HFC-245fa Polyurethane Foam Systems
HFC-245fa Polyurethane Foam Systems
Rigid Polyurethane Foam Systems
HFC-245fa Polyurethane Foam Systems

 

DJD-105

Product Introduction

HFC-245fa is the foaming agent of DJD-105 blend polyols, the last substitution of CFC-11, which applies to refrigerators and thermal insulation equipments. Except for environmental protection, it also has characteristics as follows,

1、excellent flowability and the density distributing of foam is uniformity.;

2、the foam has good low temperature dimensional stability and cohesiveness;

 3、demould time is short.

 Physical Property

Appearance               

Hydroxyl value               mgKOH/g

Dynamic viscosity (25℃)      mPa.s

Density(20℃)           g/ml

Storage temperature                ℃

Storage stability              Month

Light yellow transparent viscous liquid

 330-410

2000-3000

1.05

≤25

6

Recommended Ratio

Raw material

pbw

DJD-105blend polyols

HFC-245fa

Isocyanate

100

15-17

145

Technology and Reactivity Property(the exact value varied depending on processing conditions)

Items

Manual mixing

High pressure machine

Raw material Temperature     ℃

Mold Temperature          ℃

CT                       s

GT                       s

TFT                      s

Free Density             kg/m3

15-20

35-40

8-15

70-90

100-120

23-25

15-20

35-40

6-12

50-70

80-100

22-24

Foam performance

Foam Density by Molding

Closed-cell Rate

Thermal Conductivity (15 ℃)

Compressive strength

(perpendicular to the direction of rising)

Dimensional Stability

           (24h, -20 ℃)

          (24h, 100 ℃)

GB/T 6343

GB/T 10799

GB/T 3399

GB/T 8813

 

GB/T 8811

 

 

 

 

28-35kg/m3

≥90%

≤19mW/(m.K)

≥150kPa

 

 

 ≤0.5%

≤1.0%

 

 

The data provided above are typical value, which are tested by our company. For our company's products, the data included in the law do not have any constraints.

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