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silicate silicone noise-reduction aid and preparation of noise-reducing low-odor PC/ABS alloy

A technology of silicate and noise-reducing additives, which is applied in the field of preparation of silicate-silicone noise-reducing additives. It can solve the problems of processability and aesthetic requirements of unfavorable product parts, achieve excellent mechanical properties, improve mechanical strength, The effect of reducing odor emission

Inactive Publication Date: 2019-04-12
北京航天凯恩新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no low-odor PC / ABS alloy that can reduce noise in the automotive industry. The noise reduction materials in related industries are mostly filled and multi-layered, which is not conducive to the processability and aesthetic requirements of product parts.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In this example, the silicate silicone noise reduction additive is prepared as follows:

[0034] First, 7 kg of montmorillonite (interlayer spacing 2.8 nm) and 0.5 kg of flake graphite were added to a ball mill, mixed and ball milled for 2 hours to obtain uniformly mixed materials. After the material is taken out, put it into a low-speed mixer with 1kg of coupling agent, and mix for 10-30 minutes. Put the mixed material and 1 kg of silicone liquid into an internal mixer at a temperature of 190°C, melt and banbury for 10 minutes, and granulate to obtain a silicate silicone noise reduction additive.

Embodiment 2

[0036] In this example, the silicate silicone noise reduction additive is prepared as follows:

[0037] First, 7 kg of montmorillonite (interlayer distance 2.8 nm) and 0.5 kg of vermiculite were added to a ball mill, mixed and ball milled for 2 hours to obtain uniformly mixed materials. After the material is taken out, put it into a low-speed mixer with 1kg of coupling agent, and mix for 10-30 minutes. Put the mixed material and 1 kg of silicone liquid into an internal mixer at a temperature of 190°C, melt and banbury for 10 minutes, and granulate to obtain a silicate silicone noise reduction additive.

Embodiment 3

[0039] In this example, the silicate silicone noise reduction additive is prepared as follows:

[0040] First, add 7kg halloysite and 0.5kg flake graphite into the ball mill, mix and ball mill for 1 hour to obtain a uniformly mixed material. After the material is taken out, put it into a low-speed mixer with 1kg of coupling agent, and mix for 10-30 minutes. Put the mixed material and 1 kg of silicone liquid into an internal mixer at a temperature of 190°C, melt and banbury for 15 minutes, and granulate to obtain a silicate silicone noise reduction additive.

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Abstract

The invention provides a silicate silicone noise-reduction aid and preparation of a noise-reducing low-odor PC / ABS alloy. The alloy is composed of the following components in percentage by weight: PC(polycarbonate) 35-80%, ABS (acrylonitrile-butadiene-styrene copolymer) 20-40%, the silicate silicone noise-reduction aid 1-15%, toughening agent 2-8%, compatibilizer 1-5%, antioxidant 0.1-1%, and lubricant 0.1-1%. The self-made novel silicate silicone noise-reduction aid has a reducing effect on noise transmission, and has adsorption effect on high-efficiency volatile organic substances and harmful gases, and the noise-reducing low-odor PC / ABS alloy prepared by preparation method of the invention has the advantages of excellent mechanical properties, noise reduction and low odor emission.

Description

technical field [0001] The invention belongs to the technical field of material modification, and relates to the preparation of a low-odor PC / ABS alloy with noise-reducing performance, in particular to the preparation of a silicate silicone noise-reduction aid, which can reduce the noise of PC / ABS alloys Adsorption. Background technique [0002] PC / ABS alloy has excellent mechanical and thermal properties, and is widely used in automobiles, home appliances, digital products and other fields. However, when assembling some parts, frictional vibrations during bonding or sliding will produce tremor sounds, and abnormal noises will be produced when different parts rub against each other, which not only affects driving comfort, but also causes discomfort to passengers in the car. feel. Most of the existing technologies reduce the coefficient of friction by adding lubricating grease, which not only increases the cost, but also has cumbersome processes, and cannot achieve the effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L83/04C08K13/02C08K3/04C08K3/34
CPCC08L69/00C08L2205/035C08L55/02C08L83/04C08K13/02C08K3/346C08K3/04
Inventor 陈婧孙兆懿孟征钱晶安峻莹舒帮建张钰莹苏昱黄兴宇吴超姜昊郑骏驰
Owner 北京航天凯恩新材料有限公司
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