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Low Pressure Solar Energy Polyurethane Blend Polyols
· DTY-202LP
Product Introduction
This product uses special polyol as main raw material, with special additives to make up of blend polyols, which characteristics are as follows,
1,Low smell and environmental protection, use high activity polyol and odorless catalyst, which can reduce stimulation to respiratory tract of body, protect our healthy effectively.
2, Good flowability during the reactivity process of blend polyols and isocyanate, the density of the forming foam distributes uniformity.
3,Excellent dimensional stability, cohesiveness and nozzle smoothness.
4,Applies to process requirements of low pressure solar energy.
Physical Property
Appearance Hydroxyl value mgKOH/g Dynamic viscosity mPa.s Specific gravity 20 °C Storage temperature °C Storage stability month | Light yellow to brown yellow transparent liquid 300-400 300-450 1.12-1.15 10-25 6 |
Recommended ratio
pbw | |
DTY-202 blend polyols Isocyanate | 100 100-105 |
Process and reactive characteristics( actual value varied depends on the processing conditions)
Manual mixing | Low pressure | |
Material temperature °C Mold temperature °C Cream time s Gel time s Tack free time s Free density kg/m3 | 30-40 35-45 12-16 40-60 70-90 30-35 | 30-40 35-45 5-10 20-40 40-60 28-33 |
Foam characteristics
Moulding density Closed-cell rate Thermal conductivity(15°C) Compressive strength(perpendicular to the uprising direction) Dimensional stability 24h -20°C 24h 100°C | GB/T6343 GB/T10799 GB/T3399 GB/T8813 GB/T8811 | ≥35kg/m3 ≥90% ≤19mW/(m.K) ≥140kPa ≤0.5% ≤1.0% |
Low Pressure Solar Energy Polyurethane Blend Polyols