CN107687109A - A kind of agricultural paper mulch film of environment-friendly degradable and its manufacture method - Google Patents
A kind of agricultural paper mulch film of environment-friendly degradable and its manufacture method Download PDFInfo
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- CN107687109A CN107687109A CN201710717388.0A CN201710717388A CN107687109A CN 107687109 A CN107687109 A CN 107687109A CN 201710717388 A CN201710717388 A CN 201710717388A CN 107687109 A CN107687109 A CN 107687109A
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- mulch film
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/06—Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibres; Filaments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/08—Dispersing agents for fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/38—Corrosion-inhibiting agents or anti-oxidants
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Abstract
The invention discloses a kind of agricultural paper mulch film of environment-friendly degradable and its manufacture method, paper mulch film paper pulp made of long fibered raw material or long fibered raw material and short fiber material, which is manufactured paper with pulp, to be formed, the long fibered raw material uses the combination of one or both of banana caulo, pineapple leaves, the short fiber material uses bagasse using the combination of both water hyacinth and cassava stalk or with the combination of bagasse three or list, and being incorporated in the paper pulp has waterproofing agent.The present invention prepares a kind of agricultural paper mulch film of environment-friendly degradable using South China's Main Agricultural discarded object and instruction plant as raw material, while these agricultural wastes or instruction plant is turned waste into wealth, reduces plastic film mulching cultivation pollution to caused by arable land.
Description
Technical field
The present invention relates to one kind using agricultural wastes and instruction plant as the agricultural paper mulch film of environment-friendly degradable made of raw material,
It is related to a kind of manufacture method of above-mentioned paper mulch film.
Background technology
Plastic film mulching cultivation is an important technical measure of Agriculture Production.It, which has, improves ground temperature, water conservation, fertilizer conservation
And the multiple functions such as anti-grass, it is greatly promoted agricultural production.South China's high temperature, high humidity, more season crop rotations, weeds are difficult to prevent
Control, mulch film frequency of usage are very high.The mulch film overwhelming majority used at present is petrochemicals polyethylene film, because it is thick
Spend only about 0.01mm, it is difficult to reclaim, for planting household also without recovery wish, long-term use will accumulate increasing hardly possible in arable land
With the plastic grain of degraded, formed " white pollution ", influence crop root system growth and rich water absorbs, in some instances it may even be possible to agricultural product
Quality have an impact, and then influence people health.
The present invention is intended to provide a kind of agricultural paper mulch film of environment-friendly degradable, high to solve South China's mulch film frequency of usage,
Recovery is difficult or the recovery that has no intention causes " white pollution " problem of ploughing.The present invention also provides a kind of above-mentioned paper mulch film manufacture simultaneously
Method.
The general Making programme of paper mainly comprises the following steps：
1) raw material obtains；
2) raw material is just handled；
3) slurrying：Chemical immersion pulping by cooking, including alkaline bisulfite cooking, neutral sulfity process boiling and acid bisulfite cooking,
Or chemical-mechanical pulping；
4) pulp washing；
5) bleach；
6) filler：Filler is carried out to the paper pulp after flocculation with calcium carbonate, alum, strengthens the performance of paper；
7) it is glued：The paper pulp after filler is glued with carboxymethyl cellulose or other sizing agents, strengthens the anti-of paper
Damp performance；
8) manufacture paper with pulp, drainage, dehydration, baking drying；
9) press polish coil paper.
Water consumption is big in above-mentioned traditional paper-making process, pollution weight, and environmental protection pressure is big.Especially chemical immersion pulping by cooking ring
It is big to save water, it is seriously polluted, pulp washing screening the pulp and manufacture paper with pulp also many with water.Thus, if more environmentally friendly scheme system can be used
Obtain the agricultural paper mulch film, it will substantially reduce the pressure to environment.
The content of the invention
The first goal of the invention of the present invention：Using South China's Main Agricultural discarded object and instruction plant as raw material, one is prepared
The agricultural paper mulch film of kind environment-friendly degradable, while these agricultural wastes or instruction plant is turned waste into wealth, with reducing plastics
Film mulching and planting pollutes to caused by arable land.
The second goal of the invention of the present invention is to provide the agricultural paper mulch film system that a kind of production process does not produce chemical contamination
Make method.
The first goal of the invention of the present invention is achieved through the following technical solutions：A kind of agricultural paper mulch film of environment-friendly degradable, institute
State paper mulch film paper pulp made of long fibered raw material or long fibered raw material and short fiber material and manufacture paper with pulp and form, the long fibered raw material
Using the combination of one or both of banana caulo, pineapple leaves, the short fiber material uses water hyacinth and cassava stalk two
The combination of person uses bagasse with the combination of bagasse three or list, and being incorporated in the paper pulp has a kind of waterproofing agent (water repellent
Agent).The raw material proportioning of the present invention, both can guarantee that the performance requirement and can of agricultural paper mulch film reduces production cost, by paper pulp
Middle involvement waterproofing agent octadecanoic acid 1801 can make paper have extremely strong hydrophobicity, so that its resistance of rainwater washing against performance obtains
Greatly promote, add the continuous erosion quantity of rainwater that the paper mulch film of waterproofing agent octadecanoic acid 1801 can be born, be that same method exists
Do not add the paper mulch film of the manufacture of octadecanoic acid 1801 more than 8 times.As preferred：The waterproofing agent of addition is octadecanoic acid
1801, the octadecanoic acid 1801 of addition is the 0.5-1.2% of paper pulp dry pulp weight；Further preferably：The octadecane of addition
Acid 1801 is the 1.0% of paper pulp dry pulp weight.By adding the octadecanoic acid 1801 of dry pulp weight 1.0%, paper mulch film can be made
With the water repellent water resistance similar to plastic foil, the water-resistance and resistance of rainwater washing against performance of paper mulch film are drastically increased.And
Long and short fibrous raw material is used cooperatively, and can increase the pliability and dry strength of paper.
Banana is one of main fruit in South China, about 6,500,000 mu of national cultivated area in 2015, the only kind in Guangdong Province
Plant about 2,000,000 mu of area.Banana caulo turns into a kind of main agricultural wastes in South China, and its fiber content is up to 55%,
Length averagely about 8mm, it is typical long fibre.At present, after banana harvest, most banana caulos are thrown away in field after being chopped off
The edge of a field, its carry pathogen easily cause disease spread so that under the influence of season banana harvest, waste high-quality long fibre.This
Invention utilizes its high-quality long fibre on agricultural paper mulch film, you can reduces the propagation of pathogen, also makes discarded banana caulo
Generate value.
Pineapple, also known as pineapple, it is one of distinctive fruit in South China, per more than 800,000 mu of annual planting area, Guangdong Province
About 400,000 mu of cultivated area.Plant after pineapple harvesting there are about 10% be used to breeding seedling and in field continued growth, remaining
Then directly pluck for stripping arghan.Breeding the pineapple leaves of kind of after seedling can often dry up, be no longer full, it is difficult to strip spinach
Trailing plants leaf fibre, and these withered leaves have no effect on papermaking.Even plucking pineapple leaves at once after harvest pineapple, typically also can
There is 30-50% leaf due to fractureing, the reason such as scab, off-dimension is abandoned.And content of cellulose is general in pineapple leaves
For 60-75%, its fiber monomer length is 3-8mm, is high-quality long fibre.
Water hyacinth is a kind of pernicious instruction plant for having a strong impact on ecology of water, and its biomass is huge.It is annual to have largely
Water hyacinth it is salvaged after be transported to soot landfill, not only occupy the land fill space of preciousness, waste biomass.Water
Cucurbit fiber content is 20-30%, and for average fiber length less than 1mm, ash content is slightly higher, is not used alone to papermaking typically.
Cassava is the special crop of South China, and its stalk is up to 2-3m, and the typically stalk only less than 5% is used as staying
Kind, remaining stalk is typically thrown away as discarded object.Cassava stalk content of cellulose about 41%, its average length is about
0.9mm is suitable with water hyacinth fibre length.
Sugarcane is fluctuated in the cultivated area of South China at 20,000,000 mu in recent years, and sugarcane is squeezed sweet after sucrose
Bagasse there are about 10,000,000 tons.Sugarcane fibre is relatively long, average 1-2mm, suitable with broad-leaved wood fiber, can be used alone to papermaking.
Because sugarcane marrow parenchyma cell is difficult to remove, the fiber in sugarcane marrow is short and thick, and paper properties are not excellent enough, so that bagasse is general
It is used as fuel, only about 20% is used for papermaking.Specialty economies crop of the sugarcane as South China, it squeezes sweet after sucrose
Bagasse can substitute the combination of the water hyacinth and cassava stalk in the present invention with a part or whole part.Bagasse fibre although long,
But its length-width ratio is very low, less than 80 times, and the presence of medullary substance reduces its fibre property, therefore should not be used as long fibre.
In view of banana caulo, the excellent properties of arghan in above-mentioned agricultural wastes, they and instruction plant are utilized
The fiber of water hyacinth, cassava stalk, bagasse etc. is combined, and is produced the agricultural paper mulch film of environment-friendly degradable, can not only be made this
A little agricultural wastes or instruction plant are turned waste into wealth, and can also reduce plastic film mulching cultivation pollution to caused by arable land.
The pliability of agricultural paper mulch film is provided with tensile strength by using more than 50% high-quality long fibre, so described
The ratio between long fibered raw material and short fiber material slurry dry weight >=1:1；The water hyacinth slurry is starched the ratio between dry weight with cassava stalk slurry and recommended
For 1:2 to 2:1, preferably 1:1.If reduce long fibre use ratio, paper film properties especially Tensile strength it is rapid under
Drop, conversely, increasing long fibre use ratio, the performance of paper mulch film can be improved.
The paper mulch film the key technical indexes of the present invention：
The second goal of the invention of the present invention is achieved through the following technical solutions：A kind of agricultural paper mulch film of the environment-friendly degradable
Manufacture method, specifically comprise the following steps：
1) raw material prepares：By fibrous raw material such as banana caulo, water hyacinth, cassava straw chopping, material block length 35-
45mm, thickness 8-15mm.
2) mechanical feedback：The ready fibrous raw material of step 1) is ground into slurrying respectively with highly concentrated；Then will be obtained
Fibrous raw material slightly starches carry out boiling, and whole process does not add any chemical reagents；Thick slurry after boiling is subjected to fine grinding defibrination again.
3) papermaking prepares：By fibrous raw material slurry by long fibered raw material slurry dry weight not less than short fiber material slurry dry weight
Ratio is mixed, and it is 2-4% to be diluted with water to slurry concentration, adds Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) DL501 to 15-40ppm, preferably
20ppm, and pulp dry weight 0.5-1.2% preferably 1% waterproofing agent octadecanoic acid 1801, pulp dry weight is slowly added in stirring
0.1-0.3% dispersant PEO, stir as can be with the slurry of copy paper.
4) manufacture paper with pulp：The slurry prepared in step 3) is delivered into wet end roller to manufacture paper with pulp, then through two pairs of rollers extrusion dehydration, drum hot blast
Dry, press polish, coil paper, you can obtain the agricultural paper mulch film.
The temperature of boiling is 110-140 DEG C in step 2), time 15-45min.The digestion process of the present invention is made in corase grind
After slurry before fine grinding slurrying, the main purpose of boiling is to make fiber softening, is different from the delignification of chemical method pulping by cooking
Fiber is dissociateed to the purpose come；Secondly, any chemical reagents are not added in digestion process；Again, boiling temperature in the present invention
For 110-140 DEG C, preferably time 15-45min, 115-125 DEG C, time 30-45min, pressure is 0.15Mpa or so, with steaming
Temperature natural trend is boiled, digestion time is generally more than 120min in chemical pulping, and temperature typically needs more than 150 DEG C
It is pressurized to several atmospheric pressure.Experiment shows that the inventive method refines slurrying than phase after 120 DEG C or so boiling 30-45min
The time that half is saved in slurrying is directly refined in not boiling with the conditions of, and the beating degree of gained paper pulp is more preferable.
Fine grinding defibrination, 28-45 ° of SR of beating degree in step 2).Wherein, water hyacinth, the fibre length of cassava stalk fiber are inclined
Low, the broom degree of fiber can be improved by improving beating degree, while can also reduce its length, in view of its fibre length is relatively low, pass through mashing
Degree, which improves its broom degree, can not improve paper performance, or even can reduce its paper properties, so needing to control its freeness range.
Pulp fibres length under 1 different beating degrees of table
Wherein, water hyacinth fibre, cassava stalk fiber beating degree are controlled in 28-35 ° of SR, are recommended as 30 ° of SR, banana caulo
Fiber is controlled in 38-45 ° of SR, is recommended as 41 ° of SR.
It is diluted with water in step 3), it is 2-4% to make slurry concentration.Pulp density is adjusted according to the speed of paper machine, made corresponding
The mulch film paper that is ferreted out with speed of slurry concentration quantitatively meet the requirements.
Paper basis weight is 140-200g/m in step 4)2.Field test shows, the frame class vegetable leaf such as fresh kidney beans, sponge gourd
Larger, the position that rainwater is easily fixed along blade is formed under heavy rain drippage, thus requires that the dry strength of paper is bigger, resistance to rainwater
Impact capacity is strong.The present invention is according to South China's summer damp and hot more heavy rain, the climatic characteristic of winter warm more light rain, it is determined that winter
The quantification of 140-160g/m of paper mulch film used in season2, the summer quantification of 180-200g/m of paper mulch film2, such as table 2.
The continuous erosion quantity situation table of the resistance to rainwater of basic model paper mulch film of the different basis weights of table 2
Compared to prior art, the present invention has the advantages that：
1) South China's high temperature, high humidity, more season crop rotations, weeds are difficult to prevention and control, and mulch film frequency of usage is very high, and the present invention is just
Ground is drawn materials, and using South China's agricultural wastes and larger pernicious instruction plant water hyacinth is endangered as raw material, using long and short fiber
With reference to make environmental protection can natural degradation paper mulch film, not only there is good anti-careless effect and the effect of promoting production, and avoid modeling
" white pollution " that material mulch film the is brought and destruction to soil texture；
2) the three kinds of chemicals used in the whole paper manufacturing streams of the inventive method are nontoxic, and Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) DL501
It is degradable with dispersant polyethylene glycol oxide PEO, and a kind of aliphatic acid that octadecanoic acid, which is nature, to be widely present, almost exist
In all greases, such as animal tallow and vegetable oil, make paper Plastic-film disintegration rate of the present invention can be to 100%；
3) the paper mulch film according to made from the inventive method, there is good resistance of rainwater washing against performance, its continuous punching of resistance to rainwater
Brush amount manufactures more than 10 times of paper up to same material and without using this method, can be subjected in the case of Land leveling
Continuous wash away of the non-heavy rains of more than 400mm keeps not rotten, can be soaked in water and keep within 7 days not wet.And rush weight in wet base in rainwater and newly do
Pliability, water repellency and the resistance of rainwater washing against performance of paper do not change substantially after dry.In the case where no heavy rain washes away, China
Southern Area during Summer 40-50 days, winter-spring season are voluntarily degraded after 50 days, fully meet expectation of the people to mulch film.
Brief description of the drawings
Fig. 1 is the process chart of manufacture method specific embodiment of the present invention.
Embodiment
For several paper mulch films produced by the present invention, (paper basis weight is with 200g/m below2Exemplified by, minute is with the Guangzhou summer
Exemplified by season) performance is as follows：
Embodiment 1a
A kind of base stock composition of the agricultural paper mulch film of environment-friendly degradable：
Banana caulo is starched:Water hyacinth is starched:Cassava stalk slurry 2:1:1 (dry pulp)
Octadecanoic acid 1,801 1.0%.
The paper mulch film performance parameter is：
Embodiment 2a
A kind of base stock composition of the agricultural paper mulch film of environment-friendly degradable：
Banana caulo is starched:Water hyacinth is starched:Cassava stalk slurry 4:1:1 (dry pulp)
Octadecanoic acid 1,801 1.0%.
The paper mulch film performance parameter is：
Embodiment 3a
A kind of base stock composition of the agricultural paper mulch film of environment-friendly degradable：
Banana caulo is starched:Water hyacinth is starched:Cassava stalk slurry 1:0:0 (dry pulp)
Octadecanoic acid 1,801 1.0%.
The paper mulch film performance parameter is：
Embodiment 4a
A kind of base stock composition of the agricultural paper mulch film of environment-friendly degradable：
Pineapple leaves are starched:Water hyacinth is starched:Cassava stalk slurry 1:0:0 (dry pulp)
Octadecanoic acid 1,801 1.0%.
The paper mulch film performance parameter is：
Embodiment 5a
A kind of base stock composition of the agricultural paper mulch film of environment-friendly degradable：
Banana caulo is starched:Bagasse pulp 2:1 (dry pulp)
Octadecanoic acid 1,801 1.0%.
The paper mulch film performance parameter is：
It is the specific embodiment of the agricultural method of producing paper mulch of environment-friendly degradable of the present invention below.
Embodiment one
As shown in figure 1, the agricultural method of producing paper mulch of the environment-friendly degradable of the embodiment of the present invention one, specifically includes following step
Suddenly：
Raw material prepares：Fresh banana caulo, water hyacinth, the shearing crushing of cassava stalk is standby.Material length 35-
45mm, thickness 8-15mm.
Mechanical feedback：The banana caulo after crushing, water hyacinth, cassava stalk will directly be sheared respectively with highly concentrated mill of connecting
Defibrination, thick slurry is made respectively, then by made slightly 120 DEG C of boiling 45min of slurry, then refine slurrying respectively.Banana caulo slurry is beaten
About 41 ° of SR of the degree of beating, water hyacinth and cassava stalk slurry are 30 ° of SR.
Papermaking prepares：Banana caulo is starched, water hyacinth is starched, cassava slurry is by slurry dry weight 2:1:1 ratio mixing, adds water
It is 3% to slurry concentration；The concentration added in papermaking preservative DL501 to paper pulp is 15ppm；Add the waterproof of slurry dry weight 1%
Agent octadecanoic acid 1801, it is 80-90 DEG C to control slurry temperature, octadecanoic acid is fully melted, and combined with slurry；Then it is slow
Slurry dry weight 0.3-0.5% dispersant PEO is added, is stirred.
Manufacture paper with pulp：Speed is adjusted, it is 150g/m to control paper basis weight2.Above-mentioned ready mixed pulp is delivered to wet end
Roller is manufactured paper with pulp, effective breadth 1200mm, through extrusion dehydration, forced air drying, paper its dry strength 3760m after press polish, wet strength
For 20.42%.
Simulation laboratory test shows that the paper mulch film can tolerate 420mm heavy rain and continuously wash away without perforating or cracking.
In December, 2016 to the field planting experiment between in March, 2017 shows that the paper mulch film was stale-proof in field using 40 days
It is rotten, it is degradable during to the 65th day.
Embodiment two
The agricultural method of producing paper mulch of environment-friendly degradable of the embodiment of the present invention two, specifically comprises the following steps：
Raw material prepares：Fresh banana caulo, water hyacinth, the shearing crushing of cassava stalk is standby.Material length 35-
45mm, thickness about 10mm.
Mechanical feedback：By banana caulo, water hyacinth, cassava stalk respectively with highly concentrated mill defibrination of connecting, thick slurry is made, so
Afterwards by made slightly 125 DEG C of boiling 30min of slurry, then refine slurrying respectively, about 41 ° of SR of beating degree of banana caulo slurry, water hyacinth and
Cassava stalk slurry is 30 ° of SR.
Papermaking prepares：Banana caulo is starched, water hyacinth and cassava stalk are starched by its dry weight 4:1:1 ratio mixing, adds water
It is 3.5% to slurry concentration.The concentration added in papermaking preservative DL501 to paper pulp is 15ppm, and addition slurry dry weight 1% is prevented
Aqua octadecanoic acid 1801, mix mashing.
Manufacture paper with pulp：Paper basis weight 200g/m2.The mixed pulp of above-mentioned addition additive is delivered into wet end roller to manufacture paper with pulp, had
Breadth 1200mm is imitated, through extrusion dehydration, forced air drying, paper its dry strength 4390m after press polish, wet strength 21.2%, so
Coil paper afterwards, as high-quality resistance of rainwater washing against, have anti-grass, the agricultural paper mulch film for effect of promoting production concurrently.
Simulation laboratory test shows that the paper mulch film can tolerate 466mm heavy rain and continuously wash away without perforating or cracking.
In May, 2016 field planting experiment show, the paper mulch film uses without putrefaction in 43 days in field, at the 65th day
It is degradable.
Claims (10)
1. a kind of agricultural paper mulch film of environment-friendly degradable, it is characterised in that the paper mulch film is by long fibered raw material or long fibered raw material
With short fiber material made of paper pulp manufacture paper with pulp and form, the long fibered raw material is using banana caulo, one kind in pineapple leaves or two
Kind combination, the short fiber material using both water hyacinth and cassava stalk combination or with the combination of bagasse three or list
Being incorporated using bagasse, in the paper pulp has waterproofing agent.
2. the agricultural paper mulch film of environment-friendly degradable according to claim 1, it is characterised in that the waterproofing agent of addition is 18 carbon
Alkanoic acid 1801, the octadecanoic acid 1801 of addition are the 0.5-1.2% of paper pulp dry pulp weight.
3. the agricultural paper mulch film of environment-friendly degradable according to claim 2, it is characterised in that the long fibered raw material and short fibre
Tie up the ratio between raw material slurry dry weight >=1:1.
4. the agricultural paper mulch film of environment-friendly degradable according to claim 3, it is characterised in that the water hyacinth slurry and cassava stem
The ratio between stalk slurry slurry dry weight is 1:2 to 2:1.
5. the agricultural paper mulch film of environment-friendly degradable according to any one of claim 1-4 claim, it is characterised in that described
The technical indicator of paper mulch film is as follows：
6. the agricultural paper mulch film of environment-friendly degradable according to claim 5, it is characterised in that the paper mulch film of use in winter is into paper
Quantification of 140-160g/m2, the paper mulch film paper basis weight that summer uses is 180-200g/m2。
7. the agricultural method of producing paper mulch of environment-friendly degradable described in a kind of any one of claim 1-6 claim, its feature
It is, specifically comprises the following steps：
1) raw material prepares：Fibrous raw material is shredded, material block length 35-45mm, thickness 8-15mm；
2) mechanical feedback：The ready fibrous raw material of step 1) is ground into slurrying respectively with highly concentrated；Then the fiber that will be obtained
Raw material slightly starches carry out boiling, and whole process does not add any chemical reagents；Thick slurry after boiling is subjected to fine grinding defibrination again；
3) papermaking prepares：Fibrous raw material slurry is not less than to the ratio of short fiber material slurry dry weight in long fibered raw material slurry dry weight
Mixed, it is 2-4% to be diluted with water to slurry concentration, addition Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) DL501 to 15-40ppm, pulp dry weight 0.5-
1.2% waterproofing agent octadecanoic acid 1801, is slowly added to pulp dry weight 0.1-0.3% dispersant PEO in stirring, stirring is equal
It is even be can be with the slurry of copy paper；
4) manufacture paper with pulp：The slurry prepared in step 3) is delivered into wet end roller to manufacture paper with pulp, then through two pairs of rollers extrusion dehydration, drum hot air drying
It is dry, press polish, coil paper, you can obtain the agricultural paper mulch film.
8. manufacture method according to claim 7, it is characterised in that the temperature of boiling is 115-125 DEG C in step 2), when
Between 30-45min.
9. manufacture method according to claim 7, it is characterised in that fine grinding defibrination in step 2), 28-45 ° of SR of beating degree,
Wherein, water hyacinth fibre, the control of cassava stalk fiber beating degree are in 28-35 ° of SR, banana caulo or arghan beating degree control
System is in 38-45 ° of SR.
10. manufacture method according to claim 9, it is characterised in that the water hyacinth fibre, the mashing of cassava stalk fiber
Degree control is 30 ° of SR；Banana caulo or the control of arghan beating degree are in 41 ° of SR.
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