Calcium silicate high-filling polymer modified paper

Abstract

The invention relates to calcium silicate high-filling polymer modified paper, which is compounded and formed by three layers of non-plant fiber calcium silicate substrates, wherein the first layer and the third layer are prepared from 2 to 6 percent of ethylene bis stearamide, 8 to 23 percent of high-density polyethylene, 3 to 9 percent of metallocene polyethylene, 0 to 1 percent of low-molecular polyethylene, 50 to 60 percent of activated calcium silicate, 10 to 25 percent of calcium silicate inorganic powder and 0 to 3 percent of addition agents, the first layer and the third layer accounts for 25 percent of the weight of the paper, the second layer is prepared from 50 to 60 percent of activated calcium silicate powder, 10 to 25 percent of calcium silicate, 2 to 9 percent of styrene-butadiene block copolymer, 7 to 21 percent of high-intensity polyethylene materials, 4 to 8 percent of linear low-intensity polyethylene and 0 to 3 percent of addition agents, and the second layer accounts for 50 percent of the weight of the paper. The modified paper has the same appearance, whiteness, sizing degree, opacity, strength, toughness and rigidity as plant fiber paper and has simple production processes, no bacteria and poison; and because the product is used for packing paper and can replace the traditional plastic packing paper, a great amount of petroleum can be saved.

Description

technical field [0001] The present invention relates to a kind of paper, especially relates to calcium silicate (CaSiO 3 wxya 2 O) Highly filled polymer modified material, which can be used for cultural paper, industrial paper, packaging paper, building decoration paper and special paper. Background technique [0002] At present, the paper used in industry, culture, packaging, building decoration and special use in China is all made of wood, reed, straw or bagasse as the main raw materials. With the rapid development of the economy and the continuous improvement of the cultural level of the people, the scope of application of paper will become wider and wider, and the amount of use will also increase. Higher requirements are also put forward for the performance and quality of paper. At present, the raw materials used for papermaking are mainly natural plant fibers, mainly including wood, reeds and other high-fiber plant materials. These materials are increasingly scarce. I...

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Problems solved by technology

[0003] The main problems of plant fiber papermaking that people have been using for more than 2,000 years are: (1) depleting a large amount of forest resources and water resources; (3) High water absorption rate, not waterproof and moisture-proof, which limits the scope of use; (4) The paper used for packaging is not waterproof or moisture-proof, and the price is high; (5) The process is complicated and energy-consuming high

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