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Halogen-free flame-retardant polyethylene composite material with high mechanical performances and preparation method thereof

A technology of flame retardant polyethylene and mechanical properties, applied in the field of high mechanical properties halogen-free flame retardant polyethylene composite material and its preparation, can solve the problems affecting the mechanical properties and processing properties of materials, the low flame retardant efficiency of the flame retardant system, and the flame retardant To avoid problems such as large dosage of additives, to achieve the effect of good appearance, good dispersibility, and small amount of smoke

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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Comparison scheme
Effect test

Embodiment 1

[0017] A halogen-free flame-retardant polyethylene composite material with high mechanical performance, its components are: 60% polyethylene, 24% aluminum hydroxide, 6% microencapsulated red phosphorus, 5% talc, ethylene- Methyl acrylate-glycidyl methacrylate terpolymer (E-MA-GMA) 2%, polyethylene wax 1.5%, silane coupling agent 0.5%, hindered phenol antioxidant 1010 and phosphite antioxidant Agent 168 compound 0.5%, colorant 0.5%.

[0018] Preparation method: (1) Weigh talc powder and silane coupling agent according to the weight ratio, add them into a high-speed mixer and mix evenly, the temperature is 80°C-100°C, and the mixing time is 10-30 minutes to obtain surface-treated talc powder, and then add polyethylene, aluminum hydroxide, microencapsulated red phosphorus, ethylene-methyl acrylate-glycidyl methacrylate terpolymer (E-MA-GMA), polyethylene The compound and pigment of wax, hindered phenol antioxidant 1010 and phosphite antioxidant 168 shall be mixed at 100℃~120℃ fo...

Embodiment 2

[0020] A halogen-free flame-retardant polyethylene composite material with high mechanical properties, its components are: 70% polyethylene, 18% polyphosphate amine, 4% zinc borate, 4% talcum powder, polyethylene grafted horse 2% toric anhydride (PE-g-MAH), 1% OP wax, 0.4% aluminum-titanium composite coupling agent, 0.6% compound of hindered phenol antioxidant 1010 and phosphite antioxidant 168.

[0021] Preparation method: (1) Weigh talcum powder and aluminum-titanium composite coupling agent according to the weight ratio, add them into a high-speed mixer and mix evenly, the temperature is 80°C-100°C, and the mixing time is 10-30 minutes to obtain a good surface treatment Talc powder, then add polyethylene, polyphosphate amine, zinc borate, polyethylene grafted maleic anhydride (PE-g-MAH), OP wax and hindered phenol antioxidant 1010 and phosphorous acid For the compound of ester antioxidant 168, continue mixing for 15-20 minutes at a temperature of 100°C-120°C; (2) Put the ab...

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Abstract

The invention discloses a halogen-free flame-retardant polyethylene composite material with high mechanical performances and a preparation method thereof. The composite material comprises following components by weight: 60-75% of polyethylene, 16-32% of a halogen-free flame retardant, 4-8% of an assist flame retardant, 3-8% of talcum powder, 1-3% of a compatibilizer, 0.5-2% of a dispersant, 0.1-1% of a coupling agent, 0.1-1% of an antioxidant and 0-1% of a pigment. Beneficial effects of the composite material and the preparation method thereof are that: compared with the prior art, the composite material is good in halogen-free flame retardant property (with the oxygen index reaching 30) and meets the UL94-0 flame retardant grade standards; the composite material is low in fuming amount, nontoxic, free of molten droplets, and the like; and the composite material is high in dispersibility, good in appearance, high in impact strength (39.5-40.8 kJ / m2), high in tensile strength (with the breaking elongation being larger than 180%), high in heat resistance, and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high mechanical performance halogen-free flame-retardant polyethylene composite material and a preparation method thereof. Background technique [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 m...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L75/04C08K13/06C08K9/04C08K9/06C08K3/34C08K3/22C08K3/32C08K3/38C08K9/10C08K3/02
CPCC08L23/06C08L2201/02C08L2201/22C08L2205/025C08L2205/03
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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