A modified nylon composite material and its application

A nylon composite material and modification technology, which is applied in the field of nylon materials, can solve the problems of low melt fluidity requirements, poor welding compatibility, and insufficient welding strength, and achieve excellent resistance to fuel penetration, fire resistance, and sealing Good sex, avoid the effect of sharp decline

Active Publication Date: 2022-01-25
山东统亚模塑科技实业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nylon composite material in this invention is suitable for blow molding and does not require high melt fluidity, while injection molding requires materials to have good fluidity; and the nylon composite material is easily drawn due to thermal melting during the welding process. There are problems such as insufficient welding strength, welding wire drawing, and poor welding compatibility.

Method used

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  • A modified nylon composite material and its application
  • A modified nylon composite material and its application

Examples

Experimental program
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Effect test

Embodiment 9

[0040] The specific steps for preparing the combined urea fuel tank by utilizing the above-mentioned modified nylon composite material are:

[0041] (1) After the above-mentioned nylon composite material is melted, the melting temperature is 245°C-265°C, injected into the cavity of the mold through an injection molding machine, and the upper shell and the lower shell of the box are respectively obtained;

[0042] (2) After taking out the finished upper and lower shells from the mold, immediately put them into a steam incubator for cooling and forming. Preferably, the steam medium in the steam incubator is aqueous solution or potassium acetate solution, the steam temperature is 80-90°C, and the constant temperature time is 2-3h, or the steam temperature is 50-60°C, and the constant temperature time is 5-6h.

[0043] Said step (2) adopts steam at a certain temperature as the heat treatment medium during cooling molding, which is used to remove the internal stress generated in th...

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PUM

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Abstract

The invention provides a modified nylon composite material, which comprises the following components in parts by weight: 35-70 parts of nylon 6, 10-20 parts of ethylene-octene copolymer, 10-25 parts of compatibilizer, flame retardant 10 to 20 parts of additives, 0.4 to 2 parts of additives, by adding an appropriate amount of ethylene-octene copolymer and compatibilizer to nylon 6, the ethylene-octene copolymer is grafted onto nylon 6 to make it better The integration of each component; the synergistic effect between the components, ethylene-octene copolymer, flame retardant, additives and nylon 6 all have good compatibility, so that the obtained material has high melt fluidity and good Injection molding performance and welding performance. The invention also provides the application of the modified nylon composite material in preparing fuel tanks. The prepared fuel tanks have good sealing performance, excellent resistance to fuel oil penetration and fire resistance.

Description

technical field [0001] The invention relates to a modified nylon composite material and its application in preparing an integrated fuel urea tank, belonging to the field of nylon materials. Background technique [0002] With the rapid development of the automobile industry and the improvement of automobile environmental protection requirements, automobile fuel tanks and automobile urea tanks are important safety and regulatory parts in automobile parts, and their structure optimization and performance improvement have become the major automobile manufacturers. solved problem. Most of the early automobile fuel tanks were made of metal materials such as ST12 / ST14 cold-rolled steel plates, which were characterized by large volume, cheap price, easy molding, and relatively low mold cost. Most trucks still use this kind of large capacity, rigidity and Strong metal fuel tank. However, with the improvement of national IV and national V emission indicators, and the common rail sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L23/08C08K13/02C08K5/1539C08K5/3415C08K5/29C08K5/3492C08K3/22
CPCC08L77/02C08L2201/02C08L2201/08C08L2205/08C08L2205/03C08L23/0815C08K13/02C08K5/1539C08K5/3415C08K5/29C08K5/34924C08K3/2279
Inventor 朱庆凯
Owner 山东统亚模塑科技实业有限公司
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