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Polypropylene modified sound insulation composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of polypropylene modified sound insulation composite material and its preparation, can solve the problem of vehicle light weight and good sound insulation performance cannot be balanced, achieve excellent sound insulation effect, improve the degree of dispersion, improve the insulation sound effects

Active Publication Date: 2018-03-13
中广核俊尔(上海)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a polypropylene modified sound-insulating composite material and its preparation method, so as to solve the problem that the light weight of automobiles and good sound-insulating performance cannot be balanced in the prior art

Method used

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  • Polypropylene modified sound insulation composite material and preparation method thereof
  • Polypropylene modified sound insulation composite material and preparation method thereof
  • Polypropylene modified sound insulation composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Take by weighing the quality of each raw material shown in table 1: polypropylene (PP-1) 88.8g, talcum powder-1 (BHS-1250) 10g, tetrakis [β-(3,5-di-tert 0.2 g of butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, and 1 g of titanate coupling agent. The above-mentioned polypropylene (PP-1), talc-1 (BHS-1250), tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, titanate After the joint agent is placed in a high-speed mixer and mixed evenly, it is extruded and granulated by a twin-screw extruder. The diameter of the extrusion screw is 35mm, the length-to-diameter ratio L / D is 40, the speed of the main engine is set to 200 rpm, and the temperature of each zone of the main barrel (from the feeding port to the outlet of the machine head) is set to: 60 ° C, 180 ° C , 230°C, 230°C, 230°C, 230°C, 230°C, after melt extrusion, cooling, granulation, drying and other processes, the product is obtained, that is, polypropylene modif...

Embodiment 2

[0028] Embodiment 2: Take by weighing the quality of each raw material shown in table 1: polypropylene (PP-2) 77.8g, talcum powder-1 (BHS-1250) 20g, tetrakis [β-(3,5-ditertiary Butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester 0.2g, titanate coupling agent 2g. The above-mentioned polypropylene (PP-2), talc-1 (BHS-1250), tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, titanate After the joint agent is placed in a high-speed mixer and mixed evenly, it is extruded and granulated by a twin-screw extruder. The diameter of the extrusion screw is 35mm, the length-to-diameter ratio L / D is 40, the speed of the main engine is set to 200 rpm, and the temperature of each zone of the main barrel (from the feeding port to the outlet of the machine head) is set to: 60 ° C, 180 ° C , 230°C, 230°C, 230°C, 230°C, 230°C, after melt extrusion, cooling, granulation, drying and other processes, the product is obtained, that is, polypropylene modified sou...

Embodiment 3

[0029] Embodiment 3: Take by weighing the quality of each raw material shown in table 1: polypropylene (PP-2) 77.8g, talcum powder-2 (SD-700) 20g, tetrakis [β-(3,5-ditert-tert Butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester 0.2g, titanate coupling agent 2g. The above-mentioned polypropylene (PP-2), talc-2 (SD-700), tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, titanate After the joint agent is placed in a high-speed mixer and mixed evenly, it is extruded and granulated by a twin-screw extruder. The diameter of the extrusion screw is 35mm, the length-to-diameter ratio L / D is 40, the speed of the main engine is set to 200 rpm, and the temperature of each zone of the main barrel (from the feeding port to the outlet of the machine head) is set to: 60 ° C, 180 ° C , 230°C, 230°C, 230°C, 230°C, 230°C, after melt extrusion, cooling, granulation, drying and other processes, the product is obtained, that is, polypropylene modified sound ...

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Abstract

The invention discloses a polypropylene modified sound insulation composite material and a preparation method thereof. The polypropylene modified sound insulation composite material comprises, in weight percent, 33.8%-88.8% of polypropylene, 10%-60% of modified talcum powder, 0.2% -2% of antioxidants and 1%-6% of additives. The composite material mainly takes the modified talcum powder as a raw material, the modified talcum powder after intercalation modification in a supercritical carbon dioxide state is of a laminated structure in a polypropylene substrate, polymer macromolecules easily enter in the production process of the modified talcum powder, the stripping degree of the modified talcum powder in polypropylene is greatly improved, the reflection frequency of the same weight parts oftalcum powder for sound waves is increased, the composite material has excellent sound insulation effects and better stiffness increasing effects, and sound absorption and sound insulation performances of the composite material are improved.

Description

technical field [0001] The invention relates to the fields of polymer materials and the like, in particular to a polypropylene-modified sound-insulating composite material and a preparation method thereof. Background technique [0002] As one of the five general-purpose plastics, polypropylene PP has excellent mechanical properties, heat resistance, processability and relatively low price, making it occupy an important position in plastics and widely used in daily life. At present, unmodified polypropylene cannot meet the performance requirements of daily life, so it is usually modified and filled with talcum powder, which not only effectively improves the mechanical properties of the material, but also can further reduce the cost of the material , is one of the commonly used methods for modifying polypropylene materials for automobiles. [0003] With the increasing demand for lightweight and environmentally friendly automobiles, sound insulation materials that are lightwei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08K9/04C08K7/00C08K3/34
CPCC08K3/34C08K7/00C08K9/04C08L23/12C08L23/14Y02P20/54
Inventor 付光黄志杰屈国梁王海华杨仓先
Owner 中广核俊尔(上海)新材料有限公司
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