Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Base Chemicals Functions
- Technologies
- Structual Formula
Poly(Tetramethylene Ether) Glycol
Features & Benefits
- Base Chemicals Features
- Product Highlights
PTMG 650 shows the following outstanding characteristics as a soft segment of polyurethane and polyester resins. The resins obtained are used over a broad range of applications, from common consumer goods such as garments, to the industrial materials such as machine parts. Applications are expected to continue to grow.
- Impact resilience
- Hydrolysis resistances
- Low temperature flexibility
- Wear resistance
- Tear resistance
- Fungus resistance
Applications & Uses
- Markets
- Applications
Properties
- Appearance
- Colorless transparent liquid, Solid white wax Colorless transparent liquid when melted
- Typical Properties
- Specifications
- Note
* - Mn = 112.2 × 1000 / OHV
| Value | Units | Test Method / Conditions | |
| Freezing Point | 11 | °C | - |
| Flash point | 237 | °C | - |
| Specific Gravity (at 40/4°C) | 0.982 | - | - |
| Viscosity (at 40°C) | 160 | mPa.s | - |
| Value | Units | Test Method / Conditions | |
| Average Molecular Weight (Mn)* | 600 - 700 | - | Calculated by using hydroxyl value |
| Color | max. 40 | Hazen | Similar to JIS K 1557 and JIS K 0071-1 |
| Hydroxyl Value | 166 - 180 | mgKOH/g | Substantially similar to JIS K 1557 |
| Water Content | max. 150 | ppm | Substantially similar to JIS K 1557 |
| Acid Value | max. 0.05 | mgKOH/g | Substantially similar to JIS K 0070 |
| Volatile Matter | max. 0.1 | wt% | MCC Method (Total amount of water) , Volatile Gas Chromatography |
| Butylated Hydroxytoluene Content (as antioxidant) | 150 - 250 | ppm | - |
Regulatory & Compliance
- Quality Standards
Packaging & Availability
- Packaging Information
Drum
180kg
Oilcan
15kg
Storage & Handling
- Storage and Handling Conditions
- PTMG 650 is hygroscopic and will degrade if exposed to oxygen or air, so it should be well-sealed with dry nitrogen.
- PTMG 650 is a white, waxy sold at room temperature, but will become a clear, colorless liquid upon heating.
- If it has solidified in the drum, it can be melted by holding the drum at about 70°C for 24 hours.
- Avoid localized heating however.
- For storage in the liquid state, it is recommended to maintain temperature at less than 50°C.
- Volatility is low, and it is unlikely to catch fire at room temperature.
- But if it is burning, extinguish the fire with dry chemical, alcohol-resistant foam, or large quantities of water.
- Although PTMG 650 has relatively low toxicity and is relatively safe, use standard protective equipment such as goggles and gloves when handling it.