Quasi MDI-terminated system

Quasi MDI-terminated PTMG system

DESCRIPTION Component: DY2513 is consist by Components ABC. Component A is polyol, B is polyurethane prepolymer which ended up with isocynate, C is chain extender. Characteristic: The final product enjoys good anti resistance ability, good rebound. And the hardness can be adjusted by the different ratio. The color can be adjusted by pigment. Application: This material was used to produce Polyurethane sieves, PU rollers, cleaning pigs (discs) and other elastomer. SPECIFICATION

Type

DY2513-B

DY2513-A

DY2513-C

NCO/%

13.1

Operation temperature /℃

45

50

45

Viscosity mPa·s/

800

1200

30

Prepolymer

DY2513-B

Chain extender

DY2513-A﹢DY2513-C

Hardness /shore A

60

65

70

75

80

85

90

95

DY2513-B(ratio, by weight )

100

100

100

100

100

100

100

100

DY2513-A(ratio, by weight )

180

150

120

100

80

60

40

20

DY2513-C(ratio, by wight)

5.7

7

8.4

9.3

10.2

11.1

12

12.9

Catalyst/total amount A+B+C %

0.6

0.6

0.6

0.45

0.3

0.3

0.24

0.24

Mold temperature/℃

100

Gel time/min

230

230

220

220

230

230

210

210

Open Mold Time/ min

60

50

40

40

40

40

40

40

Quasi MDI-terminated Polyester system

DESCRIPTION

It is used to produce Polyurethane sieves, PU rollers and other elastomer. It should be processed by mid-temperature casting machine.

The final product enjoys good anti resistance ability, good rebound. And the hardness can be adjusted by the different ratio. The color can be adjusted by pigment. Application: automotive kits, pipe cleaners, etc., polyurethane large or small product components. SPECIFICATION

Type

DY3516-B

DY3516-A

DY3516-C

NCO/%

16.5±0.2

Operation temperature /℃

45

70

45

Viscosity mPa·s/

700

730

30

Prepolymer

DY3516-B

Chain extender

DY3516-A+DY3516-C

Hardness /shore A

55

60

65

70

75

80

85

90

DY3516-B(ratio, by weight)

100

100

100

100

100

100

100

100

DY3516-A(ratio, by weight)

380

180

160

130

110

100

80

60

DY3516-C(ratio, by weight)

0

9.1

10

11.4

12.3

12.7

13.6

14.5

Catalyst/total amount A+B+C %

0.4

0.4

0.4

0.4

0.3

0.3

0.3

0.3

Mold temperature/℃

100

Gel time/min

5

5

5

5

5

4

4

4

Open Mold Time/ min

50

35

35

30

30

30

30

30

Post cure time(90℃)/h

16

AUTOMATIC CONTROL The production is controlled by DCS system, and packing by automatic filling machine. Package is 200KG/DRUM Or 20KG/DRUM.

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