TDI Polyurethane Elastomer

TDI Polyurethane Elastomer

Product Description Castable polyurethane elastomers The performance of polyurethane elastomer wear-resistant products The wear resistance of polyurethane elastomer is superior to other rubber, compared with steel under dry friction conditions, the volume loss of its 6 to 7 times higher than...

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Product Details

Product Description
Castable polyurethane elastomers
 
The performance of polyurethane elastomer wear-resistant products
The wear resistance of polyurethane elastomer is superior to other rubber, compared with steel under dry friction conditions, the volume loss of its 6 to 7 times higher than steel,However, if coupled with the lubricant between the polyurethane elastomer and contact material such as water, oil or other liquids, the working conditions change for lubrication, the wear resistance of polyurethane elastomer is even better than steel.
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Technical Specification

Model

H3345

H3360

H3380

H3580

H3290

 

Operation    process

NCO%

4.5±0.2

6.0±0.2

8.0±0.2

8.0±0.2

9.0±0.2

 

State (20℃)

White soild

100g prepolymer BOD dosage/G

4.5

6

8

8

9.2

Viscosity(85℃)/mPa·S

 
1500-2200

 
1200-1800

 
800-1500

 
600-1200

 
500-1000

Mix temperature(prepolymer/BOD)

85/35

80/35

80/35

80/35

80/35

Gel time/min

9-18

8-16

6-15

6-15

5-12

Post cure time(100℃)/h

10

30

36

36

36

Performance

Hardness(Shore A/D)

68±2

82±2

86±2

90±2

95±2

M100/MPa

3

5.5

6.7

7.3

10

M300/MPa

8

12

14

15.1

18

Tensile strength

43

45

50

55

48

Elongatiion at break%

650

600

570

589

500

Tear strength(right angle)(kN/m)

75

95

102

119

128

Tear strength(pants)(KN/M)

28

43

46

50

52

Rebound resilience%

45

40

40

41

48

Density (25℃)(g/cm³)

1.23

1.25

1.26

1.18

1.18

Abration(cm³/1.61km)

0.025

0.025

0.025

0.02

0.02

Advantage

Oil  resistence,high temperature resistence,antioxidant and UV, Tearing resistance   and tensile strength,sliding wear resistance.

Disadvantage

Fungus degradation,hydrolytic degradation,the low temperature performance is bad

Usage

For making rubber roller,sieve plate,seals,mould,piston,shaft sleeve,scraper ect.

Package

20KG/drum ,200KG/drum

Storage

Cool,ventilation,dry

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