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北京茂华聚氨酯建材有限公司

ABOUT

HD-DB-40I Rigid PIR Foam Systems for Continuous Manufacturing Sandwich Panels

Beijing Maohua PU Building Materials Co., Ltd.

HP-DB-40I is four-component rigid PIR foam system specially designed for PIR sandwich panels. B-component is modified polyisocyanate(MDI), while A-component is made up of polyether polyalcohol, catalyst and stabiliser,etc., C-component is blowing agent and D-component is flame retardant. The systems is featuring of good foaming stability and dimensional stability, excellent insulation performance and fire resistant performance.

Physical Properties



A Component B Component
Item Index Item Index
Hydroxy Content (MgKOH/g) 250±50 -NCO Content (%) 30-33
Viscosity (25℃)(MPa.s) 800±200 Viscosity (25℃)(MPa.s) 200±40
Specific Gravity (25℃)(g/cm3) 1.21±0.05 Specific Gravity (25℃)(g/cm3) 1.235±0.02

        Proportioning of Weight:A:B=100:(100-120)

        Reaction Time:(Data of Laboratory Test, Working Temperature at 25℃)


Reaction Time HD-DB-40I
CT(sec) 15±5
GT(sec) 45±10
RT(sec) 50±15


Foam Performance

Item Value Testing Method
Core Density (kg/m3) 36±2 GB6343-86
Free Density (kg/m3) 33±1 GB6343-86
Compressive Strength (MPa) ≥0.15 GB8813-88
Thermal Conductivity (W/m.K) ≤0.025 GB10294-88
Closed Cells Content(%) ≥92 ISO DIS4590
Dimensional Stability (%)(-30℃-100℃/96h) ≤3 GB8811-88
Water Absorption (%) ≤3 GB8810-88


        Packaging:Galvanized Zinc Metal Barrel。A Component:200kg/barrel;B Component:250kg/barrel
        Shelf Life:6 months