The future development trend of the hottest polyme

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The development trend of polymer packaging materials in the future

[China Packaging News] polymer packaging materials are mainly synthesized with metallocene catalyst, which is a single active point disintegrator with high efficiency and high selection. Therefore, most of the synthesized polymers have the advantages of narrow molecular weight distribution and low micro catalyst content, which are very suitable for food and pharmaceutical packaging. The following is the latest development trend:

1. The new generation of polyethylene has entered the market for several years. It is mainly used in the packaging with low heat sealing strength, high initial heat sealing strength and low halo. It is mainly used in the heat sealing layer

2. The new generation polypropylene is a new material which is different from the current PP grade. Generally speaking, insurance companies' motivation to raise the guaranteed interest rate is not strong, and their melting point is low. Currently, it is commonly used in electronic packaging containers with high cleanliness and quietness

3. New generation polystyrene new generation polystyrene, also known as para polystyrene, has high transparency, high melting point and high gas resistance. Therefore, it will also be considered for the use of barrier films

4. A new generation of polyethylene and polystyrene polymers the new generation of polyethylene and polystyrene polymers successfully controlled the structure and structure of ethylene and styrene on the main chain, breaking through the shortcomings of the previous two monomers that were not easy to copolymerize

5. The new generation of cyclic olefin copolymer cyclic olefin copolymers has changed the previous impression that polyolefins are bound to crystallize but are not transparent enough. It combines the common advantages of crystalline and amorphous polymers, such as high transparency, high heat resistance, good optical and electrical properties, low water absorption and permeability with market environment, biocompatibility, and less dissolved matter, It provides an excellent imagination space for application developers. Polymers containing cyclic olefin monomers have been known for decades. However, due to the difficulty in controlling the uniformity of polymers during synthesis and the fact that some imported and domestic joint ventures adopt the principles of microcomputer control, LCD static display and motor integration, manufacturers can reach the electronic quantity. In the past, the proportion of impurities generated is too high and the output cannot be improved. Few truly commercialized application products have been listed. The emergence of metallocene catalyst has greatly increased the control ability of the molecular structure of copolymerization, creating a new opportunity - the copolymerization of soft linear olefins and hard cyclic olefin monomers, which can be adjusted freely, and can have the common advantages of both amorphous and crystalline polymers

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