Low-shrinkage, low-warpage and soft-tactility polypropylene composite material used for automotive interior decoration and preparation method of polypropylene composite material

A composite material and automotive interior technology, applied in the field of soft-touch polypropylene composite materials and their preparation, can solve problems such as floating fiber and glass fiber product warpage, achieve soft touch, reduce shrinkage and warpage, prevent warping effect

Inactive Publication Date: 2017-09-08
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the high surface gloss, strong plastic feeling and large shrinkage of polypropylene, it is difficult to achieve the soft touch effect of polypropylene by one-time injection molding. At the same time, glass fiber products are easy to warp the product and produce "floating fibers" on the surface. " and other problems, the present invention provides a low shrinkage, low warpage soft-touch acrylic composite material and its preparation method

Method used

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  • Low-shrinkage, low-warpage and soft-tactility polypropylene composite material used for automotive interior decoration and preparation method of polypropylene composite material
  • Low-shrinkage, low-warpage and soft-tactility polypropylene composite material used for automotive interior decoration and preparation method of polypropylene composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 59 parts of block copolymerized polypropylene, 20 parts of elastomer SBS, 10 parts of 2500 mesh calcium silicate, 1 part of polypropylene grafted maleic anhydride, 2 parts of fluff powder, 0.15 parts of antioxidant 1010, 0.15 parts of antioxidant 168 , 0.2 parts of hindered amine light stabilizer, 2 parts of anti-scratch agent are put into the high-speed mixer and blended for 5-10 minutes; 10 parts of glass fiber are added to the co-rotating twin-screw extruder together with step (1) Medium-melt blending extrusion granulation, the extrusion temperature is 190-220°C, and the vacuum degree is -0.04~-0.08.

Embodiment 2

[0032] Block copolymer polypropylene 52 parts, elastomer SBS 20 parts, 2100 mesh calcium silicate 5 parts, polypropylene grafted maleic anhydride 3 parts, fluff powder 5 parts, antioxidant 1010 0.1 part, antioxidant 168 0.1 part , 0.3 parts of hindered amine light stabilizer, 2 parts of anti-scratch agent are mixed in a high-speed mixer for 5-10 minutes; 20 glass fibers are added to the co-rotating twin-screw extrusion with the measured feeding material and step (1) Melt blending extrusion granulation, the extrusion temperature is 190-220°C, and the vacuum degree is -0.04~-0.08.

Embodiment 3

[0034] 43 parts of block copolymerized polypropylene, 20 parts of elastomer SEBS, 5 parts of ethylene-butene block copolymer, 10 parts of 3000 mesh calcium silicate, 2 parts of polypropylene grafted maleic anhydride, 5 parts of fluff powder, antioxidant 0.1 part of agent 1010, 0.1 part of antioxidant 168, 0.5 part of hindered amine light stabilizer, 2 parts of anti-scratch agent, and 1 part of lubricant TAF were mixed in a high-speed mixer for 5-10 minutes; 15 glass fibers were used The feeding material is added to the co-rotating twin-screw extrusion together with the step (1) to melt, blend, extrude and granulate. The extrusion temperature is 190-220° C., and the vacuum degree is -0.04~-0.08.

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PUM

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Abstract

The invention relates to a low-shrinkage, low-warpage and soft-tactility polypropylene composite material used for automotive interior decoration and a preparation method of the polypropylene composite material. The materials is prepared from, by weight, 40-60 parts of polypropylene, 20-25 parts of elastomers, 10-30 parts of glass fibers, 5-10 parts of inorganic filler, 1-3 parts of compatibilizer, 0-5 parts of fluff powder, 0.2-0.4 part of antioxidant, 0.2-0.5 part of light stabilizer and 0-3 parts of other auxiliaries. By selecting polypropylene, the elastomers, fluff powder and other materials in suitable matching ratio, through one-time injection, the product is soft in touch feeling, low in gloss, excellent in impact resistance, excellent in scratch resistance and low in shrinkage and warpage, and can be widely used in the field of automotive interior decoration. The prepared soft-tactility polypropylene composite material has the advantages of being simple in process and low in cost, is suitable for industrial continuous production and has a great application and development prospect.

Description

[0001] Technical field: [0002] The invention relates to the technical field of polymers, in particular to a low-shrinkage, low-warping soft-touch polypropylene composite material for automobile interior decoration and a preparation method thereof. Background technique [0003] Due to its low density, excellent mechanical properties, good processability and recyclability, polypropylene is widely used in automotive interior and exterior decorations such as instrument panels, door panels, pillars, anti-scratch strips, and glove boxes. With the requirements of the aesthetic design of automobile interior and the improvement of consumers' living standards, a "soft" touch automobile interior is proposed. "Soft touch" is a property of plastic products, including two aspects of visual touch and hand touch. It can be described as the low gloss that gives the material a soft feeling and a certain softness when touching the part by hand after the line of sight touches the part. Spend. ...

Claims

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Application Information

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IPC IPC(8): C08L53/00C08L53/02C08L51/06C08L75/04C08K13/04C08K7/14C08K3/34
CPCC08L53/00C08K2201/003C08K2201/004C08K2201/014C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L2205/08C08L2205/18C08L53/02C08L51/06C08L75/04C08K13/04C08K7/14C08K3/34C08L53/025C08L51/00
Inventor 石阳阳周海李飞夏洋李荣群
Owner ORINKO NEW MATERIAL CO LTD
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