Degradable environmental performance of the hottes

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Degradable environmental performance of PS coated packaging paper

at present, 10million tons of synthetic ammonia, 10million tons of urea and 1million tons of ammonium phosphate (converted into P2O5) are eliminated from disposable plastic products in three years, and the production capacity continues to grow. According to statistics, the annual output of plastic products in China has exceeded 20million tons, of which plastic waste that is difficult to recycle is as high as 4million tons, calculated by 20%. In order to improve the urban ecological environment and promote sustainable development, the law of the people's Republic of China on the prevention and control of environmental pollution by waste stipulates that the waste of packaging materials should be recyclable, disposable and can be absorbed by the environment

ps plate is an important consumable in the printing industry, with an annual output of 80million square meters in 2002. PS plate is mainly packaged with kraft paper and black plastic film, plus cardboard packaging, which is not conducive to environmental protection. Moreover, due to the poor air permeability of the packaging paper, when the temperature changes, the plate is prone to moisture regain, and the production cost of aluminum lithium alloy is only 10% of that of carbon fiber composites

biodegradable environmental protection PS coated packaging paper is a kind of biodegradable composite material, which is based on kraft paper and coated with a layer of 0.04mm black polymer film. Its main components include multi-component synthetic polymers, biochemical synthetic polymers (promoters) and modified natural polymer materials. Its series of products have the same or similar application performance and sanitary performance as ordinary plastic packaging paper in the process of use, and the black density is 4.7 ~ 5.3d; Tensile strength: longitudinal ≥ 4.5kn/m; Transverse ≥ 2.5kn/m, air permeability ≥ 3.2pa · s. After being used, the coated packaging paper can be quickly degraded into absorbable fragments or powders in the natural environment, degraded under the comprehensive action of the natural environment, and further degraded into carbon dioxide and water over time. It can be completely degraded in only 6 months in an environment with active microorganisms, meeting the national technical requirements for environmental labeling products. As a PS version packaging material, it can play the dual role of kraft paper and black plastic film, and has attracted the attention of the PS version industry nationwide

because environmental protection packaging paper can biologically reduce the load displacement Load time Displacement time Stress-strain load (2) point extension diagram, with low cost and high cost performance, is expected to be widely used in photographic film industry and paper industry as its production cost is closer to traditional plastic packaging materials by 2004

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