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Sound insulation polypropylene composition and preparation method thereof

A polypropylene composition and polypropylene technology, applied in the field of sound-insulating polypropylene composition and its preparation, can solve the problems of damage to the processing performance and mechanical properties of polymer composite materials, achieve excellent sound insulation performance, and the preparation method is simple and The effect of good mechanical properties

Inactive Publication Date: 2018-06-12
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to obtain better sound insulation performance of high-molecular composite materials, a large amount of inorganic fillers are usually added, usually with a mass fraction greater than 30%, which seriously damages the processing performance and mechanical properties of high-molecular composite materials.

Method used

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  • Sound insulation polypropylene composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 68wt% copolymerized polypropylene Yanshan Petrochemical PP K7726H, 10wt% elastomer EPDM rubber, 10wt% high-density polyethylene HDPE, 10wt% inorganic filler talcum powder, 2wt% organically modified montmorillonite YH-1075 and 0.05 Wt% processing aids (0.01wt% each of antioxidant 1010 and antioxidant 168, 0.03wt% of light stabilizer UV-3808PP5) were added to a high-speed mixer and mixed for 1-3 minutes at a speed of 1000-2000 rpm , to obtain a premix; the premix is ​​added at the main feeding port of the twin-screw extruder, the temperature of each zone of the screw is 190-230° C., and the sound-insulating polypropylene material of the present invention is obtained by vacuum granulation.

Embodiment 2

[0030] 53wt% homopolypropylene Zhenhai refinery PP Z30S, 15wt% elastomer ethylene-butene copolymer, 15wt% low-density polyethylene LDPE, 15wt% inorganic filler calcium carbonate, 2wt% organically modified montmorillonite YH- 1075 and 0.5wt% processing aid (antioxidant 1010, antioxidant 168, each 0.1wt% of antioxidant DSTDP, light stabilizer V703 0.2wt%) join in the high-speed mixer and mix for 1-3 minutes, the rotating speed is 1000-2000 rpm to obtain the premixed material; the premixed material is added to the main feeding port of the twin-screw extruder and the temperature in each zone of the screw is 210-240 °C, and the sound-insulating polypropylene material of the present invention is obtained by vacuum granulation.

Embodiment 3

[0032] 89wt% copolymerized polypropylene Basel PP EA5074, 5wt% linear low density polyethylene LLDPE, 5wt% inorganic filler (talcum powder 3wt% and wood powder 2wt%), 1wt% organically modified montmorillonite YH-1075 and 0.1 Wt% processing aid (0.005wt% each of antioxidant 1010 and antioxidant 168) was added to a high-speed mixer and mixed for 1-5 minutes at a speed of 1000-2000 rpm to obtain a premix; The main feeding port of the twin-screw extruder is fed into each zone of the screw at a temperature of 190-220°C, and the sound-insulating polypropylene material of the present invention is obtained by vacuum granulation.

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Abstract

The invention belongs to the technical field of polypropylene macromolecular materials, and discloses a sound insulation polypropylene composition and a preparation method thereof. The composition isprepared from the following components in percentage by mass: 37 to 89 percent of polypropylene, 0 to 20 percent of an elastomer, 5 to 20 percent of PE, 5 to 20 percent of an inorganic filler, 1 to 3percent of organically modified montmorillonite and 0.01 to 1 percent of a processing aid. According to the sound insulation polypropylene composition and the preparation method thereof, the organically modified montmorillonite is used as a nano sound insulation filler; sound insulation polypropylene is prepared through a melt blending method; a prepared composite material is excellent in sound insulation performance; the sound insulation polypropylene composition can be widely applied to the field of automotive interior trims.

Description

Technical field: [0001] The invention belongs to the technical field of polypropylene polymer materials, in particular to a sound-insulating polypropylene composition and a preparation method thereof. Background technique: [0002] With the development of modern industry, transportation and construction, noise pollution is becoming more and more serious, which has seriously affected people's health and daily life. Sound insulation materials for noise pollution control have received extensive attention in recent years. Compared with traditional metal sound insulation materials and inorganic sound insulation materials, polymer materials have the advantages of light weight, easy molding and processing, and viscoelastic damping. However, due to the low density and low rigidity of polymer materials, polymer materials usually have poor sound insulation performance, and it is difficult to meet the performance requirements in actual sound insulation and noise reduction applications...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/16C08L23/06C08L23/08C08L23/12C08L97/02C08K13/06C08K9/06C08K3/34C08K3/26
CPCC08K2201/011C08K2201/014C08L23/12C08L23/14C08L2205/025C08L2205/03C08L2205/035C08L2205/16C08L2207/062C08L2207/066C08L23/16C08L23/06C08K13/06C08K9/06C08K3/346C08K3/34C08L23/0815C08K2003/265C08L97/02
Inventor 杨桂生计娉婷朱敏廖雄兵
Owner HEFEI GENIUS NEW MATERIALS