CN102432969A - Variable-color and high-effective composite humidity controlling agent and its preparation method - Google Patents
Variable-color and high-effective composite humidity controlling agent and its preparation method Download PDFInfo
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- CN102432969A CN102432969A CN2011102496309A CN201110249630A CN102432969A CN 102432969 A CN102432969 A CN 102432969A CN 2011102496309 A CN2011102496309 A CN 2011102496309A CN 201110249630 A CN201110249630 A CN 201110249630A CN 102432969 A CN102432969 A CN 102432969A
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Abstract
The invention discloses a variable-color and high-effective composite humidity controlling agent and its preparation method. The preparation method provided by the invention comprises the following steps of: using diatomite, sodium acrylate and acrylamide as raw materials to prepare a diatomite/poly(acrylic acid-acrylamide) composite humidity controlling material with high moisture capacity and humidity controlling capability by a reversed phase suspension polymerization method; immersing the composite humidity controlling material into a cobaltous chloride or gentian violet solution for absorption to saturation, separating, crushing, granulating, and drying to obtain a finished product. The scheme provided by the invention is used to overcome insufficiencies in the prior art and provide and prepare the humidity controlling agent which has high moisture capacity and humidity controlling capability. In addition, the moisture content of the humidity controlling agent can be reflected through appearance color variation, thus reaching the purpose of adjusting the humidity controlling capability of the humidity controlling agent by timely heating treatment and minimizing humidity fluctuation of cultural relic storage space to the greatest extent.
Description
Technical field
The present invention relates to a kind of humextant and preparation method thereof, specifically, relate to a kind of changeable colour, high-efficiency composite humidity controlling agent and preparation method thereof.
Background technology
The development of industries such as the lifting of Along with people's cultural heritage protection consciousness and museum, the Art Museum, Library, the preservation environment of improvement, control historical relic or article is to delay important step and the basic demand that historical relic wears out and damages, implements historical relic's protection.Influence the essential environmental factors of historical relic or article protect effect, temperature, humidity, illumination, atmospheric pollution and mikrobe etc. are arranged.Wherein except that temperature, humidity is the most basic influence factor.Generally speaking; The relative humidity requirement of historical relic being preserved environment is 40%～60%RH; And need reduce the fluctuation up and down of humidity (Luo Xiyun, Wu Laiming, Zhang Wenqing, Xia Wei, Cao Jia are cold, and cultural relics in the collection of cultural institution is preserved environment humidity adjusting material progress, historical relic's protection and archaeology science as far as possible; 2009,21 (z1): 11-17).This is that especially organic quality historical relic (like wooden class, stationery, weaving category, leather-like, sclerotin class historical relic etc.) when being in dry environment, can shrink because when historical relic or article, cracking, warpage and efflorescence; And when being in wet environment, can expand, and create growing environment for mikrobe, mould, make article stay stain even go rotten.In addition, the frequent and variation significantly of humidity also can be quickened fatigue, distortion and the damage of article.
At present, the modal method of humidity regulation is the use of humidifier and air-conditioning system; But these two kinds of methods need consume a large amount of energy, do not meet the requirement of low-carbon (LC), ecological, environmental protective.And humidity adjusting material is a kind of moisture that can absorb automatically with the variation of ambient moisture, emit; And then the relative constant material of maintenance environment space humidity (Ran Maoyu, Japanese to Research on moisture conditioning materials and application, the material Leader; 2002,16 (11): 42-44).Because automatism and the incompetent consumption of humidity adjusting material in the damping process, thereby it is at building (Jiang Zhengwu, Sun Zhenping, Wang Peiming, cement based self moisture control architechture material and preparation method thereof; Chinese patent, CN100357210), the weaving (Hu Zhiwen, Zhang Jing, Cao Xiaoye, a kind of method of manufacture of humidity conditioning function fabric; Chinese patent, 101962852A), historical relic's protection (Luo Xiyun, Jin Xinrong, historical relic's protection is with the mechanism research of compound humextant; New Chemical Materials; 2000, (12): 15-17,11), there is important application prospects in field such as packing.
Press material composition, humidity adjusting material is broadly divided into four big types of special silica-gel, inorganic salt, inorganic mineral and organic polymer materials etc.Wherein the wet volume capacity of silica gel and macromolecular material is high, but its moisture releasing poor-performing; The humidity though the inorganic salts material can control environment preferably is prone to deliquescence, saltouts and contaminate environment; Inorganic mineral class material can adsorb and discharge water vapour preferably, but its wet volume capacity is less, controlling moisture is stable fully.
In addition, owing to receive the restriction of factors such as material characterization of adsorption and moisture releasing hysteresis, the regain of humidity adjusting material can increase gradually behind the circulation moisture adsorption and releasing, and then the damping ability of humidity adjusting material is reduced gradually.If humidity adjusting material can be as discolour silica gel through the qualitative indication regain of change in color what and after through processing such as heating, can recover its damping ability; Thereby can make humidity adjusting material regeneration and application repeatedly, to guarantee the relatively stable of historical relic storage space humidity.But present humidity adjusting material does not still have this class feature; And there is the problem of moisture releasing poor-performing in discolour silica gel.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; A kind of changeable colour, high-efficiency composite humidity controlling agent and preparation method thereof are provided; Thereby make the humextant of preparing not only have very high wet volume capacity and damping ability; And can change what of reflection humextant regain through appearance color, with reach can be in time through the damping ability of heat treated adjustment humextant, reduce the target of historical relic storage space moisture fluctuation as far as possible.
Technical purpose of the present invention is achieved through following technical proposals:
In technical scheme of the present invention, be raw material with zeyssatite, sodium acrylate and acrylic amide, prepare zeyssatite with high wet volume capacity and damping ability/gather (acrylic acid-acrylamide) composite humidity adjusting material through inverse suspension polymerization method; Then composite humidity adjusting material is immersed in NSC 51149 or the aldrich mixture and absorbs, after separation, pulverizing, granulation, oven dry, be finished product afterwards to saturated.Specifically, comprise the steps
(1) zeyssatite is carried out organically-modified, to strengthen the associativity between itself and the organic polymer.Specifically; Can earlier diatomite material be carried out roasting to remove moisture content, for example, utilize acid solution that diatomite material is cleaned then at 600-800 ℃ of following roasting 60-90min; To remove impurity, for example putting into mass percent in 1: 3 ratio of solid-liquid mass ratio is 70%H
2SO
4In the aqueous solution, soaked 4-6 hour down at 80-100 ℃; Then utilize cetyl trimethylammonium bromide (CTAB) to carry out organically-modified to zeyssatite; For example zeyssatite being joined mass percent is in 2% cetyl trimethylammonium bromide (CTAB) aqueous solution; And stir down 2h at 60 ℃, cooling, washing, 80-100 ℃ vacuum-drying 60-90min and grind after can obtain organically-modified zeyssatite.
(2) configuration reaction monomers solution specifically, disposes certain density basic soln, slowly splashes into then in the vinylformic acid, and the add-on through changing basic soln is to obtain the Acrylic Acid Sodium Acrylate solution of different degree of neutralization (60%～100%); Be that (1: 3)～(3: 1) join required acrylic amide in the Acrylic Acid Sodium Acrylate solution according to vinylformic acid and sodium acrylate sum and acrylic amide mass ratio again, make monomer solution; It is 25% the NaOH aqueous solution, the KOH aqueous solution that said certain density basic soln can be selected massfraction.
(3) prepare zeyssatite/gather (acrylic acid-acrylamide) composite humidity adjusting material through inverse suspension polymerization method; Specifically; With organically-modified zeyssatite according to a certain percentage (10%～70% of monomer solution total mass, i.e. the quality sum of Acrylic Acid Sodium Acrylate and acrylic amide) join in the monomer solution and mix, and carry out ultrasonic oscillation and disperse; Make emulsifying soln, as water; In reaction vessel, add oil phase (for example hexanaphthene) and dispersion agent (the for example Span60 of class of department, the Span80 of class of department in the ratio of water oil volume than 1: 5; Its add-on be the monomer solution quality formed by Acrylic Acid Sodium Acrylate and acrylic amide 1%～30%), and feed rare gas element to remove deoxidation; Water is joined in the reaction vessel, and add initiator and linking agent, be warming up to the kick off temperature initiated polymerization and finish until reaction and promptly obtain zeyssatite/(sodium acrylate-acrylic amide) composite humidity adjusting component.
Wherein said initiator is selected water-soluble persulphate, for example Potassium Persulphate, ammonium persulphate, and its add-on is the 1%-5% of the monomer solution quality be made up of Acrylic Acid Sodium Acrylate and acrylic amide, preferred 1%-3%.
Said linking agent is selected N, N '-methylene-bisacrylamide, and its add-on be the 1%-5% of the monomer solution quality be made up of Acrylic Acid Sodium Acrylate and acrylic amide, preferably 1%-3%.
(4) zeyssatite/(sodium acrylate-acrylic amide) composite humidity adjusting component is joined be dipped to saturatedly in NSC 51149 or the aldrich mixture, after separation, pulverizing, granulation, oven dry, be finished product afterwards.Wherein
Said NSC 51149 or aldrich mixture are that mass percent is 1%～10% the NSC 51149 or the Viola crystallina aqueous solution.And can obtain the equigranular humextant product that granularity is 1～5mm through granulation.
Compared with prior art, beneficial effect of the present invention is that this composite humidity controlling agent not only has very high wet volume capacity and damping ability, and appearance color variation reflection humextant regain what can pass through.This is to holding the humidity range of historical relic shelf space intuitively, so adjust the damping ability of humextant in time, the moisture fluctuation that as far as possible reduces the historical relic storage space has important promoter action.Concrete experimental data is following:
(1) wet volume capacity height, fast an amount of humextant sample is put in the enclosed space that humidity is 93%RH of damping speed are carried out sucting wet experiment; Take out again afterwards and carry out the moisture releasing experiment in the space of putting into 20%RH, and utilize the quality change of precision, and then calculate the moisture adsorption and releasing rate of material for material before and after the FA1004N type electronic analytical balance weighing moisture adsorption and releasing of 0.1mg.The moisture adsorption and releasing experimental result shows that the rate of moisture absorption of this composite humidity controlling agent in humidity 93%RH environment can reach 109.2%; Moisture releasing rate in humidity 20%RH environment can reach 99.0%, and the damping time only needs 1～3 hour.
(2) colour-change is obvious: the moisture adsorption and releasing experimental result shows, this composite humidity controlling agent can be according to the variation of ambient moisture and changed color automatically.NSC 51149 type composite humidity controlling agent can become red-purple and light red from blueness successively with the increase of moisture uptake; And Viola crystallina type humextant can become brown-green and blackish green from pale brown look successively with the increase of moisture uptake.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explanation, but the invention is not restricted to these concrete embodiment.Used zeyssatite is 200 orders by the production of Changbai zeyssatite ltd, granularity.
Embodiment 1
(1) with diatomite material at 600 ℃ of following roasting 60min; Put into 70wt%H in 1: 3 ratio of solid-liquid mass ratio afterwards
2SO
4In the aqueous solution, soaked 4 hours down at 100 ℃.Then, above-mentioned zeyssatite is joined in cetyl trimethylammonium bromide (CTAB) aqueous solution of 2wt%, and stir 2h down at 60 ℃; The cooling, the washing, 80 ℃ of vacuum-drying 60min and grind after can obtain organically-modified zeyssatite.
(2) the preparation massfraction is 25% the NaOH aqueous solution, under the ice-water bath condition, will measure NaOH solution and slowly splash in the vinylformic acid, and the acquisition degree of neutralization is 70% Acrylic Acid Sodium Acrylate solution; Be that 1: 2 ratio joins required acrylic amide in the above-mentioned solution in the mass ratio of vinylformic acid and sodium acrylate sum and acrylic amide again, make monomer solution.Then the organically-modified zeyssatite of monomer solution quality 20% is joined in the monomer solution and mix, and carry out ultrasonic oscillation and disperse 40min, make emulsifying soln.
(3) in the there-necked flask of whipping appts is housed, add the dispersion agent Span 60 of hexanaphthene and monomer solution quality 5% in the ratio of water oil volume than 1: 5, feed nitrogen 20min removing oxygen, and stir and be warming up to 40 ℃ of dissolvings.Slowly import in there-necked flask with glass stick monomer solution after the ultrasonic concussion emulsification and tripolite solution; And the Potassium Persulphate of adding monomer solution quality 1% is as the linking agent N of initiator and monomer solution quality 1%; N '-methylene-bisacrylamide; After stirring 30min, slowly be warming up to 70 ℃, finishing until polyreaction obtains gel.With the gel sample that makes take out, 100 ℃ of vacuum-drying 2 hours, grind afterwards, sieve (50 order) can obtain zeyssatite/gather (sodium acrylate-acrylic amide) composite humidity adjusting material.
(4) composite humidity adjusting material is joined in the cobalt chloride solution of 3wt%, soak 60min at normal temperatures; Afterwards cobalt chloride solution is removed, after cleaning, drying, pulverizing, granulation, oven dry, can obtain granularity is the humextant finished product of 1～3mm.
Embodiment 2
(1) with diatomite material at 600 ℃ of following roasting 60min; Put into 70wt%H in 1: 3 ratio of solid-liquid mass ratio afterwards
2SO
4In the aqueous solution, soaked 4 hours down at 100 ℃.Then, above-mentioned zeyssatite is joined in cetyl trimethylammonium bromide (CTAB) aqueous solution of 2wt%, and stir 2h down at 60 ℃; The cooling, the washing, 80 ℃ of vacuum-drying 60min and grind after can obtain organically-modified zeyssatite.
(2) the preparation massfraction is 25% the NaOH aqueous solution, under the ice-water bath condition, will measure NaOH solution and slowly splash in the vinylformic acid, and the acquisition degree of neutralization is 80% Acrylic Acid Sodium Acrylate solution; Be that 5: 4 ratio joins required acrylic amide in the above-mentioned solution in the mass ratio of vinylformic acid and sodium acrylate sum and acrylic amide again, make monomer solution.Then the organically-modified zeyssatite of monomer solution quality 30% is joined in the monomer solution and mix, and carry out ultrasonic oscillation and disperse 40min, make emulsifying soln.
(3) in the there-necked flask of whipping appts is housed, add the dispersion agent Span 60 of hexanaphthene and monomer solution quality 10% in the ratio of water oil volume than 1: 5, feed nitrogen 20min removing oxygen, and stir and be warming up to 40 ℃ of dissolvings.Slowly import in there-necked flask with glass stick monomer solution after the ultrasonic concussion emulsification and tripolite solution; And the Potassium Persulphate of adding monomer solution quality 1% is as the linking agent N of initiator and monomer solution quality 1%; N '-methylene-bisacrylamide; After stirring 30min, slowly be warming up to 70 ℃, finishing until polyreaction obtains gel.With the gel sample that makes take out, 100 ℃ of vacuum-drying 2 hours, grind afterwards, sieve (50 order) can obtain zeyssatite/gather (sodium acrylate-acrylic amide) composite humidity adjusting material.
(4) composite humidity adjusting material is joined in the cobalt chloride solution of 5wt%, soak 60min at normal temperatures; Afterwards cobalt chloride solution is removed, after cleaning, drying, pulverizing, granulation, oven dry, can obtain granularity is the humextant finished product of 2～4mm.
Embodiment 3
(1) with diatomite material at 600 ℃ of following roasting 60min; Put into 70wt%H in 1: 3 ratio of solid-liquid mass ratio afterwards
2SO
4In the aqueous solution, soaked 4 hours down at 100 ℃.Then, above-mentioned zeyssatite is joined in cetyl trimethylammonium bromide (CTAB) aqueous solution of 2wt%, and stir 2h down at 60 ℃; The cooling, the washing, 80 ℃ of vacuum-drying 60min and grind after can obtain organically-modified zeyssatite.
(2) the preparation massfraction is 25% the NaOH aqueous solution, under the ice-water bath condition, will measure NaOH solution and slowly splash in the vinylformic acid, and the acquisition degree of neutralization is 90% Acrylic Acid Sodium Acrylate solution; Be that 2: 1 ratio joins required acrylic amide in the above-mentioned solution in the mass ratio of vinylformic acid and sodium acrylate sum and acrylic amide again, make monomer solution.Then the organically-modified zeyssatite of monomer solution quality 50% is joined in the monomer solution and mix, and carry out ultrasonic oscillation and disperse 40min, make emulsifying soln.
(3) in the there-necked flask of whipping appts is housed, add the dispersion agent Span 60 of hexanaphthene and monomer solution quality 15% in the ratio of water oil volume than 1: 5, feed nitrogen 20min removing oxygen, and stir and be warming up to 40 ℃ of dissolvings.Slowly import in there-necked flask with glass stick monomer solution after the ultrasonic concussion emulsification and tripolite solution; And the Potassium Persulphate of adding monomer solution quality 1% is as the linking agent N of initiator and monomer solution quality 1%; N '-methylene-bisacrylamide; After stirring 30min, slowly be warming up to 70 ℃, finishing until polyreaction obtains gel.With the gel sample that makes take out, 100 ℃ of vacuum-drying 2 hours, grind afterwards, sieve (50 order) can obtain zeyssatite/gather (sodium acrylate-acrylic amide) composite humidity adjusting material.
(4) composite humidity adjusting material is joined in the Viola crystallina aqueous solution of 3wt%, soak 60min at normal temperatures; Afterwards aldrich mixture is removed, after cleaning, drying, pulverizing, granulation, oven dry, can obtain granularity is the humextant finished product of 1～3mm.
Embodiment 4
(1) with diatomite material at 600 ℃ of following roasting 60min; Put into 70wt%H in 1: 3 ratio of solid-liquid mass ratio afterwards
2SO
4In the aqueous solution, soaked 4 hours down at 100 ℃.Then, above-mentioned zeyssatite is joined in cetyl trimethylammonium bromide (CTAB) aqueous solution of 2wt%, and stir 2h down at 60 ℃; The cooling, the washing, 80 ℃ of vacuum-drying 60min and grind after can obtain organically-modified zeyssatite.
(2) the preparation massfraction is 25% the NaOH aqueous solution, under the ice-water bath condition, will measure NaOH solution and slowly splash in the vinylformic acid, and the acquisition degree of neutralization is 100% sodium acrylate solution; Be that 11: 4 ratio joins required acrylic amide in the above-mentioned solution in sodium acrylate and acrylic amide mass ratio again, make monomer solution.Then the organically-modified zeyssatite of monomer solution quality 60% is joined in the monomer solution and mix, and carry out ultrasonic oscillation and disperse 40min, make emulsifying soln.
(3) in the there-necked flask of whipping appts is housed, add the dispersion agent Span 60 of hexanaphthene and monomer solution quality 20% in the ratio of water oil volume than 1: 5, feed nitrogen 20min removing oxygen, and stir and be warming up to 40 ℃ of dissolvings.Slowly import in there-necked flask with glass stick monomer solution after the ultrasonic concussion emulsification and tripolite solution; And the Potassium Persulphate of adding monomer solution quality 1% is as the linking agent N of initiator and monomer solution quality 1%; N '-methylene-bisacrylamide; After stirring 30min, slowly be warming up to 70 ℃, finishing until polyreaction obtains gel.With the gel sample that makes take out, 100 ℃ of vacuum-drying 2 hours, grind afterwards, sieve (50 order) can obtain zeyssatite/gather (sodium acrylate-acrylic amide) composite humidity adjusting material.
(4) composite humidity adjusting material is joined in the Viola crystallina aqueous solution of 5wt%, soak 60min at normal temperatures; Afterwards aldrich mixture is removed, after cleaning, drying, pulverizing, granulation, oven dry, can obtain granularity is the humextant finished product of 3～5mm.
Embodiment 5
(1) with diatomite material at 600 ℃ of following roasting 60min; Put into 70wt%H in 1: 3 ratio of solid-liquid mass ratio afterwards
2SO
4In the aqueous solution, soaked 4 hours down at 100 ℃.Then, above-mentioned zeyssatite is joined in cetyl trimethylammonium bromide (CTAB) aqueous solution of 2wt%, and stir 2h down at 60 ℃; The cooling, the washing, 80 ℃ of vacuum-drying 60min and grind after can obtain organically-modified zeyssatite.
(2) the preparation massfraction is 25% the NaOH aqueous solution, under the ice-water bath condition, will measure NaOH solution and slowly splash in the vinylformic acid, and the acquisition degree of neutralization is 85% Acrylic Acid Sodium Acrylate solution; Be that 2: 1 ratio joins required acrylic amide in the above-mentioned solution in the mass ratio of vinylformic acid and sodium acrylate sum and acrylic amide again, make monomer solution.Then the organically-modified zeyssatite of monomer solution quality 40% is joined in the monomer solution and mix, and carry out ultrasonic oscillation and disperse 40min, make emulsifying soln.
(3) in the there-necked flask of whipping appts is housed, add the dispersion agent Span 60 of hexanaphthene and monomer solution quality 15% in the ratio of water oil volume than 1: 5, feed nitrogen 20min removing oxygen, and stir and be warming up to 40 ℃ of dissolvings.Slowly import in there-necked flask with glass stick monomer solution after the ultrasonic concussion emulsification and tripolite solution; And the Potassium Persulphate of adding monomer solution quality 1% is as the linking agent N of initiator and monomer solution quality 1%; N '-methylene-bisacrylamide; After stirring 30min, slowly be warming up to 70 ℃, finishing until polyreaction obtains gel.With the gel sample that makes take out, 100 ℃ of vacuum-drying 2 hours, grind afterwards, sieve (50 order) can obtain zeyssatite/gather (sodium acrylate-acrylic amide) composite humidity adjusting material.
(4) composite humidity adjusting material is joined in the cobalt chloride solution of 7wt%, soak 60min at normal temperatures; Afterwards cobalt chloride solution is removed, after cleaning, drying, pulverizing, granulation, oven dry, can obtain granularity is the humextant finished product of 2～4mm.
More than the present invention has been done exemplary description; Should be noted that; Under the situation that does not break away from core of the present invention, the replacement that is equal to that any simple distortion, modification or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (10)
1. a changeable colour, high-efficiency composite humidity controlling agent is characterized in that, adopting the zeyssatite and the plural gel of ROHM, ZX-I, SEPIGEL 305 is the damping component, and be immersed in absorb in NSC 51149 or the aldrich mixture extremely saturated.
2. a kind of changeable colour according to claim 1, high-efficiency composite humidity controlling agent is characterized in that, adopt the plural gel of zeyssatite and ROHM, ZX-I, SEPIGEL 305 to prepare according to following method:
(1) zeyssatite is carried out organically-modified, to strengthen the associativity between itself and the organic polymer
(2) configuration reaction monomers Acrylic Acid Sodium Acrylate-acrylamide soln
(3) prepare zeyssatite/gather (acrylic acid-acrylamide) composite humidity adjusting material through inverse suspension polymerization method
3. a method for preparing changeable colour, high-efficiency composite humidity controlling agent is characterized in that, prepares according to following step:
(1) zeyssatite is carried out organically-modified, to strengthen the associativity between itself and the organic polymer
(2) configuration reaction monomers Acrylic Acid Sodium Acrylate-acrylamide soln
(3) prepare zeyssatite/gather (acrylic acid-acrylamide) composite humidity adjusting material through inverse suspension polymerization method
(4) with zeyssatite/(sodium acrylate-acrylic amide) composite humidity adjusting component join be dipped in NSC 51149 or the aldrich mixture saturated.
4. preparation method according to claim 3; It is characterized in that; In the said step (1), earlier diatomite material is carried out roasting to remove moisture content, utilize acid solution that diatomite material is cleaned then; To remove impurity, then utilize cetyl trimethylammonium bromide to carry out organically-modified to zeyssatite.
5. preparation method according to claim 3; It is characterized in that, in the said step (2), dispose certain density basic soln; Slowly splash into then in the vinylformic acid, the add-on through changing basic soln is to obtain different degree of neutralization Acrylic Acid Sodium Acrylate solution; Be that (1: 3)～(3: 1) join required acrylic amide in the Acrylic Acid Sodium Acrylate solution according to vinylformic acid and sodium acrylate sum and acrylic amide mass ratio again, make monomer solution; It is 25% the NaOH aqueous solution, the KOH aqueous solution that said certain density basic soln can be selected massfraction.
6. preparation method according to claim 5 is characterized in that, in the said step (2), the degree of neutralization of said Acrylic Acid Sodium Acrylate solution is 60%～100%.
7. preparation method according to claim 3; It is characterized in that; In the said step (3), organically-modified zeyssatite joined in the monomer solution by 10%～70% of the monomer solution quality of being made up of Acrylic Acid Sodium Acrylate and acrylic amide mix, and carry out ultrasonic oscillation and disperse; Make emulsifying soln, as water; In reaction vessel, add oil phase and dispersion agent in the ratio of water oil volume, and feed rare gas element to remove deoxidation than 1: 5; Water is joined in the reaction vessel, and add initiator and linking agent, be warming up to the kick off temperature initiated polymerization and finish until reaction and promptly obtain the composite humidity adjusting component.
8. preparation method according to claim 7; It is characterized in that; In the said step (3), said initiator is selected water-soluble persulphate, for example Potassium Persulphate, ammonium persulphate; Its add-on is the 1%-5% of the monomer solution quality be made up of Acrylic Acid Sodium Acrylate and acrylic amide, preferred 1%-3%.
9. preparation method according to claim 7 is characterized in that, in the said step (3); Said linking agent is selected N; N '-methylene-bisacrylamide, its add-on is the 1%-5% of the monomer solution quality be made up of Acrylic Acid Sodium Acrylate and acrylic amide, preferred 1%-3%.
10. preparation method according to claim 3; It is characterized in that; In the said step (4), said NSC 51149 or aldrich mixture are that mass percent is 1%～10% the NSC 51149 or the Viola crystallina aqueous solution, and can obtain the equigranular humextant product that granularity is 1～5mm through granulation.
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| CN107298821A (en) * | 2017-06-28 | 2017-10-27 | 常州市顺旭商贸有限公司 | A kind of preparation method of highly hygroscopic speed hygroscopic material |
| CN110436870A (en) * | 2019-08-14 | 2019-11-12 | 武汉理工大学 | A kind of humidity conditioning function ardealite materials for wall and preparation method thereof suitable for assembled architecture |
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| CN105294933A (en) * | 2015-11-27 | 2016-02-03 | 郑州大学 | Polyacrylamide-based porous humidity controlling material and preparation method thereof |
| CN105294933B (en) * | 2015-11-27 | 2017-07-18 | 郑州大学 | A kind of polyacrylamide base porosity moisture-conditioned material and preparation method thereof |
| CN106084602A (en) * | 2016-06-22 | 2016-11-09 | 黄琳 | A kind of novel humidity adjusting material |
| CN107298821A (en) * | 2017-06-28 | 2017-10-27 | 常州市顺旭商贸有限公司 | A kind of preparation method of highly hygroscopic speed hygroscopic material |
| CN110436870A (en) * | 2019-08-14 | 2019-11-12 | 武汉理工大学 | A kind of humidity conditioning function ardealite materials for wall and preparation method thereof suitable for assembled architecture |
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