CN110093031A - A kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable and preparation method thereof - Google Patents
A kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable and preparation method thereof Download PDFInfo
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- CN110093031A CN110093031A CN201910479287.3A CN201910479287A CN110093031A CN 110093031 A CN110093031 A CN 110093031A CN 201910479287 A CN201910479287 A CN 201910479287A CN 110093031 A CN110093031 A CN 110093031A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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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
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/016—Additives defined by their aspect ratio
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses plating nylon PA6 lamp housing materials of a kind of high-intensity high heat-resistance dimensionally stable and preparation method thereof, the present invention selects the talcum powder of high mesh number high silicon content, and the mica powder of high radius-thickness ratio small particle carries out compounding and significantly improves the intensity and heat-resisting and dimensional stability of nylon PA6；Filler is activated through coupling agent, by adding compatilizer, the binding force of enhancing and nylon, greatly strengthen the intensity and heat resistance of nylon, it is inadequate to solve some nylon PA6 intensity, and temperature excessively high the problems such as causing modification in plating, and improves the surface effect of plating；Pass through the moisture and volatile matter content in formulation optimization control system, improve the surface effect of plating, plating nylon PA6 lamp housing material of the invention has the following characteristics that 1. have high mechanical strength, it is high that yields is electroplated in heat resistance and dimensional stability 2., the defects of 3. binding force of cladding material of stability is good, and the test of hundred lattice is without obviously 4. plate surfaces are fallen off without apparent point.
Description
Technical field
The present invention relates to technical field of polymer materials, in particular to a kind of plating Buddhist nun of high-intensity high heat-resistance dimensionally stable
Imperial PA6 lamp housing material and preparation method thereof.
Background technique
There are many type of plastics, but and not all plastics can be electroplated.The binding force of some plastics and metal layer is very
Difference, without practical value;Certain physical properties such as coefficient of expansion of some plastics and the coat of metal has big difference, in high temperature difference ring
Its service performance is difficult to ensure in border.It is at most ABS currently used for being electroplated, followed by PP.The intensity of unmodified nylon PA6 and
Heat resistance is poor, and dimensional stability is bad, it is difficult to meet the temperature use condition of car light, electroplating effect is unsatisfactory, and plating is not
Yields is higher, and will appear plate surface has the defects of point, peeling, binding force of cladding material is bad more.Nylon PA6 is modified to be had
High mechanical strength, heat resistance, suitable for plated items such as vehicle lamp bodies, it is therefore desirable to develop a kind of high-intensity high heat-resistance size
Stable plating nylon PA6 lamp housing material.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of plating nylon PA6 lamps of high-intensity high heat-resistance dimensionally stable
Shell material and preparation method thereof.
The present invention is to solve technical solution used by its technical problem: a kind of high-intensity high heat-resistance dimensionally stable
Nylon PA6 lamp housing material, including following parts by weight material is electroplated:
PA6 resin 60% ~ 75%, talcum powder 20% ~ 30%, mica powder 10% ~ 20%, coupling agent 0.1% ~ 0.5%, compatilizer 2% ~ 5%, profit
Lubrication prescription A 0.5% ~ 1%, lubricant B 0.5% ~ 1%, primary antioxidant 0.2% ~ 0.5%, auxiliary antioxidant 0.2% ~ 0.5%.
As a further improvement of the present invention, the PA6 resin is polyamide, and viscosity guarantees material between 0.26 ~ 0.28
Material has enough mobility.
As a further improvement of the present invention, the talcum powder is a kind of high mesh number, talcum of the mesh number 2000 ~ 3000
Powder has high silicone content, and silicone content is 62%.
As a further improvement of the present invention, the mica powder is a kind of muscovite of the high radius-thickness ratio of high mesh number, partial size
It is 18 μm, radius-thickness ratio 80.
As a further improvement of the present invention, the coupling agent be titanate coupling agent and silane coupling agent 1:1 compound,
Titanate coupling agent is monoalkoxy type, and silane coupling agent is N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane.
As a further improvement of the present invention, the compatilizer is POE grafted maleic anhydride polymer.
As a further improvement of the present invention, the lubricant A is pentaerythritol stearate, and the lubricant B is silicon
Oil.Pentaerythritol stearate has good thermal stability and low volatility at high temperature.Due to there is no the chromophores such as amide
Group, will not cause product xanthochromia, discoloration can keep the original color of product, and can promote the color of product.It is good flowing and
Stripping feature improves the dispersibility of filler, helps to improve the effect of plating.
As a further improvement of the present invention, the primary antioxidant is Hinered phenols antioxidant, N, N'- be bis--(3- (3,5-
Di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine.It is good with nylon compatibility, there is high heat resistance and low volatility, subtract
The performance loss that the degradation of few PA6 process generates, reduces to plating resistance influence.
As a further improvement of the present invention, the auxiliary antioxidant is phosphite antioxidant, with Hinered phenols antioxygen
Agent compounding plays good synergy.
A kind of preparation method of the plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable, preparation method include
Following steps:
(1) talcum powder, mica powder are accurately weighed according to the weight ratio, and lubricant is added high-speed mixer, is warming up to 100 DEG C of items
Under part, the coupling agent in formula is weighed, blender is added, stirs 20min clock, is released spare；
(2) the PA6 raw material in formula is accurately weighed, the pellets such as compatilizer are added the filler being activated in (1) step, stir
Mix 10min clock；
(3) by the material mixed in (2) step be added double screw extruder loading hopper, 230~250 DEG C of barrel temperature setting,
250 DEG C of head；
(4) by squeezing out, water cooling air-dries, a kind of plating nylon PA6 material of high-intensity high heat-resistance dimensionally stable is made after pelletizing
Material.
The present invention selects the talcum powder of high mesh number high silicon content, and the mica powder of high radius-thickness ratio small particle compound and significantly mentioned
The high intensity of nylon PA6 and heat-resisting and dimensional stability；Filler is activated through coupling agent, by adding compatilizer, enhancing
With the binding force of nylon, the intensity and heat resistance of nylon are greatly strengthened, it is inadequate to solve some nylon PA6 intensity, and in electricity
Temperature excessively high the problems such as causing modification when plating, and improve the surface effect of plating；Pass through the water in formulation optimization control system
Point and volatile matter, improve the surface effect of plating.
Plating nylon PA6 lamp housing material of the invention has the following characteristics that 1. have high mechanical strength, heat resistance and ruler
Yields height is electroplated in very little stability 2., and 3. binding force of cladding material of stability is good, and the test of hundred lattice is without 4. plate surfaces that obviously fall off
The defects of without apparent point.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
Embodiment one
A kind of plating nylon PA6 material of high-intensity high heat-resistance dimensionally stable, including following parts by weight material:
72 parts of PA6 resin, 20 parts of talcum powder, 5 parts of mica powder, 0.2 part of coupling agent, 3 parts of compatilizer, 0.3 part of lubricant A, lubrication
Agent B 0.2 part of %, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant.
The PA6 resin is polyamide, and relative viscosity guarantees that material has enough mobility 0.27.
The talcum powder is a kind of high mesh number, and mesh number is the talcum powder of 2000 mesh, has high silicone content, silicone content exists
60%。
The mica powder is a kind of muscovite of the high radius-thickness ratio of high mesh number, and partial size is 28 μm, radius-thickness ratio 70.
The coupling agent is titanate coupling agent and silane coupling agent 1:1 compound.Titanate coupling agent is monoalkoxy
Type, silane coupling agent are N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, have high reactivity, the two is multiple
The binding force that resin and filler are substantially increased after matching improves the dispersibility of filler, significantly improves the mechanical property of material
With it is plating resistance.
The compatilizer is POE grafted maleic anhydride polymer
The lubricant A is pentaerythritol stearate.
Pentaerythritol stearate has good thermal stability and low volatility at high temperature.Due to there is no the hair such as amide
Color base group, will not cause product xanthochromia, and discoloration can keep the original color of product, and can promote the color of product.Good stream
Dynamic and stripping feature, improves the dispersibility of filler, helps to improve the effect of plating.
The lubricant B is silicone oil.
The primary antioxidant is Hinered phenols antioxidant, N, N'- be bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl
Base) hexamethylene diamine, it is good with nylon compatibility, there is high heat resistance and low volatility, reduce the degradation generation of PA6 process
Performance loss is reduced to plating resistance influence.
The auxiliary antioxidant is phosphite antioxidant, plays with Hinered phenols antioxidant compounding and good cooperates with effect
Fruit.
Preparation method the following steps are included:
(1) talcum powder, mica powder are accurately weighed according to the weight ratio, and lubricant is added high-speed mixer, is warming up to 100 DEG C of items
Under part, the coupling agent in formula is weighed, blender is added, stirs 20min clock, is released spare.
(2) accurately weigh formula in PA6 raw material, the pellets such as compatilizer, be added (1) step in be activated fill out
Material stirs 10min clock.
(3) double screw extruder loading hopper, barrel temperature setting 230~250 is added in the material mixed in (2) step
DEG C, 250 DEG C of head.
(4) by squeezing out, water cooling air-dries, a kind of plating nylon PA6 of high-intensity high heat-resistance dimensionally stable is made after pelletizing
Material
The performance test results are as follows:
| Performance | Unit | Market similar product | Embodiment 1 |
| Tensile strength | MPa | 55 | 70 |
| Elongation at break | % | 5 | 10 |
| Bending strength | MPa | 90 | 100 |
| Bending modulus | MPa | 4500 | 5000 |
| Cantilever beam impact strength | KJ/M2 | 4.5 | 6 |
| Heat distortion temperature | ℃ | 80 | 100 |
| Plating performance | The test of hundred lattice, which has, to fall off | Hundred lattice test nothing obviously falls off |
Embodiment two
A kind of plating nylon PA6 material of high-intensity high heat-resistance dimensionally stable, including following parts by weight material:
68 parts of PA6 resin, 20 parts of talcum powder, 8 parts of mica powder, 0.2 part of coupling agent, 4 parts of compatilizer, 0.5 part of lubricant A, lubrication
Agent B 0.2 part of %, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant.
The PA6 resin is polyamide, and relative viscosity guarantees that material has enough mobility 0.27.
The talcum powder is a kind of high mesh number, and mesh number is the talcum powder of 3000 mesh, has high silicone content, silicone content exists
62%。
The mica powder is a kind of muscovite of the high radius-thickness ratio of high mesh number, and partial size is 18 μm, radius-thickness ratio 80.
The coupling agent is titanate coupling agent and silane coupling agent 1:1 compound.Titanate coupling agent is monoalkoxy
Type, silane coupling agent are N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, have high reactivity, the two is multiple
The binding force that resin and filler are substantially increased after matching improves the dispersibility of filler, significantly improves the mechanical property of material
With it is plating resistance.
The compatilizer is POE grafted maleic anhydride polymer
The lubricant A is pentaerythritol stearate.
Pentaerythritol stearate has good thermal stability and low volatility at high temperature.Due to there is no the hair such as amide
Color base group, will not cause product xanthochromia, and discoloration can keep the original color of product, and can promote the color of product.Good stream
Dynamic and stripping feature, improves the dispersibility of filler, helps to improve the effect of plating.
The lubricant B is silicone oil.
The primary antioxidant is Hinered phenols antioxidant, N, N'- be bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl
Base) hexamethylene diamine, it is good with nylon compatibility, there is high heat resistance and low volatility, reduce the degradation generation of PA6 process
Performance loss is reduced to plating resistance influence.
The auxiliary antioxidant is phosphite antioxidant, plays with Hinered phenols antioxidant compounding and good cooperates with effect
Fruit.
Preparation method the following steps are included:
(1) talcum powder, mica powder are accurately weighed according to the weight ratio, and lubricant is added high-speed mixer, is warming up to 100 DEG C of items
Under part, the coupling agent in formula is weighed, blender is added, stirs 20min clock, is released spare.
(2) accurately weigh formula in PA6 raw material, the pellets such as compatilizer, be added (1) step in be activated fill out
Material stirs 10min clock.
(3) double screw extruder loading hopper, barrel temperature setting 230~250 is added in the material mixed in (2) step
DEG C, 250 DEG C of head.
(4) by squeezing out, water cooling air-dries, a kind of plating nylon PA6 of high-intensity high heat-resistance dimensionally stable is made after pelletizing
Material
The performance test results are as follows:
| Performance | Unit | Market similar product | Embodiment 2 |
| Tensile strength | MPa | 55 | 72 |
| Elongation at break | % | 5 | 12 |
| Bending strength | MPa | 90 | 105 |
| Bending modulus | MPa | 4500 | 5200 |
| Cantilever beam impact strength | KJ/M2 | 4.5 | 6.5 |
| Heat distortion temperature | ℃ | 80 | 105 |
| Plating performance | The test of hundred lattice, which has, to fall off | Hundred lattice test nothing obviously falls off |
Embodiment three
A kind of plating nylon PA6 material of high-intensity high heat-resistance dimensionally stable, including following parts by weight material:
65 parts of PA6 resin, 20 parts of talcum powder, 10 parts of mica powder, 0.3 part of coupling agent, 5 parts of compatilizer, 0.5 part of lubricant A, profit
Lubrication prescription B 0.5 part of %, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant.
The PA6 resin is polyamide, and relative viscosity guarantees that material has enough mobility 0.27.
The talcum powder is a kind of high mesh number, and mesh number is the talcum powder of 3000 mesh, has high silicone content, silicone content exists
62%。
The mica powder is a kind of muscovite of the high radius-thickness ratio of high mesh number, and partial size is 18 μm, radius-thickness ratio 80.
The coupling agent is titanate coupling agent and silane coupling agent 1:1 compound.Titanate coupling agent is monoalkoxy
Type, silane coupling agent are N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, have high reactivity, the two is multiple
The binding force that resin and filler are substantially increased after matching improves the dispersibility of filler, significantly improves the mechanical property of material
With it is plating resistance.
The compatilizer is POE grafted maleic anhydride polymer
The lubricant A is pentaerythritol stearate.
Pentaerythritol stearate has good thermal stability and low volatility at high temperature.Due to there is no the hair such as amide
Color base group, will not cause product xanthochromia, and discoloration can keep the original color of product, and can promote the color of product.Good stream
Dynamic and stripping feature, improves the dispersibility of filler, helps to improve the effect of plating.
The lubricant B is silicone oil.
The primary antioxidant is Hinered phenols antioxidant, N, N'- be bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl
Base) hexamethylene diamine, it is good with nylon compatibility, there is high heat resistance and low volatility, reduce the degradation generation of PA6 process
Performance loss is reduced to plating resistance influence.
The auxiliary antioxidant is phosphite antioxidant, plays with Hinered phenols antioxidant compounding and good cooperates with effect
Fruit.
Preparation method the following steps are included:
(1) talcum powder, mica powder are accurately weighed according to the weight ratio, and lubricant is added high-speed mixer, is warming up to 100 DEG C of items
Under part, the coupling agent in formula is weighed, blender is added, stirs 20min clock, is released spare.
(2) accurately weigh formula in PA6 raw material, the pellets such as compatilizer, be added (1) step in be activated fill out
Material stirs 10min clock.
(3) double screw extruder loading hopper, barrel temperature setting 230~250 is added in the material mixed in (2) step
DEG C, 250 DEG C of head.
(4) by squeezing out, water cooling air-dries, a kind of plating nylon PA6 of high-intensity high heat-resistance dimensionally stable is made after pelletizing
Material
The performance test results are as follows:
| Performance | Unit | Market similar product | Embodiment 2 |
| Tensile strength | MPa | 55 | 75 |
| Elongation at break | % | 5 | 15 |
| Bending strength | MPa | 90 | 110 |
| Bending modulus | MPa | 4500 | 5500 |
| Cantilever beam impact strength | KJ/M2 | 4.5 | 7 |
| Heat distortion temperature | ℃ | 80 | 110 |
| Plating performance | The test of hundred lattice, which has, to fall off | Hundred lattice test nothing obviously falls off |
The similar product of comparison in the market, plating nylon PA6 lamp housing material prepared by the present invention has the characteristics that following: 1. have
Yields height is electroplated in high mechanical strength, heat resistance and dimensional stability 2., and 3. binding force of cladding material of stability is good, and hundred lattice are surveyed
The defects of examination is without obviously 4. plate surfaces are fallen off without apparent point.
Claims (10)
1. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable, it is characterised in that: including following parts by weight
Material:
PA6 resin 60% ~ 75%, talcum powder 20% ~ 30%, mica powder 10% ~ 20%, coupling agent 0.1% ~ 0.5%, compatilizer 2% ~ 5%, profit
Lubrication prescription A 0.5% ~ 1%, lubricant B 0.5% ~ 1%, primary antioxidant 0.2% ~ 0.5%, auxiliary antioxidant 0.2% ~ 0.5%.
2. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the PA6 resin is polyamide, and viscosity is between 0.26 ~ 0.28.
3. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the talcum powder is a kind of high mesh number, and talcum powder of the mesh number 2000 ~ 3000 has high silicone content, and silicone content exists
62%。
4. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the mica powder is a kind of muscovite of the high radius-thickness ratio of high mesh number, and partial size is 18 μm, radius-thickness ratio 80.
5. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the coupling agent is titanate coupling agent and silane coupling agent 1:1 compound, and titanate coupling agent is monoalkoxy type,
Silane coupling agent is N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane.
6. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the compatilizer is POE grafted maleic anhydride polymer.
7. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the lubricant A is pentaerythritol stearate, and the lubricant B is silicone oil.
8. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the primary antioxidant is Hinered phenols antioxidant, N, N'- be bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono)
Hexamethylene diamine.
9. a kind of plating nylon PA6 lamp housing material of high-intensity high heat-resistance dimensionally stable according to claim 1, feature
Be: the auxiliary antioxidant is phosphite antioxidant.
10. a kind of high-intensity high heat-resistance dimensionally stable plating nylon PA6 lamp housing material preparation method, preparation method include with
Lower step:
(1) talcum powder, mica powder are accurately weighed according to the weight ratio, and lubricant is added high-speed mixer, is warming up to 100 DEG C of items
Under part, the coupling agent in formula is weighed, blender is added, stirs 20min clock, is released spare；
(2) the PA6 raw material in formula is accurately weighed, the pellets such as compatilizer are added the filler being activated in (1) step, stir
Mix 10min clock；
(3) by the material mixed in (2) step be added double screw extruder loading hopper, 230~250 DEG C of barrel temperature setting,
250 DEG C of head；
(4) by squeezing out, water cooling air-dries, a kind of plating nylon PA6 material of high-intensity high heat-resistance dimensionally stable is made after pelletizing
Material.
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| CN201910479287.3A CN110093031B (en) | 2019-06-04 | 2019-06-04 | High-strength high-heat-resistance stable-size electroplated nylon PA6 lamp housing material and preparation method thereof |
| CN202210591734.6A CN114891345B (en) | 2019-06-04 | 2019-06-04 | Electroplated nylon PA6 lamp housing material and preparation method thereof |
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| CN111004497A (en) * | 2019-12-24 | 2020-04-14 | 上海中镭新材料科技有限公司 | Electroplating nylon material and preparation method thereof |
| CN111269561A (en) * | 2020-03-26 | 2020-06-12 | 合肥卡洛塑业科技有限公司 | Polyamide 6 composition and application thereof |
| CN113667297A (en) * | 2021-09-03 | 2021-11-19 | 惠州市良化新材料有限公司 | Low-water-absorption nylon composite material |
| CN115746545A (en) * | 2022-11-08 | 2023-03-07 | 金发科技股份有限公司 | Polyamide composition and preparation method and application thereof |
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| CN116218205B (en) * | 2023-03-03 | 2024-03-29 | 金旸（厦门）新材料科技有限公司 | Electroplated heat-conducting nylon composite material and preparation method thereof |
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| CN111004497A (en) * | 2019-12-24 | 2020-04-14 | 上海中镭新材料科技有限公司 | Electroplating nylon material and preparation method thereof |
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| CN111004497B (en) * | 2019-12-24 | 2022-03-29 | 上海中镭新材料科技有限公司 | Electroplating nylon material and preparation method thereof |
| CN111269561A (en) * | 2020-03-26 | 2020-06-12 | 合肥卡洛塑业科技有限公司 | Polyamide 6 composition and application thereof |
| CN113667297A (en) * | 2021-09-03 | 2021-11-19 | 惠州市良化新材料有限公司 | Low-water-absorption nylon composite material |
| CN113667297B (en) * | 2021-09-03 | 2024-03-26 | 惠州市良化新材料有限公司 | Nylon composite material with low water absorption rate |
| CN115746545A (en) * | 2022-11-08 | 2023-03-07 | 金发科技股份有限公司 | Polyamide composition and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110093031B (en) | 2022-05-03 |
| CN114891345A (en) | 2022-08-12 |
| CN114891345B (en) | 2024-02-06 |
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