Market demand leads to plastic packaging still maintaining a high growth rate
due to the impact of the global financial crisis, the world is, but FS believes that to meet the rapidly growing passenger transport demand, the growth rate of industrial production development in various countries has slowed down. However, as the world packaging industry has implemented strong alliance, transnational cooperation and other measures, the world packaging industry has made new development, packaging materials and packaging products have increased steadily, new packaging materials, new processes, new technologies and new products continue to emerge, and plastic packaging still maintains a high growth rate
I. new polyester packaging takes the lead
polyethylene naphthalate (pen), which attracts attention in the world, is a new polyester including material. Because the molecular structure of N in PE is similar to that of pet by 2020, and naphthalene ring is used to replace benzene ring, pen has better barrier properties than pet, especially gas resistance, UV linearity and heat resistance (the thermal deformation temperature of ordinary amorphous pen is 10007 ℃, while that of pet is only 70 ℃). In the near future, pen will enter the packaging field in large numbers, triggering another packaging revolution after pet
Second, new degradable plastics
with the implementation of the international environmental standard ISO14000, new degradable plastics have attracted much attention. BASF in Germany has launched a degradable polyester resin polymerized with aliphatic diols and aromatic dicarboxylic acids under the brand ecohexd, which can be used in film production. It is reported that the annual demand of degradable plastics in Western Europe is 20000 tons, and the main application fields are compost bags, garbage bags, mulching films, composite paper, fast food packaging containers and beverage cupsThe installation method of this kind of sensor and the use principle of manual measurement mentioned above are 1.
third, vigorously develop metallocene plastics.
metallocene is an organometallic coordination compound formed by the connection of transition metals and cyclopentadiene. Metallocene polyolefin is a polymer prepared by olefin polymerization with metallocene coordination compound (netallocene) as catalyst. Metallocene polymers have many advantages, such as processability, high strength, high rigidity, good transparency and other excellent properties, so they have received great attention, and therefore introduced many new products. Metallocene plastics will directly impact PP, MDPE, LLDPE and elastomer plastics. At present, the demand for PE in the world is 40million tons, which will increase to 50million tons by 2005. Most of the increase is metallocene polyethylene. Metallocene plastics have many advantages, such as good gloss, high melt strength and film stability. They are suitable for food packaging, pharmaceutical packaging, shrink film and sanitary products
IV. foamed plastics move towards zero pollution
the extruded foamed PP sheet village of Italian a-mut company is the latest development of foamed plastic products. It uses moh-tell's high viscosity resin, high melt strength polypropylene (HMSPP), PP Homopolymer and low ODP chemical foaming agent to produce foamed polypropylene sheets (EPP) with fine pores and uniform distribution. HMSPP used in foamed PP accounts for only 12.5%, which is of great economic and environmental significance: compared with PP sheets with the same performance, it has a low product density, which can save 20% of raw materials, thus saving 20% of the expenses to be paid for destroying the ecological environment. The production of foamed plastics for packaging is developing along the road of CFC HCFC HFC HC, and is now advancing towards a green process with zero ODP, low GWP and low pollution
v. strong countries jointly open up new land
in 1997, the world's PP output reached 23 million tons, and the competition was very fierce. Biaxially oriented PP film has grown rapidly in recent years. In 1997, the production capacity of BOPP in the world reached 2.82 million tons, and in 1998, it increased by 6% compared with 1997 Exxon, PMT and Bruckner are still the largest manufacturers of biaxially stretched films. The fierce competition in the international market has made companies more collectivized, rationalized production and heated competition
VI. new medical packaging is particularly gratifying
in recent years, medical plastic packaging, which is closely related to people's health, has attracted attention