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Talc powder filled polypropylene with high rigidity, high toughness and high scratch resistance and method for preparing same

A technology of talc powder and polypropylene, which is applied in the field of high rigidity, high toughness and scratch resistance talc powder filled polypropylene and its preparation, which can solve the problems of difficulty in achieving rigidity and toughness, poor low-temperature impact performance, and poor scratch resistance. , to achieve the effect of improving scratch resistance, scratch resistance and processing performance, and improving the environment

Inactive Publication Date: 2005-06-29
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polypropylene also has the disadvantages of poor heat resistance, low rigidity, poor scratch resistance and poor low-temperature impact performance. Usually, the toughness of polypropylene materials is improved by adding rubber, but at the same time the rigidity is reduced, and it is difficult to achieve rigidity and low temperature. balance of toughness

Method used

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Embodiment Construction

[0032] The present invention is a high-rigidity, high-toughness, scratch-resistant talcum powder-filled polypropylene masterbatch prepared by pre-blending talcum powder and rubber. It is made of the following raw materials in proportion by weight:

[0033] a. Polypropylene 50-80

[0034] b. Talc masterbatch 20-50

[0035] c. Polymer silicone elastomer 0.5-5

[0036] d. Stabilizer 0.1-1.0

[0037] e. Talc surface passivator 0.2-1.5

[0038] f. Processing aid 0.05-1.0

[0039] g. Toner 0.3-2.0

[0040] In the above formula, a+b is 100 parts by weight, and other additives are parts by weight.

[0041] The polypropylene mentioned in the present invention is a blend of one or more isotactic polypropylenes. These isotactic polypropylenes include homopolypropylene and copolymerized polypropylene, wherein copolymerized polypropylene is further divided into random copolymerized polypropylene and block copolymerized Propylene, comonomers are ethylene, butene to 20 carbon olefins. ...

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Abstract

The invention relates to high molecular processing field compound material, especially a high molecular organic sillicon elastomer filled with talcum powder agglomerate, with outstanding rigidity and resistance to heat and its preparing method, which can be applied in auto and toner field, such as pate of tenacity, door, plate of augxiliary tenacity, deconating stick and other polypropylene inside and outside automobile. The invention is comprised of high molecular organic sillicon elastomer and talcum powder agglomerate with high crystal and the percentages of each component are: high molecular organic sillicon elastomer 60-90, talcum powder agglomerate 10-40, scratch 3-10, dust 0.1-1.0, of talcum powder agglomerate 0.2-1.5, 0.05-1.0. The preparing method is: mix the high molecular organic sillicon elastomer, talcum powder agglomerate, dust, of talcum powder agglomerate and in, then place then into to form the particles. Its advantage is that, keeping the tenacity of polypropylene, the rigidity has also been increased, balancing its tenacity and rigidity, as well as its resistance to scratch, it can satisfy the requirements of elements in auto; besides, it also reduces dust, benefiting for protecting the work environment.

Description

technical field [0001] The invention relates to a high-rigidity, high-toughness and scratch-resistant talcum powder-filled polypropylene and a preparation method thereof. The prepared material can be used in the field of automobiles and home appliances, such as instrument panels, door panels, door guard panels, auxiliary instrument panels, and gloves of cars. Boxes, decorative pillars and other automotive interior and exterior decorations belong to the technical field of polymer processing. Background technique [0002] Instrument panels, door panels, etc. are relatively important components in car interiors, and their shape and surface condition are the key to the appearance of a car. In the past, the method of attaching fabric to the frame of the instrument panel was mainly used to increase the aesthetic feeling. Due to the relatively complicated processing technology and high price, it has been gradually replaced by the method of not covering the skin in recent years, but...

Claims

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Application Information

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IPC IPC(8): B29C47/40C08K3/36C08K5/36C08L23/12
Inventor 张祥福周文汪勇
Owner SHANGHAI PRET COMPOSITES
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