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Halogen-free flame-retardant reinforced semi-aromatic polyamide molding composition with specific glass fiber length and molded product

A polyamide molding, semi-aromatic technology, used in the field of polymer blending and modification, to achieve high melting index, good water absorption and dimensional stability, and not easy to corrode.

Active Publication Date: 2021-04-27
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Achieving the fire protection class UL94V-0 is a particular challenge for glass fiber reinforced polyamide molding compositions

Method used

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  • Halogen-free flame-retardant reinforced semi-aromatic polyamide molding composition with specific glass fiber length and molded product
  • Halogen-free flame-retardant reinforced semi-aromatic polyamide molding composition with specific glass fiber length and molded product
  • Halogen-free flame-retardant reinforced semi-aromatic polyamide molding composition with specific glass fiber length and molded product

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Embodiment Construction

[0135] Hereinafter, various embodiments of the present disclosure will be described more fully. The present disclosure is capable of various embodiments, and adaptations and changes are possible therein. It is to be understood, however, that there is no intention to limit the various embodiments of the present disclosure to the particular embodiments disclosed herein, but that the present disclosure be construed to cover those falling within the spirit and scope of various embodiments of the present disclosure. All adjustments, equivalents and / or alternatives.

[0136] Hereinafter, the terms "comprising" or "may include" that may be used in various embodiments of the present disclosure indicate the presence of disclosed functions, operations, or elements, and do not limit the existence of one or more functions, operations, or elements. Increase. In addition, as used in various embodiments of the present disclosure, the terms "comprising", "having" and their cognates are only...

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Abstract

The invention discloses a halogen-free flame-retardant reinforced semi-aromatic polyamide molding composition with a specific glass fiber length and a molded product. The molding composition consists of the following components: (A) 25-90 parts of at least one semi-aromatic polyamide resin; (B) 5-60 parts of glass fibers having an arithmetic mean length of 200 [mu]m to 420 [mu]m; (C) 5-25 parts of at least one phosphinate and / or at least one diphosphinate; and (D) 0-40 parts of an additive. Compared with a molding composition of glass fibers with an arithmetic average length of 200 [mu]m to 500 [mu]m, the halogen-free flame-retardant reinforced semi-aromatic polyamide molding composition with the specific glass fiber length provided by the invention has improved water absorption and dimensional stability after water absorption, and therefore, the molded product made of the molding composition according to the invention can be used in specific applications in the electrical industry and the electronics industry, especially in the fields with precision component requirements.

Description

technical field [0001] The invention belongs to the field of polymer blending modification, and in particular relates to a flame-retardant polyamide molding composition, and also relates to a molded article of the composition. Background technique [0002] Polyamide is widely used because of its good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, low coefficient of friction, certain flame retardancy, and easy processing. It is suitable for filling and modifying with glass fiber and other fillers to improve performance and expand application range. In recent years, semi-aromatic polyamides have been focused on development due to their better heat resistance and mechanical properties. [0003] In some applications plastics are subject to stringent requirements related to their flame retardancy. Providing flame retardancy to plastics is especially necessary for use in electronic devices du...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K13/04C08K7/14C08K3/32C08K3/38C08K5/098C08J5/04
CPCC08J5/043C08K2201/004C08J2377/06C08K13/04C08K7/14C08K3/32C08K2003/387C08K5/098
Inventor 张传辉王道波黄险波叶南飚曹民姜苏俊
Owner KINGFA SCI & TECH CO LTD