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Blend Polyols for Sandwich Panel

Home Raw Materials Blend Polyols Blend Polyols for Sandwich Panel
Multi-product classification

chuanghong

We are the agent and manufacturer of polyurethane products.

Blend Polyols for Sandwich Panel

  • Product overview
    Product Introduction:
    This 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 panels, corrugated plates etc, which applies to make cold stores, cabinets, portable shelters and so on.


    Physical Property:

    Appearance

    Light yellow transparent viscous liquid

    Hydroxyl value

    mgKOH/g

    300-360

    Dynamic viscosity （25℃）

    mPa.S

    250-350

    Density （20℃）

    g/ml

    1.10-1.16

    Storage temperature

    ℃

    10-25

    Storage stability

    month

    6

    Recommended Ratio:

    Raw materials

    pbw

    Blend polyols

    100

    Isocyanate

    100-120

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

    items

    Manual mixing

    High temperature machine

    Raw material temperature ℃

    20-25

    20-25

    Moulding temperature ℃

    35-45

    35-45

    Cream time s

    30-50

    20-30

    Gel time s

    120-200

    70-150

    Free density kg/m3

    23-26

    23-26

    Foam Performance:

    Moulding density Closed-cell rate

    GB 6343

    GB 10799

    ≥38kg/m3

    ≥90%

    Thermal conductivity（15℃）

    GB 3399

    ≤22mW/(m.K)

    Compression strength（perpendicular

    GB/T 8813

    ≥140kPa

    to the direction of rising）

    Dimensional stability

    24h -20℃

    24h 100℃

    GB/T 8811

    ≤1%

    ≤1.5%

    Flame retardant grade

    GB/T8624

    Level B2


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