Polyurethane Polyols for Freezers and Refrigerators Blend With Polymeric Mdi
Specifications
Cyclopentane Polyurethane Foam Systems for freezers and refrigeratorsDJD-103
Products Introduction
DJD-103 blend polyols use cyclopentane as blowing agent, which applies to refrigerators, freezers, and other insulation products. The characteristics of the products are as follows: 1.excellent flowability, the density of the foam is well-distributed, and the thermal conductivity is low;
2.excellent low-temperature dimensional stability and good cohesiveness;
3. demould time is 6-8 minutes.
Physical Properties
Appearance pale yellow transparent viscous liquid
Hydroxyl Value mgKOH/g 360-420
Dynamic Viscosity (25 °C) mPa.s 3000-4000
Gravity (20 °C ) g/ml 1.06-1.08
Storage Temperature °C 10-25
Storage Stability month 6
Recommended Ratio pbw
DJD-103 blend polyols 100
CP or CP/IP 12-14
Isocyanate 136-142
Technology and Reactivity (the exact value varied depending on processing conditions)
Manual Mixing Mechanical Foaming
Raw material Temperature °C 20-25 20-25
Mold Temperature °C 35-40 35-40
CT s 12-16 8-12
GT s 75-85 50-70
TFT s 100-120 70-100
Free Density kg/m3 25-26 24-25
Foam Performance
Foam Density by Molding GB/T 6343 35kg/m3
Closed-cell Rate GB/T 10799 ≥90%
Thermal Conductivity (15 °C) GB/T 3399 ≤22 mW/(m.K)
Compressive strength
(perpendicular to the direction of rising) GB/T 8813 ≥150kPa
Dimensional Stability (24h, -20 °C) GB/T 8811 ≤0.5%
(24h, 100 °C) ≤1.0%
Quality Testing Facility:
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