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Fiber reinforced polypropylene (PP) automobile interior decoration material and preparation method thereof

An automotive interior and fiber-reinforced technology, which is applied in the field of fiber-reinforced polypropylene automotive interior materials and its preparation, can solve problems that do not conform to the development direction of automotive materials, difficult processing, poor wear resistance and poor flexibility, and achieve mechanical The performance can be recycled and reused, the mechanical performance is excellent, and the effect of energy absorption is good

Inactive Publication Date: 2012-03-21
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, chemical fiber-reinforced PP materials are mainly used in the manufacture of automotive door linings, roofs, fenders, spoilers, front and rear bumpers, engine covers, etc., among which chemical fibers mainly include glass fiber, aramid, etc. , the chemical fiber reinforced PP composite material has high specific strength, but it is difficult to process, consumes a lot of energy, has caused environmental pollution, poor wear resistance and flexibility, and is not recyclable, which is not in line with the future development direction of automotive materials.

Method used

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  • Fiber reinforced polypropylene (PP) automobile interior decoration material and preparation method thereof

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example 1

[0027] By weight percentage, 73% of PP resin, 0.7% of coupling agent, 10% of talcum powder, 0.5% of antioxidant, and 0.8% of lubricant are mixed in a high-speed mixer for 3-5 minutes, and the speed of the high-speed mixer is 800 rpm Then the mixed raw materials are placed in the feeding barrel of the parallel twin-screw extruder, ramie (the fiber content is 20%, the fiber length is 6mm) 15% is added by the exhaust port, through melt extruding, granulation, its The extrusion process is: 1 zone 170-180 ℃, 2 zone 180-190 ℃, 3 zone 180-190 ℃, 4 zone 175-185 ℃, screw speed 350-400r / min, feeding frequency 20-25Hz, melt Pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

example 2

[0029] 63% PP resin, 0.7% coupling agent, 10% talcum powder, 0.5% antioxidant, 0.8% lubricant are mixed in a high-speed mixer for 3-5 minutes by weight, and the speed of the high-speed mixer is 800 rpm Then the mixed raw materials are placed in the feeding barrel of the parallel twin-screw extruder, ramie (fiber content is 20%, fiber length is 6mm) 25% is added by the exhaust port, through melt extruding, granulation, its The extrusion process is: 1 zone 170-180 ℃, 2 zone 180-190 ℃, 3 zone 180-190 ℃, 4 zone 175-185 ℃, screw speed 350-400r / min, feeding frequency 20-25Hz, melt Pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

example 3

[0031] Mix 53% of PP resin, 0.7% of coupling agent, 10% of talcum powder, 0.5% of antioxidant, and 0.8% of lubricant by weight in a high-speed mixer for 3-5 minutes, and the speed of the high-speed mixer is 800 rpm Then the mixed raw materials are placed in the feeding barrel of the parallel twin-screw extruder, ramie (fiber content is 20%, fiber length is 6mm) 35% is added by the exhaust port, through melt extruding, granulation, its extruding The production process is: 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.

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Abstract

The invention discloses a fiber reinforced PP automobile interior decoration material and a preparation method thereof. The fiber reinforced PP automobile interior decoration material comprises, by weight, 40-70% of a PP resin, 10-40% of a vegetable fiber, 5-20% of a filler, 0.3-0.8% of a coupling agent, 0.2-0.6% of an antioxidant and 0.3-1.0% of a lubricant. The vegetable fiber reinforced PP automobile interior decoration material is prepared by weighing above raw materials according to above proportions, mixing the raw materials for 3-5min in a mixer, putting the mixed raw materials in a parallel double screw extruder, and carrying out melt extrusion and granulation on the mixed raw materials. The vegetable fiber reinforced PP automobile interior decoration material which is obtained in the invention, adopts vegetable fiber reinforcement and has the advantages of excellent mechanical property, recoverability, small density, high impact resistance, and good energy absorption property accords with development trends of environmental protection, lightweight and sustainability of the automobile industry.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to a fiber-reinforced polypropylene automotive interior material 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 greater than polymethylpentene, density 0.85g / cm 3 ). Because of its good performance, small specific gravity, easy molding and processing, it is widely used in the automobile industry. [0003] At present, chemical fiber-reinforced PP materials are mainly used in the manufacture of automotive door linings, roofs, fenders, spoilers, front and rear bumpers, engine covers, etc., among which chemical fibers mainly include glass fiber, aramid, etc. , the chemical fiber reinforced PP composite material has high specific strength, but it is difficult to process, consumes a lot of energy, has caused...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L97/02C08J5/06B29B9/06B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 徐东徐永安林林
Owner SHENZHEN KEJU NEW MATERIAL
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