Shanghai Daoqin Plastics Co., Ltd.

PET is white or shallow color high degree crystallization polymer, surface slip has gloss. in relatively wide temperature degree scope/range inner tool has excellent material mechanical properties, long use temperature degree can high 达120℃, melting point: 250-255℃, 25℃时 density: 1.68g/cm3.   

PET材 material excellent disadvantages:

PET材 material recycling utilizing process in must for recycling material quality identification, need lower this 几招就 can light 松搞定.  

一, 烧 

PET烧起 部 separation if separation or 者油滴 very fast, more melting point positive 常, this in PET film sheet/slice in has. generally bottle sheet/slice melting point has issues.  

二, 闻 

PET in 燃烧时 味道 different generally plastics, to non 常芳香 and 舒适 味道（随便烧 bottle 子 闻闻）; if PET里含 has its it formed separation, 味道就 very 刺鼻. has types bottle 子里面含 has SEBS formed separation, recycling 时就不 can use.  

三, 拉 

in PET烧 时候拉一 lower filament, wire drawing long degree, rear filament 拉断, in 间 断点, filament is is formed small 圈状, 卷 越 more melting point high.  

most rear is key/critical is separation material in is has PVC. has PVC PET recycling material 几乎无 method utilizing. specific can through rear in cationic light 充足 方, sample color separation. PVC in cationic light lower 呈淡蓝 color, if for in has white 折痕. above is identification, property has 限, main/primary experience.

need 想准确 identification PET材 material in is has PVC, need 先买一 烘箱.  

四, 烘

temperature degree to 250℃, will sample in in semi small 时, rear sample 进行观察.

if sample surface non more color 斑点, sample has PVC. if sample in in very fast melt 化, sample melting point relatively low （PET melting point: 250-255℃）.  

看 upper introduction identification PET recycling material methods, versus 信您就 can light to high quality PET recycling material.