Low Pressure Solar Energy Polyurethane Blend Polyols

Low Pressure Solar Energy Polyurethane Blend Polyols

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