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Polypropylene composite material as well as preparation method and application thereof

A technology of composite materials and polypropylene, which is applied in the application field of polypropylene composite materials and its preparation, and the preparation of seamless automotive dashboards, can solve the problems affecting the appearance of the whole vehicle, and achieve broad market prospects, excellent low-temperature impact performance, The effect of low VOC

Inactive Publication Date: 2014-10-22
CGN JUNER NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a visible assembly line at the place where it matches the dashboard, which affects the appearance of the whole vehicle

Method used

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  • Polypropylene composite material as well as preparation method and application thereof
  • Polypropylene composite material as well as preparation method and application thereof
  • Polypropylene composite material as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1～5

[0038] The components such as copolymerized polypropylene (that is, the copolymerized polypropylene of propylene-ethylene block), polyethylene, talcum powder, thermoplastic elastomer, anti-scratch additive, lubricant, composite light and heat stabilizer are in parts by weight in Table 1 The proportioning ratio is mixed evenly in the mixer to obtain the mixed material. The mixed material is fed into the twin-screw extruder from the feeder. The temperature of the twin-screw extruder from the feeding section to the head is as follows: 190°C, 210°C, 220°C, 220°C, 220°C, 220°C, 220°C, 230°C, the temperature of the die is: 230°C. After high-speed twin-screw extruder (screw speed: 800r / min), shearing and mixing, extruding from the machine head, drawing, air cooling, pelletizing, drying and packaging, the polypropylene composite product is obtained.

[0039] Table 1

[0040]

[0041] The source of raw material used among the embodiment 1~5 and main performance index are as table ...

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Abstract

The invention discloses a polypropylene composite material for a car seamless dashboard. The polypropylene composite material consists of the following raw materials in percentage by weight: 50-70% of propylene-ethylene block co-polypropylene, 3-10% of polyethylene, 5-30% of a thermoplastic elastomer, 5-30% of talcum powder, 0.5-3% of a composite photo-thermal stabilizing agent, 0.1-1% of a lubricating agent, 0.5-4% of anti-scratch additives and 0-5% of a coloring agent. The polypropylene composite material for the car seamless dashboard can show excellent low-temperature impact resistance, particularly, can be used for meeting the multi-axial low temperature impact performance of fracture toughness at -35 DEG C, also has the characteristics such as scratch resistance, weather resistance and low total carbon, and can be used for meeting the requirements of a high-grade car seamless blasting dashboard. The invention also discloses a preparation method of the polypropylene composite material. The preparation method is simple to operate, does not need special equipment, is low in cost, and is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a polypropylene composite material, a preparation method thereof, and an application in preparing an automobile seamless instrument panel. Background technique [0002] Automobiles are one of the most important means of transportation in modern society. In 2013, the national automobile production and sales were 22.1168 million and 21.9841 million, an increase of 14.8% and 13.9% respectively over the previous year. However, automobiles are large energy consumers. In order to save energy, the automobile industry will develop in the direction of energy conservation, environmental protection, and safety in the future. According to reports, 1% weight loss of general auto parts can save 1% fuel; this requires that the used auto materials have the characteristics of light weight, simple processing, and easy recycling. [0003] Polypropylene is a general-purpose thermoplastic ...

Claims

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Application Information

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IPC IPC(8): C08L53/00C08L23/08C08K13/02C08K3/34C08K5/098B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704
Inventor 李俊郑京连安孝善田际波黄志杰
Owner CGN JUNER NEW MATERIALS
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