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Long-fiber reinforced polypropylene and preparation method thereof

A polypropylene, a medium and long fiber technology, which is applied in the field of long fiber reinforced polypropylene and its preparation, can solve the problems of complicated formula and production process, and achieve the requirements of simplifying the formula and production process, reducing equipment and environmental conditions, Easy to process effects

Inactive Publication Date: 2020-05-15
重庆霏欧纳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an important means of high-performance general-purpose plastics, long-fiber reinforced polypropylene composite materials not only have good mechanical properties, but also can be processed in a variety of ways, so they have been widely used in many fields such as automobiles and home appliances. However, if you want to obtain High-performance long fiber reinforced polypropylene, its formula and production process are complex and cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A long-fiber reinforced polypropylene disclosed in this example is composed of the following components in parts by weight: 40 parts of homopolypropylene, 5 parts of KT-1 compatibilizer, 0.2 parts of coupling agent, and 10 parts of glass fiber .

[0012] The preparation method of long-fiber-reinforced polypropylene is to firstly mix 40 parts of homopolypropylene, 5 parts of KT-1 compatibilizer, and 0.2 parts of coupling agent to obtain a colloid, and then mix the high-mixed colloid at a temperature of 250 ° C Then the glass fiber and colloid are extruded through the injection molding machine at a temperature of 240°C, then water-cooled, then pelletized, and then dried at a temperature of 80°C for 9 hours, and finally high-mixing That's it.

Embodiment 2

[0014] A long-fiber reinforced polypropylene disclosed in this example is composed of the following components in parts by weight: 60 parts of homopolypropylene, 10 parts of KT-1 compatibilizer, 0.3 parts of coupling agent, and 20 parts of glass fiber .

[0015] The preparation method of long-fiber reinforced polypropylene, firstly mix 60 parts of homopolypropylene, 10 parts of KT-1 compatibilizer, and 0.3 parts of coupling agent to obtain a colloid, and then mix the high-mixed colloid at a temperature of 260 ° C The sol is carried out at a temperature of 260°C, and then the glass fiber and colloid are extruded through an injection molding machine at a temperature of 260°C, then water-cooled, then pelletized, and then dried at a temperature of 80°C for 9 hours, and finally high-mixing That's it.

Embodiment 3

[0017] A long-fiber reinforced polypropylene disclosed in this example is composed of the following components in parts by weight: 80 parts of homopolypropylene, 15 parts of KT-1 compatibilizer, 0.5 parts of coupling agent, and 30 parts of glass fiber .

[0018] The preparation method of long-fiber reinforced polypropylene, firstly mix 80 parts of homopolypropylene, 15 parts of KT-1 compatibilizer, and 0.5 parts of coupling agent to obtain a colloid, and then mix the high-mixed colloid at a temperature of 300 ° C The sol is carried out at a temperature of 280°C, and then the glass fiber and colloid are extruded through the injection molding machine at a temperature of 280°C, then water-cooled, then pelletized, and then dried at a temperature of 80°C for 9 hours, and finally high-mixing That's it.

[0019] Through the long-fiber-reinforced polypropylene and its preparation method disclosed in the above examples, the long-fiber-reinforced polypropylene has excellent physical pr...

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PUM

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Abstract

The invention discloses a long-fiber reinforced polypropylene and a preparation method thereof. The long-fiber reinforced polypropylene is prepared from, by weight, 40-80 parts of homo-polypropylene,5-15 parts of a KT-1 compatilizer, 0.2-0.5 part of a coupling agent and 10-30 parts of a glass fiber. The preparation method comprises the following steps: firstly, performing high-speed mixing on 40-80 parts of the homo-polypropylene, 5-15 parts of the KT-1 compatilizer and 0.2-0.5 part of the coupling agent to obtain a colloid, performing solation on the high-speed mixed colloid at 250-300 DEG C, extruding the glass fiber and the colloid through an injection molding machine at 240-280 DEG C, carrying out water cooling, pelletizing, drying at 80 DEG C for 9 h, and carrying out high-speed mixing. The formula and the production process of the long-fiber reinforced polypropylene are simplified, and the requirements on equipment and environmental conditions are reduced, so that the long-fiberreinforced polypropylene is easy to process.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a long fiber reinforced polypropylene and a preparation method thereof. Background technique [0002] Long-fiber reinforced plastics have better mechanical properties, dimensional stability and heat resistance than chopped fibers. As an important means of high-performance general-purpose plastics, long-fiber reinforced polypropylene composite materials not only have good mechanical properties, but also can be processed in a variety of ways, so they have been widely used in many fields such as automobiles and home appliances. However, if you want to obtain The formulation and production process of high-performance long-fiber-reinforced polypropylene are complex and cumbersome. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a long-fiber reinforced polypropylene and its preparation method. Its formula and processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K7/14C08J5/04
CPCC08J5/043C08J2323/12C08K7/14
Inventor 徐必桃蒋垍桓戴镇杨
Owner 重庆霏欧纳科技有限公司
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