Factory Cheap Hot Refrigerator&Insulation Containers - Donfoam 813 CP/IP base blend polyols for block foam – INOV

Donfoam 813 CP/IP base blend polyols for block foam

INTRODUCTION

Donfoam813 blend polyols use CP or CP/IP as blowing agent ,used in the production of high flame retardant PIR block foam, with performances of uniform foam cell , low thermal conductivity, good thermal insulation and  flame retardant, low temperature no shrinking crack etc. Widely used in the process of all kinds of insulation work such as: building external wall, cold storage, tanks, large pipes etc.

PHYSICAL PROPERTY

Appearance               

Dynamic viscosity (25℃)      mPa.S

Density (20℃)              g/ml

Storage temperature              ℃

Storage stability                 month

Light yellow to brown transparent liquid

500±100

1.20±0.1

10-25

6

RECOMMENDED RATIO

Items

PBW

Blend Polyols

CP or CP/IP

Isocyanate

100

11-13

140-150

TECHNOLOGY AND REACTIVITY (the exact value varies depending on processing conditions)

 

Manual Mixing

Raw Material Temperature   ℃

Mold Temperature        ℃

CT                       s

GT                       s

TFT                      s

Free Density            kg/m3

20-25

Ambient Temperature (15-45℃ )

35-60

140-200

240-360

28-35

FOAM PERFORMANCES

Item

Test Standard

Specification

Overall Molding Density

Molding Core Density

ASTM D1622

≥50kg/m3

≥40kg/m

Closed-cell Rate ASTM D2856

≥90%

Initial Thermal Conductivity(15℃) ASTM C518

≤24mW/(m.K)

Compressive Strength ASTM D1621

≥150kPa

Dimensional Stability  

                 24h      -20℃

                 RH90     70℃   

ASTM D2126

 ≤1%

≤1.5%

Water Absorption Rate ASTM D2842

 ≤3%