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Material of polyolefin elastomer dedicated to skins of instruments decorated inside auto car

A polyolefin elastomer and automotive interior technology, which is applied in the field of special materials for automotive interior instrument skins, can solve the problems of high prices and affect the development of the automobile manufacturing industry in mainland China, and achieve low cost, excellent appearance, and good physical properties Effect

Active Publication Date: 2007-10-10
双嘉新材料科技(浙江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the domestic use of ABS / PVC alloy resin for automotive instrument skins is stopped, it means that mainland China will use a large number of special materials for automotive instrument skins made of polyene elastomers from the German company Aker. The constraints of the manufacturing industry will seriously affect the development of the automobile manufacturing industry in mainland China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 60kg of EPDM rubber, 15kg of polyethylene, 10kg of polypropylene, 5.5kg of silane coupling agent, 0.5kg of organotin, 5kg of decabromodiphenylethane, 3kg of antimony trioxide, and 0.3kg of antioxidant 1010 , Zinc stearate 0.7kg. Among the above materials, EPDM rubber accounts for 60%, polyethylene accounts for 15%, polypropylene accounts for 10%, silane coupling agent accounts for 5.5%, organotin accounts for 0.5%, and decabromodiphenylethane accounts for 5%. Antimony trioxide accounts for 3%, antioxidant 1010 accounts for 0.3%, and zinc stearate accounts for 0.7%.

[0031] The above-mentioned materials are made by using the existing traditional ABS / PVC resin production equipment through the following steps:

[0032] EPDM, PE, PP, environmentally friendly flame retardants, organic tin, flame retardants and other additives - high-speed mixer - Φ65 twin-screw reaction extruder - water cooling - air drying - pelletizer - screening - - Inspection - storage tank - st...

Embodiment 2

[0035] Weigh 50kg of EPDM rubber, 20kg of polyethylene, 15kg of polypropylene, 3kg of silane coupling agent, 1.8kg of organotin, 8kg of decabromodiphenylethane, 1.5kg of antimony trioxide, and 0.4kg of antioxidant 1010 , Zinc stearate 0.3kg. Among the above materials, EPDM rubber accounts for 50%, polyethylene accounts for 20%, polypropylene accounts for 15%, silane coupling agent accounts for 3%, organotin accounts for 1.8%, and decabromodiphenylethane accounts for 8%. Antimony trioxide accounts for 1.5%, antioxidant 1010 accounts for 0.4%, and zinc stearate accounts for 0.3%. The preparation method is the same as in Example 1.

[0036] The various physical indexes of the obtained product are: tensile strength greater than 10Mpa, notched Izod impact strength constant, elongation at break greater than 400%, 125°C thermal aging for 500 hours, the above properties remain unchanged. It can be used as a good car interior instrument skin and a special material for car interior do...

Embodiment 3

[0038] Weigh 35kg of EPDM rubber, 10kg of polyethylene, 35kg of polypropylene, 7kg of silane coupling agent, 3.5kg of organotin, 6kg of decabromodiphenylethane, 2.5kg of antimony trioxide, and 0.3kg of antioxidant 1010 Zinc stearate 0.7kg, in the above-mentioned materials, EPDM rubber accounts for 35%, polyethylene accounts for 10%, polypropylene accounts for 35%, silane coupling agent accounts for 7%, organotin accounts for 3.5%, decabromo Diphenylethane accounted for 6%, antimony trioxide accounted for 2.5%, antioxidant 1010 accounted for 0.3%; zinc stearate accounted for 0.7%. The preparation method is the same as in Example 1.

[0039] The various physical indexes of the product are: tensile strength greater than 21Mpa, Izod notched impact strength constant, elongation at break greater than 200%, heat aging at 125°C for 500 hours, and the above properties maintain more than 90%. It can be used as a good special material for automobile bumpers, suitable for injection moldi...

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Abstract

This invention discloses an automobile inner decoration material of polyolefin elastomer. The material comprises: ternary ethylene-propylene rubber 30-60 wt.%, polyethylene 10-35 wt.%, polypropylene 6-35 wt.%, silane coupling agent 3-7 wt.%, organic Sn 0.5-3.5 wt.%, perfluorodibenylethane 5-8 wt.%, Ti2O3 1.5-3 wt.%, antioxidant-1010 0.3-0.5 wt.%, and zinc stearate 0.3-0.8 wt.%. The material can be produced by traditional ABS / PVC resin production process and apparatus. The material has such advantages as good physical properties, light weight, high elasticity, and good permanent deformation performance, high scrape resistance, and high heat and cold resistance, and can be used for automobile inner decoration.

Description

technical field [0001] The invention discloses a special material for automobile interior trim instrument skins, which takes polyolefin elastomer as the main component. Background technique [0002] The traditional automotive interior instrument leather is made of ABS / PVC alloy material, which is rolled out by a calender with a thickness of 1 to 1.6mm, and then molded by blistering. Due to the requirements of humanization and environmental protection in the automobile manufacturing industry, the requirements for automotive interior parts are more stringent. Because the acrylonitrile in ABS in the traditional ABS (butadiene-acrylonitrile-styrene) / PVC (polyvinyl chloride) alloy resin material has nitrile groups, it will always decompose into nitrile groups during high-temperature processing, which is harmful to the human body and the environment. have a certain impact. Butadiene in ABS is a very active group. Weak to ultraviolet light and chemical resistance. Very prone to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K5/57C08L23/06C08L23/12C08K5/54C08K3/22C08K5/09
Inventor 吴南松
Owner 双嘉新材料科技(浙江)有限公司
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