CN104693843A - Preparation method of environment-friendly white carbon black - Google Patents
Preparation method of environment-friendly white carbon black Download PDFInfo
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- CN104693843A CN104693843A CN201510084417.5A CN201510084417A CN104693843A CN 104693843 A CN104693843 A CN 104693843A CN 201510084417 A CN201510084417 A CN 201510084417A CN 104693843 A CN104693843 A CN 104693843A
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- carbon black
- white carbon
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- environment protection
- deionized water
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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
The invention belongs to chemical production technical field, relate to a kind of preparation method of white carbon black, specifically relate to carry out to existing commercial white carbon black the preparation method that modification makes it to become a kind of environment protection white carbon black.
Background technology
The rubber size of white carbon black reinforcement more and more causes the attention of people, and the consumption of white carbon black is almost annual all in growth, and the reason of growth comprises: obtain better fuel oil because reducing rolling resistance and save, extend the work-ing life of tyre surface.But the surface because of white carbon black also exists the hydroxyl of high polarity, make white carbon black incompatible with rubber.Because white carbon black has the trend of gathering, mechanical means can not force white carbon black to disperse well in rubber, and then the physicals of cross-linked rubber can not reach optimum regime.
Summary of the invention
The present invention is directed to above-mentioned deficiency, a kind of preparation method of environment protection white carbon black is proposed, the present invention with commercial white carbon black for raw material, be main properties-correcting agent with the segmented copolymer of divinyl pyridine-styrene butadiene or epoxidized natural latex, modification is carried out to commercial white carbon black, improves the mixing behavior of white carbon black, make rubber eat powder fast, reduce glue furnacing temperature, improve refining glue efficiency.
Technical scheme of the present invention is: a kind of preparation method of environment protection white carbon black, in white carbon black, add properties-correcting agent obtain, it is characterized in that, described properties-correcting agent joins stirring in reactor by the first component and second component according to weight ratio 1:1 ~ 1:5 and makes for 0.5 ~ 1.5 hour, described first component is by the sodium hydroxide 0.01 ~ 0.4 of weight part, sodium salicylate 0.01 ~ 0.2, deionized water 5 ~ 50 forms, described second component is by the natural rubber latex 0 ~ 100 of weight part, divinyl pyridine-styrene-butadiene copolymer latex 0.1 ~ 100, epoxidized natural latex 0 ~ 100, deionized water 0 ~ 2000, ammoniacal liquor 0 ~ 20 forms, described white carbon black grinds to form white carbon black suspension after adding deionized water by commercial white carbon black, after properties-correcting agent being added white carbon black suspension agitation, by drying, environment protection white carbon black is obtained after pulverizing.
The preparation method of described properties-correcting agent first component is containing following steps:
(1) deionized water of required parts by weight is chosen;
(2) in deionized water, add sodium hydroxide, the sodium salicylate of required parts by weight, be stirred to and dissolve completely.
The preparation method of described properties-correcting agent second component is containing following steps:
(1) natural rubber latex of required parts by weight, divinyl pyridine-styrene-butadiene copolymer latex and epoxidized natural latex are mixed into mixing latex;
(2) in mixing latex, add deionized water, be stirred into water and milk mixture;
(3) in water and milk mixture, add the ammoniacal liquor of required parts by weight, stir.
The solid content of the water and milk mixture in the preparation process (2) of described properties-correcting agent second component is 20 ~ 70%.
Described white carbon black suspension is that 1 ~ 100 commercial white carbon black feed stock joins in deionized water and makes the suspension that mass fraction is 20% ~ 60% by parts by weight;
Described grinding is joined in deionized water by commercial white carbon black to grind with sand mill, and milling time is 1.5 ~ 2.5 hours.
Described drying be adopt in spraying dry, microwave drying and far infrared drying one or more.
The temperature of described drying is 100 ~ 150 DEG C, and the dry time is 3 ~ 4 hours.
In described divinyl pyridine-styrene-butadiene copolymer latex, the content of divinyl pyridine is 10 ~ 30%.
Beneficial effect of the present invention is: the preparation method of a kind of environment protection white carbon black provided by the invention, compared with existing goods white carbon black, there is low-heat-generation, lowly roll resistance, high resilience, high tensile, high maximum elongation, good processability, eat the powder outstanding advantage such as fast, be conducive to the energy consumption reducing tire, reduce the temperature of refining glue, improve the efficiency of refining glue.
Accompanying drawing explanation
Fig. 1 is the natural rubber sizing material physical and mechanical properties contrast table one of commercial white carbon black and environment protection white carbon black.
Fig. 2 is the natural rubber sizing material physical and mechanical properties contrast table two of commercial white carbon black and environment protection white carbon black.
Fig. 3 is the natural rubber sizing material physical and mechanical properties contrast table three of commercial white carbon black and environment protection white carbon black.
Embodiment
Embodiment 1
The carbon black modified agent prescription of environment protection white:
First component: sodium hydroxide 0.041, sodium salicylate 0.022, deionized water 26.
Second component: divinyl pyridine-styrene-butadiene copolymer latex 25.6(solid content 50%), deionized water 30, ammoniacal liquor 3.4.
Sizing material basic recipe:
Natural rubber 100, ZnO10, stearic acid 2, oxidation inhibitor (AO-20) 2, commercial white carbon black 65, sulphur 2.5, CZ0.4, promotor (DM) 1.
Adopt environment protection white carbon black to prepare rubber unvulcanizate in experiment with in two roller mill, roller speed ratio is 1:1.42; Mixing with the order of addition(of ingredients) of rubber, small powder (referring to CZ, DM, ZnO, stearic acid and AO-20), white carbon black and cross-linked rubber according to selected formula, after slice, 25t compression molding glue is adopted to prepare 2mm slab-like material sample (in mixing process by sulfurizing time sulfuration, commercial white carbon black needs 3 sections mixingly just to mix, and environment protection white carbon black only need 1 section mixing).
The physical and mechanical properties of the testing method provided according to current latest national standards GB/T 528-1998, GB/T 529-1999 to the natural rubber sizing material of commercial white carbon black and environment protection white carbon black is tested, and test data contrast as shown in Figure 1.
Embodiment 2
The carbon black modified agent prescription of environment protection white:
First component: sodium hydroxide 0.015, sodium salicylate 0.2, deionized water 25.
Second component: divinyl pyridine-styrene-butadiene copolymer latex 100(solid content 50%), deionized water 80, ammoniacal liquor 12.4.
Sizing material basic recipe:
Natural rubber 100, ZnO10, stearic acid 2, oxidation inhibitor (AO-20) 2, white carbon black 65, sulphur 2.5, CZ0.4, promotor (DM) 1.
Adopt environment protection white carbon black to prepare rubber unvulcanizate in experiment with in two roller mill, roller speed ratio is 1:1.42; Mixing with the order of addition(of ingredients) of rubber, small powder (referring to CZ, DM, ZnO, stearic acid and AO-20), environment protection white carbon black and cross-linked rubber according to selected formula, after slice, 25t compression molding glue is adopted to prepare 2mm slab-like material sample (in mixing process by sulfurizing time sulfuration, commercial white carbon black needs 3 sections mixingly just to mix, and environment protection white carbon black only need 1 section mixing).
The physical and mechanical properties of the testing method provided according to current latest national standards GB/T 528-1998, GB/T 529-1999 to the natural rubber sizing material of commercial white carbon black and environment protection white carbon black is tested, and test data contrast as shown in Figure 2.
Embodiment 3
The carbon black modified agent prescription of environment protection white:
First component: sodium hydroxide 0.035, sodium salicylate 0.1, deionized water 35.
Second component: divinyl pyridine-styrene-butadiene copolymer latex 100(solid content 50%), epoxidized natural latex 20, deionized water 150, ammoniacal liquor 15.8.
Sizing material basic recipe:
Natural rubber 100, ZnO10, stearic acid 2, oxidation inhibitor (AO-20) 2, white carbon black 65, sulphur 2.5, CZ0.4, promotor (DM) 1.
Adopt environment protection white carbon black to prepare rubber unvulcanizate in experiment with in two roller mill, roller speed ratio is 1:1.42; Mixing with the order of addition(of ingredients) of rubber, small powder (referring to CZ, DM, ZnO, stearic acid and AO-20), white carbon black and cross-linked rubber according to selected formula, after slice, 25t compression molding glue is adopted to prepare 2mm slab-like material sample (in mixing process by sulfurizing time sulfuration, commercial white carbon black needs 3 sections mixingly just to mix, and environment protection white carbon black only need 1 section mixing).
The physical and mechanical properties of the testing method provided according to current latest national standards GB/T 528-1998, GB/T 529-1999 to the natural rubber sizing material of commercial white carbon black and environment protection white carbon black is tested, and test data contrast as shown in Figure 3.
Claims (9)
1. the preparation method of an environment protection white carbon black, in white carbon black, add properties-correcting agent obtain, it is characterized in that, described properties-correcting agent joins stirring in reactor by the first component and second component according to weight ratio 1:1 ~ 1:5 and makes for 0.5 ~ 1.5 hour, described first component is by the sodium hydroxide 0.01 ~ 0.4 of weight part, sodium salicylate 0.01 ~ 0.2, deionized water 5 ~ 50 forms, described second component is by the natural rubber latex 0 ~ 100 of weight part, divinyl pyridine-styrene-butadiene copolymer latex 0.1 ~ 100, epoxidized natural latex 0 ~ 100, deionized water 0 ~ 2000, ammoniacal liquor 0 ~ 20 forms, described white carbon black grinds to form white carbon black suspension after adding deionized water by commercial white carbon black, after properties-correcting agent being added white carbon black suspension agitation, by drying, environment protection white carbon black is obtained after pulverizing.
2. the preparation method of a kind of environment protection white carbon black according to claim 1, is characterized in that: the preparation method of described properties-correcting agent first component is containing following steps:
(1) deionized water of required parts by weight is chosen;
(2) in deionized water, add sodium hydroxide, the sodium salicylate of required parts by weight, be stirred to and dissolve completely.
3. the preparation method of a kind of environment protection white carbon black according to claim 1, is characterized in that: the preparation method of described properties-correcting agent second component is containing following steps:
(1) natural rubber latex of required parts by weight, divinyl pyridine-styrene-butadiene copolymer latex and epoxidized natural latex are mixed into mixing latex;
(2) in mixing latex, add deionized water, be stirred into water and milk mixture;
(3) in water and milk mixture, add the ammoniacal liquor of required parts by weight, stir.
4. the preparation method of a kind of environment protection white carbon black according to claim 3, is characterized in that: the solid content of the water and milk mixture in the preparation process (2) of described properties-correcting agent second component is 20 ~ 70%.
5. the preparation method of a kind of environment protection white carbon black according to claim 1, is characterized in that: described white carbon black suspension is that 1 ~ 100 commercial white carbon black feed stock joins in deionized water and makes the suspension that mass fraction is 20% ~ 60% by parts by weight.
6. the preparation method of a kind of environment protection white carbon black according to claim 1, is characterized in that: described grinding is joined in deionized water by commercial white carbon black to grind with sand mill, and milling time is 1.5 ~ 2.5 hours.
7. the preparation method of a kind of environment protection white carbon black according to claim 1, is characterized in that: described drying be adopt in spraying dry, microwave drying and far infrared drying one or more.
8. the preparation method of a kind of environment protection white carbon black according to claim 7, is characterized in that: the temperature of described drying is 100 ~ 150 DEG C, and the dry time is 3 ~ 4 hours.
9. the preparation method of a kind of environment protection white carbon black according to claim 1, is characterized in that: in described divinyl pyridine-styrene-butadiene copolymer latex, the content of divinyl pyridine is 10 ~ 30%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419407A (en) * | 2015-11-29 | 2016-03-23 | 北京化工大学 | Preparation method of skim rubber modified white carbon black easy to mix |
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| CN1306010A (en) * | 2000-12-27 | 2001-08-01 | 中国科学院长春应用化学研究所 | Metallocene catalyst with nm-class hybridized composite organic-inorganic carrier and styrene polymerization |
| CN1369511A (en) * | 2001-02-12 | 2002-09-18 | 上海绿纳化工材料技术有限公司 | Process for preparing hybridized substance with core-shell structre from organic high-molecular material and nano inorganic material |
| CN1378567A (en) * | 1999-10-20 | 2002-11-06 | 巴斯福股份公司 | Method for producing aqueous dispersion of particles that are made up of polymers and inorganic solid matter which consists of fine particles |
| CN101402030A (en) * | 2008-11-11 | 2009-04-08 | 南京大学 | P(St-4VP)-SiO2 nano-complex particle and synthesis thereof |
| CN102504613A (en) * | 2011-11-11 | 2012-06-20 | 山东久隆高分子材料有限公司 | Preparation method of modified fumed silica for LED packaging reinforcement |
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2015
- 2015-02-16 CN CN201510084417.5A patent/CN104693843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1378567A (en) * | 1999-10-20 | 2002-11-06 | 巴斯福股份公司 | Method for producing aqueous dispersion of particles that are made up of polymers and inorganic solid matter which consists of fine particles |
| CN1306010A (en) * | 2000-12-27 | 2001-08-01 | 中国科学院长春应用化学研究所 | Metallocene catalyst with nm-class hybridized composite organic-inorganic carrier and styrene polymerization |
| CN1369511A (en) * | 2001-02-12 | 2002-09-18 | 上海绿纳化工材料技术有限公司 | Process for preparing hybridized substance with core-shell structre from organic high-molecular material and nano inorganic material |
| CN101402030A (en) * | 2008-11-11 | 2009-04-08 | 南京大学 | P(St-4VP)-SiO2 nano-complex particle and synthesis thereof |
| CN102504613A (en) * | 2011-11-11 | 2012-06-20 | 山东久隆高分子材料有限公司 | Preparation method of modified fumed silica for LED packaging reinforcement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419407A (en) * | 2015-11-29 | 2016-03-23 | 北京化工大学 | Preparation method of skim rubber modified white carbon black easy to mix |
| CN105419407B (en) * | 2015-11-29 | 2018-03-30 | 北京化工大学 | A kind of clear modified rubber of glue easily mixes the preparation method of white carbon |
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Application publication date: 20150610 |
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