CN104629072A - Method for preparing high water absorbent material - Google Patents
Method for preparing high water absorbent material Download PDFInfo
- Publication number
- CN104629072A CN104629072A CN201410750774.6A CN201410750774A CN104629072A CN 104629072 A CN104629072 A CN 104629072A CN 201410750774 A CN201410750774 A CN 201410750774A CN 104629072 A CN104629072 A CN 104629072A
- Authority
- CN
- China
- Prior art keywords
- high water
- water absorption
- aqueous solution
- composite material
- linking agent
- 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.)
- Pending
Links
Abstract
The invention discloses a method for preparing a high water absorbent material, belonging to the field of preparation of water absorbent materials. A method for preparing a high water absorbent material with high water absorption capacity and high water absorption rate is provided. The method comprises the following steps: adopting a high-temperature rapid aqueous solution polymerization method, synthesizing a bentonite/polyacrylic acid high water absorbent composite material, and performing surface crosslinking modification on the composite material. The high water absorbent material prepared by the method and the modified material have high water absorption capacity and high water absorption rate.
Description
Technical field
The invention belongs to high-absorbent material preparation field.
Background technology
High absorbency material is a kind of new functional macromolecule material with super-strong moisture absorbing ability, and its water retention capacity is very good, has achieved in agricultural gardening, physiological hygiene articles for use, medicine, food, civil construction etc. and has applied widely.
Summary of the invention
The object of this invention is to provide a kind of high-absorbent material preparation method.
The present invention is achieved by the following technical programs: a kind of high-absorbent material preparation method, wilkinite ultrafine powder through vacuum drying treatment is immersed in 24 ~ 48h in Acrylic Acid Monomer, in the unlimited reactor that whipping appts is housed, add wilkinite/polyacrylic acid matrix material that bentonitic massfraction is 0.05 ~ 0.1, under mixing speed, drip sodium hydroxide solution carry out neutralization reaction, when temperature of reaction system is 90 DEG C, add the linking agent N that massfraction is 0.001, the aqueous solution of N '-methylene-bisacrylamide and the aqueous solution of initiator potassium persulfate, stir, there is slight implode in reaction, polyreaction completes, product drying, pulverize, screening, obtain faint yellow high water absorption composite material particle.
Linking agent (formaldehyde, N, N '-methylene-bisacrylamide, epoxy chloropropane) is mixed with 0.01molL
-1the aqueous solution. then cross-linking agent solution is evenly sprayed particle diameter be after sizing 100 ~ 200 object high water absorption composite materials small-particle surface, dipping 15 ~ 20min, 24h is reacted again in 60 DEG C of baking ovens, finally water-absorbing material is carried out grinding, disperseing, obtain cross-linking modified high water absorption composite material.
The present invention has following beneficial effect:
Adopt high-absorbent material prepared by the method, water absorbent rate is 600 ~ 900, and half-saturation time is 36s, modified high water absorption composite material, and the half-saturation time of its water suction rises to 18s, 21s and 14s respectively.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Specific embodiment: preparation process of the present invention is, wilkinite ultrafine powder through vacuum drying treatment is immersed in 24 ~ 48h in Acrylic Acid Monomer, bentonite in powder height can be made to disperse, the appropriately crosslinked water suction network that it is network cross-linked point that wilkinite the active site of surface and interlayer and Acrylic Acid Monomer can be utilized to react is formed with wilkinite ultrafine powder under the effect of initiator and linking agent, in the unlimited reactor that whipping appts is housed, add wilkinite/polyacrylic acid matrix material that bentonitic massfraction is 0.05 ~ 0.1, under mixing speed, drip sodium hydroxide solution carry out neutralization reaction, when temperature of reaction system is 90 DEG C, add the linking agent N that massfraction is 0.001, the aqueous solution of N '-methylene-bisacrylamide and the aqueous solution of initiator potassium persulfate, stir, there is slight implode in reaction, polyreaction completes, product drying, pulverize, screening, obtain faint yellow high water absorption composite material particle.
Carry out water absorption test to the high water absorption composite material of preparation, its water absorbent rate is 600 ~ 900, and half-saturation time is 36s.
Linking agent (formaldehyde, N, N '-methylene-bisacrylamide, epoxy chloropropane) is mixed with 0.01molL
-1the aqueous solution. then cross-linking agent solution is evenly sprayed particle diameter be after sizing 100 ~ 200 object high water absorption composite materials small-particle surface, dipping 15 ~ 20min, 24h is reacted again in 60 DEG C of baking ovens, finally water-absorbing material is carried out grinding, disperseing, obtain cross-linking modified high water absorption composite material.
Carry out water absorption test to it, Water absorption is substantially constant, and its plate saturation time rises to 18s, 21s and 14s respectively.
Above content is the further description done the present invention in conjunction with concrete embodiment, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (2)
1. a high-absorbent material preparation method, it is characterized in that: the wilkinite ultrafine powder through vacuum drying treatment is immersed in 24 ~ 48h in Acrylic Acid Monomer, in the unlimited reactor that whipping appts is housed, add wilkinite/polyacrylic acid matrix material that bentonitic massfraction is 0.05 ~ 0.1, under mixing speed, drip sodium hydroxide solution carry out neutralization reaction, when temperature of reaction system is 90 DEG C, add the linking agent N that massfraction is 0.001, the aqueous solution of N '-methylene-bisacrylamide and the aqueous solution of initiator potassium persulfate, stir, there is slight implode in reaction, polyreaction completes, product drying, pulverize, screening, obtain faint yellow high water absorption composite material particle.
2. carbon nano-tube/poly ester composite material and preparation method thereof as claimed in claim 1, is characterized in that: linking agent (formaldehyde or N, N '-methylene-bisacrylamide or epoxy chloropropane) is mixed with 0.01molL
-1the aqueous solution. then cross-linking agent solution is evenly sprayed particle diameter be after sizing 100 ~ 200 object high water absorption composite materials small-particle surface, dipping 15 ~ 20min, 24h is reacted again in 60 DEG C of baking ovens, finally water-absorbing material is carried out grinding, disperseing, obtain cross-linking modified high water absorption composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750774.6A CN104629072A (en) | 2014-12-10 | 2014-12-10 | Method for preparing high water absorbent material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750774.6A CN104629072A (en) | 2014-12-10 | 2014-12-10 | Method for preparing high water absorbent material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104629072A true CN104629072A (en) | 2015-05-20 |
Family
ID=53208339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410750774.6A Pending CN104629072A (en) | 2014-12-10 | 2014-12-10 | Method for preparing high water absorbent material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104629072A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392415A (en) * | 2018-02-27 | 2018-08-14 | 严敏烨 | With the expired eyedrops bottle for reminding structure |
| CN110183566A (en) * | 2019-05-31 | 2019-08-30 | 河北民族师范学院 | A kind of compound methacrylate polymer high-intensity water absorbent agent of bentonite and preparation method thereof |
| CN111777709A (en) * | 2020-07-27 | 2020-10-16 | 华侨大学 | Sodium polyacrylate super-absorbent material and green synthesis method thereof |
-
2014
- 2014-12-10 CN CN201410750774.6A patent/CN104629072A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392415A (en) * | 2018-02-27 | 2018-08-14 | 严敏烨 | With the expired eyedrops bottle for reminding structure |
| CN108392415B (en) * | 2018-02-27 | 2020-07-21 | 王春检 | Eyedrop bottle with overdue reminding structure |
| CN110183566A (en) * | 2019-05-31 | 2019-08-30 | 河北民族师范学院 | A kind of compound methacrylate polymer high-intensity water absorbent agent of bentonite and preparation method thereof |
| CN111777709A (en) * | 2020-07-27 | 2020-10-16 | 华侨大学 | Sodium polyacrylate super-absorbent material and green synthesis method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103910896B (en) | A kind ofly lowly return the preparation method of oozing hydroscopic high-molecular resin | |
| CN103183842B (en) | Method for surface crosslinking of super absorbent resin | |
| CN103665411A (en) | High salt tolerance and high water absorption rate super absorbent resin and preparation method thereof | |
| CN103275450B (en) | Method for preparing super absorbent resin | |
| CN103613718B (en) | A kind of method preparing functional microsphere based on polyvinyl alcohol macromonomer | |
| CN102702656B (en) | Preparation method of high liquid permeability water-absorbing resin | |
| CN102408510A (en) | Preparation method for super absorbent resin | |
| CN102643498B (en) | Preparation method of water-absorbing gel containing animal and plant fibers and inorganic nanoparticles | |
| CN103554332A (en) | Preparation method of salt-tolerant super absorbent resin | |
| CN102516454A (en) | Synthesis method for super-absorbent resin containing sulfonic acid group | |
| CN104629072A (en) | Method for preparing high water absorbent material | |
| CN103130965B (en) | A kind of Humic acid type superabsorbent resin and preparation method thereof | |
| CN104086696A (en) | Composite water retention agent capable of promoting plant growth, and preparation and application thereof | |
| CN107822779A (en) | A kind of quick absorption-type water-absorbing resin and preparation method thereof | |
| CN105175757A (en) | Preparation method of salt-resistant super absorbent polymers | |
| CN111675815A (en) | Preparation method of antibacterial super absorbent resin | |
| CN107854223A (en) | It is a kind of suitable for water-absorbing resin of wood pulp core body paper diaper and preparation method thereof | |
| CN104163895A (en) | Method for preparing super absorbent resin by carboxymethyl bagasse | |
| CN102659987B (en) | Potato waste residue/palygorskite/acrylic acid compound water absorption material and preparation method thereof | |
| CN104672407A (en) | Preparation method of natural melanin-acrylic acid composite superabsorbent resin | |
| CN103224630A (en) | Method for preparing water-absorbing resin by ultraviolet and gamma-ray radiation ionization technique | |
| CN105906766A (en) | Preparation method of light/biological dual-degradation high-water-absorption resin based on natural polymer | |
| CN101440144A (en) | Zwitterion association type high wate-absorption resin and preparing method thereof | |
| CN106280163A (en) | A kind of preparation method of salt-tolerant acrylic system High hydrophilous resin | |
| CN105461940B (en) | A kind of natural polymer absorbent material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |