PBT modified nylon PA66 particle material, as well as its preparation method and application in vehicles

A technology of PA66 and particle materials, which is applied in the field of engineering plastics, can solve problems such as insufficient strength, toughness and corrosion resistance, unstable product quality, and low product qualification rate, and achieve good fluidity, excellent insulation, and high surface finish. Effect

Active Publication Date: 2013-03-20
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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  • PBT modified nylon PA66 particle material, as well as its preparation method and application in vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Prepare the nylon PA66 particle material of PBT 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 dried mixed mater...

Embodiment 2

[0046] The nylon PA66 granular material of the PBT modification that makes with embodiment 1, prepares the connector blade type plug sheath DJ7061-6.0-21 on the automobile, comprises the following steps:

[0047] (1) After mixing 25kg of PBT modified nylon PA66 particles, 30g of yellow powder and 10 titanium dioxide 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 stage is injected with a medium pressure of 45-50 Mpa 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;

[...

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Abstract

The present invention discloses a PBT modified nylon PA66 particle material, which is obtained by mixing a material A of the PBT modified nylon PA66 and a material B of the PBT modified nylon PA66, and then carrying out extrusion granulation. The present invention further discloses applications of the obtained modified nylon PA66 particle material in vehicle parts. The preparation method mainly comprises adding the dried modified material to a heated injection molding machine, setting injection pressures, speeds, injection times and glue injection amounts at different segments of the injection molding machine, and setting a final packing pressure and a packing speed to achieve an optimal injection molding process so as to obtain the final qualified product. After the modified nylon PA66 particle material is used for plastic connection devices of vehicles in the injection molding manner, advantages of high surface finish, good toughness, high strength and the like are provided, demolding is easily performed during injection molding, product quality is stable, a qualification rate is high, production efficiency is improved and production cost is reduced.

Description

technical field [0001] The invention relates to the field of engineering plastics, in particular to a modified PBT-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 car. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/00C08L67/02C08L67/04C08K13/06C08K9/06C08K9/02C08K3/26C08K3/36B29B9/06B29C47/92B29C45/76B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 张强
Owner ANHUI KAIDI ELECTRIC
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