Blend polyols for sandwich roof panel

Quick Details

Place of Origin:Shanghai, China (Mainland)Brand Name:DongdaModel Number:DBC-402BType:Polyurethane Sandwich Panels
Packaging & Delivery

Packaging Details 220kg/drum
Delivery Time within seven days after receipt of the payment
Specifications

Polyurethane sandwich roof panel

Polyurethane sandwich roof panelDBC-402B
Product Introduction
DBC-402B blend polyols is a compound which consists of polyether polyols, surfactants, catalysts, foaming agent and flame retardant in a special ratio. The foam has good thermal insulation property, light in weight, high compression strength and flame retardance and other advantages. It is widely used to produce sandwich plates, corrugated plates etc, which applies to make cold stores, cabinets, portable shelters and so on.
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 transparent viscous liquid
320-400
250-350
1.10-1.16
10-25
6
Recommended Ratio
Raw materials
pbw
DBC-402B blend polyols
Isocyanate
100
100-105
Technology and Reactivity((the exact value varies depending on processing conditions)
items
Manual mixing
High temperature machine
Raw material temperature °C
Moulding temperature °C
Cream time s
Gel time s
Free density kg/m3
20-25
35-45
30-50
120-200
23-26
20-25
35-45
20-30
70-150
23-26
Foam Performance
Moulding density
Closed-cell rate
Thermal conductivity(15°C)
Compression strength(perpendicular to the direction of rising)
Dimensional stability
24h -20°C
24h 100°C
Flame retardant grade
GB 6343
GB 10799
GB 3399
GB/T 8813
GB/T 8811
GB/T8624
≥38kg/m3
≥90%
≤22mW/(m.K)
≥140kPa
≤1%
≤1.5%
Level B2