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Rubber compound for rubber for coating chemical fiber bleaching rubber roll

A chemical fiber and covering rubber technology is applied in the field of rubber covering rubber for chemical fiber bleaching rubber rollers, which can solve the problems of difficult forming of rubber rollers and high Mooney viscosity.

Active Publication Date: 2010-08-04
河北春风银星胶辊股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the high hardness EPDM rubber compound is difficult to form due to the high Mooney viscosity

Method used

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  • Rubber compound for rubber for coating chemical fiber bleaching rubber roll
  • Rubber compound for rubber for coating chemical fiber bleaching rubber roll
  • Rubber compound for rubber for coating chemical fiber bleaching rubber roll

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3 and comparative example l

[0035] The sizing formula of embodiment 1-3 and comparative example 1 and the mass proportioning of various raw materials are listed in table 1.

[0036] Table 1

[0037] raw material

Example 1

Example 2

Example 3

Comparative example 1

EPDM Rubber (4045)

100

100

100

100

Zinc oxide

10

10

10

10

magnesium oxide

10

10

10

10

stearic acid

3

3

3

3

Antiaging agent(2246)

1.5

1.5

1.5

1.5

Tackifying resin (H-501)

3

3

3

3

Tackifying Resin (SP 1077)

6

6

6

6

Silica (T-150)

80

80

50

80

Silica (A-200)

30

Silane coupling agent (Si-69)

8

8

8

8

Titanium dioxide

20

20

20

20

Qi polyester (12-I)

8

8

8

Liquid ethylene propylene rubber (CP 80)

10 ...

Embodiment 4

[0047] The sizing material formula of embodiment 4 and the quality proportioning of various raw materials are as follows:

[0048] EPDM rubber (4725P) 100

[0049] Zinc oxide 10

[0050] Magnesium oxide 10

[0051] stearic acid 3

[0052] Antiaging agent (2246) 1.5

[0053] Tackifying resin (H-501) 3

[0054] Tackifying resin (SP1077) 6

[0055] Silica (T-150) 75

[0056] Silane coupling agent (Si-69) 6

[0057] Titanium dioxide 20

[0058] Polyester (12-I) 8

[0059] Liquid polybutadiene resin (Ricon 153) 15

[0060] Paraffin oil (6035) 20

[0061] Accelerator CZ 1.6

[0062] Accelerator DM 0.5

[0063] Accelerator BZ 0.8

[0064] Accelerator TMTD 0.7

[0065] Accelerator DPTT 0.7

[0066] sulfur 6

[0067] Dicumyl peroxide 0.8

[0068] The preparation process of the sizing material in Example 4 is the same as that of Examples 1-3, with the differences: ①The roll temperature of the open rubber mixing machine is 60-70°C; ②The liquid material is replaced with s...

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PUM

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Abstract

The invention relates to a rubber compound for a rubber for coating a chemical fiber bleaching rubber roll. The rubber compound comprises ethylene propylene diene monomer, white carbon black, paraffin oil, polymeric liquid plasticizers (such as oligomer esters, liquid ethylene propylene methylene and liquid high vinyl polybutadiene), sulfur, accelerating agents, dicumyl peroxide and other auxiliaries. The rubber compound has the characteristics of high hardness (the Shore A hardness is 90-95 degrees), white color, excellent bleaching liquid sodium hypochlorite resistance, good processability and suitability for covering and forming on a rubber roll extrusion and winding covering machine.

Description

technical field [0001] The invention relates to a rubber material for covering rubber of chemical fiber bleached rubber rollers. Background technique [0002] Chemical fibers, especially viscose staple fibers, are bleached with bleaching agents in the post-treatment process to achieve the effect of improving whiteness and appearance quality. Commonly used bleaching agents include hydrogen peroxide (hydrogen peroxide) and sodium hypochlorite, and the whiteness of the finished product bleached with sodium hypochlorite is higher than that of hydrogen peroxide. [0003] The chemical staple fiber bleaching rubber roll coated with the sizing material of the present invention is used in the bleaching section of a viscose staple fiber refiner. The main component of the bleaching liquid is sodium hypochlorite, containing 1-1.5g / L of active chlorine, and pH 8-10. According to the conditions of use, the rubber roller covering rubber is required to be white, high hardness (Shore A hard...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L47/00C08L61/06C08K13/02C08K3/36C08K5/12C08K3/22C08K5/01
Inventor 谢忠麟孙洪良李国水姜清文郭文广
Owner 河北春风银星胶辊股份有限公司
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