Plastics can be seen everywhere in our lives and are widely used. This substance appeared as early as19th century. At that time, people had learned to use natural substances such as asphalt and rosin, so it was not surprising that plastics could be invented. It was just that people just learned to nitrate natural cellulose and then use camphor as plasticizer, thus becoming the first plastic variety in the world. Later1July 907, a Belgian with American nationality registered a patent for phenolic plastic, and he made a completely synthetic plastic. This kind of plastic has low production cost and wide applications.
Since then, a kind of plastic made entirely by synthetic means has entered the market. Because of the low cost and high profit, the patent time is limited. When the patent protection expired, a large number of similar products began to flood into the market, so he chose to cooperate with his competitors, and together they established an empire made entirely of phenolic plastics and applied it. Therefore, the plastic industry has also begun a very intense development stage. You can see the shadow of plastic on everything. Later, on the basis of plastics, there are many different processes that can make plastics more diversified.
The most common use of plastic in our daily life is to hold things. It can be made into plastic bags and can bear very good weight. It can also be made into plastic straws for drinking drinks or liquids. You can also make some plastic baskets, which can hold things and so on. It is widely used in our daily life.
The above story only represents my personal opinion. Please forgive me if there is any mistake.