Rigid foam polyurethane for pipe insulation

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Quick Details

Place of Origin:China (Mainland)
Type:Synthetic Resin and Plastics, Blend polyols
Model Number:DQT-502
Appearance:Pale yellow to brown viscous liquid
Hydroxyl Value:300-450
Dynamic Viscosity:100-250
Density:1.10-1.16
Strorage Temperature:10-25
Storage Stability:6

Packaging & Delivery

Packaging Details:	New steel drums 220kg/drum or 1 ton/IBC
Delivery Detail:	within 5 days after receipt of payment

Specifications

DQT-502 is a type of blend polyether 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, oil pipes and other fields. The characteristics are as follows:

1. good flowability, by regulating formula to suit different pipe diameters.

2. high temperature-resistance performance, long standing in 150°C

3.excellent low temperature dimensional stability

Physical Properties

Appearance pale yellow transparent viscous liquid

Hydroxyl Value mgKOH/g 300-450

Dynamic Viscosity (25 °C) mPa.s 200-500

Gravity (20 °C ) g/ml 1.10-1.16

Storage Temperature °C 10-25

Storage Stability month 6

Technology and Reactivity (the exact value varied depending on processing conditions)

Manual Mixing Mechanical Foaming

Ratio (POL/ISO) 1:1.0-1:1.10 1:1.0-1:1.10

Rise time 20-40 15-35

Cel time s 80-200 80-160

Trck free time s ≥150 ≥150

Free Density kg/m3 25-40 24-38

Foam Performance

Molding Density GB/T 6343 40-80kg/m3

Closed-cell Rate GB 10799 ≥ 90%

Thermal Conductivity (15 °C) GB/T 3399 ≤33 mW/(m.K)

Compressive strength GB/T 8813 ≥200kPa

Water absorption GB/T 8810 ≤3(V/V)%

Dimensional Stability GB/T 8811

(24h, -20 °C) ≤1.5%

(24h, 100 °C) ≤1.0%

High temperature-resistance ≤140°C

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