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Halogen-free flame-retardant polyethylene material and preparation method thereof

A technology of flame-retardant polyethylene and polyethylene, which is applied in the field of halogen-free flame-retardant polyethylene materials and its preparation, can solve the problem of affecting the mechanical properties and processing properties of materials, low flame-retardant efficiency of flame-retardant systems, and large additions of flame retardants and other problems, to achieve the effect of good appearance, excellent comprehensive performance and low smoke emission

Inactive Publication Date: 2014-06-25
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the flame retardant of polyethylene mainly adopts the halogen / antimony trioxide system. Since the halogen flame retardants emit a large amount of toxic and corrosive hydrogen halide gas when burning, which seriously pollutes the environment, the halogen-free flame retardant polymer The research and development of ethylene has been widely concerned by domestic and foreign counterparts
The inorganic flame retardant system based on magnesium hydroxide / aluminum hydroxide / red phosphorus is a commonly used halogen-free flame retardant system, but the flame retardant efficiency of the flame retardant system is low, and the amount of flame retardant added is very large (more than 50%) , seriously affecting the mechanical properties and processing properties of the material

Method used

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Examples

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Effect test

Embodiment 1

[0018] A halogen-free flame-retardant polyethylene material, whose components are proportioned by mass percentage: polyethylene 70%, compound halogen-free flame retardant 15%, nano calcium carbonate 8%, ethylene-methyl acrylate-methyl The compound of glycidyl acrylate terpolymer (E-MA-GMA) 4%, polyethylene wax 1.5%, aluminum titanium composite coupling agent 0.5%, hindered phenol antioxidant 1010 and phosphite antioxidant 168 Compound 1%. Wherein, the compound type halogen-free flame retardant is a mixture of 50wt% amine polyphosphate (APP), 25wt% polyphosphate melamine salt (MPP) and 25wt% nano-montmorillonite.

[0019] Preparation method: (1) Weigh 50wt% of amine polyphosphate (APP), 25wt% of polyphosphate melamine salt (MPP) and 25wt% of nano-montmorillonite according to the weight ratio, and mix them uniformly to obtain a compound halogen-free The flame retardant is then dried at 80℃~85℃ for 30~45 minutes, set aside; (2) Weigh the nano calcium carbonate and aluminum titanium...

Embodiment 2

[0021] A halogen-free flame-retardant polyethylene material whose components are proportioned by mass percentage: polyethylene 55%, compound halogen-free flame retardant 28%, nano calcium carbonate 10%, ethylene-methyl acrylate-methyl Compound of glycidyl acrylate terpolymer (E-MA-GMA) 4%, polyethylene wax 1.6%, aluminum titanium composite coupling agent 0.8%, hindered phenol antioxidant 1010 and phosphite antioxidant 168 Compound 0.6%. Wherein, the compound type halogen-free flame retardant is a mixture of 50wt% amine polyphosphate (APP), 25wt% polyphosphate melamine salt (MPP) and 25wt% nano-montmorillonite.

[0022] Preparation method: (1) Weigh 50wt% of amine polyphosphate (APP), 25wt% of polyphosphate melamine salt (MPP) and 25wt% of nano-montmorillonite according to the weight ratio, and mix them uniformly to obtain a compound halogen-free The flame retardant is then dried at 80℃~85℃ for 30~45 minutes, set aside; (2) Weigh the nano calcium carbonate and aluminum titanium c...

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Abstract

The invention discloses a halogen-free flame-retardant polyethylene material and a preparation method thereof. The polyethylene material comprises following components by weight: 50-80% of polyethylene, 15-30% of a compound halogen-free flame retardant, 5-10% of a reinforcing agent, 2-5% of a compatibilizer, 0.5-2% of a lubricant, 0.1-1% of a coupling agent, and 0.1-1% of an antioxidant. Beneficial effects of the polyethylene material and the preparation method are that: compared with the prior art, the polyethylene material has good halogen-free flame retardant property (with the oxygen index being 30) and meets the UL94-0 flame retardant level standards; the material is small in fuming amount, nontoxic, free of molten droplets, and the like; the material is good in dispersibility, good in appearance, high in impacting toughness, high in tensile strength, high in heat stability and good in comprehensive performance; and the material can be widely used in the electric appliance industry, the chemical industry, the food industry, the machinery industry, and the like.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant polyethylene material and a preparation method thereof. Background technique [0002] At present, the flame retardant of polyethylene mainly adopts the halogen / antimony trioxide system. Because halogen flame retardants emit a large amount of toxic and corrosive hydrogen halide gas when they burn, they seriously pollute the environment. Therefore, halogen-free flame retardant poly The research and development of ethylene has received extensive attention from domestic and foreign counterparts. The inorganic flame retardant system based on magnesium hydroxide / aluminum hydroxide / red phosphorus is a commonly used halogen-free flame retardant system, but the flame retardant efficiency of this flame retardant system is low, and the amount of flame retardant added is large (more than 50%) , Which seriously affects the mechanical properties and process...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K3/32C08K5/3492C08K3/34C08K3/26
CPCC08L23/06C08K2201/011C08L2201/02C08L2201/22C08L2205/025C08L2205/03
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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