CN110143597A - A kind of dedicated white carbon black of off-road tire and preparation method thereof - Google Patents
A kind of dedicated white carbon black of off-road tire and preparation method thereof Download PDFInfo
- Publication number
- CN110143597A CN110143597A CN201910489731.XA CN201910489731A CN110143597A CN 110143597 A CN110143597 A CN 110143597A CN 201910489731 A CN201910489731 A CN 201910489731A CN 110143597 A CN110143597 A CN 110143597A
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- CN
- China
- Prior art keywords
- carbon black
- white carbon
- sodium silicate
- sulfuric acid
- silicate solution
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
Abstract
The invention discloses a kind of dedicated white carbon black of off-road tire, BET specific surface area is 150~180m2/ g, ultrasonic partial size are 3~4um, prepare sodium silicate solution and sulfuric acid solution by (1)；(2) a part of sodium silicate solution is added to reaction kettle, it is heated to 90~100 DEG C, under 800~1000 revs/min of stirring, reaction kettle is added in sulfuric acid solution and remaining sodium silicate solution simultaneously, control system pH value is 6~8 in adition process, after sodium silicate solution adds, continues plus sulfuric acid tune system pH is to 4~5, insulation reaction；(3) after the reaction was completed, it is filtered, washed, dries, obtain the dedicated white carbon black of off-road tire.Compared with existing white carbon black, white carbon black of the invention can preferably improve the flexural property of rubber, be of great significance to the service life for extending off-road tire.
Description
Technical field
The present invention relates to dedicated white carbon blacks of a kind of off-road tire and preparation method thereof.
Background technique
Offroad vehicle travel speed is fast, and broken terrain when driving, off-road tire can also occur with ground
Sharp impacts avoid tire from occurring blowing out and leading to safe thing in the case where running at high speed to improve the safety of offroad vehicle traveling
Therefore to the flexural property of off-road tire, more stringent requirements are proposed.Research and development are exclusively used in the white carbon black of off-road tire, and raising is got over
The flexural property of wild tire for vehicles tyre surface, to the mileage travelled for increasing tire, the service life for extending tire is of great significance.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of the dedicated white carbon black of off-road tire.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of dedicated white carbon black of off-road tire, it is characterized in that: BET specific surface area is 150~180m2/ g, ultrasonic grain
Diameter is 3~4um.
The preparation method of the above-mentioned dedicated white carbon black of off-road tire, includes the following steps:
(1) sodium silicate solution and sulfuric acid solution are prepared；
(2) a part of sodium silicate solution is added to reaction kettle, 90~100 DEG C is heated to, at 800~1000 revs/min
Under stirring, reaction kettle is added simultaneously in sulfuric acid solution and remaining sodium silicate solution, in adition process control system pH value 6~
8, after sodium silicate solution adds, continues plus sulfuric acid tune system pH is to 4~5, insulation reaction；
(3) after the reaction was completed, it is filtered, washed, dries, obtain the dedicated white carbon black of off-road tire.
Preferably, the concentration of the sodium silicate solution is 40~80g/L, and the concentration of sulfuric acid solution is 2~4mol/L.
Preferably, the time of insulation reaction is 20~30 minutes.
Preferably, the drying is spray drying.
Specific embodiment
The specific technical solution of the present invention is described in further detail below by specific embodiment.
Embodiment 1
A kind of preparation method of the dedicated white carbon black of off-road tire, includes the following steps:
(1) sodium metasilicate is soluble in water, water-insoluble is removed, the sodium silicate solution that concentration is 80g/L is configured to, by dense sulphur
Acid is added to the water, and is configured to the sulfuric acid solution that concentration is 4mol/L；
(2) 20% sodium silicate solution is added to reaction kettle, 90 DEG C are heated to, under 1000 revs/min of stirring, by sulphur
Reaction kettle is added simultaneously in acid solution and remaining sodium silicate solution, and for control system pH value 6~8, sodium metasilicate is molten in adition process
After liquid adds, continue to add sulfuric acid tune system pH to 4, insulation reaction 20 minutes；
(3) after the reaction was completed, after slurry is filtered, washed with plate and frame filter press, spray drying obtains the cross-country vehicle wheel
The dedicated white carbon black of tire, the BET specific surface area of product are 160m2/ g, ultrasonic partial size be 3~4um (2% aqueous solution of test condition,
80w power, ultrasonic 35min).
Comparative example 1
Compared with Example 1, the mixing speed of step (2) is 300 revs/min.
Embodiment 2
A kind of preparation method of the dedicated white carbon black of off-road tire, includes the following steps:
(1) sodium metasilicate is soluble in water, water-insoluble is removed, the sodium silicate solution that concentration is 60g/L is configured to, by dense sulphur
Acid is added to the water, and is configured to the sulfuric acid solution that concentration is 3mol/L；
(2) 20% sodium silicate solution is added to reaction kettle, 95 DEG C are heated to, under 900 revs/min of stirring, by sulphur
Reaction kettle is added simultaneously in acid solution and remaining sodium silicate solution, and for control system pH value 6~8, sodium metasilicate is molten in adition process
After liquid adds, continue to add sulfuric acid tune system pH to 5, insulation reaction 25 minutes；
(3) after the reaction was completed, after slurry is filtered, washed with plate and frame filter press, spray drying obtains the cross-country vehicle wheel
The dedicated white carbon black of tire, the BET specific surface area of product are 155m2/ g, ultrasonic partial size are 3~4um.
Embodiment 3
A kind of preparation method of the dedicated white carbon black of off-road tire, includes the following steps:
(1) sodium metasilicate is soluble in water, water-insoluble is removed, the sodium silicate solution that concentration is 40g/L is configured to, by dense sulphur
Acid is added to the water, and is configured to the sulfuric acid solution that concentration is 2mol/L；
(2) 30% sodium silicate solution is added to reaction kettle, 100 DEG C are heated to, under 800 revs/min of stirring, by sulphur
Reaction kettle is added simultaneously in acid solution and remaining sodium silicate solution, and for control system pH value 6~8, sodium metasilicate is molten in adition process
After liquid adds, continue to add sulfuric acid tune system pH to 4, insulation reaction 30 minutes；
(3) after the reaction was completed, after slurry is filtered, washed with plate and frame filter press, spray drying obtains the cross-country vehicle wheel
The dedicated white carbon black of tire, the BET specific surface area of product are 178m2/ g, ultrasonic partial size are 3~4um.
White carbon black prepares vulcanizate by HG/T2404-2008, by the resistance to flexion (500,000 of GB/T13934-2006 test vulcanizate
It is secondary) performance is as a result as follows:
| Embodiment 1 | Comparative example 1 | Embodiment 2 | Embodiment 3 | |
| Be cracked grade | 1 grade | 2 grades | 1 grade | 1 grade |
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (5)
1. a kind of dedicated white carbon black of off-road tire, it is characterised in that: BET specific surface area is 150~180m2/ g, ultrasonic partial size are
3~4um.
2. the preparation method of the dedicated white carbon black of off-road tire described in claim 1, includes the following steps:
(1) sodium silicate solution and sulfuric acid solution are prepared；
(2) a part of sodium silicate solution is added to reaction kettle, 90~100 DEG C is heated to, in 800~1000 revs/min of stirring
Under, reaction kettle is added simultaneously in sulfuric acid solution and remaining sodium silicate solution, control system pH value is 6~8 in adition process, silicon
After acid sodium solution adds, continues plus sulfuric acid tune system pH is to 4~5, insulation reaction；
(3) after the reaction was completed, it is filtered, washed, dries, obtain the dedicated white carbon black of off-road tire.
3. preparation method according to claim 2, it is characterised in that: the concentration of the sodium silicate solution is 40~80g/
L, the concentration of sulfuric acid solution are 2~4mol/L.
4. preparation method according to claim 2, it is characterised in that: the time of insulation reaction is 20~30 minutes.
5. preparation method according to claim 2, it is characterised in that: the drying is spray drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489731.XA CN110143597A (en) | 2019-06-05 | 2019-06-05 | A kind of dedicated white carbon black of off-road tire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489731.XA CN110143597A (en) | 2019-06-05 | 2019-06-05 | A kind of dedicated white carbon black of off-road tire and preparation method thereof |
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| CN110143597A true CN110143597A (en) | 2019-08-20 |
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| CN201910489731.XA Pending CN110143597A (en) | 2019-06-05 | 2019-06-05 | A kind of dedicated white carbon black of off-road tire and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950347A (en) * | 2019-12-30 | 2020-04-03 | 无锡恒诚硅业有限公司 | Method for regulating and controlling apparent particle size of white carbon black |
| CN110980744A (en) * | 2019-12-30 | 2020-04-10 | 无锡恒诚硅业有限公司 | Preparation method of white carbon black with controllable primary particle size |
| CN111777875A (en) * | 2020-07-03 | 2020-10-16 | 确成硅化学股份有限公司 | White carbon black for reducing rolling resistance of tire |
| CN111875989A (en) * | 2020-07-15 | 2020-11-03 | 确成硅化学股份有限公司 | White carbon black special for aircraft tire marking adhesive and preparation method thereof |
| CN113321217A (en) * | 2021-06-30 | 2021-08-31 | 确成硅化学股份有限公司 | Preparation method of special high-dispersion white carbon black for high-ice-surface-gripping tire |
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| CN1916059A (en) * | 2005-08-16 | 2007-02-21 | 周玉芳 | Carbon white in use for synthetic rubber, and preparation method |
| CN107697921A (en) * | 2017-10-30 | 2018-02-16 | 无锡恒诚硅业有限公司 | A kind of high-dispersity white carbon black and preparation method thereof |
| CN108046275A (en) * | 2017-12-06 | 2018-05-18 | 福建正盛无机材料股份有限公司 | A kind of preparation method of alkalescence white carbon |
-
2019
- 2019-06-05 CN CN201910489731.XA patent/CN110143597A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916059A (en) * | 2005-08-16 | 2007-02-21 | 周玉芳 | Carbon white in use for synthetic rubber, and preparation method |
| CN107697921A (en) * | 2017-10-30 | 2018-02-16 | 无锡恒诚硅业有限公司 | A kind of high-dispersity white carbon black and preparation method thereof |
| CN108046275A (en) * | 2017-12-06 | 2018-05-18 | 福建正盛无机材料股份有限公司 | A kind of preparation method of alkalescence white carbon |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950347A (en) * | 2019-12-30 | 2020-04-03 | 无锡恒诚硅业有限公司 | Method for regulating and controlling apparent particle size of white carbon black |
| CN110980744A (en) * | 2019-12-30 | 2020-04-10 | 无锡恒诚硅业有限公司 | Preparation method of white carbon black with controllable primary particle size |
| CN110980744B (en) * | 2019-12-30 | 2023-01-10 | 无锡恒诚硅业有限公司 | Preparation method of white carbon black with controllable primary particle size |
| CN111777875A (en) * | 2020-07-03 | 2020-10-16 | 确成硅化学股份有限公司 | White carbon black for reducing rolling resistance of tire |
| CN111875989A (en) * | 2020-07-15 | 2020-11-03 | 确成硅化学股份有限公司 | White carbon black special for aircraft tire marking adhesive and preparation method thereof |
| CN113321217A (en) * | 2021-06-30 | 2021-08-31 | 确成硅化学股份有限公司 | Preparation method of special high-dispersion white carbon black for high-ice-surface-gripping tire |
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Application publication date: 20190820 |