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
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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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