CN101735420B - Preparation method and application method of biomass liquid agricultural membrane material - Google Patents
Preparation method and application method of biomass liquid agricultural membrane material Download PDFInfo
- Publication number
- CN101735420B CN101735420B CN2008101800494A CN200810180049A CN101735420B CN 101735420 B CN101735420 B CN 101735420B CN 2008101800494 A CN2008101800494 A CN 2008101800494A CN 200810180049 A CN200810180049 A CN 200810180049A CN 101735420 B CN101735420 B CN 101735420B
- Authority
- CN
- China
- Prior art keywords
- biomass
- preparation
- aldehyde
- water
- vegetable
- 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.)
- Expired - Fee Related
Links
- 239000002028 Biomass Substances 0.000 title claims abstract description 57
- 239000000463 material Substances 0.000 title claims abstract description 40
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 239000012528 membrane Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 36
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims abstract description 21
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 17
- 238000012643 polycondensation polymerization Methods 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 46
- 239000000203 mixture Substances 0.000 claims description 38
- 235000013311 vegetables Nutrition 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000835 fiber Substances 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 26
- 238000001704 evaporation Methods 0.000 claims description 22
- 230000008020 evaporation Effects 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 229920000642 polymer Polymers 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 229920001282 polysaccharide Polymers 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 14
- 150000004676 glycans Chemical class 0.000 claims description 13
- 238000006068 polycondensation reaction Methods 0.000 claims description 13
- 239000005017 polysaccharide Substances 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 12
- 239000007858 starting material Substances 0.000 claims description 12
- 229920002472 Starch Polymers 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 11
- 239000004202 carbamide Substances 0.000 claims description 11
- 239000008107 starch Substances 0.000 claims description 11
- 235000019698 starch Nutrition 0.000 claims description 11
- 238000005815 base catalysis Methods 0.000 claims description 10
- 239000008098 formaldehyde solution Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 230000012010 growth Effects 0.000 claims description 7
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 7
- 239000010902 straw Substances 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000011118 polyvinyl acetate Substances 0.000 claims description 6
- 241000609240 Ambelania acida Species 0.000 claims description 5
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 5
- 239000010905 bagasse Substances 0.000 claims description 5
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims description 5
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- -1 ammonium salt compound Chemical class 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 3
- 241000218691 Cupressaceae Species 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 235000012054 meals Nutrition 0.000 claims description 3
- 229940055577 oleyl alcohol Drugs 0.000 claims description 3
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000000805 composite resin Substances 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000007865 diluting Methods 0.000 abstract description 5
- 239000008104 plant cellulose Substances 0.000 abstract description 3
- 230000008635 plant growth Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002362 mulch Substances 0.000 description 7
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229920002752 Konjac Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 2
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000021357 Behenic acid Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- SGFJKNSZFNMOEM-UHFFFAOYSA-N butan-1-ol;1-methoxypropan-2-ol Chemical compound CCCCO.COCC(C)O SGFJKNSZFNMOEM-UHFFFAOYSA-N 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical class CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical class OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Protection Of Plants (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a preparation method and an application method of biomass liquid agricultural membrane material. The preparation method comprises the following steps: selecting any compound of one or any two of plant polyose substances and soluble plant cellulose biomass as the raw materials, and catalyzing hydroxyl groups under alkaline condition at 50-95 DEG C to obtain biomass stromata slurry containing hydroxyl reactive bonds; and adding 5-10 wt% of aldehyde to the biomass stromata slurry to carry out the condensation polymerization reaction, thereby obtaining the aldehyde polycondensate which is the biomass liquid agricultural membrane material. The application method comprises the following steps: when spraying the biomass liquid agricultural membrane material, adding a solidification accelerant accounting for 0.25-1.0 wt% of the aldehyde polycondensate, mixing, diluting by 6-10 times, and spraying on the soil surface. The biomass liquid agricultural membrane prepared and applied in the invention can effectively enhance the soil moisture retaining capacity, thereby satisfying the moisture requirement for plant growth.
Description
Technical field
The present invention relates to the material method of preparation and use of the plastic film for agricultural use for suppressing soil water evaporation, relate in particular to the material method of preparation and use of biomass liquid agricultural membrane.
Background technology
Drought and water shortage is the main restricting factor of agricultural sustainable development in world wide, and northern China drought-hit area water resources quantity and cultivated area account for respectively 17% and 64% of the whole nation.The not enough 400mm of the regional average annual precipitation of current China 45%, irrigated farmland lack of water more than 300 hundred million m
3.Agricultural water application efficiency is low simultaneously, soil moisture surface evaporation loss, and in the NORTHWEST CHINA semiarid zone, its amount generally accounts for 1/4～1/2 of crop total water consumption, accounts for 55～65% of annual precipitation.Therefore, reducing soil water evaporation is the important step that improves water use efficiency.
The seventies in last century, follow the development of plastics industry, Japan and European and American developed countries start plastic film applications in agriculture production.Mulching planting have heat, water conservation, volume increase and enlarge the effect in crop Shi Zuo district, the application of this technology makes farm output and benefit obtain significantly increasing, and has brought the leap of agricultural productive force and the change of the mode of production.China has been applied to agriculture production by mulch film since the eighties in last century, and the sustainable growth of plastic film mulching cultivation area, become plastic film mulching cultivation big country, not only scale is large, and the crop species related to is many, wherein take the cotton film-covering cultivated area as maximum, account for more than 70% of total overlay film area.Due to highlighting of the problem such as ultra-thin, frangible, not weather-proof; Add plastics agricultural mulching residual film in soil and constantly accumulate, residual film contaminated soil, hinder farming, destroy the topsoil gong structure, hinder the liquid manure transporting, affect the problem such as growing of soil permeability and crop day by day serious, to China's agricultural environment formation significant threat.
The thirties in 20th century, the former Soviet Union utilizes naphtha soap to suppress soil water evaporation, reduces moisture evaporation 60～70%.The forties, Britain was once studied with cationic asphalt emulsion earthing kind grass, but promoted because of expensive being difficult to.After this between more than 20 year, scientific circles continue again to seek new pitch modifying agent, and have carried out many-sided further investigation.France, the U.S. etc. by polyacrylamide (PAM) utilize sprinkling irrigation, canal irrigation, the mode such as spray is applied in soil surface, in order to suppressing the moisture evaporation, fixing soil prevents erosion, improves Soil structure, can save irrigation water 30～50%.Within 1998, carried out first at home the production of production domesticization liquid-state mulch film, the application test that carries out liquid film in 10, whole nation provinces and cities, obtained extraordinary economical, societal benefits.Use asphalt emulsion, nano level waste plastic mixture and polyacrylamide (PAM) etc., there is good soil water evaporation and suppress validity, but exist dilution and Quadratic Stability is poor, more seriously the secondary pollution problem of farmland ecological environment received much concern.The problems such as the exploitation of fully bio-degradable type novel material thus,, Quadratic Stability, dilution and film-forming properties improvement are the emphasis that tackling key problem solves.
Along with society and economic progress; the raising of environmental protection consciousness; efficient, nontoxic, pollution-free, the inexpensive important requirement that becomes its application agriculture production of the exploitation of the environmental protection of Farmland input, biological degradation and biomass resource, particularly chemical water-saving preparation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of preparation and use of biomass liquid agricultural membrane material, this biomass liquid agricultural membrane can significantly reduce soil water evaporation, improve soil water code insurance accumulation of energy power, thereby supply with the sufficient water demand of plant growth.
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of biomass liquid agricultural membrane material, comprise: select the vegetable polysaccharides material and dissolve one or both any mixture in vegetable fibre cellulosic biomass starting material, in the temperature condition base catalysis hydroxyl of 50～95 ℃, generate the sticky thing of the biomass-based chylema that contains the hydroxyl activity key; At the sticky thing of described biomass-based chylema, add 5～10% aldehyde by weight to carry out the condensation polymerization reaction, produce aldehyde bunching compound and be described biomass liquid agricultural membrane material, for suppressing soil water evaporation, or process for functional membrane material; The reaction of described condensation polymerization is by adding formaldehyde solution in the sticky thing of described biomass-based chylema and abundant homogeneous mixing is carried out.
Preferably, the vegetable polysaccharides material is one or both any mixture in starch and Rhizoma amorphophalli powder, add the water of 50～100 times by weight in described vegetable polysaccharides material, under 50～95 ℃ of temperature condition, the sticky body of slurry is made in gelatinization, the base catalysis hydroxyl adds NaOH solution or KOH solution homogeneous in the sticky body of slurry, and wherein the ratio of the sticky body of slurry and NaOH solution or KOH solution is 700: 1 by weight～3.
Preferably, also comprise 100% the plant cellulose starting material that add the condensed polymer consumption, described plant cellulose starting material are grass meal prepared by crop material.
Preferably, dissolving vegetable fibre cellulosic biomass starting material is by one or more straw pulps that are slurried in described bagasse, crop material and processing of farm products residue with Physical, fully homogeneous, the film forming thickness, toughness and the tensile strength that to improve liquid agricultural membrane material, spray.
Preferably, also comprise: the biomass-based chylema of urea being added to base catalysis is glued in the polycondensation resultant of thing and formaldehyde, and the polycondensation of base catalysis urea and aldehyde under 50～95 ℃ of temperature condition, to reduce the residues of formaldehyde content in resultant.
Preferably, also comprise: water-soluble high-molecular material 5%～20% is added in aldehyde bunching compound by weight, to increase the tensile strength of biomass liquid mould material; Water-soluble high-molecular material comprise urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane or polyvinyl alcohol wherein one or more.
In order to solve the problems of the technologies described above, the invention provides a kind of using method that adopts the biomass liquid agricultural membrane prepared as above-mentioned method, comprise: biomass liquid agricultural membrane is when spraying use, need to add the curing catalyst that accounts for by weight aldehyde condensed polymer consumption 0.25～1.0%, after whole the mixing, 6～10 times of redilution spray soil surface, with the evaporation of the soil moisture that suppresses crop growth period; Curing catalyst comprises strong acid ammonium salt compound or phosphoric acid.
In order to solve the problems of the technologies described above, the invention provides a kind of biomass agricultural is the preparation method of film forming, comprising: vegetable fibre cellulosic biomass starting material are prepared to straw pulp matter by Physical, copy vegetable fibre film processed 10～20g/m
2Polycondensation for the vegetable fibre film-resin is infiltrated to complex liquid to be infiltrated, it is composite that polycondensation-resin infiltrates the aqueous solution of the water-soluble high-molecular material mixture that complex liquid is 10～30% by the aldehyde bunching compound of 70～200 parts of vegetable polysaccharides matrix and 10～150 parts of concentration, and it is film forming that vegetable fibre film surface drying, the rolling after infiltrating makes biomass agricultural; The aldehyde bunching compound of described vegetable polysaccharides matrix is the sticky thing of biomass-based chylema to be carried out to condensation polymerization with formaldehyde react generation, the sticky thing of described biomass-based chylema adopts one or more in starch, Rhizoma amorphophalli powder and solution Mierocrystalline cellulose, in the temperature condition base catalysis hydroxyls of 50～95 ℃, generates.
Preferably, vegetable fibre cellulosic biomass starting material comprise one or more in bagasse, crop material and processing of farm products residue; The water-soluble high-molecular material mixture comprises a kind of singly the joining or multiple composite resin in aqueous polyurethane, urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate.
Preferably, also comprise: infiltrate in complex liquid and add 50～100ppm cypress oleyl alcohol in polycondensation-resin, with extend described agricultural be the use working lipe of film forming.
The biomass liquid agricultural membrane prepared according to the present invention, can effectively reduce soil water evaporation, improve soil water code insurance accumulation of energy power, thereby supply with the water demand of plant growth.
Below will the method for preparation and use to the soil surface covering material of inhibition moisture evaporation of the present invention be described in detail with preferred embodiment.
Embodiment
Degree in following examples, ratio content or umber content, as Special Statement not, all refer to content by weight.
Embodiment 1
Rhizoma amorphophalli powder 5g is added in 3500ml water, prepares viscous solution homogeneously under the temperature condition of 50 ℃ of heating; Slowly add again the 1.0g NaOH solution be dissolved in 5ml water, impel the viscous solution of konjaku biomass matrix to generate more hydroxyl activity key; Carry out condensation polymerization reaction 1 hour after adding the formaldehyde solution 200ml of 40% concentration to mix, produce konjaku-formaldehyde condensation polymer and close resultant.Afterwards, by the formaldehyde solution 140ml of 40% concentration with after urea 90g mixes, adding konjaku-formaldehyde condensation polymer to closes in resultant, after abundant mixing is homogeneous, carry out condensation polymerization reaction 1.5 hours under the temperature condition of 60 ℃, add again the 25g polyvinyl alcohol that is dissolved in 800ml water, fully mix homogeneous rear insulation 1.5 hours, make product 4700g.
Konjaku-formaldehyde condensation polymer closes resultant as the liquid-state mulch film that suppresses soil water evaporation, sprays while using and need in konjaku-formaldehyde condensation polymer compound, add solidifying agent (NH
4One or more in Cl, acetic acid, oxalic acid, Phenylsulfonic acid or phosphoric acid), this solidifying agent accounts for 0.1～1.0% of konjaku-formaldehyde condensation polymer compound consumption by weight, 6～10 times of whole mixed dilutings spray soil surface again, with the evaporation of the soil moisture that suppresses crop growth period.
Add 100% crop material straw pulp or grass meal of konjaku-formaldehyde condensation polymer compound consumption, increase film forming thickness and film toughness that liquid soil surface covering material sprays.
Embodiment 2
Rhizoma amorphophalli powder 30g, starch 20g are added to respectively in 2000ml and 1500ml water, the homogeneous viscous solution for preparing under the temperature condition of 60 ℃ of heating, add again hydroxyl activation baggasse fiber cellulose solution (after baggasse fiber 25g and 8%NaOH and 15% urea soln 60ml fully mix and rub, place 12.0 hours), mix homogeneously, this alkaline condition also impels the viscous solution of konjaku and starch biomass matrix to generate more hydroxyl activity key; Then add 40% formaldehyde solution 240ml and mix homogeneous after, carry out condensation polymerization reaction 1.5 hours.Afterwards, 40% formaldehyde solution of 100ml is mixed with urea 82g, and the formaldehyde condensation polymer that adds konjaku-starch-baggasse fiber mixture to closes in resultant, fully mix homogeneous after, carry out condensation polymerization reaction 3.5 hours under the temperature condition of 70 ℃, make product 4700g.
Prepare the aqueous self-drying Synolac.By following composition, mix homogeneous: 4～7 parts, 42～46 parts of behenic acids, 16～22 parts of tetramethylolmethanes, 15～17 parts of PA (Tetra hydro Phthalic anhydride), 15～18 parts of DMPA (dimethylol propionic acid) and phenylformic acid, then add 6 parts of backflow dimethylbenzene, then pass into CO
2gas, slowly be warming up to 180 ℃, then after reacting 1 hour, being warming up to 205 ℃ reacts 2 hours again, and then be warming up to 225 ℃, after insulation esterification mensuration acid number reaches the 55mgKOH/g value range, Separation and Recovery dimethylbenzene, and the synthetics after this separating dimethyl benzene is reduced below temperature to 120 ℃, add again 9 parts of cis-butenedioic anhydride oil, 120 ℃ are incubated 0.5 hour, under 60 ℃ of conditions, use afterwards in triethylamine (TEA) and acid number 15min, add and press the volumometer propyl carbinol-propylene glycol monomethyl ether of 1.5: 1 (PM) solubility promoter again, regulate the resin solution that the resultant solid component content is 70～80%, add again deionized water adjustment solids content after homogeneous and reach 60% scope, fully mix the homogeneous aqueous alkide resin that makes.
The formaldehyde condensation polymer of konjaku-starch-baggasse fiber mixture closes resultant 500g, adds aqueous alkide resin 5～150g, mixes homogeneously, makes vegetable polysaccharides matrix and Synolac polycondensation mixture.This mixture, as the liquid-state mulch film that suppresses the moisture evaporation, sprays the NH that need add polycondensation mixture consumption 0.25% while using
4Cl and 0.5～1% aqueous alkide resin siccative, 6～10 times of whole mixed dilutings spray soil surface, with the evaporation of the soil moisture that suppresses crop growth period.
Embodiment 3
Rhizoma amorphophalli powder 20g, starch 35g are added to respectively in 2000ml and 1500ml water, the homogeneous viscous solution for preparing under the temperature condition of 60～90 ℃ of heating, add again hydroxyl activation baggasse fiber cellulose solution (after baggasse fiber 45g and 5wt%NaOH-17wt% urea soln 60ml fully mix and rub, place 12.0 hours), mix homogeneously, this alkaline condition impels the viscous solution of konjaku and starch biomass matrix to generate more hydroxyl activity key; Add again 40% formaldehyde solution 250ml to mix and carry out condensation polymerization reaction 1.5 hours.Afterwards, the formaldehyde condensation polymer that 40% formaldehyde solution of 80ml is mixed with urea 82g and add konjaku-starch-baggasse fiber mixture to closes in resultant, after abundant mixing is homogeneous, compiled polyreaction 3.5 hours under the temperature condition of 60～90 ℃, made product 4700g.
The formaldehyde condensation polymer of konjaku-starch-baggasse fiber mixture closes 80～150 parts of products, adds 15～20 parts of polyvinyl acetates, mixes homogeneously, makes the mixture of the aldehyde polycondensation of vegetable polysaccharides matrix and polyvinyl acetate.The liquid-state mulch film that this mixture suppresses as soil water evaporation, spray the NH that need add polycondensation mixture consumption 0.25～1.0% while using
4Cl, 6～10 times of whole mixed dilutings spray soil surface, with the evaporation of the soil moisture that suppresses crop growth period.
Embodiment 4
Rhizoma amorphophalli powder 40g, starch 35g are added to respectively in 2000ml and 1500ml water, the homogeneous viscous solution for preparing under the temperature condition of 60～90 ℃ of heating, (crop material 50g is with after 6%NaOH and 10% urea soln 90ml fully mix to add hydroxyl activation baggasse fiber cellulose solution again, place 12.0 hours), mix homogeneous, this alkaline condition impels the viscous solution of konjaku and starch biomass matrix to generate more hydroxyl activity key, adds 40% formaldehyde solution 250ml to mix and carries out condensation polymerization reaction 1.5 hours.Afterwards, the formaldehyde condensation polymer that 40% formaldehyde solution of 80ml is mixed with urea 82g and add konjaku-starch-baggasse fiber mixture to closes in resultant, after abundant mixing is homogeneous, carry out condensation polymerization reaction 3.5 hours under the temperature condition of 90 ℃, make product 4700g.
The formaldehyde condensation polymer of konjaku-starch-baggasse fiber mixture is closed to 100～150 parts, resultant, add 10～30 parts of aqueous polyurethane resins, mix homogeneously, make the mixture of the aldehyde polycondensation of vegetable polysaccharides matrix and aqueous polyurethane.The liquid-state mulch film that this mixture suppresses as soil water evaporation, spray the NH that need add polycondensation mixture consumption 0.2～0.6% while using
4Cl, 6～10 times of whole mixed dilutings spray soil surface, with the evaporation of the soil moisture that suppresses crop growth period.
Embodiment 5
The manufacture of biomass agricultural mulching (being film forming), prepare straw pulp matter by crop material or bagasse etc. by Physical, copies vegetable fibre film (10～20g/m processed
2).The solution immersion of mixture 10～30% concentration of (starch, Rhizoma amorphophalli powder, solution Mierocrystalline cellulose) the matrix aldehyde polycondensation of 70～200 parts of vegetable polysaccharidess for the vegetable fibre film and 10～150 parts of aqueous polyurethanes (or urea formaldehyde polymer or aqueous alkide resin or polyvinyl acetate or the composite hybrid resin of they different ratios), vegetable fibre film surface drying, rolling after infiltrating make biomass agricultural mulching (being film forming), this legal system is made the agricultural straw fiber mulch film of biomass, can improve water tolerance and the tensile strength of film.Polycondensation-resin infiltrates in complex liquid and adds cypress oleyl alcohol (ultimate density 0.01% in composite solution), can regulate and control the degradation resistant of agricultural mulching, and the use of film is extended working lipe.
Claims (10)
1. the preparation method of a biomass liquid agricultural membrane material, comprise: select the vegetable polysaccharides material and dissolve one or both any mixture in vegetable fibre cellulosic biomass starting material, in the temperature condition base catalysis hydroxyl of 50～95 ℃, generate the sticky thing of the biomass-based chylema that contains the hydroxyl activity key; At the sticky thing of described biomass-based chylema, add 5～10% aldehyde by weight to carry out the condensation polymerization reaction, produce aldehyde bunching compound and be described biomass liquid agricultural membrane material, for suppressing soil water evaporation, or process for functional membrane material; The reaction of described condensation polymerization is by adding formaldehyde solution in the sticky thing of described biomass-based chylema and abundant homogeneous mixing is carried out.
2. preparation method as claimed in claim 1, it is characterized in that, described vegetable polysaccharides material is one or both any mixture in starch and Rhizoma amorphophalli powder, add the water of 50～100 times by weight in described vegetable polysaccharides material, under described 50～95 ℃ of temperature condition, the sticky body of slurry is made in gelatinization, described base catalysis hydroxyl adds NaOH solution or KOH solution homogeneous in the sticky body of described slurry, and the ratio of the sticky body of wherein said slurry and described NaOH solution or KOH solution is 700: 1 by weight～3.
3. preparation method as claimed in claim 2, is characterized in that, also comprises 100% the vegetable fibre cellulosic biomass starting material that add described aldehyde bunching compound consumption, and described vegetable fibre cellulosic biomass starting material are grass meal prepared by crop material.
4. preparation method as claimed in claim 1, it is characterized in that, described dissolving vegetable fibre cellulosic biomass starting material are by one or more straw pulps that are slurried in described bagasse, crop material and processing of farm products residue with Physical, fully homogeneous, the film forming thickness, toughness and the tensile strength that to improve described liquid agricultural membrane material, spray.
5. preparation method as claimed in claim 4, it is characterized in that, also comprise: the biomass-based chylema of urea being added to base catalysis is glued in the polycondensation resultant of thing and described formaldehyde, the polycondensation of base catalysis urea and aldehyde under described 50～95 ℃ of temperature condition, to reduce the residues of formaldehyde content in described resultant.
6. preparation method as claimed in claim 5, is characterized in that, also comprises: water-soluble high-molecular material 5%～20% is added in described aldehyde bunching compound, to increase the tensile strength of described biomass liquid mould material by weight; Described water-soluble high-molecular material comprise urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate, aqueous polyurethane or polyvinyl alcohol wherein one or more.
7. the using method of the biomass liquid agricultural membrane that prepared as method as described in claim 1 to 6 any one by an employing, it is characterized in that, described biomass liquid agricultural membrane is when spraying use, need to add the curing catalyst that accounts for by weight described aldehyde condensed polymer consumption 0.25～1.0%, after whole the mixing, 6～10 times of redilution spray soil surface, with the evaporation of the soil moisture that suppresses crop growth period; Described curing catalyst comprises strong acid ammonium salt compound or phosphoric acid.
8. biomass are agricultural is the preparation method of film forming, comprising: vegetable fibre cellulosic biomass starting material are prepared to straw pulp matter by Physical, copy vegetable fibre film processed 10～20g/m
2Described polycondensation for the vegetable fibre film-resin is infiltrated to complex liquid to be infiltrated, it is composite that described polycondensation-resin infiltrates the aqueous solution of the water-soluble high-molecular material mixture that complex liquid is 10～30% by the aldehyde bunching compound of 70～200 parts of vegetable polysaccharides matrix and 10～150 parts of concentration, and it is film forming that vegetable fibre film surface drying, the rolling after infiltrating makes described biomass agricultural; The aldehyde bunching compound of described vegetable polysaccharides matrix is the sticky thing of biomass-based chylema to be carried out to condensation polymerization with formaldehyde react generation, the sticky thing of described biomass-based chylema adopts one or more in starch, Rhizoma amorphophalli powder and solution Mierocrystalline cellulose, in the temperature condition base catalysis hydroxyls of 50～95 ℃, generates.
9. preparation method as claimed in claim 8, is characterized in that, described vegetable fibre cellulosic biomass starting material comprise one or more in bagasse, crop material and processing of farm products residue; Described water-soluble high-molecular material mixture comprises a kind of singly the joining or multiple composite resin in aqueous polyurethane, urea formaldehyde polymer, aqueous alkide resin, polyvinyl acetate.
10. preparation method as claimed in claim 8 or 9, is characterized in that, also comprises: infiltrate in complex liquid and add 50～100ppm cypress oleyl alcohol at described polycondensation-resin, with extend described agricultural be the use working lipe of film forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101800494A CN101735420B (en) | 2008-11-20 | 2008-11-20 | Preparation method and application method of biomass liquid agricultural membrane material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101800494A CN101735420B (en) | 2008-11-20 | 2008-11-20 | Preparation method and application method of biomass liquid agricultural membrane material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101735420A CN101735420A (en) | 2010-06-16 |
| CN101735420B true CN101735420B (en) | 2013-12-04 |
Family
ID=42459489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101800494A Expired - Fee Related CN101735420B (en) | 2008-11-20 | 2008-11-20 | Preparation method and application method of biomass liquid agricultural membrane material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101735420B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319738B (en) * | 2013-06-24 | 2017-11-21 | 稼禾生物股份有限公司 | The method that agricultural crop straw prepares regenerated cellulose composite film |
| CN103965519B (en) * | 2014-05-16 | 2016-05-04 | 齐鲁工业大学 | A kind of regenerated cellulose strengthens the preparation method of starch film |
| CN108575470A (en) * | 2018-06-27 | 2018-09-28 | 重庆盛方新材料科技有限公司 | Plant training pad and preparation method thereof |
| CN111154148B (en) * | 2020-02-20 | 2022-04-05 | 齐鲁工业大学 | Preparation method of waterborne polyurethane modified starch-based liquid mulching film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357569A (en) * | 2001-12-30 | 2002-07-10 | 北京中宣绿环科技发展有限公司 | Degradable soil moisture preserving liquid film and its prepn |
| CN1415698A (en) * | 2001-10-30 | 2003-05-07 | 中国石油化工股份有限公司 | Liquid mulching film and its producing method |
| CN1464028A (en) * | 2002-06-10 | 2003-12-31 | 中国农业大学 | A liquid state mulching film forming material and method for preparing same |
| CN1935878A (en) * | 2006-10-20 | 2007-03-28 | 中国科学院长春应用化学研究所 | Multifunctional degradable liquid-state mulch film and its preparing method |
-
2008
- 2008-11-20 CN CN2008101800494A patent/CN101735420B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415698A (en) * | 2001-10-30 | 2003-05-07 | 中国石油化工股份有限公司 | Liquid mulching film and its producing method |
| CN1357569A (en) * | 2001-12-30 | 2002-07-10 | 北京中宣绿环科技发展有限公司 | Degradable soil moisture preserving liquid film and its prepn |
| CN1464028A (en) * | 2002-06-10 | 2003-12-31 | 中国农业大学 | A liquid state mulching film forming material and method for preparing same |
| CN1935878A (en) * | 2006-10-20 | 2007-03-28 | 中国科学院长春应用化学研究所 | Multifunctional degradable liquid-state mulch film and its preparing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101735420A (en) | 2010-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101161718A (en) | Biological degradation liquid film and preparation method | |
| CN101864036B (en) | Method for synthesizing super absorbent resin by plant straw | |
| CN101343383B (en) | Cellulose based degradable liquid mulch film | |
| CN1994047A (en) | Sand-fixing and greening integrated mobile or semi-mobile sand dune ecological restoration method | |
| CN101973808A (en) | Starch coating material and application thereof in coated sustained/controlled release fertilizers | |
| CN103360168B (en) | Preparation method of biological sand-solidification water-retention repairing agent | |
| CN101735420B (en) | Preparation method and application method of biomass liquid agricultural membrane material | |
| CN108865150A (en) | Sand-consolidating agent and preparation method thereof, application method and application | |
| CN102212212B (en) | Method for preparing organosolv lignin modified starch thermoplastic composite material | |
| CN102417574A (en) | Biodegradable waterborne polyurethane sand fixing agent and preparation method thereof | |
| CN102337138A (en) | Biodegradable liquid mulch film produced from papermaking waste liquid, and production method thereof | |
| CN101402794A (en) | Multifunctional degradable liquid mulch film, production method and uses thereof | |
| CN109777430A (en) | A kind of pH released microcapsule type macromolecule saline-alkali soil modifying agent and preparation method thereof | |
| CN108929698A (en) | A kind of preparation method of inorganic clay-alkali cellulose water-keeping material | |
| CN101280073B (en) | Agricultural liquid ground cover film, preparation and use method thereof | |
| CN101591520A (en) | A kind of aldehyde-free water-based adhesive for straw board | |
| CN103204747A (en) | Nutritional composite gel material for soil improvement | |
| CN1995280A (en) | Preparation method of sand-fixing material modified by paper-making pulp-making waste liquor lignin and its production device | |
| CN105111761A (en) | Lignin-based environment-friendly mulching film forming liquid, preparation method thereof and mulching film | |
| CN116640289B (en) | Polyurethane material for controlled release fertilizer coating and preparation method and application thereof | |
| CN102504829B (en) | Starch-grafted waterborne polyurethane sand fixing agent and preparation method thereof | |
| CN105693966B (en) | A kind of preparation method of pyrolysis oil Lauxite sand-consolidating agent | |
| CN102952548A (en) | Method for preparing wind-prevention and sand-fixation water retaining agent by use of pulping and papermaking waste liquid | |
| CN108623748A (en) | A kind of load boron fibre element super absorbent resin and preparation method thereof | |
| CN102320886A (en) | Preparation method of polymer reticular fiber membrane condensed liquid fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211210 Address after: 810021 office building 128 Chuangye Road, Nanchuan Industrial Park, Xining City, Qinghai Province Patentee after: Zhongling environmental protection Co.,Ltd. Address before: 100081 No. 12 South Main Street, Haidian District, Beijing, Zhongguancun Patentee before: INSTITUTE OF ENVIRONMENT AND SUSTAINABLE DEVELOPMENT IN AGRICULTURE, CHINESE ACADEMY OF AGRICULTURAL SCIENCES |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |