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Japanese researchers have announced that they use E. coli to produce bioplastics that do not denature under high temperatures of around 400 degrees Celsius through genetic manipulations and photoreactions. They are the most heat-resistant among similar plastics.
A joint communique issued by the Japan Science and Technology Agency and other agencies said that the plastic is transparent and has a particularly high hardness. It is used as a substitute for glass in automobiles and can significantly reduce the weight of automobiles, thereby saving energy and reducing carbon dioxide emissions.
Bioplastics are produced using biomass from plants, etc. as raw materials, which are conducive to environmental protection. However, previous bioplastics have poor hardness and heat resistance, so their use is limited and they are generally used as disposable materials.
Japanese researchers have noticed that some aminomycin acids secreted by actinomycetes have a very strong structure. Based on this finding, the researchers performed a genetic recombination of E. coli and used it to ferment sugars to produce "4-aminocinnamic acid," which is almost absent under natural conditions.
Researchers used the "4-aminocinnamic acid" polymerization method to obtain polyamic acid by photoreaction and macromolecularization, and then heated to form a polyamide film under a vacuum of 150 to 250 degrees Celsius. This film is difficult to burn and can withstand temperatures of 390 degrees Celsius to 425 degrees Celsius, whereas the highest heat resistant temperature for bioplastics was 305 degrees Celsius.
Researchers believe that the cost of such bioplastics is relatively low compared to traditional plastics made from petroleum as raw materials and manufactured through complex processes. They are prepared to further increase their strength in the future and strive to achieve practical application as soon as possible.
What does faucet hole fit mean?
The standard size of a faucet's hole is proportional to the water flowing from the water tanks. Most manufacturers create faucets with an ideal hole size of 1 3/8 inches or 34.925 millimeters. But some Kitchen Faucets may require a broader hole that is 1.5 inches.
What is a 2 hole faucet?
A 2-hole sink usually has one hole for a single-hole faucet and a second hole for an accessory, such as a soap dispenser or sprayer. This sink might also be a bar or prep sink.
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