Product Details

Specifications

Rigid Blend Polyether Polyols for Discontinuous Panels

DBC-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

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