POLYETHER POLYOL LEP-5631D
General Properties and Applications
POLYETHER POLYOL LEP-5631D is a 3,000 molecular weight polyether triol. It is used to produce flexible PU foam and mattress, etc.
Specification
| Property | Value | Unit of measurement | Method |
|---|---|---|---|
| Hydroxyl number | 54-58 | mg KOH/g | GB/T12008.3-2009 |
| Moisture | ≤0.05 | % by wt. | GB/T22313-2008 |
| Acidity | ≤0.05 | mg KOH/g | GB/T 12008.5-2010 |
| Viscosity 25℃ | 400-650 | mPa.s | GB/T12008.7-2010 |
| PH | 5.5-7.5 | - | GB/T 12008.2-2010 |
| Color (APHA) | ≤30 | °St | GB/T 605-2006 |
| Appearance | Clear to light pink viscous liquid | Visual | |
Handling Precautions
Flash point of LEP-5631D exceeds 150 degree Celsius (close cup, ASTM D-93 method). The polyol is flammable but non-explosive. In case of fire, put the fire out with foams, dry powder, steam or water. In the handling of the polyol, precautions should be taken to avoid exposure to eyes or prolong contact with the skin. If eye contact occurs, flush with plenty of water. If skin contact occurs, wash exposed areas thoroughly with soap and water.
Storage
The polyol should be stored in sealed steel drum. Contact with air should be prevented.
LEP-5631D is slightly hygroscopic and may absorb moisture. Containers should be kept sealed and protected from contamination of moisture and foreign materials.
The shelf life of LEP-5631D is 12 months. After this period, pre-test should be made before use.
COPOLYMER POLYOL LHS-100
General Properties and Applications
LHS-100 is an inactive polymer polyol modified with a styrene-acrylonitrile (SAN) polymer with a solid content of approx 45% by weight. It effectively combines a high solid content with low viscosity. LHS-100 can also be used for the production of conventional slabstock foams with very high load bearing properties.
Specification
| Property | Value | Unit of measurement | Method |
|---|---|---|---|
| Hydroxyl number | 28.0-32.0 | mg KOH/g | GB/T12008.3-2009 |
| Moisture | ≤ 0.08 | % by wt. | GB/T22313-2008 |
| Viscosity 25℃ | 3000-4000 | mPa.s | GB/T12008.7-2010 |
| Solid content | 43-47 | % by wt. | Q/0322 SLH 004-2019 |
| Appearance | White to off-white | Visual | |
| Styrene | ≤10 | PPM | GB/T31062-2014 |
Handling Precautions
Flash point is above 200℃ (open cup method), flammable but non-explosive. In case of fire, put out with foams, dry powder, steam or water.
When handling polyols, avoid exposure to eyes or prolong contact with the skin. If eye contact occurs, flush with plenty of water. If skin contact occurs, wash exposed areas thoroughly with soap and water.
Storage
Recommended storage temperature (℃): 10-35
Shelf life (ex-works) 12 months if stored in sealed, moisture-tight containers.
Partially used containers should be tightly resealed due to the hygroscopic nature of the product.
Recommended temperature for processing (℃): 20-25.
