Main Products: Polyurethane ,Rigid Foam System ,Blend Polyol
Rigid Foam Systems for Pipe
USD $2.15 - $2.5 /Ton
Min.Order:1 Ton
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Shanghai Dongda Polyurethane Co., Ltd.
Business Type: Manufacturer,Trading Company
Shanghai ChinaMain Products: Polyurethane ,Rigid Foam System ,Blend PolyolProduct Details
Temperature-Resistance Polyurethane Foam Systems for Pipe
Products Introduction
This product is a type of blend polyols, which is specially researched for rigid PUF to produce thermal insulation pipes. It is widely used in steam pipes, liquefied nature gas running pipes and other fields. The characteristics are as follows:
(1)good flowability, by regulating formula to suit different pipe diameters.
(2)good temperature-resistance property, long standing in 150°C
(3)good low temperature dimensional stability.
Physical Property
Appearance Hydroxyl value mgKOH/g Dynamic viscosity(25°C) mPa.s Density (20°C) g/ml Storage temperature °C Storage stability Month | Light yellow to brown yellow transparent liquid 300-450 100-250 1.10-1.16 10-25 6 |
Technology and Reactivity Characteristics
The temperature of component is 20°C, the actual value is varied according to pipe diameter and processing condition.
| Manual mixing | High pressure machine |
Ratio(POL/ISO) Rise time s Gel time s Tack free time s Free density kg/m3 | 1:1.0-1.1.10 20-40 80-200 ≥150 22-40 | 1:1.0-1.10 15-35 80-160 ≥150 22-38 |
Foam Performance
Foam density by moulding Closed-cell rate Thermal conductivity(15°C) Compressive strength Water absorption Dimensional stability (24h,100°C) (24h,-30°C) High temperature-resistance | GB 6343 GB 10799 GB 3399 GB/T8813 GB 8810 GB/T8811 | 60-80kg/m3 ≥90% ≤33mW/(m.K) ≥300kPa ≤3(V/V)% ≤1.5% ≤1.0% ≤150°C |
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