CN105949506B - An a kind of one step preparation method of hydrophobic Yi Meng clays - Google Patents

An a kind of one step preparation method of hydrophobic Yi Meng clays Download PDF

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Publication number
CN105949506B
CN105949506B CN201610299050.3A CN201610299050A CN105949506B CN 105949506 B CN105949506 B CN 105949506B CN 201610299050 A CN201610299050 A CN 201610299050A CN 105949506 B CN105949506 B CN 105949506B
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China
Prior art keywords
hydrophobic
meng
modifying agent
step preparation
meng clays
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Expired - Fee Related
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CN201610299050.3A
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Chinese (zh)
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CN105949506A (en
Inventor
贾梦秋
冉晶
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Beijing University of Chemical Technology
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Beijing University of Chemical Technology
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Priority to CN201610299050.3A priority Critical patent/CN105949506B/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/346Clay
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/04Ingredients treated with organic substances
    • C08K9/06Ingredients treated with organic substances with silicon-containing compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40Compounds of aluminium
    • C09C1/42Clays
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12Treatment with organosilicon compounds

Abstract

An a kind of one step preparation method of hydrophobic Yi Meng clays, belongs to Yi Meng clay production technical fields.Comprise the following steps:Modifying agent is added in alcohol solution first, stirring adds Yi Meng clay powders after being completely dispersed uniformly, and slurries are obtained in 60~80 DEG C of reactions;Then the above-mentioned slurries by step are filtered, the drying grinding of obtained filter cake is can obtain into hydrophobic Yi Meng clays powder.The powder obtained by the present invention has more preferable hydrophobic performance and hydrophobic performance is stable, has good compatibility with organic matter, can be dispersed in the polymer.Preparation method technique provided by the invention is simple, and cost is cheap, and preparation efficiency is high.

Description

An a kind of one step preparation method of hydrophobic Yi Meng clays
Technical field:
The present invention relates to Yi Meng clay production technical fields, and in particular to a kind of preparation method of hydrophobic Yi Meng clays
Background technology:
Natural Iraq/Mongolia mixed layer clay mineral be aqueous phyllosilicate, is a kind of by montmorillonite lamella and illite lamella The transiens mineral formed by different proportion along C axles, its basic structural feature are silicon-oxy tetrahedron lamella and aluminum oxide octahedral sheet Layer infinitely extends on a, b direction of structure cell, and rule repeats, piece and piece composition structural unit layer, in the c-direction without translation week Phase.Because the lattice position of some silicon atoms is occupied by the iron and aluminium of some low price, thus cause lamella negatively charged, interlayer by The metal cations such as calcium ion, sodium ion balance the uncharged group such as negative electricity, also a number of hydroxyl.Wherein interlayer sun Ion can swap with some other groups, and with organic matters such as coupling agents dehydrating condensation can occur for hydroxyl.
Due to the lamellar structure and fire resistance of clay, the barrier property of polymer can be improved by being applied in polymer And fire resistance.But natural Iraq/Mongolia mixed layer clay mineral good hydrophilic property, water-swellable, it is difficult in organic system compatible.Cause This in use, must be modified to natural Yi Meng clays, makes its surface switch to hydrophobic, Neng Gouyu by hydrophilic in organic system Polymer-compatible.
Existing organoclay method is usually to carry out cation exchange, cation exchange using cationic surfactant Method be generally modified in pure water, can produce a large amount of bubbles, reduce products collection efficiency and simultaneously made troubles to production, and this Method only slightly reduces the hydrophily of clay minerals, not only not up to hydrophobicity (water contact angle be more than 90 °), and with Time elapses, and contact angle also occurs that further decline.Therefore the organic clay obtained in general using this method can not be with Polymer combines well, and its organic compatibility needs further to be improved.
The content of the invention:
It is an object of the invention to solve problems of the prior art, there is provided a kind of Yi Meng with hydrophobic effect glues One one step preparation method of soil, its step are as follows:
Modifying agent is added in alcohol solution, stirring adds Yi Meng clay powders after being completely dispersed uniformly, at 60~80 DEG C Reaction obtains slurries;Slurries are filtered, the drying grinding of obtained filter cake is obtained into hydrophobic Yi Meng clays powder.
In such scheme, modifying agent used is oxyalkylsiloxane, preferably is selected from DOW CORNING Z6173 or DOW CORNING 11-100 Any one.
Preferably, the volume ratio of ethanol and water used in the alcohol solution of preparation is (1~3):1.
In any of the above-described scheme preferably, the time of reaction is 1~4 hour.
In any of the above-described scheme, modifier concentration is to correspond to 0.05-0.3g modifying agent, preferred pair per 10ml alcohol solutions Answer 0.1~0.2g modifying agent.
In any of the above-described scheme preferably, modifying agent add quality for Yi Meng clay powder qualities 16%~ 50%.
In any of the above-described scheme preferably, modifying agent add quality for Yi Meng clay powder qualities 17%~ 30%.
In any of the above-described scheme preferably, modifying agent add quality for Yi Meng clay powder qualities 17%~ 25%.
In any of the above-described scheme preferably, modifying agent add quality for Yi Meng clay powder qualities 17%~ 20%.
In any of the above-described scheme preferably, modifying agent add quality for Yi Meng clay powder qualities 18%~ 19%.
In any of the above-described scheme preferably, ultrasonic vibration can also be carried out after clay stirring is added.
In any of the above-described scheme preferably, the time for ultrasonic vibration being carried out after clay stirring is added is 5~20 points Clock.
In any of the above-described scheme preferably, can be washed with deionized during filtering.
In any of the above-described scheme preferably, drying temperature is 70~120 DEG C.
In any of the above-described scheme preferably, drying temperature is 80~110 DEG C.
Beneficial effect:
1 can fully confirm that obtained hydrophobic Yi Meng clays have moderately good hydrophobic effect by Fig. 1 Fig. 2.
The 2 hydrophobic Yi Meng clays being prepared by the method for the present invention have excellent organic compatibility, can be dispersed in poly- Composite is formed in compound, strengthens the barrier property and fire resistance of composite.
3 preparation methods are simple, avoid caused a large amount of foams, low for equipment requirements and yield in preparation process high.
Brief description of the drawings
Contact angle photo before Yi Meng clay alterations in Fig. 1 present invention;Powder water-swellable in Fig. 1, contact angle are 0 °
Fig. 2 is that contact angle photo, middle water droplet keep the form in photo after Yi Meng clay alterations in the present invention, and contact angle is 108°。
Fig. 3 is infrared spectrogram, wherein 2962cm before and after Yi Meng clay alterations in the present invention-1The absworption peak at place is that-CH is anti- Symmetrical stretching vibration absworption peak.And-CH is organo-functional group, therefore this functional group is not present on unmodified Yi Meng clays.In addition 3400cm-1Neighbouring peak is the-OH stretching vibration peaks of physical absorption water, and the peak is decreased obviously in modified infrared spectrogram.
Embodiment:
Further specific descriptions are done to the present invention with reference to embodiments, but are not limited to these embodiments.
Modifying agent used in embodiment use is bought from Daukangnin GmbH.
Embodiment 1
It is 1 that 1g DOW CORNINGs Z6173 is added into 90ml alcohol water ratio at room temperature:In 1 solution, stir to DOW CORNING Z6173 It is dispersed in solution.Then 5g Yi Meng clays are added in above-mentioned solution, be uniformly mixed.Slurries will be obtained to be transferred to Three-necked flask, 70 DEG C of water-baths 2 hours, filtration washing, 80 DEG C of drying and grindings obtain hydrophobic Yi Meng clays powder, measure it and connect Feeler is 93 °, and measures in 1 hour and do not decline.
Embodiment 2
It is 2 that 0.9g DOW CORNINGs Z6173 is added into 90ml alcohol water ratio at room temperature:In 1 solution, stir to DOW CORNING Z6173 is dispersed in solution.Then 5g Yi Meng clays are added in above-mentioned solution, be uniformly mixed.Slurries will be obtained It is transferred to three-necked flask, 70 DEG C of water-baths 2 hours, filtration washing, 110 DEG C of drying and grindings obtain hydrophobic Yi Meng clays powder, Its contact angle is measured as 106 °, and measures in 1 hour and does not decline.
Embodiment 3
It is 1 that 1g DOW CORNINGs Z6173 is added into 90ml alcohol water ratio at room temperature:In 1 solution, stir to DOW CORNING Z6173 It is dispersed in solution.Then 5g Yi Meng clays are added in above-mentioned solution, be uniformly mixed, and ultrasonic disperse 10 divides Clock.Slurries will be obtained and be transferred to three-necked flask, 70 DEG C of water-baths 2 hours, filtration washing, 80 DEG C of drying and grindings obtain it is hydrophobic she Clay powder is covered, measures its contact angle as 95 °, and measure in 1 hour and do not decline.
Comparative example 1
It is 2 that 0.5g cetyl trimethylammonium bromides are added into 90ml alcohol water ratio at room temperature:In 1 solution, stirring is extremely Cetyl trimethylammonium bromide is completely dissolved.5g Yi Meng clays are added in above-mentioned solution, are uniformly mixed.It will be starched Liquid is transferred to three-necked flask, and 60 DEG C of water-baths 2 hours, filtration washing drying and grinding obtains final powder.Measure its contact angle For 51.2 °, 0 ° was dropped in 10 minutes.
Comparative example 2
It is 1 that 0.2g DOW CORNINGs Z6173, which adds 90ml alcohol water ratio,:In 2 solution, stir to Z6173 and mix in the solution point Dissipate uniformly, 5g Yi Meng clays are added in solution, is uniformly mixed, is obtained slurries and be transferred to three-necked flask, 60 DEG C of water-baths are anti- Answer 2 hours, filtration drying grinds to obtain final powder, measures its contact angle as 23 °, and contact angle continuous decrease is extremely in 1 minute 0°。
Comparative example 3
It is 4 that 1g DOW CORNINGs Z6173 is added into 90ml alcohol water ratio at room temperature:In 1 solution, stir to DOW CORNING Z6173 It is dispersed in solution.Then 5g Yi Meng clays are added in above-mentioned solution, be uniformly mixed.Slurries will be obtained to be transferred to Three-necked flask, 50 DEG C of water-baths 2 hours, filtration washing, 110 DEG C of drying and grindings obtain hydrophobic Yi Meng clays powder, measure it Contact angle is 59 °, and contact angle continuous decrease is 0 ° in 5 minutes.
Heretofore described specific implementation case is only the preferable case study on implementation of the present invention, is not used for limiting this hair Bright practical range.The equivalent changes and modifications made according to the content of scope of the present invention patent, all should be used as the present invention Technology category.

Claims (9)

  1. A 1. a kind of one step preparation method of hydrophobic Yi Meng clays, it is characterised in that step is as follows:
    Modifying agent is added in alcohol solution, the volume ratio of ethanol and water used in the alcohol solution of preparation is (1~3):L, stir Mix and add Yi Meng clay powders after being completely dispersed uniformly, slurries are obtained in 60~80 DEG C of reactions;Slurries are filtered, will be obtained Filter cake drying grinding obtain hydrophobic Yi Meng clays powder;Modifying agent used is oxyalkylsiloxane.
  2. An a kind of 2. one step preparation method of hydrophobic Yi Meng clays according to claim 1, it is characterised in that modifying agent used For any one in DOW CORNING Z6173 or DOW CORNING 11-100.
  3. An a kind of 3. one step preparation method of hydrophobic Yi Meng clays according to claim 1, it is characterised in that the time of reaction For 1~4 hour.
  4. An a kind of 4. one step preparation method of hydrophobic Yi Meng clays according to claim 1, it is characterised in that modifier concentration 0.05-0.3g modifying agent is corresponded to for every 10ml alcohol solutions.
  5. An a kind of 5. one step preparation method of hydrophobic Yi Meng clays according to claim l, it is characterised in that modifier concentration For the corresponding 0.1~0.2g modifying agent of every 10ml alcohol solutions.
  6. A 6. one step preparation method of a kind of hydrophobic Yi Meng clays according to claim 1, it is characterised in that modifying agent adds Quality is the 16%~50% of Yi Meng clay powder qualities.
  7. A 7. one step preparation method of a kind of hydrophobic Yi Meng clays according to claim 1, it is characterised in that modifying agent adds Quality is the 17%~30% of Yi Meng clay powder qualities.
  8. A 8. one step preparation method of a kind of hydrophobic Yi Meng clays according to claim 1, it is characterised in that adding clay The time that ultrasonic vibration is carried out after stirring is 5~20 minutes.
  9. A 9. one step preparation method of a kind of hydrophobic Yi Meng clays according to claim 1, it is characterised in that drying temperature is 70~120 DEG C.
CN201610299050.3A 2016-05-06 2016-05-06 An a kind of one step preparation method of hydrophobic Yi Meng clays Expired - Fee Related CN105949506B (en)

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CN107227053A (en) * 2017-06-12 2017-10-03 广西大学 A kind of modified Yi Meng clays hydrophobic coating easy to clean and preparation method thereof
CN108611022B (en) * 2018-03-22 2021-02-02 杭州方周科技有限公司 Tire repair liquid containing illite smectite clay and preparation method thereof

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CN101254924A (en) * 2008-04-09 2008-09-03 中国科学院化学研究所 Silicane coupling agent surface grafted modified clay as well as preparation method and use thereof
CN101342482B (en) * 2008-08-15 2011-11-16 淮阴师范学院 Preparation method for concave-convex stick clay soil/polyacrylamide composite adsorption agent
CN101658782A (en) * 2009-08-24 2010-03-03 淮阴师范学院 Method for preparing adsorbent by modifying attapulgite clay
US20120082791A1 (en) * 2010-10-04 2012-04-05 Robert Richard Liversage Coating Composition Amenable to Elastomeric Substrates
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