CN105131629A - Degraded mulch film containing nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies - Google Patents
Degraded mulch film containing nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies Download PDFInfo
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- CN105131629A CN105131629A CN201510564939.5A CN201510564939A CN105131629A CN 105131629 A CN105131629 A CN 105131629A CN 201510564939 A CN201510564939 A CN 201510564939A CN 105131629 A CN105131629 A CN 105131629A
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Abstract
The invention provides a degraded mulch film containing nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies, and relates to an agricultural mulch film. The mulch film is mixed from aliphatic polyester, polylactic acid, starch/polyvinyl alcohol, a modified plant straw, a film forming agent and a surfactant, and the mulch film comprises three layers, the mulch film middle layer contains the nanometer level TiO2 photocatalyst and a hydrolytic agent which are mixed in proportion; the upper layer is sprayed with a paint containing an oxidation degradation agent; the mulch film lower layer is sprayed with a fertilizer, a microelement fertilizer, a pesticide and a herbicide or the like which are mixed in proportion and are needed by plant growth; The three-layer mulch film provided by the invention can decay and decompose by itself, integrates pesticide, fertilizer and pesticide without residual, and comprises nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies. The invention has the advantages of wide raw material sources, low cost, various degradation modes and fast degradation speed, and is suitable for different crop growths.
Description
Technical field
The present invention relates to a kind of degradable mulch, particularly relate to a kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film.
Background technology
Mulch film has vital role in China's agricultural production process, not only has the effect of insulation, moisturizing, fertilizer conservation, but also there is diseases prevention worm, the effect such as waterlogging-resistant of taking precautions against drought, growing of farm crop can be promoted, effectively improve crop yield, increase productivity effect.But traditional mulch film is due to the decomposition of plastics self difficulty, and ventilation property, water permeability are not good, the difficulty such as weeding, fertilising, have limited to the use of mulch film, have impact on soil production capacity.And three layers of mulch film combine itself just and can decompose completely, and point levels spraying difference in functionality coating, integrate weeding, fertilising, the comprehensive composite mulching film that decomposes to reach.Chinese patent CN1277228 and patent application CN101828495A shows, its Patent CN1277228 adopts the method for liquid spraying to be directly applied to scene, some raw material can be absorbed rapidly by surface soil layer like this, but owing to being liquid state, the wherein easy skewness of each function ingredients, and mulch film discarded after, still can the additive such as remaining a small amount of agricultural chemicals, chemical fertilizer on mulch film, these all can cause Land pollution to a certain extent, are unfavorable for environmental protection.And patent application CN101828495A adopts upper strata mulch film to be matrix resin, lower floor sprays micro-fertilizer, weedicide, degradation agents etc., but wherein only have employed biological degradation, and slowly, short run effect is not obvious in degraded.
Summary of the invention
The object of the present invention is to provide a kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, mulch film of the present invention is a kind of nano level TiO of mulch film integrating agricultural chemicals, fertilizer and agricultural chemicals noresidue degenerating decomposition voluntarily
2photochemical catalysis, water, oxidation, biological multinomial degraded three layers of mulch film.Raw material sources extensively, cost is lower, degraded mode is various, degradation speed fast, adapt to Different Crop growth needs.
The object of the invention is to be achieved through the following technical solutions:
A kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, the film that described mulch film is mixed by aliphatic polyester, poly(lactic acid), PE/Starch alcohol, improved plant stalk, membrane-forming agent, tensio-active agent, mulch film is three layers, and mulch film middle level is the nano level TiO be in harmonious proportion in proportion
2photocatalyst, hydrolytic reagent; The coating of upper strata spraying oxidative degradation agent; Chemical fertilizer needed for the plant-growth be in harmonious proportion in proportion and micro-fertilizer, agricultural chemicals, weedicide etc., be sprayed on mulch film lower floor; Three layers of ground film component and the following mass fraction of content: aliphatic polyester 5-20 part; Poly(lactic acid) 1-10 part; PE/Starch alcohol 10-24 part; Improved plant stalk 1-30 part; Membrane-forming agent 0-3.5 part; 0.5 1 1.5 parts, tensio-active agent; Stablizer 0-4.50 part; Micro-fertile 0-2.50 part; Chemical fertilizer 0-3 parts; Nanosized TiO_2, hydrolytic reagent, oxidative degradation agent, chemical fertilizer decomposition agent, agricultural chemicals, weedicide, above six kinds of materials account for 1 part altogether.
Described a kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, improved plant stalk is the plant fibre slurry liquid of Nanometer-Sized UItrafines Powders, plant flour, chemical steaming, and wherein chemical steaming comprises alkaline process and ammonium method.
Described a kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, membrane-forming agent is the mixture of one or more in poly(lactic acid), aliphatic polyester, polyvinyl alcohol, water glass, carboxymethyl cellulose, polyacrylamide, starch, treated starch, acrylic resin, white glue with vinyl.
Described a kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, mulch film the upper and lower, all adopt coating, make nutritive substance, fertilizer, each degradation agents etc., evenly can be coated in mulch film middle layer; The upper and lower layer of the mulch film wherein sprayed is nano level spraying.
Described a kind of nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, tensio-active agent is anionic surface agent alive, cats product, amphoterics or its mixture.
Advantage of the present invention and effect are:
1. the natural phant stalk that the present invention adopts rural area to be available anywhere is raw material, greatly reduces the production cost of mulch film, reasonably make use of stalk resource.
2. adopt straw to degenerate to be decomposed into humic acids and thoroughly to solve mulch film to turn increasing the feature integrating agricultural chemicals, fertilizer and plastic sheeting for farm use while soil and environmental pollution.And the fertilising of mulch film lower floor, mulch film upper strata is decomposed, and definite functions, positive Promoting plant growth, discomposing effect is fine.
3. this mulch film not only has general biological and photodegradation function, but also can according to different biological growth needs, obtains three layers of mulch film of applicable different crops by being adjusted to film and agricultural chemicals, weedicide, the kind of micro-fertilizer and content.
4. this mulch film making processes is simple, and can produce with simply pulverizing, boiling, stirring and extrusion equipment, stationary phase is long.
5. when farm crop or grass are emerged, without artificial seedling setting, naturally can emerge, save a large amount of man power and materials.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1, get straw 30 parts, PE/Starch alcohol 20 parts, aliphatic polyester 10 parts, poly(lactic acid) 10 parts, 0.5 part, tensio-active agent (sodium lauryl sulphate), membrane-forming agent (sodium napthionate) 0.5 part, stablizer (potash water glass) 4 parts, 3 parts, urea, RE microbial fertilizer 2 parts, 20 parts, water.First PE/Starch alcohol is dissolved in the hot water of 90 ~ 95 DEG C, then adds and be crushed to 300 order plant straw powders and tensio-active agent, sodium napthionate, potash water glass, urea and RE microbial fertilizer, stir, extrude evenly.
Embodiment 2, gets straw 30 parts, PE/Starch alcohol 10 parts, aliphatic polyester 10 parts, poly(lactic acid) 10 parts, 1 part, tensio-active agent (lignin amine), 3 parts, saltpetre, sodium silicate 4 parts, 3 parts, ammonium sulfate, RE microbial fertilizer 1 part, 2 parts, sodium hydroxide, 26 parts, water.
First by boiling with pressure for straw aqueous sodium hydroxide solution one hour, form slurries; Then add PE/Starch alcohol stirring and dissolving, evenly, add aliphatic polyester, poly(lactic acid); Add tensio-active agent, saltpetre, sodium silicate, ammonium sulfate and RE microbial fertilizer again, stir.
Embodiment 3, gets the dense papermaking liquid in paper mill 60 parts, PE/Starch alcohol 10 parts, aliphatic polyester 10 parts, poly(lactic acid) 10 parts, 3 parts, saltpetre, sodium silicate 4 parts, 2 parts, ammonium sulfate, RE microbial fertilizer 1 part.
First polyvinyl alcohol is joined stirring and dissolving in the dense black liquid of 90 ~ 95 DEG C, evenly, add aliphatic polyester, poly(lactic acid); Add saltpetre, sodium silicate, ammonium sulfate and RE microbial fertilizer again, stir.
The product of embodiment 1 is in ground, peanut ground plastic film mulch.Film splits for 31 days, all degradeds in 80 days.Per mu yield improves 25%, and the ripening stage shifts to an earlier date 5 days.
The product of embodiment 2 is in ground, peanut ground plastic film mulch.Film splits for 44 days, all degradeds in 105 days.Per mu yield improves 35%, and the ripening stage shifts to an earlier date 12 days.
The product of embodiment 3 is in corn field ground plastic film mulch.Film splits for 36 days, all degradeds in 90 days.Per mu yield improves 30%, and the ripening stage shifts to an earlier date 8 days.
Claims (5)
1. a nano level TiO
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, it is characterized in that, the film that described mulch film is mixed by aliphatic polyester, poly(lactic acid), PE/Starch alcohol, improved plant stalk, membrane-forming agent, tensio-active agent, mulch film is three layers, and mulch film middle level is the nano level TiO be in harmonious proportion in proportion
2photocatalyst, hydrolytic reagent; The coating of upper strata spraying oxidative degradation agent; Chemical fertilizer needed for the plant-growth be in harmonious proportion in proportion and micro-fertilizer, agricultural chemicals, weedicide etc., be sprayed on mulch film lower floor; Three layers of ground film component and the following mass fraction of content: aliphatic polyester 5-20 part; Poly(lactic acid) 1-10 part; PE/Starch alcohol 10-24 part; Improved plant stalk 1-30 part; Membrane-forming agent 0-3.5 part; 0.5 1 1.5 parts, tensio-active agent; Stablizer 0-4.50 part; Micro-fertile 0-2.50 part; Chemical fertilizer 0-3 parts; Nano level TiO
2, hydrolytic reagent, oxidative degradation agent, chemical fertilizer decomposition agent, agricultural chemicals, weedicide, above six kinds of materials account for 1 part altogether.
2. a kind of nano level TiO according to claim 1
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, is characterized in that, improved plant stalk is the plant fibre slurry liquid of Nanometer-Sized UItrafines Powders, plant flour, chemical steaming, and wherein chemical steaming comprises alkaline process and ammonium method.
3. a kind of nano level TiO according to claim 1
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, it is characterized in that, membrane-forming agent is the mixture of one or more in poly(lactic acid), aliphatic polyester, polyvinyl alcohol, water glass, carboxymethyl cellulose, polyacrylamide, starch, treated starch, acrylic resin, white glue with vinyl.
4. a kind of nano level TiO according to claim 1
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, it is characterized in that, mulch film the upper and lower, all adopt coating, make nutritive substance, fertilizer, each degradation agents etc., evenly can be coated in mulch film middle layer; The upper and lower layer of the mulch film wherein sprayed is nano level spraying.
5. a kind of nano level TiO according to claim 1
2photochemical catalysis, water, oxidation, biological multinomial degradative plastic film, is characterized in that, tensio-active agent is anionic surface agent alive, cats product, amphoterics or its mixture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510564939.5A CN105131629A (en) | 2015-09-08 | 2015-09-08 | Degraded mulch film containing nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510564939.5A CN105131629A (en) | 2015-09-08 | 2015-09-08 | Degraded mulch film containing nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies |
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| CN105131629A true CN105131629A (en) | 2015-12-09 |
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| CN201510564939.5A Pending CN105131629A (en) | 2015-09-08 | 2015-09-08 | Degraded mulch film containing nanometer level TiO2 photocatalysis, water, oxidation and biological degradation technologies |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647218A (en) * | 2016-03-11 | 2016-06-08 | 童思佳 | Biomass straw mulch and production method thereof |
| WO2017066883A1 (en) * | 2015-10-21 | 2017-04-27 | 9298-6876 Quebec Inc. | Bio-polymer mulch film and process for manufacturing same |
| CN106750564A (en) * | 2017-01-17 | 2017-05-31 | 内蒙古农业大学 | A kind of high barrier biodegradable mulch film and preparation method thereof |
| CN108260451A (en) * | 2018-01-18 | 2018-07-10 | 浙江大学 | It is a kind of can weeding Biodegradable mulch |
| CN108690333A (en) * | 2018-04-09 | 2018-10-23 | 南通华盛高聚物科技股份有限公司 | A kind of biodegradable mulch of high-barrier and preparation method thereof |
| CN109694557A (en) * | 2018-12-20 | 2019-04-30 | 上海昶法新材料有限公司 | A kind of degradable cover film and preparation method thereof for refuse landfill |
| CN109694556A (en) * | 2018-12-20 | 2019-04-30 | 上海昶法新材料有限公司 | A kind of biodegradable master batch for agricultural film of weeding and preparation method thereof |
| CN109762308A (en) * | 2018-12-20 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of biodegradable agricultural film of weeding and preparation method thereof |
| CN111418420A (en) * | 2020-05-12 | 2020-07-17 | 合肥佛斯德新材料科技有限公司 | Biodegradable mulching film |
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| CN1088225A (en) * | 1992-12-18 | 1994-06-22 | 中国国际科技促进会 | Vegetable fibre film product and technology thereof |
| CN1251068A (en) * | 1997-03-27 | 2000-04-19 | 克洛佩塑料产品公司 | Cloth-like totally biodegradable and/or compostable composites and method of mfg. same |
| CN101828495A (en) * | 2010-04-09 | 2010-09-15 | 常州百利基生物材料科技有限公司 | Biodegradable mulch with compound function |
| CN103213363A (en) * | 2013-03-19 | 2013-07-24 | 朱义珍 | Agricultural film |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088225A (en) * | 1992-12-18 | 1994-06-22 | 中国国际科技促进会 | Vegetable fibre film product and technology thereof |
| CN1251068A (en) * | 1997-03-27 | 2000-04-19 | 克洛佩塑料产品公司 | Cloth-like totally biodegradable and/or compostable composites and method of mfg. same |
| CN101828495A (en) * | 2010-04-09 | 2010-09-15 | 常州百利基生物材料科技有限公司 | Biodegradable mulch with compound function |
| CN103213363A (en) * | 2013-03-19 | 2013-07-24 | 朱义珍 | Agricultural film |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017066883A1 (en) * | 2015-10-21 | 2017-04-27 | 9298-6876 Quebec Inc. | Bio-polymer mulch film and process for manufacturing same |
| CN105647218A (en) * | 2016-03-11 | 2016-06-08 | 童思佳 | Biomass straw mulch and production method thereof |
| CN106750564A (en) * | 2017-01-17 | 2017-05-31 | 内蒙古农业大学 | A kind of high barrier biodegradable mulch film and preparation method thereof |
| CN106750564B (en) * | 2017-01-17 | 2019-10-29 | 内蒙古农业大学 | A kind of high barrier biodegradable mulch and preparation method thereof |
| CN108260451A (en) * | 2018-01-18 | 2018-07-10 | 浙江大学 | It is a kind of can weeding Biodegradable mulch |
| CN108690333A (en) * | 2018-04-09 | 2018-10-23 | 南通华盛高聚物科技股份有限公司 | A kind of biodegradable mulch of high-barrier and preparation method thereof |
| CN109694557A (en) * | 2018-12-20 | 2019-04-30 | 上海昶法新材料有限公司 | A kind of degradable cover film and preparation method thereof for refuse landfill |
| CN109694556A (en) * | 2018-12-20 | 2019-04-30 | 上海昶法新材料有限公司 | A kind of biodegradable master batch for agricultural film of weeding and preparation method thereof |
| CN109762308A (en) * | 2018-12-20 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of biodegradable agricultural film of weeding and preparation method thereof |
| CN111418420A (en) * | 2020-05-12 | 2020-07-17 | 合肥佛斯德新材料科技有限公司 | Biodegradable mulching film |
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