PRODUCT AND SERVICE

Strong research and development and production capacity in textile auxiliaries, polyurethane waterproofing additives and other materials.

Polyurethane/Polyurea
PTMEG series Polyurethane Prepolymer

PTMEG series Polyurethane Prepolymer

Product Details

Characteristics:the end product have good abrasion resistance,water resistance,germ proof,excellent mechanical properities,color regualting by adding pigment.

Application: it can be used to make rods, ,rollers,caster wheel,sealing ring,sieve palste and other polyurethance elastomers.

Operation Points:  After vacuum degassing at 80-85℃,blending with melted MOCA,,degassing and then casting,vulcanization molding.This is apply to manual or casting machines

Type

DHK4185

DHK4190

DHK4195

DHK4197

NCO %

3.6±0.1

4.3±0.1

5.5±0.1

6.3±0.2

Density 25oC

1.11

1.11

1.12

1.12

Viscosity 75-80oC

1000-1500

800-1200

700-1000

600-900

Apperanceliquid

Colorless Liquid or Light Yellow Liquid

Operation timemin75-80oC

10-12

8-10

4-6

3-5

Demoulding Time 115oCH

1.1

1

1

1

Post-Cure time 105-110oCH

16

15

15

15

Hardness (Shore A)

83±3

90±2

95±2

97±2

Tensile Strenght/Mpa

33-37

40-45

42-45

45-48

Tearing Strenght/KN/m

85-90

95-100

100-105

105-110

100% Modulus /MPa

6.8

8.1

10.3

11.2

300% Modulus /MPa

13.7

14.1

15.2

17.3

Elongation at break (%)

450-550

420-450

400-430

360-400

Abrasion loss /mm3/1.61Km

≤0.025

≤0.02

≤0.018

≤0.015

Storage:  Store in a cool and dry place,If you can’t use it up at a  time,filling nitrogtn gas and then sealing it. The storage time of original packing is 6months

Packing: 20kgs/drum or 200kg/drum

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Qingdao Hengke Fine Chemicals Co.,Ltd