PU elastomers
Polyester MDI System Casting Materials

 

Polyester MDI system casting materials-- polyester polyol MDI similar prepolymer

It has good wear resistance、solvent resistance、tear resistance strength and low internal heat. Application range: Various industrial components like various wheel、industrial rubber roll、mine accessories、and sieve net printing plastic. The process of production is environmentally friendly.

Product Name

LM5001

LM5002

LM5003

LM5004

LM5161

LM5162

LM5163

LM5164

LM5165

LM5166

 

Component A

Prepolymer Name

M5050

M5060

M5070

M5085

M5016

M5016

M5016

M5016

M5016

M5016

 

Prepolymer NCO%

5.0±0.2

6.0±0.2

7.0±0.2

8.5±0.2

16.0±0.2

16.0±0.2

16.0±0.2

16.0±0.2

16.0±0.2

16.0±0.2

 

Melting Temperature & Time(℃/h,30kg/barrel)

60/8

60/8

60/8

60/8

45/8

45/8

45/8

45/8

45/8

45/8

 

Prepolymer Casting Temperature (℃)

80

80

80

80

45

45

45

45

45

45

 

Prepolymer Viscosity(cps,80℃)

3800

2800

1900

850

780

780

780

780

780

780

 

Component B

Solidifying Agent

BDO

BDO

BDO

BDO

M61670B

M61675B

M61680B

M61685B

M61690B

M61695B

 

Casting Temperature (℃)

45

45

45

45

45

45

45

45

45

45

 

Viscosity(cps/120℃)

30

30

30

30

1970

1950

1770

1650

1340

1200

 

Operating Parameters

Ratio,A/B

100/5.1

100/6.1

100/7.1

100/8.6

100/135

100/110

100/103

100/80

100/80

100/80

 

Gelation Time at Casting Temperature(min,400g mixed materials)

12

8

5

2

8

8

6

5

5

5

 

Mould Temperature(℃)

120

120

120

100

85

85

85

85

85

85

 

Demoulding Time(min)

120

60

30

20

40

40

40

30

30

30

 

Finished Cure Temperature & Time(℃/h)

120/30

120/30

120/30

100/24

85/16

85/16

85/16

85/16

85/16

85/16

 

Polyurethane Elastomer Main Performance

Hardness (Shore A/D,25℃)

80/

85/

88/

95/

70

75

80

85

90

95

 

100%Modulus(MPa)

 

 

 

 

 

 

 

 

 

 

 

200%Modulus(MPa)

 

 

 

 

 

 

 

 

 

 

 

300%Modulus(MPa)

 

 

 

 

 

 

 

 

 

 

 

Tensile Strength(MPa)

41

44

46

48

33

36

40

50.2

54

60

 

Elongation at Breaking Force(%)

550

556

538

558

540

550

510

530

540

510

 

Tear Strength(KN/m,Un-notched)

90

93

108

123

72

80

97

102

126

129

 

Resilience Rate(%)

47

40

36

36

44

44

44

45

45

34

 

Abrasion(mm3

38

38

42

42

23

22

20

27

29

29

 

Compression Permanent Deformation Rate(%)

26

26

27

28

17

18

20

21

20

21

 

Density(g/cm3

1.20

1.20

1.20

1.20

1.21

1.21

1.21

1.21

1.21

1.21

 

Main Features

It has good strength、excellent wear resistance、solvent resistance.

Recommended Application Field

Printing plastic、mine accessories etc.

Media Inquiry
tel:028-85965839
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