Oil bottle grade PET chips resin
Product introduction
CZ-318 have low heavy metal content, low content of acetaldehyde, good color value, stable viscosity. With a unique
process recipe and advanced production technology, the product possesses excellent transparency and can satisfy
the thicker and more varieties processing requirements of small-package edible oil bottles、liquor bottles、medicine
bottles and sheets, possessing the features of low processing temperature, wide scope in processing, excellent
transparency, high strength and high finished product rate.
Techncal index
Ttem | Unit | Index | Test method | |
Intrinsic Viscosity (Foreign Trade) | dL/g | 0.820±0.02 | ASTM D4603 | |
Content of acetaldehyde | ppm | ≤1 | Gas chromatography | |
Color value | L | 一 | ≥82 | HunterLab |
b | 一 | ≤1 | HunterLab | |
Carboxyl end group | mmol/kg | ≤30 | Photometric titration | |
Melting point | ℃ | 243±2 | DSC | |
Water content | wt% | ≤0.2 | Weight method | |
Powder dust | ppm | ≤100 | Weight method | |
Wt. of 100 chips | g | 1.55±0.10 | Weight method |
Applications:
Bottle grade polyester chips have been developed and produced according to the higher strength、isolation、
transparency and better processing feature etc. special using properties required by bottles for carbonated drinks,
small-package edible oil bottles、liquor bottles、medicine bottles、washing cosmetics bottles、wild-mouth bottles
and PET sheets.
Typical processing conditions
Drying is necessary prior to the melt processing to prevent the resin from hydrolysis. Typical drying conditions
are an air temperature of 160-180 ℃, 4-6 hours residence time, dew-point temperature below -40 ℃ .
Typical barrel temperature about 275-295 ℃ .
Package:
1100kg/bags
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