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Silicon-nitrogen flame-retardant modified polyethylene material and preparation method thereof

A silicon-nitrogen flame retardant, polyethylene technology, applied in the direction of fire-resistant coatings, etc., can solve the problems of poor flame resistance, easy to burn fire, etc., and achieve the effects of environmental friendliness, long-lasting flame retardant effect, and excellent flame retardant performance.

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

At the same time, polyethylene has the disadvantage of poor flame resistance. Sometimes the cables made of it are easy to burn and cause fires under high temperature, heat generation, discharge and other conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A silicon-nitrogen flame-retardant modified polyethylene material, the components of which are: 68% polyethylene, 18% silicon-nitrogen flame retardant, ethylene-methyl acrylate-glycidyl methacrylate terpolymer (E-MA-GMA) 8%, hydrotalcite 4%, polyethylene wax 1.5%, hindered phenol antioxidant 1010 and phosphite antioxidant 168 compound 0.5%. Wherein, the silicon nitrogen flame retardant is a silicon nitrogen-containing polymer polyether polyol.

[0015] Preparation method: according to the weight ratio, add each component into a high-speed mixer with a speed of more than 1000 rpm and mix thoroughly for 15 to 30 minutes, then add the mixed materials into a twin-screw extruder to fully melt and blend, and the melting temperature Control at 180°C-230°C, screw speed at 150-600 rpm, shear and knead by twin-screw extruder for 10-15 minutes, then extrude, cool, granulate, dry, and pack to obtain the product Invented silicon nitrogen flame retardant modified polyethylene materi...

Embodiment 2

[0017] A silicon-nitrogen flame-retardant modified polyethylene material, the components of which are: 78% polyethylene, 12% silicon-nitrogen flame retardant, maleic anhydride grafted polyethylene (PE-g-MAH) 5 %, 3% rare earth stearate, 1% OP wax, 1% compound of hindered phenol antioxidant 1076 and phosphite antioxidant 168. Wherein, the silicon nitrogen flame retardant is a silicon nitrogen-containing polymer polyether polyol.

[0018] Preparation method: according to the weight ratio, add each component into a high-speed mixer with a speed of more than 1000 rpm and mix thoroughly for 15 to 30 minutes, then add the mixed materials into a twin-screw extruder to fully melt and blend, and the melting temperature Control at 180°C-230°C, screw speed at 150-600 rpm, shear and knead by twin-screw extruder for 10-15 minutes, then extrude, cool, granulate, dry, and pack to obtain the product Invented silicon nitrogen flame retardant modified polyethylene material.

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PUM

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Abstract

The invention discloses a silicon-nitrogen flame-retardant modified polyethylene material and a preparation method thereof. The material comprises following components by weight: 50-80% of polyethylene, 12-20% of a silicon-nitrogen flame retardant, 5-10% of a compatibilizer, 2-5% of a stabilizer, 0.5-2% of a dispersant and 0.1-1% of an antioxidant. Beneficial effects of the modified polyethylene material and the preparation method thereof are that: compared with the prior art, the modified polyethylene material is good in flame retardant property (with the oxygen index being higher than 31) and meets the UL-94-0 flame retardant grade standards; the modified polyethylene material is low in smoke, nontoxic, free of molten droplets, environmental friendly, lasting in flame retardant effect and low in combustion calorific value; and the material is improved in machining performance, mechanical performance, heat resistance, and the like, and has high practical value.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a silicon nitrogen flame-retardant modified polyethylene material and a preparation method thereof. Background technique [0002] Polyethylene is a light, non-toxic, thermoplastic material with excellent electrical insulation and chemical corrosion resistance. It is cheap and easy to form and process. It is widely used in electrical appliances, chemicals, food, machinery and other industries, among which it is used in wires Especially in the cable industry. At the same time, polyethylene has the disadvantage of poor flame resistance, and the cables made of it are sometimes easy to burn and cause fires under high temperature, heat generation, discharge and other conditions. Therefore, the flame retardant problem of polyethylene has been paid more and more attention. In recent years, the call for environmental protection has been increasing. While using flame retardants...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L51/06C09K21/14
CPCC08L23/06C08L2201/02C08L2205/025C08L2205/035
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC