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Automatic Hot Sale New Design PU Wheel Casting Machine /PU Wheel Making Machine ...

Automatic Hot Sale New Design PU Wheel Casting Machine /PU Wheel Making Machine ...

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

Our 3 5 Crystal Water Zinc Borate, Zinc Borate 2335 400, 7 Crystal Water Zinc Borate is known for their reliability, innovation and efficiency, guaranteeing maximum customer satisfaction. In the process of development, we have won the trust and support of our customers and gained a high social reputation. As an independent brand, our company not only inherits the characteristics of craftsmen's high-quality products and services, but also successfully builds our own unique charm and business style. Our company has a strong technical support, after-sales maintenance, and we pay great attention to the needs of customers. 'Only yearning, there will be a future' is not only the slogan of our company, but also the symbol of our company's humanistic spirit. This spurs the team to explore, innovate, forge ahead and develop.

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 produce Automatic Hot Sale New Design PU Wheel Casting Machine /PU Wheel Making Machine ... throughout the world, and we will continue for the new old customer service in line with the practical, high quality, innovation and progress of spirit. While meeting the needs of mass consumption, we further meet the requirements of diversified development trends. Our creativity and core competence have laid the foundation for our sustainable development.

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