CN102367385A - Saline-alkali resistant water-retaining agent for coastal city greening and preparation method thereof - Google Patents
Saline-alkali resistant water-retaining agent for coastal city greening and preparation method thereof Download PDFInfo
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- CN102367385A CN102367385A CN 201110202535 CN201110202535A CN102367385A CN 102367385 A CN102367385 A CN 102367385A CN 201110202535 CN201110202535 CN 201110202535 CN 201110202535 A CN201110202535 A CN 201110202535A CN 102367385 A CN102367385 A CN 102367385A
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Abstract
The invention discloses a saline-alkali resistant water-retaining agent for coastal city greening and a preparation method thereof. The saline-alkali resistant water-retaining agent for coastal city greening is prepared from 30 to 40 wt% of acrylic acid, 40 to 50 wt% of alkali liquor, 10 to 20 wt% of acrylamide, 5 to 10 wt% of humic acid, 0.02 to 0.2 wt% of initiators, and 0.02 to 0.15 wt% of a cross-linking agent. The preparation method comprises the following steps that a certain amount of the acrylic acid is neutralized by a certain amount of the alkali liquor according to a ratio; the alkali liquor and the acrylic acid are fully dissolved with each other; the humic acid, the acrylamide, the initiators and the cross-linking agent are added into the solution obtained by the previous step and undergo a reaction for 30 to 40 minutes; the reaction products undergo a polymerization reaction at a temperature of 80 to 90 DEG C for 2 to 3 hours to obtain gel-like reaction liquid, drying, and crushing to obtain desired products. In the invention, ammonia monohydrate in ammonia water is adopted to replace sodium hydroxide so that sodions in products are replaced by ammonium ions. The ammonium ions can be directly absorbed by crops. Therefore, the saline-alkali resistant water-retaining agent for coastal city greening can greatly improve water-retaining agent performances and saline-alkali resistance, can enhance water-retaining agent flowability and weatherability, is beneficial for improvement of soil and stimulation of plant growth, and creates favorable conditions for growth of plants in land produced by regression.
Description
Technical field
The present invention relates to a kind of water-holding agent and preparation method thereof, the greening of especially a kind of coastal cities is with salt tolerant alkali water-holding agent and preparation method thereof.
Background technology
Encircle the exploitation in the Bohai Sea and build the too busy to get away environment of afforesting and beautifying, afforestation, kind Hua Yangcao, greenery patches construction are heavy huge engineerings.The amount of moving back Haiti saliferous, sand is big, lacks fresh water irrigation etc.Especially sodium ion is superfluous.Directly the growth of harm green plants has influenced the survival of trees flowers and plants.
Summary of the invention
Technical problem to be solved by this invention is, a kind of coastal soil plant growing that is fit to is provided, and has high-water performance, and the coastal cities greening that salt tolerant alkali, nutritional type are arranged is with salt tolerant alkali water-holding agent and preparation method thereof.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: the greening of a kind of coastal cities is with salt tolerant alkali water-holding agent, reacted by the composition of following weight per-cent to form:
Vinylformic acid 30-40%;
Alkali lye 40-50%;
Acrylic amide 10-20%
Humic acid 5-10%
Initiator 0.02-0.2%
Linking agent 0.02-0.15%.
Said alkali lye is ammoniacal liquor.
Said initiator is ammonium persulphate and Potassium Persulphate blended composite initiator.
Said ammonium persulphate and Potassium Persulphate blended weight ratio are 1: 1.
Said linking agent is USP Kosher or N, N '-methylene-bisacrylamide.
The greening of said coastal cities is used in a certain amount of alkali and a certain amount of vinylformic acid with the preparation method of salt tolerant alkali water-holding agent in proportion, and fully dissolving; Add humic acid, acrylic amide, initiator, linking agent successively; React after 30-40 minute, 80-90 ℃ polymerization 2-3 hour, the reaction solution gel; Drying promptly gets product after the pulverizing.
The invention has the beneficial effects as follows: the present invention has overcome the shortcoming part of water-holding agent technology in the past, replaces sodium hydroxide with the hydration ammonia in the ammoniacal liquor, replaces sodium ion with ammonium ion in the product, can directly be absorbed by crop.The water-holding agent carboxamido-group can increase substantially the water-absorbing-retaining performance under high salinity degree environment; Humic acid carries out graft copolymerization, can make the water-holding agent surface form one deck membrane structure, can not only increase substantially water-holding agent performance and saline-alkali tolerance; Can also strengthen the free-running property and the weathering resistance of water-holding agent; Help improving soil, the stimulating plant growth creates favorable conditions for moving back Haiti plant-growth.
Embodiment
Below in conjunction with embodiment the present invention is done further explain:
Coastal cities of the present invention greening is with salt tolerant alkali water-holding agent, reacted by the composition of following weight per-cent to form:
Vinylformic acid 30-40%;
Alkali lye 40-50%;
Acrylic amide 10-20%
Humic acid 5-10%
Initiator 0.02-0.2%
Linking agent 0.02-0.15%.
Said alkali lye is ammoniacal liquor.
Said initiator is ammonium persulphate and Potassium Persulphate blended composite initiator.
Said ammonium persulphate and Potassium Persulphate blended weight ratio are 1: 1.
Said linking agent is USP Kosher or N, N '-methylene-bisacrylamide.
The greening of said coastal cities is used in a certain amount of alkali and a certain amount of vinylformic acid with the preparation method of salt tolerant alkali water-holding agent in proportion, and fully dissolving; Add humic acid, acrylic amide, initiator, linking agent successively; React after 30-40 minute, 80-90 ℃ polymerization 2-3 hour, the reaction solution gel; Drying promptly gets product after the pulverizing.
Embodiment 1
Take by weighing 145kg vinylformic acid and add reaction kettle, take by weighing 205kg ammoniacal liquor again and neutralize, open and stir; Add humic acid 25kg then successively, acrylic amide 75kg, initiator (each 0.4kg of ammonium persulphate and Potassium Persulphate) 0.8kg; Linking agent USP Kosher 0.5kg reaction is after 30 minutes; 2 hours reaction solution gels of 80-90 ℃ of polymerization, drying promptly gets product after the pulverizing.
Embodiment 2
Take by weighing 250kg vinylformic acid and add reaction kettle, take by weighing 400kg ammoniacal liquor again and neutralize, open and stir; Add humic acid 50kg then successively, acrylic amide 100kg, initiator (each 0.8kg of ammonium persulphate and Potassium Persulphate) 1.6kg; Linking agent N, N '-methylene-bisacrylamide 0.9kg reacts after 30 minutes; 80-90 ℃ of polyase 13 hour reaction solution gel, drying promptly gets product after the pulverizing.
In sum, content of the present invention is not confined in the above embodiments, and the knowledgeable people in the same area can propose other embodiment easily within technical director's thought of the present invention, but this embodiment is included within the scope of the present invention.
Claims (6)
1. coastal cities greening is characterized in that with salt tolerant alkali water-holding agent, is reacted by the composition of following weight per-cent to form:
Vinylformic acid 30-40%;
Alkali lye 40-50%;
Acrylic amide 10-20%
Humic acid 5-10%
Initiator 0.02-0.2%
Linking agent 0.02-0.15%.
2. coastal cities according to claim 1 greening is characterized in that with salt tolerant alkali water-holding agent said alkali lye is ammoniacal liquor.
3. coastal cities according to claim 1 greening is characterized in that with salt tolerant alkali water-holding agent said initiator is ammonium persulphate and Potassium Persulphate blended composite initiator.
4. coastal cities according to claim 3 greening is characterized in that with salt tolerant alkali water-holding agent said ammonium persulphate and Potassium Persulphate blended weight ratio are 1: 1.
5. coastal cities according to claim 1 greening is characterized in that with salt tolerant alkali water-holding agent said linking agent is USP Kosher or N, N '-methylene-bisacrylamide.
6. the preparation method with salt tolerant alkali water-holding agent is afforested in the said coastal cities of claim 1, it is characterized in that, uses in a certain amount of alkali in proportion and a certain amount of vinylformic acid; And fully dissolving, add humic acid, acrylic amide, initiator, linking agent successively, react after 30-40 minute; 80-90 ℃ polymerization 2-3 hour; The reaction solution gel, drying promptly gets product after the pulverizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202535 CN102367385A (en) | 2011-07-20 | 2011-07-20 | Saline-alkali resistant water-retaining agent for coastal city greening and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202535 CN102367385A (en) | 2011-07-20 | 2011-07-20 | Saline-alkali resistant water-retaining agent for coastal city greening and preparation method thereof |
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| CN102367385A true CN102367385A (en) | 2012-03-07 |
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| CN 201110202535 Pending CN102367385A (en) | 2011-07-20 | 2011-07-20 | Saline-alkali resistant water-retaining agent for coastal city greening and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740375A (en) * | 2014-01-17 | 2014-04-23 | 陕西鼎天济农腐殖酸制品有限公司 | Humic acid water-retaining agent for vegetables and preparation method thereof |
| CN106365887A (en) * | 2016-08-25 | 2017-02-01 | 董晓 | Preparation method of saline-alkaline-tolerant fertilizing-type water retaining agent |
| CN106635037A (en) * | 2016-12-19 | 2017-05-10 | 山东农业大学 | Multifunctional saline and alkaline land modifier and preparation method thereof |
| CN106753407A (en) * | 2016-12-20 | 2017-05-31 | 詹笑 | A kind of geobiont enzyme water-loss reducer and preparation method thereof |
| CN108841390A (en) * | 2018-07-25 | 2018-11-20 | 陕西科技大学 | A kind of cation trigonella bean gum-humic acid sand-consolidating agent and preparation method thereof |
| CN109280553A (en) * | 2018-10-17 | 2019-01-29 | 马书文 | A kind of ferment anti-drought water-retaining agent |
| CN115368908A (en) * | 2022-08-08 | 2022-11-22 | 湛江市博泰生物化工科技实业有限公司 | Saline-alkali soil conditioner based on calcium-magnesium-rich phosphate rock powder, marine polysaccharide and polypeptide and preparation method thereof |
-
2011
- 2011-07-20 CN CN 201110202535 patent/CN102367385A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740375A (en) * | 2014-01-17 | 2014-04-23 | 陕西鼎天济农腐殖酸制品有限公司 | Humic acid water-retaining agent for vegetables and preparation method thereof |
| CN106365887A (en) * | 2016-08-25 | 2017-02-01 | 董晓 | Preparation method of saline-alkaline-tolerant fertilizing-type water retaining agent |
| CN106635037A (en) * | 2016-12-19 | 2017-05-10 | 山东农业大学 | Multifunctional saline and alkaline land modifier and preparation method thereof |
| CN106753407A (en) * | 2016-12-20 | 2017-05-31 | 詹笑 | A kind of geobiont enzyme water-loss reducer and preparation method thereof |
| CN106753407B (en) * | 2016-12-20 | 2018-09-11 | 詹笑 | A kind of geobiont enzyme water-retaining agent and preparation method thereof |
| CN108841390A (en) * | 2018-07-25 | 2018-11-20 | 陕西科技大学 | A kind of cation trigonella bean gum-humic acid sand-consolidating agent and preparation method thereof |
| CN108841390B (en) * | 2018-07-25 | 2021-08-24 | 陕西科技大学 | Cationic fenugreek gum-humic acid sand-fixing agent and preparation method thereof |
| CN109280553A (en) * | 2018-10-17 | 2019-01-29 | 马书文 | A kind of ferment anti-drought water-retaining agent |
| CN115368908A (en) * | 2022-08-08 | 2022-11-22 | 湛江市博泰生物化工科技实业有限公司 | Saline-alkali soil conditioner based on calcium-magnesium-rich phosphate rock powder, marine polysaccharide and polypeptide and preparation method thereof |
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Application publication date: 20120307 |