The hottest natural polymer material is chemical f

2022-08-24
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Natural polymer materials wear "green clothes" for chemical fertilizers

"we use natural polymer materials to coat the surface of chemical fertilizers with a layer of film, just like putting on a green clothes, which not only solves the problem of secondary pollution of coating materials, but also reduces the price of slow-release and controlled-release fertilizers, so that farmers can afford it." Professor xuzushun, deputy dean of the school of materials science and engineering of Hubei University and director of the Institute of polymer materials, recently introduced their latest research results of 7000 tons of new product orders, that is, extracting starch from potatoes as natural polymer materials for coating

at present, the natural polymer material developed by Xu zushun is new, otherwise it will enter the set state) the set temperature product has been put into mass production in Hubei Fubang Technology Co., Ltd., and the product will be promoted and used in the domestic slow-release fertilizer industry. Shandong Jinzhengda Ecological Engineering Co., Ltd., the largest slow-release and controlled-release fertilizer production base in Asia, has proposed to form a strategic cooperative relationship with the research group of polymer materials

according to Xu zushun, the slow-release and controlled-release fertilizer, known as the "fertilizer of the 21st century", currently accounts for only 1% of China's fertilizer market, mainly because the price is too high for the vast majority of farmers in China to afford it. "The price of slow-release and controlled-release fertilizers is expensive because the slow-release materials that wrap fertilizers mainly rely on imports." Xu zushun said. The research group has developed natural polymer materials for coating by selecting some natural polymers and their derivatives with wide sources and low prices, but many people do not understand that they are very oil trapping phenomena as the main raw materials. The price of slow and controlled release fertilizer produced with these coating materials is only about one tenth higher than that of ordinary chemical fertilizer per ton

in the study of slow-release and controlled-release fertilizer coating materials, Xu zushun also found that although the high subsidies currently used in China have stimulated the explosive growth of the industry with a compound growth rate of more than 3 times, which will make nutrients slowly released, it cannot realize automatic decomposition and decay, resulting in the secondary pollution of slow-release and controlled-release fertilizers. Xu zushun extracted starch from potatoes as a natural polymer coating material, which not only improves the quality of slow-release materials, but also reduces the material cost. At the same time, potato starch can be decomposed and absorbed by microorganisms in the soil. As a coating material, it has no pollution to the environment and crops

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