Preparation method of environment-friendly white carbon black

A technology of silica and environmental protection, which is applied in chemical instruments and methods, fibrous fillers, dyeing physical treatment, etc., can solve the problems that the physical properties of vulcanized rubber cannot reach the best state, and cannot force silica to disperse, etc., to achieve The effect of lowering the temperature, fast powder consumption, and high elongation at break

Inactive Publication Date: 2015-06-10
YANGZHOU PEIEN RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the tendency of silica to aggregate, mechanical methods cannot force silica to disperse well in rubber, and the physical properties of vulcanized rubber cannot reach the best state.

Method used

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  • Preparation method of environment-friendly white carbon black
  • Preparation method of environment-friendly white carbon black
  • Preparation method of environment-friendly white carbon black

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Environment-friendly white carbon black modifier formula:

[0024] The first component: sodium hydroxide 0.041, sodium salicylate 0.022, deionized water 26.

[0025] The second component: divinylpyridine-styrene-butadiene copolymer latex 25.6 (solid content 50%), deionized water 30, ammonia water 3.4.

[0026] Basic formula of glue:

[0027] Natural rubber 100, ZnO10, stearic acid 2, antioxidant (AO-20) 2, commercial silica 65, sulfur 2.5, CZ0.4, accelerator (DM) 1.

[0028] Environmentally friendly white carbon black was used to prepare compound rubber on an experimental double-roll mill, and the speed ratio of the rollers was 1:1.42; according to the selected formula, rubber, small materials (referring to CZ, DM, ZnO, stearic acid and AO -20), white carbon black and vulcanized rubber are mixed in the order of feeding, and after the film is produced, 2mm thick sheet material samples are prepared by vulcanizing 25t of flat vulcanized rubber according to the positive c...

Embodiment 2

[0031] Environment-friendly white carbon black modifier formula:

[0032] The first component: sodium hydroxide 0.015, sodium salicylate 0.2, deionized water 25.

[0033] The second component: divinylpyridine-styrene-butadiene copolymer latex 100 (solid content 50%), deionized water 80, ammonia water 12.4.

[0034] Basic formula of glue:

[0035] Natural rubber 100, ZnO10, stearic acid 2, antioxidant (AO-20) 2, silica 65, sulfur 2.5, CZ0.4, accelerator (DM) 1.

[0036] Environmentally friendly white carbon black was used to prepare compound rubber on an experimental double-roll mill, and the speed ratio of the rollers was 1:1.42; according to the selected formula, rubber, small materials (referring to CZ, DM, ZnO, stearic acid and AO -20), environment-friendly white carbon black and vulcanized rubber are mixed in the order of feeding, after the sheet is produced, use 25t flat vulcanized rubber to vulcanize according to the normal curing time to prepare a 2mm thick sheet mate...

Embodiment 3

[0039] Environment-friendly white carbon black modifier formula:

[0040] The first component: sodium hydroxide 0.035, sodium salicylate 0.1, deionized water 35.

[0041] The second component: divinylpyridine-styrene-butadiene copolymer latex 100 (solid content 50%), epoxidized natural rubber latex 20, deionized water 150, ammonia water 15.8.

[0042] Basic formula of glue:

[0043] Natural rubber 100, ZnO10, stearic acid 2, antioxidant (AO-20) 2, silica 65, sulfur 2.5, CZ0.4, accelerator (DM) 1.

[0044] Environmentally friendly white carbon black was used to prepare compound rubber on an experimental double-roll mill, and the speed ratio of the rollers was 1:1.42; according to the selected formula, rubber, small materials (referring to CZ, DM, ZnO, stearic acid and AO -20), white carbon black and vulcanized rubber are mixed in the order of feeding, and after the film is produced, 2mm thick sheet material samples are prepared by vulcanizing 25t of flat vulcanized rubber acc...

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Abstract

The invention provides a preparation method of environment-friendly white carbon black, and belongs to the technical field of chemical production. The environment-friendly white carbon black is prepared by adding a modifier in white back, wherein the modifier is prepared by adding a first component and a second component in a weight ratio of 1:(1-1.5) to a reaction kettle and then agitating for 0.5 to 1.5 hours; the first component is prepared from the following components in parts by weight: 0.01 to 0.4 part of sodium hydroxide, 0.01 to 0.2 part of sodium salicylate, and 5 to 50 parts of deionized water; the second component is prepared from the following components in parts by weight: 0 to 100 parts of natural latex, 0.1 to 100 parts of divinyl pyridine-styrene-butadiene copolymer latex, 0 to 100 parts of epoxidized natural rubber, 0 to 2000 parts of deionized water, and 0 to 20 parts of ammonium hydroxide. The deionized water is added to commercial white carbon black and then the commercial white carbon black is grinded into white carbon black suspension, the modifier is added to the suspension and agitated, then the mixture is dried and crushed to obtain the environment-friendly white carbon black.

Description

technical field [0001] The invention belongs to the technical field of chemical production and relates to a preparation method of white carbon black, in particular to a preparation method of modifying the existing commercial white carbon black to make it an environment-friendly white carbon black. Background technique [0002] Silica-reinforced rubber compounds are attracting more and more attention, and the amount of silica is increasing almost every year. The reasons for the growth include: better fuel economy due to lower rolling resistance, and longer tread life. service life. However, due to the presence of highly polar hydroxyl groups on the surface of silica, silica is incompatible with rubber. Due to the tendency of silica to aggregate, mechanical methods cannot force silica to disperse well in rubber, and the physical properties of vulcanized rubber cannot reach the best state. Contents of the invention [0003] The present invention aims at above-mentioned defi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/28C09C3/10C09C3/06C09C3/08C09C3/04C08K9/04C08K9/02C08K3/36C08L7/00
Inventor 卢敏韩晶杰周蓝天李聪刘君武李保松
Owner YANGZHOU PEIEN RUBBER TECH
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