Polyurethane Polymeric Mdi Isocyanate Ab Materials Rigid Insulation Spray Foam

Polyurethane Polymeric Mdi Isocyanate Ab Materials Rigid Insulation Spray Foam

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

We have a R & D team with many years of experience, providing customers with high-end products and services. By leveraging our honesty, dependability and quality, our company aims to be a pioneer in the sales of Zinc Borate 2335 80, Hot Casting Polyurethane Prepolyer, PTMEG Type MDI System Polyurethane Elastomer. Talents are the source of enterprise development and the foundation of success. Our company adheres to the talent resource strategy of 'absorbing talents, cultivating talents and treating talents well', and creates a good atmosphere of caring for and valuing talents. We bring long-term, sustainable value to our shareholders by protecting and fully and efficiently utilizing the company's assets. We give full play to the company's core strengths of scientific and technological innovation, pay attention to the development of cutting-edge science and technology, and create superior performance products to meet customer requirements and enhance customer satisfaction. Corporate development, people-oriented, our company has many senior technical elites leading all employees to innovate, full of vitality, and pioneering teamwork spirit, laying the foundation for the company's steady 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

Our company has been serving every customer in the world with high-quality, high-performance Polyurethane Polymeric Mdi Isocyanate Ab Materials Rigid Insulation Spray Foam, and always insists on satisfying customers with pre-sales consultation, program consultation and after-sales service. Our company always adheres to the business policy of 'heart service, customer first, starting from user demand, and finally achieving win-win'. With the business philosophy of 'quality service promotes product sales', we forge ahead in the industry. The high-quality service solves the worries for many users and wins the high praise and trust of them!

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