CN101143938A - A kind of preparation method of cross-linked foaming water retention resin for plant cultivation - Google Patents
A kind of preparation method of cross-linked foaming water retention resin for plant cultivation Download PDFInfo
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- CN101143938A CN101143938A CNA2007100094507A CN200710009450A CN101143938A CN 101143938 A CN101143938 A CN 101143938A CN A2007100094507 A CNA2007100094507 A CN A2007100094507A CN 200710009450 A CN200710009450 A CN 200710009450A CN 101143938 A CN101143938 A CN 101143938A
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- 239000011347 resin Substances 0.000 title claims abstract description 38
- 229920005989 resin Polymers 0.000 title claims abstract description 38
- 238000005187 foaming Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 20
- 238000004132 cross linking Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 15
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 14
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 12
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- 229960001866 silicon dioxide Drugs 0.000 claims description 12
- HSVFKFNNMLUVEY-UHFFFAOYSA-N sulfuryl diazide Chemical compound [N-]=[N+]=NS(=O)(=O)N=[N+]=[N-] HSVFKFNNMLUVEY-UHFFFAOYSA-N 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000012153 distilled water Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 6
- 239000011236 particulate material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005453 pelletization Methods 0.000 abstract description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- 239000004925 Acrylic resin Substances 0.000 abstract 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- XMRSVLCCIJUKDQ-UHFFFAOYSA-N n-diazobenzenesulfonamide Chemical compound [N-]=[N+]=NS(=O)(=O)C1=CC=CC=C1 XMRSVLCCIJUKDQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 229920005614 potassium polyacrylate Polymers 0.000 abstract 1
- 229920002125 Sokalan® Polymers 0.000 description 7
- 239000004584 polyacrylic acid Substances 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 206010016807 Fluid retention Diseases 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000009313 farming Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- -1 silt Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- ASLVVDVJYDCLPC-UHFFFAOYSA-N 2-sulfamoylbenzenesulfonic acid Chemical compound NS(=O)(=O)C1=CC=CC=C1S(O)(=O)=O ASLVVDVJYDCLPC-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004160 Ammonium persulphate Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004159 Potassium persulphate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- WWAZUUULUNZNFE-UHFFFAOYSA-N [Na].NC(=O)C=C Chemical compound [Na].NC(=O)C=C WWAZUUULUNZNFE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 235000019395 ammonium persulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- CMUOJBJRZUHRMU-UHFFFAOYSA-N nitrourea Chemical compound NC(=O)N[N+]([O-])=O CMUOJBJRZUHRMU-UHFFFAOYSA-N 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002265 redox agent Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
本发明涉及了一种植物栽培用交联发泡保水树脂的制备方法，它是以23～28质量份的氢氧化钾和63～70质量份的丙烯酸乳液为基本原料，添加5～10质量份的二氧化硅、0.05～0.12质量份的环氧氯丙烷、0.3～0.6质量份的对苯磺酰叠氮、0.4～0.8质量份的亚硫酸氢钠，在控制一定的温度和搅拌的速度下，通过中和化学反应、引发聚合、交联发泡、挤出切粒、沸腾床干燥、冷却包装工艺加工而成。本制备方法生产的交联发泡保水树脂，其网孔结构疏松、孔径和比表面积增大，与非发泡聚丙烯酸钾树脂相比，密度降低15～18％，吸泥水(5％泥土)倍率提高38～45％，保泥水率(5％泥土)提高16～20％，特别适用于农、林业植物栽培。The invention relates to a method for preparing a cross-linked foaming water-retaining resin for plant cultivation, which uses 23-28 parts by mass of potassium hydroxide and 63-70 parts by mass of acrylic acid emulsion as basic raw materials, and adds 5-10 parts by mass of Silica, 0.05-0.12 parts by mass of epichlorohydrin, 0.3-0.6 parts by mass of p-benzenesulfonyl azide, 0.4-0.8 parts by mass of sodium bisulfite, under a certain temperature and stirring speed , processed through neutralization chemical reaction, polymerization initiation, cross-linking and foaming, extrusion pelletizing, fluidized bed drying, and cooling packaging. The cross-linked foaming water-retaining resin produced by this preparation method has loose mesh structure, increased aperture and specific surface area, and compared with non-foaming potassium polyacrylate resin, the density decreases by 15-18%, and it absorbs mud water (5% soil) The magnification rate is increased by 38-45%, and the mud retention rate (5% soil) is increased by 16-20%, which is especially suitable for agricultural and forestry plant cultivation.
Description
Technical field
The present invention relates to the preparation method of water-retaining resin, a kind of specifically plant growing preparation method of cross-linking foaming water-retaining resin.
Background technology
The polymer water-retaining resin is the lightly crosslinked hydrophilic high molecular polymer of a class, can absorb the hundred times of own wt and even thousands of times distilled water, and water retention capacity is strong.Wherein, polyacrylic acid salt resin (comprising polyacrylamide, polyacrylic acid potassium, sodium polyacrylate) has that water absorbent rate is higher, absorption speed is fast, release characteristics such as water speed is slow, water retention property is good, use in fields such as farming, forestry plant cultivation, keeping crop seedling from drought, desertification control more and more, play an important role for drought and water shortage area and the geographic arviculture of Desertification, afforestation.Yet because the densification of polyacrylic acid salt resin in-house network pore structure, the aperture is small, and the water in the soil is being mingled with materials such as silt, mineral substance, fertilizer, in absorbing water, release the water process repeatedly, easily causes mesh to stop up, cause water absorbent rate to descend significantly, water retention is on the low side.According to relevant researchist's test, the polyacrylic acid salt resin of agroforestry use at present, inhaling muddy water (containing 5% earth) multiplying power only is 72～153g/g, protecting the muddy water rate is 53～70%.For this reason, farming, forestry plantation family adopt the way that increases resin demand to remedy usually, cause planting cost higher, and the big area that has influenced water-retaining resin is promoted.In recent years, research unit and manufacturing enterprise adopt the whole bag of tricks research and development modified polypropene hydrochlorate water-retaining resin both at home and abroad, to improve suction muddy water multiplying power and the water retention of resin in soil, reduce use cost.As: with starch, Mierocrystalline cellulose, vinylformic acid and polyvinyl alcohol is raw material, adopts microwave radiation, the synthetic water-retaining resin of inverse suspension polymerization method; And for example: with the methylene-bisacrylamide is linking agent, and ammonium persulphate and sodium bisulfite are redox agent, adopts the synthetic kaolin composite polypropylene acid of water solution polymerization process sodium-acrylamide composite water conservation resin; For another example: with vinylformic acid and magnesium hydroxide is raw material, and Potassium Persulphate is an initiator, and benzene disulfonic acid amide and nitrourea are composite foamable agent, synthetic foaming type magnesium polyacrylate imbibition resin.Retrieve a large amount of patent documentations and the research paper of publishing, do not find that as yet adopting potassium hydroxide and vinylformic acid is raw material, add silicon-dioxide, epoxy chloropropane, to sulfonyl azide, sodium bisulfite, make the report of plant growing with cross-linking foaming water-retaining resin.
Summary of the invention
In order to overcome existing polyacrylic acid salt resin in farming, the suction repeatedly that exists in the forestry plant cultivation, mesh easily stops up after releasing water, it is low with guarantor's muddy water rate to inhale the muddy water multiplying power, defectives such as use cost is higher, the invention provides the preparation method of a kind of plant growing with cross-linking foaming water-retaining resin, it is characterized in that: with potassium hydroxide and vinylformic acid is basic raw material, add silicon-dioxide, epoxy chloropropane, to sulfonyl azide, sodium bisulfite, by in and chemical reaction, initiated polymerization, crosslinked foaming, extrude pelletizing, boiled bed drying, cooling packing technology is made water-retaining resin.Mesh-structured loose, aperture of the water-retaining resin that this preparation method produces and specific surface area increase, compare with non-expanded polypropylene acid potassium resin, density reduces by 15～18%, inhale muddy water (5% earth) multiplying power and improve 38～45%, protect muddy water (5% earth) rate and improve 16～20%, be specially adapted to farming, forestry plant cultivation.
For realizing that the concrete technical scheme that the object of the invention adopted is:
Material purity is 99.0～99.9% potassium hydroxide, and purity is 99.5～99.9% ACRYLIC EMULSION, and granularity is the silicon-dioxide of 2～5 μ m, epoxy chloropropane, and to sulfonyl azide, sodium bisulfite.
Prescription potassium hydroxide 23～28 mass parts, ACRYLIC EMULSION 63～70 mass parts, silicon-dioxide 5～10 mass parts, epoxy chloropropane 0.05～0.12 mass parts, to sulfonyl azide 0.3～0.6 mass parts, sodium bisulfite 0.4～0.8 mass parts.
The preparation method will place reactor with the potassium hydroxide solution of distilled water diluting to 25% concentration, and control reactor stirring velocity 60r/min adds ACRYLIC EMULSION, 70 ± 1 ℃ of control temperature in the kettle, neutralization reaction 40～45min; Add silicon-dioxide, epoxy chloropropane, mix 8～10min; Add again sulfonyl azide, continue to stir 3～5min; Place the disc type reactor, add sodium bisulfite, initiated polymerization, 112～118 ℃ of controlled polymerization temperature, polymerization time 4～6min; After treating the polymer formation gelinite, place airtight constant temperature cupboard to carry out crosslinked foaming, 138 ± 1 ℃ of control blowing temperatures, foamed time 25～30min; Then, naturally cooling 90～120min places incorgruous tapered twin screw extruder, is cut into the particulate material of φ 0.15 * 2mm, and behind 115～120 ℃ of drying 200～240min of ebullated bed, again through naturally cooling, packing forms cross-linking foaming water-retaining resin.
The invention has the beneficial effects as follows: be basic raw material 1. with potassium hydroxide and vinylformic acid, in having designed and chemical reaction → initiated polymerization → crosslinked foaming → and extrude the production technique and the operational condition of pelletizing → boiled bed drying → cooling packing process, make the cross-linking foaming water-retaining agent realize suitability for industrialized production; 2. adopting epoxy chloropropane is linking agent, silicon-dioxide is filling modifying agent, sodium bisulfite is an initiator, to sulfonyl azide is whipping agent, the control blowing temperature is 138 ± 1 ℃, and foamed time is 25～30min, and the polyacrylic acid potassium resin is foamed in airtight constant temperature cupboard, increased the mesh aperture and the specific surface area of polyacrylic acid potassium resin inside, thereby improved suction muddy water multiplying power and protected the muddy water rate; 3. the cross-linking foaming water-retaining resin made of the present invention, compare with non-expanded polypropylene acid potassium resin, density reduces by 15～18%, inhales muddy water (5% earth) multiplying power and improves 38～45%, protect muddy water (5% earth) rate and improve 16～20%, be specially adapted to the agroforestry plant growing.
Embodiment
Embodiment 1:
With 24kg purity is the distilled water diluting that 99.0% potassium hydroxide adds 72kg, be made into potassium hydroxide solution 96kg, place reactor, 69 ℃ of reactor temperatures of control, stirring velocity 60r/min, adding 65kg purity is 99.5% ACRYLIC EMULSION, neutralization reaction 40min; Adding the 6kg granularity is silicon-dioxide and the 0.06kg epoxy chloropropane of 2 μ m, mixes 8 minutes; Add 0.4kg again to sulfonyl azide, continue to stir 3min; Place the disc type reactor, add the 0.5kg sodium bisulfite, initiated polymerization, 112 ℃ of controlled polymerization temperature, polymerization time 5min, treat the polymer formation gelinite after, place airtight constant temperature cupboard to carry out crosslinked foaming, 137 ℃ of control blowing temperatures, foamed time 25min; Then, naturally cooling 90min places incorgruous tapered twin screw extruder, is cut into the particulate material of φ 0.15 * 2mm, behind 115 ℃ of dry 200min of ebullated bed, forms cross-linking foaming water-retaining resin through naturally cooling, packing again.
Embodiment 2:
With 27kg purity is the distilled water diluting that 99.9% potassium hydroxide adds 81kg, is made into potassium hydroxide solution 108kg, places reactor, control reactor stirring velocity 60r/min, adding 68kg purity is 99.9% ACRYLIC EMULSION, 71 ℃ of control temperature in the kettle, neutralization reaction 45min; Adding the 9kg granularity is silicon-dioxide and the 0.11kg epoxy chloropropane of 5 μ m, mixes 10 min; Add 0.55kg again to sulfonyl azide, continue to stir 5min; Place the disc type reactor, add the 0.7kg sodium bisulfite, initiated polymerization, 118 ℃ of controlled polymerization temperature, polymerization time 6min, treat the polymer formation gelinite after, place airtight constant temperature cupboard to carry out crosslinked foaming, 139 ℃ of control blowing temperatures, foamed time 30min; Then, naturally cooling 120min places incorgruous tapered twin screw extruder, is cut into the particulate material of φ 0.15 * 2mm, behind 120 ℃ of dry 240min of ebullated bed, forms cross-linking foaming water-retaining resin through naturally cooling, packing again.
Embodiment 3:
With 28kg purity is the distilled water diluting that 99.0% potassium hydroxide adds 72kg, be made into potassium hydroxide solution 100kg, place reactor, 69 ℃ of reactor temperatures of control, stirring velocity 60r/min, adding 65kg purity is 99.5% ACRYLIC EMULSION, neutralization reaction 40min; Adding the 7.5kg granularity is silicon-dioxide and the 0.08kg epoxy chloropropane of 2 μ m, mixes 8 minutes; Add 0.3kg again to sulfonyl azide, continue to stir 3min; Place the disc type reactor, add the 0.6kg sodium bisulfite, initiated polymerization, 112 ℃ of controlled polymerization temperature, polymerization time 5min, treat the polymer formation gelinite after, place airtight constant temperature cupboard to carry out crosslinked foaming, 137 ℃ of control blowing temperatures, foamed time 25min; Then, naturally cooling 90min places incorgruous tapered twin screw extruder, is cut into the particulate material of φ 0.15 * 2mm, behind 115 ℃ of dry 200min of ebullated bed, forms cross-linking foaming water-retaining resin through naturally cooling, packing again.
Embodiment 4:
With 23kg purity is the distilled water diluting that 99.9% potassium hydroxide adds 77kg, is made into potassium hydroxide solution 100kg, places reactor, control reactor stirring velocity 60r/min, adding 70kg purity is 99.9% ACRYLIC EMULSION, 70 ℃ of control temperature in the kettle, neutralization reaction 45min; Adding the 10kg granularity is silicon-dioxide and the 0.11kg epoxy chloropropane of 5 μ m, mixes 10 min; Add 0.3kg again to sulfonyl azide, continue to stir 5min; Place the disc type reactor, add the 0.4kg sodium bisulfite, initiated polymerization, 115 ℃ of controlled polymerization temperature, polymerization time 6min, treat the polymer formation gelinite after, place airtight constant temperature cupboard to carry out crosslinked foaming, 138 ℃ of control blowing temperatures, foamed time 30min; Then, naturally cooling 120min places incorgruous tapered twin screw extruder, is cut into the particulate material of φ 0.15 * 2mm, behind 120 ℃ of dry 240min of ebullated bed, forms cross-linking foaming water-retaining resin through naturally cooling, packing again.
Claims (5)
1. a plant growing is characterized in that with the preparation method of cross-linking foaming water-retaining resin:
Material and prescription potassium hydroxide 23～28 mass parts, ACRYLIC EMULSION 63～70 mass parts, silicon-dioxide 5～10 mass parts, epoxy chloropropane 0.05～0.12 mass parts, to sulfonyl azide 0.3～0.6 mass parts, sodium bisulfite 0.4～0.8 mass parts;
The preparation method places reactor with the solution of potassium hydroxide with distilled water diluting to 25% concentration, adds ACRYLIC EMULSION, neutralization reaction 40～45min; Add silicon-dioxide, epoxy chloropropane, mix 8～10min; Add again sulfonyl azide, continue to stir 3～5min; Place the disc type reactor, add sodium bisulfite, initiated polymerization; After treating the polymer formation gelinite, place airtight constant temperature cupboard to carry out crosslinked foaming; Then, naturally cooling 90～120min places incorgruous tapered twin screw extruder, is cut into the particulate material of φ 0.15 * 2mm, forms cross-linking foaming water-retaining resin through boiled bed drying, cooling, packing.
2. the plant growing according to claim 1 preparation method of cross-linking foaming water-retaining resin, the stirring velocity that it is characterized in that reactor in the described neutralization reaction process is 60r/min, temperature is 70 ± 1 ℃.
3. the plant growing according to claim 1 preparation method of cross-linking foaming water-retaining resin, the temperature that it is characterized in that disc type reactor in the described initiated polymerization process is 112～118 ℃, the time is 4～6min.
4. plant growing according to claim 1 is characterized in that with the preparation method of cross-linking foaming water-retaining resin temperature is 138 ± 1 ℃ in the described crosslinked foaming process, and the time is 25～30min.
5. plant growing according to claim 1 is characterized in that with the preparation method of cross-linking foaming water-retaining resin temperature is 115～120 ℃ in the described boiled bed drying process, and the time is 200～240min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100094507A CN101143938A (en) | 2007-08-30 | 2007-08-30 | A kind of preparation method of cross-linked foaming water retention resin for plant cultivation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100094507A CN101143938A (en) | 2007-08-30 | 2007-08-30 | A kind of preparation method of cross-linked foaming water retention resin for plant cultivation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101143938A true CN101143938A (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100094507A Pending CN101143938A (en) | 2007-08-30 | 2007-08-30 | A kind of preparation method of cross-linked foaming water retention resin for plant cultivation |
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| CN (1) | CN101143938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109042215A (en) * | 2018-09-07 | 2018-12-21 | 广西生态工程职业技术学院 | A kind of processing method of the anti-long-distance transport of Eucalyptus Tissue Cultured bottle seedling |
-
2007
- 2007-08-30 CN CNA2007100094507A patent/CN101143938A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109042215A (en) * | 2018-09-07 | 2018-12-21 | 广西生态工程职业技术学院 | A kind of processing method of the anti-long-distance transport of Eucalyptus Tissue Cultured bottle seedling |
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