CN103911161B - Soil surface modifier and preparation method thereof - Google Patents
Soil surface modifier and preparation method thereof Download PDFInfo
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- CN103911161B CN103911161B CN201410127183.3A CN201410127183A CN103911161B CN 103911161 B CN103911161 B CN 103911161B CN 201410127183 A CN201410127183 A CN 201410127183A CN 103911161 B CN103911161 B CN 103911161B
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- gum
- correcting agent
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- soll layer
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Abstract
The invention provides a soil surface modifier and a preparation method thereof. The modifier comprises raw materials including corn starch, acrylic acid, acrylamide, an initiator, a crosslinking agent and water. The preparation process of the soil surface modifier comprises the step of fully mixing and emulsifying each component by adopting an ultrasonic emulsification technique. The soil surface modifier disclosed by the invention can be applied to any bare ground such as building sites, bare lands, mounds, sand piles and the like, and has the effects of wind prevention and sand fixation and moisture preservation on surface soils. Moreover, the modifier has very low heavy metal content, can be degraded, and belongs to eco-friendly products.
Description
Technical field
The invention belongs to soil modifier field, particularly a kind of upper soll layer properties-correcting agent and preparation method thereof.
Background technology
Along with the fast development of economy and the quickening of urbanization process, the infrastructure construction speed of China is also accelerated thereupon, because of construction projects such as true traffic, electric power, water conservancies, defines a large amount of bare slopes and ground.These exposed domatic and ground not only influence ecological environment views, destroy balance of nature, and a large amount of dust exposes to the open air, great pollution is caused to environment, also there is serious geologic hazard hidden danger, affect the safety and stability of construction project, the threat strengthened is produced to staff and the healthy of surrounding resident.Therefore, strengthen checking winds and fixing drifting sand and moisturizing to exposed surface soil, have important practical significance.
In prior art, Chinese invention patent " a kind of preparation method of dust suppressing covering agent " (application number: 201110450309.7, the applying date: on December 29th, 2011, applicant: Nanjing University of Technology) disclose a kind of preparation method of dust suppressing covering agent, but the method is after starch pasting process, in reactor, pass into a large amount of nitrogen with displacement air wherein, because nitrogen price is higher, this increases the cost of described dust suppressing covering agent greatly, does not have the prospect using on a large scale and promote.
In sum, be badly in need of at present a kind of wide adaptability, with low cost, and environmentally friendly upper soll layer properties-correcting agent.
Summary of the invention
The object of this invention is to provide a kind of upper soll layer properties-correcting agent and preparation method thereof, this upper soll layer properties-correcting agent is for exposed soil surface, prevent airborne dust to the pollution of environment, reduce the pellet (comprising PM2.5) in the air formed due to airborne dust.Described upper soll layer properties-correcting agent can be applied to any exposed grounds such as construction site, bare land, mound, sand drift, effects on surface soil have check winds and fix drifting sand, the effect of moisturizing.
The object of the invention is to be achieved through the following technical solutions:
A kind of upper soll layer properties-correcting agent, the raw material of described properties-correcting agent comprises W-Gum, vinylformic acid, acrylamide, initiator, linking agent and water, and the weight fraction ratio of described each raw material is:
Further, described initiator is Potassium Persulphate, sodium bisulfite or both mixtures.
Further, described linking agent is sodium hydroxide, potassium hydroxide or both mixtures.
Another object of the present invention is achieved through the following technical solutions:
A preparation method for upper soll layer properties-correcting agent, the raw material of described properties-correcting agent comprises W-Gum, vinylformic acid, acrylamide, initiator, linking agent and water, and the weight fraction ratio of described each raw material is:
Described preparation method comprises the following steps:
1) get the above-mentioned W-Gum of 60% ~ 75%, by corn starch pasting at 85 DEG C, then get described vinylformic acid and acrylamide according to above-mentioned ratio of weight and number, fully mix, when temperature drops to 45 DEG C ~ 55 DEG C, add described initiator, isothermal reaction 3 hours, obtains component 1;
2) get remaining W-Gum, by corn starch pasting at 85 DEG C, then add described linking agent in the W-Gum after gelatinization, obtain component 2;
3) described component 1 and component 2 are fully mixed, carry out ultrasonic emulsification 3 ~ 5 hours, ultrasonic emulsification equipment is high-power ultrasonics vibrating head, carries out emulsification to emulsion, namely obtains described upper soll layer properties-correcting agent.
Further, in described step 3), the frequency of sound wave that described ultrasonic emulsification process uses is 100 ~ 400Hz.
The present invention's beneficial effect is compared to existing technology:
1, soil surface properties-correcting agent of the present invention can be applicable to the places such as construction site, bare land, mound, sand drift, have prevent airborne dust, reduce the air that formed due to airborne dust in the effect of pellet (comprising PM2.5);
2, the present invention utilize synthesis of polymer material away from, take W-Gum as grafting skeleton, be combined with vinylformic acid and acrylamide, synthesize macromolecular cpd, there is excellent film-forming properties and humidity-preserving type, 600 ~ 700g/g is reached to the water-intake rate of distilled water;
3, soil surface properties-correcting agent of the present invention also has buffer effect of fuluic acid, and mainly starch self-crosslinking thing reduces the infringement of Acid Rain on Soil;
In the preparation method of 4, soil surface properties-correcting agent of the present invention, adopt ultrasonic emulsification technology, emulsifying device is high-power ultrasonics vibrating head, carry out emulsification to emulsion, make each composition emulsion quality high, product is stablized, power is little, reduces the preparation cost of product, is conducive to scale operation;
5, the ultrasonic emulsification technology of the present invention's employing, the frequency of sound wave of use is 100 ~ 400Hz, is low frequency emulsifying technology, can avoids heat accumulation, but also reduce the emulsifying capacity of this technology simultaneously;
6, the inorganic content such as soil surface properties-correcting agent heavy metal of the present invention is extremely low, can natural degradation, belongs to Eco-friendly product.
Embodiment
Embodiment 1
A kind of upper soll layer properties-correcting agent, the raw material of described properties-correcting agent comprises W-Gum, vinylformic acid, acrylamide, initiator, linking agent and water, and the weight fraction ratio of described each raw material is:
Further, described initiator is Potassium Persulphate, sodium bisulfite or both mixtures.
Further, described linking agent is sodium hydroxide, potassium hydroxide or both mixtures.
Described upper soll layer preparation method for modifier comprises the following steps:
1) get the above-mentioned W-Gum of 60% ~ 75%, by W-Gum emulsification at 85 DEG C, then get described vinylformic acid and acrylamide according to above-mentioned ratio of weight and number, fully mix, when temperature drops to 45 DEG C ~ 55 DEG C, add described initiator, isothermal reaction 3 hours, obtains component 1;
2) get remaining W-Gum, by corn starch pasting at 85 DEG C, then add described linking agent in the W-Gum after gelatinization, obtain component 2;
3) described component 1 and component 2 are fully mixed, carry out ultrasonic emulsification 3 ~ 5 hours, namely obtain described upper soll layer properties-correcting agent.
Further, in described step 3), the frequency of sound wave that described ultrasonic emulsification process uses is 100 ~ 400Hz.
The present embodiment weight unit used is kilogram, also can be gram;
Each raw material described in the present embodiment is technical grade;
In the present embodiment, each raw material in described can in the ratio range provided flexible combination, do not enumerate one by one at this.
Embodiment 2
The present embodiment is the improvement that the basis of embodiment 1 is carried out, part identical with embodiment 1 in the present embodiment, please refer to content disclosed in embodiment 1 to understand, content disclosed in embodiment 1 also as the content of the present embodiment, should not do repeated description herein.
The weight fraction ratio of described each raw material is:
Described upper soll layer preparation method for modifier comprises the following steps:
1) get the above-mentioned W-Gum of 65%, by W-Gum emulsification at 85 DEG C, then get described vinylformic acid and acrylamide according to above-mentioned ratio of weight and number, fully mix, when temperature drops to 50 DEG C, add described initiator, isothermal reaction 3 hours, obtains component 1;
2) get remaining W-Gum, by corn starch pasting at 85 DEG C, then add described linking agent in the W-Gum after gelatinization, obtain component 2;
3) described component 1 and component 2 are fully mixed, carry out ultrasonic emulsification 4 hours, namely obtain described upper soll layer properties-correcting agent;
In described step 3), the frequency of sound wave that described ultrasonic emulsification process uses is 300Hz.
In order to detect the performance of described properties-correcting agent, quality product detection is carried out to described properties-correcting agent.Test item comprises: outward appearance and organoleptics property (smell, color and luster, magazine), density, viscosity, pH value, solid substance, skin irritation degree, lightning, acute oral toxicity test, anti-dust effect (wind erosion rate, cured layer thickness), grafting efficiency and the water-intake rate to distilled water, and its detected result is see table 1:
In addition, carry out heavy metal content detection (total mercury, total cadmium, total plumbous, total chromium, total arsenic, formaldehyde) to described properties-correcting agent, result refers to table 2:
| Mensuration project | Detection method | Measured value |
| Total mercury μ g/L | CJ/T51-2004 | ＜0.1 |
| Total plumbous mg/L | CJ/T51-2004 | ＜0.030 |
| Total cadmium mg/L | CJ/T51-2004 | ＜0.007 |
| Total arsenic μ g/L | CJ/T51-2004 | ＜0.4 |
| Total chromium mg/L | CJ/T51-2004 | ＜0.008 |
| Formaldehyde mg/L | HJ061-2011 | ＜0.05 |
Embodiment 3
The present embodiment is the improvement that the basis of embodiment 1 is carried out, part identical with embodiment 1 in the present embodiment, please refer to content disclosed in embodiment 1 to understand, content disclosed in embodiment 1 also as the content of the present embodiment, should not do repeated description herein.
The weight fraction ratio of described each raw material is:
In order to detect the performance of described properties-correcting agent, quality product detection is carried out to described inhibitor.Test item comprises: outward appearance and organoleptics property (smell, color and luster, magazine), density, viscosity, pH value, solid substance, skin irritation degree, lightning, acute oral toxicity test, anti-dust effect (wind erosion rate, cured layer thickness), grafting efficiency and the water-intake rate to distilled water, and its detected result is see table 3:
In addition, carry out heavy metal content detection (total mercury, total cadmium, total plumbous, total chromium, total arsenic, formaldehyde) to described properties-correcting agent, result refers to table 4:
| Mensuration project | Detection method | Measured value |
| Total mercury μ g/L | CJ/T51-2004 | ＜0.0.8 |
| Total plumbous mg/L | CJ/T51-2004 | ＜0.020 |
| Total cadmium mg/L | CJ/T51-2004 | ＜0.010 |
| Total arsenic μ g/L | CJ/T51-2004 | ＜0.3 |
| Total chromium mg/L | CJ/T51-2004 | ＜0.008 |
| Formaldehyde mg/L | HJ061-2011 | ＜0.01 |
Embodiment 4
The present embodiment is the improvement that the basis of embodiment 1 is carried out, part identical with embodiment 1 in the present embodiment, please refer to content disclosed in embodiment 1 to understand, content disclosed in embodiment 1 also as the content of the present embodiment, should not do repeated description herein.
The weight fraction ratio of described each raw material is:
In order to detect the performance of described properties-correcting agent, quality product detection is carried out to described inhibitor.Test item comprises: outward appearance and organoleptics property (smell, color and luster, magazine), density, viscosity, pH value, solid substance, skin irritation degree, lightning, acute oral toxicity test, anti-dust effect (wind erosion rate, cured layer thickness), grafting efficiency and the water-intake rate to distilled water, and its detected result is see table 5:
In addition, carry out heavy metal content detection (total mercury, total cadmium, total plumbous, total chromium, total arsenic, formaldehyde) to described properties-correcting agent, result refers to table 6:
| Mensuration project | Detection method | Measured value |
| Total mercury μ g/L | CJ/T51-2004 | ＜0.1 |
| Total plumbous mg/L | CJ/T51-2004 | ＜0.030 |
| Total cadmium mg/L | CJ/T51-2004 | ＜0.005 |
| Total arsenic μ g/L | CJ/T51-2004 | ＜0.4 |
| Total chromium mg/L | CJ/T51-2004 | ＜0.010 |
| Formaldehyde mg/L | HJ061-2011 | ＜0.04 |
Claims (7)
1. a upper soll layer properties-correcting agent, is characterized in that, the raw material of described properties-correcting agent comprises W-Gum, vinylformic acid, acrylamide, initiator, linking agent and water, and the weight fraction ratio of described each raw material is:
W-Gum 40 ~ 60
Vinylformic acid 20 ~ 50
Acrylamide 10 ~ 20
Initiator 0.001 ~ 0.01
Linking agent 0.001 ~ 0.01
Water 10 ~ 30;
Preparation method comprises the following steps:
1) the above-mentioned corn starch solution of 60% ~ 75% is got, at 85 DEG C, constant temperature stirs 30Min by corn starch pasting, described vinylformic acid and acrylamide is got again according to above-mentioned ratio of weight and number, fully mix, when temperature drops to 45 DEG C ~ 55 DEG C, add described initiator, isothermal reaction 3 hours, obtains component 1;
2) get remaining W-Gum, at 85 DEG C, W-Gum constant temperature at 85 DEG C is stirred 30Min gelatinization, then add described linking agent in the W-Gum after gelatinization, obtain component 2;
3) described component 1 and component 2 are fully mixed, carry out ultrasonic emulsification 3 ~ 5 hours, namely obtain described upper soll layer properties-correcting agent.
2. upper soll layer properties-correcting agent according to claim 1, is characterized in that, described initiator is Potassium Persulphate, sodium bisulfite or both mixtures.
3. upper soll layer properties-correcting agent according to claim 1, is characterized in that, described linking agent is sodium hydroxide, potassium hydroxide or both mixtures.
4. the upper soll layer properties-correcting agent according to any one of claim 1 ~ 3, is characterized in that, the weight fraction ratio of described each raw material is:
W-Gum 40
Vinylformic acid 32
Acrylamide 12
Potassium Persulphate 0.01
Potassium hydroxide 0.01
Water 15.9.
5. the upper soll layer properties-correcting agent according to any one of claim 1 ~ 3, is characterized in that, the weight fraction ratio of described each raw material is:
W-Gum 55
Vinylformic acid 20
Acrylamide 10
Potassium Persulphate 0.001
Sodium bisulfite 0.001
Sodium hydroxide 0.01
Water 12.
6. the upper soll layer properties-correcting agent according to any one of claim 1 ~ 3, is characterized in that, the weight fraction ratio of described each raw material is:
W-Gum 50
Vinylformic acid 25
Acrylamide 10
Potassium Persulphate 0.005
Sodium bisulfite 0.005
Sodium hydroxide 0.005
Potassium hydroxide 0.005
Water 14.5.
7. upper soll layer properties-correcting agent according to claim 1, is characterized in that, in described step 3), the frequency of sound wave that described ultrasonic emulsification process uses is 100 ~ 400Hz.
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| CN201410127183.3A CN103911161B (en) | 2014-03-31 | 2014-03-31 | Soil surface modifier and preparation method thereof |
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| CN201410127183.3A CN103911161B (en) | 2014-03-31 | 2014-03-31 | Soil surface modifier and preparation method thereof |
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| CN103911161B true CN103911161B (en) | 2015-06-10 |
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| CN107828380A (en) * | 2017-11-14 | 2018-03-23 | 广东电网有限责任公司电力科学研究院 | A kind of coal stream dust suppressant and its preparation method and application |
| CN110003856B (en) * | 2019-03-06 | 2022-04-22 | 山东汉为环保科技有限公司 | Environment-friendly dust suppressant and preparation method thereof |
| CN110755969A (en) * | 2019-11-01 | 2020-02-07 | 劳美恒 | Haze remover |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339513A (en) * | 2000-08-22 | 2002-03-13 | 上海众伟生化有限公司 | High water absorption resin and its producing method |
| CN1640901A (en) * | 2004-01-09 | 2005-07-20 | 中国科学院沈阳应用生态研究所 | Method for preparing resin type water-retaining preparation |
| US7459501B2 (en) * | 2004-08-27 | 2008-12-02 | Absorbent Technologies, Inc. | Superabsorbent polymers in agricultural applications |
| CN101638457A (en) * | 2009-09-14 | 2010-02-03 | 内蒙古大学 | Method for preparing super absorbent resin containing covalent nitrogen by using potato starch as raw material |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339513A (en) * | 2000-08-22 | 2002-03-13 | 上海众伟生化有限公司 | High water absorption resin and its producing method |
| CN1640901A (en) * | 2004-01-09 | 2005-07-20 | 中国科学院沈阳应用生态研究所 | Method for preparing resin type water-retaining preparation |
| US7459501B2 (en) * | 2004-08-27 | 2008-12-02 | Absorbent Technologies, Inc. | Superabsorbent polymers in agricultural applications |
| CN101638457A (en) * | 2009-09-14 | 2010-02-03 | 内蒙古大学 | Method for preparing super absorbent resin containing covalent nitrogen by using potato starch as raw material |
Non-Patent Citations (1)
| Title |
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| 《淀粉多元接枝高效吸水剂的合成》;徐淮江等;《化学与粘合》;20000331(第3期);全文 * |
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