phenolic epoxy, unsaturated polyester and other larger, wherein the unsaturated polyester material shrinkage is minimized. Other factors that affect shrinkage are the shape and wall thickness of the plastic parts, the thick-walled large shrinkage, plastic and glass fiber filler containing a large amount of shrinkage is small, volatile matter content is a large shrinkage also large molding pressure, the greater the charge shrinkage, heat release than the release of cold shrink large, insufficient solidification shrinkage big. Plastic bottle shrinkage is one of the important factors affecting the plastic bottles used in the use of plastic bottles to reduce the shrinkage to prevent significant shrinkage phenomenon in use, affect the actual results. The increasing mobility of poor fluidity of plastic than the average pressure, easy to produce glass fiber and resin bleed separately accumulated liquidity is too large. The molding pressure is too small and the temperature will significantly improve. Many factors affect the liquidity, to assess certain material flow, a detailed analysis must be made by individual components. Liquidity factors.
PET plastic bottle is not only widely used for packaging carbonated beverages, water, juice and tea drinks, it is the largest use of beverage packaging, and widely used in many fields such as food, chemicals, pharmaceuticals and packaging. PET plastic has a wide application in the field of packaging, whether packaging film, sheet, or beer bottles, used PET plastic. But when these materials are discarded, face the problem of how to deal with China for several ten billion annually produce PET plastic bottles, it estimated that by 2005, every year there will be 50 million tons of PET for the manufacture of PET plastic bottles. Thus recycling PET plastic bottles can not only solve environmental problems, but also can be used as a new raw material resources, alleviate the shortage of Chinese PET material contradictions. Yes, looking back at China's reform and opening up 30 years, although China in the economic field has made remarkable achievements, but also to China's environment will pose a very serious damage.
Looking for plastic bottle manufacturers, HDPE Bottle Manufacturers web site www.plastic-bottle-manufacturers.com
Looking for plastic bottle manufacturers, HDPE Bottle Manufacturers web site www.plastic-bottle-manufacturers.com