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Anti-ageing PP/HDPE (Polypropylene/High-Density Polyethylene) plastic for automobile interior and preparation method thereof

An anti-aging technology for automotive interior parts, which is applied in the field of anti-aging PP/HDPE plastics for automotive interior parts and its preparation, and can solve problems such as poor anti-aging properties

Active Publication Date: 2012-08-29
克林斯曼新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its anti-aging is not good

Method used

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  • Anti-ageing PP/HDPE (Polypropylene/High-Density Polyethylene) plastic for automobile interior and preparation method thereof
  • Anti-ageing PP/HDPE (Polypropylene/High-Density Polyethylene) plastic for automobile interior and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] After weighing each raw material according to the data corresponding to Example 1 in Table 1, add it to a high-speed mixer for stirring, control the speed at 300-400r / min, stir at a temperature of 70-90°C, and stir for 2-4 minutes, and then extrude through a screw Machine extruding and granulating, the extrusion temperature is 170-210 DEG C, cooling and molding in cold water of 10-40 DEG C, and the anti-aging PP / HDPE plastics for automotive interior parts are obtained.

[0031] Table 1: Formula table of anti-aging PP / HDPE plastics for automotive interior parts Unit: kg

[0032]

Embodiment 2

[0034] Each raw material was weighed according to the data corresponding to Example 2 in Table 1. The method described in Example 1 was used to prepare the anti-aging PP / HDPE plastic for automotive interior parts.

Embodiment 3

[0036] Each raw material was weighed according to the data corresponding to Example 3 in Table 1. The method described in Example 1 was used to prepare the anti-aging PP / HDPE plastic for automotive interior parts.

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PUM

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Abstract

The invention discloses anti-ageing PP / HDPE (Polypropylene / High-Density Polyethylene) plastic for an automobile interior and a preparation method thereof. The automobile interior is applied to PP / HDPE plastic, and comprises the following components in parts by weight: 100 parts of PP, 20-30 parts of HDPE, 10-20 parts of ethylene propylene diene monomer and 0.1-5 parts of anti-ageing agent. The method comprises the following steps of: weighing raw materials according to a certain proportion; mixing uniformly; melting and compounding; and extruding and pelletizing to obtain the PP / HDPE plastic. The anti-ageing PP / HDPE plastic for the automobile interior has rubber body appearance and performance, high tensile strength, high flexural modulus and high cantilever beam gap impact strength, and can be easily processed into automobile interiors of various shapes through an injection molding process such as glove box inner cover plates, glove box hoppers, auxiliary instrument board bodies, storage box liners and panel storage boxes.

Description

technical field [0001] The invention relates to a plastic material and a preparation method thereof, in particular to an anti-aging PP / HDPE plastic for automotive interior parts and a preparation method thereof. Background technique [0002] Polypropylene, abbreviated as PP, was first put into industrial production in Italy in 1957 and is another important plastic species after polyethylene (PE). It has good heat resistance, and it will not be destroyed when it is cooked at 135°C for 1000 hours. The specific heat capacity and thermal conductivity of PP are smaller than that of PE, but its thermal insulation is better than that of PE. PP is a non-polar polymer with excellent dielectric and electrical insulation properties. The electrical properties are basically not affected by ambient humidity and electric field frequency. Within the allowable operating range, the increase in temperature will reduce the electrical properties. Its High arc resistance. PP has good chemical r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/06C08L23/16C08K5/372C08K5/526C08K5/13C08K5/134B29B9/06
Inventor 赵海应张荣福印玲
Owner 克林斯曼新材料有限公司
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