PU Chemical Raw Material Rigid Blend Polyols Used for Packaging Materials Polyurethane Foam

Product Description

Description
This blend polyols with Water as blowing agent, it reacts with isocyanate to produce foam which has good performances:fine and uniformity cells, excellent low temperature dimensional stability. Mainly used for precision instruments, glass products, fragile products packaging,and also suitable for all kinds of thermal insulation projects,such as cold room, large tank, large pipeline, external wall or internal wall ,package and other use of spray insulation projects.
Physical property
COMPONENT 1-Blend polyol

Appearance	Light yellow to brown liquid
Hydroxyl Value mgKOH/g	200-300
Dynamic viscosity(25ºC) mPa.S	200-400
Specific gravity (20 ºC ) g/ml	1.12-1.20
Storage temperature ºC	10-25
Storage stability month	6

COMPONENT 2-Polymeric MDI

Appearance	brown transparent liquid
NCO content %	30.50-32.50
Dynamic viscosity (25ºC) mPa.S	160-240
Density (20ºC) g/ml	1.22-1.25
Storage temperature ºC	10-25
Storage stability month	6

RECOMMENDED RATIO

Raw materials	pbw
Blend polyols	100 g
Polymeric MDI	100-105g

(The temperature of the system is 20ºC,and the exact value varied depending on processing condition)
REACTIVITY CHARACTERISTICS

Cream Time s	2-4
Gel Time s	10-12

Package:
220kg/drum or 1100kg/IBC for Polyol and 250kg/drum for Isocyanate.

Company and factory introduction:

R&D Centre
Quality control and Foam performance test:

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