PU elastomers
Polyester TDI System Casting Materials

 

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

Parts of gelation time depend on amount of catalyst and adjustable to different operating requirements. It has good wear resistance、solvent resistance and tear resistance strength. Application range: Various industrial components such as various wheel、industrial rubber roll、mine accessories and sieve nets.

产品名称

LM4012

LM4013

LM4014

LM4014

LMLM4009

LMLM4010

LM4011

LM4012

LM4013

LM4014

A组分

预聚体名称

T4045

T4050

T4056

T4082

T4130

T4135

T4142

T4146

T4150

T4155

预聚体NCO%

4.5±0.2

5.0±0.2

5.6±0.2

8.2±0.2

3.0±0.2

3.5±0.2

4.2±0.2

4.6±0.2

5.0±0.2

5.5±0.2

熔化温度时间(℃/h,30kg/桶)

60/8

60/8

60/8

60/8

60/8

60/8

60/8

60/8

60/8

60/8

预聚体浇注温度(℃)

85

85

85

85

85

85

85

85

80

80

预聚体粘度(cps,80℃)

 

 

 

 

3500

3300

2800

1800

1450

1250

B组分

固化剂

MOCA

MOCA

MOCA

MOCA

C4100

C4100

C4100

C4100

C4100

C4100

浇注温度(℃)

120

120

120

120

35

35

35

35

35

35

粘度(cps/120℃)

 

 

 

 

600

600

600

600

600

600

操作参数

比例,A/B

100/13.6

100/15.1

100/16.9

100/24.6

100/7.9

100/9.3

100/11.1

100/12.2

100/13.2

100/14.5

浇注温度下凝胶时间(分钟,400g混合物料)

8

6

4

2

12

10

8

6

4

3

模具温度(℃)

100

100

100

100

100

100

100

100

100

100

脱模时间(分钟)

200

200

200

200

20

20

20

15

10

10

后硫化温度时间(℃/小时)

100/16

100/16

100/16

100/16

100/16

100/16

100/16

100/16

100/16

100/16

聚氨酯弹性体主要性能

硬度(邵A/D,25℃)

90/

93/55

98/65

99/70

70/

75/

80/

85/

90/

95/

100%模量(MPa)

 

 

 

 

 

 

 

 

 

 

200%模量(MPa)

 

 

 

 

 

 

 

 

 

 

300%模量(MPa)

 

 

 

 

 

 

 

 

 

 

拉伸强度(MPa)

46

48

53

57

38

44

50

53

55

57

断裂伸长率(%)

508

480

450

430

660

630

600

550

520

470

撕裂强度(KN/m,无缺口)

112

110

134

144

88

90

93

101

114

122

回弹率(%)

30

30

28

29

42

42

42

38

38

34

磨耗(mm3)

31

27

30

30

19

19

20

20

24

28

压缩永久变形率(%)

25

28

27

31

22

22

24

25

26

27

密度(g/cm3)

1.25

1.25

1.27

1.28

1.22

1.22

1.22

1.25

1.25

1.25

本体系主要特点

具有较好的强度

耐磨性优异、回弹性好、压缩永久变形小

推荐应用领域

胶辊、承重轮等

管道猪、胶辊、高耐磨制品等

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