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

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

Example

[0034] Examples 1-3 and Comparative Example 1

[0035] The rubber formulations of Examples 1-3 and Comparative Example 1 and the mass ratios of various raw materials are listed in Table 1.

[0036] Table 1

[0037] Raw materials

[0038] Raw materials

[0039] The preparation process of the rubber compounds of Examples 1-3 and Comparative Example 1: Put the raw materials prepared according to the formula into an open rubber mixer with a roll temperature of 50-60° C. for mixing. Firstly, the raw EPDM rubber rubber is kneaded and broken. After the continuous roll rubber is formed, zinc oxide, magnesium oxide, pre-pulverized tackifying resin and stearic acid are added, and then powdered anise (white carbon) Black and titanium dioxide) and liquid materials (silane coupling agent, paraffin oil, or oligoester, or liquid ethylene propylene rubber), mashed evenly, add accelerator, sulfur, and / or dicumyl peroxide (previously Mix with a small amount of white carbon black), mash it even...

Example Embodiment

[0046] Example 4

[0047] The rubber formula of Example 4 and the quality ratio of various raw materials are as follows:

[0048] EPDM (4725P) 100

[0049] Zinc oxide 10

[0050] Magnesium oxide 10

[0051] Stearic acid 3

[0052] Anti-aging agent (2246) 1.5

[0053] Tackifying resin (H-501) 3

[0054] Tackifying resin (SP1077) 6

[0055] White carbon black (T-150) 75

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

[0057] Titanium dioxide 20

[0058] Oligopolyester (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 rubber compound of Example 4 is the same as that of Examples 1-3, but the differences are as follows: ①The roller temperature of the open rubber mixer is 60-70℃; ②The liquid material is replaced with silane coupling agent, paraff...

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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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