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Low-floating fiber flame-retardant reinforced PBT (Polybutylece Terephthalate) composite material

A composite material, low-floating fiber technology, used in the field of plastic modification, to achieve broad market prospects, smooth surface, and reduce the effect of surface floating fiber

Inactive Publication Date: 2014-04-02
QINGDAO DADU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional PBT products have the following problems: 1. When in use, accidents such as burning due to factors such as open flames or static electricity often occur; 2. The phenomenon of floating fibers is prone to decrease in surface smoothness during injection molding, and the appearance is poor. ,Affect
This patent avoids the floating fiber phenomenon and is flame retardant, but it is a non-reinforced product
[0006] In summary, there is no PBT composite material with low floating fiber, flame retardancy and reinforcement in the prior art

Method used

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  • Low-floating fiber flame-retardant reinforced PBT (Polybutylece Terephthalate) composite material

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific embodiments.

[0021] The technical solution of this embodiment is: a low-fiber flame-retardant reinforced PBT composite material, which is composed of the following components in mass percentage: PBT 55%~70%, toughening agent 5-15%, silane coupling agent 0.2 %~0.5%, chopped glass fiber 10%-20%, environmentally friendly flame retardant 10~15%, antioxidant 0.1%~0.5%, lubricant 0.1%~1%, floating fiber remover 0.3%~0.8% .

[0022] Wherein, the toughening agent adopts PBT-containing crystalline hard segment or polyester soft segment type.

[0023] Wherein, the toughening agent is a thermoplastic polyester elastomer.

[0024] Wherein, the environmentally friendly flame retardant uses decabromodiphenylethane and / or antimony trioxide.

[0025] Wherein, the lubricant adopts a mixture of fatty acid ester and ethylene bisstearamide, and the weight ratio of the two is 1-2:1.

[0026] Wherein, the floating fi...

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Abstract

The invention relates to a low-floating fiber flame-retardant reinforced PBT (Polybutylece Terephthalate) composite material, and belongs to the technical field of plastic modification. The material comprises the following components in percentage by weight: 55 to 70% of PBT, 5 to 15% of toughening agent, 0.2 to 0.5% of silane coupling agent, 10 to 20% of chopped glass fiber, 10 to 15% of environment-friendly fire retardant, 0.1 to 0.5% of antioxidant, 0.1 to 1% of lubricant, and 0.3 to 0.8% of floating fiber curing agent. The preparation method comprises the steps of mixing, extruding and injection molding. The prepared low-floating fiber flame-retardant reinforced PBT composite material has low floating fiber, fire retardance and reinforcement performance.

Description

technical field [0001] The invention relates to the technical field of plastic modification, in particular to a flame-retardant reinforced PBT composite material with low floating fibers. Background technique [0002] Polybutylene terephthalate (PBT for short), which belongs to the polyester series, is composed of 1,4-butanediol (1,4-Butylene glycol) and terephthalic acid (PTA) or terephthalic acid Ester (DMT) polycondensation, and a milky white translucent to opaque, crystalline thermoplastic polyester resin produced through a mixing process. Together with PET, it is collectively referred to as thermoplastic polyester, or saturated polyester. [0003] Because PBT has good heat resistance, weather resistance, chemical resistance, good electrical properties, low water absorption, and good gloss, it is widely used in electronic appliances, auto parts, machinery, household products and other fields, and PBT products are also Together with PPS, PC, POM, PA, etc., they are cal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/04C08K7/14C08K5/03C08K3/22C08K5/101C08K5/20
Inventor 赵成方
Owner QINGDAO DADU NEW MATERIAL TECH
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