Polytetrahydrofuran
Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. We mainly produce and sell N-vinylpyrrolidone and downstream PVP series products. Hangzhou Weitong Nano Materials Co., Ltd. is committed to providing customers with the most suitable products in line with the enterprise spirit of "integrity, innovation, dedication and cooperation".
Advantages to choose us:
1.Free sample service:
We can provide you with free samples if you want.
2.Direct factory,competitive price:
We are the manufacturer, and we produce these products by ourselves, so there is no extra payment link in the middle. We can give you the most competitive price.
3.Quality control:
We have the ISO9001 certificate, and we strictly follow GMP production standards for production.
4.Good after-sale service:
We have a sound after-sales service system, so whatever you have any doubt about the product ,you can strictly contact us , we will give you a satisfied plan.
5. What can you get from us?
You can get excellent products (strict quality control ) ,factory direct sale (favorable and competitive price),great service( after-sales services, fast delivery)and professional business consultation.
Product Introduction
Polytetramethylene ether glycol, referred to as PTMEG, is a homopolymer obtained by cationic ring-opening polymerization of the monomer tetrahydrofuran (THF) in the presence of a catalyst, which is a linear polyetherdiol with primary hydroxyl terminal group, which is a white waxy solid at room temperature, and melts into a transparent, colorless liquid when the temperature exceeds room temperature, which is easily soluble in alcohols, esters, ketones, aromatics and chlorinated hydrocarbons, and insoluble in ester fatty hydrocarbons and water. PTMEG products are divided into 250, 650, 1000, 1400, 1800, 2000, 3000, etc. according to the relative molecular weight, and the industrial production can adjust its relative molecular weight according to market needs, so as to produce products of different specifications.
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Product features
Polytetrahydrofuran uses natural gas as raw material and is produced using the heterogeneous catalyst process of the American company Invista. The product quality is in a leading position in the world. In January 2013, it passed the INVISTA PTMEG commercial qualification certification and became the first company in China to obtain the INVISTA PTMEG technology license. manufacturer, and its products are used by many companies such as Foshan Invista and Huafeng Spandex, and have received unanimous praise. Our company can provide customers with high-quality 1000, 1800, 2000 and other molecular weight products.
Application
(1) Mainly used for the production of polyurethane elastomer, spandex and ester ether copolymer elastomer.
(2) Thermoplastic polyurethane produced with PTMEG as raw material is widely used in petrochemical, machinery, military, shipbuilding, automobile, synthetic leather and other industries.
(3) It is widely used in the production of coatings and surfactants.
Storage and transportation conditions
Bulk can be filled by tankers, tankers and ISO tanks, all of which are insulated and equipped with heating coils.
Storage: Nitrogen, not with strong inorganic oxidants (e.g. nitric acid), moisture-absorbent, keep container tightly closed, preferably at temperatures above 45°C (113°F) to prevent solidification.
Product parameters
|
Product specifications |
Item |
Unit |
Quality index (enterprise standard) |
|
PTMEG(T-1000) |
average molar mass |
g/mol |
target value± 30 |
|
Viscosity (at 40 °C) |
P |
2.4～3.2 |
|
|
Molecular weight ratio |
1.92～2.07 |
||
|
Chromaticity (platinum-cobalt) |
APHA |
≤20 |
|
|
alkalinity |
meq/30Kg |
-2.0～+0.50 |
|
|
moisture |
mg/Kg |
≤70 |
|
|
Stabilizer (BHT) |
mg/Kg |
150～350 |
|
|
carbonyl ratio |
≤1.0 |
||
|
PTMEG（T-1800） |
average molar mass |
g/mol |
target value±30 |
|
viscosity (at 40 °C) |
P |
8.50～10.50 |
|
|
molecular weight ratio |
1.80～2.06 |
||
|
chromaticity (platinum-cobalt) |
APHA |
≤20 |
|
|
alkalinity |
meq/30Kg |
-2.0～+0.50 |
|
|
moisture |
mg/Kg |
≤70 |
|
|
Stabilizer (BHT) |
mg/Kg |
150～350 |
|
|
carbonyl ratio |
≤1.0 |
||
|
PTMEG（T-2000） |
average molar mass |
g/mol |
target value±30 |
|
Viscosity (at 40 °C) |
P |
11.00～14.00 |
|
|
molecular weight ratio |
1.80～2.06 |
||
|
chromaticity (platinum-cobalt) |
APHA |
≤30 |
|
|
alkalinity |
meq/30Kg |
-2.0～+0.50 |
|
|
moisture |
mg/Kg |
≤80 |
|
|
Stabilizer (BHT) |
mg/Kg |
150～350 |
FAQ