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Do you know the plastic packaging industry?
2021-05-13
Welcome to the news page of Wuxi Meishang Packaging Company.
Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Plastic bottles are widely used as raw materials of polyester (PET), polyethylene (PE), and polypropylene (PP). After adding corresponding organic solvents, they are heated at high temperatures and then blow molded, extruded, or injection molded through plastic molds. Plastic container.
It is mainly used for liquid or solid disposable plastic packaging containers such as beverages, food, pickles, honey, dried fruits, edible oil, and agricultural and veterinary drugs. Plastic bottles are not easily broken, low cost, high transparency, and food-grade raw materials.
According to their own properties, plastics can be divided into two categories: thermoplastics that can be melt-molded repeatedly and can basically maintain their characteristics and thermosets that can only be melt-molded once. According to its use, it can be divided into general plastics with a wide range of applications, low prices, and good overall performance, such as PE, PP, PVC, PS, and amino plastics have good physical and mechanical strength, and may be used in engineering machinery instead of metals. Engineering plastics such as: ABS, nylon, polyester, POM, TPX-1, etc. And a class of engineering plastics with particularly excellent performance, such as special plastics with particularly good radiation resistance and high temperature resistance, such as: polyarylsulfone, liquid crystal polymer, etc. According to the molecular crystal size of thermoplastic resins, thermoplastics can be divided into amorphous polymers and crystalline polymers.
Plastic packaging refers to plastic packaging. Plastics are mainly made of synthetic or natural polymer resins. After adding various additives, it has ductility under certain temperature and pressure, and can fix its shape after cooling. The process in which natural or synthetic polymer resin molecules are in a molten state and the auxiliary molecules are evenly distributed around it is called plasticization. The process that has reached this process is called plasticization, and it has not been reached, and is considered to have not been plasticized.
Plastic packaging is one of the four major materials in the packaging industry: paper and cardboard accounted for 30%, plastics accounted for 25%, metal accounted for 25%, and glass accounted for 15%. The above two 25% fully illustrate the importance of the plastic packaging industry. Although the plastic packaging industry is the second largest packaging material, its practicality is not as good as paper and cardboard packaging. However, the plastic packaging industry is growing at a rate of 5% each year, while other packaging materials, including paper and cardboard, metal, glass, ceramics, hemp and cotton, etc., are only growing at a rate of 2%. For this reason, the plastic packaging industry will one day Will surpass paper and cardboard and become the first packaging material.
China's modern packaging industry has developed rapidly since the implementation of the reform and opening up policy. After 30 years of development, China’s packaging industry has become an independent, complete and complete industrial system with paper, plastics, metal, glass, packaging and printing, and packaging machinery and equipment as the main industries. Bohai Bay is the packaging industry pattern in the key area.
Labels: plastic bottles, plastic packaging, Wuxi Meishang Packaging Company,
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