CN104789029B - A kind of water paint thickening thickening agent - Google Patents
A kind of water paint thickening thickening agent Download PDFInfo
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- CN104789029B CN104789029B CN201510206198.3A CN201510206198A CN104789029B CN 104789029 B CN104789029 B CN 104789029B CN 201510206198 A CN201510206198 A CN 201510206198A CN 104789029 B CN104789029 B CN 104789029B
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- thickening
- bentonite
- water paint
- thickening agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/43—Thickening agents
Abstract
The invention discloses a kind of thickening agent for water paint thickening, is prepared from by following methods：By sodium bentonite under the conditions of 350 ~ 450 DEG C calcination 1h；Add in sulfuric acid solution of the mass fraction for 17 ~ 19% according to 2.10 ~ 2.30 solid-liquid mass ratios and 30min is acidified under the conditions of 95 ~ 100 DEG C, flocculate, slagging-off is filtered, clean spent acid, drying；Bentonite after acidifying is placed in ball mill 4h is ground under the ul-trasonic irradiation of 40KHz；400 mesh sieves are crossed, thickening agent is obtained.The thickening agent of the present invention can be applicable to the thickening of water paint.
Description
Technical field
The invention belongs to chemical field, is related to a kind of thickening agent, more specifically, the present invention is a kind of for building for preparing
The thickening agent of thickening power is played during water paint.
Background technology
Modern architecture, construction, house ornamentation all be unable to do without coating, paint.The use of coating is not exclusively decorated, can also be effectively
Protect the substrate material, extend the service life of building, equipment etc..Water paint is a class low stain, saves the energy, resource-saving
Coating.With the reinforcement of people's environmental consciousness, water paint is increasingly subject to the attention of people, and Related product is widely studied
And exploitation.
During production, storage, construction in water paint etc., addition thickening agent is needed to make coating in various shearing force bars
The viscosity having under part required by technique.Customary thickeners have：Inorganic thickening agent, modified cellulose, polyacrylate and association
The polyurethane thickener of type.Wherein inorganic thickening agent is mainly the clay mineral that montmorillonite class has well suspended.Montmorillonite
The characteristic being had makes which have the several functions such as bonding, thickening, suspension, dispersion, emulsifying, filling in coating, can improve painting
The brushability and levelability of material, improves the resistance to water of coating.Montmorillonite is applied in coatings industry widely, can be used as coating
Thickening agent, suspension sagging inhibitor, additional adhesive etc..
Advantage of the montmorillonite as water paint thickening agent be：Good suspension；It is good with Miscibility, wider
It is applicable under the conditions of general pH；Price is relatively low；Have the disadvantage：Consumption is big compared with organic thickening agent, and suspension, thickening properties are with other
The thickening agent of type is compared poor.
The content of the invention
It is an object of the invention to provide a kind of water paint thickening thickening agent.
To achieve these goals, the present invention is employed the following technical solutions：
A kind of water paint thickening thickening agent, it is characterised in that be prepared from by following methods：
（1）By sodium bentonite under the conditions of 350 ~ 450 DEG C calcination 1h；
（2）Configuration quality fraction is 17 ~ 19% sulfuric acid solution, adds step（1）The bentonite of acquisition, bentonite and sulfur
The solid-liquid mass ratio of acid solution is 2.10 ~ 2.30:30min is stirred under the conditions of 1,95 ~ 100 DEG C carries out acidification reaction, flocculates, removes
Slag, filters；
（3）By step（2）The material of acquisition is introduced in standing groove, adds washings, is stirred 1～2 minute, and time of repose is
45min, extracts the supernatant, and cyclic washing 4～9 times is 4～5 to clear liquid pH value, filters, drying；
（4）By step（3）The bentonite of acquisition is put in ball mill, and 4h, mistake are ground under the ul-trasonic irradiation of 40KHz
200 mesh sieves, obtain water paint thickening thickening agent.
Further, step（1）Described calcination temperature is 380 DEG C.
Step（3）The quality of the washings is step（2）6 times of obtained quality of material.
The present invention first by sodium bentonite calcination, increased bentonitic bedding void, using sodium bentonite sun from
Sub- commutativity, by sulfuric acid activated, by the H of mineral acid+Na between displacement bentonite bed+, the space of structure cell is increased, is expanded
Cavity, dredged cavity, increased specific surface area, enhanced surface activity, increased ion exchange property so that acidifying
Bentonite possesses generation Inter layer adsorption, bonding and adsorbs the properties such as electronic action, meanwhile, reach the bentonitic purpose of purification.It is logical
Ultrasonic grinding is crossed, bentonitic specific surface area and electronegativity is further improved, so that bentonite is improved for hydroxyl and carboxyl
The good affinity of isopolarity group.Water paint thickening thickening agent of the present invention is during water paint for building is prepared
Good thickening effect can be played.
The concrete steps of said method are further described below：
1. calcination bentonite.Sodium bentonite is carried out calcination at a certain temperature, removes a part of interlayer in bentonite
Water and water is combined, increase bentonite bedding void so as to loose.Temperature is suitable, it is ensured that removes intermediary water and combines water, and not
Can be too high and bentonite is sintered.Suitable temperature is 350 ~ 450 DEG C, preferably 380 DEG C.
2. acid activation.The sulfuric acid solution of configuration certain mass fraction, adds step by certain solid-liquid mass ratio（1）Obtain
Bentonite, under the conditions of 95 ~ 100 DEG C stir 30min carry out acidification reaction, flocculate, slagging-off, filter.The quality of sulfuric acid solution point
Number is 17 ~ 19%, and bentonite is 2.10 ~ 2.30 with the solid-liquid mass ratio of sulfuric acid solution.
3. spent acid is cleaned.The material that step 2 is obtained is introduced in standing groove, a certain amount of water is added, is stirred 1～2 minute,
Time of repose is 45min, extracts the supernatant, and cyclic washing to clear liquid pH value is 4～5, is filtered, drying.The quality of washings
6 times of quality of material are obtained by step 2.
4. ultrasonic grinding.The bentonite that step 3 is obtained is put in ball mill, is ground under the ul-trasonic irradiation of 40KHz
Mill 4h.
5. the material obtained by step 4 is crossed into 400 mesh sieves, obtain water paint thickening thickening agent.
Obtained water paint thickening thickening agent is risen in can be applicable to prepare water paint for building according to the method described above
To good thickening power.
Specific embodiment
Embodiment 1
1050kg sodium bentonites are taken, the calcination 1h at 350 DEG C.
Configuration 500kg mass fractions are 17% sulfuric acid solution, and 30min is stirred under the conditions of 95 DEG C carries out acid activation disposal.
Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 2
1070kg sodium bentonites are taken, the calcination 1h at 370 DEG C.
Configuration 500kg mass fractions are 17.4% sulfuric acid solution, and 30min is stirred under the conditions of 96 DEG C to be carried out at acid activation
Put.Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 3
1090kg sodium bentonites are taken, the calcination 1h at 390 DEG C.
Configuration 500kg mass fractions are 17.8% sulfuric acid solution, and 30min is stirred under the conditions of 97 DEG C to be carried out at acid activation
Put.Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 4
1110kg sodium bentonites are taken, the calcination 1h at 410 DEG C.
Configuration 500kg mass fractions are 18.2% sulfuric acid solution, and 30min is stirred under the conditions of 98 DEG C to be carried out at acid activation
Put.Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 5
1130kg sodium bentonites are taken, the calcination 1h at 430 DEG C.
Configuration 500kg mass fractions are 18.6% sulfuric acid solution, and 30min is stirred under the conditions of 99 DEG C to be carried out at acid activation
Put.Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 6
1150kg sodium bentonites are taken, the calcination 1h at 450 DEG C.
Configuration 500kg mass fractions are 19% sulfuric acid solution, and 30min is stirred under the conditions of 100 DEG C to be carried out at acid activation
Put.Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 7
1150kg sodium bentonites are taken, the calcination 1h at 380 DEG C.
Configuration 500kg mass fractions are 17% sulfuric acid solution, and 30min is stirred under the conditions of 95 DEG C carries out acid activation disposal.
Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Embodiment 8
1050kg sodium bentonites are taken, the calcination 1h at 380 DEG C.
Configuration 500kg mass fractions are 19% sulfuric acid solution, and 30min is stirred under the conditions of 95 DEG C carries out acid activation disposal.
Flocculation, slagging-off are filtered.
6 times by quality of material is obtained add a certain amount of water to clean spent acid, stir 60s, stand 45min, extract upper strata out
Clear liquid, it is 4 ~ 5 to be cleaned to supernatant pH value repeatedly.Filter, drying.
Bentonite after drying is put in ball mill, 4h is ground under the ul-trasonic irradiation of 40KHz, prepare ultra-fine swelling
Soil, crosses 400 mesh sieves, obtains water paint thickening thickening agent.
Application effect of the product of the present invention in water paint for building is prepared see the table below：
| Whiteness | Colloid index（mL/15g） | Ion exchange capacity（me/g） | Expansion multiple | |
| Embodiment 1 | 80.21 | 91.54 | 85.37 | 21.43 |
| Embodiment 2 | 80.98 | 92.76 | 85.75 | 21.72 |
| Embodiment 3 | 81.23 | 92.49 | 86.74 | 22.39 |
| Embodiment 4 | 81.64 | 93.75 | 87.08 | 22.52 |
| Embodiment 5 | 82.65 | 94.26 | 87.68 | 23.98 |
| Embodiment 6 | 82.41 | 94.68 | 88.52 | 23.63 |
| Embodiment 7 | 84.26 | 95.07 | 87.21 | 24.53 |
| Embodiment 8 | 84.54 | 93.57 | 87.58 | 23.57 |
Water paint thickening thickening agent of the present invention can play good during water paint for building is prepared
Thickening effect.
Claims (1)
1. a kind of preparation method of water paint thickening thickening agent, it is characterised in that comprise the following steps：
（1）By sodium bentonite under the conditions of 380 DEG C calcination 1h；
（2）Configuration quality fraction is 17 ~ 19% sulfuric acid solution, adds step（1）The bentonite of acquisition, bentonite are molten with sulphuric acid
The solid-liquid mass ratio of liquid is 2.10 ~ 2.30:30min is stirred under the conditions of 1,95 ~ 100 DEG C carries out acidification reaction, flocculates, slagging-off,
Filter；
（3）By step（2）The material of acquisition is introduced in standing groove, adds washings, and the quality of washings is step（2）Obtained
6 times of quality of material, stir 1～2 minute, and time of repose is 45min, extracts the supernatant, cyclic washing 4～9 times, to clear liquid
PH value is 4～5, is filtered, drying；
（4）By step（3）The bentonite of acquisition is put in ball mill, and 4h is ground under the ul-trasonic irradiation of 40KHz, crosses 200 mesh
Sieve, obtains water paint thickening thickening agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206198.3A CN104789029B (en) | 2015-04-28 | 2015-04-28 | A kind of water paint thickening thickening agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206198.3A CN104789029B (en) | 2015-04-28 | 2015-04-28 | A kind of water paint thickening thickening agent |
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| Publication Number | Publication Date |
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| CN104789029A CN104789029A (en) | 2015-07-22 |
| CN104789029B true CN104789029B (en) | 2017-04-05 |
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| CN106180538A (en) * | 2016-08-26 | 2016-12-07 | 蚌埠市北晨微型机床厂 | A kind of core material with high thermal conductivity energy |
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| CN101182002A (en) * | 2007-10-26 | 2008-05-21 | 江苏工业学院 | Method for synthesizing organic bentonite by ultrasonic wave combined with microwave |
| CN101362073B (en) * | 2008-09-27 | 2010-10-13 | 山东大学 | Preparation method of acidification sludge bentonite granules |
| CN101805459A (en) * | 2010-05-05 | 2010-08-18 | 苏州兰特纳米材料科技有限公司 | Nano bentonite for plastic modification and preparation method thereof |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of thickener for thickening water-based paint Effective date of registration: 20220829 Granted publication date: 20170405 Pledgee: Zhangjiakou Bank Co.,Ltd. Yangyuan County Sub branch Pledgor: YANGYUAN COUNTY RENHENG FINE CLAY Co.,Ltd. Registration number: Y2022980013890 |
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