CN101993516A - Ultraviolet light initiation preparation method of polyacrylate type composite super absorbent resin - Google Patents
Ultraviolet light initiation preparation method of polyacrylate type composite super absorbent resin Download PDFInfo
- Publication number
- CN101993516A CN101993516A CN 200910113423 CN200910113423A CN101993516A CN 101993516 A CN101993516 A CN 101993516A CN 200910113423 CN200910113423 CN 200910113423 CN 200910113423 A CN200910113423 A CN 200910113423A CN 101993516 A CN101993516 A CN 101993516A
- Authority
- CN
- China
- Prior art keywords
- absorbent resin
- preparation
- starch
- press
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention provides a method for preparing polyacrylate type composite super absorbent resin through ultraviolet light initiation, which belongs to the technical field of polymer composite materials. The method comprises the concrete processes of: taking a certain amount of soluble starch; adding a proper amount of water; pasting the materials for about 30 minutes at the room temperature; sequentially adding diatomite and acrylic acid neutralized by sodium (potassium) hydroxide; fully and uniformly mixing the solution, and irradiating the solution for a certain time under an ultraviolet high-voltage mercury lamp at the room temperature; and taking out the product and drying the products. The method has the advantages of simple technical process, short synthesis time, no three-waste pollution, simple equipment, no need of nitrogen conservation and post treatment, easy industrialization, lower cost, uniform structure of prepared materials, high purity, good salt endurance, high water absorption rate and the like. When adopted, the composite super absorbent resin prepared by the polymerization method has the deionized water absorption rate between 3520 and 3660 g/g and the physiological saline (0.9 percent NaCl water solution) absorption rate between 220 and 280 g/g.
Description
Technical field
The present invention relates to a kind of absorbent resin, belong to the agricultural water-absorbing resin of high-salt tolerance.
Background technology
The current agricultural development of China is faced with very stern reality, and water resources is very poor, and severe water and soil erosion has also been brought serious ecological environment problem simultaneously; On the other hand, China's water utilization rate is not high, and wasting phenomenon is comparatively serious.Therefore, rationally efficiently utilizing limited water resource, the water-saving agricultural of realization will be an inexorable trend of China's agricultural development.In numerous water conservation and moisture-holding technical measures, the chemical water-saving technology that develops rapidly in recent years is that the application of super absorbent resin (SAR) is just more and more paid attention to by people.SAR is as a kind of novel high polymer material, can be in fields such as agricultural, forestry, water conservancy, improving desert performances keeping crop seedling from drought, increasing both production and income, improve the soil, check winds and fix drifting sand, multiple function such as soil conservation, thereby generally believed in the world be after chemical fertilizer, agricultural chemicals, mulch film the 4th be hopeful the agrochemicals goods accepted by the peasant most.
People such as USDA north research centre C.R.Russell at first began one's study from starch-grafted vinyl cyanide in 1961, thereafter people such as G.F.Fanta proceeded the research of starch-grafted vinyl cyanide on the basis of forefathers' research, and had at first delivered the paper that the starch conversion material has superior water-retaining capacity in 1966.Water-retaining agent has three major types: synthesizing series, starch series and Mierocrystalline cellulose series, wherein starch series extensive, biodegradable owing to raw material sources, can not bring secondary pollution, output is big, price is low, a safe focus that becomes Recent study, enjoys people's attention.The method of polymeric acrylic acid sodium has much at present, and its traditional polymerization process has reversed emulsion polymerization, inverse suspension polymerization, methods such as chemistry of aqueous solution polymerization and graft polymerization method.These method synthesizing high-hydroscopicity sodium polyacrylates need initiator, organic solvent, linking agent, logical nitrogen etc. usually, and have following shortcoming: the reaction times is longer, product purity is not high, discharging of waste liquid and product contamination that aftertreatment processing complicated and organic disperse phase can bring inevitably, its product salt tolerance is relatively poor.
Research contents
The objective of the invention is to develop a kind of environmental protection, energy-conservation, processing condition are simple, have the synthetic method of high-salt tolerance polyacrylate composite water absorbing resin.It is simple that this polymerization has technological process, and cost is low, the product purity height, and generated time is short, three-waste free pollution, equipment is simple, need not to protect nitrogen and aftertreatment, characteristics such as easy industrialization.
Technical scheme of the present invention: with vinylformic acid, starch, diatomite and sodium hydroxide (potassium) is polymerization single polymerization monomer; the employing wavelength is that 365nm, power are that the straight pipe type ultraviolet high-pressure mercury lamps of 1000W is the polymerization light source; under open environment; nitrogen-less protection, polymerization make salt tolerance polyacrylate composite highly-absorbent resin.
Converging operation step: get a certain amount of Zulkovsky starch and add an amount of water, at room temperature the lakeization is about 30 minutes, the vinylformic acid that adds diatomite then successively and become reconciled in sodium hydroxide (potassium), after the solution thorough mixing is even, at room temperature be placed on the distance of ultraviolet high-pressure mercury lamps 25～35cm, irradiation 25～40min time, get the rubber-like elasticity thin slice, be placed on blowing-type loft drier (90 ℃) oven dry after shredding, (60 orders～80 orders) are pulverized with ball mill in dry back.
Adopt the composite high-water uptake resin of this polymerization process preparation, it inhales the deionized water rate is 3520～3660g/g, and inhaling physiological saline (the 0.9%NaCl aqueous solution) rate is 220～280g/g.
Claims (6)
1. a uv-radiation prepares the method for polyacrylate composite highly-absorbent resin, it is characterized in that: operation steps is, get a certain amount of Zulkovsky starch and add an amount of water, at room temperature the lakeization is about 30 minutes, the vinylformic acid that adds diatomite then successively and become reconciled in, solution thorough mixing with sodium hydroxide (potassium) evenly after, at room temperature be placed on the distance of ultraviolet high-pressure mercury lamps 25～35cm, irradiation 25～40min time, take out the back oven dry, pulverize (60 orders～80 orders).
2. press the preparation method of claims 1 described polyacrylate composite highly-absorbent resin, it is characterized in that: do not add chemical substances such as any light trigger and linking agent, need not nitrogen protection.
3. press the preparation method of claims 1 described polyacrylate composite highly-absorbent resin, it is characterized in that: used ultraviolet lamp is wavelength 365nm, power 1000W straight pipe type high voltage mercury lamp.
4. press the preparation method of claims 1 described polyacrylate composite highly-absorbent resin, it is characterized in that: contain in the prescription of synthetic this water-retaining agent:
Starch and acrylic acid weight ratio are 0.05: 1～0.25: 1;
Diatomite and acrylic acid weight ratio are 0.05: 1～0.20: 1;
Sodium hydroxide (potassium) is 0.60: 1～0.85: 1 with acrylic acid mol ratio.
5. press the preparation method of claims 1 described polyacrylate composite highly-absorbent resin, it is characterized in that:
5.1 it is 10%～25% starch hydrogel that described starch needs gelatinization at normal temperatures to make starch content;
5.2 it is 75%～85% that described vinylformic acid is neutralized to degree of neutralization with 15%～25% sodium hydroxide solution.
6. press the preparation method of claims 1 described polyacrylate composite highly-absorbent resin, it is characterized in that: it inhales the deionized water rate is 3520～3660g/g, and inhaling physiological saline (the 0.9%NaCl aqueous solution) rate is 220～280g/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910113423 CN101993516B (en) | 2009-08-19 | 2009-08-19 | Ultraviolet light initiation preparation method of polyacrylate type composite super absorbent resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910113423 CN101993516B (en) | 2009-08-19 | 2009-08-19 | Ultraviolet light initiation preparation method of polyacrylate type composite super absorbent resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101993516A true CN101993516A (en) | 2011-03-30 |
| CN101993516B CN101993516B (en) | 2012-12-19 |
Family
ID=43784320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910113423 Expired - Fee Related CN101993516B (en) | 2009-08-19 | 2009-08-19 | Ultraviolet light initiation preparation method of polyacrylate type composite super absorbent resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101993516B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588934A (en) * | 2013-11-20 | 2014-02-19 | 宜兴丹森科技有限公司 | Method for preparing salt tolerant super absorbent resin by bentonite |
| CN105777994A (en) * | 2016-03-16 | 2016-07-20 | 张学健 | Kieselguhr-based composite material and preparation method thereof |
| CN107376866A (en) * | 2012-09-11 | 2017-11-24 | 株式会社日本触媒 | Polyacrylic acid（Salt）It is the manufacture method and its water absorbing agent of water absorbing agent |
| CN107880895A (en) * | 2017-11-28 | 2018-04-06 | 信阳师范学院 | It is a kind of using low-grade magma soil as water-keeping material of primary raw material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195674B (en) * | 2006-12-06 | 2011-06-08 | 新疆大学 | Method for producing starch based amphiprotic absorbent resin with semi-interpenetrating network configuration |
| CN100575374C (en) * | 2008-02-29 | 2009-12-30 | 厦门大学 | A kind of preparation method of acrylic acid series semi-interpenetration network composite high water absorption resin |
-
2009
- 2009-08-19 CN CN 200910113423 patent/CN101993516B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376866A (en) * | 2012-09-11 | 2017-11-24 | 株式会社日本触媒 | Polyacrylic acid（Salt）It is the manufacture method and its water absorbing agent of water absorbing agent |
| CN107376866B (en) * | 2012-09-11 | 2021-06-01 | 株式会社日本触媒 | Method for producing polyacrylic acid (salt) water-absorbing agent and water-absorbing agent |
| CN103588934A (en) * | 2013-11-20 | 2014-02-19 | 宜兴丹森科技有限公司 | Method for preparing salt tolerant super absorbent resin by bentonite |
| CN105777994A (en) * | 2016-03-16 | 2016-07-20 | 张学健 | Kieselguhr-based composite material and preparation method thereof |
| CN107880895A (en) * | 2017-11-28 | 2018-04-06 | 信阳师范学院 | It is a kind of using low-grade magma soil as water-keeping material of primary raw material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101993516B (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhou et al. | Synthesis composite hydrogels from inorganic-organic hybrids based on leftover rice for environment-friendly controlled-release urea fertilizers | |
| Xie et al. | Utilization of wheat straw for the preparation of coated controlled-release fertilizer with the function of water retention | |
| CN101045776A (en) | Method for synthesizing super absorbent resin from waxy wheat starch | |
| CN101993516B (en) | Ultraviolet light initiation preparation method of polyacrylate type composite super absorbent resin | |
| CN103819615A (en) | Method of preparing starch-base highly-water-absorbent material by radiation | |
| CN104693362A (en) | Method for preparing cellulose graft copolymer super absorbent resin | |
| CN103769059A (en) | Plant straw surface imprint adsorption material and preparation method thereof | |
| CN101638459B (en) | Method for preparing super absorbent resin with high potassium content by using carboxymethyl potato starch as raw material | |
| CN104448660A (en) | Superabsorbent resin as well as preparation method and applications thereof | |
| CN101993517A (en) | Method for preparing humic acid-based compound superabsorbent resin through ultraviolet light initiation | |
| CN101270179A (en) | Process for synthesizing modified starch series polymeric flocculant | |
| CN109456451B (en) | Corn straw-based super water-absorbent resin and preparation method thereof | |
| CN101289526A (en) | Method for preparing kaolin complex high hydroscopic resin through light polymerization method | |
| CN101117422A (en) | Method for preparing alta-mud composite highly-absorbent resin by optical polymerization process | |
| CN104672407A (en) | Preparation method of natural melanin-acrylic acid composite superabsorbent resin | |
| CN109851726A (en) | A kind of biodegradable graft copolymerized polymer composite material and preparation method | |
| CN114524910A (en) | Preparation method of illumination-resistant and salt-water-resistant durable humic acid drought-resistant water-retaining agent | |
| CN101747466A (en) | Cross-linking agent-free ultraviolet light initiation preparation of sodium polyacrylate water absorption resin with high salt resistance | |
| CN105837755A (en) | Preparation method for agricultural water-retaining agent based on vermiculite and sodium alginate | |
| CN101906188A (en) | Production process for producing water-retaining agent industrially and manually | |
| CN101613603A (en) | A kind of water-retaining agent colloid and preparation method thereof | |
| CN101747467B (en) | Ultraviolet light initiator preparation of polyvinyl alcohol crosslinking sodium polyacrylate high-salt tolerance absorbent resin | |
| CN105061698A (en) | Preparation method of rice husk char based water-retaining agent | |
| CN101161695B (en) | Method for preparing absorbent material by micro-wave radiation of potato fecula industry slag grafted polymeric acrylate | |
| CN101423588A (en) | Industrial synthesis method for producing high water absorption resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150819 |
|
| EXPY | Termination of patent right or utility model |