CN1935878A - Multifunctional degradable liquid-state mulch film and its preparing method - Google Patents
Multifunctional degradable liquid-state mulch film and its preparing method Download PDFInfo
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- CN1935878A CN1935878A CN 200610017265 CN200610017265A CN1935878A CN 1935878 A CN1935878 A CN 1935878A CN 200610017265 CN200610017265 CN 200610017265 CN 200610017265 A CN200610017265 A CN 200610017265A CN 1935878 A CN1935878 A CN 1935878A
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Abstract
The invention relates to multifunction degradable pollutant liquid mulching film and its preparation method. It includes the following steps: using the degradability of the polyvinyl alcohol and starch, the water retention property of the acrylic acid polymer to synthesize starch group polymer; diluting by water to spray for forming. The mulching film has the advantages of convenient using, low cost, preventing water content from evaporating, degradable, wide application range such as agriculture production, forestation etc.
Description
Technical field
The present invention relates to a kind of liquid-state mulch film and preparation method thereof, particularly a kind of multifunction degradable liquid ground film and preparation method thereof.
Background technology
In agriculture production, for improving output, increase economic benefit, the plastic film technology is widely used.But because the plastic film non-degradable, a large amount of uses have caused the havoc of ecotope.Therefore be badly in need of a kind ofly can replacing plastic film, do not produce the substitute of ecological environmental pollution simultaneously.
Chinese patent CN1232857, CN1415698 all disclose a kind of bitumen emulsion as liquid-state mulch film, owing to contain a large amount of pitches, this liquid ground film can cause secondary pollution after using, and pitch cost height, are difficult to promote.
Chinese patent CN1445275 discloses a kind of liquid-state mulch film of polyvinyl alcohol modification, but this emulsion monomer concentration is lower, brings difficulty to Product transport.
Summary of the invention
The objective of the invention is to develop a kind of multifunctional degradable liquid-state mulch film easy to use, with low cost.
A kind of multifunctional degradable liquid-state mulch film of the present invention, its starting material and quality proportioning are:
Starch is 4～8%;
Vinylformic acid is 5～15%;
Neutralizing agent is 4～11%, and neutralizing agent is potassium hydroxide or sodium hydroxide;
Polyvinyl alcohol is 5～10%;
Linking agent is 0.01～0.05%, and linking agent is for being N,N methylene bis acrylamide;
Chain-transfer agent is 0.5～1%, and chain-transfer agent is for being sodium formiate;
Initiator is 0.05～0.15%, and initiator is ammonium persulphate or Potassium Persulphate;
Water is 65～75%, and used water does not have purity requirement, and ordinary tap water gets final product.
All raw material quality proportioning sums are 100%.
Preparation method's of the present invention step and condition are:
At first the quality proportioning be 4～8% starch to be dispersed in the quality proportioning be that gelatinization is 30～45 minutes under 70～90 ℃ of conditions in 65～75% the water, after cooling, add the quality proportioning and be 5～15% vinylformic acid; Add the quality proportioning again and be 4～11% neutralizing agent neutralization, neutralizing agent is potassium hydroxide or sodium hydroxide; Add the quality proportioning then and be 5～10% polyvinyl alcohol; Adding the quality proportioning again and be 0.01～0.05% linking agent is N,N methylene bis acrylamide; Add the quality proportioning again and be 0.5～1% chain-transfer agent sodium formiate; Add the quality proportioning at last and be 0.05～0.15% initiator, initiator is ammonium persulphate or Potassium Persulphate; Gained solution stirs polyase 13～5 hour at 45～55 ℃ of down logical nitrogen, a kind of multifunctional degradable liquid-state mulch film.After the cooling of this polymkeric substance, can also be as required, thin up prepare the dilute solution of different ratios, sprinkling film forming.
The product monomer concentration height of gained of the present invention, high monomer concentration can reach 35%, is convenient to transportation; Dispersing property excellence in water is convenient to spray film forming simultaneously.Since added little amount of crosslinking agent, water insoluble after the product film forming.This mulch film forms film at soil surface after spray method is sprayed at the face of land, the soil moisture conservation effect is arranged, and has not only effectively prevented moisture evaporation, and has not hindered the seedling of plant to pass rete.This mulch film has degradability, can be used as fertilizer after the degraded, for crop absorption.
Mulch film of the present invention can be widely used in agriculture production, sand control afforestation, planting trees and grass, conserve water and soil, and alkaline land improving, promotes that crop early sends out at the road bank protection.Can reduce soil water evaporation, to improving the crop surviving rate and suppressing face of land sand significant effect is arranged, and its cost be lower.
The present invention utilizes the degradability of polyvinyl alcohol and starch, the water-retentivity of acrylate copolymer, and synthetic a kind of starch-based polymer behind the products therefrom dilute with water, can spray film forming.
Embodiment
Embodiment 1
10 gram starch are distributed in the 140 gram water, under 85 ℃ of conditions, stir gelatinization 35 minutes, after the cooling of gelatinization thing, add vinylformic acid 20 grams, with potassium hydroxide 16 gram neutralizations, add polyvinyl alcohol 14 grams then, ammonium persulphate 0.2 gram, N, N-methylene-bisacrylamide 0.06 gram, sodium formiate 1.2 gram, gained solution stirs polyase 13s hour in 45 ℃ of down logical nitrogen, a kind of multifunctional degradable liquid of the present invention ground.Monomer whose concentration is 30%.
Embodiment 2
8 gram starch are distributed in the 130 gram water, under 70 ℃ of conditions, stir gelatinization 45 minutes, after the cooling of gelatinization thing, add vinylformic acid 30 grams, with sodium hydroxide 22 gram neutralizations, add polyvinyl alcohol 10 grams then, Potassium Persulphate 0.3 gram, N, N-methylene-bisacrylamide 0.1 gram, sodium formiate 2 grams, gained solution stirs polymerization 5 hours in 50 ℃ of down logical nitrogen, gets a kind of multifunctional degradable liquid of the present invention ground.Monomer whose concentration is 35%.
Embodiment 3
16 gram starch are distributed in the 144 gram water, under 90 ℃ of conditions, stir gelatinization 30 minutes, after the cooling of gelatinization thing, add vinylformic acid 10 grams, with potassium hydroxide 8 gram neutralizations, add polyvinyl alcohol 20 grams then, ammonium persulphate 0.1 gram, N, N-methylene-bisacrylamide 0.02 gram, sodium formiate 1 gram, gained solution stirs polymerization 4 hours in 55 ℃ of down logical nitrogen, gets a kind of multifunctional degradable liquid of the present invention ground.Monomer whose concentration is 28%.
Embodiment 4
10 gram starch are distributed in the 150 gram water, under 85 ℃ of conditions, stir gelatinization 40 minutes, after the cooling of gelatinization thing, add vinylformic acid 11 grams, with potassium hydroxide 9 gram neutralizations, add polyvinyl alcohol 20 grams then, ammonium persulphate 0.1 gram, N, N-methylene-bisacrylamide 0.04 gram, sodium formiate 1 gram, gained solution stirs polymerization 5 hours in 55 ℃ of down logical nitrogen, gets a kind of multifunctional degradable liquid of the present invention ground.Monomer whose concentration is 25%.
Embodiment 5
12 gram starch are distributed in the 142 gram water, under 80 ℃ of conditions, stir gelatinization 35 minutes, after the cooling of gelatinization thing, add vinylformic acid 16 grams, with potassium hydroxide 12 gram neutralizations, add polyvinyl alcohol 18 grams then, Potassium Persulphate 0.2 gram, N, N-methylene-bisacrylamide 0.08 gram, sodium formiate 1.5 gram, gained solution stirs polyase 13s hour in 50 ℃ of down logical nitrogen, a kind of multifunctional degradable liquid of the present invention ground.Monomer whose concentration is 29%.
Claims (2)
1. a multifunction degradable liquid ground film is characterized in that, its starting material and quality proportioning are:
Starch is 4～8%;
Vinylformic acid is 5～15%;
Neutralizing agent is 4～11%, and neutralizing agent is potassium hydroxide or sodium hydroxide;
Polyvinyl alcohol is 5～10%;
Linking agent is 0.01～0.05%, and linking agent is for being N,N methylene bis acrylamide;
Chain-transfer agent is 0.5～1%, and chain-transfer agent is for being sodium formiate;
Initiator is 0.05～0.15%, and initiator is ammonium persulphate or Potassium Persulphate;
Water is 65～75%; Used water is ordinary tap water.
All raw material quality proportioning sums are 100%.
2. the preparation method of a kind of multifunction degradable liquid ground film as claimed in claim 1, it is characterized in that, be the quality proportioning that to be dispersed in the quality proportioning be in 65～75% the water for 4～8% starch at first, gelatinization is 30～45 minutes under 70～90 ℃ of conditions, after cooling, adding quality proportioning is 5～15% vinylformic acid; Add the quality proportioning again and be 4～12% neutralizing agent neutralization, neutralizing agent is potassium hydroxide or sodium hydroxide; Add the quality proportioning then and be 5～10% polyvinyl alcohol; Adding the quality proportioning again and be 0.01～0.05% linking agent is N,N methylene bis acrylamide; Add the quality proportioning again and be 0.5～1% chain-transfer agent sodium formiate; Add the quality proportioning at last and be 0.05～0.15% initiator, initiator is ammonium persulphate or Potassium Persulphate; Gained solution stirs polyase 13～5 hour at 45～55 ℃ of down logical nitrogen, a kind of multifunctional degradable liquid-state mulch film.
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| CNB2006100172658A CN100443529C (en) | 2006-10-20 | 2006-10-20 | Multifunctional degradable liquid-state mulch film and its preparing method |
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| CNB2006100172658A CN100443529C (en) | 2006-10-20 | 2006-10-20 | Multifunctional degradable liquid-state mulch film and its preparing method |
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| CN100443529C CN100443529C (en) | 2008-12-17 |
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Cited By (20)
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| CN101402794B (en) * | 2008-11-19 | 2010-08-25 | 中国科学院遗传与发育生物学研究所 | Multifunctional degradable liquid mulch film, production method and uses thereof |
| CN101508895B (en) * | 2009-03-17 | 2012-07-04 | 北京鸿森鹏程生态农业科技股份有限公司 | Agricultural water-loss reducer and production process |
| ITPD20110129A1 (en) * | 2011-04-18 | 2012-10-19 | Agrifoglio S A S | COMPOSITIONS FOR AGRICULTURAL USE |
| CN102775969A (en) * | 2012-07-23 | 2012-11-14 | 北京中科日升科技有限公司 | Multifunctional filtrate reducer and preparation method thereof |
| CN103098678A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳应用生态研究所 | Field mechanization application method capable of degrading liquid mulching film |
| CN101735420B (en) * | 2008-11-20 | 2013-12-04 | 中国农业科学院农业环境与可持续发展研究所 | Preparation method and application method of biomass liquid agricultural membrane material |
| CN103742186A (en) * | 2014-01-21 | 2014-04-23 | 山东科技大学 | Gel foam for coal seam fire control |
| CN104109262A (en) * | 2014-06-30 | 2014-10-22 | 安徽巢湖南方膜业有限责任公司 | Thermoplastic starch-polyvinyl alcohol composite plastic film |
| CN104804355A (en) * | 2015-01-19 | 2015-07-29 | 四川师范大学 | Biodegradable agricultural liquid mulching film and preparation method thereof |
| CN105218870A (en) * | 2015-10-30 | 2016-01-06 | 太仓市天合新材料科技有限公司 | A kind of biological degradation agricultural mulching novel material |
| CN105330954A (en) * | 2015-12-14 | 2016-02-17 | 民勤县邦德贸易有限公司 | Weather-proof resin master batch for agricultural plastic mulching film synthesis and preparation method |
| CN105419195A (en) * | 2016-01-25 | 2016-03-23 | 何辉海 | Degradable liquid mulching film with deinsectization function and preparation method thereof |
| CN105713620A (en) * | 2016-01-25 | 2016-06-29 | 陈一坚 | Liquid fertilizer mulching film with high water retention and method for preparing liquid fertilizer mulching film |
| CN106472189A (en) * | 2016-10-25 | 2017-03-08 | 宁夏大学 | Biofluid mulch film and its production method for industrialized agriculture Long summer cultivation |
| CN106489630A (en) * | 2016-10-25 | 2017-03-15 | 宁夏大学 | Degradable biological base fluid body plastic film for agricultural use and its production method |
| CN109845551A (en) * | 2019-01-18 | 2019-06-07 | 甘肃省农业科学院旱地农业研究所 | A kind of degradable liquid-state mulch film and its application method |
| CN111154148A (en) * | 2020-02-20 | 2020-05-15 | 齐鲁工业大学 | Preparation method of waterborne polyurethane modified starch-based liquid mulching film |
| CN111849184A (en) * | 2020-08-14 | 2020-10-30 | 辽宁顺屹农业科技有限公司 | Humic acid and acrylic acid interpenetrating polymer modified liquid mulching film and preparation method thereof |
| CN112724443A (en) * | 2020-12-25 | 2021-04-30 | 宁波大榭开发区综研化学有限公司 | Hydrophilic membrane and preparation method thereof |
| CN113046092A (en) * | 2021-03-23 | 2021-06-29 | 辽宁顺屹农业科技有限公司 | Powder full-biodegradable mulching film and preparation method thereof |
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| US5254607A (en) * | 1991-06-26 | 1993-10-19 | Tredegar Industries, Inc. | Biodegradable, liquid impervious films |
| CN1037515C (en) * | 1993-08-24 | 1998-02-25 | 北京市星辰现代控制工程研究所 | Biodegradable composition containing starch and its producing method and its use |
| US6444744B1 (en) * | 1998-03-11 | 2002-09-03 | Nippon Shokubai Co., Ltd. | Hydrophilic resin, absorbent article, and acrylic acid for polymerization |
| US6720389B2 (en) * | 2000-09-20 | 2004-04-13 | Nippon Shokubai Co., Ltd. | Water-absorbent resin and production process therefor |
| CN1332198A (en) * | 2001-08-28 | 2002-01-23 | 罗萌 | Multifunctional hydrolyzed mulching liquid and its compounding process |
| CN1178984C (en) * | 2002-04-22 | 2004-12-08 | 浙江省农业科学院土壤肥料研究所 | Preparation of polyvinyl alochol modifier-liquid ecological mulchine film |
| CN1331983C (en) * | 2004-06-15 | 2007-08-15 | 西北大学 | Water absorbing and preserving polymer soil protecting net film spray agent and its preparation |
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| CN101402794B (en) * | 2008-11-19 | 2010-08-25 | 中国科学院遗传与发育生物学研究所 | Multifunctional degradable liquid mulch film, production method and uses thereof |
| CN101735420B (en) * | 2008-11-20 | 2013-12-04 | 中国农业科学院农业环境与可持续发展研究所 | Preparation method and application method of biomass liquid agricultural membrane material |
| CN101508895B (en) * | 2009-03-17 | 2012-07-04 | 北京鸿森鹏程生态农业科技股份有限公司 | Agricultural water-loss reducer and production process |
| ITPD20110129A1 (en) * | 2011-04-18 | 2012-10-19 | Agrifoglio S A S | COMPOSITIONS FOR AGRICULTURAL USE |
| CN103098678A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳应用生态研究所 | Field mechanization application method capable of degrading liquid mulching film |
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| CN104109262B (en) * | 2014-06-30 | 2016-04-27 | 安徽巢湖南方膜业有限责任公司 | A kind of thermoplastic starch-polyvinyl alcohol composite plastic film |
| CN104109262A (en) * | 2014-06-30 | 2014-10-22 | 安徽巢湖南方膜业有限责任公司 | Thermoplastic starch-polyvinyl alcohol composite plastic film |
| CN104804355A (en) * | 2015-01-19 | 2015-07-29 | 四川师范大学 | Biodegradable agricultural liquid mulching film and preparation method thereof |
| CN105218870A (en) * | 2015-10-30 | 2016-01-06 | 太仓市天合新材料科技有限公司 | A kind of biological degradation agricultural mulching novel material |
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| CN105419195A (en) * | 2016-01-25 | 2016-03-23 | 何辉海 | Degradable liquid mulching film with deinsectization function and preparation method thereof |
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| CN111154148A (en) * | 2020-02-20 | 2020-05-15 | 齐鲁工业大学 | Preparation method of waterborne polyurethane modified starch-based liquid mulching film |
| 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 |
| CN111849184A (en) * | 2020-08-14 | 2020-10-30 | 辽宁顺屹农业科技有限公司 | Humic acid and acrylic acid interpenetrating polymer modified liquid mulching film and preparation method thereof |
| CN112724443A (en) * | 2020-12-25 | 2021-04-30 | 宁波大榭开发区综研化学有限公司 | Hydrophilic membrane and preparation method thereof |
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Owner name: CHANGZHOU INSTITUTE OF ENERGY STORAGE MATERIALS + Free format text: FORMER OWNER: CHANGCHUN INST. OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES Effective date: 20130930 |
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Effective date of registration: 20130930 Address after: Changzhou City, Jiangsu province Hehai road 213000 No. 9 Patentee after: Changzhou Institute of Energy Storage Materials & Devices Address before: 130022 Changchun people's street, Jilin, No. 5625 Patentee before: Changchun Institue of Applied Chemistry, Chinese Academy of Sciences |