 5,265 ± 5,265 ± 5,255 ± 5,275 ± 5 DEG C.Outside, resistance is made in the parameter be the same as Example 1 of remaining preparation method Fire high-modulus nylon material.
Embodiment 3
Using the raw material of following weight:
PA6 is low viscous(Meida Nylon Co., Ltd., Xinhui, Guangdong produces, model M2000, relative viscosity 2.0) 1.5kg;
PA66 is low viscous(Chinese China Shenma Group Co., Ltd., model:EPR24, relative viscosity 2.4) 15kg;
PA1010(Shanghai celluloid company, model:11 types, with respect to viscosity number:More than 99ml/g) 10kg;
PA9T(Kuraray, model:N1000A) 11kg;
Glass(Taishan glass fiber Ltd, model:T435TM, 11 μm of fibre diameter, chopped length 3.0mm) 60kg;
Bipentaerythrite(Baoding Guo Xiu chemical industry Co., Ltd high-class product:Bipentaerythrite content >=90%) 1.1kg;
Super high molecular weight silicone powder(Dow Corning Corporation, model DC-500/800, mean molecule quantity more than 600,000) 1kg;
Antioxidant(Rianlon Corporation's model 1098) 0.2kg;
Antioxidant(Rianlon Corporation's model 168) 0.2kg;
The preparation method of the special fire-retardant high-modulus nylon material of switch on wall center is double except using the present embodiment raw material The draw ratio of screw extruder is 40:1, each section of extruder temperature be:325 ± 5,325 ± 5,325 ± 5,325 ± 5,315 ± 5, 315 ± 5,315 ± 5,315 ± 5,295 ± 5,325 ± 5 DEG C.Outside, resistance is made in the parameter be the same as Example 1 of remaining preparation method Fire high-modulus nylon material.
Embodiment 4
Using the raw material of following weight:
PA6 is low viscous(Meida Nylon Co., Ltd., Xinhui, Guangdong produces, model M2000, relative viscosity 2.0) 1.5kg;
PA66 is low viscous(Chinese China Shenma Group Co., Ltd., model:EPR24, relative viscosity 2.4) 15kg;
PA1010(Shanghai celluloid company, model:11 types, with respect to viscosity number:More than 99ml/g) 10kg;
PA9T(Kuraray, model:N1000A) 10kg;
Glass(Taishan glass fiber Ltd, model:T435TM, 11 μm of fibre diameter, chopped length 3.0mm) 60kg;
Bipentaerythrite(Baoding Guo Xiu chemical industry Co., Ltd high-class product:Bipentaerythrite content >=90%) 1kg;
Magnesium hydroxide(Jinan Taixing Fine Chemicals Co., ltd:Model:HT-206I types) 0.1kg;
Compatilizer(Shenyang four-dimension high polymer plastic cement Co., Ltd, POE-g-MAH, model:3F1) 1kg;
Super high molecular weight silicone powder(Dow Corning Corporation, model DC-500/800, mean molecule quantity more than 600,000) 1kg;
Antioxidant(Rianlon Corporation's model 1098) 0.2kg;
Antioxidant(Rianlon Corporation's model 168) 0.2kg;
The preparation method of the special fire-retardant high-modulus nylon material of switch on wall center is double except using the present embodiment raw material The draw ratio of screw extruder is 40:1, each section of extruder temperature be:325 ± 5,325 ± 5,325 ± 5,325 ± 5,315 ± 5, 315 ± 5,315 ± 5,315 ± 5,295 ± 5,325 ± 5 DEG C.Outside, resistance is made in the parameter be the same as Example 1 of remaining preparation method Fire high-modulus nylon material.
Contrast the makrolon of row 1;Bayer 2805
Contrast the makrolon Bayer 2805+ metal inserts of row 2;
Contrast the metal of row 3;
Comparative example 4
Using the raw material of following weight:
PA6 is low viscous(Meida Nylon Co., Ltd., Xinhui, Guangdong produces, model M2000, relative viscosity 2.0) 11.5kg;
PA66 is low viscous(Chinese China Shenma Group Co., Ltd., model:EPR24, relative viscosity 2.4) 26kg;
Glass(Taishan glass fiber Ltd, model:T435TM, 11 μm of fibre diameter, chopped length 3.0mm) 60kg;
Bipentaerythrite(Baoding Guo Xiu chemical industry Co., Ltd high-class product:Bipentaerythrite content >=90%) 1.1kg;
Super high molecular weight silicone powder(Dow Corning Corporation, model DC-500/800, mean molecule quantity more than 600,000) 1kg;
Antioxidant(Rianlon Corporation's model 1098) 0.2kg;
Antioxidant(Rianlon Corporation's model 168) 0.2kg;
The preparation method of nylon material is except using the present embodiment raw material, and the draw ratio of double screw extruder is 40:1, respectively Section extruder temperature be:325 ± 5,325 ± 5,325 ± 5,325 ± 5,315 ± 5,315 ± 5,315 ± 5,315 ± 5,295 ± 5, 325±5℃.Outside, nylon material is made in the parameter be the same as Example 1 of remaining preparation method.
Performance test is carried out to fire-retardant high-modulus nylon material made from above-described embodiment 1-3 and comparative example 1-4 materials, and And wall switch panel center is made is tested, method of testing and test result refer to table 1.
Table 1
It can be seen that from above-mentioned test data, switch on wall center special-purpose anti-flaming high-modulus nylon material of the present invention has very high Rigidity and excellent stress crack resistance performance, be the optimal alternative materials of switch on wall center.

Claims (6)

1. application of a kind of fire-retardant high-modulus nylon material in wall switch panel center is prepared, it is characterised in that described Fire-retardant high-modulus nylon material is made up of the raw material of following percentage by weight:
The relative viscosity of described polyamide 6 is 2.0-2.45;
The relative viscosity of described polyamide 66 is 2.2-2.4;
Described Long Carbon Chain Polyamide is polyamide 1010;
Described fire retardant is more than one or both of bipentaerythrite, tripentaerythritol, magnesium hydroxide;
Described enhancing component is special-shaped alkali-free glass fibre, and length is 3.0mm;
Described lubricant is the super high molecular weight silicone powder of mean molecule quantity more than 600,000;
The preparation method of described fire-retardant high-modulus nylon material, including step:
By polyamide 6, polyamide 66, Long Carbon Chain Polyamide, selectivity addition heat resistant polyamide, selectivity addition it is compatible Agent, antioxidant and lubricant are uniformly mixed, and add double screw extruder, then will strengthen component from feeding at Section of five machine barrel Material mouth adds double screw extruder, and fire retardant is added from the spout of Section seven machine barrel, fully plasticizing, melting, it is compound after through crowded Go out, tie rod, cooling, pelletizing and drying, fire-retardant high-modulus nylon material is made;
Draw ratio >=35 of described double screw extruder:1.
2. application of the fire-retardant high-modulus nylon material according to claim 1 in wall switch panel center is prepared, its It is characterised by, is made up of the raw material of following percentage by weight:
The relative viscosity of described polyamide 6 is 2.0-2.45;
The relative viscosity of described polyamide 66 is 2.2-2.4;
Described Long Carbon Chain Polyamide is polyamide 1010;
Described fire retardant is more than one or both of bipentaerythrite, tripentaerythritol, magnesium hydroxide.
3. application of the fire-retardant high-modulus nylon material according to claim 1 in wall switch panel center is prepared, its It is characterised by, described heat resistant polyamide is that more than one or both of PA6T, PA9T, PA10T percentage by weight is 1%~20%.
4. application of the fire-retardant high-modulus nylon material according to claim 1 in wall switch panel center is prepared, its It is characterised by, described compatilizer is polypropylene grafted GMA, Research of Grafting Malaic Anhydride Onto Polyethylene, poly- second Alkene graft glycidyl methacrylate, the contracting of hydrogenated styrene-butadiene-styrene block copolymers grafted methacrylic acid Water glyceride, polyethylene-propylene-butadiene copolymer grafted maleic anhydride, polyethylene-propylene-butadiene copolymer grafting first One in base glycidyl acrylate, ethylene-octene copolymer grafted maleic anhydride, grafting maleic anhydride with ethylene propylene terpolymer Plant or two or more.
5. application of the fire-retardant high-modulus nylon material according to claim 1 in wall switch panel center is prepared, its It is characterised by, described antioxidant is steady for stabilizer, hindered phenol stabilizer, the phosphite ester of the functional compounds containing benzophenone Determine more than one or both of agent, hindered amine stabilizer.
6. application of the fire-retardant high-modulus nylon material according to claim 1 in wall switch panel center is prepared, its It is characterised by, each section of extruder temperature of described double screw extruder is 275 DEG C -335 DEG C.
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