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Polyamide composition suitable for liquid assisted molding and preparation method thereof

A polyamide composition and auxiliary molding technology, applied in the field of polymer materials, can solve the problems of deterioration of weather resistance, unsatisfactory performance of improving appearance and improving fluidity, etc.

Pending Publication Date: 2021-02-19
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of nylon components with an aromatic structure, the weather resistance is deteriorated, and the performance of improving appearance and fluidity is not ideal.

Method used

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  • Polyamide composition suitable for liquid assisted molding and preparation method thereof
  • Polyamide composition suitable for liquid assisted molding and preparation method thereof
  • Polyamide composition suitable for liquid assisted molding and preparation method thereof

Examples

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Embodiment Construction

[0053] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0054] Each raw material used in the embodiment and comparative example of table 1 is as follows:

[0055] Grade supplier PA6 M2400 Guangdong Xinhui Meida PA66 / 6 EP158 Zhejiang Huafeng PA56 self made / PAD6 self made / PA6I6T Selar PA3426 dupont antioxidant Antioxidant 1098 BASF Processing Antioxidant PEP-36 ADK lubricant A-C540A Honeywell H...

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Abstract

The invention relates to a polyamide composition suitable for liquid assisted molding and a preparation method thereof. The polyamide composition comprises first polyamide, second polyamide, a filler,a flame retardant and other components. According to the invention, the second polyamide is introduced, so that a product produced by liquid assisted molding has a smooth inner wall, does not interfere with the transmission of a medium, has uniform wall thickness, has remarkably improved weather resistance, and has a good market application prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a polyamide composition suitable for liquid-assisted molding and a preparation method thereof. Background technique [0002] Glass fiber reinforced polyamide is often used as structural parts or parts for liquid storage and transportation, and usually has hollow parts, but the use of glass fibers will cause floating fibers and uneven surfaces, which is not conducive to the appearance and aesthetics, but also damages the function of the parts, especially for The function of storage and transportation of liquids. Such applications include the application of automotive air, coolant, and fuel pipes, which require excellent appearance and smooth inner surfaces to ensure uninterrupted media transmission. Liquid-assisted injection molding is to inject a sufficient amount of melt into a mold cavity of a specified shape, and then inject a liquid, usually water, into the uncooled melt thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08K7/14C08K3/04C08K5/20C08K13/04
CPCC08L77/02C08L77/06C08L2205/02C08L2203/18C08K7/14C08K3/04C08K5/20C08K13/04
Inventor 丁正亚张超林洁龙徐洪耀肖军华王飞叶士兵刘纪庆安朋邱志强吴鹏
Owner SHANGHAI KINGFA SCI & TECH
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