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Glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof

A technology of flame-retardant polypropylene and composite materials, which is applied in the field of glass fiber reinforced flame-retardant polypropylene composite materials and its preparation, can solve the problems of large amount of compatibilizer, low strength, and limited application of materials in polypropylene composite materials. Achieve good flame retardancy, excellent flame retardancy, and expand the effect of application

Inactive Publication Date: 2013-12-04
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the flame retardancy of the materials announced at this stage can be guaranteed, the strength is too low, and the addition of a compatibilizer to the polypropylene composite material is large, these two points limit the application of the material

Method used

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  • Glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof
  • Glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof
  • Glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 49% of PP resin, 0.6% of white oil, 8% of compatibilizer, 22% of flame retardant, 0.4% of lubricant, and 20% of glass fiber by weight percentage, premix the raw materials, and then place the mixed raw materials in double Melt extrusion and granulation in the screw extruder. The extrusion process is: 140°C in the first zone, 170°C in the second zone, 170°C in the third zone, 160°C in the fourth zone, and 180°C in the die.

Embodiment 2

[0043] Weigh 40.8% of PP resin, 0.6% of white oil, 11% of compatibilizer, 22% of flame retardant, 0.6% of lubricant, and 25% of glass fiber by weight percentage, premix the raw materials, and then put the mixed raw materials in double Melt extrusion and granulation in the screw extruder. The extrusion process is: 145°C in the first zone, 175°C in the second zone, 165°C in the third zone, 150°C in the fourth zone, and 175°C in the die.

Embodiment 3

[0045] Weigh 35.6% of PP resin, 0.8% of white oil, 14% of compatibilizer, 24% of flame retardant, 0.6% of lubricant, and 25% of glass fiber by weight percentage, pre-mix the raw materials, and then put the mixed raw materials in double Melt extrusion and granulation in the screw extruder. The extrusion process is: 150°C in the first zone, 180°C in the second zone, 165°C in the third zone, 150°C in the fourth zone, and 180°C in the die.

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Abstract

The invention discloses a glass fiber reinforced flame-retarded polypropylene composite and a preparation method thereof. The glass fiber reinforced flame-retarded polypropylene composite comprises the following compositions in percentage by weight: 22-49% of polypropylene, 0.6-1% of white oil, 8-20% of compatibilizer, 22-26% of flame retardant, 20-30% of glass fiber and 0.4-1% of lubricating agent, wherein the self-made compatibilizer is composed of polypropylene, maleic anhydride, styrene and an initiator. The composite disclosed by the invention concurrently has the characteristics of high strength, high toughness and good flame retardance; and the application range of the polypropylene composite is enlarged, thus the polypropylene composite disclosed by the invention can be widely applied to the fields of industrial equipment and home appliances.

Description

[technical field] [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced flame-retardant polypropylene composite material and a preparation method thereof. [Background technique] [0002] Polypropylene (PP) is one of the most widely used general-purpose plastics. There are various methods of modifying it, and the products are relatively comprehensive. At present, it includes mineral reinforced modification, glass fiber reinforced modification, flame retardant modification, high-gloss polypropylene and so on. [0003] Glass fiber-reinforced modified polypropylene has high strength and high impact resistance, and is a PP modified material with great industrial demand; flame-retardant modified polypropylene has excellent fire resistance and flame-retardant properties, and is in great demand in the field of home appliances. How to make polypropylene take into account high strength and flame retardancy, then it must be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K7/14B29B9/06B29C47/92C08F255/02B29C48/92
Inventor 徐东徐永张博
Owner SHENZHEN KEJU NEW MATERIAL