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Halogen-free flame-retardant long fiber reinforced nylon 6 composite material and preparation method thereof

A composite material and long-fiber technology, which is applied in the field of halogen-free flame-retardant long-fiber reinforced nylon 6 composite materials and its preparation, can solve the problems that nylon 6 is easy to burn, and achieve low cost, wide material sources, and good environmental protection.

Active Publication Date: 2017-01-25
贵州凯科特材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a high-performance halogen-free flame-retardant long-fiber reinforced nylon 6 composite material and its preparation method, which solves the problem that nylon 6 is easy to burn, and effectively improves the mechanical properties of the product, and has a good environmental protection effect. At the same time, the "floating fiber" phenomenon of glass fiber reinforced nylon 6 is solved, and the preparation method is simple and easy to overcome the shortcomings of the existing technology

Method used

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  • Halogen-free flame-retardant long fiber reinforced nylon 6 composite material and preparation method thereof

Examples

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Embodiment 1

[0015] Example 1 of the present invention: Halogen-free flame-retardant long-fiber reinforced nylon 6 composite material, calculated in parts by mass, including 90 parts of nylon 6, 45 parts of fiber, 10 parts of compatibilizer, 1 part of antioxidant, 30 parts of no Halogenated flame retardant, 10 parts of synergist, 20 parts of char-forming agent and 2 parts of dispersant; described fiber is glass fiber; described compatibilizer is styrene-maleic anhydride copolymer; described The halogen-free flame retardant is aluminum phenylphosphinate; the synergist is quaternary phosphorus salt intercalation montmorillonite; the silicon-modified phenolic char-forming agent, and the dispersant is pentaerythritol stearin esters.

[0016] The preparation method of halogen-free flame-retardant long-fiber reinforced nylon 6 composite material is to get 40 parts of nylon 6 and 5 parts of compatibilizer to dry for standby, and mix the above-mentioned dried nylon 6 and compatibilizer and 0.5 par...

Embodiment 2

[0017] Example 2 of the present invention: Halogen-free flame-retardant long-fiber reinforced nylon 6 composite material, calculated in parts by mass, including 80 parts of nylon 6, 50 parts of fiber, 12 parts of compatibilizer, 0.8 part of antioxidant, 25 parts of no Halogenated flame retardant, 12 parts of synergist, 22 parts of char-forming agent and 1 part of dispersant; described fiber is ramie fiber; described compatibilizer is styrene-maleic anhydride copolymer; described The halogen-free flame retardant is aluminum phenylphosphinate; the synergist is quaternary phosphorus salt intercalation montmorillonite; the silicon-modified phenolic char-forming agent, and the dispersant is pentaerythritol stearin esters.

[0018] The preparation method of halogen-free flame-retardant long-fiber reinforced nylon 6 composite material is to get 45 parts of nylon 6 and 6 parts of compatibilizer to dry for subsequent use, and mix the above-mentioned dried nylon 6 and compatibilizer and...

Embodiment 3

[0019] Example 3 of the present invention: Halogen-free flame-retardant long-fiber reinforced nylon 6 composite material, calculated in parts by mass, including 100 parts of nylon 6, 40 parts of fiber, 8 parts of compatibilizer, 1.2 parts of antioxidant, 35 parts of no Halogen flame retardant, 8 parts of synergists, 17 parts of char-forming agent and 3 parts of dispersant; Described fiber is bamboo fiber; Described compatibilizer is styrene-maleic anhydride copolymer; Described The halogen-free flame retardant is aluminum phenylphosphinate; the synergist is quaternary phosphorus salt intercalation montmorillonite; the silicon-modified phenolic char-forming agent, and the dispersant is pentaerythritol stearin esters.

[0020] The preparation method of halogen-free flame-retardant long-fiber reinforced nylon 6 composite material is to get 55 parts of nylon 6 and 4 parts of compatibilizer to dry for standby, and mix the above-mentioned dried nylon 6 and compatibilizer and 0.6 par...

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Abstract

The invention discloses a halogen-free flame-retardant long-fiber-reinforced nylon 6 composite material. Nylon 6 is taken as matrix resin, SMA (styrene maleic anhydride) is taken as a compatilizer which reinforces the binding force between the matrix resin and fiber, and one-step method is adopted for preparation of the halogen-free flame-retardant long-fiber-reinforced nylon 6 composite material; and according to the preparation method, continuous fiber is impregnated by the matrix resin through an impregnation mold, an impregnation bar is coated with a matrix melt, containing a halogen-free flame retardant, in a coating mold, then cooling and traction are performed, and finally, the material is cut to required length by a granulator. The production technology is simple, a prepared product has excellent mechanical properties and is quite environment-friendly, and the problem of a floating fiber phenomenon when nylon is reinforced by glass fiber is solved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant long-fiber reinforced nylon 6 composite material and a preparation method thereof. Background technique [0002] Nylon 6 is an engineering plastic widely used in industries such as automobiles, electronics, and decoration. Due to its special chemical structure, pure nylon 6 can produce a large number of molten droplets to take away heat and substances during the combustion process, so it has a certain self-extinguishing performance during the combustion process. However, this self-extinguishing effect does not appear in nylon 6 composites, and the droplet self-extinguishing mechanism in reinforced nylon 6 composites will lose its effect on flame retardancy due to the 'candle wick effect'. Therefore, it needs to be flame-retardant modified; in today's society, people's safety awareness is improving, and the country's environmental protecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L35/06C08L97/02C08K13/06C08K9/04C08K7/14C08K5/5313C08K3/34C08K5/103
CPCC08L77/02C08L2201/02C08L2201/22C08L2205/03C08L2205/08C08L2205/16C08L35/06C08K13/06C08K7/14C08K9/04C08K9/00C08K3/346C08K5/103C08L97/02
Inventor 张道海何敏于杰秦舒浩郭建兵瞿进张翔
Owner 贵州凯科特材料有限公司