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Weather-resistant halogen-free and flame retardant reinforced nylon material and preparation method

A nylon and weather-resistant technology, applied in the field of flame-retardant polymer materials, can solve the problems of easy surface precipitation and degradation, easy aging and discoloration of products, poor thermal stability, etc., and achieves good thermal stability and anti-yellowing aging effect. , the effect of improving flame retardancy

Inactive Publication Date: 2019-03-29
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of weather-resistant halogen-free flame-retardant reinforced nylon material and its preparation method, by adopting medium and low viscosity PA66, PA6 (viscosity 2.0-2.6) and compatibilizer to adjust its fluidity and toughness, adding compound type The blending and melting of halogen-free flame retardants, antioxidants, light stabilizers and ultraviolet absorbers solves the problem of poor thermal stability during product processing in the prior art, and the products are prone to surface precipitation and degradation when they are injection molded into parts. And technical problems such as aging and discoloration when the product is used outdoors

Method used

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  • Weather-resistant halogen-free and flame retardant reinforced nylon material and preparation method
  • Weather-resistant halogen-free and flame retardant reinforced nylon material and preparation method

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Embodiment 1

[0025] The invention discloses a weather-resistant halogen-free flame-retardant reinforced nylon material, which comprises the following components by weight percentage:

[0026] PA66 20-30%, PA6 10-25%, A-type halogen-free flame retardant 5-10%, B-type halogen-free flame retardant 3-8%, compatibilizer 3-10%, glass fiber 20-30% , lubricant 0.5-1.5%, composite antioxidant 0.3-1.0%, light stabilizer 0.3-1.0%, ultraviolet absorber 0.4-1.2%.

[0027] Among them, the relative viscosity of PA66 and PA6 is 2.0-2.6.

[0028] Among them, the A-type halogen-free flame retardant is an organic hypophosphite flame retardant, and the B-type halogen-free flame retardant is guanidine sulfamate.

[0029] Wherein, the compatibilizer is one of polyolefin elastomer grafted maleic anhydride (POE-g-MAH) or ethylene-propylene-diene rubber grafted maleic anhydride (EPDM-g-MAH) copolymer or a mixture thereof.

[0030] Wherein, the glass fiber is chopped glass fiber, and the lubricant stearamide lubr...

Embodiment 2

[0039] The present embodiment is based on embodiment 1, carries out experimental comparison explanation for the formula disclosed in embodiment 1, has set up some experimental groups, specifically as follows:

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Abstract

Relating to the technical field of flame retardant high polymer materials, the invention discloses a weather-resistant halogen-free and flame retardant reinforced nylon material and a preparation method. The method has good processing thermal stability, adopts a bilateral feeding process and a compound antioxidant system, halogen-free flame retardants and glass fiber are fed from different side feeding ports respectively, thus strengthening the miscibility of glass fiber and the halogen-free flame retardants, at the same time reducing the residence time of the halogen-free flame retardants inan extruder, effectively strengthening the dispersion of the flame retardants, reducing the surface precipitation of the flame retardants, and improving the flame retardance of the material. At the same time, the use of a compound antioxidant increases the stability of the product production process, the product is in natural color specification, and has good compatibility with toner and color masterbatch, also has good yellowing and aging resistant effects when used outdoors for a long time after color being made into various colors by color blending, and has no obvious color change.

Description

technical field [0001] The invention relates to the technical field of flame-retardant polymer materials, in particular to a weather-resistant halogen-free flame-retardant reinforced nylon material and a preparation method thereof. Background technique [0002] Nylon (polyamide, PA) has excellent mechanical properties. It was launched by DuPont (DuPont) in 1930, and then through various modifications such as reinforcement, toughening, and flame retardancy, nylon products meet the needs of various fields. It has become the engineering plastic with the largest output and the widest range of applications in the world. Halogen flame retardants have always been the largest class of chemical flame retardants in the world because of their high flame retardant efficiency, moderate price and wide range of applications. However, with the development of society, people pay more and more attention to environmental protection, especially the halogen-free flame-retardant nylon, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L51/06C08L51/04C08K13/04C08K7/14C08K5/435C08K5/20C08J5/04
CPCC08J5/043C08J2377/02C08J2377/06C08J2451/04C08J2451/06C08J2477/02C08J2477/06C08K5/20C08K5/435C08K7/14C08K13/04
Inventor 陈东明刘凯谢振中范丽园张煜霖王腾
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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