CN108676305A - A kind of preparation method of water-fast re-dispersible glue powder - Google Patents
A kind of preparation method of water-fast re-dispersible glue powder Download PDFInfo
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Abstract
The invention discloses a kind of preparation methods of water-fast re-dispersible glue powder, belong to polymer dry powder mortar industry preparing technical field for building.The inorganic filler of re-dispersible glue powder is using cement as hydraulic binder material in the present invention, by forming loose sintering feed sorptivety enhanced water resistance polyacrylate after cement and the sintering of all kinds of mountain flours, prepared lemon is a kind of hydrophobic surfactant of compounding with soybean squeezing gained emulsion mixture, the present invention extracts filtrate from soya bean, due to containing a small amount of lecithin in filtrate, it can be used as emulsifier, to introduce vinyl into polymer, realize cross-linked polymeric to improve the stability of polyacrylate, and lecithin belongs to nonionic emulsifier, chemical stability is high, the polyacrylate dispersion particle very little synthesized under the conditions of technical scheme of the present invention is close to nanoscale, hydrone is difficult to spread into gap between emulsion particle and form water pocket, the adhesive property of pressure sensitive adhesive is obtained for raising with water resistance.
Description
Technical field
The invention discloses a kind of preparation methods of water-fast re-dispersible glue powder, belong to polymer dry powder mortar row for building
Industry preparing technical field.
Background technology
Redispersable latex powder product is water-soluble redispersible powder, is divided into copolymer, the vinegar of ethylene/vinyl acetate
Sour ethylene/versatic acid ethylene copolymer, acrylic copolymer etc., manufactured powder adhesive after spray drying, with polyvinyl alcohol
As protecting colloid.This powder after contact with water can redisperse is at lotion quickly, since redispersable latex powder has
High cementitiousness and unique performance, such as：Water-resistance, application property and thermal insulation etc., therefore, their application range are extremely wide
General.
The research of re-dispersible glue powder starts from the polyvinyl acetate of German I.G.Farbenindus AC companies in 1934
The powder latex of class redispersable latex powder and Japan.The later stage fifties in last century, German Hirst company and wacker chemicals
Company starts the industrialized production of redispersable latex powder.At that time, redispersable latex powder was also mainly polyvinylacetate type,
It is mainly used for carpenter's glue, metope priming paint and cement system wall material etc..But since the minimum film formation temperature of PVAc rubber powders is high, water resistance
The limitation of the performances such as difference, alkali resistance difference is used and is limited by larger.With the work of the lotions such as VAE lotions and VA/VeoVa
Industry is melted into work(, the last century 60's, and minimum film formation temperature is 0 DEG C, the redispersible breast with preferable water resistance and alkali resistance
Rubber powder is developed, and later, is applied and is widely promoted in Europe, the range used also gradually expands to various structures
With non-structural building adhesive, dry-mixed mortar modification, wall thermal insulating and finishing systems, wall levelling glue and sealing emplaster, powder
The field of coating, building putties.
It is counted according to relevant expert, 2003,190,000 tons of redispersable latex powder whole world yield, mainly in European and North America
Area uses, and the consumption figure of Chinese market is less than 5000 tons, and 2007, and Chinese redispersable latex powder apparent consumption is up to 4
~5 ten thousand tons, mainly for answering producer to be Germany watt gram, Foochow four directions, national of the United States's starch, precious occasion chemistry, Beijing name Ang Rui is auspicious, mountain
Western three-dimensional, Shandong U.S. is triumphant, predicts 2010, the demand of domestic redispersable latex powder is up to 100,000 tons.
Redispersable latex powder at present, dispersibility are poor, it is impossible to be used in prepare dry powder-shaped building coating, and only build
The additives such as putty use, redisperse liquid at film poor water resistance, polymer powder meets water redisperse into lotion and drying and forming-film
Afterwards, due to the presence of wherein Water soluble protective colloids, then while meeting water, still can keep film coated surface coarse by dissolution phenomena again.
Therefore, a kind of water-fast re-dispersible glue powder of invention has actively meaning to polymer dry powder mortar industry preparing technical field for building
Justice.
Invention content
Present invention mainly solves the technical issues of, it is poor for current redispersable latex powder dispersion effect, it is impossible to be used in system
Standby dry powder-shaped building coating, and the only additives such as building putties use, redisperse liquid at film poor water resistance, polymer powder
Water redisperse is met at after lotion and drying and forming-film, due to the presence of wherein Water soluble protective colloids, then while meeting water still can be by again
Secondary dissolution phenomena makes the defect that film coated surface is coarse, provides a kind of preparation method of water-fast re-dispersible glue powder
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of preparation method of water-fast re-dispersible glue powder, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, weighs 50~60 parts of butyl acrylates, 15~20 parts of hydroxyethyl methacrylates, 30~40 parts
Styrene is placed in beaker, and 15~20min of stirring obtains mix monomer, takes soya bean to be placed in mortar and smash to pieces, the mixture that will be smashed to pieces
Filtrate is collected with being separated by filtration after soaked in absolute ethyl alcohol, 20~25 parts of filtrates and 90~100 parts of deionized waters are taken, in stirring
Under, the mix monomer in beaker is poured into conical flask, is dispersed with stirring, monomer pre-emulsion is obtained, it is spare；
（2）It counts in parts by weight, 4~5 parts of filtrates and 40~50 parts of deionized waters is separately taken to be added in four-hole boiling flask as reaction bottom
Liquid is counted in parts by weight, takes 4.5~5.0 parts of ammonium persulfates, is dissolved in 25~30 parts of deionized waters, is obtained initiator solution；
（3）Above-mentioned four-hole boiling flask is moved into water-bath, the initiator of 1/10th monomer pre-emulsion and one third is added
Solution is stirred to react, and after blue phase occurs in reaction, residual monomer is instilled four-hole boiling flask, remaining initiation is added after being added dropwise
Agent solution, and temperature is increased, room temperature is cooled to after insulation reaction, discharging obtains enhanced water resistance polyacrylate；
（4）It takes 1.0~1.5kg niblets to be fitted into ceramic cylinder, then 4~5L distilled water is added into ceramic cylinder, then to distilled water
In be passed through 80~100mL sulfur dioxide, heat temperature raising seals ceramic cylinder, is standing and soak for the niblet disc type after being impregnated
Niblet after immersion is ground 20~30min by grater, and sieving obtains corn flour, takes 600~800g lemons, 400~500g
Soybean, squeezing lemon and soybean by squeezer, then being dispersed with stirring 1~2h obtains mixed liquor；
（5）It counts in parts by weight, 20~30 parts of above-mentioned corn powder, 30~40 parts of above-mentioned mixing is added into high speed dispersor
Liquid, 20~30 parts of Portland cements, 25~30 parts of sierozem powers, 8~10 parts of talcum powder, 50~55 parts of pulverized limestones, high speed point
It dissipates, obtains wet feed；
（6）Wet feed is placed in and sets drying in baking oven, obtains siccative, obtained siccative is moved into high temperature furnace and is sintered, is sintered
Sinter is placed in enhanced water resistance polyacrylate after impregnating 30~35min of sorptivety, is removed and placed in blast drier by object
It is dry, then crushed with high-pressure pulse nano-scale crusher, obtain water-fast re-dispersible glue powder.
Step（1）The soaked in absolute ethyl alcohol time is 2~3h, and speed of agitator is 200~300r/min, is dispersed with stirring
Time is 10~15min.
Step（3）The water-bath pot temperature is 80~85 DEG C, and dropping funel drop rate is 1~3mL/min, increases temperature
Degree is 160~170 DEG C, and the insulation reaction time is 20~30min.
Step（4）Temperature is 50~55 DEG C after the heat temperature raising, and it is 2~4 days to be standing and soak for the time, be sieved specification
For 200 mesh.
Step（5）The sierozem power grain size is 200~300 mesh, and talcum powder grain size is 300~400 mesh, and high speed dispersion turns
Speed is 3000~4000r/min, and the high speed dispersion time is 2~3h.
Step（6）The baking oven set temperature be 100~110 DEG C, drying time be 2~3h, sintering temperature be 800~
1000 DEG C, sintering time is 6~8h, and blast drier set temperature is 70~80 DEG C, and high-pressure pulse nano-scale crusher carries out powder
It is broken until powder particle size be 500~750nm.
The beneficial effects of the invention are as follows：
（1）The present invention adds soya bean filtrate, system with butyl acrylate, hydroxyethyl methacrylate, styrene as mix monomer
At monomer pre-emulsion, soya bean filtrate and ammonium persulfate are combined into initiator solution, are prepared by two-step method reaction high resistance to
Water polyacrylic acid by niblet distilled water sealed soak and is passed through sulfur dioxide gas, takes out the niblet after impregnating
It is ground up, sieved to obtain corn flour, then mixed liquor is prepared with lemon and soybean squeezing, by corn powder, mixed liquor, normal silicate
Cement, sierozem power, talcum powder, pulverized limestone mixing dispersion obtain wet feed, by drying, sorptivety enhanced water resistance poly- third after calcination activation
Olefin(e) acid ester, then forced air drying, high-voltage pulse crush to obtain water-fast re-dispersible glue powder, and re-dispersible glue powder is inorganic in the present invention
Filler is improved the adhesion strength and hardness after the solidification of rubber powder dispersion liquid, is passed through cement using cement as hydraulic binder material
Loose sintering feed sorptivety enhanced water resistance polyacrylate is formed after being sintered with all kinds of mountain flours, improves the water proofing property of vulcanized rubber powder,
Corn starch separate out after sulfiting, albumen and fiber separation, the corn flour of formation, which has rubber powder dispersion liquid, to be increased
Thick tackifying effect, and the active cation of cement and all kinds of mountain flours and anion in cornstarch rubber powder are total in rubber powder dispersion liquid
Same-action and gelatification occurs, reduce absorption to polar water molecules, it is advantageous to improving water resistance；
（2）The re-dispersible glue powder of the present invention is eventually fabricated close to nano-scale particle, and re-dispersible glue powder inter-granular porosity is smaller,
The thickness that can be constructed is thicker, is more conducive to the levelling of re-dispersible glue powder, and the phase between re-dispersible glue powder particle
Interaction is bigger, thus re-dispersible glue powder as building powder or coating additive in use, film coated surface can be reduced
Surface tension, make dry film appearance smooth planar after application, avoid the coarse problem of traditional film coated surface, it is prepared
Lemon and soybean squeezing gained emulsion mixture be a kind of hydrophobic surfactant of compounding, further improve redispersible
The water resistance of rubber powder, the present invention extract filtrate from soya bean, due to containing a small amount of lecithin in filtrate, can be used as emulsifier, lecithin
Fat surface energy is relatively low, has excellent hydrophobicity performance, and it can be combined into water-fast lipoprotein molecule with protein in corn flour
Layer is compatible with polyacrylate, can form hydrophobic layer in finally dry film surface, to improve the water resistance of latex film,
Contain styrene in main monomer when preparing enhanced water resistance polyacrylate, to introduce vinyl into polymer, realizes and hand over
Connection polymerization is to improve the stability of polyacrylate, and lecithin belongs to nonionic emulsifier, and chemical stability is high, in this hair
The polyacrylate dispersion particle very little synthesized under the conditions of bright technical solution is close to nanoscale, and particle diameter distribution is relatively narrow,
Hydrone is difficult to spread into gap between emulsion particle and form water pocket, and the adhesive property and water resistance of pressure sensitive adhesive all obtain
It improves.
Specific implementation mode
It counts in parts by weight, weighs 50~60 parts of butyl acrylates, 15~20 parts of hydroxyethyl methacrylates, 30~40 parts
Styrene is placed in beaker, and 15~20min of stirring obtains mix monomer, takes soya bean to be placed in mortar and smash to pieces, the mixture that will be smashed to pieces
Filtrate is collected with being separated by filtration after 2~3h of soaked in absolute ethyl alcohol, takes 20~25 parts of filtrates and 90~100 parts of deionized waters, is being turned
Speed is to pour into the mix monomer in beaker in conical flask under the stirring of 200~300r/min, it is dispersed with stirring 10~
15min obtains monomer pre-emulsion, spare；It counts in parts by weight, 4~5 parts of filtrates and 40~50 parts of deionized waters is separately taken to be added four
It is used as anti-bottom liquid in mouth flask, counts in parts by weight, takes 4.5~5.0 parts of ammonium persulfates, be dissolved in 25~30 parts of deionized waters
In, obtain initiator solution；Above-mentioned four-hole boiling flask is moved into 80~85 DEG C of water-bath, 1/10th pre- breast of monomer is added
The initiator solution of liquid and one third, is stirred to react, and after blue phase occurs in reaction, starts by drop rate to be 1~3mL/min
Residual monomer is instilled into four-hole boiling flask, remaining initiator solution is added after being added dropwise, and increases temperature to 160~170 DEG C, is protected
It is cooled to room temperature after 20~30min of temperature reaction, discharging obtains enhanced water resistance polyacrylate；1.0~1.5kg niblets are taken to be packed into
In ceramic cylinder, then 4~5L distilled water is added into ceramic cylinder, then is passed through 80~100mL sulfur dioxide into distilled water, heating rises
Temperature seals ceramic cylinder, is standing and soak for 2~4 days to 50~55 DEG C, after the niblet after being impregnated will be impregnated with burring mill
Niblet grind 20~30min, cross 200 mesh sieve, obtain corn flour, 600~800g lemons, 400~500g soybean is taken to pass through
Squeezer, which squeezes lemon and soybean and then is dispersed with stirring 1~2h, obtains mixed liquor；It counts, adds into high speed dispersor in parts by weight
Enter 20~30 parts of above-mentioned corn powder, 30~40 portions of above-mentioned mixed liquors, 20~30 parts of Portland cements, 25~30 part 200
Talcum powder, 50~55 parts of pulverized limestones of the sierozem power of~300 mesh, 8~10 part of 300~400 mesh turn in 3000~4000r/min
Lower 2~the 3h of high speed dispersion of speed, obtains wet feed；Wet feed is placed in dry 2~3h in the baking oven that set temperature is 100~110 DEG C, is obtained
To siccative, obtained siccative is moved into 800~1000 DEG C of high temperature furnace and be sintered 6~8h, obtained sinter, sinter is placed in
After impregnating 30~35min of sorptivety in enhanced water resistance polyacrylate, it is dry to be removed and placed in the air blast that set temperature is 70~80 DEG C
It is dry in dry machine, then crushed with high-pressure pulse nano-scale crusher until powder particle size is 500~750nm, obtain it is water-fast can
Redisperse rubber powder.
It counts in parts by weight, weighs 50 parts of butyl acrylates, 15 parts of hydroxyethyl methacrylates, 30 parts of styrene are placed in burning
Cup, stirring 15min obtain mix monomer, take soya bean to be placed in mortar and smash to pieces, by the mixture smashed to pieces soaked in absolute ethyl alcohol 2h
After be separated by filtration collect filtrate, take 20 parts of filtrates and 90 parts of deionized waters, rotating speed be 200r/min stirring under, will burn
Mix monomer in cup pours into conical flask, is dispersed with stirring 10min, obtains monomer pre-emulsion, spare；It counts in parts by weight, separately
It takes 4 parts of filtrates and 40 parts of deionized waters to be added in four-hole boiling flask and be used as anti-bottom liquid, counts in parts by weight, take 4.5 parts of ammonium persulfates,
It is dissolved in 25 parts of deionized waters, obtains initiator solution；Above-mentioned four-hole boiling flask is moved into 80 DEG C of water-bath, is added very
One of monomer pre-emulsion and one third initiator solution, be stirred to react, after reaction there is blue phase after, start by be added dropwise speed
Rate is that residual monomer is instilled four-hole boiling flask by 1mL/min, remaining initiator solution is added after being added dropwise, and increase temperature extremely
160 DEG C, room temperature is cooled to after insulation reaction 20min, discharging obtains enhanced water resistance polyacrylate；1.0kg niblets are taken to be packed into
In ceramic cylinder, then 4L distilled water is added into ceramic cylinder, then is passed through 80mL sulfur dioxide into distilled water, is heated to 50
DEG C, ceramic cylinder is sealed, is standing and soak for 2 days, the niblet after being impregnated is ground the niblet after immersion with burring mill
20min crosses 200 mesh sieve, obtains corn flour, and 600g lemons, 400g soybean is taken to squeeze lemon and soybean by squeezer and then stir
It mixes dispersion 1h and obtains mixed liquor；Count in parts by weight, be added into high speed dispersor 20 parts of above-mentioned corn powder, 30 parts it is above-mentioned mixed
Talcum powder, the 50 parts of pulverized limestones for closing liquid, 20 parts of Portland cements, the sierozem power of 25 part of 200 mesh, 8 part of 300 mesh,
High speed dispersion 2h, obtains wet feed under 3000r/min rotating speeds；Wet feed is placed in dry 2h in the baking oven that set temperature is 100 DEG C, is obtained
To siccative, obtained siccative is moved into 800 DEG C of high temperature furnace and be sintered 6h, obtained sinter, sinter is placed in enhanced water resistance
After impregnating sorptivety 30min in polyacrylate, be removed and placed in it is dry in the blast drier that set temperature is 70 DEG C, then with receiving
Rice high-voltage pulse pulverizer crush until powder particle size be 500nm, obtain water-fast re-dispersible glue powder.
It counts in parts by weight, weighs 55 parts of butyl acrylates, 17 parts of hydroxyethyl methacrylates, 35 parts of styrene are placed in burning
Cup, stirring 17min obtain mix monomer, take soya bean to be placed in mortar and smash to pieces, the mixture soaked in absolute ethyl alcohol that will be smashed to pieces
It is separated by filtration after 2.5h and collects filtrate, take 22 parts of filtrates and 95 parts of deionized waters, in the case where rotating speed is the stirring of 250r/min,
Mix monomer in beaker is poured into conical flask, 12min is dispersed with stirring, obtains monomer pre-emulsion, it is spare；In parts by weight
Meter separately takes 4 parts of filtrates and 45 parts of deionized waters to be added in four-hole boiling flask and be used as anti-bottom liquid, counts in parts by weight, take 4.7 parts of over cures
Sour ammonium is dissolved in 27 parts of deionized waters, obtains initiator solution；Above-mentioned four-hole boiling flask is moved into 82 DEG C of water-bath, is added
Enter 1/10th monomer pre-emulsion and the initiator solution of one third, be stirred to react, after reaction there is blue phase after, start by
Drop rate is that residual monomer is instilled four-hole boiling flask by 2mL/min, remaining initiator solution is added after being added dropwise, and increase temperature
Degree is cooled to room temperature to 165 DEG C after insulation reaction 25min, discharging obtains enhanced water resistance polyacrylate；Take 1.2kg niblets
It is fitted into ceramic cylinder, then 4L distilled water is added into ceramic cylinder, then be passed through 90mL sulfur dioxide into distilled water, be heated to
52 DEG C, ceramic cylinder is sealed, is standing and soak for 3 days, the niblet burring mill after being impregnated grinds the niblet after immersion
Broken 25min crosses 200 mesh sieve, obtains corn flour, and 700g lemons, 450g soybean is taken to squeeze lemon and soybean then by squeezer
It is dispersed with stirring 1.5h and obtains mixed liquor；It counts in parts by weight, 25 parts of above-mentioned corn powder is added into high speed dispersor, on 35 parts
Talcum powder, the 52 parts of pulverized limestones for stating mixed liquor, 25 parts of Portland cements, the sierozem power of 25 part of 250 mesh, 9 part of 350 mesh,
High speed dispersion 2.5h, obtains wet feed under 3500r/min rotating speeds；Wet feed is placed in dry in the baking oven that set temperature is 105 DEG C
2.5h obtains siccative, obtained siccative is moved into 900 DEG C of high temperature furnace and is sintered 7h, obtained sinter, sinter is placed in height
After impregnating sorptivety 32min in water resistance polyacrylate, it is removed and placed in drying in the blast drier that set temperature is 75 DEG C,
Again with high-pressure pulse nano-scale crusher crush until powder particle size be 650nm, obtain water-fast re-dispersible glue powder.
It counts in parts by weight, weighs 60 parts of butyl acrylates, 20 parts of hydroxyethyl methacrylates, 40 parts of styrene are placed in
Beaker, stirring 20min obtain mix monomer, take soya bean to be placed in mortar and smash to pieces, the mixture soaked in absolute ethyl alcohol that will be smashed to pieces
It is separated by filtration after 3h and collects filtrate, take 25 parts of filtrates and 100 parts of deionized waters, in the case where rotating speed is the stirring of 300r/min,
Mix monomer in beaker is poured into conical flask, 15min is dispersed with stirring, obtains monomer pre-emulsion, it is spare；In parts by weight
Meter separately takes 5 parts of filtrates and 50 parts of deionized waters to be added in four-hole boiling flask and be used as anti-bottom liquid, counts in parts by weight, take 5.0 parts of over cures
Sour ammonium is dissolved in 30 parts of deionized waters, obtains initiator solution；Above-mentioned four-hole boiling flask is moved into 85 DEG C of water-bath, is added
Enter 1/10th monomer pre-emulsion and the initiator solution of one third, be stirred to react, after reaction there is blue phase after, start by
Drop rate is that residual monomer is instilled four-hole boiling flask by 3mL/min, remaining initiator solution is added after being added dropwise, and increase temperature
Degree is cooled to room temperature to 170 DEG C after insulation reaction 30min, discharging obtains enhanced water resistance polyacrylate；Take 1.5kg niblets
It is fitted into ceramic cylinder, then 5L distilled water is added into ceramic cylinder, then be passed through 100mL sulfur dioxide, heat temperature raising into distilled water
To 55 DEG C, ceramic cylinder is sealed, is standing and soak for 4 days, the niblet burring mill after being impregnated is by the niblet after immersion
30min is ground, 200 mesh sieve is crossed, obtains corn flour, 800g lemons, 500g soybean is taken to squeeze lemon and soybean by squeezer
Then it is dispersed with stirring 2h and obtains mixed liquor；Count in parts by weight, into high speed dispersor be added 30 parts of above-mentioned corn powder, 40 parts
Talcum powder, the 55 parts of pulverized limestones of above-mentioned mixed liquor, 30 parts of Portland cements, the sierozem power of 30 part of 300 mesh, 10 part of 400 mesh,
High speed dispersion 3h, obtains wet feed under 4000r/min rotating speeds；Wet feed is placed in dry 3h in the baking oven that set temperature is 110 DEG C,
Siccative is obtained, obtained siccative is moved into 1000 DEG C of high temperature furnace and is sintered 8h, obtained sinter, sinter is placed in high water resistance
Property polyacrylate in after dipping sorptivety 35min, be removed and placed in dry in the blast drier that set temperature is 80 DEG C, then use
High-pressure pulse nano-scale crusher crush until powder particle size be 750nm, obtain water-fast re-dispersible glue powder.
The water-fast re-dispersible glue powder that comparative example is produced with Suzhou company is as a comparison case to produced by the present invention water-fast
Water-fast re-dispersible glue powder in re-dispersible glue powder and comparative example carries out performance detection, and testing result is as shown in table 1：
Test method：
Water resistance test：Tensile bond strength is detected by the method for JC/T993-2006, sample is conserved 14 days and taken out, waits in water
After its drying and forming-film, the dispersion effect of observation sample in water, and see whether to disperse again after drying.
Elongation percentage test is detected using extension rate test instrument.
Water absorption rate test is detected by JC/T2189-2013 standards.
1 re-dispersible glue powder energy measurement result of table
| Test event | Example 1 | Example 2 | Example 3 | Comparative example |
| Tensile bond strength（MPa） | 0.16 | 0.17 | 0.18 | 0.10 |
| Dispersion effect | It is uniformly dispersed | It is uniformly dispersed | It is uniformly dispersed | Disperse uneven |
| Whether disperse again | Do not disperse again, and smooth surface | Do not disperse again, and smooth surface | Do not disperse again, and smooth surface | Disperse again, rough surface |
| Elongation percentage（%） | 642 | 645 | 647 | 425 |
| Water absorption rate（%） | 24.8 | 24.5 | 24.2 | 45.6 |
High according to the water-fast re-dispersible glue powder tensile bond strength produced by the present invention of data among the above, this regeneration emulsion is dry
After dry film forming, no longer there is the characteristic disperseed again in water, water absorption rate is low, has excellent water resistance, has wide answer
Use foreground.
Claims (6)
1. a kind of preparation method of water-fast re-dispersible glue powder, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, weighs 50~60 parts of butyl acrylates, 15~20 parts of hydroxyethyl methacrylates, 30~40 parts
Styrene is placed in beaker, and 15~20min of stirring obtains mix monomer, takes soya bean to be placed in mortar and smash to pieces, the mixture that will be smashed to pieces
Filtrate is collected with being separated by filtration after soaked in absolute ethyl alcohol, 20~25 parts of filtrates and 90~100 parts of deionized waters are taken, in stirring
Under, the mix monomer in beaker is poured into conical flask, is dispersed with stirring, monomer pre-emulsion is obtained, it is spare；
（2）It counts in parts by weight, 4~5 parts of filtrates and 40~50 parts of deionized waters is separately taken to be added in four-hole boiling flask as reaction bottom
Liquid is counted in parts by weight, takes 4.5~5.0 parts of ammonium persulfates, is dissolved in 25~30 parts of deionized waters, is obtained initiator solution；
（3）Above-mentioned four-hole boiling flask is moved into water-bath, the initiator of 1/10th monomer pre-emulsion and one third is added
Solution is stirred to react, and after blue phase occurs in reaction, residual monomer is instilled four-hole boiling flask, remaining initiation is added after being added dropwise
Agent solution, and temperature is increased, room temperature is cooled to after insulation reaction, discharging obtains enhanced water resistance polyacrylate；
（4）It takes 1.0~1.5kg niblets to be fitted into ceramic cylinder, then 4~5L distilled water is added into ceramic cylinder, then to distilled water
In be passed through 80~100mL sulfur dioxide, heat temperature raising seals ceramic cylinder, is standing and soak for the niblet disc type after being impregnated
Niblet after immersion is ground 20~30min by grater, and sieving obtains corn flour, takes 600~800g lemons, 400~500g
Soybean, squeezing lemon and soybean by squeezer, then being dispersed with stirring 1~2h obtains mixed liquor；
（5）It counts in parts by weight, 20~30 parts of above-mentioned corn powder, 30~40 parts of above-mentioned mixing is added into high speed dispersor
Liquid, 20~30 parts of Portland cements, 25~30 parts of sierozem powers, 8~10 parts of talcum powder, 50~55 parts of pulverized limestones, high speed point
It dissipates, obtains wet feed；
（6）Wet feed is placed in and sets drying in baking oven, obtains siccative, obtained siccative is moved into high temperature furnace and is sintered, is sintered
Sinter is placed in enhanced water resistance polyacrylate after impregnating 30~35min of sorptivety, is removed and placed in blast drier by object
It is dry, then crushed with high-pressure pulse nano-scale crusher, obtain water-fast re-dispersible glue powder.
2. a kind of preparation method of water-fast re-dispersible glue powder according to claim 1, it is characterised in that：Step（1）Institute
The soaked in absolute ethyl alcohol time stated is 2~3h, and speed of agitator is 200~300r/min, and it is 10~15min to be dispersed with stirring the time.
3. a kind of preparation method of water-fast re-dispersible glue powder according to claim 1, it is characterised in that：Step（3）Institute
The water-bath pot temperature stated is 80~85 DEG C, and dropping funel drop rate is 1~3mL/min, and it is 160~170 DEG C to increase temperature, is protected
The warm reaction time is 20~30min.
4. a kind of preparation method of water-fast re-dispersible glue powder according to claim 1, it is characterised in that：Step（4）Institute
Temperature is 50~55 DEG C after the heat temperature raising stated, and it is 2~4 days to be standing and soak for the time, and be sieved specification is 200 mesh.
5. a kind of preparation method of water-fast re-dispersible glue powder according to claim 1, it is characterised in that：Step（5）Institute
The sierozem power grain size stated is 200~300 mesh, and talcum powder grain size is 300~400 mesh, and high speed dispersion rotating speed is 3000~4000r/
Min, high speed dispersion time are 2~3h.
6. a kind of preparation method of water-fast re-dispersible glue powder according to claim 1, it is characterised in that：Step（6）Institute
The baking oven set temperature stated is 100~110 DEG C, and drying time is 2~3h, and sintering temperature is 800~1000 DEG C, and sintering time is
6~8h, blast drier set temperature are 70~80 DEG C, and high-pressure pulse nano-scale crusher crushes until powder particle size is
500~750nm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109575844A (en) * | 2018-10-29 | 2019-04-05 | 许水仙 | A kind of preparation method viscosifying water-resistant white latex |
| CN110372917A (en) * | 2019-07-25 | 2019-10-25 | 天津科技大学 | A method of efficiently preparing starch-lipid complexes |
| CN110591609A (en) * | 2019-09-29 | 2019-12-20 | 陈炳均 | Preparation method of washable coating adhesive |
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| CN107383984A (en) * | 2017-08-30 | 2017-11-24 | 常州瑞坦商贸有限公司 | A kind of preparation method of indoor water-resistant powder of lacquer putty for use on |
| CN107459953A (en) * | 2017-07-31 | 2017-12-12 | 常州杰轩纺织科技有限公司 | A kind of preparation method of the polyacrylate pressure-sensitive of enhanced water resistance |
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| DE19962600A1 (en) * | 1999-12-23 | 2001-07-05 | Basf Ag | Protection device against the effects of water |
| CN107459953A (en) * | 2017-07-31 | 2017-12-12 | 常州杰轩纺织科技有限公司 | A kind of preparation method of the polyacrylate pressure-sensitive of enhanced water resistance |
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| CN109575844A (en) * | 2018-10-29 | 2019-04-05 | 许水仙 | A kind of preparation method viscosifying water-resistant white latex |
| CN110372917A (en) * | 2019-07-25 | 2019-10-25 | 天津科技大学 | A method of efficiently preparing starch-lipid complexes |
| CN110591609A (en) * | 2019-09-29 | 2019-12-20 | 陈炳均 | Preparation method of washable coating adhesive |
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