Develop naturally degradable plastics to replace commonly used ordinary plastic products have become a hot topic in the 1990s of the last century , but at that time because of the cost of biodegradable plastics and technical problems , slow development . However , Japanese researchers recently developed a high-temperature plastic film , can withstand 425 degrees Celsius maximum temperature .
According to reports, the Japan Science and Technology Agency and other researchers used E. coli through transgenic manipulation and light reaction and other methods, to produce bioplastics under the high temperature of about 400 degrees Celsius will not be deformed . The previous highest temperature resistant bioplastic is 305 degrees Celsius.
Japanese researchers noted that some actinomycetes secrete an amino cinnamic acid has a very strong structure . The researchers found that on the basis of this recombinant E. coli , and then use it to make sugar fermentation under natural conditions produce almost nonexistent "4 - amino- cinnamic acid ."Masking tape
Researchers of the photoreactive polymer , and the like , with a "4 - amino- cinnamic acid" take polyamic acid polymerization , and then heated to make a film at 150-250 ° C Polyamide vacuum . This film is difficult to burn , can withstand high temperature 390-425 degrees Celsius . Allegedly, this bio-plastic is transparent, particularly high hardness , used instead of glass on the car , can greatly reduce vehicle weight , saving energy , reducing carbon dioxide emissions.Wholesale masking tape
At present, China biodegradability of plastics can not fully meet consumer demand, despite the current market has many varieties , but the mechanical and processing properties of each material itself is just one aspect of a prominent feature, integration still exist lack of this or that , this will be one of the bottlenecks in the application of its market promotion .Washi tape
While the development of biodegradable plastic products , domestic enterprises should pay attention to accelerate with independent intellectual property rights , developing innovative products and applications. Because , biodegradable plastic products abroad for R & D and production applications relatively early , have applied for many patents , giving domestic companies to develop new products, resulting in a certain amount of technical barriers. Take polylactic acid patents to examples, in 2005 , foreign polylactic acid number of patents relating to 1700 , and our published patent only 145 , of which there are more than half of the foreign company's patents. Therefore , domestic enterprises should strengthen intellectual property rights have developed products .
In China, engaged in research products processing power is still rather weak , most companies will focus focused on materials synthesis , while ignoring the product development process , some of the biodegradable plastic tableware made of heat-resistant , water-resistant and mechanical strength with the traditional plastic products are far away , and this is precisely the key to whether the mass of biodegradable plastics market-oriented .Sellotape
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