CN110721660A - Preparation method of sanitary water absorbing material based on corn straw seedlings - Google Patents
Preparation method of sanitary water absorbing material based on corn straw seedlings Download PDFInfo
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- CN110721660A CN110721660A CN201910769455.2A CN201910769455A CN110721660A CN 110721660 A CN110721660 A CN 110721660A CN 201910769455 A CN201910769455 A CN 201910769455A CN 110721660 A CN110721660 A CN 110721660A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/30—Compounds of undetermined constitution extracted from natural sources, e.g. Aloe Vera
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
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- Animal Behavior & Ethology (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention provides a preparation method of a water absorbing material for corn straw seedling health, which comprises the following steps: crushing and primarily sieving corn straw seedlings; soaking and filtering the primarily sieved powder to wash; putting the washed corn straw seedling powder into an oven for drying; and (4) performing secondary crushing on the dried straw seedlings and performing microwave treatment. The water absorbing material made of the corn stalk seedlings has the characteristics of wide raw material source, low price, good water absorption and the like. Meanwhile, compared with fluff pulp, the treatment process has no addition of acid and alkali, is harmless to human bodies, and is a novel environment-friendly material. The corn straw is developed and utilized, so that not only is the national policy responded, but also the phenomenon that the corn straw in China is seriously wasted can be relieved. The corn straw can be completely biodegraded, the production process is pollution-free, fluff pulp is replaced and led into the production field of sanitary products, the environmental pollution can be reduced, the environment protection effect is achieved, and the purposes of good permeation effect and high water absorption efficiency can be achieved.
Description
Technical Field
The invention belongs to the technical field of plastic packaging bags, and particularly relates to a preparation method of a water absorbing material for sanitation based on corn straw seedlings.
Background
The corn stalks are natural raw materials, and about 3.5 hundred million tons of corn stalks are produced in agricultural production in China every year. The part of the corn straws used for returning the livestock feed and the domestic fuel is less than 1/3, most of the corn straws are directly burnt in the field instead of being accumulated in the field to be naturally rotted, so that the energy is wasted, and the environment is polluted. The corn straw has the characteristics of biodegradability, wide source, low price and environmental protection, and the corn straw resource is utilized, so that the resource advantage can be converted into economic advantage, and the waste phenomenon of the straw in China can be relieved. In addition, the corn straw is non-toxic and harmless, so that the corn straw has wide prospect when being used for manufacturing environment-friendly materials. The corn straw seedling has strong water absorption, and the water absorption capacity of the corn straw seedling can be improved by modifying the corn straw seedling by a microwave means. The water absorbing material of common sanitary products in the market is mostly composed of high molecular water absorbing resin and fluff pulp, but the high molecular water absorbing resin is high in price, the fluff pulp is obtained by bleaching wood pulp and straw pulp, a certain amount of fluorescent agent, bleaching agent and other chemical reagents are used in the production process, toxins produced by the chemical reagents can permeate into women to be latent for a long time in the using process of women, and gynecological inflammation and even cervical cancer can be caused finally.
However, the conventional method for producing a sanitary absorbent has problems of poor permeation effect and low water absorption efficiency.
Therefore, the invention discloses a preparation method of the water absorbing material for the corn straw seedling health.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method of a water absorbing material for sanitation based on corn straw seedlings, which aims to solve the problems of poor permeation effect and low water absorption efficiency of the existing preparation method of the water absorbing material for sanitation, and the preparation method of the water absorbing material for sanitation based on the corn straw seedlings specifically comprises the following steps:
the method comprises the following steps: crushing and primarily sieving corn straw seedlings;
step two: soaking and filtering the primarily sieved powder to wash;
the specific operation steps are as follows:
the first step is as follows: preparing to soak the powder with distilled water;
the second step is that: carrying out suction filtration after distillation;
the third step: washing is repeated for 4 to 5 times until colorless;
step three: putting the washed corn straw seedling powder into an oven for drying;
step four: performing secondary crushing on the dried straw seedlings and using microwave for treatment; the specific operation steps are as follows:
the first step is as follows: preparing to carry out secondary crushing on the dried straw seedlings;
the second step is that: microwave treatment of the secondarily crushed straw seedlings
The third step: standing the straw seedlings subjected to microwave treatment in the air, and cooling.
Step five: and (3) carrying out ultraviolet treatment on the straw seedlings subjected to the microwave treatment to obtain the product.
Preferably, in the step one, the corn straw seedlings are crushed under the action of a crusher, and the crushed straw seedlings are primarily sieved by a 100-mesh sieve to obtain sieved straw seedling powder.
Preferably, in step two, soaking is carried out for 30 minutes by using distilled water, then suction filtration is carried out by using a suction filter to achieve the purpose of washing, and the step is repeated for 4 to 5 times until the washing water is colorless in color.
Preferably, in the third step, the washed corn stalk seedlings are put into an oven and dried at the temperature of 60 ℃ until the water content is lower than 5 percent.
Preferably, in the fourth step, the crushed straw seedlings are treated by microwaves for 5 to 6 minutes so as to achieve the purpose of modification.
Preferably, in the fourth step, the straw seedlings are finally treated under the action of ultraviolet rays, and the ultraviolet rays with the power of 2 to 3W/m3 are used for irradiating for 60 min.
Compared with the prior art, the invention has the following beneficial effects: the water absorbing material made of the corn straw seedling has the characteristics of wide raw material source, low price, good water absorption and the like. Meanwhile, compared with fluff pulp, the treatment process has no addition of acid and alkali, is harmless to human bodies, and is a novel environment-friendly material. The corn straw is developed and utilized, so that not only is the national policy responded, but also the phenomenon that the corn straw in China is seriously wasted can be relieved. The corn straw can be completely biodegraded, the production process is pollution-free, fluff pulp is replaced and led into the production field of sanitary products, the environmental pollution can be reduced, the environment protection effect is achieved, and the purposes of good permeation effect and high water absorption efficiency can be achieved.
Drawings
FIG. 1 is a flow chart of a preparation method of a water absorbing material for corn straw seedling hygiene.
FIG. 2 is a flow chart of the washing by dipping and suction-filtering the primarily sieved powder.
FIG. 3 is a flow chart of secondary crushing of the dried straw seedlings and application of microwaves.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
in the figure:
as shown in figure 1
The preparation method of the water absorbing material for the corn straw seedling health comprises the following steps:
s101: crushing and primarily sieving corn straw seedlings;
s102: soaking and filtering the primarily sieved powder to wash;
the specific operation steps are as follows:
s201: preparing to soak the powder with distilled water;
s202: carrying out suction filtration after distillation;
s203: washing is repeated for 4 to 5 times until colorless;
s103: putting the washed corn straw seedling powder into an oven for drying;
s104: performing secondary crushing on the dried straw seedlings and using microwave for treatment; the specific operation steps are as follows:
s401: preparing to carry out secondary crushing on the dried straw seedlings;
s402: microwave treatment of the secondarily crushed straw seedlings
S403: standing the straw seedlings subjected to microwave treatment in the air, and cooling.
S105: and (3) carrying out ultraviolet treatment on the straw seedlings subjected to the microwave treatment to obtain the product.
Preferably, in S101, the corn straw seedling is crushed under the action of a crusher, and the crushed straw seedling is primarily sieved by a 100-mesh sieve to obtain sieved straw seedling powder.
Preferably, in S102, soaking is performed for 30 minutes using distilled water, followed by suction filtration using a suction filter for washing purposes, and this step is repeated 4 to 5 times until the washing water is colorless in color.
Preferably, in S103, the washed corn stalk seedlings are put into an oven and dried at 60 ℃ until the water content is lower than 5%.
Preferably, in S104, the crushed straw seedlings are treated by microwaves for 5 to 6 minutes to achieve the purpose of modification.
Preferably, in S104, the straw seedlings are finally treated under the action of ultraviolet rays, and the ultraviolet rays with the power of 2 to 3W/m3 are used for irradiating for 60 min.
Example 1
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. 3 parts of 0.2g of powder are respectively taken and are not subjected to microwave treatment for standby.
Example 2
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 1 minute, and cooling for later use.
Example 3
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 2 minutes, and cooling for later use.
Example 4
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 3 minutes, and cooling for later use.
Example 5
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 4 minutes, and cooling for later use.
Example 6
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 5 minutes, and cooling for later use.
Example 7
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 6 minutes, and cooling for later use.
Example 8
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 7 minutes, and cooling for later use.
Example 8
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 8 minutes, and cooling for later use.
Example 9
1. Crushing the corn stalk seedlings by a crusher, and sieving the crushed corn stalk seedlings by a 100-mesh sieve to obtain corn stalk seedling powder for later use.
2. And (3) washing and filtering the powder, putting the powder into a drying box, and drying the powder at 60 ℃ for later use.
3. And crushing the dried straw seedlings again for later use.
4. Respectively taking 3 parts of 0.2g of powder, carrying out microwave treatment for 9 minutes, and cooling for later use.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (6)
1. A preparation method of a water absorbing material for sanitation based on corn straw seedlings is characterized by comprising the following steps:
the method comprises the following steps: crushing and primarily sieving corn straw seedlings;
step two: soaking and filtering the primarily sieved powder to wash;
the specific operation steps are as follows:
the first step is as follows: preparing to soak the powder with distilled water;
the second step is that: carrying out suction filtration after distillation;
the third step: washing is repeated for 4 to 5 times until colorless;
step three: putting the washed corn straw seedling powder into an oven for drying;
step four: performing secondary crushing on the dried straw seedlings and using microwave for treatment; the specific operation steps are as follows:
the first step is as follows: preparing to carry out secondary crushing on the dried straw seedlings;
the second step is that: microwave treatment of the secondarily crushed straw seedlings
The third step: standing the straw seedlings subjected to microwave treatment in the air, and cooling.
Step five: and (3) carrying out ultraviolet treatment on the straw seedlings subjected to the microwave treatment to obtain the product.
2. The method for preparing a water absorbent material for corn stalk seedling hygiene according to claim 1, wherein in the first step, corn stalk seedlings are crushed by a crusher, and the crushed stalk seedlings are primarily sieved by a 100-mesh sieve to obtain sieved stalk seedling powder.
3. The method for preparing a water absorbent material for seedling hygiene based on corn stalks according to claim 1, wherein in the second step, the water is soaked with distilled water for 30 minutes, and then suction filtration is performed using a suction filter to achieve the purpose of washing, and the step is repeated 4 to 5 times until the washing water is colorless in color.
4. The method for preparing the water absorbing material for corn stalk seedling health as claimed in claim 1, wherein in the third step, the washed corn stalk seedlings are put into an oven and dried at 60 ℃ until the water content is less than 5%.
5. The method for preparing a water absorbing material for corn stalk seedling health as claimed in claim 1, wherein in the fourth step, the crushed stalk seedlings are treated with microwave for 5 to 6 minutes to achieve the purpose of modification.
6. The method for preparing the water absorbing material for corn stalk seedling health as claimed in claim 1, wherein in the fourth step, the stalk seedling is finally treated under the action of ultraviolet rays, and the irradiation is carried out for 60min by using an ultraviolet lamp with the power of 2 to 3W/m 3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769455.2A CN110721660A (en) | 2019-08-20 | 2019-08-20 | Preparation method of sanitary water absorbing material based on corn straw seedlings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910769455.2A CN110721660A (en) | 2019-08-20 | 2019-08-20 | Preparation method of sanitary water absorbing material based on corn straw seedlings |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030054167A1 (en) * | 2001-08-03 | 2003-03-20 | Linfu Wang | Highly carboxylated cellulose fibers and process of making the same |
| CN101768241A (en) * | 2010-03-18 | 2010-07-07 | 绥化学院 | Method for preparing high-water-absorptivity resin by using ultrasonic irradiation |
| CN102382264A (en) * | 2011-07-19 | 2012-03-21 | 广西大学 | Preparation method of cellulose-based water absorbent material |
| CN106747960A (en) * | 2016-11-28 | 2017-05-31 | 河南工业大学 | A kind of method that Microwave Pretreatment strengthens sludge composting conditioner water imbibition |
| CN108262010A (en) * | 2016-12-30 | 2018-07-10 | 海门市源美美术图案设计有限公司 | A kind of cornstalk biological charcoal and its purposes for adsorbing herbicide |
-
2019
- 2019-08-20 CN CN201910769455.2A patent/CN110721660A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030054167A1 (en) * | 2001-08-03 | 2003-03-20 | Linfu Wang | Highly carboxylated cellulose fibers and process of making the same |
| CN101768241A (en) * | 2010-03-18 | 2010-07-07 | 绥化学院 | Method for preparing high-water-absorptivity resin by using ultrasonic irradiation |
| CN102382264A (en) * | 2011-07-19 | 2012-03-21 | 广西大学 | Preparation method of cellulose-based water absorbent material |
| CN106747960A (en) * | 2016-11-28 | 2017-05-31 | 河南工业大学 | A kind of method that Microwave Pretreatment strengthens sludge composting conditioner water imbibition |
| CN108262010A (en) * | 2016-12-30 | 2018-07-10 | 海门市源美美术图案设计有限公司 | A kind of cornstalk biological charcoal and its purposes for adsorbing herbicide |
Non-Patent Citations (2)
| Title |
|---|
| 唐清池等: "《生物技术在农业废弃物上的应用与实践》", 31 December 2015, 中国农业大学出版社 * |
| 宋飞宇等: "玉米秸穰亲水改性研究", 《黑龙江造纸》 * |
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Application publication date: 20200124 |