Low-cost high-flame-retardant reinforced polyamide and preparation method for same

A technology of high flame retardant and polyamide, which is applied in the field of low-cost high flame retardant reinforced polyamide and its preparation, can solve the problems of difficulty in reducing the cost of flame retardant materials and rising prices, and achieve excellent mechanical properties, reduced dosage, and good surface Effect

Inactive Publication Date: 2012-07-25
SHENZHEN KEJU NEW MATERIAL
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Problems solved by technology

The invention further points out that antimony synergists are oxides of antimony such as antimony trioxide, antimony tetroxide, and antimony pentoxide. At present, because the halogen-containing flame retardants used as flame retardants can produce toxic gas hydrogen halides when burned , Therefore, the industry is improving the halogen-containing flame retardant of the main flame retardant, and has introduced a lot of halogen-fre

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  • Low-cost high-flame-retardant reinforced polyamide and preparation method for same

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[0029] The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited to the scope described in the examples.

[0030] The raw materials adopted in the following examples 1-5 are respectively:

[0031] The nylon resin is polycaprolactam PA6 YH700 from Yueyang Petrochemical.

[0032] The main flame retardant is Nantong Chemical America Albemarle BPS621.

[0033] The first flame retardant synergist is a stannate composite flame retardant.

[0034] The first flame retardant synergist is ultrafine magnesium silicate LX-999.

[0035] The glass fiber is Taishan long glass fiber T635B.

[0036] The toughening and solubilizing agent is POE-g-MAH.

[0037] Antioxidant is 1098,168.

[0038] The lubricant is zinc stearate, TAF.

[0039] The nucleating agent is long-chain carboxylic acid calcium salt CAV102.

[0040] The proportioning in embodiment 1-5 is as shown in table 1.

[0041] During ...

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Abstract

The invention discloses a low-cost high-flame-retardant reinforced polyamide and a preparation method for the same. Components of the low-cost high-flame-retardant reinforced polyamide comprise, in weight percentage (%), 40-60% of nylon resin, 10-25% of main flame retardant, 1-15% of stannate composite flame retardant and superfine silicon-magnesium acid salt synergistic flame retardant, 10-40% of glass fibers, 0-4% of toughening solubilizer, 0.2-0.4% of antioxidant, 0.4-0.8% of lubricant and 0.2-0.4% of nucleating agent. The preparation method includes the steps: premixing according to the proportion of the formula, then extruding the mixture by a double-screw extruder according to designated process, granulating, cooling and drying so that the flame-retardant reinforced polyamide is prepared. The flame-retardant polyamide is high in strength, capable of achieving UL94V0 flame retardance, high in glow wire and particularly low in cost and high in transparency, and the surface of the polyamide is good to be easy in forming processing.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a low-cost high flame-retardant reinforced polyamide and a preparation method thereof. The raw materials of the high flame-resistant reinforced polyamide product do not contain antimony-based flame retardants such as antimony trioxide. Background technique [0002] With the rapid development of domestic electronics, electrical, communication, and home appliance industries, the demand for polyamide (PA, commonly known as nylon) is increasing. Commonly used ones such as PA66 and PA6 have an oxygen index of 24.3% and 26.4% respectively, which poses a fire hazard. Therefore, when PA is used in electrical-related products, flame-retardant modification is required. Among them, environmentally friendly bromine and antimony-based flame-retardant reinforced polyamides are the most widely used. Chinese Patent No. 200480012577 discloses a flame-retardant polyamide composition. In this compo...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L25/06C08L51/06C08K13/04C08K7/14C08K5/03C08K3/24C08K3/34B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/625B29C48/92B29C2948/92561B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 徐东徐永程必舒
Owner SHENZHEN KEJU NEW MATERIAL
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