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Research and development of adjustable speed degradable plastic agricultural film
PVC plastic network news: recently, it is reported that Japan has successfully developed adjustable speed degradable agricultural plastic films, this new type of film solves the problem that agricultural plastic films can be degraded after being buried in the soil for 1 to 5 years.
It is known that the research and development is jointly researched and developed by the research team led by Kimura Longfu of the Graduate School of Utsunomiya University in Japan and the Tochigi antibacterial research institute, the adjustable speed degradable agricultural plastic film was successfully developed by adjusting the proportion of fine calcium compound in the fan shell, which is the main component of degradable plastic.
researchers use three kinds of degradable plastics as basic materials, and add calcium oxide and calcium hydroxide micropowder developed by antibacterial research institute, after using pepper and neem micropowder as modified materials to make plastic film, the test tube was added with water to decompose and the soil was buried. It was found that 30g of basic material and 3g of modified material were heated and mixed to make 0. For a 1mm thick film, the weight loss rate is about 25% to 40% 60 days after the decomposition test is started by adding water. Without adding modified materials, the weight loss rate is only 1% to 1. 8%.
The experiment also found that the thin film added with calcium compound can promote the transition from acidic soil to neutral after decomposition in soil. At the same time, due to the addition of pepper, Azadirachta indica and other components, this kind of adjustable speed degradable plastic agricultural film can also play a role in controlling diseases and insect pests.
The development of plastic agricultural film which can degrade and improve the soil by speed regulation is a supporting agricultural project jointly launched by Zuli Bank, Tochigi county government and Nomura Securities in 2010, the aim is to solve the problem of waste treatment of plastic films commonly used in agricultural materials. The speed-adjustable degradable plastic buried in the soil not only protects the environment but also saves labor, and can solve the problem that agricultural plastic film can be degraded after being buried in the soil for 1 to 5 years.
The successful development of the adjustable speed degradable plastic agricultural film marks the world far away from'White pollution'It's not far away.