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Halogen-free reinforced flame-retardant polyamide composite material and application thereof

A composite material and polyamide technology, applied in the field of halogen-free reinforced flame-retardant polyamide composite materials, polyamide composite materials, polyamide composite materials, to achieve good comprehensive mechanical properties, good heat and gas barrier effects

Active Publication Date: 2017-08-11
BENSONG ENG PLASTICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a halogen-free flame-retardant reinforced polyamide composite material. Through the reasonable design of the phosphate flame-retardant system, the composite material does not need to add a nitrogen source, and ensures excellent flame-retardant properties of the material. Under the premise of high performance, it can achieve molding processing temperature up to 320℃, no flame retardant decomposition or precipitation, no product gas marks, white spots or blockage of mold exhaust and other problems, and there is no occurrence of flame retardant decomposition Excessive acidic environment leads to depolymerization of polyamide materials and reduces product strength

Method used

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  • Halogen-free reinforced flame-retardant polyamide composite material and application thereof
  • Halogen-free reinforced flame-retardant polyamide composite material and application thereof

Examples

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Embodiment 1～11

[0049] Weigh the corresponding formula components according to the formula table in Table 1, dry the weighed polyamide resin to a moisture content of ≤0.2%, mix it with other components except the reinforcing filler, and feed it from the main feeding port of the extruder Blanking, the glass fiber is fed from the side feed port, extruded, drawn, cooled, dried, and pelletized to obtain an ultra-low precipitation and high glow filament polyamide composite material for injection molding.

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Abstract

The invention discloses a halogen-free reinforced flame-retardant polyamide composite material and application thereof. The composite material comprises, by weight, 35 to 64 parts of polyamide, 10 to 50 parts of a reinforcing filling material and 14 to 25 parts of a composite fire retardant, wherein the composite fire retardant is a compound of alkyl phosphinate, metal polyphosphate and a silicon-containing compound. The halogen-free reinforced flame-retardant polyamide composite material provided by the invention has a flame retardation grade of UL94 V0, GWIT 850 DEG C and GWFI 1960 DEG C, and has good comprehensive mechanical properties. The halogen-free reinforced flame-retardant polyamide composite material prepared in the invention can endure a molding temperature of 320 DEG C. The halogen-free reinforced flame-retardant polyamide composite material provided by the invention is applicable to the fields of electrical and electronics technology, electric tools, automobiles, machinery, instruments, aerospace and national defense and military industry.

Description

technical field [0001] The invention relates to a polyamide composite material, in particular to a halogen-free reinforced flame-retardant polyamide composite material and the application of the polyamide composite material, belonging to the field of polymer materials. Background technique [0002] As the largest variety among the five general-purpose engineering plastics, polyamide has a good affinity with glass fiber. After being strengthened by glass fiber, not only the mechanical properties and heat resistance are greatly improved, but also its fluidity is sensitive to temperature, suitable for injection molding Complex structural parts or large structural parts, polyamides are widely used in automobiles, low-voltage electrical appliances, road traffic, etc. [0003] When plastic materials are used in electrical current-carrying parts, they must have certain flame-retardant properties. Although many polyamide resin varieties are self-extinguishing, when used as electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L77/10C08K13/04C08K7/14C08K5/5313C08K3/32C08K3/34
CPCC08K3/32C08K3/34C08K3/346C08K5/5313C08K7/14C08K13/04C08K2201/014C08L77/02C08L77/06C08L77/10C08L2201/02C08L2201/22C08L2205/02C08L77/00C08L39/06
Inventor 曾昭礼陈光辉周永松徐淑芬
Owner BENSONG ENG PLASTICS HANGZHOU