141B product should be familiar to all of us in the polyurethane industry. As a substitute for Freon F11 foaming agent, it has good economic and quality benefits. It occupies the position of the second generation Freon blowing agent in the short-term replacement of environmentally friendly ODS.
CFC-141B high purity polyurethane flame retardant foaming agent
141B product should be familiar to all of us in the polyurethane industry. As a substitute for Freon F11 foaming agent, it has good economic and quality benefits. It occupies the position of the second generation Freon blowing agent in the short-term replacement of environmentally friendly ODS. Through its own low ozone layer destruction coefficient, it reduces human impact on the environment. Our country has completely phased out the use of F11 and F113, and is currently in the phase-out phase of HCFC-141B. According to relevant international treaties, 141B products can be used in the cleaning industry until 2025, while the polyurethane foaming industry can be used longer (polyurethane foaming applications may be subdivided into different applications, and the elimination years are also different).
As a polyurethane foaming agent product, HCFC-141B is widely used by various polyurethane foam manufacturers? First of all, 141B has unique properties: it is non-flammable, has no flash point, and has high-quality flame-retardant characteristics. Compared with cyclopentane and pentafluorobutane, there is no way to achieve similar characteristics. In addition, the boiling point of 141B polyurethane foaming agent is more suitable for storage and use, and it has more storage advantages than 245fa.
HCFC-141B basic physical properties
Flash point: None, non-flammable
CAS:1717-00-6
Status: colorless transparent liquid
Pour point: -80℃
Boiling point (℃): 32
Density (kg/m): 1.249
Heat of vaporization (kJ/kg): 235
Viscosity (mPa.s) 25°C: 0.43
Vapor pressure 0°C (x105Pa): 0.28
Vapor pressure at 20°C (x105Pa): 0.65
Vapor pressure at 50°C (x105Pa): 1.84
Water solubility at 20°C (%): 0.032
Water solubility at 20°C (%): 0.27
Surface tension at 20°C (mN/m): 18.7
KB value: 56
Specific heat (cal/g.℃): 0.28
ODP (Ozone Depletion Coefficient): 0.11
GWP (greenhouse effect coefficient): 630
Exposure volume content (ppm): 500
Flash point (℃):-
Dielectric constant 25℃:7.9
Refractive index 20 ℃: 1.369
Packing: 30kg and 250kg