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PTMEG 1800 Used in the Production of Convention Polyurethane Elastomer

PTMEG 1800 Used in the Production of Convention Polyurethane Elastomer

PTMEG 1800 Used in the Production of Convention Polyurethane Elastomer

Product Details:

Place of Origin: CHINA
Brand Name: ExceedChem
Certification: ISO9001:2008
Model Number: PTMEG 1800

Payment & Shipping Terms:

Minimum Order Quantity: 1000kg
Price: FOB QINGDAO USD3.6/kg
Packaging Details: 200kg/drum, ISO tank
Delivery Time: within two weeks after confirming the order
Payment Terms: T/T, L/C at sight
Supply Ability: 1000tons per year
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Detailed Product Description
Appearance: Clear Liquid CAS NO.: 25190-06-1
Molecular Weight: 1800 Application: Used Extensively In The Production Of Convention Polyurethane Elastomer, Such As Spandex Fiber, Coating Agent Of Artificial Leather, Thermoplastic Polyurethane (TPU), Thermoplastic Polyester Elastomer And Others (adhesive, Foam Etc.)

PTMEG 1800 Used in the Production of Convention Polyurethane Elastomer

1. Introduction

PTMEG 1800 is a diol with a nominal molecular weight of 1800, derived from the polymerization of tetrahydrofuran (THF). Its enhanced reactivity makes it an ideal component for polyurethane applications.

 

2. Manufacturing Process

Monomer: THF                    Polymer: PTMG

C4H8O + H2O → H(OCH2CH2CH2CH2)nOH

 

3. Application

PTMEG is widely used in the production of conventional polyurethane elastomers, including spandex fiber, artificial leather coatings, thermoplastic polyurethane (TPU), thermoplastic polyester elastomer, and various other products like adhesives and foams.

 

4. Specification

Type PTMEG 1800
Appearance Clear liquid
Average Molecular Weight 1840
Viscosity, at 40℃ 510 ~ 560
APHA Color Max 20
Hydroxyl Number, mgKOH/g 59.4 ~ 62.6
Water Content, % Max 0.01
Acid Value, mgKOH/g Max 0.05
BHT, ppm 200~300

 

5. Physical and Chemical Properties

Form Liquid to waxy
Odor Odorless
Color Colorless
PH value 7
Melting point 24℃
Boiling point Min 250℃
Vapor pressure Max 0.1 mbar (20℃)
Density 0.975g/cm3 (40℃)
Solubility in water Sparing soluble (20℃)

 

6. Package

200kg Steel Drum; ISO Tank Container

 

 

7. Storage 

PTMEG is hygroscopic, meaning it absorbs moisture. This can negatively impact the reactivity of polyurethane and the physical properties of the resulting polymer. Therefore, it should be stored in sealed containers under dry conditions, away from direct sunlight. The recommended storage temperature is between 20°C and 95°C. Opened drums should be resealed immediately after use.

 

8. Handling Precautions

While PTMEG has a low odor and acute toxicity, standard industrial hygiene practices should be followed when handling it. Wear appropriate protective clothing and safety glasses to prevent unnecessary contact and accidental ingestion. In case of skin or eye contact, rinse thoroughly with water. If eye contact occurs, seek medical attention.

 

9. Fire and Explosion Hazard
PTMG polyether glycol will burn under certain condition and can explode if heated to decomposition temperature in a confined area. Polyols fires can be extinguished with water fog, carbon dioxide or dry chemicals.

 

 

Contact Details
Qingdao Exceed Fine Chemicals Co.,Ltd

Contact Person: Mr. louis.liu

Tel: 86-532-82693198

Fax: 86-532-82693196

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