Photosensitive synthetic stone raw material composition and production method of photosensitive synthetic stone

Abstract

The invention discloses a photosensitive synthetic stone raw material composition and a production method of a photosensitive synthetic stone. The synthetic stone which not only has a photosensitive function but also is antistatic is successfully manufactured by means of addition of a certain percentage of tin dioxide and antimony trisulphide into raw materials. The invention provides a production process which is low in cost and stable in performance. The production process comprises the following steps: (1) mixing the raw materials of nano-silica and nano calcium carbonate in a ratio of 1:1 and manufacturing into nanofillers; (2) pouring the raw materials of epoxy resin, tin dioxide, antimony trisulphide and the nanofillers in the step (1) in a weight ratio of 10:1.25:1.25:1 into a preparation container to mix uniformly; (3) getting the mixture in the preparation container, and forming a laminated magnetic conductive board prepreg through glass fiber impregnation; and (4) getting the laminated magnetic conductive board prepreg in the step (3), and pressing to form the finished photosensitive synthetic stone at the temperature of 270 DEG C. The production method of the photosensitive synthetic stone has the advantages of enhancing competitiveness of products in a market, being favorable for market sales of the products and worthy of promotion.

Description

technical field [0001] The invention relates to a photosensitive synthetic stone raw material composition and a production method of the photosensitive synthetic stone. Background technique [0002] Synthetic stone is mainly a composite material made of epoxy resin and glass felt fiber, which has the characteristics of low thermal conductivity, flame retardancy, high temperature resistance, antistatic, light weight, and chemical corrosion resistance. Synthetic stone has the ability to maintain its physical properties in high-temperature environments, and is now widely used in electronics manufacturing and welding protection materials. In the welding process, in order to prevent the static electricity generated by the synthetic stone material from affecting the welding process, the synthetic stone is usually made of anti-static material so that its surface resistance is 10 5 -10 9 between ohms. [0003] At present, the surface of synthetic stone on the market is black, tha...

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Problems solved by technology

[0003] At present, the surface of synthetic stone on the market is black, that is, by adding conductive carbon black filler, the product has antistatic effect and meets the requirements of welding process. With the development of welding technology in the electronics manufacturing industry, the current black synthetic stone Stone can no longer meet the needs of welding technology. The current welding technology requires synthetic stone to have a photosensitive effect, that is, the welding protective material should be sensitive to light, and it is also required that the welding protective material has an antistatic effect. The existing materials can no longer meet the requirements. The needs of the production process

[0004] The main problem of existing products is that the surface of the product is black, which cannot meet the light-sensitive effect of welding protective materials, and can no longer meet the requirements of the current welding process.

In order to improve the photosensitivity of the product, some people use metal powder for antistatic treatment. Although the conductivity and photosensitivity of the metal powder can meet the needs, the metal powder is easily oxidized and has poor corrosion resistance.

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