CN103555342B - A kind of preparation method of liquid alga mulch film - Google Patents
A kind of preparation method of liquid alga mulch film Download PDFInfo
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Abstract
The preparation method that the present invention provides a kind of liquid alga mulch film, is characterized in: comprise the following steps: 1, by dry Thallus Laminariae (Thallus Eckloniae) shearing-crushing, be soaked in water；2, in the Thallus Laminariae (Thallus Eckloniae) soaked, sodium bicarbonate is added, when 50-90 DEG C agitating heating 1-3 hour；3, colloid mill is crossed, filter pressing or centrifugal, the alginic acid solution that it is main active with alginic acid and mannitol that gained liquid is；4, by weight sodium carboxymethyl cellulose 3 parts, 2 parts of ferrous sulfate, 2 parts of dispensings of potassium sulfate, and mix homogeneously, it is slowly added in 200 parts of tap waters under stirring, opens and be steam heated to 70-90 DEG C, all dissolve to sodium carboxymethyl cellulose, obtain carboxymethylcellulose sodium solution；5, sodium alginate soln: add carboxymethylcellulose sodium solution, potassium humate and a small amount of OP-10, glycerol, sodium benzoate。The mulch film made is biodegradable, makes material and selects rationally, and manufacture method is simple, the good heat insulating of mulch film。
Description
Technical field
The invention belongs to agricultural mulching manufacturing technology, the preparation method relating to marine organism material, the specifically preparation method of a kind of liquid alga mulch film。
Background technology
Along with the continuous propelling of Derived from Agricultural Modernization, currently used mulch film has become the important means guaranteeing agricultural year stable yields。Covering with ground sheeting has the critical function of water conservation fertilizer conservation, heat and moisture preserving, and mulch film can make China's planting area move northward 3-5 latitude, makes crop generally increase production 30%-50%。The consumption that makes of mulch film is also being substantially increased trend, and according to statistics, it makes consumption increase to 107.8 ten thousand tons in 2008 from 31.9 ten thousand tons of 1991, adds 3 times, and area coverage was from 1.5 ten thousand hm of 19812Increase to 15,610,000 hm of 20082, add more than 1000 times。But, ground membrane material is plastics, belongs to macromolecular compound, it is extremely difficult to degraded, and neither by microbial attack, without decomposing voluntarily, its degradation cycle is generally 200-300。" white pollution " that mulch film residual causes is another big public hazards in the farmland after chemical fertilizer, pesticide, herbicide。Life-time service mulch film can cause in soil that residual film increases, and Soil structure destroys, and hinders the crop root absorption to moisture, reduces soil fertility, even causes subsoil water to ooze under being difficult to, Pedotransfer function etc., the sustainable development of serious threat China agricultural。
How preparing degradable mulch by animal nutrition, the function such as heat and moisture preserving reaching existing polymer plastic film, is problems faced of the present invention。
Summary of the invention
The present invention solves the problems referred to above that prior art exists, it is provided that the preparation method of a kind of liquid alga mulch film, the mulch film of making is biodegradable, makes material and selects rationally, and manufacture method is simple, the good heat insulating of mulch film。
It is an object of the invention to be achieved through the following technical solutions: the preparation method of a kind of liquid alga mulch film, it is characterised in that comprise the following steps:
(1) preparation of sodium alginate soln
A, by dry Thallus Laminariae (Thallus Eckloniae) shearing-crushing, by dry Thallus Laminariae (Thallus Eckloniae): the weight ratio of water=1:18-22 is soaked in water 1-1.5 hour；
B, in the Thallus Laminariae (Thallus Eckloniae) soaked, add sodium bicarbonate, the 0.8%-1.5% that sodium bicarbonate makes consumption be Thallus Laminariae (Thallus Eckloniae) and water gross weight, when 50-90 DEG C agitating heating 1-3 hour；
C, excessively colloid mill, filter pressing or centrifugal；
The alginic acid solution that it is main active with alginic acid and mannitol that D, gained liquid are。
(2) preparation of carboxymethylcellulose sodium solution
By weight sodium carboxymethyl cellulose 3 parts, 2 parts of ferrous sulfate, 2 parts of dispensings of potassium sulfate, and mix homogeneously, it is slowly added in 200 parts of tap waters under stirring, opens and be steam heated to 70-90 DEG C, all dissolve to sodium carboxymethyl cellulose, obtain carboxymethylcellulose sodium solution。
(3) preparation of liquid alga mulch film
Sodium alginate soln: 51.5%-90%
The carboxymethylcellulose sodium solution of concentration 1.5%: 10%-30%
Potassium humate: 5%-15%
OP-10:3 ‰-5 ‰
Glycerol: 1%-3%
Sodium benzoate: 1 ‰-2 ‰。
Improvement to technique scheme:
In described step (3), optimum ratio is
Sodium alginate soln: 60%-80%
The carboxymethylcellulose sodium solution of concentration 1.5%: 15%-20%
Potassium humate: 10%-15%
OP-10:3 ‰-5 ‰
Glycerol: 1%-3%
Sodium benzoate: 1 ‰-2 ‰。
Preferred version one to technique scheme:
In described step (3), optimum ratio is:
Sodium alginate soln 78%
The carboxymethylcellulose sodium solution of concentration 1.5%: 10%
Potassium humate: 10%
OP-10:2 ‰
Glycerol: 1.6%
Sodium benzoate: 2 ‰。
Preferred version two to technique scheme:
In described step (3), optimum ratio is:
Sodium alginate soln 60%
The carboxymethylcellulose sodium solution of concentration 1.5%: 22%
Potassium humate: 15%
OP-10:4 ‰
Glycerol: 2.5%
Sodium benzoate: 1 ‰。
Preferred version three to technique scheme:
In described step (3), optimum ratio is:
Sodium alginate soln: 51.5%
The carboxymethylcellulose sodium solution of concentration 1.5%: 30%
Potassium humate: 15%
OP-10:3 ‰
Glycerol: 3%
Sodium benzoate: 2 ‰。
Present invention advantage compared with prior art and having the benefit effect that
The sequestering system that in the present invention, Sargassum polysaccharides, sodium carboxymethyl cellulose and humic acids etc. are formed can form a kind of natural protecting film, plays effect of insulation water conservation；In addition, what sodium alginate and humic acids were formed is a kind of natural soil conditioner, the formation of soil aggregate can be promoted, improve soil internal void space, coordinate solid, liquid, gas proportions in soil, recover due to soil that over-burden and chemical contamination and the lac balance that loses, increase geobiont vigor, effectively reduce the white soil pollution that causes of mulch film。The mulch film that the present invention makes is biodegradable, induction period of degrading: 60-90 days, Product Green, safe and pollution-free。Making material and select rationally, manufacture method is simple, the heat-insulating property of mulch film: 10-20cm heats 3-5 DEG C。
Detailed description of the invention
The specific embodiment that the present invention prepares alga fertilizer is as follows:
Embodiment 1:
(1) preparation of sodium alginate soln
A, by dry Thallus Laminariae (Thallus Eckloniae) shearing-crushing, by dry Thallus Laminariae (Thallus Eckloniae): the weight ratio of water=1:18 is soaked in water 1 hour；
B, to soak Thallus Laminariae (Thallus Eckloniae) in add sodium bicarbonate, its make consumption be Thallus Laminariae (Thallus Eckloniae) and water gross weight 1.5%, the agitating heating 3 hours when 50 DEG C；
C, excessively colloid mill, filter pressing or centrifugal；
The alginic acid solution that it is main active with alginic acid and mannitol that D, gained liquid are；
(2) preparation of carboxymethylcellulose sodium solution
By weight sodium carboxymethyl cellulose 1.5 kilograms, 1 kilogram of ferrous sulfate, 1 kilogram of dispensing of potassium sulfate, and mix homogeneously, it is slowly added in 200 kilograms of tap waters under stirring, opens and be steam heated to 70 DEG C, all dissolve to sodium carboxymethyl cellulose, obtain carboxymethylcellulose sodium solution。
(3) preparation of liquid alga mulch film
Sodium alginate soln: 78%
The carboxymethylcellulose sodium solution of concentration 1.5%: 10%
Potassium humate: 10%
OP-10:2 ‰
Glycerol: 1.6%
Sodium benzoate: 2 ‰
Embodiment 2:
(1) preparation of sodium alginate soln
A, by dry Thallus Laminariae (Thallus Eckloniae) shearing-crushing, by dry Thallus Laminariae (Thallus Eckloniae): the weight ratio of water=1:20 is soaked in water 1 hour；
B, to soak Thallus Laminariae (Thallus Eckloniae) in add sodium bicarbonate, its make consumption be Thallus Laminariae (Thallus Eckloniae) and water gross weight 1%, the agitating heating 2 hours when 70 DEG C；
C, excessively colloid mill, filter pressing or centrifugal；
The alginic acid solution that it is main active with alginic acid and mannitol that D, gained liquid are；
(2) preparation of carboxymethylcellulose sodium solution
By weight sodium carboxymethyl cellulose 1.5 kilograms, 1 kilogram of ferrous sulfate, 1 kilogram of dispensing of potassium sulfate, and mix homogeneously, it is slowly added in 200 kilograms of tap waters under stirring, opens and be steam heated to 70-90 DEG C, all dissolve to sodium carboxymethyl cellulose, obtain carboxymethylcellulose sodium solution。
(3) preparation of liquid alga mulch film
Sodium alginate soln: 60%
The carboxymethylcellulose sodium solution of concentration 1.5%: 22%
Potassium humate: 15%
OP-10:4 ‰
Glycerol: 2.5%
Sodium benzoate: 1 ‰
Embodiment 3:
(1) preparation of sodium alginate soln
A, by dry Thallus Laminariae (Thallus Eckloniae) shearing-crushing, by dry Thallus Laminariae (Thallus Eckloniae): the weight ratio of water=1:22 is soaked in water 1.5 hours；
B, to soak Thallus Laminariae (Thallus Eckloniae) in add sodium bicarbonate, its make consumption be Thallus Laminariae (Thallus Eckloniae) and water gross weight 0.8%, the agitating heating 1 hour when 90 DEG C；
C, excessively colloid mill, filter pressing or centrifugal；
The alginic acid solution that it is main active with alginic acid and mannitol that D, gained liquid are；
(2) preparation of carboxymethylcellulose sodium solution
By weight sodium carboxymethyl cellulose 1.5 kilograms, 1 kilogram of ferrous sulfate, 1 kilogram of dispensing of potassium sulfate, and mix homogeneously, it is slowly added in 200 kilograms of tap waters under stirring, opens and be steam heated to 90 DEG C, all dissolve to sodium carboxymethyl cellulose, obtain carboxymethylcellulose sodium solution。
(3) preparation of liquid alga mulch film
Sodium alginate soln: 51.5%
The carboxymethylcellulose sodium solution of concentration 1.5%: 30%
Potassium humate: 15%
OP-10:3 ‰
Glycerol: 3%
Sodium benzoate: 2 ‰
Using method of the present invention: product after planting, is diluted 3-6 times by level land, is uniformly sprayed on crop seeding belt, and land for growing field crops makes consumption be every mu 10-20 kilogram。
After product of the present invention uses, physical property changes: (Chengyang, Qingdao)
Test index 0 day 30 days 60 days 90 days
Tensile load (N) 2.731.680.870
Hot strength (MPa) 4.232.961.720
Elongation at break (%) 306.618.78.290
Certainly, described above is not limitation of the present invention, and the present invention is not limited to the example above, those skilled in the art, in the essential scope of the present invention, and change, remodeling, interpolation or the replacement made, all should belong to protection scope of the present invention。
Claims (1)
1. the preparation method of a liquid alga mulch film, it is characterised in that comprise the following steps:
(1) preparation of sodium alginate soln
A, by dry Thallus Laminariae (Thallus Eckloniae) shearing-crushing, by dry Thallus Laminariae (Thallus Eckloniae): the weight ratio of water=1:18-22 is soaked in water 1-1.5 hour；
B, in the Thallus Laminariae (Thallus Eckloniae) soaked, add sodium bicarbonate, the 0.8%-1.5% that sodium bicarbonate makes consumption be Thallus Laminariae (Thallus Eckloniae) and water gross weight, when 50-90 DEG C agitating heating 1-3 hour；
C, excessively colloid mill, filter pressing or centrifugal；
The sodium alginate soln that it is main active with sodium alginate and mannitol that D, gained liquid are；
(2) preparation of carboxymethylcellulose sodium solution
By weight sodium carboxymethyl cellulose 3 parts, 2 parts of ferrous sulfate, 2 parts of dispensings of potassium sulfate, and mix homogeneously, it is slowly added in 200 parts of tap waters under stirring, opens and be steam heated to 70-90 DEG C, all dissolve to sodium carboxymethyl cellulose, obtain carboxymethylcellulose sodium solution；
(3) preparation of liquid alga mulch film
Sodium alginate soln 78%
The carboxymethylcellulose sodium solution of concentration 1.5%: 10%
Potassium humate: 10%
OP-10:2 ‰
Glycerol: 1.6%
Sodium benzoate: 2 ‰。
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| CN105753599A (en) * | 2015-11-26 | 2016-07-13 | 中国海洋大学 | Total-alga biological mulching film and method for preparing same |
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| CN105503482A (en) * | 2016-01-25 | 2016-04-20 | 陈一坚 | Liquid alga fertilizer mulching film powder and using method thereof |
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| CN1057895C (en) * | 1996-07-31 | 2000-11-01 | 北京农业工程大学 | Technique for wet-laying mulch film |
| CN1195044C (en) * | 2002-06-10 | 2005-03-30 | 中国农业大学 | A liquid state mulching film forming material and method for preparing same |
| TW592629B (en) * | 2003-02-26 | 2004-06-21 | Yuen Foong Yu Paper Mfg Co Ltd | The manufacturing method for a plant fiber mulching mat |
| JP2008035860A (en) * | 2006-07-14 | 2008-02-21 | Shiraishi Calcium Kaisha Ltd | Mulch film substitute for agriculture, method for producing the same and production kit |
| 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 |
| CN102477304A (en) * | 2010-11-27 | 2012-05-30 | 中国科学院兰州化学物理研究所 | Degradable composite liquid mulching film and preparation method thereof |
| CN102154016A (en) * | 2011-01-07 | 2011-08-17 | 张仁杰 | Liquid mulching film and producing and film forming methods |
| CN102212214B (en) * | 2011-02-11 | 2012-10-10 | 北京雷力农用化学有限公司 | Biodegradable algae liquid plastic film and preparation method thereof |
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Address after: 266000 No. 127 Huizhiqiao Road, Qingdao High-tech Zone, Shandong Province Patentee after: Qingdao Haida biological Group Co.,Ltd. Patentee after: Weihai Wenxi Biotechnology Co., Ltd Address before: 266003 Shandong province Qingdao City fish Road No. 5 Patentee before: QINGDAO SEAWIN BIOTECH GROUP Co.,Ltd. Patentee before: Weihai Wenxi Biotechnology Co., Ltd |