CN104177535A - Water absorbing agent for drying machine and preparation method thereof - Google Patents
Water absorbing agent for drying machine and preparation method thereof Download PDFInfo
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- CN104177535A CN104177535A CN201410432979.XA CN201410432979A CN104177535A CN 104177535 A CN104177535 A CN 104177535A CN 201410432979 A CN201410432979 A CN 201410432979A CN 104177535 A CN104177535 A CN 104177535A
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- water
- drying machine
- retaining agent
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- vinylformic acid
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Abstract
The invention discloses a water absorbing agent for a drying machine and a preparation method thereof. The water absorbing agent comprises the following components in percentage by weight: 50%-62% of acrylic acid, 1%-3% of NaOH water solution, 2.5%-6.2% of bentonite, 7%-30% of acrylamide, 9%-19% of glycerol and 1.5%-3.7% of sodium bicarbonate. Compared with the prior art, the water absorbing agent disclosed by the invention has excellent water absorption capacity and water retention capacity, can prevent water from being separated out under higher pressure and is more suitable for being applied to the drying machine in industrial production.
Description
Technical field
The present invention relates to water-retaining agent field, be specifically related to a kind of drying machine water-retaining agent and preparation method thereof.
Background technology
Water-retaining agent is a kind of appropriately crosslinked new functional macromolecule material with spacial framework, water insoluble or organic solvent.Water-retaining agent can absorb fast hundreds of times to thousands of times to the water of own wt by hydration, even and the water absorbing under high pressure also can not separate out, there is good water-retentivity.Water-retaining agent has day by day become a kind of requisite material in people's productive life.Existing water-retaining agent is being applied to industrial production, while being especially applied in drying machine, can not bring into play good effect, and soaking effect is not fully up to expectations.Therefore, urgently there is good absorptive drying machine water-retaining agent.
Summary of the invention
Goal of the invention: the object of this invention is to provide the drying machine water-retaining agent that a kind of soaking effect is good, to solve the problem of water-retaining agent poor effect in industrial drying machine.
Another goal of the invention of the present invention is to provide the preparation method of above-mentioned drying machine water-retaining agent.
Technical scheme: a kind of drying machine water-retaining agent, comprises the component of following weight ratio:
The preparation method of water-retaining agent for drying machine of the present invention, comprises the steps:
(1) the NaOH aqueous solution is added in vinylformic acid, then add wilkinite, soak, mix, stir 0.5～1h with the rotating speeds of 100～200/ minutes;
(2) in the mixed system of the middle gained of step (1), add acrylamide, glycerol and sodium bicarbonate, at 50～80 DEG C, react 2～3h, stir with the rotating speed of 200～400/ minutes simultaneously, in the time that reaction system all forms gel, stop stirring;
(3) after the mixed system of gained in step (2) is taken out, wash after twice with deionized water, pelletizing, after dry, pulverize, obtains drying machine water-retaining agent.
Vinylformic acid, acrylamide, glycerol and sodium bicarbonate used in above-mentioned preparation method are technical pure.
In the NaOH aqueous solution described in step (1), the massfraction of NaOH is that the mass ratio of 10～30%, the NaOH aqueous solution and vinylformic acid consumption is 2～5%.
The mass ratio of the wilkinite described in step (1) and vinylformic acid consumption is 5～10%.
The mass ratio of the acrylamide described in step (2) and vinylformic acid consumption is 33～49%.
The mass ratio of the glycerol described in step (2) and vinylformic acid consumption is 18～30%.
The mass ratio of the described sodium bicarbonate described in step (2) and vinylformic acid consumption is 3～6%.
Beneficial effect: compared with prior art, its remarkable advantage is in the present invention: have excellent water-retaining capacity and water retention capacity, water also can not be separated out under larger pressure, is more suitable in the drying machine in application and industrial production.
Embodiment
Embodiment 1
Component and weight ratio thereof: vinylformic acid 50%, the 10%NaOH aqueous solution 1%, wilkinite 2.5%, acrylamide 26%, glycerol 19%, sodium bicarbonate 1.5%.
Preparation method: (1) adds the NaOH aqueous solution in vinylformic acid, then add wilkinite, soak, mix, stir 1h with the rotating speed of 100/ minute;
(2) in the mixed system of gained in step (1), add acrylamide, glycerol and sodium bicarbonate, react 3h at 50 DEG C, stir with the rotating speed of 200/ minute simultaneously, in the time that reaction system all forms gel, stop stirring;
(3) after the mixed system of gained in step (2) is taken out, wash after twice with deionized water, pelletizing, after dry, pulverize, obtains drying machine water-retaining agent.
Embodiment 2
Component and weight ratio thereof: vinylformic acid 62%, the 30wt%NaOH aqueous solution 3%, wilkinite 6.2%, acrylamide 16.1%, glycerol 9%, sodium bicarbonate 3.7%.
Preparation method: (1) adds the NaOH aqueous solution in vinylformic acid, then add wilkinite, soak, mix, stir 0.5h with the rotating speed of 200/ minute;
(2) in the mixed system of gained in step (1), add acrylamide, glycerol and sodium bicarbonate, react 2h at 80 DEG C, stir with the rotating speed of 400/ minute simultaneously, in the time that reaction system all forms gel, stop stirring;
(3) after the mixed system of gained in step (2) is taken out, wash after twice with deionized water, pelletizing, after dry, pulverize, obtains drying machine water-retaining agent.
Embodiment 3
Component and weight ratio thereof: vinylformic acid 55%, the 20wt%NaOH aqueous solution 2%, wilkinite 4.5%, acrylamide 19%, glycerol 17%, sodium bicarbonate 2.5%.
Preparation method: (1) adds the NaOH aqueous solution in vinylformic acid, then add wilkinite, soak, mix, stir 1h with the rotating speed of 150/ minute;
(2) in the mixed system of gained in step (1), add acrylamide, glycerol and sodium bicarbonate, react 2.5h at 70 DEG C, stir with the rotating speed of 300/ minute simultaneously, in the time that reaction system all forms gel, stop stirring;
(3) after the mixed system of gained in step (2) is taken out, wash after twice with deionized water, pelletizing, after dry, pulverize, obtains drying machine water-retaining agent.
Claims (7)
1. a drying machine water-retaining agent, is characterized in that, comprises the component of following weight ratio:
2. the preparation method of water-retaining agent for drying machine as claimed in claim 1, is characterized in that, comprises the steps:
(1) the NaOH aqueous solution is added in vinylformic acid, then add wilkinite, soak, mix, stir 0.5～1h with the rotating speeds of 100～200/ minutes;
(2) in the mixed system of the middle gained of step (1), add acrylamide, glycerol and sodium bicarbonate, at 50～80 DEG C, react 2～3h, stir with the rotating speed of 200～400/ minutes simultaneously, in the time that reaction system all forms gel, stop stirring;
(3) after the mixed system of gained in step (2) is taken out, wash after twice with deionized water, pelletizing, after dry, pulverize, obtains drying machine water-retaining agent.
3. the preparation method of water-retaining agent for drying machine according to claim 2, is characterized in that, in the NaOH aqueous solution described in step (1), the massfraction of NaOH is that the mass ratio of 10～30%, the NaOH aqueous solution and vinylformic acid consumption is 2～5%.
4. the preparation method of water-retaining agent for drying machine according to claim 2, is characterized in that, the mass ratio of the wilkinite described in step (1) and vinylformic acid consumption is 5～10%.
5. the preparation method of water-retaining agent for drying machine according to claim 2, is characterized in that, the mass ratio of the acrylamide described in step (2) and vinylformic acid consumption is 33～49%.
6. the preparation method of water-retaining agent for drying machine according to claim 2, is characterized in that, the mass ratio of the glycerol described in step (2) and vinylformic acid consumption is 18～30%.
7. the preparation method of water-retaining agent for drying machine according to claim 2, is characterized in that, the mass ratio of the described sodium bicarbonate described in step (2) and sodium bicarbonate vinylformic acid consumption is 3～6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410432979.XA CN104177535A (en) | 2014-08-28 | 2014-08-28 | Water absorbing agent for drying machine and preparation method thereof |
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| CN201410432979.XA CN104177535A (en) | 2014-08-28 | 2014-08-28 | Water absorbing agent for drying machine and preparation method thereof |
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| CN104177535A true CN104177535A (en) | 2014-12-03 |
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| CN201410432979.XA Pending CN104177535A (en) | 2014-08-28 | 2014-08-28 | Water absorbing agent for drying machine and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987594A (en) * | 2015-07-13 | 2015-10-21 | 安徽成方新材料科技有限公司 | Low-cost high-absorption-efficiency oil absorption material and preparation method thereof |
| CN104987640A (en) * | 2015-07-06 | 2015-10-21 | 安徽成方新材料科技有限公司 | Novel carbon nano tube and polyacrylate composite resin absorbent and preparation method thereof |
| CN105001515A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | Biodegradable oil absorbing composite material and preparation method therefor |
| CN105001517A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | Rapid oil absorption composite material and preparation method thereof |
| CN105001516A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | Recyclable oil absorbing composite material and preparation method therefor |
| CN105001518A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | High-efficiency graphene oil absorption material and preparation method thereof |
| CN107511037A (en) * | 2017-09-04 | 2017-12-26 | 无锡普爱德环保科技有限公司 | A kind of drying machine water absorbing agent |
| CN107626189A (en) * | 2017-09-04 | 2018-01-26 | 无锡普爱德环保科技有限公司 | A kind of preparation method of water absorbing agent |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987640A (en) * | 2015-07-06 | 2015-10-21 | 安徽成方新材料科技有限公司 | Novel carbon nano tube and polyacrylate composite resin absorbent and preparation method thereof |
| CN104987594A (en) * | 2015-07-13 | 2015-10-21 | 安徽成方新材料科技有限公司 | Low-cost high-absorption-efficiency oil absorption material and preparation method thereof |
| CN105001515A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | Biodegradable oil absorbing composite material and preparation method therefor |
| CN105001517A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | Rapid oil absorption composite material and preparation method thereof |
| CN105001516A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | Recyclable oil absorbing composite material and preparation method therefor |
| CN105001518A (en) * | 2015-07-13 | 2015-10-28 | 安徽成方新材料科技有限公司 | High-efficiency graphene oil absorption material and preparation method thereof |
| CN107511037A (en) * | 2017-09-04 | 2017-12-26 | 无锡普爱德环保科技有限公司 | A kind of drying machine water absorbing agent |
| CN107626189A (en) * | 2017-09-04 | 2018-01-26 | 无锡普爱德环保科技有限公司 | A kind of preparation method of water absorbing agent |
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Application publication date: 20141203 |