Plastics and paper, it is more friendly to our environment. Plastics and paper play an important role in today's society. Whenever you go to a grocery store, the cashier asks if you need a plastic bag or paper bag. People may consider many different ways to choose plastic bags and paper bags. Some people may think that they can easily reuse any package at home. After all, most people can do bags of any kind, such as plastic and paper. All they want to do is buy the grocery bag they bought.
Did German chemist Alexander Parker predict that the plastic he invented in 1862 is a disaster of ecosystem? After the sailing competition at Capitan Charles Moore in Honolulu in August 1997, today is science and researcher, deciding the time of safety, heading to the huge desert of California's wind through the North Pacific . He was afraid of seeing the scenery around his yacht and the yacht passed through countless floating plastic pieces several hundred miles across the horizon. So I found "Great Pacific Garbage Patch" which is the result of human civilization. It is difficult as plastic masses began to be used in 1950 ... more
Plastics are terms of polymeric materials. In 1855, Alexander Parks invented the plastic he called Paxin, but later it was called Celluloid. Plastic was announced in London at the International Exhibition in 1862. However, until 1910 when synthetic polymers were developed, some polymers that appeared to be natural rubber were not known. In 1909, Leo Baekeland invented phenolic resin or phenolic plastic - plastic material. He rarely knows that this and other plastics will have a major impact on ourselves and the earth. His invention shows the beginning of a new "plastic age" that changed many aspects of industry and our lives. That enthusiasm has reached the discovery that plastic is labeled with future manufacturing materials.
Parkesine is considered the first artificial plastic. This plastic material was patented in 1856 at Alexander Parkes in Birmingham, England. It was announced at major international exhibitions in London in 1862. Paxin won a bronze medal at the London World Expo in 1862. Parkesine is made of cellulose (a main component of plant cell wall) treated with nitric acid as a solvent. The product of this process (commonly referred to as nitrocellulose or pyroxylin) can be dissolved in alcohol and cured to a clear, resilient material which can be shaped upon heating. By incorporating pigment into the product, it can be made like ivory.