Common Trend Of Plastic Packaging Materials - Plastics Industry
Common Plastic packaging materials Development PE
, PP and PET are the three most commonly used plastic packaging material. Second, Nylon And PC, PVDC and other packaging materials are also more applications.
PE Non-polar and polar ethylene copolymer and metallocene ethylene is the development of the western countries, the two hot spots.
Copolymer can improve the tensile and plastic co-extrusion performance, and increase transparency, enhance stability, improve the molecular weight distribution and rheological properties of extruded. VLDPE (ultra-low-density Polyethylene ) Is replaced by LLDPE, PP, EVA, PVC in extrusion, injection molding, blow molding process, the occupation Medicine , Cosmetics and other flexible packaging) glance. ? ? Wu nightmare called V? Proud Xuan Jie Yun R Bitis smashing ants book basket cadmium guanidine ants? Production of vinyl acetate copolymer mixture PA Bag, also ice cream, cream and other food packaging category was applied.
Metallocene polyolefin that is, the metallocene coordination compounds as catalysts for olefin polymerization obtained by the polymer. Metallocene polyethylene has many advantages, such as a good gloss, high melt strength and stability of such films for food packaging, has been the industry's attention. Generally agreed that plastic will have a direct impact on metallocene PP, MDPE, LLDPE, elastomers and other plastics) glance?
The current PE department in the world) glance loopholes class male doorpost? 0,000,000 tons, is expected to increase to 50 million tons in 2005, the increase for the most part as metallocene polyethylene.
PP PP's performance is very active, new PP grades and modified PP materials after another. As many have a modified PP Engineering Plastics Characteristics, therefore, a considerable number of areas have been replaced by plastic.
Transparent PP is the rapid development of varieties, in the medical products and medical packaging products and cosmetics packaging and application of more and more. BOPP bottle because it can withstand temperatures above 100 , so the infusion and functional beverage packaging widely applied. BOPP films are the fastest-growing varieties of plastic film. Multi-layer co-extruded BOPP film is the current development trend.
PET PET is the most active performance of plastic packaging materials.
PET bottles is the most important beverage packaging. However, PET high temperature is poor, therefore, a similar molecular structure with the PET PEN has been the industry's attention. In addition to being excellent heat resistance, PEN than PET has superior barrier properties, especially the gas barrier and UV resistance. The near future, PEN will have entered the field of food packaging, triggering PET packaging revolution after another.
PC PC can be counted as engineering plastics used in packaging the largest species. This is so because the manufacturer has developed a water bucket for that purpose. PC is the demand for engineering plastics in one of the largest varieties. But in addition, PC has not yet found in the packaging field for more useless.
PVDC, EVOH and nylon As a barrier plastic packaging material, PVDC, EVOH and nylon in the packaging area are mainly the role of emerging composite materials. EVOH and nylon films which are mostly used for composite materials to replace the aluminum foil barrier layer to do, but currently use? Wai is not very extensive. PVDC barrier as the more common materials, mainly used for coating. Largest application in China is to produce smoke film, but the application in food industry has become more widespread.
Main development trend of plastic packaging products
by: gaga
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