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High glaze polypropylene material and preparation method thereof

A polypropylene material and high-gloss technology, applied in the field of polypropylene material and its preparation, can solve the problems of insufficient environmental protection and high price of barium sulfate, and achieve the effects of improving weather resistance, improving surface brightness, and simple preparation process

Inactive Publication Date: 2008-01-09
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the problem of high price of barium sulfate used in the traditional high-gloss polypropylene material production process and not being environmentally friendly, and to provide a polypropylene material with high surface gloss, environmental protection and low price and its preparation method

Method used

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  • High glaze polypropylene material and preparation method thereof

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preparation example Construction

[0028] Please refer to Fig. 1, the preparation method for preparing described high-gloss polypropylene material comprises the following steps:

[0029] Step 1: Weigh 100 parts of polypropylene resin, 25 to 35 parts of filler, 0.5 to 1.5 parts of dispersant, 0.1 to 0.5 parts of crosslinking agent, 0.1 to 0.5 parts of nucleating agent, and 0.1 to 0.5 parts of antioxidant by weight ratio If necessary, weigh 0.1-0.5 parts of UV absorber and 0.1-0.5 parts of lubricant;

[0030] Step 2: Mix the components weighed in step 1 in a high-speed mixer for 3-5 minutes;

[0031] Step 3: Place the mixed components in a parallel twin-screw extruder for melt extrusion and granulation.

[0032] The extrusion process conditions of the parallel twin-screw extruder are: zone 1 170--180°C, zone 2 180--190°C, zone 3 180-190°C, zone 4 175-185°C, screw speed 350~ 400r / min, feeding frequency 20~25Hz, melt pressure 3.0~4.0MPa, vacuum degree -0.03-0.06Mpa.

Embodiment 1

[0036] In parts by weight, mix 100 parts of PP resin, 25 parts of filler, 0.5 part of dispersant, 0.1 part of crosslinking agent, 0.1 part of nucleating agent, and 0.1 part of antioxidant in a high-speed mixer for 3 to 5 minutes, The speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. -190°C, 180--190°C in the third zone, 175--185°C in the fourth zone, screw speed 350-400r / min, feeding frequency 20-25Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03-0.06MPa .

Embodiment 2

[0038] In parts by weight, mix 100 parts of PP resin, 30 parts of filler, 1.0 part of dispersant, 0.3 part of crosslinking agent, 0.3 part of nucleating agent, and 0.3 part of antioxidant in a high-speed mixer for 3-5 minutes , the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. --190℃, 180--190℃ in the third zone, 175--185℃ in the fourth zone, screw speed 350-400r / min, feeding frequency 20-25Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03-0.06 MPa.

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Abstract

A high-lustre polypropylene material and its production are disclosed. The material consists of polypropylene resin 100 proportion, filler nanometer calcium carbonate 25-35 proportion, dispersant 0.5-1.5 proportion, cross-linking agent diisopropylzene 0.1-0.5 proportion, beta-crystal nucleation agent 0.1-0.5 proportion, and antioxidant 0.1-0.5 proportion. It costs low, has better toughness and surface brightness on surface.

Description

technical field [0001] The invention relates to a high-gloss polypropylene material and a preparation method thereof, in particular to a polypropylene material with high surface gloss, environmental protection and low price and a preparation method thereof. Background technique [0002] Polypropylene (PP) is one of the five general-purpose plastics with a density of 0.90g / cm 3 , is the second lightest polymer material in existing resins (only larger than polymethylpentene, with a density of 0.85g / cm 3 ). Because of its good performance, small specific gravity, and easy molding and processing, it is widely used in the automobile industry, household appliances, electronic instrument industry, and textile industry. [0003] Therefore, people have developed high-gloss PP, which replaces the expensive acrylonitrile-butadiene-styrene copolymer (ABS) material with its lower price, high-gloss surface, and excellent comprehensive performance to produce home appliances. product cas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/524B29C47/40B29C47/92C08K3/26C08K5/14C08K5/20C08K5/09B29C48/92B29C48/95
CPCB29C48/95
Inventor 徐东贺永杨书涛
Owner SHENZHEN KEJU NEW MATERIAL
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