CN109265937A - The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal - Google Patents
The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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Abstract
The invention discloses the methods for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, raw material includes automobile-used acoustical cotton leftover bits, modified starch, peanut vine powder, calcium carbonate, polyethylene terephthalate, ethylene-acrylic acid copolymer, maleic anhydride, cumyl peroxide and auxiliary agent, using automobile-used acoustical cotton leftover bits as primary raw material, pass through starch conversion, it mixes compatible, recycle sound-absorbing material leftover bits, realize that recycling recycles, save the energy and material consumption, there is no three-waste pollution problem, the cost of product is low, the dedicated agricultural mulching of peanut, it can be degraded in a natural environment, meet crop cycle, organic waste materials are turned to after degradation, it can also be by soil absorption, improving can implanting, peanut seedling stage is promoted to grow up strong and sturdy, with good economic efficiency and social benefit.
Description
Technical field
The present invention relates to agricultural mulching fields, and in particular to prepares the dedicated agriculture of peanut using automobile-used acoustical cotton corner dead meal
With the method for mulch.
Background technique
Mulch, that is, covered ground film, usually transparent or black PE film, also has green, silver thin film, covers for ground
Lid keeps soil moisture to improve the soil moisture, maintains soil texture, prevents pest attacks crop and certain micro-organisms from causing
Disease etc., promote the function of plant growth.
Due to the use of agricultural mulching, it is effectively controlled the temperature and humidity of soil, reduces moisture and nutrients
It is lost, the high yield and stable yields of crops is promoted, to increase agriculture production benefit.But at the same time, due to the one of mulch
Secondary property uses, and all can have a large amount of residual film to stay in soil every year.Plastic film is difficult to degrade in nature.These mulches are broken
Piece can form barrier layer in the soil, make the constricted flows such as water, gas, the fertilizer in soil, cause soil texture hardened, seriously endanger
Ecological environment causes white pollution.Therefore, solve the problems, such as that residual film contaminated soil has become ought being engaged in for plastic mulching cultivation technology
Anxious, in order to solve this problem, the research of degradable mulch is come into being.
Peanut (scientific name:Arachis hypogaea Linn.): Rosales, pulse family, the annual herb plant of Arachis.
There is root nodule abundant in root；Stem and branch have rib, and leaf papery is to life；Petiole base embraces stem, and ovate oblong to obovate is first
Blunt round, two sides have hair are held, edge has eyelashes；Vein edge, which is coupled mutually, to be reticulated；Flower is about 8 millimeters；Bract lanceolar；Flower
Be preced with yellow or golden yellow, vexil is carried out, and ala is separated with fossil fragments, oblong or tiltedly avette, style extend calyx pipe pharyngeal it
Outside, pod expands, and pod is thick, 6-8 month flowering fruit bearing stage.It is distributed in the ground such as Brazil, China, Egypt.Peanut has plantation all over China,
It is distributed mainly on Liaoning, Shandong, Hebei, Henan, Jiangsu, Fujian, Guangdong, Guangxi, Sichuan, Jilin etc. and saves (area).
The oil yield of peanut is much higher than other oil crops in oil crops, and oil yield is up to 45%-50%, oleic acid in peanut
Relative amount be up to 50% or more, oleic acid has reduction to make to human body cardiovascular benefic, to hyperlipidemia, the bad cholesterol of human body
With without influence or opposite raising good cholesterol.China is maximum peanut oil country of consumption in the world.
The fruit of peanut be pod, the color of shell is mostly yellow-white, also have yellowish-brown, brown or yellow, this with
The kind and soil property of peanut are related.Seed in peanut shell is commonly referred to as shelled peanut or shelled peanut, by kind of a skin, cotyledon and embryo three
It is grouped as.The color of kind skin is filbert or light red.Intradermal kind is two panels.It is the raw material for producing edible vegetable oil, peanut
It is transparent, faint yellow that grease is extracted in benevolence, taste fragrance, the fatty oil of seed, nitrogen substance, starch, cellulose, moisture, ash content
With vitamin etc..Shelled peanut can be processed into non-staple food.
Outside nitrogen substance isolating protein, there are also amino acid, such as γ-methyleneglutaric acid, gamma-amino-alpha-methylene-fourth
Acid, lecithin, purine and alkaloid: arachine, glycine betaine, choline, one says that arachine is really impure choline.
Also contain triterpenoid saponin in seed.The cotyledon of seed and the non-saponified portions of plumular axis part are mainly sterol, have been confirmed
Have stigmasterol, campesterol, cholesterine and 24- methylene cholesterine.Kind skin contains lipid, wherein hydrocarbon 17.1%, sterol ester 12.4%,
Glyceryl ester 8.4%, two glyceride 9.9%, monoglyceride 25.2% and nonesterified fatty acid 3.9%.Also contain considerable amount of sterol, Jiao Xinger
Tea phenolic tannin 7% and a small amount of phlobaphene and leucoanthocyanidin, such as leucocyanidin, leucodelphindin, and containing goitrogenic
Arachidoside.Shell contains to cardiovascular effective glucoside (being 1,3, the substituent of diphenylprop glycol -1,2- ketone -3).
But present peanut yield is fewer and fewer, and poor quality, fruit is not big enough, nutrient imbalance.
With the development of economy, requirement of the people for automobile comfort level and interior decoration materials is higher and higher, largely
Sound-absorbing acoustic material be widely used in automobile all parts, to keep the demand of automobile-used high-performance acoustical material more next
It is bigger.
The automobile-used high-performance acoustical material of the large batch of production not only waste of resource but also leftover bits amount generated is big, because
This, recycling just becomes extremely important.For the sound-absorbing cotton material of mass production, with the burning energy such as heat and Pintsch process
Change using method is excessive since there are equipment investments, cost recovery is high, application is restricted.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide to prepare peanut using automobile-used acoustical cotton corner dead meal
The method of dedicated agricultural mulching is raw material using automobile-used acoustical cotton corner dead meal, has heat preservation, soil moisture conservation, improves ground temperature, improves
The utilization rate of light, can antidrip, the advantages that improving light transmittance and thermal insulation property, peanut seedling stage is promoted to grow up strong and sturdy.
The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, including following parts by weight
Raw material:
300~500 parts of automobile-used acoustical cotton leftover bits,
35~70 parts of modified starch,
15~20 parts of peanut vine powder,
20~50 parts of calcium carbonate,
8~15 parts of polyethylene terephthalate,
5~10 parts of ethylene-acrylic copolymer,
5~8 parts of maleic anhydride,
2~5 parts of cumyl peroxide,
5~10 parts of auxiliary agent；
The automobile-used acoustical cotton is using PET fiber and PP fiber as made of the material of primary raw material；
The peanut vine powder is 150~200 mesh；
The calcium carbonate is nanometer calcium carbonate；
The auxiliary agent, be oxidative degradation agent, antioxidant, ultraviolet absorbing agent, lubricant, plasticizer, weight ratio 1:2:1:
3:5；
The oxidative degradation agent, one or more of stearic acid, sodium laurate, titanium dioxide, iron oxide and manganese oxide；
The antioxidant is more than one antioxidant of Hinered phenols, phosphorous acid esters or phosphoric acid ester antioxidant；
The ultraviolet absorbing agent for salicylic acid esters, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and is obstructed
The one of which of amine；
The lubricant is calcium stearate, oxidized polyethylene wax, the one of which of paraffin, tristerin；
The plasticizer, ethylene glycol, propylene glycol, glycerine, xylitol, mannitol and ethanol amine more than one.
Modified starch, the raw material including following parts by weight:
35~70 parts of starch,
0.2~0.7 part of activator,
0.1~5 part of oxidant,
0.1~0.3 part of nitric acid,
0.3~0.8 part of esterifying agent,
0.8~1 part of coupling agent,
Water surplus；
The starch is tapioca；
The activator is sodium hydroxide or potassium hydroxide aqueous solution；
The oxidant is hypohalogenous acids and its salt, persulfate, hydrogen peroxide or potassium permanganate；
The esterifying agent, sodium trimetaphosphate or calgon；
The coupling agent is silanes, Aluminate, titanate esters or borate.
The preparation method of the dedicated agricultural mulching of peanut:
(1) modified starch is prepared
A, by starch with oven drying 24 hours, 100~120 DEG C of temperature setting；
B, the starch after drying is used into the ultra-fine grinding of high pressure draught pulverizer；
C, add water into ultra-fine starch, make starch water content 15%~60%, stir evenly；
D, activator is added into c, carries out activating pretreatment；
E, the starch after activation is subjected to heating water bath, temperature is kept for 35~55 DEG C, and oxidant is added, and is reacted 3~5 hours；
F, nitric acid, esterifying agent, coupling agent are successively added into e, the reaction time is respectively 0.5~1 hour, and 5~7 hours, 4~9
Hour；
G, by f resulting material heated-air drying, moisture is completely removed, obtains modified starch.
(2) by automobile-used acoustical cotton leftover bits coarse crushing, melting extrusion, the material warp of extrusion are carried out by single screw extrusion machine
Become plastic pellet after drawing-off, cooling, pelletizing；
(3) by modified starch, plastic pellet, peanut vine powder, calcium carbonate, plant fiber, polyethylene terephthalate, ethylene
Acrylic copolymer, maleic anhydride, cumyl peroxide, auxiliary agent are uniformly mixed, and are put into dual-screw pelletizer and are granulated, institute
It obtains particle and puts into blowing film forming in inflation film manufacturing machine again, the temperature of Blown Film is 150~190 DEG C, and blow-up ratio is 2~4, i.e.,
?.
Advantages of the present invention:
(1) it is raw material using automobile-used acoustical cotton leftover bits, sound-absorbing material leftover bits can be recycled, realizes that recycling recycles,
It can be converted into practical mulch to by discarded sound-absorbing material again, operation is simple, economize on resources consumption and reduction environmental pollution.It is automobile-used
Acoustical cotton leftover bits contain a large amount of PET fiber and PP fiber, also contain vinyl-vinyl acetate copolymer, polylactic acid etc.,
The characteristics of peanut being made into using automobile-used acoustical cotton leftover bits is mulching specially used, possesses prior art mulch also has heat preservation, protects
Moisture in the soil, the utilization rate for improving ground temperature, improving light, can it is antidrip, improve light transmittance and thermal insulation property, promote peanut seedling stage to grow up strong and sturdy
Advantage.
(2) modified starch added in the present invention, is modified, it can be ensured that starch is abundant using half wet process or Whote-wet method
It is modified,
Esterified group is accessed in starch molecule and hydrophobic group, similar compatibility substantially increase modified starch and macromolecule
The intermiscibility of resin, PVC, plasticizer, filler etc., water resistance and mechanical property are remarkably improved.
(3) for modified starch using tapioca as raw material, tapioca is the superior resources in Guangxi, belongs to renewable resource,
It is cheap and easy to get.The starch plastics product made after being blended, hydrophobicity, mechanical performance and mechanical property with higher can
It is widely used in injection molding and the blown film of plastic products, peanut is usually utilized to interplant with cassava, the growth that peanut is suitable for cassava
Environment is similar, and plastic products biodegrade completely, is conducive to the nutriment of peanut growth in tapioca starch, advantageous peanut is raw
It is long, no pollution to the environment.
(4) present invention is that polymer modification and extrusion molding are carried out using double screw extruder as chemical reactor, can be connected
Continuous to be produced on a large scale, high production efficiency is easy to automate；Temperature of charge control easily and accurately can be carried out, material stops
Reaction time and shear strength is stayed to control；Unreacted monomer and by-product can easily go out under molten state in machine
It goes, saves the energy and material consumption, there is no three-waste pollution problem, the cost of product is low；It can also be controlled when controlling product chemical structure
The micro-phase action of prepared material.
(5) when starch conversion, activator is added, the pH in adjustable solution can also increase medicament and starch molecule
Between contact surface area and contact frequency；Oxidant is added, oxidation results are also limited to introduce aldehyde radical other than glycosidic bonds
With carboxyl, starch molecule functional group is made to change, and part depolymerization, the more original starch of good fluidity, viscosity reduces and viscosity
Stability is high, permeability is strong and cohesive force is good, filming performance is good, easily forms tough, clear, continuous film；Esterifying agent is added,
Access esterified group and hydrophobic group；Coupling agent forms an organic hydrophobic layer on the surface of starch, makes the hydrophily of starch
It reduces,
The trigonal bipyramid complex compound model of aluminate coupling agent and Starch formation.
(6) sunlight major part envelope absorbs, and weeds are dead because lacking light under film, after covering with ground sheeting, ground temperature can be improved, protect
Moisture in the soil, root guard and raising fertilizer efficiency etc., there are also certain reflection actions, to improve the light condition of peanut plant middle and lower part blade.
(7) calcium carbonate
Calcium carbonate can be moulded as a kind of low-cost inorganic particle with made of automobile-used acoustical cotton leftover bits of the invention
Material particle forms compatible, Microphase Separation the mixture of macroscopic view, forms inorganic particle and the high-intensitive compatible modification of high molecular material
Material, mechanical property is also able to satisfy requirement, tensile strength, impact strength, fracture while enhancing calcium carbonate content
Elongation etc. reaches national standard.
(8) polyethylene terephthalate, chemical formula COC6H4COOCH2CH2O(English:Polyethylene terephthalate, abbreviation PET), the polymer of highly crystalline, smooth surface is glossy, is a kind of tree common in life
Rouge has excellent electrical insulating property, creep resistance, endurance, rub resistance and dimensional stability, in wider temperature range
With excellent physical property, there is very many advantages, such as power is good, dimensionally stable, the transparency are good, glossy, air-tightness.
(9) ethylene-acrylic copolymer, (Ethylene Acrylic Acid) it is a kind of with plasticity and high viscous
The polymer of connecing property, due to the presence of carboxyl group and the effect of hydrogen bond, the crystallization of polymer is suppressed, the linearly quilt of main chain
It destroys, therefore improves ethylene-acrylic copolymer transparency and toughness, reduce fusing point and softening point.
(10) maleic anhydride is polar monomer, and cumyl peroxide is initiator, is grafted to high molecular material,
Appropriate polar branch is introduced on its strand improves the deficiency in performance using the polarity and reactivity of branch, while increasing again
Add new property.
(11) corresponding auxiliary agent is added into mulch, increases the performance of mulch, and the time that control mulch is degraded is reduced poly-
Close interior friction between frictional force and the polymer molecular chain between object and equipment；Make modified inorganic filler and macromolecule
The compatibility of material greatly improves, and promotes the dispersibility of inorganic filler, so improve macromolecule material product inherence and
Presentation quality has inside and outside lubrication and plasticising performance concurrently.
(12) peanut vine is added, after Plastic-film disintegration, is conducive to fresh branches and leaves of peanut seedling growth, peanut vine has nitrogen fixation, can be with soil
Corresponding rhizobium establish symbiosis in earth, make peanut root Rapid Rooting, and long rhizobium speed also quickly, contains to flower
The raw nutriment favorably grown, promotes growth.
Specific embodiment
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, all other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1:
The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, the original including following parts by weight
Material: 300 parts of automobile-used acoustical cotton leftover bits, 35 parts of modified starch, 15 parts of peanut vine powder, 20 parts of calcium carbonate, poly terephthalic acid
8 parts of glycol ester, 5 parts of ethylene-acrylic copolymer, 5 parts of maleic anhydride, 2 parts of cumyl peroxide, 5 parts of auxiliary agent；
The automobile-used acoustical cotton is using PET fiber and PP fiber as made of the material of primary raw material；
The peanut vine powder is 150 mesh, and the calcium carbonate is nanometer calcium carbonate；
The auxiliary agent, be oxidative degradation agent, antioxidant, ultraviolet absorbing agent, lubricant, plasticizer, weight ratio 1:2:1:
3:5；
The oxidative degradation agent is titanium dioxide, and the antioxidant is antioxidant 1010, and the ultraviolet absorbing agent is ultraviolet light
Absorbent UV-P, the lubricant are calcium stearate, and the plasticizer is ethylene glycol；
Modified starch, the raw material including following parts by weight: 35 parts of starch, 0.2 part of activator, 0.1 part of oxidant, nitric acid 0.1
Part, 0.3 part of esterifying agent, 0.8 part of coupling agent,
The starch be tapioca, the activator be sodium hydrate aqueous solution, the oxidant be hypohalogenous acids, it is described
Esterifying agent is sodium trimetaphosphate, and the coupling agent is Aluminate；
The preparation method of the dedicated agricultural mulching of peanut:
(1) modified starch is prepared
A, by starch with oven drying 24 hours, 100 DEG C of temperature setting；
B, the starch after drying is used into the ultra-fine grinding of high pressure draught pulverizer；
C, add water into ultra-fine starch, make starch water content 30%, stir evenly；
D, activator is added into c, carries out activating pretreatment；
E, the starch after activation is subjected to heating water bath, temperature is kept for 35 DEG C, and oxidant is added, and is reacted 3 hours；
F, nitric acid, esterifying agent, coupling agent are successively added into e, the reaction time is respectively 0.5 hour, 5 hours, 4 hours；
G, by f resulting material heated-air drying, moisture is completely removed, obtains modified starch.
(2) by automobile-used acoustical cotton leftover bits coarse crushing, melting extrusion, the material warp of extrusion are carried out by single screw extrusion machine
Become plastic pellet after drawing-off, cooling, pelletizing；
(3) by modified starch, plastic pellet, peanut vine powder, calcium carbonate, plant fiber, polyethylene terephthalate, ethylene
Acrylic copolymer, maleic anhydride, cumyl peroxide, auxiliary agent are uniformly mixed, and are put into dual-screw pelletizer and are granulated, institute
Particle puts into blow film forming in inflation film manufacturing machine again, the temperature of Blown Film is 150 DEG C, blow-up ratio be 2 to get.
Embodiment 2:
The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, the original including following parts by weight
Material: 350 parts of automobile-used acoustical cotton leftover bits, 45 parts of modified starch, 17 parts of peanut vine powder, 30 parts of calcium carbonate, poly terephthalic acid
9 parts of glycol ester, 7 parts of ethylene-acrylic copolymer, 6 parts of maleic anhydride, 3 parts of cumyl peroxide, 7 parts of auxiliary agent；
The automobile-used acoustical cotton is using PET fiber and PP fiber as made of the material of primary raw material；
The peanut vine powder is 150 mesh, and the calcium carbonate is nanometer calcium carbonate；
The auxiliary agent, be oxidative degradation agent, antioxidant, ultraviolet absorbing agent, lubricant, plasticizer, weight ratio 1:2:1:
3:5；
The oxidative degradation agent is iron oxide, and the antioxidant is antioxidant 1010, and the ultraviolet absorbing agent is ultraviolet light suction
Agent UV-O is received, the lubricant is oxidized polyethylene wax, and the plasticizer is glycerine；
Modified starch, the raw material including following parts by weight: 45 parts of starch, 0.3 part of activator, 1 part of oxidant, 0.2 part of nitric acid,
0.4 part of esterifying agent, 0.9 part of coupling agent,
The starch is tapioca, and the activator is potassium hydroxide aqueous solution, and the oxidant is hydrogen peroxide, the ester
Agent is calgon, and the coupling agent is titanate esters；
The preparation method of the dedicated agricultural mulching of peanut:
(1) modified starch is prepared
A, by starch with oven drying 24 hours, 120 DEG C of temperature setting；
B, the starch after drying is used into the ultra-fine grinding of high pressure draught pulverizer；
C, add water into ultra-fine starch, make starch water content 40%, stir evenly；
D, activator is added into c, carries out activating pretreatment；
E, the starch after activation is subjected to heating water bath, temperature is kept for 40 DEG C, and oxidant is added, and is reacted 4 hours；
F, nitric acid, esterifying agent, coupling agent are successively added into e, the reaction time is respectively 0.5 hour, 7 hours, 7 hours；
G, by f resulting material heated-air drying, moisture is completely removed, obtains modified starch.
(2) by automobile-used acoustical cotton leftover bits coarse crushing, melting extrusion, the material warp of extrusion are carried out by single screw extrusion machine
Become plastic pellet after drawing-off, cooling, pelletizing；
(3) by modified starch, plastic pellet, peanut vine powder, calcium carbonate, plant fiber, polyethylene terephthalate, ethylene
Acrylic copolymer, maleic anhydride, cumyl peroxide, auxiliary agent are uniformly mixed, and are put into dual-screw pelletizer and are granulated, institute
Particle puts into blow film forming in inflation film manufacturing machine again, the temperature of Blown Film is 150 DEG C, blow-up ratio be 2 to get.
Embodiment 3:
The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, the original including following parts by weight
Material: 400 parts of automobile-used acoustical cotton leftover bits, 50 parts of modified starch, 18 parts of peanut vine powder, 35 parts of calcium carbonate, poly terephthalic acid
10 parts of glycol ester, 7 parts of ethylene-acrylic copolymer, 7 parts of maleic anhydride, 3 parts of cumyl peroxide, 8 parts of auxiliary agent；
The automobile-used acoustical cotton is using PET fiber and PP fiber as made of the material of primary raw material；
The peanut vine powder is 200 mesh, and the calcium carbonate is nanometer calcium carbonate；
The auxiliary agent, be oxidative degradation agent, antioxidant, ultraviolet absorbing agent, lubricant, plasticizer, weight ratio 1:2:1:
3:5；
The oxidative degradation agent is in titanium dioxide, iron oxide and manganese oxide, and the antioxidant is antioxidant 1010, antioxidant
626, triethyl phosphate, triphenyl phosphate, the ultraviolet absorbing agent are ultraviolet absorbing agent UV-9, and the lubricant is stone
Wax, the plasticizer are glycerine, xylitol；
Modified starch, the raw material including following parts by weight: 50 parts of starch, 0.5 part of activator, 3 parts of oxidant, 0.3 part of nitric acid,
0.8 part of esterifying agent, 1 part of coupling agent,
The starch is tapioca, and the activator is sodium hydrate aqueous solution, and the oxidant is potassium permanganate, described
Esterifying agent is sodium trimetaphosphate, and the coupling agent is titanate esters；
The preparation method of the dedicated agricultural mulching of peanut:
(1) modified starch is prepared
A, by starch with oven drying 24 hours, 120 DEG C of temperature setting；
B, the starch after drying is used into the ultra-fine grinding of high pressure draught pulverizer；
C, add water into ultra-fine starch, make starch water content 50%, stir evenly；
D, activator is added into c, carries out activating pretreatment；
E, the starch after activation is subjected to heating water bath, temperature is kept for 45 DEG C, and oxidant is added, and is reacted 4 hours；
F, nitric acid, esterifying agent, coupling agent are successively added into e, the reaction time is respectively 0.5 hour, 6 hours, 8 hours；
G, by f resulting material heated-air drying, moisture is completely removed, obtains modified starch.
(2) by automobile-used acoustical cotton leftover bits coarse crushing, melting extrusion, the material warp of extrusion are carried out by single screw extrusion machine
Become plastic pellet after drawing-off, cooling, pelletizing；
(3) by modified starch, plastic pellet, peanut vine powder, calcium carbonate, plant fiber, polyethylene terephthalate, ethylene
Acrylic copolymer, maleic anhydride, cumyl peroxide, auxiliary agent are uniformly mixed, and are put into dual-screw pelletizer and are granulated, institute
Particle puts into blow film forming in inflation film manufacturing machine again, the temperature of Blown Film is 180 DEG C, blow-up ratio be 3 to get.
Embodiment 4:
The method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, the original including following parts by weight
Material: 500 parts of automobile-used acoustical cotton leftover bits, 70 parts of modified starch, 20 parts of peanut vine powder, 50 parts of calcium carbonate, poly- terephthaldehyde
15 parts of sour glycol ester, 10 parts of ethylene-acrylic copolymer, 8 parts of maleic anhydride, 5 parts of cumyl peroxide, auxiliary agent 10
Part；
The automobile-used acoustical cotton is using PET fiber and PP fiber as made of the material of primary raw material；
The peanut vine powder is 200 mesh, and the calcium carbonate is nanometer calcium carbonate；
The auxiliary agent, be oxidative degradation agent, antioxidant, ultraviolet absorbing agent, lubricant, plasticizer, weight ratio 1:2:1:
3:5；
The oxidative degradation agent is manganese oxide, and the antioxidant is triphenyl phosphate, and the ultraviolet absorbing agent is ultraviolet light suction
Agent UV-531 is received, the lubricant is tristerin, and the plasticizer is ethanol amine；
Modified starch, the raw material including following parts by weight: 70 parts of starch, 0.7 part of activator, 5 parts of oxidant, nitric acid 0.3
Part, 0.8 part of esterifying agent, 1 part of coupling agent,
The starch is tapioca, and the activator is sodium hydrate aqueous solution, and the oxidant is potassium permanganate, described
Esterifying agent is calgon, and the coupling agent is borate；
The preparation method of the dedicated agricultural mulching of peanut:
(1) modified starch is prepared
A, by starch with oven drying 24 hours, 120 DEG C of temperature setting；
B, the starch after drying is used into the ultra-fine grinding of high pressure draught pulverizer；
C, add water into ultra-fine starch, make starch water content 60%, stir evenly；
D, activator is added into c, carries out activating pretreatment；
E, the starch after activation is subjected to heating water bath, temperature is kept for 55 DEG C, and oxidant is added, and is reacted 3 hours；
F, nitric acid, esterifying agent, coupling agent are successively added into e, the reaction time is respectively 0.5 hour, 7 hours, 9 hours；
G, by f resulting material heated-air drying, moisture is completely removed, obtains modified starch.
(2) by automobile-used acoustical cotton leftover bits coarse crushing, melting extrusion, the material warp of extrusion are carried out by single screw extrusion machine
Become plastic pellet after drawing-off, cooling, pelletizing；
(3) by modified starch, plastic pellet, peanut vine powder, calcium carbonate, plant fiber, polyethylene terephthalate, ethylene
Acrylic copolymer, maleic anhydride, cumyl peroxide, auxiliary agent are uniformly mixed, and are put into dual-screw pelletizer and are granulated, institute
Particle puts into blow film forming in inflation film manufacturing machine again, the temperature of Blown Film is 190 DEG C, blow-up ratio be 4 to get.
Manufactured mulch is laid in peanut ground, the number of days since being routed to degradation:
Compared with common ground film, the degradation speed of common ground film is very slow, is unfavorable for plant growth, same kind emergence rate,
Uniformity significantly improves, and emergence is early, and output increased improves and takes off film rate and the mulch rate of recovery, and it is 2~3 times high to take off film rate, mulch
The rate of recovery improves 10%~15%.Workload is reduced, production cost is reduced.Peanut quality is improved, is brought to peasant and increases income section
The benefit of branch, reduces pollution of the residual film to soil, environment, advantageously protects farmland and ecological environment.
Claims (10)
1. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal, which is characterized in that including following
The raw material of parts by weight:
300~500 parts of automobile-used acoustical cotton leftover bits,
35~70 parts of modified starch,
15~20 parts of peanut vine powder,
20~50 parts of calcium carbonate,
8~15 parts of polyethylene terephthalate,
5~10 parts of ethylene-acrylic copolymer,
5~8 parts of maleic anhydride,
2~5 parts of cumyl peroxide,
5~10 parts of auxiliary agent；
The automobile-used acoustical cotton is using PET fiber and PP fiber as made of the material of primary raw material.
2. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 1,
It is characterized in that, modified starch, the raw material including following parts by weight:
35~70 parts of starch,
0.2~0.7 part of activator,
0.1~5 part of oxidant,
0.1~0.3 part of nitric acid,
0.3~0.8 part of esterifying agent,
0.8~1 part of coupling agent,
Water surplus.
3. the method according to claim 1 or claim 2 for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal,
It is characterized in that, the dedicated agricultural mulching preparation process of peanut the following steps are included:
(1) modified starch is prepared
A, by starch with oven drying 24 hours, 100~120 DEG C of temperature setting；
B, the starch after drying is used into the ultra-fine grinding of high pressure draught pulverizer；
C, add water into ultra-fine starch, make starch water content 15%~60%, stir evenly；
D, activator is added into c, carries out activating pretreatment；
E, the starch after activation is subjected to heating water bath, temperature is kept for 35~55 DEG C, and oxidant is added, and is reacted 3~5 hours；
F, nitric acid, esterifying agent, coupling agent are successively added into e, the reaction time is respectively 0.5~1 hour, and 5~7 hours, 4~9
Hour；
G, by f resulting material heated-air drying, moisture is completely removed, obtains modified starch；
(2) by automobile-used acoustical cotton leftover bits coarse crushing, melting extrusion is carried out by single screw extrusion machine, the material of extrusion is through leading
It stretches, cool down, becoming plastic pellet after pelletizing；
(3) by modified starch, plastic pellet, peanut vine powder, calcium carbonate, plant fiber, polyethylene terephthalate, ethylene
Acrylic copolymer, maleic anhydride, cumyl peroxide, auxiliary agent are uniformly mixed, and are put into dual-screw pelletizer and are granulated, institute
It obtains particle and puts into blowing film forming in inflation film manufacturing machine again, the temperature of Blown Film is 150~190 DEG C, and blow-up ratio is 2~4, i.e.,
?.
4. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 1,
It is characterized in that, the peanut vine powder, is 150~200 mesh；The calcium carbonate is nanometer calcium carbonate.
5. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 1,
Be characterized in that, the auxiliary agent, be oxidative degradation agent, antioxidant, ultraviolet absorbing agent, lubricant, plasticizer, weight ratio 1:
2:1:3:5.
6. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 5,
It is characterized in that, the oxidative degradation agent, one of stearic acid, sodium laurate, titanium dioxide, iron oxide and manganese oxide or several
Kind.
7. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 5,
It is characterized in that, the antioxidant, is more than one antioxidant of Hinered phenols, phosphorous acid esters or phosphoric acid ester antioxidant.
8. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 5,
It is characterized in that, the ultraviolet absorbing agent, is salicylic acid esters, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines
With the one of which of hindered amines.
9. the method for preparing the dedicated agricultural mulching of peanut using automobile-used acoustical cotton corner dead meal according to claim 5,
It is characterized in that, the lubricant, is calcium stearate, oxidized polyethylene wax, the one of which of paraffin, tristerin；It is described
Plasticizer, ethylene glycol, propylene glycol, glycerine, xylitol, mannitol and ethanol amine more than one.
10. the preparation method of the dedicated agricultural mulching of sugarcane according to claim 2, which is characterized in that the starch is cassava
Starch, the activator are sodium hydroxide or potassium hydroxide aqueous solution；The oxidant is hypohalogenous acids and its salt, persulfuric acid
Salt, hydrogen peroxide or potassium permanganate；The esterifying agent, sodium trimetaphosphate or calgon；The coupling agent is silanes, aluminium
Acid esters, titanate esters or borate.
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Application publication date: 20190125 |