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Polypropylene composition with low VOC (volatile organic compounds), scratch resistance and stress whitening resistance and preparation method of polypropylene composition

A polypropylene composition, anti-stress whitening technology, applied in the field of polypropylene composition, can solve problems such as poor compatibility, easy to induce silver cracks or cracks, surface scratch resistance, low surface resistivity and mechanical properties , to achieve the effects of reducing the generation of low molecular volatile organic compounds, improving scratch resistance, and solving high stress whitening

Active Publication Date: 2015-11-11
ZHEJIANG JAVA SPECIALTY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The composite material also has the characteristics of low odor, excellent surface scratch resistance, low surface resistivity, and excellent mechanical properties. Although the invention reduces VOC by adding an odor adsorbent, it improves the scratch resistance by adding a scratch-resistant agent. , but the compatibility between the odor absorber, the scratch-resistant agent and the polypropylene resin matrix is ​​not good, the dispersion is uneven, and it is easy to induce silver streaks or cracks under the action of external force, thus increasing the stress whitening of the composite material

Method used

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  • Polypropylene composition with low VOC (volatile organic compounds), scratch resistance and stress whitening resistance and preparation method of polypropylene composition
  • Polypropylene composition with low VOC (volatile organic compounds), scratch resistance and stress whitening resistance and preparation method of polypropylene composition
  • Polypropylene composition with low VOC (volatile organic compounds), scratch resistance and stress whitening resistance and preparation method of polypropylene composition

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with specific embodiments, where the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0027] Each component was weighed according to the content percentage of the product components described in Table 1.

[0028] Table 1 Low VOC, scratch-resistant and anti-stress whitening automotive interior polypropylene composition formulation

[0029]

[0030] In each embodiment and the comparative example polypropylene composition material formula, the polypropylene used is the copolymerized polypropylene of melt flow rate 20; The talcum powder mesh number used is 3000 meshes, and average particle diameter is 4.5 microns; The toughening agent used is POE; The low molecular weight long-chain alkyl polyorganosiloxane used is a product of Shaoxing Jiahua Polymer Materials Co., Ltd., the brand name A...

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Abstract

The invention provides a polypropylene composition with low VOC (volatile organic compounds), scratch resistance and stress whitening resistance. The polypropylene composition consists of the following components by weight percent: 40 to 80 percent of polypropylene, 1 to 30 percent of talcum powder, 5 to 15 percent of flexibilizer, 1 to 3 percent of low-molecular-weight polysiloxane, 2 to 10 percent of polypropylene grafted macromolecular-weight polysiloxane, 0.1 to 1 percent of antioxidant, 0.1 to 1 percent of light stabilizer and 0 to 2 percent of other additives, wherein the sum of weight percent of all components is 100. The invention also provides a preparation method of the polypropylene composition with low VOC, scratch resistance and stress whitening resistance. The polypropylene composition has characteristics of low VOC and also has good scratch resistance and stress whitening resistance.

Description

Technical field: [0001] The invention relates to a polypropylene composition, in particular to a polypropylene composition with low VOC, scratch resistance and stress whitening resistance and a preparation method thereof. Background technique: [0002] Polypropylene composite materials filled with inorganic mineral powder have been widely used in automotive interior parts in recent years, such as door trim panels, instrument panels, pillars, seat guards, etc., but due to the reaction of inorganic mineral powder fillers with resins and additives The generation of small molecule volatile organic compounds leads to higher VOC. In addition, the common polyorganosiloxane scratch-resistant agents commonly used in this system have poor compatibility with polypropylene, and the characteristics of polypropylene material itself , so it is easy to cause stress whitening. With the improvement of the requirements for automotive interior materials and the specification of the air quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08L83/04C08L83/10C08K3/34C08K5/134C08K5/3435B29C47/92B29C48/92
CPCB29C48/92B29C2948/92514B29C2948/92704C08K2201/003C08L23/14C08L2205/02C08L2205/035C08L2205/06C08L2310/00C08L23/0815C08L83/04C08L83/10C08K3/34C08K5/1345C08K5/3435
Inventor 徐力群任杰邱里勇陈双彬张文涛
Owner ZHEJIANG JAVA SPECIALTY CHEM CO LTD
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