CN106489630A - Degradable biological base fluid body plastic film for agricultural use and its production method - Google Patents

Degradable biological base fluid body plastic film for agricultural use and its production method Download PDF

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Publication number
CN106489630A
CN106489630A CN201610936181.8A CN201610936181A CN106489630A CN 106489630 A CN106489630 A CN 106489630A CN 201610936181 A CN201610936181 A CN 201610936181A CN 106489630 A CN106489630 A CN 106489630A
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China
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sulfuric acid
acid monoester
dichloroethanes
mixed liquor
biological base
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Inventor
张雪艳
尹应武
张雪
孙瑞
田蕾
马国东
罗秋芬
祁娟霞
刘馨
游诗尧
周海霞
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TH-UNIS Insight Co., Ltd.
Xiamen University
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Ningxia University
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/02Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256Ground coverings
    • A01G13/0268Mats or sheets, e.g. nets or fabrics
    • A01G13/0275Films
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08Cellulose derivatives
    • C08L1/16Esters of inorganic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/14Hemicellulose; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00Compositions of lignin-containing materials
    • C08L97/005Lignin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/06Biodegradable
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/16Applications used for films
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

A kind of composition of degradable biological base fluid body plastic film for agricultural use includes cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, water, also includes humic acid sulfuric acid monoester salt;The present invention also provides a kind of production method of degradable biological base fluid body plastic film for agricultural use.Bio-based agricultural liquid film can keep the temperature and humidity of rhizosphere relative constancy, high temperature season death rate can be reduced, promote plant photosynthetic and underground part root system development, reduce the generation of virosiss, and the bio-based agricultural liquid film contains multiple natural activity groups and heterogeneous phenolic compound, microbial degradation in easily by soil, and the humic acid in catabolite can increase soil aggregate, keep the balance of Trace Elements in Soil.

Description

Degradable biological base fluid body plastic film for agricultural use and its production method
Technical field
The present invention relates to field of agricultural production technologies, more particularly to a kind of degradable biological base fluid body plastic film for agricultural use and its life Product method.
Background technology
With the continuous development and the modernization of agricultural production of agricultural cience and farming techniques, industrialized agriculture is rapidly growing in China, Main Types of the greenhouse as industrialized agriculture, with obvious Social benefit and economic benefit, thus have obtained extensively in China Application.
The growth cycle of plant is longer, such as Fructus Lycopersici esculenti, plucks from transplanting to and finishes the time for needing 5 months, and the collecting period is big General is 60~80 days.If Fructus Lycopersici esculenti wants harvesting mid-October, then general mid-July will be planted in warmhouse booth.
Traditional chamber crop plantation needs ridging, then covers layer of plastic film on ridge, and then digs on ridge Cave, finally by plant cultivating in cave.The Main Function of plastic sheeting is moisture-heat preservation, can be plant typically in spring, autumn, winter Growth play well effect.According to document《Impact of the plastic-film-covered cultivation to corn yield》Statistics, the corn yield ratio of overlay film is not The corn yield of overlay film is high by 8.43%.But in summer, as ambient temperature is higher, sunshine is strong, the soil under covered rearing with plastic film Layer temperature is very high.And the Root-zone heating of plant suitable growth is typically in the range of 15~30 degrees Celsius.If plant is in the summer Season plants, due to plant stem-leaf less, it is impossible to for root sunshade, the Root-zone heating of plant can easily exceed preference temperature;Meanwhile, As the rhizome of plant seedlings is more fragile, young root easily necrosis at high temperature ultimately results in the rising of crop death rate.If Crop not plastic covering thin film, then October, November ambient temperature reduce, and the insulating power of soil layer is poor, especially exists Night, this can cause Root-zone heating again less than preference temperature, so as to slow down plant growth;The simultaneously soil layer of not plastic covering thin film Than very fast, water loss is unfavorable for that soil layer moisturizing, weeds in exposed soil layer are relatively easy to grow.
From for the angle of environmental protection, peasant is just collected using easily collected after 1 year generally for convenient management, mulch film After light, do not collect, just rotten in the ground, so can all cause environmental problem.The ground of current China Plastic-film pollution most serious Side will count the cotton planting district in Xinjiang.A research report that announces for 2008 shows, in the cotton field of Xinjiang region, mulch film residual quantity Average 265.3 kilograms of per hectare, and as the overlay film time limit is longer, pollute more serious.In Xinjiang, continuous overlay film 10 years, 15 years With the cotton field of 20 years, mulch film residual quantity respectively 262 kilograms/hectare, 350 kilograms/hectare, 430 kilograms/hectare, most serious were dirty Dye field agricultural mulching residual quantity is up to 597 kilograms/hectare.Generally, if mulch film will be spread to 1 hectare of land, make About 60 kilograms of consumption, 597 kilograms of mulch film residual quantity is equivalent to having stored 10 layers of mulch film in ground.After seed sowing If just on fragment, just had an impact to its germination, the phenomenon being short of seedling may be very serious, causes the underproduction.In addition meeting The migration of moisture and nutrient is had influence on, the growth of crop root system is had an impact.According to surveying and determination, the with serious pollution soil of residual film can make Wheat yield declines 2%~3%, and corn yield declines 10% or so, and output of cotton then declines 10%~23%.
Content of the invention
In view of this, it is necessary to which a kind of degradable biological base fluid body plastic film for agricultural use is provided.
There is a need to and a kind of production method of degradable biological base fluid body plastic film for agricultural use is provided.
A kind of degradable biological base fluid body plastic film for agricultural use, the composition of the degradable biological base fluid body plastic film for agricultural use include: Cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, water.
A kind of degradable biological base fluid body plastic film for agricultural use, the composition of the degradable biological base fluid body plastic film for agricultural use include: Cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, humic acid sulfuric acid monoester salt, water.
A kind of production method of degradable biological base fluid body plastic film for agricultural use is comprised the following steps:
The straw of powdery, stem are mixed as the first initial biological base manure;
1,2- dichloroethanes are weighed as solvent, the sulfur trioxide of liquid and part 1,2- dichloroethanes are mixed, three oxygen are formed Change sulfur/1,2- dichloroethanes mixing liquids;
Again successively by remainder 1,2- dichloroethanes, the first initial biological base manure are added in sulphonation kettle, and Deca is above-mentioned Sulfur trioxide/1,2- dichloroethanes mixing liquids, control response time and reaction temperature, so that the first initial biological base manure is through sulphur Change reaction and generate the first sulfuric acid monoester, while obtaining the first sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes;
Above-mentioned first sulfuric acid monoester mixed liquor and ammonia or aqua calcises are added in neutralization kettle and are neutralized reaction, shape Into the first sulfuric acid monoester salt mixed liquor, in the first sulfuric acid monoester salt mixed liquor, contain the first sulfuric acid monoester salt;
By method of the first sulfuric acid monoester salt mixed liquor by vacuum distillation, so that 1,2- dichloroethanes are from first sulfur Depart from acid monoester salt mixed liquor, to obtain the first sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes;
The first sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes is carried out being centrifuged, is washed, not contained The filtering residue of the first sulfuric acid monoester salt mixed liquor of 1,2- dichloroethanes and filtrate, do not contain the first of 1,2- dichloroethanes by described The filtrate of sulfuric acid monoester salt mixed liquor is separated by oil water separator, obtains the first sulfuric acid monoester saline solution, by described first Sulfuric acid monoester saline solution is used as bio-based agricultural liquid film.
A kind of production method of degradable biological base fluid body plastic film for agricultural use is comprised the following steps:
The straw of powdery, stem are mixed with weathered coal as the second initial biological base manure;
1,2- dichloroethanes are weighed as solvent, the sulfur trioxide of liquid and part 1,2- dichloroethanes are mixed, three oxygen are formed Change sulfur/1,2- dichloroethanes mixing liquids;
Again successively by remainder 1,2- dichloroethanes, the second initial biological base manure are added in sulphonation kettle, and Deca is above-mentioned Sulfur trioxide/1,2- dichloroethanes mixing liquids, control response time and reaction temperature, so that the second initial biological base manure is through sulphur Change reaction and generate the second sulfuric acid monoester, while obtaining the second sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes;
Above-mentioned second sulfuric acid monoester mixed liquor and ammonia or aqua calcises are added in neutralization kettle and are neutralized reaction, shape Into the second sulfuric acid monoester salt mixed liquor, in the second sulfuric acid monoester salt mixed liquor, contain the second sulfuric acid monoester salt;
By method of the second sulfuric acid monoester salt mixed liquor by vacuum distillation, so that 1,2- dichloroethanes are from the second sulphuric acid list Depart from ester salt mixed liquor, to obtain the second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes;
The second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes is carried out being centrifuged, is washed, not contained The filtering residue of the second sulfuric acid monoester salt mixed liquor of 1,2- dichloroethanes and filtrate, will not contain the second sulphuric acid of 1,2- dichloroethanes The filtrate of monoester salt mixed liquor is separated by oil water separator, obtains the second sulfuric acid monoester saline solution, by second sulphuric acid Monoesters saline solution is used as bio-based agricultural liquid film.
Beneficial effect:
1. derivant of the bio-based agricultural liquid film in the present invention comprising cellulose and lignin, can natural degradation, degraded Material can be used as the slow-release fertilizer of soil, will not be to environment;The artificial work link of picking up thin film is eliminated simultaneously.
2. the conjunctiva light transmittance for being formed after the bio-based agricultural liquid membrance concentration dehydration in the present invention is low, can reduce Root-zone heating, heat and moisture preserving improve the survival rate of plant, while inhibiting the growth of weeds.
3. the life-span of the bio-based agricultural liquid film in the present invention was up to 5~6 months, it is to avoid crop is in growth course Middle bio-based agricultural liquid film rots to fail, and affects plant growth.
4. the conjunctiva opposed plastic thin film for being formed after the bio-based agricultural liquid membrance concentration dehydration in the present invention, paper membrane The viral incidence rate of Long summer cultivation plant can be reduced.
5. the bio-based agricultural liquid film in the present invention, every mu of price as little as 100~130 yuan/mu, and plastic foil price For 160~250 yuan/mu, cost is therefore greatly reduced.
Specific embodiment
In order to be illustrated more clearly that technical scheme, it is described in detail below in conjunction with embodiment.
The embodiment of the present invention proposes a kind of degradable biological base fluid body plastic film for agricultural use, and its composition includes:Cellulose, wooden Element, cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, water.
Used as a kind of preferred embodiment, the embodiment of the present invention also proposes a kind of degradable biological base fluid body plastic film for agricultural use, Its composition includes:Cellulose, hemicellulose, cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester Salt, humic acid sulfuric acid monoester salt, water.
A kind of production method of degradable biological base fluid body plastic film for agricultural use is comprised the following steps:
S101:The straw of powdery, stem are mixed as the first initial biological base manure.
S102:1,2- dichloroethanes are weighed as solvent, the sulfur trioxide of liquid and part 1,2- dichloroethanes are mixed, Form sulfur trioxide/1,2- dichloroethanes mixing liquids.
It should be noted that there is no chemical reaction in the mixing of sulfur trioxide and 1,2- dichloroethanes, 1,2- dichloroethanes It is intended only as solvent.Specifically a kind of operating process is:Sulfur trioxide gaseous mixture is delivered in sulfonation by sulfur trioxide air-introduced machine Test cell, after the condensation of sulfur trioxide condenser, sulfur trioxide gas condensation becomes liquid, fixed gas to sulfur trioxide gaseous mixture Body is emptied;Sulfan drops to the tourie equipped with 1,2- dichloroethanes, so that sulfur trioxide is by 1,2- dichloroethanes Absorb, to obtain sulfur trioxide/1,2- dichloroethanes mixing liquids.
S103:Again successively by remainder 1,2- dichloroethanes, the first initial biological base manure are added in sulphonation kettle, Above-mentioned sulfur trioxide/1 of Deca, 2- dichloroethanes mixing liquids, control response time and reaction temperature, so that the first first eozoon The sulfonated reaction of base manure generates the first sulfuric acid monoester, while obtaining the first sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes.
In this step, solvent of 1, the 2- dichloroethanes as sulfur trioxide so that be dissolved in the three of 1,2- dichloroethanes Sulfur oxide can biological base manure initial with first there is sulfonating reaction quickly so that organic in the first initial biological base manure Matter generates the first sulfuric acid monoester with sulfur trioxide reaction.First sulfuric acid monoester includes:Cellulose sulfate monoesters, hemicellulose Sulfuric acid monoester, lignin sulfuric acid monoester.Response time and reaction temperature in the step can be:Reaction temperature is 10~50 DEG C, preferably 20~40 DEG C, the response time is 1~10h, preferably 3~6h.
S104:Above-mentioned first sulfuric acid monoester mixed liquor and ammonia or aqua calcises are added in carrying out in neutralization kettle And reaction, the first sulfuric acid monoester salt mixed liquor is formed, in the first sulfuric acid monoester salt mixed liquor, contains the first sulfuric acid monoester salt.
First sulfuric acid monoester salt therein includes cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfur Acid monoester salt;The first sulfuric acid monoester salt-mixture mixed liquor refers to a kind of solidliquid mixture comprising sulfuric acid monoester saline solution. Ammonia generates sulfuric acid monoester ammonium with sulfuric acid monoester reaction, and calcium hydroxide generates sulfuric acid monoester calcium with sulfuric acid monoester reaction.
S105:By method of the first sulfuric acid monoester salt mixed liquor by vacuum distillation so that 1,2- dichloroethanes from Depart from the first sulfuric acid monoester salt mixed liquor, to obtain the first sulfuric acid monoester salt mixing for not containing 1,2- dichloroethanes Liquid.
S106:The first sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes is carried out being centrifuged, is washed, with To filtering residue and the filtrate of the first sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes, 1,2-, bis- chloroethenes are not contained by described The filtrate of the first sulfuric acid monoester salt mixed liquor of alkane is separated by oil water separator, obtains the first sulfuric acid monoester saline solution, by institute The first sulfuric acid monoester saline solution is stated as bio-based agricultural liquid film, the composition of the bio-based agricultural liquid film includes cellulose Sulfuric acid monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, water.
Used as a kind of preferably embodiment, the present invention also proposes a kind of degradable biological base fluid body plastic film for agricultural use thing liquid ground film Production method, the method is in the feed and to add weathered coal, and then causes in the biological base manure of production comprising humic acid Sulfuric acid monoester salt component.
A kind of production method of degradable biological base fluid body plastic film for agricultural use is comprised the following steps:
S301:The straw of powdery, stem are mixed with weathered coal as the second initial biological base manure.
S302:1,2- dichloroethanes are weighed as solvent, the sulfur trioxide of liquid and part 1,2- dichloroethanes are mixed, Form sulfur trioxide/1,2- dichloroethanes mixing liquids.
S303:Again successively by remainder 1,2- dichloroethanes, the second initial biological base manure are added in sulphonation kettle, Above-mentioned sulfur trioxide/1 of Deca, 2- dichloroethanes mixing liquids, control response time and reaction temperature, so that the second first eozoon The sulfonated reaction of base manure generates the second sulfuric acid monoester, while obtaining the second sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes.
Wherein, solvent of 1, the 2- dichloroethanes as sulfur trioxide so that be dissolved in the sulfur trioxide energy of 1,2- dichloroethanes Enough there is sulfonating reaction quickly with initial biological base manure, so that the organic matter in initial biology base manure is reacted with sulfur trioxide Generate the second sulfuric acid monoester.Second sulfuric acid monoester includes:Cellulose sulfate monoesters, hemicellulose sulfuric acid monoester, lignin Sulfuric acid monoester, humic acid sulfuric acid monoester.Reaction temperature in the step is 10~50 DEG C, and preferably 20~40 DEG C, the response time is 1 ~10h, preferably 3~6h.
S304:Above-mentioned second sulfuric acid monoester mixed liquor and ammonia or aqua calcises are added in carrying out in neutralization kettle And reaction, the second sulfuric acid monoester salt mixed liquor is formed, in the second sulfuric acid monoester salt mixed liquor, contains the second sulfuric acid monoester salt.
Wherein, the second sulfuric acid monoester salt includes:Cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, wooden Plain sulfuric acid monoester salt, humic acid sulfuric acid monoester salt.The 3rd sulfuric acid monoester salt-mixture mixed liquor refers to a kind of comprising sulphuric acid list The solidliquid mixture of ester saline solution.Ammonia generates sulfuric acid monoester ammonium with sulfuric acid monoester reaction, and calcium hydroxide is reacted with sulfuric acid monoester Generate sulfuric acid monoester calcium.
S305:By method of the second sulfuric acid monoester salt mixed liquor by vacuum distillation so that 1,2- dichloroethanes from Depart from second sulfuric acid monoester salt mixed liquor, to obtain the second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes.
S306:The second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes is carried out being centrifuged, is washed, with To filtering residue and the filtrate of the second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes, 1,2- dichloroethanes will not contained The filtrate of the second sulfuric acid monoester salt mixed liquor is separated by oil water separator, obtains the second sulfuric acid monoester saline solution, by described Two sulfuric acid monoester saline solution include cellulose sulfate as bio-based agricultural liquid film, the composition of the bio-based agricultural liquid film Monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, humic acid sulfuric acid monoester salt, water.
The molding mode of one preferably bio-based agricultural liquid film is:Bio-based agricultural liquid film is put into spray container In, then sprayed according to predetermined per square metre of usage amount in field, natural after biological base fluid body plastic film for agricultural use dehydration Form conjunctiva, it is preferred that bio-based agricultural liquid film conjunctiva is sprayed after 10 days again or irrigated bio-based agricultural liquid film, Make the conjunctiva to be formed more stable.
One preferably can preferably weeding and significantly reduce ground temperature embodiment in, bio-based agricultural liquid film Overlay capacity is 120~180 grams per square metre.
The content of organic matter >=50% after above-mentioned bio-based agricultural liquid film formation conjunctiva, total nutrient >=6%, moisture≤20%, PH value is 5.5~8.5.After especially facility fruit and vegetable growth cycle terminates, the basic decomposition of paper, without decomposition for industrialized agriculture Directly can plough deeply into field, as the composition of bio-based agricultural liquid film includes the derivant of cellulose and lignin, can be natural Degraded, will not be to environment.
Above-mentioned bio-based agricultural liquid film contains multiple natural activity groups and heterogeneous phenolic compound, easily by soil in Humic acid in microbial degradation, and the catabolite of humic acid sulfuric acid monoester salt can increase soil aggregate, keep soil The balance of trace element in earth, therefore can be used as the slow-release fertilizer of soil.Bio-based agricultural liquid film contains natural phenol hydroxyl simultaneously Base and alcoholic extract hydroxyl group, with sequestering and cohesive, can chelate and fix trace element, greatly improve suction of the crop to trace element Receive.
The conjunctiva that above-mentioned bio-based agricultural liquid film is formed in high temperature Long summer cultivation, relative to plastic sheeting, bio-based The conjunctiva that agricultural liquid film is formed can reduce by 3 DEG C of Root-zone heating, relative without covered rearing with plastic film, reduce by 1 DEG C of Root-zone heating, soil Earth humidity and plastic covering mulch film zero difference, but the conjunctiva that bio-based agricultural liquid film is formed can keep rhizosphere soil temperature and humidity Relative constancy.
When the conjunctiva that bio-based agricultural liquid film is formed is used for high temperature Long summer cultivation, death rate can be significantly reduced, wherein Plastic film mulching death rate 25.0%, without the conjunctiva that plastic film mulching death rate 8.45%, bio-based agricultural liquid film are formed Death rate 0.57%.
Through testing, the covering with ground sheeting of conjunctiva opposed plastic and do not cover that bio-based agricultural liquid film is formed significantly can increase Plus plants stems are thick, promote the increase of chlorophyll content, promote crop photosynthesis to strengthen, opposed plastic covering with ground sheeting, using life The conjunctiva that thing base fluid body plastic film for agricultural use is formed can increase stem thick 15~20%, relative without plastic film mulching, using bio-based liquid The conjunctiva that plastic film for agricultural use is formed can increase plants stems thick 8~13%, and opposed plastic covering with ground sheeting is covered with not, using biological base fluid The chlorophyll content of the conjunctiva that body plastic film for agricultural use is formed increases by 12~16%.
Through test, opposed plastic mulch film is planted and is covered, and it is fresh that the conjunctiva that bio-based agricultural liquid film is formed dramatically increases overground part Weigh 65.76%, increase underground part fresh weight 20.86%, underground part fresh weight is without dramatically increasing, but dramatically increases underground part dry weight 8.27%.
The conjunctiva that bio-based agricultural liquid film is formed can promote below root system to grow, opposed plastic covering with ground sheeting, warp Test, total root that the conjunctiva that bio-based agricultural liquid film is formed can dramatically increase 11.68% are long.
With respect to covering with ground sheeting, the conjunctiva that bio-based agricultural liquid film is formed can significantly reduce the virus of Long summer cultivation crop The generation of disease, through test, plastic film mulching virosiss occur 28%, and the conjunctiva virosiss that bio-based agricultural liquid film is formed are sent out Raw 4%.

Claims (8)

1. a kind of degradable biological base fluid body plastic film for agricultural use, it is characterised in that:The degradable biological base fluid body plastic film for agricultural use Composition includes:Cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, water.
2. a kind of degradable biological base fluid body plastic film for agricultural use, it is characterised in that:The degradable biological base fluid body plastic film for agricultural use Composition includes:Cellulose sulfate monoester salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, humic acid sulfuric acid monoester Salt, water.
3. a kind of production method of degradable biological base fluid body plastic film for agricultural use, it is characterised in that:The degradable biological base fluid body The production method of plastic film for agricultural use is comprised the following steps:
The straw of powdery, stem are mixed as the first initial biological base manure;
1,2- dichloroethanes are weighed as solvent, the sulfur trioxide of liquid and part 1,2- dichloroethanes are mixed, three oxygen are formed Change sulfur/1,2- dichloroethanes mixing liquids;
Again successively by remainder 1,2- dichloroethanes, the first initial biological base manure are added in sulphonation kettle, and Deca is above-mentioned Sulfur trioxide/1,2- dichloroethanes mixing liquids, control response time and reaction temperature, so that the first initial biological base manure is through sulphur Change reaction and generate the first sulfuric acid monoester, while obtaining the first sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes;
Above-mentioned first sulfuric acid monoester mixed liquor and ammonia or aqua calcises are added in neutralization kettle and are neutralized reaction, shape Into the first sulfuric acid monoester salt mixed liquor, in the first sulfuric acid monoester salt mixed liquor, contain the first sulfuric acid monoester salt;
By method of the first sulfuric acid monoester salt mixed liquor by vacuum distillation, so that 1,2- dichloroethanes are from first sulfur Depart from acid monoester salt mixed liquor, to obtain the first sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes;
The first sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes is carried out being centrifuged, is washed, not contained The filtering residue of the first sulfuric acid monoester salt mixed liquor of 1,2- dichloroethanes and filtrate, do not contain the first of 1,2- dichloroethanes by described The filtrate of sulfuric acid monoester salt mixed liquor is separated by oil water separator, obtains the first sulfuric acid monoester saline solution, by first sulfur Acid monoester saline solution includes cellulose sulfate monoesters as bio-based agricultural liquid film, the composition of the bio-based agricultural liquid film Salt, hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, water.
4. the production method of degradable biological base fluid body plastic film for agricultural use as claimed in claim 3, it is characterised in that:" again according to It is secondary that by remainder 1,2- dichloroethanes, the first initial biological base manure are added in sulphonation kettle, and the above-mentioned sulfur trioxide of Deca/ 1,2- dichloroethanes mixing liquid, control response time and reaction temperature, so that the first initial biological base manure is sulfonated to react life Into the first sulfuric acid monoester, while obtaining the first sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes " the step of in, described is anti- Answer temperature for 10~50 DEG C, the response time is 1~10h.
5. the production method of degradable biological base fluid body plastic film for agricultural use as claimed in claim 3, it is characterised in that:" again according to It is secondary that by remainder 1,2- dichloroethanes, the first initial biological base manure are added in sulphonation kettle, and the above-mentioned sulfur trioxide of Deca/ 1,2- dichloroethanes mixing liquid, control response time and reaction temperature, so that the first initial biological base manure is sulfonated to react life Into the first sulfuric acid monoester, while obtaining the first sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes " the step of in, described is anti- Answer temperature for 20~40 DEG C, the response time is 3~6h.
6. a kind of production method of degradable biological base fluid body plastic film for agricultural use, it is characterised in that:The degradable biological base fluid body The production method of plastic film for agricultural use is comprised the following steps:
The straw of powdery, stem are mixed with weathered coal as the second initial biological base manure;
1,2- dichloroethanes are weighed as solvent, the sulfur trioxide of liquid and part 1,2- dichloroethanes are mixed, three oxygen are formed Change sulfur/1,2- dichloroethanes mixing liquids;
Again successively by remainder 1,2- dichloroethanes, the second initial biological base manure are added in sulphonation kettle, and Deca is above-mentioned Sulfur trioxide/1,2- dichloroethanes mixing liquids, control response time and reaction temperature, so that the second initial biological base manure is through sulphur Change reaction and generate the second sulfuric acid monoester, while obtaining the second sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes;
Above-mentioned second sulfuric acid monoester mixed liquor and ammonia or aqua calcises are added in neutralization kettle and are neutralized reaction, shape Into the second sulfuric acid monoester salt mixed liquor, in the second sulfuric acid monoester salt mixed liquor, contain the second sulfuric acid monoester salt;
By method of the second sulfuric acid monoester salt mixed liquor by vacuum distillation, so that 1,2- dichloroethanes are from the second sulphuric acid list Depart from ester salt mixed liquor, to obtain the second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes;
The second sulfuric acid monoester salt mixed liquor for not containing 1,2- dichloroethanes is carried out being centrifuged, is washed, not contained The filtering residue of the second sulfuric acid monoester salt mixed liquor of 1,2- dichloroethanes and filtrate, will not contain the second sulphuric acid of 1,2- dichloroethanes The filtrate of monoester salt mixed liquor is separated by oil water separator, obtains the second sulfuric acid monoester saline solution, by the second sulphuric acid list Ester saline solution as bio-based agricultural liquid film, the composition of the bio-based agricultural liquid film include cellulose sulfate monoester salt, Hemicellulose sulfuric acid monoester salt, lignin sulfuric acid monoester salt, humic acid sulfuric acid monoester salt, water.
7. the production method of degradable biological base fluid body plastic film for agricultural use as claimed in claim 6, it is characterised in that:" again according to It is secondary that by remainder 1,2- dichloroethanes, the second initial biological base manure are added in sulphonation kettle, and the above-mentioned sulfur trioxide of Deca/ 1,2- dichloroethanes mixing liquid, control response time and reaction temperature, so that the second initial biological base manure is sulfonated to react life Into the second sulfuric acid monoester, while obtaining the second sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes " the step of in, described is anti- Answer temperature for 10~50 DEG C, the response time is 1~10h.
8. the production method of degradable biological base fluid body plastic film for agricultural use as claimed in claim 6, it is characterised in that:" again according to It is secondary that by remainder 1,2- dichloroethanes, the second initial biological base manure are added in sulphonation kettle, and the above-mentioned sulfur trioxide of Deca/ 1,2- dichloroethanes mixing liquid, control response time and reaction temperature, so that the second initial biological base manure is sulfonated to react life Into the second sulfuric acid monoester, while obtaining the second sulfuric acid monoester mixed liquor containing 1,2- dichloroethanes " the step of in, described is anti- Answer temperature for 20~40 DEG C, the response time is 3~6h.
CN201610936181.8A 2016-10-25 2016-10-25 Degradable biological base fluid body plastic film for agricultural use and its production method Pending CN106489630A (en)

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CN107114144A (en) * 2017-05-27 2017-09-01 宁夏大学 Bio-based sulfonate prepares application and the seedling culture hole plate of seedling culture hole plate as water-loss reducer and sustained release agent
CN110915509A (en) * 2019-12-10 2020-03-27 宁夏大学 Agricultural spraying and laying machine for bio-based liquid paper film
CN114097493A (en) * 2021-10-21 2022-03-01 宁夏大学 Over-summer cooling method for sunlight greenhouse

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CN101343383A (en) * 2008-07-25 2009-01-14 曹龙奎 Cellulose based degradable liquid mulch film
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CN107114144A (en) * 2017-05-27 2017-09-01 宁夏大学 Bio-based sulfonate prepares application and the seedling culture hole plate of seedling culture hole plate as water-loss reducer and sustained release agent
CN110915509A (en) * 2019-12-10 2020-03-27 宁夏大学 Agricultural spraying and laying machine for bio-based liquid paper film
CN114097493A (en) * 2021-10-21 2022-03-01 宁夏大学 Over-summer cooling method for sunlight greenhouse

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