Scratching-resistant, wear-resistant and aging-resistant composite spraying film non-woven fabric material

Abstract

The invention discloses a scratching-resistant, wear-resistant and aging-resistant composite spraying film non-woven fabric material. The scratching-resistant, wear-resistant and aging-resistant composite spraying film non-woven fabric material comprises a protecting layer, a weather resistant layer and a medium layer. The weather resistant layer is prepared from, by weight, 100 parts of polypropylene, 3-10 parts of color master batch, 0.4-1 part of antioxidant, 0.1-0.2 part of stabilizer and 0.3-0.5 part of ultraviolet light absorber. The spraying film non-woven fabric protecting layer is prepared from PET, and a PET film has the advantages of being good in optical performance, flat and smooth in surface, good in heat stability, small in shrinkage percentage, resistant to light aging and the like; as the surface hardness is high, the surface of the product can be protected and is not prone to scratching; as a single silicon film is adopted, it can be guaranteed that the single silicon film can be easily disassembled after being damaged or aged, and the attractiveness of the product cannot be influenced. The spraying film non-woven fabric weather resistant layer is prepared from PP modified resin; as the modified resin is added into the product, the weather resistance can be improved, and the surface quality of the product is improved by adding the color master batch.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a scratch-resistant, wear-resistant and aging-resistant composite coated non-woven fabric material. Background technique [0002] With the development of composite materials, composite materials have been widely used due to their specific strength, high specific stiffness and light density. One of the current development trends of composite materials is to replace traditional thermosetting epoxy composite materials with thermoplastic composite materials. One of the reasons is that thermoplastic composite materials can be formed by simple heating, melting and cooling, and can be welded like metal. Therefore, the development of thermoplastic composite materials will bring about great changes in the future market. However, in the preparation of thermoplastic composite materials, due to the characteristics of the processing technology of the material itself, i...

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Problems solved by technology

However, in the preparation of thermoplastic composite materials, due to the characteristics of the processing technology of the material itself, it is impossible to add a large amount of anti-ultraviolet absorbers, wear-resistant agents, etc. during the production process. If they are added, it will affect the fluidity of the thermoplastic resin, thereby reducing Due to the mechanical properties of the material, the use of composite materials for outdoor products is rarely used; due to the low resin content, more fiber reinforced materials, and less resin volume content, the surface of the product is not smooth enough, and the glass fiber is exposed.

In products with color requirements, the color dispersion of the product is uneven; because most of the thermoplastic composite materials are non-polar materials, there are few polar bonds on the surface, and the adhesion is poor, and the product can be remolded, so it is impossible to add thermosetting adhesive Therefore, how to improve its surface quality restricts the application of thermoplastic composites

[0003] At present, although there are many non-woven fabrics in China, there are various forming methods, such as needle-punched non-woven fabrics, spunbonded non-woven fabrics, melt-blown non-woven fabrics, and heat-bonded non-woven fabrics. However, coated non-woven fabrics are still in their infancy. Most of them use non-woven fabric as the base layer, single-sided or double-sided coated resin, which is basically used for packaging materials, packaging bags, clothes, etc. For its surface and weather resistance, it cannot be used outdoors for a long time. Foreign DuPont companies have introduced thermoplastic composite materials. The laminated non-woven material for the material veneer, but its price is high, the minimum order quantity is large, the delivery cycle is long, and there is even a phenomenon of no agency in China

This restricts the development of domestic thermoplastic composite materials, and the domestic molding equipment and technology of coated non-woven fabrics are still in the development stage, and it is impossible to produce products of the same quality or even slightly inferior to foreign ones.

[0004] Chinese patent CN 1046944039 A A double-sided coated non-woven fabric and its preparation method discloses a double-sided coated non-woven fabric with a three-layer structure consisting of a protective layer, a non-woven fabric layer and an adhesive layer. Although the woven fabric can solve the problem of uniform distribution of product surface quality and surface tinting power during the production process, it cannot endow the product with anti-aging and scratch resistance, and the product surface is PP film, which has extremely poor UV resistance. , so it cannot meet the long-term outdoor use, which greatly reduces the practicability of the product

Moreover, the structure of the coated non-woven fabric is provided with an adhesive layer, which virtually increases the cost of the coated non-woven fabric, making it unfavorable for promotion and sales.

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