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ACS-modified nylon PA66 particle material and preparation method and application thereof on automobile

A PA66, particle material technology, applied in the field of engineering plastics, can solve the problems of insufficient strength, toughness, corrosion resistance, unstable product quality, affecting the performance of automobiles, etc., to achieve good fluidity, stable injection molding process, and stable product quality. Effect

Active Publication Date: 2014-07-16
ANHUI KAIDI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the progress of society, the use of automobiles is increasing. Many spare parts on automobiles are mostly made of nylon. Some of the connection plugs for system signal transmission are plastic inserts, and there are wire contact components in the plastic inserts. The other end of the plastic insert is provided with a plastic connecting insert. The existing plastic connecting insert is mainly made of ordinary nylon material, which is compounded by adding a toughening agent. After mixing various materials, the dispersion of each component is not good Good, poor compatibility between components, insufficient strength, toughness, corrosion resistance, high material cost, difficult demoulding, poor surface gloss, poor processing performance, resulting in unstable product quality, which affects the performance of the car

Method used

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  • ACS-modified nylon PA66 particle material and preparation method and application thereof on automobile

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Experimental program
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Effect test

Embodiment 1

[0031] Prepare ACS modified nylon PA66 particle material, the specific steps are:

[0032] The first step: prepare material A (kg):

[0033] Weigh nylon PA6630, ACS resin 40, polycarbonate 15, aminopropyltriethoxysilane 0.2, methyltriethoxysilane 0.4, antioxidant 10100.2, dioctadecyl ester 0.3, polycaproic acid internal Ester 2, polyethylene wax 1.5, modified nano powder 6,

[0034] Among them, the modified nano powder is prepared by the following method: after mixing calcium carbonate, lapis lazuli powder, and potassium feldspar powder in equal proportions, burning at 600-700°C for 4-5 hours, then grinding into nano powder, mixing into Stir evenly with 3-5% bis(dioctyloxypyrophosphate) ethylene titanate by weight of the powder, dry and pulverize into powder,

[0035] Mix the weighed raw materials evenly, inhale into a drying barrel, and dry at 90-100°C for 4-6 hours;

[0036] When the water content of the mixture is less than 0.2%, the drying ends;

[0037] The dried mixe...

Embodiment 2

[0046] With the nylon PA66 particle material of ACS modification that embodiment 1 makes, prepare the connector blade type plug sheath DJ7041-6.0-11 on the automobile, comprise the following steps:

[0047] (1) After mixing 25kg of ACS modified nylon PA66 particles, 10g of titanium dioxide and 30g of yellow powder evenly, add them to the dryer and dry them at 100-120°C for 6 hours.

[0048] (2) Set the temperature of the heating section of the injection molding machine: the first section is 275±5°C, the second section is 270±5°C, the third section is 265±5°C, the fourth section is 260±5°C, the fifth section is 255±5°C ℃;

[0049] (3) Add the dried raw materials into the injection molding machine, and set the molding process parameters of the injection molding section:

[0050] a. The first stage is injected with a medium pressure of 45-50Mpa and a medium speed of 45-55m / s. The injection time is 1.0-1.5 seconds, and the amount of glue injected is 78-80% of the product;

[005...

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Abstract

The invention discloses an ACS modified nylon PA66 particle material, which is obtained by extruding and granulating modified nylon PA66 material A and material B after mixing. The invention also discloses the obtained modified nylon PA66 particle material In the application of auto parts, it is mainly to add the dried modified material into the injection molding machine that has been heated up, and set the injection pressure, speed, injection time and injection volume of different sections of the injection molding machine at the same time. The final holding pressure and holding speed have reached the best injection molding process, and the final qualified product is obtained. The plastic connector for automobiles injection-molded with the modified nylon PA66 particle material of the present invention has the characteristics of high impact, good weather resistance, good UV resistance, ozone resistance, and flame retardancy. At the same time, the injection molding process is stable, The product quality is stable, the pass rate is high, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of engineering plastics, in particular to a modified ACS-modified nylon PA66 particle material and a preparation method and application thereof. Background technique [0002] With the progress of society, the use of automobiles is increasing. Many spare parts on automobiles are mostly made of nylon. Some of the connection plugs for system signal transmission are plastic inserts, and there are wire contact components in the plastic inserts. The other end of the plastic insert is provided with a plastic connecting insert. The existing plastic connecting insert is mainly made of ordinary nylon material, which is compounded by adding a toughening agent. After mixing various materials, the dispersion of each component is not good Good, poor compatibility between components, insufficient strength, toughness, corrosion resistance, high material cost, difficult demoulding, poor surface gloss, poor processing performance, resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L51/00C08L69/00C08L23/20C08L67/04C08L25/12C08L55/02C08L23/06C08K13/06C08K9/06C08K9/04C08K9/02C08K3/34C08K3/26C08K5/20C08K5/5419C08K5/544B29C47/92B29C45/76B29C48/92
CPCB29C47/92
Inventor 张强
Owner ANHUI KAIDI ELECTRIC