CN104130570A - Polyamide composite material, preparation method thereof, and application thereof to prepare automobile door handles - Google Patents
Polyamide composite material, preparation method thereof, and application thereof to prepare automobile door handles Download PDFInfo
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- CN104130570A CN104130570A CN201410308807.1A CN201410308807A CN104130570A CN 104130570 A CN104130570 A CN 104130570A CN 201410308807 A CN201410308807 A CN 201410308807A CN 104130570 A CN104130570 A CN 104130570A
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- 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
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- 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
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- 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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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Abstract
A disclosed polyamide composite material is prepared from the following raw materials in percent by weight: 50-70% of nylon 6, 20-40% of a fibrous filling material, 0-4% of montmorillonite, 0-1% of epoxy resin, 0.01-2% of a heat stabilizer, 0.1-2% of a processing auxiliary agent, and 0-2% of a pigment. Nylon 6 is branched nylon 6 with the relative viscosity of 1.2-1.4. The polyamide composite material is applicable to gas-assisted molding of automobile door handles, the material solves the problems that injection is not full and the appearance luster is reduced when the composite material is applied to gas-assisted molding, and by improving the fluidity, the injection molding performance of the polyamide composite material is improved, and the appearance quality of the product is improved. The invention also discloses a preparation method for the polyamide composite material. The preparation method is realized by employing a double screw extruder, is easy to operate and execute, is easy for industrialized large-scale production, and has wide application prospect.
Description
Technical field
The present invention relates to polyamide compoiste material field, be specifically related to a kind of polyamide compoiste material and preparation method thereof and the application in preparing automobile door handle.
Background technology
The advantages such as plastic part has that design space is large, tooling cost is low, highly polished, rust protection, weight significantly reduces compared with metal simultaneously, in Hyundai Motor industry, use in a large number, be the important directions of energy-saving and emission-reduction.Development along with injection molding technology, various Novel injection molding technology are ripe gradually, wherein gas assisted molding utilization is more and more general, this technology can further reduce the weight of plastic part under the prerequisite that guarantees product service requirements, in some automotive plastic workpieces, extensively adopt, first air-auxiliary injection forming process is that the material of owing that carries out resin in die cavity is injected, then in the middle of the nitrogen importing molten materials through high pressure compressed, gas flows to low pressure and the high-temperature area of goods along the minimum direction of resistance.When gas flows in goods, it empties heavy wall cross section by displacement molten materials.The rest part of the material filling goods that these cement out.After filling process completes, by gas, continue to provide dwell pressure, the contraction of ejecting product or warpage issues are down to minimum.It has, and injection pressure is low, goods buckling deformation is little and be easy to process the advantages such as goods that wall thickness variation is larger.
Polymeric amide is commonly called as nylon, it is the line style thermoplastic polymer that contains amide group repeated structural unit on molecular backbone chain, there is tough wear-resisting, antifatigue, oil resistant, the good characteristic such as nontoxic, it is the irreplaceable high performance engineering plastics of automobile industry, but, because nylon contains the large amide group of polarity, cause it to there is the shortcoming that easy water suction causes strength decreased, therefore generally all need to its strengthen, anti-aging modification, to improve its intensity and heat aging property, meet the service requirements under various harsh envrionment conditionss.
Due to adding of reinforcing filler and other auxiliary agent, generally all can there is the problems such as mobility variation and the reduction of product gloss appearance degree in the nylon composite materials after enhancing modified, especially when injection molding adopts the moulding of gas-assisted injection molding technology, due to its unique injection technique, inject time is longer, injection pressure, dwell pressure are low, therefore when producing the product of some structure, are easy to occur the discontented and poor situation of product gloss appearance degree of injection.
Application number is that the Chinese invention patent application of CN101191012A (application number is 200610118665.5) discloses a kind of high gloss, high long glass fiber-reinforced polyamide composite material and the manufacture method thereof of flowing, and this material is extruded the long glass fibres that the star-like polyamide resin melt impregnation 30%～60% of the modification mode parallel with particle length of preparation arrange and made by adopting twin screw extruder to react to existing linear polyamidoamine resin by 70%～40%.The component that the star-like polyamide resin of described modification contains following weight percentage: polyamide resin 94%～99%, 1,4-Diaminobutane-N, N '-tetra--1-propyl group amine 0.05%～5% and thermo-stabilizer 0.1～2%.This technical scheme is by adding the star-like polyamide resin of modification, improve the mechanical property of material, to overcome the technical problem that prior art brings the apparent mass of material product poor when improving glass-fibre reinforced polyamide product mechanical property, injection property is poor.
Summary of the invention
The invention provides a kind of polyamide compoiste material, can be used for automobile door handle gas assisted molding, this material has solved the problem that injection is discontented and gloss appearance reduces occurring in the auxiliary process of injection molding of matrix material gas, by mobility, improve, improve the performance of injection moulding and the visual appearance of raising product of polyamide compoiste material of the present invention.
A polyamide compoiste material, by the raw material of following weight percent, made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity.
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity, and the molecular chain of this nylon 6 is branched chain type, and its relative viscosity is 1.2-1.4, is high-fluidity nylon, and further preferably relative viscosity is 1.2.Branched chain type nylon 6 is to adopt particular polymeric method, making nylon 6 molecular chains of producing is dendritic, this branched chain type nylon 6 is compared with common straight chain nylon, in identical molecular weight situation, the spatial volume of molecule is less, the entanglement between molecule and molecule is less, therefore there is outstanding mobility and processibility, adopt the branched chain type nylon 6 that relative viscosity is 1.2 can guarantee that polyamide compoiste material of the present invention has better mobility, be conducive to the auxiliary injection processing of gas after enhancing modified.By mobility, improve, improve the performance of injection moulding and the visual appearance of raising product of polyamide compoiste material of the present invention.
As preferably, described polyamide compoiste material, by the raw material of following weight percent, made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity.
Further preferably, described polyamide compoiste material, by the raw material of following weight percent, made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity.
In the present invention, nylon 6 is as base-material, have tough wear-resisting, antifatigue, oil resistant, the good characteristic such as nontoxic, bat wool can play good enhancing to the performance of nylon 6, and polynite is evenly dispersed in matrix, simultaneously, polynite crystal layer is combined with base matter closely, between have stronger reactive force, in forcing machine, receive strong shearing force, substantially can disperse, and polynite crystal layer has good orientation.Appropriate epoxy resin can play crosslinked effect, and the crosslinked chain extension effect of epoxy resin is between molecular chain, to introduce more side chain, thereby plays internally plasticized effect, and molecular chain movement ability is increased.The present invention is main raw material by nylon 6, bat wool, polynite, epoxy resin, and in conjunction with thermo-stabilizer, processing aid and pigment when guaranteeing its mechanical property, mobility is improved, improved the performance of injection moulding and the visual appearance (as gloss appearance degree) of raising product of polyamide compoiste material of the present invention.
Described bat wool is one or more in alkali free glass fibre, carbon fiber, acicular wollastonite.As preferably, described alkali free glass fibre adopts surface through the alkali free glass fibre of silane coupler modified mistake, and Fibre diameter is 10 μ m-15 μ m, can reach balance dispersed and mechanical property.
Polynite, on the one hand as nucleator, is conducive to the crystallization of polymkeric substance, improves the apparent mass of matrix material, on the other hand, has improved heat-drawn wire and the mechanical property of matrix material.Described polynite adopts 1500～3000 object specifications.
A small amount of epoxy resin can form crosslinking structure between molecular chain, reduces the internal stress of material, has reduced the subsurface defect of material.Epoxy resin can adopt prior art, is preferably epoxy resin E44.
Described thermo-stabilizer is alkali metal halide, described alkali metal halide is one or more in cuprous iodide, cuprous chloride, potassiumiodide, Potassium Bromide, further preferably, described thermo-stabilizer is the mixture being comprised of the cuprous iodide of mass ratio 1:8 and potassiumiodide.
Described processing aid is various fatty acid metal calcium salts, further preferred, and described processing aid is calcium stearate, can improve Drawing abillity.
Described pigment is various mineral dyes, specifically can select one or more in carbon black, titanium dioxide, ferric oxide etc., can require to use according to color.
Further preferred, described polyamide compoiste material, by the raw material of following weight percent, made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity;
Described alkali free glass fibre adopts surface through the alkali free glass fibre of silane coupler modified mistake, and Fibre diameter is 10 μ m-15 μ m;
Described polynite adopts 1500～3000 object specifications;
Described epoxy resin adopts epoxy resin E44;
Described thermo-stabilizer is the mixture being comprised of the cuprous iodide of mass ratio 1:8 and potassiumiodide;
Described processing aid is calcium stearate.
The invention provides a kind of preparation method of polyamide compoiste material, adopt existing installation twin screw extruder to realize, easy handling and enforcement.
A preparation method for polyamide compoiste material, comprises the following steps:
Nylon 6, polynite, epoxy resin, thermo-stabilizer, processing aid and pigment are joined to stirrer for mixing to add twin screw extruder from main feed hopper after evenly, bat wool is added twin screw extruder from side position material hopper, after extruding, twin screw extruder through water-cooled, pelletizing and dry, obtains polyamide compoiste material.
Described stirrer is selected the conventional homogenizer in this area, generally can select rotating speed be 2000RPM～4000RPM (rev/min) homogenizer, the general time of mixing is 0.5min～1.5min.The described uniform condition of stirrer for mixing for to mix 0.5min～1.5min in 2000～4000 revs/min.
The Temperature Setting of first temperature section to the eight temperature sections of described twin screw extruder from feed zone to head is respectively 195～205 ℃, 190～200 ℃, 190～200 ℃, 180～190 ℃, 180～190 ℃, 170～180 ℃, 170～180 ℃, 170～180 ℃, and the temperature of die head is 190～200 ℃.
The Temperature Setting of first temperature section to the eight temperature sections of described twin screw extruder from feed zone to head is respectively 200 ℃, 195 ℃, 195 ℃, 185 ℃, 185 ℃, 175 ℃, 175 ℃, 175 ℃, and the temperature of die head is 195 ℃.
Polyamide compoiste material of the present invention can be prepared various hollow plastic products through the auxiliary injection molding of gas, preferred, can adopt the auxiliary injection molding of gas to prepare automobile door handle.
Compared with prior art, tool of the present invention has the following advantages:
Polyamide compoiste material of the present invention, utilize novel high-fluidity nylon 6 materials, and bat wool, polynite, epoxy resin etc. have been added, there is each other certain synergy, guaranteeing under material mechanical performance and thermotolerance condition, greatly improved the flowing property of matrix material after enhancing modified, meet the auxiliary injection molding special processing conditions of gas, improved the gloss of products appearance, temperature in the time of simultaneously greatly reducing injection molding due to the improvement of mobility, reduce injection processing temperature, improved production efficiency and qualification rate.
The preparation method of polyamide compoiste material of the present invention, adopts existing installation twin screw extruder to realize, and easy handling and enforcement are easy to large-scale industrialization and produce, and possess wide application prospect.
Polyamide compoiste material of the present invention can be prepared various hollow plastic products through the auxiliary injection molding of gas, be particularly suitable for adopting the auxiliary injection molding of gas to prepare automobile door handle, the automobile door handle mechanical property of preparation is excellent, and gloss appearance degree is good, quality is better, is conducive to market-oriented large-scale promotion application.
Embodiment
Embodiment 1
Polyamide compoiste material adopts the raw material of following weight percent:
68% nylon 6 (Zhuzhou Times new materials Science Co., Ltd, trade mark XC050, relative viscosity is 1.2 branched chain type nylon 6), 30% bat wool (alkali free glass fibre 435N, Mount Taishan glass factory, adopt surface through the alkali free glass fibre of silane coupler modified mistake, Fibre diameter is 10 μ m-15 μ m), 0.2% thermo-stabilizer (the leading HS02 of the U.S., the mixture being formed by cuprous iodide and the potassiumiodide of mass ratio 1:8), 0.8% processing aid (calcium stearate), 1% pigment (black masterbatch 3785, Cabot Co.,Ltd);
Nylon 6, thermo-stabilizer, processing aid and pigment are joined in homogenizer and from main feed hopper, added twin screw extruder after 3000RPM mixing 1min, bat wool is added twin screw extruder from side position material hopper, after extruding, twin screw extruder through water-cooled, pelletizing and dry, obtains polyamide compoiste material;
The Temperature Setting of first temperature section to the eight temperature sections of this twin screw extruder from feed zone to head is respectively 200 ℃, 195 ℃, 195 ℃, 185 ℃, 185 ℃, 175 ℃, 175 ℃, 175 ℃, and the temperature of die head is 195 ℃.
Embodiment 2
Polyamide compoiste material adopts the raw material of following weight percent:
58% nylon 6 (Zhuzhou Times new materials Science Co., Ltd, trade mark XC050, relative viscosity is 1.2 branched chain type nylon 6), 40% alkali free glass fibre 435N (Mount Taishan glass factory, adopt surface through the alkali free glass fibre of silane coupler modified mistake, Fibre diameter is 10 μ m-15 μ m), 0.2% thermo-stabilizer (the leading HS02 of the U.S., the mixture being formed by cuprous iodide and the potassiumiodide of mass ratio 1:8), 0.8% processing aid (calcium stearate), 1% pigment (black masterbatch 3785, Cabot Co.,Ltd);
Nylon 6, thermo-stabilizer, processing aid and pigment are joined in homogenizer and from main feed hopper, added twin screw extruder after 3000RPM mixing 1min, bat wool is added twin screw extruder from side position material hopper, after extruding, twin screw extruder through water-cooled, pelletizing and dry, obtains polyamide compoiste material;
The Temperature Setting of first temperature section to the eight temperature sections of this twin screw extruder from feed zone to head is respectively 200 ℃, 195 ℃, 195 ℃, 185 ℃, 185 ℃, 175 ℃, 175 ℃, 175 ℃, and the temperature of die head is 195 ℃.
Embodiment 3
Polyamide compoiste material adopts the raw material of following weight percent:
68% nylon 6 (Zhuzhou Times new materials Science Co., Ltd, trade mark XC050, relative viscosity is 1.2 branched chain type nylon 6), 27.5% bat wool (alkali free glass fibre 435N, Mount Taishan glass factory, adopt surface through the alkali free glass fibre of silane coupler modified mistake, Fibre diameter is 10 μ m-15 μ m), 2% polynite (China Resources, Lingshou County mineral powder source mill, 2500 orders), 0.5% epoxy resin (epoxy resin E44, Ba Ling petrochemical industry), 0.2% thermo-stabilizer (the leading HS02 of the U.S., the mixture being formed by cuprous iodide and the potassiumiodide of mass ratio 1:8), 0.8% processing aid (calcium stearate), 1% pigment (black masterbatch 3785, Cabot Co.,Ltd),
Nylon 6, polynite, epoxy resin, thermo-stabilizer, processing aid and pigment are joined in homogenizer and from main feed hopper, added twin screw extruder after 3000RPM mixing 1min, bat wool is added twin screw extruder from side position material hopper, after extruding, twin screw extruder through water-cooled, pelletizing and dry, obtains polyamide compoiste material;
The Temperature Setting of first temperature section to the eight temperature sections of this twin screw extruder from feed zone to head is respectively 200 ℃, 195 ℃, 195 ℃, 185 ℃, 185 ℃, 175 ℃, 175 ℃, 175 ℃, and the temperature of die head is 195 ℃.
Embodiment 4
Polyamide compoiste material adopts the raw material of following weight percent:
58% nylon 6 (Zhuzhou Times new materials Science Co., Ltd, trade mark XC050, relative viscosity is 1.2 branched chain type nylon 6), 37.5% alkali free glass fibre 435N (Mount Taishan glass factory, adopt surface through the alkali free glass fibre of silane coupler modified mistake, Fibre diameter is 10 μ m-15 μ m), 2% polynite (China Resources, Lingshou County mineral powder source mill, 2500 orders), 0.5% epoxy resin (epoxy resin E44, Ba Ling petrochemical industry), 0.2% thermo-stabilizer (the leading HS02 of the U.S., the mixture being formed by cuprous iodide and the potassiumiodide of mass ratio 1:8), 0.8% processing aid (calcium stearate), 1% pigment (black masterbatch 3785, Cabot Co.,Ltd),
Nylon 6, polynite, epoxy resin, thermo-stabilizer, processing aid and pigment are joined in homogenizer and from main feed hopper, added twin screw extruder after 3000RPM mixing 1min, bat wool is added twin screw extruder from side position material hopper, after extruding, twin screw extruder through water-cooled, pelletizing and dry, obtains polyamide compoiste material;
The Temperature Setting of first temperature section to the eight temperature sections of this twin screw extruder from feed zone to head is respectively 200 ℃, 195 ℃, 195 ℃, 185 ℃, 185 ℃, 175 ℃, 175 ℃, 175 ℃, and the temperature of die head is 195 ℃.
Comparative example 1
The nylon 6 that the model that adopts Xin Hui Meida Company to produce is M2400, all the other are with embodiment 1.
Comparative example 2
The nylon 6 that the model that adopts Xin Hui Meida Company to produce is M2400, all the other are with embodiment 2.
By embodiment 1,2,3 and 4 and the polyamide compoiste material of comparative example 1,2 preparation by injector forming process, be test bars, carried out mechanical property and outward appearance comparison and detection, result is as shown in table 1;
Table 1
By embodiment 1,2,3 and 4 and the polyamide compoiste material of comparative example 1,2 preparation by injector gas assisted molding, be processed as automobile door handle product, contrast outward appearance, injection temperature and product tensile test, result is as shown in table 2.
Table 2
| Contrast project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 |
| Tension intensity (N) | 1550 | 1852 | 1650 | 1886 | 1450 | 1758 |
| Outward appearance (glossiness range estimation) | Excellent | More excellent | Excellent+ | Excellent | Poor | Very poor |
| High injection temperature ℃ | 250 | 255 | 252 | 256 | 280 | 290 |
From the experimental result of table 1 and table 2, can find out, embodiment 1,2 and comparative example 1,2 are compared, selecting relative viscosity is that 1.2 branched chain type nylon 6 can make the mobility of polyamide compoiste material of the present invention greatly improve, improved the gloss of products appearance, the temperature when improvement of mobility can reduce injection molding greatly simultaneously, has reduced injection processing temperature, has improved production efficiency and qualification rate, and very little to the reduction of mechanical property, almost can ignore its impact.Embodiment 3,4 and embodiment 1,2 are compared, visible, in the situation that adding polynite and epoxy resin, when guaranteeing the visual appearance of product, can further improve the mechanical property of polyamide compoiste material of the present invention.
Claims (10)
1. a polyamide compoiste material, is characterized in that, by the raw material of following weight percent, is made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity.
2. polyamide compoiste material according to claim 1, is characterized in that, by the raw material of following weight percent, is made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity.
3. polyamide compoiste material according to claim 2, is characterized in that, by the raw material of following weight percent, is made:
It is 1.2-1.4 branched chain type nylon 6 that described nylon 6 adopts relative viscosity.
4. according to the polyamide compoiste material described in claim 1,2 or 3, it is characterized in that, described bat wool is one or more in alkali free glass fibre, carbon fiber, acicular wollastonite.
5. according to the polyamide compoiste material described in claim 1,2 or 3, it is characterized in that, described thermo-stabilizer is one or more in cuprous iodide, cuprous chloride, potassiumiodide, Potassium Bromide.
6. according to the polyamide compoiste material described in claim 1,2 or 3, it is characterized in that, described processing aid is fatty acid metal calcium salt.
7. according to the preparation method of the polyamide compoiste material described in claim 1～6 any one, it is characterized in that, comprise the following steps:
Nylon 6, polynite, epoxy resin, thermo-stabilizer, processing aid and pigment are joined to stirrer for mixing to add twin screw extruder from main feed hopper after evenly, bat wool is added twin screw extruder from side position material hopper, after extruding, twin screw extruder through water-cooled, pelletizing and dry, obtains polyamide compoiste material.
8. the preparation method of polyamide compoiste material according to claim 7, is characterized in that, the uniform condition of described stirrer for mixing for to mix 0.5min～1.5min in 2000～4000 revs/min.
9. the preparation method of polyamide compoiste material according to claim 7, it is characterized in that, the Temperature Setting of first temperature section to the eight temperature sections of described twin screw extruder from feed zone to head is respectively 195～205 ℃, 190～200 ℃, 190～200 ℃, 180～190 ℃, 180～190 ℃, 170～180 ℃, 170～180 ℃, 170～180 ℃, and the temperature of die head is 190～200 ℃.
10. according to the polyamide compoiste material described in claim 1～6 any one, adopt the application of the auxiliary injection molding of gas in preparing automobile door handle.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105062048A (en) * | 2015-08-25 | 2015-11-18 | 惠州市沃特新材料有限公司 | High-gloss high-strength nylon and preparation method thereof |
| CN105694366A (en) * | 2016-03-14 | 2016-06-22 | 苏州莱特复合材料有限公司 | Preparation method of impact-resistant composite material for car bumpers |
| CN106189217A (en) * | 2016-07-18 | 2016-12-07 | 天津金发新材料有限公司 | A kind of polyamide material for preparing cold-resistant heat insulating strip and preparation method thereof |
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| CN106189217A (en) * | 2016-07-18 | 2016-12-07 | 天津金发新材料有限公司 | A kind of polyamide material for preparing cold-resistant heat insulating strip and preparation method thereof |
| CN106751761A (en) * | 2016-12-02 | 2017-05-31 | 株洲时代新材料科技股份有限公司 | High rigidity high glaze carbon fiber reinforced polyamide composite material and preparation method thereof |
| CN107877784A (en) * | 2017-12-12 | 2018-04-06 | 柳州市鑫裕塑胶有限责任公司 | A kind of gas-assisted injection molding technique of outward open handle |
| CN110305469A (en) * | 2019-05-27 | 2019-10-08 | 中广核俊尔(浙江)新材料有限公司 | A kind of polyamide compoiste material and its preparation method and application for gas assisted molding |
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| CN112175383A (en) * | 2020-11-09 | 2021-01-05 | 段嘉敏 | High-weather-resistance high-rigidity modified engineering plastic and preparation method thereof |
| CN113185832A (en) * | 2021-04-29 | 2021-07-30 | 青岛东一岳新材料有限公司 | Special glass fiber reinforced PA6 material for automobile handles and processing technology |
| CN114702820A (en) * | 2022-04-02 | 2022-07-05 | 江苏扬农化工集团有限公司 | Natural mineral modified nylon composite material and preparation method thereof |
| CN114702820B (en) * | 2022-04-02 | 2023-08-08 | 江苏扬农化工集团有限公司 | Natural mineral modified nylon composite material and preparation method thereof |
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