PEN plastic bottles and PET bottles. Big PK

PEN plastic bottles and PET bottles. Big PK, in recent years abroad for PEN synthesis craft has carried on the quite a lot of improvement and perfection, monopolizing capital still on the high side, however, is the alloying become one of the useful way expand the scale of the PEN plastic bottles take over. On the one hand, under the condition of the PEN plastic performance change is not big, the life meaning production capital, moreover on the one hand, under the forward price matter scene image, greatly advance barrier property and other properties of the alloy. The present study become PEN plastic packaging industry hot topic. Because of PET plastic bottles and PEN structure approximation, is rich in history and the price is cheaper, more dominating widely in packaging industry, is the most studied is PEN/PET alloy. PEN/PET blend forming crisis lies in the compatibility of the two, the measure is the ester exchange rate, is the reasonable choice of ester exchange rate is very important. PEN/PET alloy can be used in PET stretch blow molding machine make a little change after cutting production container; PEN plastic bottles ( Poly (ethylene glycol diformate ester) Structure and PET plastic bottle approximation, we use some the benzene ring of differences, but almost in every way superior to the PET plastic bottle: five times as the barrier property of PET, and heat resistance, chemical resistance, better. Preliminary in western European countries have been dominating the PEN beer bottles on the market, fresh off and cosmetics bottles, not received impact resistance, easy to receive. Ratios over the past few years China has made some research, such as share yizheng chemical company product trade developing focus PEN synthesis and process optimization, guilin to the synthesis of PEN also test by test. Today is restricting its raw material synthesis craft is not mature. The domestic many scientific research institutions are in research, but still didn't get compromised progress; In addition to corporate counsel imported raw materials production craft, and synthesis of PEN.