High Pressure Solar Energy Polyurethane Blend Polyols

Used special polyol as main raw materials with special additives to make up of blend polyols which characteristics are as follows

  • Product Introduction

    Used special polyol as main raw materials with special additives to make up of blend polyols which characteristics are as follows
    1、Low
    2、odor 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 high pressure solar energy.

  • Physical Property

    Appearance Light yellow to brown yellow transparent liquid
    Hydroxyl value mgKOH/g 300-360
    Dynamic viscosity mPa.s 300-450
    Specific gravity 20 ℃ 1.10-1.15
    Storage temperature℃ 10月25日
    Storage stability month 6
      pbw
    DTY-202HP blend polyols 100
    Isocyanate 100-105

    Recommended ratio

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

      Manual mixing High pressure
    Material temperature ℃ 20-25 20-25
    Mold temperature ℃ 35-45 35-45
    Cream times 12-16 8-12
    Gel times 75-85 40-60
    Tack free times 100-120 90-110
    Free density kg/m3 27-29 27-28

    Foam characteristics

    Moulding temperature GB / T6343 ≥38kg / m3
    Closed-cell rate GB / T10799 ≥90%
    Thermal conductivity(15℃) GB / T3399 ≤19mW / (m.K)
    Compressive strength(perpendicular to the uprising direction) GB / T8813 ≥140kPa
    Dimensional stability  (24h -20℃) GB / T8811 ≤0.5%
    ( 24h 100℃)   ≤1.0%

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