Low glossiness nonreflecting soft-touch effect automobile interior material and preparation method thereof

Abstract

The invention discloses a low glossiness nonreflecting soft-touch effect automobile interior material and a preparation method thereof. The low glossiness nonreflecting soft-touch effect automobile interior material is prepared from the following raw materials of, in parts by weight, 15-40 parts of high-strength and high-melt-index co-polypropylene, 20-30 parts of carbon fiber, 30-40 parts of thermoplastic elastomers, 5-10 parts of mica powder, 2-5 parts of maleic anhydride grafted polypropylene, 0.1-0.5 part of an antioxidant, 0.5-1.5 parts of anti-glass fiber exposure agents and 0.1-0.5 partof a lubricating agent. The automobile interior material has low glossiness, non-reflection, soft touch effect, low smell and low VOC.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a low-gloss non-reflective soft-touch automotive interior material, and also relates to a preparation method of the low-gloss non-reflective soft-touch automotive interior material. Background technique [0002] For instrument panel materials, not only excellent hand feeling, beautiful texture, suitable gloss and color tone are required, but also excellent performance is required. At present, according to the molding structure of the instrument panel used, it is divided into a hard instrument panel and a soft instrument panel. As long as the hard instrument panel is injection molded by PP, PP / EPDM copolymer mixture, ABS and other materials, the process is simple, the technology is mature, and the material is cheap. As people have higher and higher requirements for the beauty and comfort of the interior, the hard instrument panel is gradually replaced by the soft inst...

AI Technical Summary

Problems solved by technology

These complicate the production process of the instrument panel and increase the cost

[0003] Chinese Patent Publication No. CN 103254498 A discloses a low-gloss polypropylene composition, which comprises 10 parts of polypropylene, 1-6 parts of matting masterbatch containing mineral powder, 1-5 parts of toughening agent and chopped 1 to 2 parts of glass fiber. The products of this composition have the characteristics of low gloss and high strength. The gloss is reduced by glass fiber and mineral powder. The product does not have a soft touch and is limited in the use of automotive products.

[0004] Chinese Patent Publication No. CN 105504520 A discloses a soft-touch, low-gloss polypropylene composition, which consists of the following components in mass percent: 55-75% polypropylene, 1-5% nucleating agent, K resin ( Styrene-butadiene transparent impact-resistant resin) 5-20%, silicone material 5-20%, additives 1-5%, through the K resin, the gloss of the material is reduced and the fluidity of the silicone material is increased to make the material have a soft touch. Density requirements are limited in automotive product applications

The composition comprises the following components in terms of mass percentage: 20-48% of polypropylene, 30-40% of elastomer, 20-30% of filler, 1-10% of compatibilizer, 0.1-1% of processing aid; Body, glass fiber, wollastonite and other materials. The products of this composition have the characteristics of low gloss, no warping, and soft touch. However, the melting index of the material is too low, which limits the use of the material in automotive interiors.

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