Double Layer Sealing Polyurethane Material Poly Urethane Skirting

Double Layer Sealing Polyurethane Material Poly Urethane Skirting

The same raw materials can be produced with different hardness by adjusting the A/B/C component ratio, and the raw materials need not be replaced in the hardness switching process.

Product Introduction

We are committed to improving product performance, enhancing product quality, and continuously reducing product costs to provide the best Two Componment MDI Based Polyurethane Prepolyer, PU Square Pad, PU ROD and services to our customers. We welcome potential buyers to contact us. We have made a breakthrough in optimizing our layout, significantly enhanced our comprehensive strength and significantly improved our market competitiveness. We will continue to innovate the talent mechanism and build an efficient human resource management system. Enterprises from the inheritance of meticulous craftsman spirit, customer demand-oriented, intelligent manufacturing as the core concept, solid good products, efforts to control the quality.

Three componment MDI system PU Prepolymer

1. Characteristics of MDI raw materials

The same raw materials can be produced with different hardness by adjusting the A/B/C component ratio, and the raw materials need not be replaced in the hardness switching process.

1) Need catalyst intervention

MDI three-component feedstock belongs to semi-prepolymer, and the reaction rate of-0H is less than that of-NH2. In order to obtain better physical properties and production efficiency, catalyst is needed

2) Environmental protection

The vapor pressure of MDI is much lower than that of TDI, and it has aromatic odor and little toxicity in the production process, so MDI is a new material that meets the needs of environmental protection.

2. Advantages of the MDI three-component series

* Adjustable hardness: the same grade of three-component raw materials can be replaced by permutation and combination to produce products with different hardness.

* Environmental protection: MDI vapor pressure is lower.

* Low equipment energy consumption: The application temperature of MDI products is lower, and the equipment energy consumption is greatly reduced.

* High production efficiency: The intervention of the catalyst makes the production efficiency of MDI products higher than that of TDI products, with low energy consumption and high efficiency.


Specifications

Item

Standard

Unit

Hardness

60A

65A

70A

75A

80A

85A

90A

95A

HJ33M-A

-

g

100

100

100

100

100

100

100

100

HJ33M-B

-

g

224

184

144

124

104

84

69

56

HJ33M-C

-

g

7.25

9.05

10.85

11.75

12.65

13.55

14.20

14.80

Catalyst

-

1~3

1~3

1~3

1~3

1~3

1~3

1~3

1~3

HJ33M-A temperature

-

45-50

HJ33M-B temperature

-

65-75

HJ33M-C temperature

-

35-40

Die temperature

-

100-110

Post-maturing conditions

-

h/℃

(12-24)/100 according to product size

Gel time

-

mins

7~10

7~10

7~10

5~7

5~7

3~5

3~5

3~5

Demoulding time

-

mins

40

40

40

30

30

30

30

30

Tensile strength

GB/T528-2009

Mpa

35-37

36-38

36-38

38-40

38-43

42-47

43-48

47-52

100% modulus

GB/T528-2009

Mpa

1—2

2—3

2—3

2—4

3—5

5—7

6—8

8—10

300% modulus

GB/T528-2009

Mpa

2—4

5—8

7—9

9—12

11—14

13—16

14—17

17—20

Elongation at break

GB/T528-2009

%

551-654

532-637

522-625

522-623

481-582

432-535

422-525

425-527

Tear strength

GB/T529-2008

KN/m

36-44

42-54

52-63

61-73

71-82

81-92

92-104

104-120

Rebound

GB/T1681-2009

%

51-52

50-52

50-52

49-51

48-50

45-47

43-45

41-43

Density (25 ℃)

GB/T533-2008

g/cm2

1.21

1.21

1.22

1.22

1.22

1.23

1.24

1.24

DIN drum wear

GB/T9867-2008

mm3

≤40

≤40

≤38

≤38

≤38

≤38

≤35

≤35

We firmly establish the concept of superb technology and exquisite quality, aiming at high standards and pursuing high levels of Double Layer Sealing Polyurethane Material Poly Urethane Skirting. We have professional technicians and after-sales service personnel, who can give detailed answers to customers at any time. We insist on people-oriented, protect the personal interests of employees, and improve the prevention and control of accidents.

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