CN103276625B - A kind of preparation method of calcium stearate aqueous dispersion solution - Google Patents

A kind of preparation method of calcium stearate aqueous dispersion solution Download PDF

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Publication number
CN103276625B
CN103276625B CN201310154992.9A CN201310154992A CN103276625B CN 103276625 B CN103276625 B CN 103276625B CN 201310154992 A CN201310154992 A CN 201310154992A CN 103276625 B CN103276625 B CN 103276625B
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calcium stearate
aqueous dispersion
dispersion solution
preparation
defoamer
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CN103276625A (en
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杜德光
葛巧谊
李明
李晋
张丽旭
徐郑兵
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Zhaoqing Zhili Automation Technology Co ltd
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Luoyang Hui Er Nanosecond Science And Technology Co Ltd
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  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
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Abstract

The preparation method of a kind of calcium stearate aqueous dispersion solution of disclosure, it comprises the following steps: measure water and emulsifying agent according to a certain ratio, in 20~40% addition reactors of dispersant and defoamer total amount, stirring stops stirring after being uniformly dispersed to emulsifying agent, add calcium stearate, then quickly stirring to calcium stearate completely wetted after, after reducing mixing speed continuation stirring 30~45min, add 60~80% and preservative of defoamer total amount, after carrying out superfine grinding 3~8min, screening is sieved by the ultrasonic activation of 1000~1500 orders, obtain the calcium stearate aqueous dispersion solution that granularity is 5~10 μm.Inventive formulation is simple, it is easy to operation, consuming time short, and product not skinning, homogeneous stable performance are good, the viscosity of calcium stearate solid content and final system within the specific limits adjustable, environmental friendliness, lubricant effect desirable.

Description

A kind of preparation method of calcium stearate aqueous dispersion solution
Technical field
The preparation method that the present invention relates to a kind of calcium stearate aqueous dispersion solution, this calcium stearate aqueous dispersion solution is mainly used as papermaking coating process assistant, plastic processing lubricant, textile water proof agent and paint flatting agent.
Background technology
Calcium stearate is widely used in paper making applying lubricating agent and polychloroethylene heat stabilizer field due to good lubricity, it is also possible to as flatting agent and waterproofing agent in coating material production.Along with plastics, coating, the developing rapidly of paper machine petroleum chemical industry, the demand of calcium stearate increases year by year, and market prospect is still expected.
Calcium stearate has water-insoluble matter, in order to increase its scattered uniformity and good mobility when using as lubricant, is generally made into aqueous liquid dispersion and uses.At present, the preparation method of calcium stearate aqueous dispersion solution is divided into following two.
One is one-step method, by calcium salt or calcium hydroxide, stearic acid, emulsifying agent and some other auxiliary agent through reaction one-step synthesis, product cut size obtained by the method is little, but reaction not easily reaches completely, additionally when long-term heating, the requirement of the additive such as dispersant, emulsifying agent is higher.The preparation method that Chinese patent application 201110076884.5 discloses a kind of non-ionic calcium stearate aqueous dispersion solution; it adds water, stearic acid, emulsifying agent A, emulsifying agent B, emulsion adjuvant, protecting colloid aqueous solution, defoamer, antibacterial, electrolytic salt according to a certain percentage in container; then 85 DEG C it are heated to; quick stirring and emulsifying; after constant temperature emulsifying 1 hour; reduce mixing speed again; it is slowly added to the basifier of certain proportional quantity; constant temperature stirs 3 hours; then it is quickly cooled to room temperature, namely obtains target product.The method at least needs the time of 5 hours, consuming time longer.
Another kind is two-step method, first prepares calcium stearate powder, then is distributed to uniformly in water under the effect of the auxiliary agents such as surfactant by calcium stearate powder, is finally ground.The method is simply easy, is that calcium stearate synthesis in the market adopts maximum methods;But, owing to calcium stearate has stronger hydrophobicity, when therefore preparing, there is the shortcoming that emulsifying dispersant consumption is big, relative cost is higher.
Therefore, ensureing that calcium stearate aqueous dispersion solution indices reaches under the requirement premise needed for production application, rational optimization of C/C composites, reduction cost are very important.
Summary of the invention
For solving the problems referred to above, the preparation method that it is an object of the invention to provide a kind of calcium stearate aqueous dispersion solution, its production technology is simple, consuming time short, reduce production cost, the performance of calcium stearate aqueous dispersion solution is improved significantly.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of preparation method of calcium stearate aqueous dispersion solution, it comprises the following steps: measure water and emulsifying agent according to a certain ratio, in 20~40% addition reactors of dispersant and defoamer total amount, stirring stops stirring after being uniformly dispersed to emulsifying agent, add calcium stearate, then quickly stirring to calcium stearate completely wetted after, after reducing mixing speed continuation stirring 30~45min, add 60~80% and preservative of defoamer total amount, after carrying out superfine grinding 3~8min, screening is sieved by the ultrasonic activation of 1000~1500 orders, obtain the calcium stearate aqueous dispersion solution that granularity is 5~10 μm;
Wherein, the weight/mass percentage composition of each component is respectively: water is 40~68%, and calcium stearate is 30~55%, and dispersant is 0.1~0.5%, and emulsifying agent is 1~4%, defoamer 0.1~0.5%, preservative 0.1~0.5%.
Said method prepares the calcium stearate aqueous dispersion solution of gained, and solid content is 30~55wt%, and particle size range is 5~10 μm, and range of viscosities is 106~234mPa.S.
Further, above-mentioned dispersant is the one or more combination in styrene-maleic anhydride copolymer, stearyl polyethenoxy ether, sodium tripolyphosphate, sodium pyrophosphate, PEG400, carbamide.
Further, above-mentioned emulsifying agent is the one or more combination in tween 80, polysorbate60, polyoxyethylenated alcohol sodium sulfate, Pluronic F68, fatty alcohol-polyoxyethylene ether, polyglycereol monolaurate, polyethylene glycol laurate.
Further, above-mentioned defoamer is the one or more combination in water-soluble silicon alkanes defoamer, modified polyether class defoamer, polyether-modified silicon defoaming agent.
Further, above-mentioned preservative is the one or more combination in isothiazolone, dichlorodimethylhydantoin, methyl parahydroxybenzoate, Bronopol.
Further, above-mentioned water is tap water or deionized water.
Further, in the preparation method of above-mentioned calcium stearate aqueous dispersion solution, water and emulsifying agent, dispersant and defoamer in a kettle., are uniformly dispersed to emulsifying agent with the stirring of the mixing speed of 1000~3000r/min.
Further, in the preparation method of above-mentioned calcium stearate aqueous dispersion solution, quickly stir to calcium stearate completely wetted with the mixing speed of 10000~15000r/min.
Further, in the preparation method of above-mentioned calcium stearate aqueous dispersion solution, stir 30~45min with the mixing speed of 5000~8000r/min.
Owing to adopting technical scheme as above, the present invention has following superiority:
The preparation method of calcium stearate aqueous dispersion solution of the present invention, its calcium stearate aqueous dispersion solution solid content prepared is 30~55wt%, and particle size range is 5~10 μm, and range of viscosities is 106~234mPa.S;When stirring and emulsifying agent makes it disperse in water, many foams can be produced, and calcium stearate has good steady bubble ability, therefore, a part of defoamer was added, it is possible to avoid the existence of a large amount of foam, it is possible to save the step of vacuum froth breaking before adding calcium stearate, thus saving cost, save the time;The method formula is simple, it is easy to operation, consuming time short, and product not skinning, homogeneous stable performance are good, the viscosity of calcium stearate solid content and final system within the specific limits adjustable, environmental friendliness, lubricant effect desirable.
Detailed description of the invention
The present invention can be described in further detail with reference to following example;But, following example are only illustration, the invention is not limited in these embodiments.
Embodiment 1
null33.63kg water is added in reactor、55g sodium tripolyphosphate、40g carbamide、750g fatty alcohol-polyoxyethylene ether、370g tween 80 and 40g polydimethylsiloxane defoamer,Stir to emulsifying agent to be completely dispersed after uniformly with the mechanical agitation speed of 1000r/min and stop stirring,Add 15kg calcium stearate powder,Then with the mixing speed of 10000r/min quickly stir to calcium stearate powder completely wetted after,Reduce mixing speed with after the mixing speed continuation stirring 30min of 5000r/min,Add 50g polydimethylsiloxane defoamer and 65g isothiazolone preservative,After carrying out superfine grinding 3min,Screening is sieved by the ultrasonic activation of 1000 orders,Obtaining viscosity is 120mPa S、Particle mean size is 5 μm、Solid content is the calcium stearate aqueous dispersion solution of 30wt%.
Embodiment 2
null28.458kg water is added in reactor、82g styrene-maleic anhydride copolymer、60g PEG400、1000g polyoxyethylenated alcohol sodium sulfate、200g polyethylene glycol laurate and 50g modified polyether class defoamer HT-610,Stir to emulsifying agent to be completely dispersed after uniformly with the mechanical agitation speed of 7000r/min and stop stirring,Add 20kg calcium stearate powder,Then with the mixing speed of 10000r/min quickly stir to calcium stearate powder completely wetted after,Reduce mixing speed with after the mixing speed continuation stirring 1h of 5000r/min,Add 80g polydimethylsiloxane defoamer and 70g dichlorodimethylhydantoin preservative,After carrying out superfine grinding 5min,Screening is sieved by the ultrasonic activation of 1000 orders,Obtaining viscosity is 150mPa S、Particle mean size is 8 μm、Solid content is the calcium stearate aqueous dispersion solution of 40wt%.
Embodiment 3
null23.095kg water is added in reactor、105g styrene-maleic anhydride copolymer、20g sodium tripolyphosphate、250g polyglycereol monolaurate、550g Pluronic F68、800g polyoxyethylenated alcohol sodium sulfate and 50g modified polyether class defoamer DMF-670,Stir to emulsifying agent to be completely dispersed after uniformly with the mechanical agitation speed of 7000r/min and stop stirring,Add 25kg calcium stearate powder,Then with the mixing speed of 12000r/min quickly stir to calcium stearate powder completely wetted after,Reduce mixing speed with after the mixing speed continuation stirring 90min of 4000r/min,Add 50g modified polyether class defoamer DMF-670 and 80g methyl parahydroxybenzoate preservative,After carrying out superfine grinding 3min,Screening is sieved by the ultrasonic activation of 1000 orders,Obtaining viscosity is 200mPa S、Particle mean size is 10 μm、Solid content is the calcium stearate aqueous dispersion solution of 50wt%.
In the preparation method of calcium stearate aqueous dispersion solution of the present invention, modified polyether class defoamer can also select the one or more combination in defoamer HT-606, defoamer G6 or polyoxypropylene oxygen ethylene polyol ethers.

Claims (7)

  1. null1. the preparation method of a calcium stearate aqueous dispersion solution,It is characterized in that: it comprises the following steps: measure water and emulsifying agent according to a certain ratio、In 20~40% addition reactors of dispersant and defoamer total amount,Emulsifying agent is tween 80、Polysorbate60、Polyoxyethylenated alcohol sodium sulfate、Pluronic F68、Fatty alcohol-polyoxyethylene ether、Polyglycereol monolaurate、One or more combination in polyethylene glycol laurate,Dispersant is styrene-maleic anhydride copolymer,Stirring stops stirring after being uniformly dispersed to emulsifying agent,Add calcium stearate,Then quickly stirring to calcium stearate completely wetted after,After reducing mixing speed continuation stirring 30~45min,Add 60~80% and preservative of defoamer total amount,After carrying out superfine grinding 3~8min,Screening is sieved by the ultrasonic activation of 1000~1500 orders,Obtaining granularity is 5~10 μm、Solid content is 30~55wt%、Range of viscosities is the calcium stearate aqueous dispersion solution of 106~234mPa.S;
    Wherein, the weight/mass percentage composition of each component is respectively: water is 40~68%, and calcium stearate is 30~55%, and dispersant is 0.1~0.5%, and emulsifying agent is 1~4%, defoamer 0.1~0.5%, preservative 0.1~0.5%.
  2. 2. the preparation method of calcium stearate aqueous dispersion solution according to claim 1, is characterized in that: its defoamer is the one or more combination in water-soluble silicon alkanes defoamer, modified polyether class defoamer, polyether-modified silicon defoaming agent.
  3. 3. the preparation method of calcium stearate aqueous dispersion solution according to claim 1, is characterized in that: its preservative is the one or more combination in isothiazolone, dichlorodimethylhydantoin, methyl parahydroxybenzoate, Bronopol.
  4. 4. the preparation method of calcium stearate aqueous dispersion solution according to claim 1, is characterized in that: its water is tap water or deionized water.
  5. 5. the preparation method of calcium stearate aqueous dispersion solution according to claim 1, is characterized in that: water and emulsifying agent, dispersant and defoamer in a kettle., are uniformly dispersed to emulsifying agent with the stirring of the mixing speed of 1000~3000r/min.
  6. 6. the preparation method of calcium stearate aqueous dispersion solution according to claim 1, is characterized in that: quickly stir to calcium stearate completely wetted with the mixing speed of 10000~15000r/min.
  7. 7. the preparation method of calcium stearate aqueous dispersion solution according to claim 1, is characterized in that: stir 30~45min with the mixing speed of 5000~8000r/min.
CN201310154992.9A 2013-04-28 2013-04-28 A kind of preparation method of calcium stearate aqueous dispersion solution Expired - Fee Related CN103276625B (en)

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CN104194904A (en) * 2014-04-18 2014-12-10 洛阳惠尔纳米科技有限公司 An aqueous lithium stearate dispersion liquid and a preparing method thereof
CN105621932B (en) * 2015-12-29 2018-06-08 福建建工建材科技开发有限公司 Chemical blowing foam concrete foam stabilizing reinforcing agent
CN107217538B (en) * 2017-07-17 2019-01-11 黄河三角洲京博化工研究院有限公司 A kind of water solubility calcium stearate dispersion and preparation method thereof
CN107825307A (en) * 2017-11-11 2018-03-23 淄博理研泰山涂附磨具有限公司 A kind of preparation method of anti-blocking environmentally friendly sand paper
CN108411698A (en) * 2018-03-08 2018-08-17 广东龙湖科技股份有限公司 The preparation method of water-based zinc stearate lotion, the product by this method acquisition and its application
CN109354917B (en) * 2018-10-11 2021-08-10 广州正浩新材料科技有限公司 Water-based calcium stearate emulsion and preparation method thereof
CN109880430A (en) * 2019-01-28 2019-06-14 洛阳烨方新材料科技有限公司 It is a kind of for coating or the Stearyl Amine colloid of flocking technique and preparation method thereof
CN110878489A (en) * 2019-12-04 2020-03-13 新沂市星辰新材料科技有限公司 Stable water-based calcium stearate dispersion liquid and preparation method thereof

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CN102102312A (en) * 2010-11-13 2011-06-22 东莞市汉维新材料科技有限公司 Water-based zinc stearate dispersion liquid and preparation method thereof
CN102121210A (en) * 2010-12-27 2011-07-13 东莞市汉维新材料科技有限公司 Calcium stearate aqueous dispersion solution and preparation method thereof
CN102828440A (en) * 2012-08-24 2012-12-19 浙江和新科技有限公司 Calcium stearate dispersing liquid for papermaking and preparation method thereof
CN103057005A (en) * 2012-12-20 2013-04-24 河南惠尔纳米科技有限公司 Stearic acid water-based dispersion and preparation method thereof

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CN102121210A (en) * 2010-12-27 2011-07-13 东莞市汉维新材料科技有限公司 Calcium stearate aqueous dispersion solution and preparation method thereof
CN102828440A (en) * 2012-08-24 2012-12-19 浙江和新科技有限公司 Calcium stearate dispersing liquid for papermaking and preparation method thereof
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