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A kind of reinforced polypropylene material and its preparation method and application

A technology of polypropylene material and straight-chain polypropylene, applied in the field of engineering plastics, can solve problems such as low melt elongation, low melt strength, floating fibers on the surface, etc., achieve high surface gloss, improve melt strength, float slimming effect

Active Publication Date: 2022-08-09
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the polyolefin materials suitable for blow molding and blister use are basically pure HDPE or PP resins. These resins can be molded well, but they still need to be improved in terms of heat resistance and strength.
In the industry, the high strength and high rigidity of glass fibers are usually used to improve product strength and heat resistance, but conventional glass fiber reinforced polypropylene materials have low melt strength, low melt elongation, surface floating fibers and poor toughness And other issues

Method used

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  • A kind of reinforced polypropylene material and its preparation method and application
  • A kind of reinforced polypropylene material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-11 and comparative example 1-6

[0050] Examples 1-11 and Comparative Examples 1-6: Preparation of Reinforced Polypropylene Materials

[0051] Weigh each component according to the formula content, and mix all components except the reinforcing fiber uniformly, then add the mixture to the main feeding system of the twin-screw extruder; at the same time, add the reinforcing fiber to the side feeding system of the twin-screw extruder The reinforced polypropylene material is prepared by melt blending and extrusion granulation through a twin-screw extruder.

[0052] The position of the extruder side feeding system can be adjusted, and the reinforcing fibers can enter the extruder screw in the first to tenth zones, and be added after the extruder die, and then directly combined with the polypropylene melt. Reinforcing fibers with different lengths and content distributions can be obtained by adjusting the position where the reinforcing fibers enter the extruder screw.

[0053] The temperature of the first to secon...

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Abstract

The invention discloses a reinforced polypropylene material and a preparation method and application thereof, comprising: 30-70 parts of straight-chain polypropylene; 2-50 parts of long-chain branched polypropylene; 1-20 parts of a compatibilizer; 60 parts; 0.1-20 parts of fluorine compounds; the polypropylene material prepared by the invention has high surface gloss, good toughness and high melt strength, and is mainly suitable for blow molding and suction molding and other occasions.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a reinforced polypropylene material and a preparation method and application thereof. Background technique [0002] Polypropylene material is currently the most widely used polymer material. It has the advantages of excellent processing performance and mechanical properties, and is widely used in daily life and industrial production fields, such as: agricultural film, wire and cable, communication, housing construction and aviation manufacturing. Wait. [0003] At present, the polyolefin materials suitable for blow molding and blister molding are basically HDPE or PP pure resins. These resins can be molded well, but they still need to be improved in terms of heat resistance and strength. The industry usually uses the high strength and high rigidity of glass fiber to improve product strength and heat resistance, but conventional glass fiber reinforced polypropylene m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08L27/18C08K7/14
CPCC08L23/12C08L2205/035C08L2205/025C08L2205/04C08K2201/014C08K2201/004C08L51/06C08L27/18C08K7/14
Inventor 陆湛泉黄险波叶南飚陈平绪程文建程书文姜向新杨霄云
Owner KINGFA SCI & TECH CO LTD
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