CN108998036A - Self-association type cationic polymer cladding humic acid fixes the sand sustained release agent and preparation method thereof - Google Patents
Self-association type cationic polymer cladding humic acid fixes the sand sustained release agent and preparation method thereof Download PDFInfo
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- CN108998036A CN108998036A CN201810828148.2A CN201810828148A CN108998036A CN 108998036 A CN108998036 A CN 108998036A CN 201810828148 A CN201810828148 A CN 201810828148A CN 108998036 A CN108998036 A CN 108998036A
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- sand
- sustained release
- humic acid
- release agent
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- 239000004576 sand Substances 0.000 title claims abstract description 66
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 48
- 238000013268 sustained release Methods 0.000 title claims abstract description 39
- 239000012730 sustained-release form Substances 0.000 title claims abstract description 39
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000004021 humic acid Substances 0.000 title claims abstract description 37
- 238000005253 cladding Methods 0.000 title claims abstract description 21
- 229920006317 cationic polymer Polymers 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 26
- 125000002091 cationic group Chemical group 0.000 claims abstract description 25
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 16
- 239000003999 initiator Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000010298 pulverizing process Methods 0.000 claims abstract description 12
- YXYZMHGSOKYZAF-UHFFFAOYSA-M [Cl-].C(C(=C)C)(=O)OCC[N+](C(C)(C)C)(C)C Chemical compound [Cl-].C(C(=C)C)(=O)OCC[N+](C(C)(C)C)(C)C YXYZMHGSOKYZAF-UHFFFAOYSA-M 0.000 claims abstract description 11
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 7
- 239000000178 monomer Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 150000001768 cations Chemical class 0.000 claims description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 8
- 239000011591 potassium Substances 0.000 claims description 8
- 229910052700 potassium Inorganic materials 0.000 claims description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 8
- 235000019394 potassium persulphate Nutrition 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 3
- -1 methacryloxypropyl Chemical group 0.000 claims description 3
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 10
- 150000001450 anions Chemical class 0.000 abstract description 2
- 230000009881 electrostatic interaction Effects 0.000 abstract description 2
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 53
- 239000008367 deionised water Substances 0.000 description 18
- 229910021641 deionized water Inorganic materials 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 10
- 235000019270 ammonium chloride Nutrition 0.000 description 6
- 239000008236 heating water Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000010792 warming Methods 0.000 description 6
- 150000003926 acrylamides Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- FZGRPBJBMUNMQH-UHFFFAOYSA-N trimethyl-$l^{3}-chlorane Chemical compound CCl(C)C FZGRPBJBMUNMQH-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- SZYJELPVAFJOGJ-UHFFFAOYSA-N trimethylamine hydrochloride Chemical compound Cl.CN(C)C SZYJELPVAFJOGJ-UHFFFAOYSA-N 0.000 description 1
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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/32—Prepolymers; Macromolecular compounds of natural origin, e.g. cellulosic materials
-
- 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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/20—Vinyl polymers
-
- 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
- C09K2105/00—Erosion prevention
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention provides self-association type cationic polymer cladding humic acid and fixes the sand sustained release agent and preparation method thereof, it is obtained using the cationic polyacrylamide cladding humic acid of three-dimensional network-like structure, specifically: using acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, butyl acrylate as monomer, crosslinking agent and initiator is added, the cationic polyacrylamide of three-dimensional network-like structure is made by micell polymerization method;Humate solution is added into cationic polyacrylamide, obtains coating, dries pulverizing obtains the sustained release agent that fixes the sand.The present invention fixes the sand, and sustained release agent institute band itself is cationic to form electrostatic interaction with grains of sand surface anion, reach purpose of fixing the sand, cationic polyacrylamide itself is tridimensional network, has hydrophilic water retention property, and humic acid has hydrophilic functional groups, it may have water retention.The ability that humic acid has the nutrient for increasing soil, improves soil.
Description
Technical field
The invention belongs to field of chemical sand fixation, are related to a kind of sand-consolidating agent for having water conservation, soil environment of fixing the sand, improve, especially
It is related to self-association type cationic polymer cladding humic acid and fixes the sand sustained release agent and preparation method thereof.
Background technique
Due to certain areas drought, lead to a large amount of desertifications, even desertification, these areas are also easy to produce sand
Dirt disaster needs to put into thus huge fund and carries out sand damage improvement.Desertification even desertificated area is mainly fine sand grain, mainly by
Silica and quartz sand composition, are substantially free of organic matter, inviscid, are not retained, not fertilizer conservation.
Existing chemical sand-fixing method is fixed the sand by the caking property between sand-consolidating agent and the grains of sand, and sand-fixing effect is poor, and
It is only pure that soil is consolidated, without being improved to soil to achieve the purpose that plant crops.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides self-association type cationic polymer cladding humic acid and fixes the sand
Sustained release agent and preparation method thereof, the purpose for realizing the water conservation to desertification soil, fixing the sand, improveing soil fertility, preparation process
Simply, low in cost, it is easy to use.
The present invention is to be achieved through the following technical solutions:
Self-association type cationic polymer cladding humic acid fixes the sand sustained release agent, poly- using the cation of three-dimensional network-like structure
Acrylamide cladding humic acid obtains, and raw material includes: acrylamide, butyl acrylate, methylacryoyloxyethyl trimethyl chlorine
Change ammonium, initiator, crosslinking agent, humate;According to mass fraction meter, 8~12 parts of acrylamide, 1~2 part of butyl acrylate,
6~10 parts of MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, 1~5 part of humate;According to mass percent meter, initiator is used
Amount is the 1~2% of acrylamide, butyl acrylate and MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride gross mass, and crosslinking agent is used
Amount is the 0.2~0.3% of acrylamide, butyl acrylate and MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride gross mass.
Preferably, initiator is potassium peroxydisulfate, crosslinking agent N, N- methylene-bisacrylamide.
Preferably, humate uses potassium humate or sodium humate.
A kind of self-association type cationic polymer cladding humic acid fixes the sand the preparation method of sustained release agent, with acrylamide, first
Base acrylyl oxy-ethyl-trimethyl salmiac, butyl acrylate are monomer, and crosslinking agent and initiator is added, passes through micell polymerization method
The cationic polyacrylamide of three-dimensional network-like structure is made;Humate solution is added into cationic polyacrylamide, obtains
To coating, dries pulverizing obtains the sustained release agent that fixes the sand.
Preferably, include the following steps:
Step 1, it dissolves, mix;Acrylamide, butyl acrylate and MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride is molten
Yu Shuizhong is uniformly mixed;
Step 2, it polymerize;Initiator is added into the solution that step 1 obtains, adds crosslinking agent, is uniformly mixed, causes poly-
Reaction is closed, the cationic polyacrylamide solution of tridimensional network is obtained;
Step 3, it coats;Humate solution is added into the cationic polyacrylamide solution of tridimensional network, makes
Cationic polyacrylamide coats humic acid molecule, obtains coating;
Step 4, dries pulverizing;It by coating drying, crushes, obtains the sustained release agent that fixes the sand.
Further, it in step 1, dissolves and is carried out under the conditions of hybrid manipulation in a nitrogen atmosphere 45~55 DEG C.
Further, in step 2, the temperature of polymerization reaction is 55~65 DEG C, and the time is 8~10h.
Further, in step 4, drying is dried for 24 hours at 80 DEG C.
Compared with prior art, the invention has the following beneficial technical effects:
Hydrophobic associating cationic polymer overmold humic acid of the invention fixes the sand sustained release agent, using three-dimensional network-like structure
Cationic polyacrylamide cladding humic acid obtains, and passes through sustained release agent institute band cation itself and the grains of sand surface anion shape of fixing the sand
At electrostatic interaction, thus reach purpose of fixing the sand, it is more preferable compared to by simple cementation sand-fixing effect.Cationic polyacrylamide
Itself it is tridimensional network, there is certain hydrophilic, water retention property, and humic acid itself has some hydrophilic functional groups,
Therefore gained fixes the sand sustained release agent with water retention.And the ability that humic acid has the nutrient for increasing soil, improves soil, have
Function of fertilizer retention, therefore it is suitable for application of fixing the sand, cationic polyacrylamide coats humic acid by it with certain fertilizer properties.Due to
The resin layer that cationic polyacrylamide is formed is three-dimensional network shape, has porous structure, can have to humic acid certain
Slow releasing function, humic acid slow release play the role of improveing soil.
Preparation method of the invention utilizes coating technology, and acrylamide is made first to carry out polymerizeing and then wrap to humic acid
It covers.Simple process and low cost.
Detailed description of the invention
Fig. 1 is the preparation process schematic diagram of the sustained release agent of the invention that fixes the sand.
Fig. 2 is the schematic diagram that fixes the sand of the sustained release agent of the invention that fixes the sand.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Self-association type cationic polymer of the present invention cladding humic acid fixes the sand sustained release agent, with acrylamide (AM), first
Base acrylyl oxy-ethyl-trimethyl salmiac (DMC), butyl acrylate (BA) are monomer, using water as decentralized medium, using initiation
AM/DMC/BA terpolymer is made by micell polymerization method in agent and crosslinking agent, and the cation for forming three-dimensional network-like structure is poly-
Acrylamide solution takes water as a solvent using humate as solute, prepares humate solution, and the polymer allowed is to corruption
It grows acid molecule to be coated, obtained coating is finally subjected to dries pulverizing, can must fix the sand sustained release agent.Preparation process such as Fig. 1
It is shown.
Following steps are specifically included, all substances are mass fraction:
(1) it dissolves, mix
Ionized water, acrylamide, butyl acrylate, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride are removed, is added three mouthfuls
In flask, heating water bath leads to nitrogen, is stirred, is warming up to 45-55 DEG C;
(2) it polymerize
After 15min is sufficiently stirred in step (1), the initiator with deionized water dissolving is slowly added dropwise, increases temperature to 55
~65 DEG C, the crosslinking agent for using deionized water dissolving is then added, and stir and mix them thoroughly, reacts 8-10h to get three dimensional network
The cationic polyacrylamide solution of shape structure.
(3) it coats
After the completion of the above process, the humate with deionized water dissolving is added dropwise to it, makes cationic polyacrylamide
Humic acid molecule is coated, coating is obtained.
(4) dries pulverizing
After the completion of above-mentioned cladding process, takes out coating and dried at 80 DEG C for 24 hours, taking-up is crushed to get fixing the sand
Sustained release agent.
In step (1), 8~12 parts of acrylamide, 1~2 part of butyl acrylate, methylacryoyloxyethyl trimethyl ammonia chloride
6~10 parts of ammonium, 10~50 parts of humate melt, wherein humate is 1~5 part in humate melt.Initiator accounts for list
The 1~2% of body gross mass, crosslinking agent account for the 0.2~0.3% of monomer gross mass.
The present invention is using potassium peroxydisulfate as initiator, and with N, N- methylene-bisacrylamide is crosslinking agent, and humate uses
Potassium humate or sodium humate.
Specific embodiment is as follows.
Embodiment 1
(1) it dissolves, mix
Remove 80 parts, 8 parts acrylamides of ionized water, 1 part of butyl acrylate, 6 parts of methylacryoyloxyethyl trimethyl chlorine
Change ammonium, be added in three-necked flask, heating water bath, leads to nitrogen, be stirred, be warming up to 45 DEG C.
(2) it polymerize
After 15min is sufficiently stirred in step (1), 0.15 part of potassium peroxydisulfate with 30 parts of deionized water dissolvings is slowly added dropwise,
Increase temperature to 65 DEG C, then use the N of 20 parts of deionized water dissolvings, 0.03 part of N- methylene-bisacrylamide, and stirring make it
It is sufficiently mixed, reacts 8h to get the cationic polyacrylamide solution of tridimensional network.
(3) it coats
After the completion of the above process, 3 parts of potassium humate with 7 parts of deionized water dissolvings are added dropwise to it, make cation poly- third
Acrylamide coats humic acid molecule, obtains coating.
(4) dries pulverizing
After above-mentioned be covered to complete, take out coating and dried at 80 DEG C for 24 hours, taking-up is crushed to get the sustained release that fixes the sand
Agent.
Embodiment 2
(1) it dissolves, mix
Remove 80 parts, 10 parts acrylamides of ionized water, 1.5 parts of butyl acrylates, 8 parts of methylacryoyloxyethyl trimethyls
Ammonium chloride is added in three-necked flask, heating water bath, leads to nitrogen, is stirred, is warming up to 50 DEG C.
(2) it polymerize
After 15min is sufficiently stirred in step (1), 0.3 part of potassium peroxydisulfate with 30 parts of deionized water dissolvings is slowly added dropwise, rises
High-temperature is to 60 DEG C, then with the N of 20 parts of deionized water dissolvings, 0.049 part of N- methylene-bisacrylamide, and stirring fills it
Divide mixing, reacts 9h to get the cationic polyacrylamide solution of tridimensional network.
(3) it coats
After the completion of the above process, 3 parts of potassium humate with 7 parts of deionized water dissolvings are added dropwise to it, are cations poly- third
Acrylamide coats humic acid molecule, obtains coating.
(4) dries pulverizing
After above-mentioned be covered to complete, take out coating and dried at 80 DEG C for 24 hours, taking-up is crushed to get the sustained release that fixes the sand
Agent.
Embodiment 3
(1) it dissolves, mix
Remove 80 parts, 12 parts acrylamides of ionized water, 2 parts of butyl acrylates, 10 parts of methylacryoyloxyethyl trimethyls
Ammonium chloride is added in three-necked flask, heating water bath, leads to nitrogen, is stirred, is warming up to 55 DEG C.
(2) it polymerize
After 15min is sufficiently stirred in step (1), 0.48 part of potassium peroxydisulfate with 30 parts of deionized water dissolvings is slowly added dropwise,
Increase temperature to 55 DEG C, then use the N of 20 parts of deionized water dissolvings, 0.072 part of N- methylene-bisacrylamide, and stirring make it
It is sufficiently mixed, reacts 10h to get the cationic polyacrylamide solution of tridimensional network.
(3) it coats
After the completion of the above process, 3 parts of potassium humate with 7 parts of deionized water dissolvings are added dropwise to it, are cations poly- third
Acrylamide coats humic acid molecule, obtains coating.
(4) dries pulverizing
After above-mentioned be covered to complete, take out coating and dried at 80 DEG C for 24 hours, taking-up is crushed to get the sustained release that fixes the sand
Agent.
Embodiment 4
(1) it dissolves, mix
Remove 80 parts, 10 parts acrylamides of ionized water, 1.5 parts of butyl acrylates, 8 parts of methylacryoyloxyethyl trimethyls
Ammonium chloride is added in three-necked flask, heating water bath, leads to nitrogen, is stirred, is warming up to 50 DEG C.
(2) it polymerize
After 15min is sufficiently stirred in step (1), 0.3 part of potassium peroxydisulfate with 30 parts of deionized water dissolvings is slowly added dropwise, rises
High-temperature is to 60 DEG C, then with the N of 20 parts of deionized water dissolvings, 0.049 part of N- methylene-bisacrylamide, and stirring fills it
Divide mixing, reacts 9h to get the cationic polyacrylamide solution of tridimensional network.
(3) it coats
After the completion of the above process, 1 part of potassium humate with 9 parts of deionized water dissolvings is added dropwise to it, is cation poly- third
Acrylamide coats humic acid molecule, obtains coating.
(4) dries pulverizing
After above-mentioned be covered to complete, take out coating and dried at 80 DEG C for 24 hours, taking-up is crushed to get the sustained release that fixes the sand
Agent.
Embodiment 5
(1) it dissolves, mix
Remove 80 parts, 10 parts acrylamides of ionized water, 1.5 parts of butyl acrylates, 8 parts of methylacryoyloxyethyl trimethyls
Ammonium chloride is added in three-necked flask, heating water bath, leads to nitrogen, is stirred, is warming up to 50 DEG C.
(2) it polymerize
After 15min is sufficiently stirred in step (1), 0.3 part of potassium peroxydisulfate with 30 parts of deionized water dissolvings is slowly added dropwise, rises
High-temperature is to 60 DEG C, then with the N of 20 parts of deionized water dissolvings, 0.049 part of N- methylene-bisacrylamide, and stirring fills it
Divide mixing, reacts 9h to get the cationic polyacrylamide solution of tridimensional network.
(3) it coats
After the completion of the above process, 5 parts of potassium humate with 5 parts of deionized water dissolvings are added dropwise to it, are cations poly- third
Acrylamide coats humic acid molecule, obtains coating.
(4) dries pulverizing
After above-mentioned be covered to complete, take out coating and dried at 80 DEG C for 24 hours, taking-up is crushed to get the sustained release that fixes the sand
Agent.
Macromolecular sand-fixation sustained release agent synthesized by the present invention, i.e., sand-consolidating agent of the invention are a kind of high molecular polymers, this
Sand-consolidating agent matches reaction monomers using the method for micellar copolymerization, and initiator amount, the conditions such as dosage of crosslinking agent are optimized,
Preferably synthesis route has been obtained, the physico-chemical property of sand-consolidating agent, and answering to the sustained release agent that fixes the sand of embodiment 1-3 are characterized
It is tested with performance.The sustained release agent of the present invention that fixes the sand principle of fixing the sand is as shown in Figure 2.
(1) compressive property
By coarse sand the screen to filtrate, choose the grains of sand of the partial size between 0.3mm to 0.45mm, weigh grains of sand 250g, water with
Fix the sand the mixture 20g of sustained release agent, and mixture is uniformly mixed with the grains of sand, and addition specification is high 4.0cm, the mould of diameter 7.0cm
In tool, compacting is dry later up to dust devil model, and dust devil model obtained is put into material mechanical test machine and is compressed, directly
Broken, the test speed 5mm/min to husky mould.As shown in table 1 below.
Table 1 indicates the compression strength that sand-consolidating agent fixes the sand
(2) wind erosion-resistance performance
By coarse sand the screen to filtrate, the grains of sand of the partial size between 0.3mm to 0.45mm are chosen, the 1000g grains of sand is taken to pass through throwing
Funnel is uniformly added in surface plate, the consistent sand ionization formula of shape is obtained, according to 1L/m2Fountain height by various concentration
Sand-consolidating agent (water and the mixture of sustained release agent of fixing the sand) be sprayed on sand ionization formula, after waiting formation bonding course to be dried, electricity consumption
Dynamic blower natural wind simulating blows sand ionization formula from front, sees whether bonding course is destroyed, and sand drift quality is recorded after half an hour.It is as follows
Table 2
Table 2. indicates the weather-proof intensity that sand-consolidating agent fixes the sand
Claims (8)
- The sustained release agent 1. self-association type cationic polymer cladding humic acid fixes the sand, which is characterized in that use three-dimensional network-like structure Cationic polyacrylamide cladding humic acid obtain, raw material includes: acrylamide, butyl acrylate, methacryloxypropyl second Base trimethyl ammonium chloride, initiator, crosslinking agent, humate;According to mass fraction meter, 8~12 parts of acrylamide, acrylic acid fourth 1~2 part of ester, 6~10 parts of MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, 1~5 part of humate;According to mass percent meter, Initiator amount is the 1~2% of acrylamide, butyl acrylate and MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride gross mass, Dosage of crosslinking agent be acrylamide, butyl acrylate and MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride gross mass 0.2~ 0.3%.
- The sustained release agent 2. self-association type cationic polymer cladding humic acid according to claim 1 fixes the sand, which is characterized in that Initiator is potassium peroxydisulfate, crosslinking agent N, N- methylene-bisacrylamide.
- The sustained release agent 3. self-association type cationic polymer cladding humic acid according to claim 1 fixes the sand, which is characterized in that Humate uses potassium humate or sodium humate.
- The system of sustained release agent 4. a kind of described in any item self-association type cationic polymer cladding humic acid of claim 1-3 fix the sand Preparation Method, which is characterized in that using acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, butyl acrylate as monomer, add Enter crosslinking agent and initiator, the cationic polyacrylamide of three-dimensional network-like structure is made by micell polymerization method;To cation Humate solution is added in polyacrylamide, obtains coating, dries pulverizing obtains the sustained release agent that fixes the sand.
- The preparation method of sustained release agent 5. self-association type cationic polymer cladding humic acid according to claim 4 fixes the sand, It is characterized by comprising the following steps:Step 1, it dissolves, mix;Acrylamide, butyl acrylate and MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride are dissolved in water In, it is uniformly mixed;Step 2, it polymerize;Initiator is added into the solution that step 1 obtains, adds crosslinking agent, is uniformly mixed, it is anti-to cause polymerization It answers, obtains the cationic polyacrylamide solution of tridimensional network;Step 3, it coats;Into the cationic polyacrylamide solution of tridimensional network be added humate solution, make sun from Sub- polyacrylamide coats humic acid molecule, obtains coating;Step 4, dries pulverizing;It by coating drying, crushes, obtains the sustained release agent that fixes the sand.
- The preparation method of sustained release agent 6. self-association type cationic polymer cladding humic acid according to claim 5 fixes the sand, It is characterized in that, dissolving and being carried out under the conditions of hybrid manipulation in a nitrogen atmosphere 45~55 DEG C in step 1.
- The preparation method of sustained release agent 7. self-association type cationic polymer cladding humic acid according to claim 5 fixes the sand, It is characterized in that, the temperature of polymerization reaction is 55~65 DEG C in step 2, the time is 8~10h.
- The preparation method of sustained release agent 8. self-association type cationic polymer cladding humic acid according to claim 5 fixes the sand, It is characterized in that, drying is dried for 24 hours at 80 DEG C in step 4.
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