Low Density Packing Blend Polyols

This product uses special polyol as main raw material with special additives to make up of blend polyols which characteristics are as follows

  • Low Pressure Solar Energy Polyurethane Blend Polyols
    · DTY-202LP
    Product Introduction
    This product uses special polyol as main raw material with special additives to make up of blend polyols which characteristics are as follows
    1、Low smell and environmental protection use high activity polyol and odorless catalyst which can reduce stimulation to respiratory tract of body protect our healthy effectively.
    2、Good flowability during the reactivity process of blend polyols and isocyanate the density of the forming foam distributes uniformity.
    3、Excellent dimensional stability cohesiveness and nozzle smoothness.
    4、Applies to process requirements of low pressure solar energy.

  • Physical Property

    Appearance Light yellow to brown yellow transparent liquid
    Hydroxyl value mgKOH/g 330-390
    Dynamic viscosity mPa.s 300-450
    Specific gravity 20 ℃ 1.12-1.16
    Storage temperature ℃ 10-25
    Storage stability month 6

    Recommended ratio

      pbw
    DTY-202 blend polyols 100
    Isocyanate 100-105

    Process and reactive characteristics( actual value varied depends on the processing conditions)

      Manual mixing Low pressure
    Material temperature ℃ 30-40 30-40
    Mold temperature ℃ 35-45 35-45
    Cream times 12-16 5-10
    Gel times 40-60 20-40
    Tack free times 70-90 40-60
    Free density kg/m3 30-35 28-33

    Foam characteristics

    Moulding density GB/T6343 ≥40kg/m3
    Closed-cell rate GB/T10799 ≥90%
    Moulding density GB/T3399 ≤19mW/(m.K)
    Closed-cell rate GB/T8813 ≥140kPa
    Thermal conductivity(15℃) GB/T8811 ≤0.5%
    (24h 100℃)   ≤1.0%

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