Cellphone Case TPU Thermoplastic Polyurethane Granules

Cellphone Case TPU Thermoplastic Polyurethane Granules

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 always pursue the most advanced technology, the most excellent quality, to provide the best PTMEG Type MDI System Polyurethane Elastomer, PU RUBBER SHEET, MDI Two Componment Polyester Type Casting PU to customers! It is especially important that we have a complete production chain and skilled technicians, therefore in addition to independent development and design of new products, we can also complete customer sample processing. We will continue to meet challenges, pioneer and innovate, and use it for innovation to build the company into the most competitive company. Over the years, we have taken good and stable quality, punctual delivery, reasonable prices and sincere service as the company's business philosophy and won a high reputation from customers at home and abroad, which provides a guarantee for our cooperation. We uphold the spirit of "entrepreneurship, innovation and creativity", and provide value-added services to our customers, which is the key to win their trust.

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 have always maintained a dedication to excellence and a strong sense of social responsibility to actively participate in the Cellphone Case TPU Thermoplastic Polyurethane Granules industry. What our customers are pursuing is exactly what we have been working hard for. We will continue to provide our customers with the highest quality products and services. We sincerely welcome domestic and foreign businessmen to negotiate business and go hand in hand to create brilliant future. We advocate that any position and any employee must be customer-centric, with customer satisfaction as the pursuit and goal of work.

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