Development direction of the hottest plastic packa

2022-08-22
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The development direction of plastic packaging raw materials

in recent years, although the growth rate of industrial production development in various countries in the world has slowed down, due to the adoption of new measures such as strong alliance and transnational cooperation, the world packaging industry has made new development. New packaging materials, new processes, new technologies and new products continue to emerge. In some fields, the development rate of packaging materials is faster than the growth rate of packaging itself

the new polyethylene naphthalate (pen) packaging material takes the lead. Compared with pet, pen has better barrier properties, especially gas barrier and UV resistance, and good heat resistance. The thermal deformation temperature of ordinary amorphous pen can reach 100 ℃, while pet is only 70 ℃, which has broad prospects in the packaging of beverages, beer and cosmetics. Due to the progress made in the production of pen by industrial means, pen is expected to enter the packaging field in a large number in the near future, triggering another packaging revolution after pet

with the implementation of the international environmental standard ISO14000, new degradable plastics have attracted much attention. BASF in Germany launched E-co nexa, a degradable polyester resin polymerized with aliphatic alcohols and aromatic acids, which can be used in film production. According to information, the annual demand of degradable plastics in Western Europe is 20000 tons, which are mainly used in compost bags, garbage bags, mulching films, composite paper, fast food packaging containers and beverage cups

metallocene polymers have many advantages, such as better processing performance, higher noise, high strength, good rigidity and transparency, so they have attracted people's attention and many new varieties have been introduced. Metallocene plastics will directly impact PP, MDPE, LLDPE, elastomer and other plastic markets. At present, the demand for PE in the world market is 40million tons, which is expected to increase to 5 "million tons by 2005. Most of the increase is metallocene polyethylene. Metallocene plastics have many advantages, such as good gloss, high melt strength and good film stability. They are suitable for food packaging, medicine packaging, shrink film and sanitary products

extruded foamed PP sheet of Italian a-mut company is the latest development of foamed plastic products. It uses Montell's high viscosity resin, high strength polypropylene (HMSPP), PP Homopolymer and low ODP chemical foaming agent to produce foamed polypropylene sheets (EPP) with fine pores and uniform distribution, with a density of 0.6kg/m3. At present, the use of foamed PP accounts for only 12.5% of foamed materials. Compared with PP sheets with the same performance, foamed PP products have a low density, which can save 20% of raw materials, thus saving 20% of the expenses to be paid for destroying the ecological environment

in recent years, medical packaging plastics have attracted attention. According to relevant reports, drug packaging has increased at a rate of 7% per year, far exceeding the annual growth rate of 2.5% for drugs. Bayer developed polycarbonate (PC) packaging materials for intravenous injection, and branumedicaf developed polyamide (PA) materials for injection. The tablet packaging material PP developed by PCD polymers Austria is safe to use and easy to recycle. In addition, 300um transparent sheet Blister packaging produced with PP copolymer can be heat sealed by ordinary methods

packaging equipment is also developing towards environmental protection and multi-function. Modern packaging equipment is a high-tech product integrating light, machinery, electricity, magnetism, bionics and aesthetics. It develops rapidly and updates faster. Many high-tech achievements in the world will be applied in packaging equipment, such as three-dimensional laser scanning design machine. At present, in addition to developing automatic intelligent and digital packaging equipment, high-speed film making and bag making equipment, and large-scale hollow container (container barrel, hollow pallet) molding equipment with more than 1000 liters, some countries are trying to develop new packaging equipment such as energy-saving regeneration and comprehensive utilization. Its main feature is to improve the output and speed, and one machine can be used for multiple purposes. In recent years, the recycling of waste plastics has been widely valued, the recycling equipment has increased rapidly, and various crushers have complete types and specifications. Developing secondary processing equipment and processing technology and exploring new uses are another development direction of plastic packaging equipment

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