| 초록 |
PET(Polyethylene Terephthalate) is a linear thermoplastic polymer that is created by the condensation of PTA (Purified terephthalic acid) and EG(Ethylene glycol). But It is very high crystallization rate, it is difficult to apply for PET shrinkage Film, thick sheet, injection container and so on. For the purpose of low crystallinty, we control acid monomer by changing PTA to PIA (Isophthalic Acid), so we develop for high clearance and low crystallinity PET polymer. This study summarize that we study PET polymer property and crystallization behavior as it’s main chain-modified by changing acid and glycol monomer. |
