POLYETHYLENE TEREPHTHALATE
High-viscosity polyethylene terephthalate CHIP
Vesthim Company Ltd suggests for supplying high-viscosity polyethylene terephthalate CHIP for manufacturing bottles for water, strongly sparkling drinks, different types of seed oil, packaging of food products.
Polyethylene terephthalate or PET is a linear thermoplastic polyester. It is produced of ethylene glycol with terephthalic acid or its dimethyl ether. PET has a various commercial use due to its wide range of properties.
PET characteristics
PET is a white, odorless solid. It has high chemical stability to such materials, as: gasoline, oils, fats, alcohols, ether, diluted acids and alkalis. Polyethylene terephthalate is insoluble in many organic solvents and in water. It’s soluble only at 40-150°C in phenols and their alkyl and chlorine-substituted, aniline benzyl alcohol, chloroform, pyridine, etc. It is nonstable to ketones, strong acids and alkalis. It has enhanced resistance to water vapor. It is a high strength, thermoplastic (in heated and cold condition), tough and lightweight material. This plastic is not toxic. PET products retain their properties at low temperatures up to – 40°C and at high temperatures up to +70°C.
PET application
One of applications is manufacturing PET bottles for beverages and food products, as far as PET has remarkable barrier properties and ability to control its crystallinity. Preforms for PET bottles are produced by injection molding.
Technical specification
Product name: High-viscosity polyethylene terephthalate CHIP
|
Indices |
UOM |
Specification |
Value |
|
|
Lower |
Upper |
|||
|
Appearance |
- |
White chips without foreign inclusions |
White chips without foreign inclusions |
|
|
Intrinsic viscosity |
dl/g |
0,78 |
0,82 |
0,80 |
|
Mass of 100 chips |
g |
- |
2,0 |
1,6 |
|
Melting point |
°C |
243 |
249 |
245 |
|
Color: Index L |
- |
82 |
- |
84 |
|
Color: Index B |
- |
- |
1 |
-5 |
|
Mass fraction of acetaldehyde |
ppm |
- |
1,0 |
0,4 |
|
Carboxy group content |
m_/kg |
- |
40 |
21 |
|
Mass fraction of moisture |
% |
- |
0,3 |
0,1 |
|
Mass fraction of dust |
% |
- |
0,01 |
0,00 |
|
Hygienic rating |
||||
|
Smell of aqueous extract |
Grade |
max 1 |
<1 |
|
|
Flavor of aqueous extract |
- |
not allowed |
n/a |
|
|
Change in color and clarity of aqueous extract |
- |
not allowed |
colorless transparent solution |
|
Package: big bags 1050 kg.
Country of origin: Russian Federation.