CN109609094B - Encrusting agent and preparation method and application thereof - Google Patents
Encrusting agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN109609094B CN109609094B CN201910049806.2A CN201910049806A CN109609094B CN 109609094 B CN109609094 B CN 109609094B CN 201910049806 A CN201910049806 A CN 201910049806A CN 109609094 B CN109609094 B CN 109609094B
- Authority
- CN
- China
- Prior art keywords
- encrusting agent
- encrusting
- cellulose
- raw materials
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
Abstract
The invention discloses a encrusting agent and a preparation method and application thereof. The encrusting agent is prepared by adopting modified cellulose, modified starch, surfactant, polyacrylamide and glycerol and reasonably proportioning raw materials, tests show that the encrusting agent is mixed with water and then sprayed on the surface of coal powder, and a protective layer is bonded on the surface of the coal powder after water permeates and volatilizes to prevent the dust of the coal powder, so that the dust suppression efficiency of the encrusting agent is more than 90 percent. Meanwhile, the encrusting agent has good moisture retention performance, the moisture absorption rate is more than 15%, the raw materials are environment-friendly, and the biodegradability is more than 99%.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a encrusting agent as well as a preparation method and application thereof.
Background
With the rapid development of economy, the problem of environmental pollution is increasingly prominent, wherein suspended particles are an important cause of environmental pollution, and a large amount of raised dust of construction sites and bare lands serving as one of suspended particle sources also becomes a key point for preventing and controlling air pollution. The current treatment measures are mainly that a dust screen covers bare land, fog gun sprays and inorganic salt dust suppressant is used.
The dust suppression effect of the dust screen after covering is not obvious because the holes of the screen are far larger than dust particles. Moreover, the quality of the dust screens on the market is uneven, organic volatile matters are easily generated in the manufacturing and processing process, and the materials lack biodegradation capacity. Fog gun spraying can increase air and soil surface humidity and thereby reduce raise dust, however after moisture evaporates and dries, the raise dust problem can reappear. Inorganic salt dust depressants (magnesium chloride and calcium chloride) are low in cost and widely used as road dust depressants, but the adverse consequences of soil salinization, pavement road corrosion and the like can be caused by overuse of the inorganic salt dust depressants.
Especially for the coal dust which is easy to generate dust in the transportation and storage processes, the dust suppression means can not obtain ideal dust suppression effect.
Disclosure of Invention
Therefore, the invention aims to solve the defect of low dust suppression efficiency of the existing dust suppression means, and further provides a encrusting agent with high dust suppression efficiency, and a preparation method and application thereof.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the invention provides a encrusting agent which comprises the following raw materials in parts by weight:
preferably, the feed comprises the following raw materials in parts by weight:
preferably, the feed comprises the following raw materials in parts by weight:
further, the modified cellulose is carboxylated cellulose and/or hydroxylated cellulose;
the modified starch is carboxylated starch and/or hydroxylated starch.
Preferably, the modified cellulose is carboxymethyl cellulose and/or hydroxymethyl cellulose; more preferably, the modified cellulose is a cellulose acetate/cellulose acetate copolymer having a mass ratio of 1: (1-2) the mixture of carboxymethyl cellulose and hydroxymethyl cellulose;
the modified starch is carboxymethyl starch and/or hydroxymethyl starch; more preferably, the modified starch is a starch with a mass ratio of 1: (3-4) a mixture of carboxymethyl starch and hydroxymethyl starch.
Further, the surfactant is sodium dodecyl benzene sulfonate and/or fatty alcohol-polyoxyethylene ether. Preferably, the surfactant is a mixture of 1: (4-6) a mixture of sodium dodecylbenzenesulfonate and fatty alcohol-polyoxyethylene ether.
Further, the number average molecular weight of the polyacrylamide is 500-2000 ten thousand.
Furthermore, the invention also provides a preparation method of the encrusting agent, which comprises the following steps: the raw materials are mixed according to a certain proportion and stirred to prepare the encrusting agent.
Further, the stirring speed of the stirring is 500-1500 rpm, the temperature is 20-30 ℃, and the time is 1-3 h.
In addition, the invention also provides application of the encrusting agent in dust suppression products, wherein the encrusting agent and water are mixed according to the mass ratio of (0.8-1.2): 100, and spraying the mixture on the surface of a dust-proof object.
Compared with the prior art, the invention has the following beneficial effects:
(1) the encrusting agent provided by the invention is prepared by adopting modified cellulose, modified starch, surfactant, polyacrylamide and glycerol and reasonably proportioning the raw materials, and tests show that the encrusting agent is mixed with water and then sprayed on the surface of coal powder, and a protective layer is bonded on the surface of the coal powder after the water is permeated and volatilized, so that the dust flying of the coal powder is prevented, and the dust suppression efficiency is higher than 90%. Meanwhile, the encrusting agent has good moisture retention performance, the moisture absorption rate is more than 15%, the raw materials are environment-friendly, and the biodegradability is more than 99%.
(2) The crusting agent provided by the invention can further improve the dust suppression efficiency and the moisture absorption rate of the crusting agent by optimizing the mixture ratio of the raw materials; by selecting the modified cellulose and the modified starch, the compatibility between the modified cellulose and other raw materials can be improved, and the forming of a compact protective layer by the encrusting agent is facilitated, so that the dust suppression efficiency of the encrusting agent is improved.
(3) The preparation method of the encrusting agent provided by the invention has the advantages that the preparation process is simple, the raw materials are uniformly mixed by optimizing the stirring speed, the temperature and the time, the stability of the encrusting agent is ensured, and the dust suppression efficiency and the dust suppression durability of the encrusting agent are improved.
Detailed Description
The technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 18g of modified cellulose, 60g of modified starch, 4g of surfactant, 3.5g of polyacrylamide and 10g of glycerol, wherein the modified cellulose is carboxymethyl cellulose; the modified starch is carboxymethyl starch; the surfactant is sodium dodecyl benzene sulfonate; the number average molecular weight of the polyacrylamide is 1000 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 2 hours at a stirring speed of 1000rpm and a temperature of 25 ℃ to prepare the encrusting agent.
Example 2
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 15g of modified cellulose, 70g of modified starch, 3g of surfactant, 4g of polyacrylamide and 8g of glycerol, wherein the modified cellulose is hydroxymethyl cellulose; the modified starch is carboxymethyl starch; the surfactant is fatty alcohol-polyoxyethylene ether; the number average molecular weight of the polyacrylamide is 500 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 1h at a stirring speed of 500rpm and a temperature of 30 ℃ to prepare the encrusting agent.
Example 3
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 20g of modified cellulose, 50g of modified starch, 5g of surfactant, 3g of polyacrylamide and 12g of glycerol, wherein the modified cellulose is carboxymethyl cellulose; the modified starch is hydroxymethyl starch; the surfactant is sodium dodecyl benzene sulfonate; the number average molecular weight of the polyacrylamide is 2000 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 3 hours at a stirring speed of 1500rpm and a temperature of 20 ℃ to prepare the encrusting agent.
Example 4
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 5g of modified cellulose, 90g of modified starch, 0.5g of surfactant, 5g of polyacrylamide and 5g of glycerol, wherein the modified cellulose is carboxymethyl cellulose; the modified starch is carboxymethyl starch; the surfactant is sodium dodecyl benzene sulfonate; the number average molecular weight of the polyacrylamide is 1500 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to the proportion and stirred for 1.5h at the stirring speed of 1200rpm and the temperature of 28 ℃ to prepare the encrusting agent.
Example 5
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 30g of modified cellulose, 30g of modified starch, 8g of surfactant, 1g of polyacrylamide and 15g of glycerol, wherein the modified cellulose is hydroxymethyl cellulose; the modified starch is carboxymethyl starch; the surfactant is fatty alcohol-polyoxyethylene ether; the number average molecular weight of the polyacrylamide is 800 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 2.8 hours at a stirring speed of 900rpm and a temperature of 22 ℃ to prepare the encrusting agent.
Example 6
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 15g of modified cellulose, 70g of modified starch, 3g of surfactant, 4g of polyacrylamide and 8g of glycerol, wherein the mass ratio of the modified cellulose to the modified starch is 1: 1.5 of a mixture of carboxymethyl cellulose and hydroxymethyl cellulose; the modified starch is carboxymethyl starch; the surfactant is fatty alcohol-polyoxyethylene ether; the number average molecular weight of the polyacrylamide is 500 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 1h at a stirring speed of 500rpm and a temperature of 30 ℃ to prepare the encrusting agent.
Example 7
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 20g of modified cellulose, 50g of modified starch, 5g of surfactant, 3g of polyacrylamide and 12g of glycerol, wherein the modified cellulose is carboxymethyl cellulose; the modified starch is prepared from the following raw materials in a mass ratio of 1: 3.5 of a mixture of carboxymethyl starch and hydroxymethyl starch; the surfactant is sodium dodecyl benzene sulfonate; the number average molecular weight of the polyacrylamide is 2000 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 3 hours at a stirring speed of 1500rpm and a temperature of 20 ℃ to prepare the encrusting agent.
Example 8
The embodiment provides a encrusting agent and a preparation method thereof. The encrusting agent consists of 18g of modified cellulose, 60g of modified starch, 4g of surfactant, 3.5g of polyacrylamide and 10g of glycerol, wherein the modified cellulose is carboxymethyl cellulose; the modified starch is carboxymethyl starch; the surfactant is prepared from the following components in a mass ratio of 1: 5, a mixture of sodium dodecyl benzene sulfonate and fatty alcohol-polyoxyethylene ether; the number average molecular weight of the polyacrylamide is 1000 ten thousand;
the preparation method of the encrusting agent comprises the following steps: the raw materials are mixed according to a proportion and stirred for 2 hours at a stirring speed of 1000rpm and a temperature of 25 ℃ to prepare the encrusting agent.
Comparative example 1
This comparative example provides a encrusting agent and a method of making the same. The only difference from example 1 is that: in this comparative example, starch was added directly, without modification.
Comparative example 2
This comparative example provides a encrusting agent and a method of making the same. The only difference from example 1 is that: in this comparative example, cellulose was added directly, with the cellulose unmodified.
Test example 1
The dust suppression efficiency of the crusting agent prepared in each of the above examples and comparative examples was measured, and the dust suppression efficiency was tested according to the national standard GB5748, and the corresponding test results are shown in table 1 below:
TABLE 1 dust suppression efficiency of encrusting agent
From table 1 it can be seen that: the encrusting agent disclosed by the invention has high dust suppression efficiency and strong environmental adaptability, and can meet dust suppression requirements in different fields.
Test example 2
The moisture absorption rates of the encrustation agents prepared in the above examples and comparative examples were measured, and the moisture absorption rates were measured by the following procedure: firstly, mixing the encrusting agent and water according to a mass ratio of 1:100, then, adjusting the pH value to 7 after mixing, spraying wine onto a glass dish filled with coal dust (the particle size of the coal dust is 1-5 mm), then, directly placing the glass dish in a natural environment, and observing the change conditions of the moisture absorption rate of a sample, the temperature and humidity of the environment, hardening and the like for a long time. The mass of the sample is weighed every fixed period of time and recorded accordingly. The moisture absorption rate is defined as: the moisture absorption rate of the sample is ═ mass of wet sample-mass of dry sample after 60 days of observation)/mass of dry sample after 60 days of observation ] × 100%;
the corresponding test results are shown in table 2 below:
TABLE 2 moisture absorption Rate of encrusting agent
From table 2, it can be seen that: the encrusting agent has high moisture absorption rate, so that dust can be suppressed for a long time.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The encrusting agent consists of the following raw materials in parts by weight:
the modified starch is prepared from the following raw materials in a mass ratio of 1: (3-4) a mixture of carboxymethyl starch and hydroxymethyl starch.
2. The encrusting agent according to claim 1, which is prepared from the following raw materials in parts by weight:
15-20 parts of modified cellulose
50-70 parts of modified starch
3-5 parts of surfactant
3-4 parts of polyacrylamide
8-12 parts of glycerol.
3. The encrusting agent according to claim 2, wherein the encrusting agent comprises the following raw materials in parts by weight:
4. the encrusting agent according to any one of claims 1 to 3, wherein the modified cellulose is carboxylated cellulose and/or hydroxylated cellulose.
5. The encrusting agent according to claim 4, wherein the modified cellulose is carboxymethyl cellulose and/or hydroxymethyl cellulose.
6. The encrusting agent according to claim 1, wherein the surfactant is sodium dodecylbenzenesulfonate and/or fatty alcohol-polyoxyethylene ether.
7. The encrusting agent as recited in claim 1, wherein the polyacrylamide has a number average molecular weight of 500-2000 ten thousand.
8. A process for the preparation of a encrusting agent according to any one of claims 1 to 7, comprising the steps of: the raw materials are mixed according to a certain proportion and stirred to prepare the encrusting agent.
9. The preparation method according to claim 8, wherein the stirring speed is 500-1500 rpm, the temperature is 20-30 ℃, and the time is 1-3 h.
10. Use of a cruster as claimed in any one of claims 1 to 7 in a dust suppression product, wherein the cruster is mixed with water in a mass ratio of (0.8 to 1.2): 100, and spraying the mixture on the surface of a dust-proof object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049806.2A CN109609094B (en) | 2019-01-18 | 2019-01-18 | Encrusting agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049806.2A CN109609094B (en) | 2019-01-18 | 2019-01-18 | Encrusting agent and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109609094A CN109609094A (en) | 2019-04-12 |
| CN109609094B true CN109609094B (en) | 2021-11-09 |
Family
ID=66017874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049806.2A Active CN109609094B (en) | 2019-01-18 | 2019-01-18 | Encrusting agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109609094B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814272B (en) * | 2019-11-08 | 2022-01-04 | 姚立猛 | Environment-friendly mixed soil for wet mold casting and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965834A (en) * | 2013-01-28 | 2014-08-06 | 日照凯格环保科技有限公司 | Road surface dust suppressant and preparation method thereof |
| CN103497736B (en) * | 2013-08-16 | 2014-10-22 | 北京安平联合环保科技有限公司 | Dust inhibiting agent used during railway transportation process of powdered materials and preparation method thereof |
| CN103525368B (en) * | 2013-10-18 | 2015-04-15 | 王夕刚 | Dust suppressant, application and preparation method thereof, and method for suppressing coking coal powder transportation dust |
| CN103540293B (en) * | 2013-10-18 | 2015-03-04 | 王夕刚 | Dust suppressant, and use and preparation method thereof, as well as method for suppressing dust during transportation of ironstone |
| CN107955583B (en) * | 2017-03-27 | 2020-05-01 | 日东（青岛）研究院有限公司 | Efficient environment-friendly dust suppressant and preparation method and application thereof |
-
2019
- 2019-01-18 CN CN201910049806.2A patent/CN109609094B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109609094A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108192569B (en) | Dust suppressant and preparation method thereof, application method and application | |
| CN108192570A (en) | Dust suppressant and preparation method thereof, application method and application | |
| CN104004525A (en) | Soil body stabilizer | |
| CN109609094B (en) | Encrusting agent and preparation method and application thereof | |
| CN104449578A (en) | Environment-friendly dust suppressant and preparation method thereof | |
| CN104030594B (en) | A kind of nickel slag manganese dreg concrete composite blend and preparation method thereof | |
| CN105038709A (en) | Windproof dust inhibitor used in coal yard and preparation method thereof | |
| CN102226088A (en) | Polyurethane-based ecological sand-fixing agent and preparation method thereof | |
| KR102284172B1 (en) | Surface hardner composition for inhibiting scattering dust and method for manufacturing the same | |
| CN1270995C (en) | Water-preserving agent for cement | |
| CN101805615B (en) | Vegetation soil stabilizer for soil slope and preparation method thereof | |
| CN111961443A (en) | Ecological environment-friendly dust-settling agent and preparation method and application method thereof | |
| CN103271025A (en) | Anilofos-pyrazosulfuron ethyl water surface diffusion agent and preparation method thereof | |
| CN102533275A (en) | Natural gum adhesive for ecological restoration and application thereof | |
| CN104322334B (en) | A kind of warm cloud catalyst, preparation method and applications | |
| CN114015413B (en) | Rain erosion resistant dust suppressant for building construction and preparation method and application thereof | |
| CN106085360A (en) | The most biodegradable a kind of preparation method fixing the sand dust suppressant | |
| CN114561189B (en) | Lignin phenolic resin dust suppressant and preparation method thereof | |
| KR102629194B1 (en) | Dust suppressant using cross-linked eco-friendly natural polymer and polysaccharide, and method for manufacturing the same | |
| CN106867458B (en) | Chemical film covering agent with surface heavy metal chelating and curing functions | |
| CN108570308A (en) | A kind of preparation method of water proof type coal dust depressor | |
| CN111944487A (en) | Soil surface moisturizing dust suppressant for building construction and preparation method thereof | |
| CN111909660A (en) | Soil surface moisturizing and dust suppression agent and preparation method thereof | |
| CN111018442A (en) | Odorless anti-formaldehyde jade powder waterproof slurry and preparation method thereof | |
| CN113480977A (en) | Composite low-temperature-resistant moisturizing dust suppressant and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |