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Special halogen-free environment-friendly flame retardant for polypropylene

A polypropylene and flame retardant technology, applied in the field of flame retardants, can solve the problems of poor compatibility, large addition amount, and decline in polymer properties, and achieve the effect of high mechanical properties

Active Publication Date: 2012-07-18
JINAN TAIXING FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common halogen-free flame retardants have problems such as low flame retardant efficiency and poor compatibility with polypropylene, resulting in a large amount of addition when reaching the corresponding level, and serious degradation of polymer performance. Large-scale promotion

Method used

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  • Special halogen-free environment-friendly flame retardant for polypropylene

Examples

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Comparison scheme
Effect test

Embodiment 1

[0016] A halogen-free environmentally friendly flame retardant applied to polypropylene, made of the following raw materials in parts by weight: epoxy resin coated ammonium polyphosphate 47, poly 2-ethylenediamine-4-phenoxy-1, 3,5-triazine 38, nano-montmorillonite 10, zinc oxide 4, pure powder polytetrafluoroethylene 1, polymethylphenylsiloxane 2.

[0017] Preparation method: Weigh the raw materials according to the above parts by weight, coat epoxy resin with ammonium polyphosphate, poly 2-ethylenediamine-4-phenoxy-1,3,5-triazine, nano-montmorillonite, oxidized Add zinc and pure powder polytetrafluoroethylene into a high-speed mixer and mix at high speed, heat up to 85°C, add polymethylphenylsiloxane, lower the temperature and cool to 40°C, crush, sieve, and pack to obtain the product of the present invention .

[0018] The obtained product halogen-free environmentally friendly flame retardant was applied to polypropylene, and compared with the flame retardant effect of the ...

Embodiment 2

[0024] A special halogen-free environmentally friendly flame retardant for polypropylene, made of the following raw materials in parts by weight: epoxy resin coated ammonium polyphosphate 45, polyethylene terephthalamide 37.8, 4A molecular sieve 11, magnesium oxide 5 , Pure powder polytetrafluoroethylene 1.2, polymethylphenylsiloxane 3.5.

[0025] Preparation method: Weigh the raw materials according to the above weight parts, add epoxy resin-coated ammonium polyphosphate, polyethylene terephthalamide, 4A molecular sieve, magnesium oxide and pure powder polytetrafluoroethylene into a high-speed mixer Mix, heat up to 90°C, add polymethylphenylsiloxane, lower the temperature and cool to 45°C, then pulverize, sieve, and package to obtain the product of the present invention.

Embodiment 3

[0027] A special halogen-free environmentally friendly flame retardant for polypropylene, made of the following raw materials in parts by weight: silane-coated ammonium polyphosphate 58, tripentaerythritol 30, aluminum magnesium silicate 8, zinc borate 3, pure powder type polytetrafluoroethylene Vinyl 1, Polymethylphenylsiloxane 4.

[0028] Preparation method: Weigh the raw materials according to the above weight parts, add silane-coated ammonium polyphosphate, tripentaerythritol, aluminum magnesium silicate, zinc borate and pure powder polytetrafluoroethylene into a high-speed mixer and mix at high speed, heat up to 120°C, Add polymethylphenylsiloxane, lower the temperature and cool to 50°C, then pulverize, sieve and pack to obtain the product of the present invention.

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Abstract

The invention discloses a special halogen-free environment-friendly flame retardant for polypropylene, belonging to the technical field of flame retardants. The flame retardant is prepared by the following raw materials in parts by weight: 45-60 parts of coated ammonium polyphosphate, 30-40 parts of high-efficiency char forming agent, 8-12 parts of synergistic char forming agent, 3-5 parts of char forming promoter, 0.8-1.2 parts of anti-drop agent and 0.5-4 parts of surfactant. A preparation method of the halogen-free environment-friendly flame retardant comprises the following steps: weighing the raw materials according to parts by weight; adding the coated ammonium polyphosphate, the high-efficiency char forming agent, the synergistic char forming agent, the char forming promoter and the anti-drop agent into a high-speed mixer for mixing at a high speed; heating to be 80-120 DEG C; adding the surfactant; reducing the temperature and cooling to be 40-50 DEG C; and grinding, screening and packaging to obtain the halogen-free environment-friendly flame retardant. Compared with a bromine-stibium flame retardant, the halogen-free environment-friendly flame retardant contains no halogen and can enable the polypropylene to have better flame retardance and mechanical property.

Description

technical field [0001] The invention relates to a flame retardant, in particular to a halogen-free and environment-friendly flame retardant applied to polypropylene. Background technique [0002] Polypropylene (PP) is one of the resins with the largest output in the world. It has excellent properties such as non-toxicity, low density, easy processing, chemical corrosion resistance and good electrical insulation. They are widely used in packaging, textiles, building materials, automobiles, electronics / electrical appliances, office supplies and many other industries. Especially in recent years, the global polypropylene market has grown at an average annual rate of 5%-6%. However, polypropylene is extremely flammable (the oxygen index is only 18), and it will produce strong oxidative cracking during combustion, reducing the molecular weight to 1 / 3 to 1 / 4 of the initial molecular weight, resulting in molten droplets during the combustion process, which can easily cause fires A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/10C08K3/32
Inventor 牛民卜付文辉牛淑青
Owner JINAN TAIXING FINE CHEM
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