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ASA-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 automobile performance, etc., to achieve good fluidity, stable injection molding process, and stable product quality. Effect

Active Publication Date: 2015-03-25
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. Among them, the connecting plugs for system signal transmission are mostly plastic plugs, and there are wire contact components inside the plastic plugs. There is a plastic connecting plug at the other end of the plastic plug. The existing plastic connecting plug is mainly made of ordinary nylon material, which is compounded by adding a toughening agent. After mixing various materials, the dispersibility of each component in the blending process Poor, 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 quality of the car performance

Method used

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  • ASA-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 ASA-modified nylon PA66 particle material, the specific steps are:

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

[0033] Weigh nylon PA66 50, ASA resin 15, polycarbonate 15, 3-aminopropyltrimethoxysilane 0.2, methyltriethoxysilane 0.4, antioxidant 1010 0.2, diphenylamine 0.3, polycaprolactone 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 mixed material is ...

Embodiment 2

[0046] With the nylon PA66 particle material of the ASA modification that embodiment 1 makes, prepare the connector blade type plug sheath DJ7115-3-11 on the automobile, comprise the following steps:

[0047] (1) After mixing 25kg of ASA-modified nylon PA66 particles and 1.5g of yellow-green powder evenly, add it to the dryer and dry it at 100-120°C for 5 hours.

[0048] (2) Set the temperature of the heating section of the injection molding machine: the first section is 285±5°C, the second section is 280±5°C, the third section is 270±5°C, the fourth section is 265±5°C, and the fifth section is 260±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 section adopts medium and low pressure of 35-40 Mpa and medium speed injection 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;

[0051]b. The s...

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Abstract

The invention discloses an ASA (Acrylonitrile Styrene Acrylate)-modified nylon PA66 particle material formed by pelleting a mixture of an A material and a B material of the modified nylon PA66 in an extruding manner. The invention further discloses an application of the modified nylon PA66 particle material on an automobile component. A preparation method mainly comprises the following steps: putting a modified material which is dried into an injection molding machine with a rising temperature; setting the injection pressure, the injection velocity, the injection time and the glue injection quantity of the injection molding machine in different phases; and setting the final pressure-holding pressure and the final pressure-holding velocity to reach the best injection molding process, thereby obtaining a final finished product. A plastic connector for an automobile, which is formed in a manner of injection molding of the modified nylon PA66 particle material, has the advantages of high surface finish, good toughness, high intensity, stable injection molding process, stable product quality and high percent of pass. Therefore, the production efficiency is improved, and the production cost is lowered.

Description

technical field [0001] The invention relates to the field of engineering plastics, in particular to a modified ASA-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. Among them, the connecting plugs for system signal transmission are mostly plastic plugs, and there are wire contact components inside the plastic plugs. There is a plastic connecting plug at the other end of the plastic plug. The existing plastic connecting plug is mainly made of ordinary nylon material, which is compounded by adding a toughening agent. After mixing various materials, the dispersibility of each component in the blending process Poor, poor compatibility between components, insufficient strength, toughness, corrosion resistance, high material cost, difficult demoulding, poor surface gloss, poor processing p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08L51/00C08L69/00C08L67/04C08K13/06C08K9/06C08K9/02C08K3/26C08K3/34B29B9/06B29C47/92B29C45/76B29C48/92
CPCB29C47/0011B29C2947/92895B29C2947/92885B29C47/92B29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 张强
Owner ANHUI KAIDI ELECTRIC
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