CN103724532A - High-efficiency synthesis process of water-absorbent resin - Google Patents
High-efficiency synthesis process of water-absorbent resin Download PDFInfo
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- CN103724532A CN103724532A CN201210422083.4A CN201210422083A CN103724532A CN 103724532 A CN103724532 A CN 103724532A CN 201210422083 A CN201210422083 A CN 201210422083A CN 103724532 A CN103724532 A CN 103724532A
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- acrylamide
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- absorbent resin
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Abstract
The invention discloses a high-efficiency synthesis process of a water-absorbent resin. The high-efficiency synthesis process comprises the following steps: (a) needed raw materials are weighed according to the ratio; (b) acrylamide is put in a beaker; distilled water is added for high-speed stirring; (c) the standing is implemented for 60 minutes to totally hydrate for future use; (d) after the dissolving is complete, sodium bentonite, 2-acrylamide-2-methyl propanesulfonic acid, a cross-linking agent and an initiator are added to continuously stir with high speed and to pre-react with constant temperature; the constant-temperature pre-action temperature is 50 DEG C; the constant-temperature pre-action lasts 120 minutes; the mass of the acrylamide occupying the total mass of the monomers is 10-18%; (e) the reaction mixed liquid is poured in a mold; the temperature is increased; the thermostatic water bath saponification is implemented to form a colloid; the reaction is finished to obtain the target product. The high-efficiency synthesis process can successfully synthesize the water-absorbent resin with high performances, and has high synthesis efficiency; various performances of the synthesized product are all better than that of the conventional product.
Description
Technical field
The present invention relates to a kind of high-level efficiency synthesis technique of absorbent resin.
Background technology
The character that material can absorb moisture in water is called water-absorbent.The water-absorbent of material represents with water-intake rate, and water-intake rate has quality water-intake rate and two kinds of method for expressing of volume water absorption rate.
In material, absorbing water point sucks by open pores, therefore open porosity is larger, the water regain of material the more.Material water suction reaches volume water absorption rate when saturated, is the open porosity of material.
The water-absorbent of material is relevant with the porosity of material and pore character.For trickle open pore, porosity is larger, and water-intake rate is larger.The pore moisture of remaining silent can not be entered, although and opening macropore moisture easily enters, can not retain, can only soak hole wall, so water-intake rate is still less.The water-intake rate of various materials is very not identical, widely different, and as the water-intake rate of grouan only has 0.5%～0.7%, concrete water-intake rate is 2%～3%, and the water-intake rate of clay brick reaches 8%～20%, and the water-intake rate of timber can exceed 100%.
The character that material absorbs moisture in damp atmosphere is called water absorbability.Moist material also can be emitted moisture in dry air, and this claims water absorbability.The water absorbability of material represents with water ratio.Water ratio mean material internal the moisture heavy percentage that accounts for material dry weight.
The water absorbability of material changes with the humidity of air and the variation of envrionment temperature, and when atmospheric moisture is large and temperature is lower, the water ratio of material is just large, otherwise little.The water ratio when humidity of contained humidity and air balances each other in material, is called equilibrium moisture content.
Absorb the moisture of own wt hundred times to thousand times, nontoxic, harmless, pollution-free; Water-retaining capacity extra-heavy, water retention capacity extra-high-speed, the high-molecular weight polymer obtaining by acroleic acid polymerization → high water-retaining capacity, the balance of absorbed dose under high loading, absorb water point and can not be extruded by simple physical method, and can repeatedly release water, water suction.Be applied to agroforestry aspect, can form at plant root " miniature reservoir ".Super absorbent resin, except water suction, can also absorb fertilizer, agricultural chemicals, and discharge slowly to increase fertilizer efficiency and drug effect.Super absorbent resin, with its superior performance, is widely used in agroforestry production, urban landscaping, drought-resistant water-preserving, defends and controls sand, and brings into play huge effect.In addition, super absorbent resin also can be applicable to many fields such as health care, oil production, material of construction, communications and transportation.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of high-level efficiency synthesis technique of absorbent resin is provided, this synthesis technique can successfully synthesize high performance absorbent resin, and combined coefficient is high, and the product properties synthesizing is all better than currently available products greatly.
Object of the present invention is achieved through the following technical solutions: a kind of high-level efficiency synthesis technique of absorbent resin, comprises the following steps:
(a) first, according to proportioning, take synthetic required starting material, starting material comprise sodium bentonite, acrylamide and 2-acrylamide-2-methylpro panesulfonic acid;
(b) acrylamide is placed in to beaker, adds distilled water, high-speed stirring;
(c) standing 60 minutes, aquation was complete, stand-by;
(d) until completely dissolved, add sodium bentonite, 2-acrylamide-2-methylpro panesulfonic acid, linking agent and initiator, continue high-speed stirring, constant temperature pre-reaction, and controlling constant temperature pre-reaction temperature is 50 ℃, constant temperature pre-reaction 120 minutes, and control acrylamide quality accounts for 10%～18% of monomer total mass;
(e) reaction mixture is poured in mould, heated up, water bath with thermostatic control saponification, colloid forms, and reaction finishes, and obtains target product.
In sum, the invention has the beneficial effects as follows: can successfully synthesize high performance absorbent resin, and combined coefficient is high, the product properties synthesizing is all better than currently available products greatly.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
The high-level efficiency synthesis technique of a kind of absorbent resin the present invention relates to, comprises step: (a) first, according to proportioning, take synthetic required starting material, starting material comprise sodium bentonite, acrylamide and 2-acrylamide-2-methylpro panesulfonic acid;
(b) acrylamide is placed in to beaker, adds distilled water, high-speed stirring;
(c) standing 60 minutes, aquation was complete, stand-by;
(d) until completely dissolved, add sodium bentonite, 2-acrylamide-2-methylpro panesulfonic acid, linking agent and initiator, continue high-speed stirring, constant temperature pre-reaction, and controlling constant temperature pre-reaction temperature is 50 ℃, constant temperature pre-reaction 120 minutes, and control acrylamide quality accounts for 10%～18% of monomer total mass;
(e) reaction mixture is poured in mould, heated up, water bath with thermostatic control saponification, colloid forms, and reaction finishes, and obtains target product.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, every foundation technical spirit of the present invention, and any simple modification, equivalent variations that above embodiment is done, within all falling into protection scope of the present invention.
Claims (1)
1. a high-level efficiency synthesis technique for absorbent resin, is characterized in that, comprises the following steps:
(a) first, according to proportioning, take synthetic required starting material, starting material comprise sodium bentonite, acrylamide and 2-acrylamide-2-methylpro panesulfonic acid;
(b) acrylamide is placed in to beaker, adds distilled water, high-speed stirring;
(c) standing 60 minutes, aquation was complete, stand-by;
(d) until completely dissolved, add sodium bentonite, 2-acrylamide-2-methylpro panesulfonic acid, linking agent and initiator, continue high-speed stirring, constant temperature pre-reaction, and controlling constant temperature pre-reaction temperature is 50 ℃, constant temperature pre-reaction 120 minutes, and control acrylamide quality accounts for 10%～18% of monomer total mass;
(e) reaction mixture is poured in mould, heated up, water bath with thermostatic control saponification, colloid forms, and reaction finishes, and obtains target product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210422083.4A CN103724532A (en) | 2012-10-11 | 2012-10-11 | High-efficiency synthesis process of water-absorbent resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210422083.4A CN103724532A (en) | 2012-10-11 | 2012-10-11 | High-efficiency synthesis process of water-absorbent resin |
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| Publication Number | Publication Date |
|---|---|
| CN103724532A true CN103724532A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210422083.4A Pending CN103724532A (en) | 2012-10-11 | 2012-10-11 | High-efficiency synthesis process of water-absorbent resin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330334A (en) * | 2015-11-18 | 2016-02-17 | 江苏苏博特新材料股份有限公司 | Preparation method of silane modified concrete internal curing agent |
| CN107418183A (en) * | 2017-09-06 | 2017-12-01 | 苏州纽东精密制造科技有限公司 | A kind of bumper composite and preparation method thereof |
-
2012
- 2012-10-11 CN CN201210422083.4A patent/CN103724532A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330334A (en) * | 2015-11-18 | 2016-02-17 | 江苏苏博特新材料股份有限公司 | Preparation method of silane modified concrete internal curing agent |
| CN107418183A (en) * | 2017-09-06 | 2017-12-01 | 苏州纽东精密制造科技有限公司 | A kind of bumper composite and preparation method thereof |
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Application publication date: 20140416 |