Recycled material for preparing vehicle bumper and preparation method of such recycled material

A technology of automobile bumper and recycled polypropylene, which is applied in the field of composite materials, can solve the problems of bad smell, poor processing performance and poor stability, and achieve the effects of low odor, good impact performance and good melt fluidity

Active Publication Date: 2013-04-10
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of recycled material for preparing automobile bumpers, which solves the problems of waste plastics such as light weight, low strength, poor stability, poor processing performance, and unpleasant smell, improves product performance, and greatly reduces cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] According to the mass ratio of 1:3, take 100 parts of talcum powder and calcium carbonate, add 3 parts of white oil, 2 parts of titanate coupling agent, and 2 parts of silicone plastic dispersant E525 to fully mix, dry, and then mix. After cooling treatment, powdery inorganic mineral fillers are obtained;

[0047] Mix 65 parts of recycled polypropylene, 5 parts of recycled polyethylene and 10 parts of elastomer POE in a high-speed mixer for 4 minutes; then add 2 parts of diatomaceous earth, 0.5 parts of compatibilizer, 0.4 parts of antioxidant, and 0.6 parts of lubricant 2 parts, mixed in the high-speed mixer sink for 5 minutes; finally added 20 parts of the prepared inorganic mineral filler, mixed in the high-speed mixer for 4 minutes to obtain the premix, and the speed of the mixer in the whole mixing process was 1800 rpm point. Then feed the premix into the twin-screw extruder and preheat for 3 minutes. The temperature in the first zone of the screw is 185°C, the te...

Embodiment 2

[0049] Take 100 parts of calcium carbonate and mica powder at a mass ratio of 4:1, add 4 parts of white oil, 3 parts of titanate coupling agent, 3 parts of silicone plastic dispersant E525, and 2 parts of calcium stearate for mixing , drying, remixing, and cooling to obtain powdered inorganic mineral fillers;

[0050]Mix 50 parts of recycled polypropylene, 15 parts of recycled polyethylene and 10 parts of elastomer POE in a high-speed mixer for 3 minutes; then add 5 parts of diatomaceous earth, 1 part of compatibilizer, 0.4 parts of antioxidant, and 1 part of lubricant , mixed in the high-speed mixer sink for 6 minutes; finally added 25 parts of the prepared inorganic mineral filler, mixed in the high-speed mixer for 5 minutes to obtain the premix, and the speed of the mixer in the whole mixing process was 2000 rpm . Then feed the premix into the twin-screw extruder and preheat for 3 minutes. The temperature in the first zone of the screw is 185°C, the temperature in the seco...

Embodiment 3

[0052] Mix 85 parts of recycled polypropylene, 5 parts of recycled polyethylene and 10 parts of elastomer EPDM in a high-speed mixer for 5 minutes; then add 1 part of diatomaceous earth, 1.5 parts of compatibilizer, 0.2 parts of antioxidant, and 0.3 parts of lubricant Parts were mixed in a high-speed mixer sink for 3 minutes to obtain a premix, and the speed of the mixer during the entire mixing process was 1000 rpm. Then feed the premixed material into the twin-screw extruder and preheat for 4 minutes. The temperature in the first zone of the screw is 185°C, the temperature in the second zone is 190°C, the temperature in the third zone is 195°C, the temperature in the fourth zone is 200°C, and the temperature in the fourth zone is 200°C. The temperature in the fifth zone is 205°C, the temperature in the sixth zone is 205°C, the temperature of the extruder head is 200°C, the screw speed is 500 rpm, vacuum extrusion, water cooling, pelletizing and drying, the regeneration of the...

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Abstract

The invention relates to a recycled material for preparing vehicle bumper and a preparation method of the recycled material. The recycled material is prepared from recycled polypropylene, recycled polyethylene, an elastomer, an inorganic mineral filter, kieselguhr, a compatilizer, an antioxidant and a lubricant. The preparation method of the recycled material provided by the invention is reasonable, simple in technology, safe and environment-friendly, can obviously improve the strength, the rigidity, the flexibility and the size stability of the recycled plastic, and simultaneously, can greatly eliminate the pungent smell caused by degrading and the like of the recycled plastic; and moreover, in comparison with new materials, the recycled material can reduce the cost under the condition of low performance loss, and can be used for low- and mid-range vehicle bumpers.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a recycled material used for preparing automobile bumpers and a preparation method thereof. [0002] Background technique [0003] The rapid development of the global plastics industry has brought a huge boost to the world economy, but it has also brought a lot of waste plastics. As a new resource, waste plastics contain huge development and utilization value. The sustainable recycling of waste plastics is the general trend of the development of recycled plastics, which has attracted the attention of countries all over the world. At present, there are many technologies and methods for recycling waste plastics, mainly including sorting and recycling, simple regeneration, compounding, degradation and burning. [0004] The car bumper is a safety device that absorbs and moderates external impact and protects the front and rear of the car body. In the automobile indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/08C08L23/16C08L53/02C08K13/06C08K3/34C08K3/26B29C47/92B29C48/92
CPCB29C48/40
Inventor 杨桂生康克琪
Owner HEFEI GENIUS NEW MATERIALS
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