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Polyurethane Post Cure Machine for Drying and Hardening

Polyurethane Post Cure Machine for Drying and Hardening

They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.

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Product Introduction

We are searching ahead towards your visit for PU Tube and Pipe, PU Elastomer Finished Product, PTMEG Based Casting Polyurethane Prepolymer. Under the new normal, we should continue to adhere to innovative development and use innovation to solve the problems in the process of moving forward. Our company currently has advanced production equipment, superb technology, cutting-edge talents and perfect quality assurance system. In order to improve customer satisfaction, our company has established a customer complaint management system to correctly handle customer complaints and make use of customer complaint information, so as to promote continuous improvement of the enterprise. All departments strictly in accordance with customer requirements of quality specifications, rigorous production, continuous improvement, to ensure the optimization of the manufacturing process, reduce loss, to provide customers with cheap products, but also to bring customers the confidence of high-quality products.

PTMEG based Casting Polyurethane prepolymer

1. PTMEG based polyurethane prepolymer is the higher level of Polyether prepolymer, they are recommended for applications where parts undergo dynamic stress, etc, they incur lower heat build-up. They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.

2. Specifications,Application and operation details.


PTMEG/TDI system Casting Polyurethane prepolymer

Item

Type

HJ-2185

HJ-2190

HJ-2195

HJ-2197

NCO% Content

3.5±0.2

4.2±0.2

6.0±0.2

6.5±0.2

Density 25℃/(g/cm³)

1.11

1.11

1.12

1.12

Viscosity 80℃/mpa·s

900-1100

800-1000

700-900

600-800

Appearance at 25℃

Colorless transparent liquid

Mix Temperature ℃

Prepolymer /Moca

85℃/115℃

80℃/115℃

75℃/115℃

75℃/115℃

Gel Time /min

13-18

10-15

6-10

3-5

Vulcanization Time (h)

25-16

25-16

25-16

25-16

Physical Properties

Hardness (Shore A)

85±2

90±2

95±2

97±2

Tensile Strength (Mpa)

25-28

33-38

38-45

40-46

100% Modulus (Mpa)

11-12

14-16

16-18

18-20

300% Modulus (Mpa)

18-20

28-30

38-42

40-43

Elongation at Break (%)

360-420

350-400

280-350

250-300

Tear Strength (KN/m)

60-65

75-85

90-100

95-105

Compression permanent deformation %

4-6

4-6

2-4

2-4

DIN Abrasion loss（mm³）

≤45

≤40

≤40

≤40

Resilience %/25℃

40-45

35-40

28-32

26-30

- Product application : PU Rollers, casters, seals, pistons, classification screens, flotation machine impellers, forklift tires, molds, slurry pump linings and other products.

- Operation details:After vacuum degasing at 75-85 ℃, the prepolymer is mixed with melted MOCA for casting and vulcanization. It is suitable for manual and mechanical operation.

- Storage:Store in a cool and dry place and use up as soon as possible after opening; If it cannot be used up at one time, it shall be sealed with nitrogen; The second opening needs to be used for defoaming, and the original storage period is six months.

- Packing:20kg or 200kg iron drum

We are committed to optimizing our Polyurethane Post Cure Machine for Drying and Hardening and customer services with a spirit of unity and unity, under a high level of regulation. We establish a corporate image with quality and service, create corporate benefits with efficient management, forge ahead, and take off together with new and old customers at home and abroad! In the past few years, we have further strengthened cooperation and exchanges with companies in the industry, which has created conditions for the growth of the company's strength.

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