Scraping-resistant automobile inner fitting special-purpose material and preparation thereof

A scratch-resistant technology for automotive interior parts, applied in the field of polypropylene composite materials and processing technology, can solve the problems of high cost, poor scratch resistance on the surface of PP composite materials, poor comprehensive performance, etc. The effect of excellent surface scratch resistance and good impact resistance

Active Publication Date: 2008-09-03
南京金杉合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention is to solve the problems of poor scratch resistance on the surface of the current PP composite material and the high cost and poor comprehensive performance of the existing scratch-resistant special materials for automotive interior parts, and provides a scratch-resistant Special material for automotive interior parts and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Prepare according to the following formula:

[0036] ①PP 80 parts by mass;

[0037] ② Ultrafine talc powder (0.5-10 μm) 20 parts by mass;

[0038] ③Polyamide, polyether silicone oil 2.0 parts by mass (ratio 1:1)

[0039] ④ antioxidant 1010 1.0 parts by mass;

[0040] Formulate the above materials in parts by mass, first mix PP, lubricant, and antioxidant 1010 at a low speed of 300-500 rpm for 3 minutes, then add ultra-fine talc powder and mix at a low speed of 300-500 rpm 5 minutes, followed by mixing at a high speed of 1500-2000 rpm for 12 minutes, and then mixing at a low speed of 300-500 rpm for 10 minutes to obtain a composite material premix. After being extruded and granulated by an extruder, the scratch-resistant special material for automotive interior parts is obtained.

[0041] The performance of the prepared special material is as follows after testing:

[0042] Specific gravity 1.03

[0043] Elongation at break 400%

[0044] Tensile strength 22.94MPa ...

Embodiment 2

[0051] Prepare according to the following formula:

[0052] ①PP 85 parts by mass;

[0053] ② Superfine talc powder (0.5~10μm) 15 parts by mass;

[0054] ③ Polyamide, polyether silicone oil 2.4 parts by mass (ratio 1:5)

[0055] 4. Antioxidant 1010 1.5 parts by mass;

[0056] Formulate the above materials in parts by mass, first mix PP, lubricant and antioxidant 1010 at a low speed of 300-500 rpm for 5 minutes, then add ultra-fine talc powder and mix at a low speed of 300-500 rpm 3 minutes, followed by mixing at a high speed of 1500-2000 rpm for 15 minutes, and then mixing at a low speed of 300-500 rpm for 5 minutes to obtain a composite material premix. After being extruded and granulated by an extruder, the scratch-resistant special material for automotive interior parts is obtained.

[0057] The performance of the prepared special material is as follows after testing:

[0058] Specific gravity 1.02

[0059] Elongation at break 381%

[0060] Tensile strength 22.92MPa ...

Embodiment 3

[0067] Prepare according to the following formula:

[0068] ①PP 90 parts by mass;

[0069] ② Superfine talc powder (0.5-10μm) 10 parts by mass;

[0070] ③Oleic acid amide, silicone resin 2.8 parts by mass (ratio 5:1)

[0071] ④ antioxidant 1010 2.0 parts by mass;

[0072] Formulate the above materials in parts by mass, first mix PP, lubricant, and antioxidant 1010 at a low speed of 300-500 rpm for 3 minutes, then add ultra-fine talc powder and mix at a low speed of 300-500 rpm 4 minutes, followed by mixing at a high speed of 1500-2000 rpm for 10 minutes, and then mixing at a low speed of 300-500 rpm for 8 minutes to obtain a composite material premix. After being extruded and granulated by an extruder, the scratch-resistant special material for automotive interior parts is obtained.

[0073] The performance of the prepared special material is as follows after testing:

[0074] Specific gravity 1.01

[0075] Elongation at break 320%

[0076] Tensile strength 21.59MPa

[0...

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Abstract

The invention relates to a kind of scraping tolerance type special material for ornament in motor and preparation method, comprising(by weight parts): polypropylene 80-90 parts, superfine talcum powder 10-20 parts, lubricant 0.5-3.0 parts, antioxidant1010 1.0-2.0 parts. The method comprises: 1) stirring and mixing the polypropylene and lubricant, antioxidant at rotate speed of 300-500 rpm for 3-5 minutes; 2) adding superfine talcum powder and stirring and mixing at rotate speed of 300-500 rpm for 5-10 minutes; 3) stirring and mixing at rotate speed of 1500-2000 rpm for 10-15 minutes; 4) stirring and mixing at rotate speed of 300-500 rpm for 5-10 minutes to obtain premix material; 5) extruding the premix material by extruder to pelletizen finally the finished product being obtained. The invention has features: low odor emission, low cost, high surfaceness, better impact resistance, intension and toughness and good melt flowing, widely used in production of ornament in motor.

Description

technical field [0001] The invention relates to a scratch-resistant special material for automotive interior parts and a preparation method, specifically a scratch-resistant polypropylene composite material and a processing technology. Background technique [0002] At present, there are mainly three methods of scratch-resistant polypropylene (PP) composite materials and processing techniques at home and abroad. [0003] 1. Add functional additives [0004] The main additives are lubricants and nucleating agents. The crystallization properties of PP can be improved by introducing a nucleating agent to generate a crystal form that is beneficial to improve the surface scratch resistance. The introduction of a lubricant can improve the smoothness of the surface of the product and reduce the friction coefficient of the surface to improve the surface of the product. Scratch resistance. [0005] 2. Composite with inorganic filler [0006] The main fillers are wollastonite, glas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/34C08K5/134C08K5/20B29B9/12
Inventor 吴锡忠崔益华汪家宝沈玉海
Owner 南京金杉合成材料有限公司
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