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Special low-VOC scraping-resisting polypropylene composite material for automotive trim and preparation method of composite material

A technology for automotive interiors and composite materials, which is applied in the field of ultra-low shrinkage, low VOC and scratch-resistant polypropylene composite materials for automotive interiors and its preparation. Crystallization properties, reduce shrinkage, meet the effect of ultra-low shrinkage

Inactive Publication Date: 2015-03-25
GUANGZHOU KEYUAN INNOVATIVE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a general-purpose plastic, polypropylene modified materials have many advantages. They are used more and more in automobiles. With the development of the automobile industry and people's higher and higher requirements for environmental protection, the requirements for automobile modified materials are constantly increasing, and low shrinkage is required. High fluidity achieves the purpose of thinning the wall to reduce weight and weight, requires low volatility to achieve the purpose of environmental protection and harmlessness to the human body, requires scratch resistance to achieve the purpose of beautiful use, and domestic modified polypropylene automotive interior materials are due to their crystallization High post-shrinkage, volatile odor caused by residual monomers during polymerization, affecting environmental performance, and poor scratch resistance, which limits the further expansion of its use

Method used

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  • Special low-VOC scraping-resisting polypropylene composite material for automotive trim and preparation method of composite material
  • Special low-VOC scraping-resisting polypropylene composite material for automotive trim and preparation method of composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0020] An ultra-low shrinkage, low VOC, and scratch-resistant polypropylene composite material for automotive interiors, comprising the following components by weight percentage: 80% copolymerized PP; 11% toughening agent; 5.9% talcum powder; 1% ultrafine active nano-calcium; odor 0.5% absorbent; 0.5% weather-resistant and aging-resistant additive; 0.1% lubricant; 1% scratch-resistant agent.

[0021] The copolymerized PP is low-VOC polypropylene with a melt index MI of 10-50g / 10min, preferably Maoming Petrochemical Company PP MML28S; the toughening agent is ethylene, propylene or octene copolymer, preferably ExxonMobil POE; The preferred odor absorber zinc castor alcohol of Degussa Company; the weather resistance aid is one or both of hindered amines, ultraviolet absorbers, free radical scavengers, preferably BASF 1010, BASF 168; The anti-aging additive is hindered phenols or phosphite, preferably V680; the lubricant is oxidized polyhexene wax or calcium stearate, preferably H...

Embodiment 2

[0028] An ultra-low shrinkage, low VOC, and scratch-resistant polypropylene composite material for automotive interiors, comprising the following components by weight percentage: 69% of copolymerized PP; 15% of toughening agent; 10% of talcum powder; 1.5% of ultrafine active nano-calcium; 1% odor absorber; 1% weather and aging resistance additive; 0.5% lubricant; 2% scratch resistance agent.

[0029] The copolymerized PP is low-VOC polypropylene with a melt index MI of 10-50g / 10min, preferably Maoming Petrochemical Company PP MML28S; the toughening agent is ethylene, propylene or octene copolymer, preferably ExxonMobil POE; The preferred odor absorber zinc castor alcohol of Degussa Company; the weather resistance aid is one or both of hindered amines, ultraviolet absorbers, free radical scavengers, preferably BASF 1010, BASF 168; The anti-aging additive is hindered phenols or phosphite, preferably V680; the lubricant is oxidized polyhexene wax or calcium stearate, preferably H...

Embodiment 3

[0036] An ultra-low shrinkage, low VOC, and scratch-resistant polypropylene composite material for automotive interiors, comprising the following components by weight percentage: 65% copolymerized PP; 10% toughening agent; 19% talcum powder; 1% ultrafine active nano-calcium; odor 1% absorbent; 0.75% weather and aging resistance additive; 0.25% lubricant; 3% anti-scratch agent.

[0037]The copolymerized PP is low-VOC polypropylene with a melt index MI of 10-50g / 10min, preferably Maoming Petrochemical Company PP MML28S; the toughening agent is ethylene, propylene or octene copolymer, preferably ExxonMobil POE; The preferred odor absorber zinc castor alcohol of Degussa Company; the weather resistance aid is one or both of hindered amines, ultraviolet absorbers, free radical scavengers, preferably BASF 1010, BASF 168; The anti-aging additive is hindered phenols or phosphite, preferably V680; the lubricant is oxidized polyhexene wax or calcium stearate, preferably Honeywell's polye...

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Abstract

The invention discloses a special low-VOC scraping-resisting polypropylene composite material for an automotive trim and a preparation method of the composite material. The special low-VOC scraping-resisting polypropylene composite material comprises the following ingredients: 65-80 percent of a copolymer PP, 10-15 percent of a flexibilizer, 5-20 percent of talcum powder, 1-5 percent of superfine active nanometer calcium, 0.5-1 percent of an odor absorbent, 0.5-1 percent of a weather-resisting and ageing-resisting additive, 0.1-0.5 percent of a lubricating agent and 1-3 percent of a scraping resisting agent. The preparation method comprises the following steps: adding an ethylene-octylene copolymer, composite filler, the odor absorbent, the scraping resisting agent and the weather-resisting and ageing-resisting additive into a low-VOC polyolefin base material, mixing, and realizing a low shrinkage rate by a spatial effect of a superfine nanometer material in a composite system and interaction of the flexibilizer and the base material; extruding by use of a double-screw extruder under a melting condition by utilizing the peculiar smell absorption capacity of the odor absorbent on small molecules such as aldehydes, amine and sulfur ether, and then performing water-drawing granulation to obtain a finished product. The special low-VOC scraping-resisting polypropylene composite material disclosed by the invention has the advantage of realizing low VOC, low shrinkage and scraping resistance.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to an ultra-low shrinkage, low-VOC, scratch-resistant polypropylene composite material for automobile interior decoration and a preparation method thereof. Background technique [0002] As a general-purpose plastic, polypropylene modified materials have many advantages. They are used more and more in automobiles. With the development of the automobile industry and people's higher and higher requirements for environmental protection, the requirements for automobile modified materials are constantly increasing, and low shrinkage is required. High fluidity achieves the purpose of thinning the wall to reduce weight and weight, requires low volatility to achieve the purpose of environmental protection and harmlessness to the human body, requires scratch resistance to achieve the purpose of beautiful use, and domestic modified polypropylene automotive interior materials are due to thei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08K13/02C08K3/34B29C47/92B29C48/92
CPCC08L23/14B29C48/92B29C2948/92704C08K2201/003C08K2201/011C08K2201/015C08L2205/03C08L23/0815C08L23/06C08K13/02C08K3/34C08K5/1345C08K5/526
Inventor 针涛张扬张胜炀万兆荣黄少洲黄焕坤翟森
Owner GUANGZHOU KEYUAN INNOVATIVE MATERIALS
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