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Volcanic modified nylon PA66 granular material and preparation method and application thereof to automobiles

A technology of PA66 and volcanic rock, which is applied in the field of nylon PA66 particle material and its preparation, can solve problems such as insufficient strength, toughness and corrosion resistance, unstable product quality, and influence on automobile performance, and achieve good fluidity, excellent insulation, and product quality stable effect

Inactive Publication Date: 2013-03-27
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 connectors and connectors on automobiles are made of nylon. The existing plastic connectors are mainly made of ordinary nylon materials, which are compounded by adding toughening agents. After mixing various materials, the dispersibility of each component is poor during the blending process, the compatibility between each component is poor, the strength, toughness, and corrosion resistance are insufficient, the material cost is high, the demoulding is difficult, the surface gloss is poor, and the processing Poor performance leads to unstable product quality, low product qualification rate, and reduces economic efficiency, thus affecting the performance of the car

Method used

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  • Volcanic modified nylon PA66 granular material and preparation method and application thereof to automobiles

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Experimental program
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Effect test

Embodiment 1

[0031] The nylon PA66 granular material that prepares volcanic rock modification, concrete steps are:

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

[0033] Weigh nylon PA66 50, ASA resin 15, PBT 15, 3-aminopropyltrimethoxysilane 0.2, methyltriethoxysilane 0.4, antioxidant 1010 0.2, anti-ultraviolet agent 0.3, polycaprolactone 2 , polyethylene wax 1.5, modified nano powder 8,

[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 0.3%, the drying ends;

[0037] The drie...

Embodiment 2

[0046] With the nylon PA66 granular material that the volcanic rock modification that embodiment 1 makes, prepares the connector socket sheath DJ7021-4.8-20-1 on the automobile, comprises the following steps:

[0047] (1) Add 25kg of volcanic rock-modified nylon PA66 particles into the dryer, and dry 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 stage is injected with a medium pressure of 45-55 Mpa and a medium speed of 55-65m / 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 second stage is injected with a medium pre...

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Abstract

The invention discloses a volcanic modified nylon PA66 granular material which is prepared by mixing the material A and material B of volcanic modified nylon PA66 and then performing extrusion granulation. The invention also discloses an application of the obtained modified nylon PA66 granular material to automobile parts. The application mainly comprises the steps of adding dried modified material into a heated injection molding machine and setting the injection pressure, speed, injection time and injection glue amount in different stages of the injection molding machine and setting the final pressure maintaining pressure and pressure maintaining speed to meet the optimal injection molding technology to obtain a final qualified product. A plastic connector injection-molded from the modified nylon PA66 granular material disclosed by the invention for automobiles has the advantages of high surface finish, good toughness, high strength and the like; and demoulding is particularly easy to perform in injection molding, the product quality is stable, the qualified rate is high, 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 volcanic rock-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 connectors and connectors on automobiles are made of nylon. The existing plastic connectors are mainly made of ordinary nylon materials, which are compounded by adding toughening agents. After mixing various materials, the dispersibility of each component is poor during the blending process, the compatibility between each component is poor, the strength, toughness, and corrosion resistance are insufficient, the material cost is high, the demoulding is difficult, the surface gloss is poor, and the processing Poor performance leads to unstable product quality, low product qualification rate, and reduces economic efficiency, thereby affecting the performance of the ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/00C08L67/02C08L67/04C08L23/06C08K13/06C08K9/06C08K9/04C08K9/02C08K7/14C08K3/34C08K3/26C08K5/5419C08K5/20B29C47/92B29C45/76B29C48/92
CPCB29C48/022
Inventor 张强
Owner ANHUI KAIDI ELECTRIC