CN106146735A - A kind of method of rice chaff synthesis hydroscopic high-molecular resin - Google Patents
A kind of method of rice chaff synthesis hydroscopic high-molecular resin Download PDFInfo
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- CN106146735A CN106146735A CN201510102449.3A CN201510102449A CN106146735A CN 106146735 A CN106146735 A CN 106146735A CN 201510102449 A CN201510102449 A CN 201510102449A CN 106146735 A CN106146735 A CN 106146735A
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- rice chaff
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Abstract
The method that the invention discloses a kind of rice chaff synthesis hydroscopic high-molecular resin, configures sodium acrylate solution；Rice chaff and water are inserted in reactor, and at 80 DEG C of gelatinizing 1h, is cooled to 40 DEG C；The sodium acrylate solution adding cross-linking agent is inserted in reactor, stirs 30min under nitrogen atmosphere, be replaced into oxygen atmosphere, add initiator；It is warming up to 55 DEG C of reaction 5h；Cool down, be dried, split, dry, pulverize, sieve, pack and get final product.Present invention can apply to large-scale production, opened up the value of rice chaff, have the advantage that cost is low, produce and control simply, the performance of gained water-absorbing resin is good.The present invention can also improve the crumb structure of soil as the modifying agent of soil and water-retaining agent, increases breathability and the water penetration of soil, reduces the temperature difference in soil daytime and evening.
Description
Technical field
The present invention relates to water-absorbing resin field, the method for a kind of rice chaff synthesis hydroscopic high-molecular resin.
Background technology
Rice chaff is the part after removing rice husk and clean rice during rice making, and main material is silverskin and rice husk chip and few
Amount rice flour, rice chaff is the side-product after human consumption Oryza glutinosa mill, and it is the same with many side-products is less expensive available pair
Product.Rice chaff rich in starch and the nutrient substance such as crude protein, vitamin B group and nitrogen, phosphorus, potassium, magnesium, calcium, drop in water
Xie Hou, the nutrient substance of release becomes the nutrient substance that paddy growth is important.In recent years, rice chaff is in preventing and treating paddy field weed side
The effect in face highlights day by day.Research proves, rice chaff occurs strong reduction reaction in water, consumes substantial amounts of oxygen in water,
Discharge carbon dioxide, thus hinder the sprouting of weeds root system development and seed；The rudimentary organic acid produced can suppress weeds
Root of hair germinates and infringement weeds lobus cardiacus；Rice chaff makes water in field transparency reduce after decomposing, and hinders weeds photosynthesis.Factors
All suppress or hinder the growth of weeds, growth, thus reach good herbicidal effect.It is double that rice chaff also field serves fertile medicine
Recast with and safety and environmental protection, to this end, Panjin Ding Xiang group gropes and test through a series of at national organic mesityl, become
Merit sums up efficiently, the practical technique of rice chaff weeding easily, becomes the major measure of the efficient weeding in organic water rice field.
High-molecular water-absorption water-retention resin is the novel high polymer functional material that development in recent years is got up, owing to water absorption is very strong, and tool
There are the ability absorbing the most thousands of times of moisture of own wt hundred times, and the moisture that release absorbs when arid, thus can be in work
The aspects such as industry, agricultural and daily life are applied.Rice chaff is introduced acrylic monomers and carries out combined polymerization, rice chaff can be made to become
Become a kind of material with super-strong moisture absorbing water conservation.Existing native protein prepares the application of super absorbent resin technology, the present invention
Disclosing a kind of method utilizing rice chaff to prepare super absorbent resin, deep processing and application for rice chaff product open a way
Footpath.Add hydroscopic high-molecular resin after heavy metal all being extracted in terms of Tailings Dam, the arable land that can realize reclaiming, afforest, plant
Tree afforestation, sandy soilization transformation, reach Heavy Metal Pollution Control purpose, simultaneously can be used for the pollution control of flyash stack-up-yard,
After improvement and second ploughing can be realized, for the abundant profit of enterprise's extra earning.
Summary of the invention
The method that it is an object of the invention to provide the rice chaff synthesis hydroscopic high-molecular resin of a kind of water conservation, soil moisture conservation, drought resisting, with
The problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of method of rice chaff synthesis hydroscopic high-molecular resin, concrete steps include:
1) configuration sodium acrylate solution；The acrylic acid of 120g is dissolved in 50ml deionized water, forms acrylic acid solution；
50g sodium hydroxide 150ml water dissolution is become sodium hydroxide solution, after being mixed with sodium hydroxide solution by acrylic acid solution
Prepare sodium acrylate solution；
2) 4-8g rice chaff and 50ml water are inserted in reactor, and at 80 DEG C of gelatinizing 1h, be cooled to 40 DEG C；To acrylic acid
Sodium solution adds 0.024g cross-linking agent, and the sodium acrylate solution adding cross-linking agent is inserted in reactor, in blanket of nitrogen
Enclose lower stirring 30min,
3) displacement nitrogen is to become oxygen atmosphere in oxygen makes reactor, adds 0.192g initiator；It is warming up to 55 DEG C instead
Answer 5h；
4) it is cooled to room temperature；Being dried to biodiversity content is 5-15%, segmentation, 70 DEG C of drying, pulverizes, mistake 150 mesh sieves,
Pack and get final product.
As the further scheme of the present invention: described rice chaff can directly use or re-use after treatment；The mistake wherein processed
Journey: rice chaff soaked, squeezes into pressure filter the solution after immersion and carries out filter pressing, and the filtrate after filter pressing carries out drying
Rice chaff after process.
As the further scheme of the present invention: the degree of neutralization of described sodium acrylate solution is 75%.
As the further scheme of the present invention: described cross-linking agent uses N, N '-methylene-bisacrylamide solution.
As the further scheme of the present invention: described initiator uses potassium peroxydisulfate.
Compared with prior art, the invention has the beneficial effects as follows: present invention can apply to large-scale production, opened up the profit of rice chaff
By value, having the advantage that cost is low, produce and control simply, the performance of gained water-absorbing resin is good.Prepare in the process of the present invention
The water-loss reducer of soil prepared as base material of super absorbent resin, there is good water absorbing properties.Water absorption >=450, water conservation
Amount >=40, has good water conservation, soil moisture conservation performance for soil, and water retention property is sustainable for many years.Hydroscopic high-molecular resin
Not only water absorption, water-retaining property are splendid, and as modifying agent and the water-retaining agent of soil, it can also improve the crumb structure of soil,
Increase breathability and the water penetration of soil, reduce the temperature difference in soil daytime and evening.Fertilizer, pesticide can also be absorbed simultaneously, anti-
Only fertilizer, pesticide and soil erosion, and make fertilizer, agricultural, water slowly release, improve fertilizer, the effect of pesticide, and
It is greatly enhanced drought-resistant ability.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, aobvious
So, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
Embodiment 1
Refer to Fig. 1, in the embodiment of the present invention, the method for a kind of rice chaff synthesis hydroscopic high-molecular resin, concrete steps include:
1) acrylic acid of 120 grams is dissolved in 50ml deionized water, forms acrylic acid solution.
2) 50 grams of sodium hydroxide 150ml water dissolutioies are become sodium hydroxide solution.
3) sodium hydroxide solution is added slowly in acrylic acid solution, is configured to the sodium acrylate solution that degree of neutralization is 75% standby.
4) 4 grams of rice chaff and 50ml distilled water are added in 250ml there-necked flask at 80 DEG C of gelatinizing 1h, be cooled to 40 DEG C.
5) adding 0.024g cross-linking agent N in the sodium acrylate solution that degree of neutralization is 75%, N '-methylene-bisacrylamide is molten
Liquid, is placed in there-necked flask, stirs 30min under nitrogen atmosphere, and then displacement nitrogen is to become in oxygen makes reactor
Oxygen atmosphere, adds initiator potassium persulfate 0.192g.It is warming up to 55 DEG C of reaction 5h, is cooled to room temperature.
6) it is dried to suitable degree, segmentation, 70 DEG C of drying, pulverizing, 150 mesh packagings of sieving.
Embodiment 2
1) after rice chaff being soaked, the solution after immersion being squeezed into pressure filter and carries out filter pressing, the filtrate after filter pressing is dried
Dry standby.
2) acrylic acid of 120 grams is dissolved in 50ml deionized water, forms acrylic acid solution.
3) 50 grams of sodium hydroxide 150ml water dissolutioies are become sodium hydroxide solution.
4) sodium hydroxide solution is added slowly in acrylic acid solution, is configured to sodium acrylate solution standby.
5) 4 grams of rice chaff after preparation and 50ml distilled water are added in 250ml there-necked flask in 80 DEG C of gelatinizing 1h, fall
Temperature is to 40 DEG C.
6) adding 0.024g cross-linking agent N in the sodium acrylate solution that degree of neutralization is 75%, N '-methylene-bisacrylamide is molten
Liquid, is placed in there-necked flask, stirs 30min under nitrogen atmosphere, and then displacement nitrogen is to become in oxygen makes reactor
Oxygen atmosphere, adds initiator potassium persulfate 0.192g.It is warming up to 55 DEG C of reaction 5h, is cooled to room temperature.
7) it is dried to suitable degree, segmentation, 70 DEG C of drying, pulverizing, 150 mesh packagings of sieving.
Embodiment 3
1) acrylic acid of 120 grams is dissolved in 50ml deionized water, forms acrylic acid solution.
2) 50 grams of sodium hydroxide 150ml water dissolutioies are become sodium hydroxide solution.
3) sodium hydroxide solution is added slowly in acrylic acid solution, is configured to sodium acrylate solution standby.
4) 8 grams of rice chaff and 50ml distilled water are added in 250ml there-necked flask at 80 DEG C of gelatinizing 1h, be cooled to 40 DEG C.
5) adding 0.024g cross-linking agent N in the sodium acrylate solution that degree of neutralization is 75%, N '-methylene-bisacrylamide is molten
Liquid, is placed in there-necked flask, stirs 30min under nitrogen atmosphere, and then displacement nitrogen is to become in oxygen makes reactor
Oxygen atmosphere, adds initiator potassium persulfate 0.192g.It is warming up to 55 DEG C of reaction 5h, is cooled to room temperature.
6) it is dried to suitable degree, segmentation, 70 DEG C of drying, pulverizing, 150 mesh packagings of sieving.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (5)
1. the method for a rice chaff synthesis hydroscopic high-molecular resin, it is characterised in that concrete steps include:
1) configuration sodium acrylate solution；The acrylic acid of 120g is dissolved in 50ml deionized water, forms acrylic acid solution；
50g sodium hydroxide 150ml water dissolution is become sodium hydroxide solution, after being mixed with sodium hydroxide solution by acrylic acid solution
Prepare sodium acrylate solution；
2) 4-8g rice chaff and 50ml water are inserted in reactor, and at 80 DEG C of gelatinizing 1h, be cooled to 40 DEG C；To acrylic acid
Sodium solution adds 0.024g cross-linking agent, and the sodium acrylate solution adding cross-linking agent is inserted in reactor, in blanket of nitrogen
Enclose lower stirring 30min,
3) displacement nitrogen is to become oxygen atmosphere in oxygen makes reactor, adds 0.192g initiator；It is warming up to 55 DEG C instead
Answer 5h；
4) it is cooled to room temperature；Being dried to biodiversity content is 5-15%, segmentation, 70 DEG C of drying, pulverizes, mistake 150 mesh sieves,
Pack and get final product.
The method of rice chaff the most according to claim 1 synthesis hydroscopic high-molecular resin, it is characterised in that described rice chaff energy
Directly use or re-use after treatment；The process wherein processed: rice chaff soaked, squeezes into the solution after soaking
Pressure filter carries out filter pressing, and the filtrate after filter pressing carries out the rice chaff after drying process.
The method of rice chaff the most according to claim 1 synthesis hydroscopic high-molecular resin, it is characterised in that described acrylic acid
The degree of neutralization of sodium solution is 75%.
The method of rice chaff the most according to claim 1 synthesis hydroscopic high-molecular resin, it is characterised in that described cross-linking agent
Use N, N '-methylene-bisacrylamide solution.
The method of rice chaff the most according to claim 1 synthesis hydroscopic high-molecular resin, it is characterised in that described initiator
Use potassium peroxydisulfate.
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Citations (5)
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|---|---|---|---|---|
| CN1290714A (en) * | 2000-11-09 | 2001-04-11 | 徐月平 | High hydroscopicity resin specially for oil field and agriculture |
| CN101117371A (en) * | 2006-07-31 | 2008-02-06 | 孙明 | Process for producing plant drought-resisting water-loss reducer by using farm crop by-products |
| US20090069185A1 (en) * | 2004-08-27 | 2009-03-12 | Absorbent Technologies, Inc. | Superabsorbent polymers in agricultural applications |
| CN101914256A (en) * | 2010-08-06 | 2010-12-15 | 西北师范大学 | Method for preparing composite water-retaining agent by adopting plant straws |
| CN102010482A (en) * | 2010-11-02 | 2011-04-13 | 中国农业科学院农业环境与可持续发展研究所 | Method for preparing super-strong water-absorbing water-retaining agent |
-
2015
- 2015-03-09 CN CN201510102449.3A patent/CN106146735A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1290714A (en) * | 2000-11-09 | 2001-04-11 | 徐月平 | High hydroscopicity resin specially for oil field and agriculture |
| US20090069185A1 (en) * | 2004-08-27 | 2009-03-12 | Absorbent Technologies, Inc. | Superabsorbent polymers in agricultural applications |
| CN101117371A (en) * | 2006-07-31 | 2008-02-06 | 孙明 | Process for producing plant drought-resisting water-loss reducer by using farm crop by-products |
| CN101914256A (en) * | 2010-08-06 | 2010-12-15 | 西北师范大学 | Method for preparing composite water-retaining agent by adopting plant straws |
| CN102010482A (en) * | 2010-11-02 | 2011-04-13 | 中国农业科学院农业环境与可持续发展研究所 | Method for preparing super-strong water-absorbing water-retaining agent |
Non-Patent Citations (2)
| Title |
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| 张步宁等: "基于可再生天然原料的绿色高吸水树脂的研究进展", 《材料导报》 * |
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Application publication date: 20161123 |