High-strength wear-resistant flame-retardant polypropylene and preparation method thereof

A flame-retardant polypropylene and high-strength technology, applied in the field of polypropylene, can solve the problems of low wear resistance and low strength of flame-retardant polypropylene, achieve good heat resistance, promote crystallization, and increase strength

Inactive Publication Date: 2014-12-17
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of low wear resistance and low strength of flame retardant polypropylene in the prior art, and provide a compound synergistic effect of modified filler, boron nitride and additives to improve strength and wear resistance Flame-retardant polypropylene and its preparation method

Method used

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  • High-strength wear-resistant flame-retardant polypropylene and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A high-strength wear-resistant and flame-retardant polypropylene, consisting of 49 parts of polypropylene matrix, 18.2 parts of modified glass fiber with a length of 2mm, 7.8 parts of modified hollow glass microspheres, 1 part of cubic boron nitride, and 7.41 parts of nano-alumina , 12.35 parts of nitrogen-phosphorus flame retardant with a particle size of 3-15 μm, 1.24 parts of white carbon black, 1 part of phosphite antioxidant and 2 parts of dimethyl silicone oil; among them, the modified glass fiber is modified by KH550 Modified glass microspheres are mixed with rare earth modifier and hollow glass microspheres at a weight ratio of 3:100.

[0029] The method for preparing high-strength wear-resistant and flame-retardant polypropylene comprises the following steps: step 1, take 20ml of KH550, and then dissolve it in 980ml of ethanol to make a volume concentration of 2% KH550 / ethanol solution, then weigh 300g of glass fibers, soaked in KH550 / ethanol solution for 12 ho...

Embodiment 2

[0036] A high-strength wear-resistant and flame-retardant polypropylene, consisting of 46 parts of polypropylene matrix, 14.7 parts of modified glass fiber with a length of 2mm, 6.3 parts of modified hollow glass microspheres, 4 parts of cubic boron nitride, and 7.41 parts of nano-alumina , 12.35 parts of nitrogen-phosphorus flame retardant with a particle size of 3-15 μm, 1.24 parts of white carbon black, 3 parts of phosphite antioxidant and 5 parts of dimethyl silicone oil; among them, the modified glass fiber is modified by KH550 Modified glass microspheres are mixed with rare earth modifier and hollow glass microspheres at a weight ratio of 3:100.

[0037] For the preparation method of high-strength wear-resistant and flame-retardant polypropylene, refer to the preparation steps of Example 1.

Embodiment 3

[0039] A high-strength wear-resistant and flame-retardant polypropylene, consisting of 55 parts of polypropylene matrix, 14 parts of modified glass fiber with a length of 2mm, 6 parts of modified hollow glass microspheres, 2 parts of cubic boron nitride, and 6.35 parts of nano-alumina , 10.59 parts of nitrogen-phosphorus flame retardant with a particle size of 3-15 μm, 1.06 parts of white carbon black, 1 part of phosphite antioxidant and 4 parts of dimethyl silicone oil; among them, the modified glass fiber is modified by KH550 Modified glass microspheres are mixed with rare earth modifier and hollow glass microspheres at a weight ratio of 3:100.

[0040] The preparation method of high-strength wear-resistant and flame-retardant polypropylene, the specific steps are: step 1, take 20ml of KH550, then dissolve it in 980ml of ethanol to make a KH550 / ethanol solution with a volume concentration of 2%, and then weigh 300g of glass fibers, soaked in KH550 / ethanol solution for 12 hou...

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Abstract

The invention relates to high-strength wear-resistant flame-retardant polypropylene and a preparation method thereof. The polypropylene is prepared from the following components in parts by weight: 42-55 parts of a polypropylene base body, 20-29 parts of modified packing, 1-4 parts of boron nitride, 18-21 parts of additives, 1-3 parts of a phosphite antioxidant and 2-5 parts of dimethicone. The preparation method comprises the following steps: uniformly mixing the polypropylene base body, the modified packing, the boron nitride, the additive, the phosphite antioxidant and the dimethicone by virtue of a high speed mixer; adding the mixed material into a granulator to be granulated; and then adding aggregates into an injection moulding machine to prepare a sample so as to prepare the flame-retardant polypropylene. According to the flame-retardant polypropylene provided by the invention, various inorganic components are added to improve the flowability of a polymer and an inorganic packing system and enhance the toughening effect, and no bulking agents are used, so that the cost is lowered. The additives, glass fibers and a flame retardant are halogen-free materials, the preparation process is simple and convenient, the adopted materials are cheap, and the comprehensive cost is relatively remarkable in advantage compared with that of a conventional polypropylene composite material.

Description

technical field [0001] The invention relates to the field of polypropylene, in particular to a high-strength wear-resistant and flame-retardant polypropylene and a preparation method thereof. Background technique [0002] Due to its excellent mechanical properties, insulation, low density and chemical resistance and other comprehensive properties, polypropylene fibers are widely used in the automotive industry, electrical industry, daily necessities and packaging industries. Laws related to these application fields According to regulations and user requirements, flame retardant processing should be carried out on polypropylene materials. At present, flame retardants are mainly used to flame-retardant polypropylene at home and abroad. However, halogen-containing flame retardants have been banned in many countries because they form corrosive hydrogen halides during combustion and generate a large amount of smoke. [0003] At present, a synergist is usually used to compound ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L83/04C08K13/06C08K9/06C08K7/14C08K7/28C08K3/22C08K3/36C08K3/38B29B9/06B29C45/78
CPCB29B9/06B29C45/76C08K2201/003C08K2201/004C08K2201/011C08L23/12C08L2201/02C08L83/04C08K13/06C08K9/06C08K9/00C08K7/14C08K7/28C08K2003/385C08K2003/2227C08K3/36
Inventor 张炎斌刘继纯魏风军于卓立贾秋丽
Owner HENAN UNIV OF SCI & TECH
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