The plastic bag history
A cameraman creation having led to initial plastic in experiment inside the dark room. That Alexander ・ Pakesi has a lot of hobby , film is one of which. People is not able to buy the ready-made photographic film and chemicals like this like today , self makes be obliged to often the thing needing when 19 centuries. Therefore every cameraman is simultaneous also must be a chemist. One of the material being put into use in film is a collodion , it is one kind of saltpetre cotton solution , the viz. is in nitrate cellulose solution in alcohol and ether. It was used photosensitive chemicals to be glued on glass at that time , was done equal photographic film today similar to making thing. In 19 centuries fifties,Pakesi has checked the method handling the collodion diversity. A day , he are trying blending the collodion and the camphor. Use his amazed being , blend have produced a kind of but curved hard queen material. Pakesi says that matter is Pakexin , that is the earliest plastic. Pakesi uses Pakexin to make having made the article of all kinds: The comb , pen , button and jewelry seal adorn a product. Pakesi has not been of great commerce mental consciousness but, has stood a loss of money and on the venture as early as self. When 20 centuries, people starts the use excavating the new of plastic. By some, kind of plastic makes almost all articles for use inside the family all can out. Continue developing Pakesi's achievement and earn profit out of right away leave for the inventor goes to have composed other. John ・ Wesley ・ Haiyate comes from the New York pressman so having seen this chance on 1868 , the company who one made a table tennis at that time complains about elephant's tusk shortage. Haiyate has improved fabrication working procedure , has given Pakexin (give exegesis or explanation in case that the elephant's tusk translates) a new name celluloid moreover. He has got a ready-made marketplace from table tennis manufacturer there, and has used plastic to make not too long after that right away making the all kinds of product. Model T plastic is easy to be on fire, have been restricting the range using it to make a product right now. The first being able to be able to bear the high temperature plastic successfully is that Beikelaite (is that phenol is to self's heart's content plastic translates notes). Leo ・ Beikelande has gained that patent on 1909.
In 1909, American Beikelan has composed phenol aldehyde plastic first. 1930's , the nylon have come out, fibre silk better than being be composed of coal , air and water , thin , harder than iron and steel than cobweb is called. The various plastic of queen invention sum produces their turn up for this purpose having establish a basis. The plastic raw material has substituted coal with petroleum , manufacturing industry has also got plastic since Second World War is hit by development of petrochemical industry, at full speed development. Plastic is one kind of very light matter , is therefore likely to make it deliquesce with very low temperature warmup, make up into various form thing arbitrarily. The plastic product color is bright-coloured , weight is not afraid to fall gently, economy is durable, not only its coming out having brought about a lot of development of the industry having gone to the lavatory , driving also tremendously for people's life. The plastic invention is less than but, 100 years , has no alternative handle these being full of the thing bringing extremely large threat to extremely large threat human being living environment in life, but have bestowed great care to but now if people was that their coming into being is jubilantly happy at that time. Plastic is from the chemistry petroleum products drawing in petroleum or coal, once producing from very difficult natural degradation coming out. The plastic reason also is not good in depraved degradation in ground for 200 years , waste fills large amount of plastic bury Tongtou that can destroy soil nature, makes soil hardened in ground,growth affecting plant's. If the cattle has eaten the plastic sneaking into feed or being left over in the open country by accident, also be able to bring about dying because of digestive tract obstruction.
At present, Chinese plastic annual output is 3 ten thousand tons of O0, amount of consumption above 6 million tons. The whole world plastic annual output is 100 million tons , secretly scheme against if 15%'s plastic abandons amounts according to every year, annual plastic of the whole world abandons amounts being 15 million tons , Chinese year plastic abandons amounts above 1 million tons , proportion in abandoning plastic in the rubbish accounts for to 40%, such great quantity's abandon plastic being buried as the rubbish in ground , bring bigger pressure to bigger pressure the land originally right away, being short of but plowing beyond doubt. Plastic brings about convenient at the same time in the life giving people , has also brought about the future trouble being difficult to punish for environment, people calls the disaster that plastic brings about to the environment white pollution . At present, many countries all adopts (the regeneration burning hot sources of energy) or the way processing fabrication (products regenerates's) again handles to abandon plastic. This two kinds way are made abandon plastic being regenerated make use of, have reached the purpose saving resource. Because abandoning plastic may produce the gas , the environment contaminating bad for the human body when burning or processing again , being able to say the treatment abandoning plastic is environmental protection so far still but in working make peopel one big difficult problems of headache
Plastic bags have found their way into a wide area of everyday life. They are applied in big supermarkets, ordinary shops, small stores and street markets. People put in plastic bags everything they buy. They no longer need to carry cloth bags, leather bags or basket bags with them when go shopping. Obviously it is very convenient for plastic bags to be used in people’s everyday life. They are also very cheap. They are usually offered free of charge.
However, plastic bags also bring us side effects. Some people throw away plastic bags causally. This causes the white pollution to our environment , which is very harmful because plastic bags can not disappear by natural decomposition. This is certainly not beneficial to our future.
People have to be careful with the use of plastic bags. They should make sure they put the sued plastic bags into the dustbin when they want to dispose of them. It also might be better for people to use the traditional cloth bags to hold the goods they buy instead of using plastic bags.
版权声明：本文为原创文章，版权归 admin 所有，欢迎分享本文，转载请保留出处！