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Low-odor and low-volatile automobile heavy sound insulation mat material and preparation method thereof

A low-volatility, low-odor technology, which is applied in low-volatility automotive heavy-duty sound-insulating pad materials and its preparation, and low-odor fields. It can solve the problems of poor feeding ability, material odor and volatiles that cannot meet consumer requirements, low odor, etc. problem, to achieve the effect of improving the devolatilization effect

Inactive Publication Date: 2016-03-23
KINGFA SCI & TECH CO LTD +2
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] At present, most of the heavy-duty soundproof cushion materials on the market are prepared from ethylene-vinyl acetate copolymer and ethylene-octene copolymer. Due to the strong smell of ethylene-vinyl acetate copolymer and the poor ability to eat materials, the prepared materials The odor and volatile matter can not meet the requirements of consumers. Therefore, it is necessary to study a low-odor, low-volatility automobile heavy-duty soundproof cushion material

Method used

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  • Low-odor and low-volatile automobile heavy sound insulation mat material and preparation method thereof
  • Low-odor and low-volatile automobile heavy sound insulation mat material and preparation method thereof

Examples

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Embodiment 1-7 and comparative example 1-4

[0056] According to the formula in Table 1, first weigh ethylene-propylene copolymer, linear low-density polyethylene, lubricant, and antioxidant and add them to a high-speed mixer and mix for 3-5 minutes, wherein the speed of the high-speed mixer is 200 rpm-300 rpm; then weigh the inorganic filler and add it to the high-speed mixer and mix for 3-5 minutes, wherein the speed of the high-speed mixer is 200 rpm-300 rpm; add the above-mentioned mixed particles into the twin-screw extruder Melt extrusion, granulation, drying, cooling and packaging are carried out. Among them, the twin-screw extruder is a double-vacuum design (that is, a vacuum pump is installed in the 6th zone and 9th zone respectively), and the vacuum degree is ≤ -0.05bar. The screw length-to-diameter ratio of the twin-screw extruder is 48, and the screw speed is 480rpm. The feeding speed is 1000kg / h, and the temperature of the twin-screw extruder is 200°C, 200°C, 200°C, 210°C, 210°C, 205°C, 205°C, 205°C, 200°C f...

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Abstract

The present invention discloses a low-odor and low-volatile automobile heavy sound insulation mat material and a preparation method thereof. The materiel comprises the following components: 12-24 parts of ethylene-propylene copolymer, 4-8 parts of linear low-density polyethylene and 64-81 parts of an inorganic filler. The preparation method comprises the following steps: after mixing the materials, feeding the mixture into a twin screw extruder for melt extrusion, granulating, drying, cooling and package to obtain the material, wherein, the twin screw extruder is designed in a double-vacuum manner, and the requirement of a vacuum degree is less than or equal to -0.05 bar. According to the method disclosed by the present invention, by using the ethylene-propylene copolymer and the linear low density polyethylene to replace a conventional ethylene-vinyl acetate copolymer and ethylene-octene copolymer, the odor and volatile matters of the material are significantly improved; and the prepared and obtained vehicle heavy sound insulation mat material has the advantages of low odor, low volatile and the like, can meet the requirement of each big host factory for an automobile interior material, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a low-odor, low-volatility automotive heavy-duty sound-insulating cushion material and a preparation method thereof. Background technique [0002] With the increasing development of the automobile industry and the increasing awareness of environmental protection and health of consumers, people not only require the car to have a spacious interior space, a wide view and comfortable seating, but also require the air in the car to be fresh and of good quality. The volatile harmful substances in the car have attracted people's attention, and its intuitive reflection is the perception of odor. Studies have shown that there are many sources of odor in the car. Volatile organic compounds (volatile organic compounds, referred to as "VOC" ”) is one of the main reasons that affect the air quality inside the car. Most interior components contain a certain amount of volatile orga...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/08C08K13/04C08K7/20C08K5/098C08K3/30C08K3/26B29C47/76B29C48/76
CPCC08L23/14B29C48/766C08L2205/03C08L23/0815C08L91/06C08K13/04C08K7/20C08K5/098C08K2003/3045C08K2003/265
Inventor 俞飞陈业中钱志军陈瑶吴国峰杨波周英辉丁超罗忠富叶南飚
Owner KINGFA SCI & TECH CO LTD
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