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Reinforced polypropylene material and preparation method and application thereof

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

Active Publication Date: 2021-04-30
KINGFA SCI & TECH CO LTD
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  • 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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  • Reinforced polypropylene material and preparation method and application thereof
  • Reinforced polypropylene material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-11 and comparative example 1-6

[0049] Examples 1-11 and Comparative Examples 1-6: Preparation of reinforced polypropylene materials

[0050] Weigh each component according to the formula content, and mix all components except the reinforcing fiber evenly, 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 of the twin-screw extruder material system, and then through twin-screw extruder melt blending, extrusion granulation to prepare reinforced polypropylene material.

[0051] The position of the side feeding system of the extruder can be adjusted, and the reinforcing fiber can enter the extruder screw in the first to tenth zones, and can be added after the extruder die, and then directly combined with the polypropylene melt. By adjusting the position where the reinforcing fiber enters the screw of the extruder, the reinforcing fiber with different length and content distribution can be obtained.

[0052] Among them, the...

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Abstract

The invention discloses a reinforced polypropylene material and a preparation method and application thereof. The reinforced polypropylene material comprises the following components in parts by weight: 20-80 parts of straight-chain polypropylene; 5-40 parts of long-chain branched polypropylene; 0.5-25 part of a compatilizer; 5-60 parts of reinforcing fibers; 1-20 parts of a fluorine compound; the prepared polypropylene material has high melt strength and good rigidity and heat resistance, and is mainly suitable for blow molding, plastic uptake 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 its preparation method and application. Background technique [0002] Polypropylene material is currently the most used polymer material. It has excellent processing properties and mechanical properties. It 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 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 stren...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08L27/18C08K7/14C08J5/10
CPCC08J5/10C08J5/047C08J5/043C08J2323/12C08J2423/12C08J2451/06C08J2427/18
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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