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Polyropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of polypropylene composite materials and its preparation, can solve the problems of reducing mutual aggregation, rigid particle toughening effect is not obvious, etc., to achieve excellent notched impact strength, large shear force, production high efficiency effect

Inactive Publication Date: 2015-10-14
SINOPEC YANGZI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the toughening effect of rigid particles on polypropylene is not obvious. The problem to be solved in this method is the interface bonding between particles and the matrix, and the uniform dispersion of rigid particles in the matrix to reduce mutual aggregation.

Method used

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  • Polyropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Inorganic filler CaCO 3 Dry in an oven at 150°C for 2 hours, weigh 65 parts of polypropylene, 15 parts of POE, and 20 parts of CaCO 3 , 0.2 parts of composite antioxidant tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (abbreviated as 1010) and tris[2,4-di-tert-butylphenyl] Phosphite (referred to as 168) (weight ratio 1:1), 0.5 parts of processing aid calcium stearate and EBS (weight ratio 1:4) are mixed in a high-speed mixer and then added to a twin-screw extruder. 140~220°C (the temperature of each zone is 140°C, 180°C, 200°C, 220°C, 220°C, 220°C, 180°C, the same below, omitted) melt blending extrusion, cooling, pelletizing to obtain polypropylene composite material.

Embodiment 2

[0031] Inorganic filler CaCO 3 Dry in an oven at 150°C for 2 hours, weigh 70 parts of polypropylene, 10 parts of POE, 20 parts of CaCO 3 , 0.2 parts of antioxidant 1010 and bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite (referred to as 626) (weight ratio 1:1), 0.5 parts of processing aid calcium stearate and EBS (weight Ratio 1:4) Mixed uniformly in a high-speed mixer, then added to a twin-screw extruder, melted, blended, extruded, cooled, and pelletized at a temperature range of 140-220°C to obtain a polypropylene composite material.

Embodiment 3

[0033] Inorganic filler CaCO 3 Dry in an oven at 150°C for 2 hours, weigh 85 parts of polypropylene, 10 parts of POE, 5 parts of talc, 0.2 parts of antioxidants 1010 and 168 (weight ratio 1:1), 0.5 parts of processing aid stearic acid Calcium and EBS (weight ratio 1:4) are mixed evenly in a high-speed mixer, then added to a twin-screw extruder, melted, blended and extruded at a temperature range of 140-220 ° C, cooled, and pelletized to obtain a polypropylene composite material.

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Abstract

The invention discloses a polypropylene composite material and a preparation method thereof, wherein the material includes, by weight, (a) 40-85% of polypropylene resin, (b) 5-30% of a toughening agent, (c) 5-40% of a filling material, (d) 0.1-1% of a composite antioxidant, and (e) 0.1-1% of a processing aid. The preparation method includes the steps of (1) weighing the material according to the weight ratio of 40-85% of the polypropylene resin, 5-30% of the toughening agent, 5-40% of the inorganic material, 0.1-1% of the composite antioxidant, and 0.1-1% of the processing aid; (2) mixing the raw materials in a high-speed mixer uniformly; and (3) performing extrusion in a double-screw extruder to obtain a blended substance. The polypropylene composite material is excellent in anti-impact performance, is high in toughness at normal and low temperatures, is excellent in notch impact strength and is excellent in heat resistance and rigidity.

Description

technical field [0001] The invention relates to a polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene has a wide range of sources, its relative density is small, its processing performance is excellent, and its heat resistance is good. Its melting point reaches 164°C, and it can be used for a long time under the condition of 100-120°C. In addition, polypropylene also has excellent chemical corrosion resistance, electrical insulation and low dielectric rate, outstanding rigidity and folding resistance, and its products are non-toxic, tasteless, and glossy. Therefore, polypropylene is widely used in automobiles, machinery, home appliances, packaging and other fields. [0003] Although polypropylene has excellent properties, there are still many shortcomings when polypropylene is used as a structural material. Polypropylene has poor toughness, insufficient wear resistance, large molding shrinkage, and high brittleness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L75/04C08L25/04C08L23/16C08K13/02C08K3/34C08K3/26C08K3/30C08K13/04C08K7/08C08K5/098C08K5/20B29B9/06
CPCC08L23/12C08L2201/08C08L2205/06C08L23/0815C08K13/02C08K2003/265C08K5/1345C08K5/526C08K5/098C08K5/20C08K3/34C08L23/16
Inventor 袁小亮柯卓邱敦瑞左胜武
Owner SINOPEC YANGZI PETROCHEM
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