Cn Back Polyurethane PU Plate Sheets with Cn Layer

Cn Back Polyurethane PU Plate Sheets with Cn Layer

Under conventional hardness, TDI and MDI products have no great difference in strength index, but will have obvious improvement in elasticity and wear resistance.

Product Introduction

Whether an enterprise can quickly launch MDI Two Componment Polyester Type Casting PU, PU ROD, Hot Casting Polyurethane Prepolyer to the market is an important content to obtain the advantage of business differentiation. In this highly competitive era, we have a highly competitive team, and the team is still growing together. With reference to the international model, we have built a management structure for large group companies, established a standardized corporate governance structure, and implemented a system of centralized decision-making, hierarchical management, and professional operation. Industrial transformation and social progress have always been driven by the development of new technologies. We dig deeper into industrial integration opportunities, improve the industrial layout, and continuously improve the quality and efficiency of our development.

Characteristics of MDI raw materials

1. Under conventional hardness, TDI and MDI products have no great difference in strength index, but will have obvious improvement in elasticity and wear resistance.

MDI products will have better wear life and softer hand feeling.

Indicators

Polyester TDI

Polyester MDI

Hardness (shA)

90

90

Tensile strength (Mpa)

51

48

Elongation (%)

577

546

Tear strength (KN/m)

107

102

Rebound (%)

30

40

Wear (mm3)

50

38

2.Fast reaction rate

With high NCO content and catalyst intervention, the reaction rate of MDI feedstock is 1-2 times faster than that of TDI series feedstock.

3.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

4.Low application temperature of materials

Because of the high activity of MDI, the application temperature of MDI raw materials is much lower than that of TDI series raw materials in order to prevent the degradation of physical properties of final products caused by self-polymerization of raw material.

5. Because of the high resilience and flexibility, MDI series products are much better than TDI series products in the application effect of sieve plate. The improvement of elasticity is helpful to improve the impact wear resistance and self-cleaning effect of products.

Type

HJ2285M

HJ2290M

HJ2295M

HJ2385M

HJ2390M

HJ2395M

NCO content /%

6.0±0.2

7.5±0.2

8.8±0.2

6.0±0.2

7.5±0.2

8.8±0.2

Appearance in 20℃

PTMEG type,white solid

Polyester type,white solid

1,4-BD dosage (100gPUP )/g

6.2

7.7

9.1

6.2

7.7

9.1

Viscosity(85℃)/mPa·s

1300-1500

900-1100

750-850

1300-1500

1100-1300

900-1100

Mixing temperature/℃ (PUP/1,4BD)

85/40

85/40

80/40

85/40

85/40

80/40

Catalyst addition dosage (1000gPUP)/g

Catalyst addition dosage (1000gPUP)/g

Gel time /min

8—10

5—7

4—6

8—10

5—7

4—6

Vulcanization Time (100-110℃)/h

24-48

24-48

24-48

24-48

24-48

24-48

Hardness(shore A)

85±2

90±2

95±2

85±2

90±2

95±2

Tensile strength/MPa

34-39

37-42

43-48

42-47

48-53

52-57

100% Modulus /MPa

4—6

5—8

10—14

3—6

8—10

10—13

300%Modulus /MPa

10—15

13—18

20—30

8—14

16—20

20—24

Elongation at break/ %

360-460

560-660

440-540

530-630

580-680

480-580

Tear strength(KN/m)

60-70

95-105

105-115

75-85

105-115

115-125

Rebound/ %

48-50

46-48

45-47

45-47

42-45

40-43

Specific gravity(25℃)(g/ cm3

1.11

1.11

1.12

1.23

1.23

1.24

DIN Abrasion loss /mm³

≤38

≤35

≤32

≤38

≤38

≤36

We have a perfect after-sales service system, to ensure that customers use our high-quality Cn Back Polyurethane PU Plate Sheets with Cn Layer and enjoy our thoughtful service. We guarantee the quality of our products with the fastest speed, the most effective method, and the most advanced technology, and contact your worries. We assume social responsibilities, are keen on public welfare undertakings, give back to the society, and promote harmonious development.

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