Blow molding to make hollow containers is a major aspect of the use of HDPE. Usually the hollow blow molding products are divided into commodity containers and industrial and structural products. Commodity containers are only used for packaging chemicals, lubricants and food. And industrial and structural products is a fast growing area of hollow blow molding products. The increase in consumption of industrial products was mainly driven by improvements in new processing technologies, including large blow molding hollow products and industrial parts.
Drum: the largest part of the 200-230L HDPE industrial bucket, because of its dimensional stability, transportation safety, chemical resistance and other aspects of the excellent performance. Continuing to displace steel drums, there is no other polymer that can compete with HDPE in this market.
IBC container drums: In recent years, IBC container drums have been growing rapidly in foreign countries. The annual growth OF European market is about 8%~10%, and the rapid growth of IBC packaging barrels in the United States is about 20%. IBC bucket has the advantages of saving more than 30% of transportation space, low transportation cost, convenient lifting and so on. In recent years, IBC bucket has been developing rapidly in China.
At present, large HDPE hollow products, 220L closed L-ring VAT and IBC container as the main products, has been widely used in a variety of dangerous and non-dangerous chemicals, oil and other liquids, gradually replace the metal container.
The special material for large hollow containers has high relative molecular mass and wide relative molecular mass width, and the melt flow rate (MFR) (190℃, 21.6kg) is between 2 and 10 g/10 min. High molecular weight can guarantee the high strength of melt and reduce the vertical extension of extruded billet. Suitable relative molecular mass distribution to meet the processing performance requirements. Appropriate addition of a second monomer for copolymerization to improve the performance of ESCR to meet the performance requirements.
Domestic HDPE large hollow special material brand
Large hollow industry is developing rapidly. As far as China is concerned, 200 L closed L-ring drum is still the mainstream, and the development potential is still great, but the competition is very fierce. At PRESENT, QilU 1158, Korea DaelIM 520, Shanghai JinFEI 571, China Shipping and SHELL 4261, Maoming PETROCHEMICAL TR580, Xinjiang DushanZI 5420, ZhongSHA Company 4560 have entered this field. IBC packaging barrel industry has broad prospects, compared with the current world development level of our country has a big gap, there will be a great change in the future, at present, the domestic has Zhongsha Tianjin 4560UA, Qilu petrochemical 1158, QHB07, among which the 1158 output is relatively stable.
Finally, THE AUTOMOBILE INDUSTRY DEVELOPS rapidly, AND HAS become A pillar industry of THE NATIONAL ECONOMY, AND THE MARKET popularity rate of plastic fuel TANK has reached above 60%. The demand for polyethylene special materials for automobile fuel tanks and auto parts is very huge, but the concept of environmental protection is deep and the overall macro surface is not good, which is expected to limit the demand of large hollow industry to a certain extent.
Post time: Aug-10-2022