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Scraping-resistant polypropylene combination with good appearance and manufacturing method and application thereof

A polypropylene composition and scratch-resistant technology, applied in the field of polymer modification, can solve problems such as scratches and scratches on injection molded parts, achieve good surface effect, good application prospects, and improve flow marks and tiger skin problems. Effect

Inactive Publication Date: 2013-06-05
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These patents solve the appearance problem of polypropylene composition injection molding to a certain extent, but do not solve the problem of scratches and scratches existing in the later use of injection molded parts, and cannot well satisfy people's expectations for the beauty of interior and exterior parts of automobiles today. , durable requirements

Method used

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  • Scraping-resistant polypropylene combination with good appearance and manufacturing method and application thereof
  • Scraping-resistant polypropylene combination with good appearance and manufacturing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add 10 parts by weight of talc powder of 2500 mesh, 0.1 parts by weight of antioxidant 1010, 0.1 part by weight of antioxidant 168, 0.2 parts by weight of UV531, and 0.2 parts by weight of calcium stearate into a high-speed mixer for pre-mixing for 3 minutes , then 48 parts by weight of copolymerized polypropylene PPZA191, 33.5 parts by weight of copolymerized polypropylene PPYPJ1215C, 3 parts by weight of metallocene modified polyethylene, 4 parts by weight of toughening agent ethylene-octene copolymer POE8150, 1.5 parts by weight of vinyl-terminated Linear reactive siloxane anti-scratch agent, added to a high-speed mixer and mixed for 3 minutes;

[0029] (2) Then put this mixture into the lower hopper of the extruder, extrude and granulate. ); obtaining a scratch-resistant polypropylene composition with good appearance.

[0030] The scratch-resistant polypropylene composition with good appearance in this embodiment can be successfully applied to automobile parts ...

Embodiment 2

[0032] (1) Add 8 parts by weight of 2500 mesh talcum powder, 7 parts by weight of calcium carbonate of 2500 mesh, 0.1 part by weight of antioxidant 1010, 0.1 part by weight of antioxidant 168, 0.1 part by weight of UV531, and 0.2 parts by weight of liquid paraffin, and mix them at high speed Pre-mixed in the machine for 3 minutes, then 67.2 parts by weight of copolymerized polypropylene PPZA191, 8 parts by weight of high-density polyethylene, 8 parts by weight of toughening agent ethylene-octene copolymer POE8150, 1.8 parts by weight of ultra-high molecular weight silicone polymer resistant Scraping agent, add to the high-speed mixer and mix for 3 minutes;

[0033] (2) Then put this mixture into the lower hopper of the extruder, extrude and granulate. ); obtaining a scratch-resistant polypropylene composition with good appearance.

Embodiment 3

[0035] (1) Add 20 parts by weight of 2500 mesh talcum powder, 0.1 parts by weight of antioxidant 1010, 0.2 parts by weight of antioxidant 168, 0.2 parts by weight of UV531, and 0.3 parts by weight of calcium stearate into a high-speed mixer for pre-mixing for 3 minutes , then 35 parts by weight of copolymerized polypropylene PPZA191, 35 parts by weight of copolymerized polypropylene PPK7780, 4 parts by weight of metallocene modified polyethylene, 4 parts by weight of toughening agent ethylene-octene copolymer POE8150, 2 parts by weight of organic modified silicon Ketone anti-scratch agent, add to high-speed mixer and mix for 3 minutes;

[0036] (2) Then put this mixture into the lower hopper of the extruder, extrude and granulate. ); obtaining a scratch-resistant polypropylene composition with good appearance.

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Abstract

The invention discloses a scraping-resistant polypropylene combination with good appearance. The combination comprises the components, by weight, of polypropylene of 57-82 parts, polyethylene of 3-8 parts, flexibilizer of 3-8 parts, mineral filler of 10-30 parts, scraping-resistant agents of 1.5-2.5 parts, and other assistant agents of 0.5-1 part. The invention further discloses a manufacturing method and application of the scraping-resistant polypropylene combination with the good appearance. According to the combination, by adding the polyethylene and the processing agents, phase interface problems of the combination are well improved, current ripple and tiger stripe problems existing in an injection process of the combination are well improved, so that great surface effect of an combination injection molding piece is achieved, and the scraping-resistant agents are added so that surface damage generated by scraping and friction during a using process of the combination injection molding piece is relieved. The requirements on the surface performance of the combination during the injection molding process and the later-stage using process and mechanical performance are considered in an overall mode, the requirements on inner ornaments and outer ornaments of an automobile are met, and good application prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of polymer modification, in particular to a scratch-resistant polypropylene composition with good appearance, its preparation method and application. Background technique [0002] Polypropylene (PP) has the advantages of low price, small specific gravity, high elasticity, heat resistance, chemical stability, good insulation, easy recycling, and easy processing, and it is well adapted to the policy requirements of lightweight, energy saving and emission reduction. In recent years, it has been widely used in automotive interior and exterior trims, such as: bumpers, fenders, anti-scratch strips, instrument panels, door panels, glove boxes, pillars, map belts, trunks and other auto parts. However, polypropylene materials also have disadvantages such as low temperature toughness, dimensional stability, scratch resistance and poor wear resistance. In order to improve the shortcomings of polypropylene and meet the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/06C08L23/08C08L83/04C08K13/02C08K13/04C08K5/5425C08K5/20
Inventor 邵灵芝
Owner HEFEI GENIUS NEW MATERIALS
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