Rigid Polyurethane Polyether Foam System for Continuous Panels

Specifications

Rigid polyurethane polyether foam system for continuous panels
good flowability
good dimensional stability and cohesiveness

 Blend polyether polyol for panel

Physical properties

Appearance		Light yellow to brown yellow transparent liquid
OH	(mgKOH/g)	200-280
Dynamic viscosity(25)	mPa.s	250-300
Density(20)	g/ml	1.11--1.15
Storage Temperature		10--25
Storage stability	month	6

 

Recommended ratio

 

QBC-402C		100
MDI		150-160

 

Process and reaction characteristics

 

		Handed mix	For high pressure machine
Material Temperature		20-25	20-25
Mold Temperature		35-45	35-45
CT	s	10-15	20-30
GT	s	15-25	70-150
Free Density	kg/m3	23-26	23-26

 

Foam Properties

 

Density Apparent	GB/T 6343	≥45kg/m3
Obturator rate	GB/T 10799	≥90%
Initial thermal conductivity	GB/T 3399	≤25mW/(m.K)
Compressive strength	GB/T 8813	≥200kPa
Dimensional Stability  24 hours  -20	GB/T 8811	≤0.%
24 hours 100		≤1.5%
Flammability	GB/T8624	B2