CN101134798A - Method for preparing high-absorbent material by microwave radiation of wild mountain apricot fruit waste - Google Patents
Method for preparing high-absorbent material by microwave radiation of wild mountain apricot fruit waste Download PDFInfo
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- CN101134798A CN101134798A CNA2007100185597A CN200710018559A CN101134798A CN 101134798 A CN101134798 A CN 101134798A CN A2007100185597 A CNA2007100185597 A CN A2007100185597A CN 200710018559 A CN200710018559 A CN 200710018559A CN 101134798 A CN101134798 A CN 101134798A
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- wild mountain
- apricot fruit
- mountain apricot
- absorbent material
- microwave radiation
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Abstract
The present invention is microwave radiation process for preparing water absorption material with mountain apricot pulp. The preparation process includes the following steps: drying, crushing and 100-mesh sieving mountain apricot pulp and mixing with distilled water in 40-120 times; gelatinizing inside a microwave reactor of radiation power 150-250 W for 1-3 min; adding initiator, cross-linking agent, acrylamide and acrylic acid through stirring to produce pre-reaction; radiating the pre-reaction resultant in the microwave reactor of radiation power 150-250 W to produce grafting polymerization for 3-8 min; soaking the product in methanol for 1-5 hr, stoving and crushing. The water absorption material has distilled water absorbing rate of 200-800 times the dry weight, and 0.9 % concentration salt water absorbing rate of 20-75 times the dry weight.
Description
Technical field
The invention belongs to technical field of macromolecules, relate to a kind of preparation of water-absorbing material, relate in particular to the method that a kind of microwave radiation wild mountain apricot fruit prepares high-absorbent material.
Background technology
It is the waste of inedibility that wild ansu apricot is got nuclear back remainder, can pollute environment.Its composition is as follows: Mierocrystalline cellulose: 50%, soluble sugar 2.1%, pectin 1.6%, ash 8%, protein 3%, other (insoluble polysaccharide, VITAMIN, organic acid, pigments etc.) 35.3%.Because it contains very abundant Mierocrystalline cellulose and polyose, so can be used for the preparation of water-absorbing material.
Summary of the invention
The object of the present invention is to provide a kind of is raw material with the wild mountain apricot fruit waste, through the method for microwave radiation synthesizing super absorbent material.
The present invention is to be raw material with the wild mountain apricot fruit, and with the synthetic degradable water-absorbing material of acrylic acid graft copolymerization, its concrete technology is as follows under microwave radiation:
1. with wild mountain apricot fruit drying, pulverizing, mistake 100 mesh sieves;
2. the distilled water that adds 40～120 times of amounts of wild mountain apricot fruit quality after mixing, places the microwave reaction device, is under 150～250W in radiation power, gelatinization 1～3min minute;
3. add the initiator of wild mountain apricot fruit quality 2～8%, 2～6% linking agent successively, the acrylamide that the wild mountain apricot fruit quality is 1～4.5 times, 0.3～1.5 times vinylformic acid stir, and obtain the pre-reaction thing;
Wherein the preferable amount of each component is: initiator is 3～5% of a wild mountain apricot fruit quality; Linking agent is 3～5% of a wild mountain apricot fruit quality; Acrylamide is 3～4.5 times of wild mountain apricot fruit quality.
The vinylformic acid that the present invention adopts is in ice-water bath, with in 20% the sodium hydroxide and after acrylate and acrylic acid mixture, its degree of neutralization is 60～80%; Acrylic acid preferred amounts is 1～1.5 times of wild mountain apricot fruit quality.
4. the pre-reaction thing being placed the microwave reaction device, is under 150～250W in radiation power, and radiation 3～8min carries out graft polymerization.Best microwave radiation condition is: radiation power is 180～200W, and radiated time is 4～5min.
5. product is dried (can dry down at 60～70 ℃) with the methyl alcohol immersion after 1～5 hour, pulverize promptly.Preferred soak time is about 4 hours.
Initiator of the present invention is an ammonium persulphate.
Linking agent of the present invention is a N,N methylene bis acrylamide.
The water-absorbing material of the present invention preparation, after measured, it inhales distilled water multiplying power can reach 200～800 times of self dry weight, inhales salt solution (0.9%) multiplying power and can reach 20～75 times of self dry weight.
The present invention has following advantage compared to existing technology:
1, the present invention is a raw material with the wild mountain apricot fruit of cheapness, and through microwave radiation synthesizing new water-absorbing material, its cost is low, and water absorbing properties is good; Waste obtains utilizing simultaneously, turns waste into wealth, and realizes resource circulation utilization.
2, the present invention makes shorten greatly than popular response reaction time owing to used microwave technology, and energy consumption is low, has improved efficient.
3, technology of the present invention is simple, and is easy to operate, is easy to suitability for industrialized production.
Embodiment
Embodiment one:
Get 16.5 parts of distilled water, with 0.2 part of wild mountain apricot fruit waste (dry, pulverize, filter the back) adding with 100 mesh sieves, wait it to mix after, the microwave oven gelatinization 3 minutes of putting into 180W; After the cooling, add 0.008 part of ammonium persulphate, N successively, 0.008 part of N-methylene-bisacrylamide, 0.9 part of acrylamide, the sodium hydroxide by 20% are neutralized to degree of neutralization in ice-water bath be 0.3 part in 70% vinylformic acid, after stirring, place the microwave reaction device, the adjusting radiation power is 200W, and radiated time 4.5min carries out graft polymerization.After reaction is finished, product with methyl alcohol immersion oven dry after 4 hours, is pulverized, measured performances such as its water-intake rate.Its multiplying power of inhaling distilled water is: 802, and the multiplying power of inhaling salt solution (0.9%) is: 72.
Execute example two:
Get 14 parts of distilled water, with 0.2 part of wild mountain apricot fruit waste (dry, pulverize, filter the back) adding with 100 mesh sieves, wait it to mix after, put into 200W microwave oven gelatinization 2 minutes; After the cooling, add 0.008 part of ammonium persulphate, N successively, 0.012 part of N-methylene-bisacrylamide, 0.8 part of acrylamide, the sodium hydroxide by 20% are neutralized to degree of neutralization in ice-water bath be 0.27 part in 70% vinylformic acid, after stirring, place the microwave reaction device, the adjusting radiation power is 180W, and radiated time 4min carries out graft polymerization.After reaction is finished, product with methyl alcohol immersion oven dry after 4 hours, is pulverized, measured performances such as its water-intake rate.The multiplying power of wherein inhaling distilled water is: 566, and the multiplying power of inhaling salt solution (0.9%) is: 67.
Embodiment three:
Get 10 parts of distilled water, with 0.2 part of wild mountain apricot fruit waste (dry, pulverize, filter the back) adding with 100 mesh sieves, wait it to mix after, put into 180W microwave oven gelatinization 3 minutes; After the cooling, add 0.008 part of ammonium persulphate, N successively, 0.012 part of N-methylene-bisacrylamide, 0.3 part of acrylamide, to be neutralized to degree of neutralization by sodium hydroxide at ice-water bath be 0.1 part in 70% vinylformic acid, after stirring, place the microwave reaction device, the adjusting radiation power is 180W, and radiated time 6min carries out graft polymerization.After reaction is finished, product with methyl alcohol immersion oven dry after 4 hours, is pulverized, measured performances such as its water-intake rate.The multiplying power of wherein inhaling distilled water is: 208, and the multiplying power of inhaling salt solution (0.9%) is: 21.
Embodiment four:
Get 14 parts of distilled water, with 0.2 part of wild mountain apricot fruit waste (dry, pulverize, filter the back) adding with 100 mesh sieves, wait it to mix after, put into 180W microwave oven gelatinization 3 minutes; After the cooling, add 0.004 part of ammonium persulphate, N successively, 0.012 part of N-methylene-bisacrylamide, 0.6 part of acrylamide, to be neutralized to degree of neutralization by sodium hydroxide in ice-water bath be 0.2 part in 80% vinylformic acid, after stirring, place the microwave reaction device, the adjusting radiation power is 180W, and radiated time 7min carries out graft polymerization.After reaction is finished, product with methyl alcohol immersion oven dry after 4 hours, is pulverized, measured performances such as its water-intake rate.Its multiplying power of inhaling distilled water is: 451, and the multiplying power of inhaling salt solution (0.9%) is: 37.
Claims (6)
1. a microwave radiation wild mountain apricot fruit prepares the method for high-absorbent material, comprises following processing step:
1. with wild mountain apricot fruit drying, pulverizing, mistake 100 mesh sieves;
2. the distilled water that adds 40～120 times of wild mountain apricot fruit quality after mixing, places the microwave reaction device, is under 150～250W in radiation power, gelatinization 1～3min minute;
3. the initiator, 2～6% linking agents that add wild mountain apricot fruit quality 2～8% successively, the acrylamide that the wild mountain apricot fruit quality is 1～4.5 times, 0.3～1.5 times vinylformic acid stir, and obtain the pre-reaction thing;
4. the pre-reaction thing being placed the microwave reaction device, is under 150～250W in radiation power, and radiation 3～8min carries out graft polymerization;
5. product is dried after 1～5 hour with the methyl alcohol immersion, pulverize promptly.
2. the microwave radiation wild mountain apricot fruit prepares the method for high-absorbent material according to claim 1, and it is characterized in that: described initiator is an ammonium persulphate.
3. the microwave radiation wild mountain apricot fruit prepares the method for high-absorbent material according to claim 1, and it is characterized in that: described linking agent is a N,N methylene bis acrylamide.
4. the microwave radiation wild mountain apricot fruit prepares the method for high-absorbent material according to claim 1, and it is characterized in that: described vinylformic acid is in ice-water bath, with in 20% the sodium hydroxide and after acrylate and acrylic acid mixture, its degree of neutralization is 60～80%.
5. the microwave radiation wild mountain apricot fruit prepares the method for high-absorbent material according to claim 1, and it is characterized in that: the 4. described microwave radiation condition of step is: radiation power is 180～200W, and radiated time is 4～5min.
6. the microwave radiation wild mountain apricot fruit prepares the method for high-absorbent material according to claim 1, it is characterized in that: the 5. described oven dry of step is 60～70 ℃ of oven dry down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100185597A CN100558773C (en) | 2007-08-07 | 2007-08-07 | The microwave radiation wild mountain apricot fruit waste prepares the method for high-absorbent material |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100185597A CN100558773C (en) | 2007-08-07 | 2007-08-07 | The microwave radiation wild mountain apricot fruit waste prepares the method for high-absorbent material |
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| CN101134798A true CN101134798A (en) | 2008-03-05 |
| CN100558773C CN100558773C (en) | 2009-11-11 |
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| CNB2007100185597A Expired - Fee Related CN100558773C (en) | 2007-08-07 | 2007-08-07 | The microwave radiation wild mountain apricot fruit waste prepares the method for high-absorbent material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977271A (en) * | 2012-12-14 | 2013-03-20 | 西北师范大学 | Method for preparing chitosan/crylic acid composite through initiating polymerization by using glow discharge electrolysis plasma |
| CN109678152A (en) * | 2019-01-08 | 2019-04-26 | 惠州学院 | The method that mushroom bran prepares high adsorption porous active carbon |
-
2007
- 2007-08-07 CN CNB2007100185597A patent/CN100558773C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977271A (en) * | 2012-12-14 | 2013-03-20 | 西北师范大学 | Method for preparing chitosan/crylic acid composite through initiating polymerization by using glow discharge electrolysis plasma |
| CN102977271B (en) * | 2012-12-14 | 2015-03-04 | 西北师范大学 | Method for preparing chitosan/crylic acid composite through initiating polymerization by using glow discharge electrolysis plasma |
| CN109678152A (en) * | 2019-01-08 | 2019-04-26 | 惠州学院 | The method that mushroom bran prepares high adsorption porous active carbon |
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| CN100558773C (en) | 2009-11-11 |
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Granted publication date: 20091111 Termination date: 20100807 |