PU elastomers
Polyether MDI System Casting Materials

 

Polyether MDI system casting materials-- polyether polyol(PTMEG)MDI similar prepolymer or semi-prepolymer.

The product has features such as good wear resistance、hydrolytic resistance、tear resistance strength. Application range: Wet environment with water, excellent dynamic property, various industrial components like wheel、industrial rubber roll、mine accessories and sieve nets.

Product Name

LM6001

LM6002

LM6003

LM6004

LM6005

LM6184

LM6188

LM6190

 

Component A

Prepolymer Name

M6040

M6050

M6060

M6070

M6085

M6112

M6113

M6114

 

Prepolymer NCO%

4.0±0.2

5.0±0.2

6.0±0.2

7.0±0.2

8.5±0.2

12.0±0.2

13.5±0.2

14.0±0.2

 

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

60/8

60/8

60/8

60/8

60/8

45/8

45/8

45/8

 

Prepolymer Casting Temperature (℃)

80

80

80

80

80

45

45

45

 

Prepolymer Viscosity(cps,80℃)

3300

2500

1800

1300

850

780

780

780

 

Component B

Solidifying Agent

BDO

BDO

BDO

BDO

BDO

M6184B

M6188B

M6190B

 

Casting Temperature (℃)

45

45

45

45

45

45

45

45

 

Viscosity(cps/120℃)

30

30

30

30

30

830

840

840

 

Operating Parameters

Ratio,A/B

100/4

100/5.1

100/6.1

100/7.1

100/8.6

100/100

100/100

100/100

 

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

12

8

6

3

2

1.5

1.5

1.5

 

Mould Temperature(℃)

100

100

100

100

100

35

35

35

 

Demoulding Time(min)

160

120

100

50

20

60

60

60

 

Finished Cure Temperature & Time(℃/h)

100/24

100/24

100/24

100/24

100/24

25/7d

25/7d

25/7d

 

7d

Hardness (Shore A/D,25℃)

75/

80/

83/

88/

95/

84

88

90

 

100%Modulus(MPa)

 

 

 

 

 

 

 

 

 

200%Modulus(MPa)

 

 

 

 

 

 

 

 

 

300%Modulus(MPa)

 

 

 

 

 

 

 

 

 

Tensile Strength(MPa)

17

22

27

30

31

27

30

33

 

Elongation at Breaking Force(%)

515

500

580

450

420

550

560

536

 

Tear Strength(KN/m,Unnotched)

72

80

95

110

124

90

100

102

 

Resilience Rate(%)

72

62

60

60

56

75

75

75

 

Abrasion(mm3

40

31

30

38

40

38

36

37

 

Compression Permanent Deformation Rate(%)

12

12

16

20

22

 

 

 

 

Density(g/cm3

1.08

1.08

1.08

1.1

1.1

1.1

1.1

1.1

 

Main Features of the System

It has good dynamic property、low sliding Wear, and the process of material production and application is comparatively environmentally friendly.

The product has high elasticity, and materials’ gelation time is short, which is suitable for machine line production.

Recommended Application Field

Various industrial components

Wheel of skateboards androller skates.

Media Inquiry
tel:028-85965839
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