CN109181167A - The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal - Google Patents
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal Download PDFInfo
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- CN109181167A CN109181167A CN201811109468.9A CN201811109468A CN109181167A CN 109181167 A CN109181167 A CN 109181167A CN 201811109468 A CN201811109468 A CN 201811109468A CN 109181167 A CN109181167 A CN 109181167A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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Abstract
The invention discloses the methods for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, raw material includes polyvinyl chloride, automobile-used acoustical cotton leftover bits, modified starch, calcium carbonate, plant fiber, glycidyl methacrylate, cumyl peroxide, nanometer heat insulating material and auxiliary agent, primary raw material is mixed into polyvinyl chloride and automobile-used acoustical cotton leftover bits, pass through starch conversion, it mixes compatible, recycle sound-absorbing material leftover bits, realize that recycling recycles, producing canopy film obtained has good translucency, heat insulating ability and weatherability, it is soft, easy moulding, there is anti-aging and stream drop characteristic simultaneously, outside with weather-proof drip performance, film surface is through handling, it is few that plasticising dissects output, dust suction is lighter, improve light transmittance, effective life, was up to 18~25 months, the aging of canopy film can effectively be delayed, replacement When, canopy film is also degradable, organic waste materials are turned to after degradation, can also by soil absorption, improve can implanting.
Description
Technical field
The present invention relates to agricultural canopy film fields, and in particular to prepares agricultural canopy film mother using automobile-used acoustical cotton corner dead meal
The method of grain.
Background technique
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.
Plastic film refers to that fusible or soluble polymer becomes soft, uniform, very thin lamella by processing and forming
Material can use as packaging or coating layer, have been widely used for the fields such as food, medicine, chemical industry.In recent years, agriculture
Industry plastic film culture underglass technology is widelyd popularize in China, and yield and area coverage all reach the first in the world, mainly
For canopy film, mulch, sunshade net, fly net, forage grass film and agricultural non-woven fabrics etc..
China is the country that agricultural plastic film usage amount is most in the world, and plastic film is in farmland using upper acquired
Heat and moisture preserving volume increase effect, obtained agricultural production generally acknowledge.In order to meet the growth of plant, Agro-film Industry has been put into greatly
Quantifier elimination solves the problems, such as that the anti-season planting vegetable in China, agriculture greenhouse film are used for the dedicated modeling of industrialized agriculture production and construction
Expect film, it is the another important technology to boost crop yield after seed, chemical fertilizer, pesticide.It is to the synergy of agricultural and the increasing of peasant
Production is of great significance.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide using automobile-used acoustical cotton corner dead meal prepare it is agricultural
The method of canopy film master batch has good translucency, heat insulating ability and weatherability, soft, easy moulding, while having anti-aging and stream
Characteristic is dripped, is had outside weather-proof drip performance, film surface is handled, and plasticising anatomy output is few, and dust suction is lighter, improves light transmittance
The features such as.
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, the original including following parts by weight
Material:
300~500 parts of polyvinyl chloride,
100~150 parts of automobile-used acoustical cotton leftover bits,
15~30 parts of modified starch,
20~50 parts of calcium carbonate,
5~15 parts of plant fiber,
5~8 parts of glycidyl methacrylate,
2~5 parts of cumyl peroxide,
2~5 parts of nanometer heat insulating material,
5~10 parts of auxiliary agent；
The calcium carbonate is nanometer calcium carbonate；
The plant fiber selects the wooden chaff, sisal fiber or waste cotton flower；
The nanometer heat insulating material is hydrotalcite or talcum powder；
The auxiliary agent is antifogging agent, antioxidant, ultraviolet absorbing agent, age resister, lubricant, plasticizer, weight ratio
For 3:1:2:0.5:0.8:2；
The antifogging agent is lauric acid glycol ester, lauric acid propylene glycol ester, lauric acid glycerine ester, lauric acid butanediol
One of ester, lauric acid pentaerythritol ester, Monoolein, animi resin monoglyceride, sorbitan carboxylic esters or
It is several；
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 age resister is selected HS-944 (362)；
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:
15~30 parts of starch,
0.05~0.5 part of activator,
0.1~1 part of oxidant,
0.03~0.3 part of nitric acid,
0.3~0.8 part of esterifying agent,
0.8~1 part of coupling agent,
Water surplus；
The starch is starch of the amylopectin content 70% or more；
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 method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal:
(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 50~65 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 polyvinyl chloride, modified starch, plastic pellet, calcium carbonate, plant fiber, glycidyl methacrylate, peroxide
Change diisopropylbenzene (DIPB), nanometer heat insulating material, auxiliary agent be uniformly mixed, put into dual-screw pelletizer in be granulated to get.
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 canopy film 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 canopy film being made into using automobile-used acoustical cotton leftover bits, the characteristics of possessing prior art canopy film, are also had heat preservation, soil moisture conservation, improved
Ground temperature, the utilization rate for improving light, can antidrip, the advantages that improving light transmittance and thermal insulation property, crops seedling stage is promoted to grow up strong and sturdy.
(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) 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.
(4) 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.
(5) plant fiber can occur biophysics degradation and change in a natural environment by microorganism, bacterium and fungi erosion
Degradation is learned, when canopy film replacement, the canopy film of raw material can be degraded in a natural environment, and the product after degradation contains simultaneously to crop
Grow beneficial element, turn to organic waste materials after degradation, can also by soil absorption, improve can implanting.
(6) 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.
(7) glycidyl methacrylate is polar monomer, and cumyl peroxide is initiator, to high molecular material
It is grafted, appropriate polar branch is introduced on its strand, using the polarity and reactivity of branch, improved in performance not
Foot, while increasing new property again.
(8) corresponding auxiliary agent is added into canopy film, increases the performance of canopy film, reduces the friction between polymer and equipment
Interior friction between power and polymer molecular chain；The compatibility of modified inorganic filler and high molecular material is greatly improved,
The dispersibility of inorganic filler is promoted, and then improves inherence and the presentation quality of macromolecule material product, has inside and outside lubrication concurrently
And plasticising performance.
(9) canopy film has good translucency, heat insulating ability and weatherability, soft, easy moulding, while having anti-aging and stream drop
Characteristic has outside weather-proof drip performance, and film surface is handled, and plasticising anatomy output is few, and dust suction is lighter, improves light transmittance,
Effective life, up to 18~25 months, can effectively delay the aging of canopy film, and when replacement, pure plastic film can also drop in canopy film
Solution, turn to organic waste materials after degradation, can also by soil absorption, improve can implanting.
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 agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, the raw material including following parts by weight: poly-
300 parts of vinyl chloride, 100 parts of automobile-used acoustical cotton leftover bits, 15 parts of modified starch, 20 parts of calcium carbonate, 5 parts of plant fiber, methyl
5 parts of glycidyl acrylate, 2 parts of cumyl peroxide, 2 parts of nanometer heat insulating material, 5 parts of auxiliary agent；
The plant fiber is the wooden chaff, and the nanometer heat insulating material is hydrotalcite；
The auxiliary agent is antifogging agent, antioxidant, ultraviolet absorbing agent, age resister, lubricant, plasticizer, weight ratio
For 3:1:2:0.5:0.8:2；
The antifogging agent is lauric acid glycol ester, and the antioxidant is antioxidant 1010, and the ultraviolet absorbing agent is purple
Ultraviolet absorbers UV-P, the age resister select HS-944 (362), and the lubricant is calcium stearate, and the plasticizer is
Ethylene glycol；
Modified starch, the raw material including following parts by weight: 15 parts of starch, 0.05 part of activator, 0.1 part of oxidant, nitric acid
0.03 part, 0.3 part of esterifying agent, 0.8 part of coupling agent,
The starch is tapioca, and the activator is sodium hydrate aqueous solution, and the oxidant is hydrogen peroxide, the ester
Agent is sodium trimetaphosphate, and the coupling agent is Aluminate；
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal:
(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 15%, 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 50 DEG C, and oxidant is added, and is reacted 5 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 polyvinyl chloride, modified starch, plastic pellet, calcium carbonate, plant fiber, glycidyl methacrylate, peroxide
Change diisopropylbenzene (DIPB), nanometer heat insulating material, auxiliary agent be uniformly mixed, put into dual-screw pelletizer in be granulated to get.
Embodiment 2:
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, the raw material including following parts by weight: poly-
350 parts of vinyl chloride, 120 parts of automobile-used acoustical cotton leftover bits, 20 parts of modified starch, 25 parts of calcium carbonate, 7 parts of plant fiber, methyl
6 parts of glycidyl acrylate, 3 parts of cumyl peroxide, 3 parts of nanometer heat insulating material, 7 parts of auxiliary agent；
The plant fiber is sisal fiber, and the nanometer heat insulating material is hydrotalcite or talcum powder；
The auxiliary agent is antifogging agent, antioxidant, ultraviolet absorbing agent, age resister, lubricant, plasticizer, weight ratio
For 3:1:2:0.5:0.8:2；
The antifogging agent is lauric acid propylene glycol ester, and the antioxidant is antioxidant 626, and the ultraviolet absorbing agent is ultraviolet
Light absorbers UV-O, the age resister select HS-944 (362), and the lubricant is oxidized polyethylene wax, the plasticizer
For propylene glycol；
Modified starch, the raw material including following parts by weight: 20 parts of starch, 0.1 part of activator, 0.3 part of oxidant, nitric acid 0.1
Part, 0.4 part of esterifying agent, 0.9 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 titanate esters；
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal:
(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 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 60 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 polyvinyl chloride, modified starch, plastic pellet, calcium carbonate, plant fiber, glycidyl methacrylate, peroxide
Change diisopropylbenzene (DIPB), nanometer heat insulating material, auxiliary agent be uniformly mixed, put into dual-screw pelletizer in be granulated to get.
Embodiment 3:
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, the raw material including following parts by weight: poly-
400 parts of vinyl chloride, 130 parts of automobile-used acoustical cotton leftover bits, 25 parts of modified starch, 30 parts of calcium carbonate, 7 parts of plant fiber, methyl
7 parts of glycidyl acrylate, 4 parts of cumyl peroxide, 4 parts of nanometer heat insulating material, 8 parts of auxiliary agent；
The plant fiber is waste cotton flower, and the nanometer heat insulating material is talcum powder；
The auxiliary agent is antifogging agent, antioxidant, ultraviolet absorbing agent, age resister, lubricant, plasticizer, weight ratio
For 3:1:2:0.5:0.8:2；
The antifogging agent is lauric acid glycerine ester, and the antioxidant is triethyl phosphate, and the ultraviolet absorbing agent is purple
Ultraviolet absorbers UV-9, the age resister select HS-944 (362), and the lubricant is paraffin, and the plasticizer is xylose
Alcohol；
Modified starch, the raw material including following parts by weight: 25 parts of starch, 0.2 part of activator, 0.5 part of oxidant, nitric acid 0.1
Part, 0.4 part of esterifying agent, 0.8 part of coupling agent,
The starch is cornstarch, and the activator is potassium hydroxide aqueous solution, and the oxidant is hydrogen peroxide, the ester
Agent is calgon, and the coupling agent is borate；
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal:
(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 50 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 0.6 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 polyvinyl chloride, modified starch, plastic pellet, calcium carbonate, plant fiber, glycidyl methacrylate, peroxide
Change diisopropylbenzene (DIPB), nanometer heat insulating material, auxiliary agent be uniformly mixed, put into dual-screw pelletizer in be granulated to get.
Embodiment 4:
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, the raw material including following parts by weight: poly-
500 parts of vinyl chloride, 150 parts of automobile-used acoustical cotton leftover bits, 30 parts of modified starch, 40 parts of calcium carbonate, 10 parts of plant fiber, methyl
8 parts of glycidyl acrylate, 5 parts of cumyl peroxide, 5 parts of nanometer heat insulating material, 10 parts of auxiliary agent；
The plant fiber is waste cotton flower, and the nanometer heat insulating material is talcum powder；
The auxiliary agent is antifogging agent, antioxidant, ultraviolet absorbing agent, age resister, lubricant, plasticizer, weight ratio
For 3:1:2:0.5:0.8:2；
The antifogging agent is lauric acid butanediol ester, and the antioxidant is triphenyl phosphate, and the ultraviolet absorbing agent is purple
Ultraviolet absorbers UV-531, the age resister select HS-944 (362), the lubricant, are tristerin, the increasing
Modeling agent is ethanol amine；
Modified starch, the raw material including following parts by weight: 30 parts of starch, 0.05 part of activator, 1 part of oxidant, nitric acid 0.1
Part, 0.8 part of esterifying agent, 1 part of coupling agent,
The starch is cornstarch, 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 borate；
The method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal:
(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 65 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 1 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 polyvinyl chloride, modified starch, plastic pellet, calcium carbonate, plant fiber, glycidyl methacrylate, peroxide
Change diisopropylbenzene (DIPB), nanometer heat insulating material, auxiliary agent be uniformly mixed, put into dual-screw pelletizer in be granulated to get.
Canopy film made of canopy film master batch Blown Film and market sale master batch of the invention is compared:
Canopy film master batch of the invention can be substantially reduced the mist degree of canopy film, significantly improve its light transmittance and tensile strength.
To further illustrate the advantages of present invention produces obtained automobile-used acoustical cotton corner dead meal agricultural canopy film master batch, hair
Canopy film obtained is used for capsicum, section melon, balsam pear, three-coloured amaranth, curled mallow, water spinach, watermelon etc. by bright people, is improved yield, is planted
The crop quality of plant is good, few pest and disease damage.
Claims (10)
1. the method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, which is characterized in that including following weight
The raw material of number:
300~500 parts of polyvinyl chloride,
100~150 parts of automobile-used acoustical cotton leftover bits,
15~30 parts of modified starch,
20~50 parts of calcium carbonate,
5~15 parts of plant fiber,
5~8 parts of glycidyl methacrylate,
2~5 parts of cumyl peroxide,
2~5 parts of nanometer heat insulating material,
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 agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal according to claim 1, feature
It is, modified starch, the raw material including following parts by weight:
15~30 parts of starch,
0.05~0.5 part of activator,
0.1~1 part of oxidant,
0.03~0.3 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 agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, special
Sign is, automobile-used acoustical cotton corner dead meal agricultural canopy film master batch, preparation process 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 50~65 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 polyvinyl chloride, modified starch, plastic pellet, calcium carbonate, plant fiber, glycidyl methacrylate, peroxide
Change diisopropylbenzene (DIPB), nanometer heat insulating material, auxiliary agent be uniformly mixed, put into dual-screw pelletizer in be granulated to get.
4. according to claim 1 or 3 methods for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, special
Sign is that the calcium carbonate is nanometer calcium carbonate；The plant fiber selects the wooden chaff, sisal fiber or waste cotton flower；It is described anti-
Aging agent is selected HS-944 (362)；The nanometer heat insulating material is hydrotalcite or talcum powder.
5. according to claim 1 or 3 methods for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal, special
Sign is that the auxiliary agent is antifogging agent, antioxidant, ultraviolet absorbing agent, age resister, lubricant, plasticizer, weight
Ratio is 3:1:2:0.5:0.8:2.
6. the method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal according to claim 5, feature
It is, the antifogging agent, is lauric acid glycol ester, lauric acid propylene glycol ester, lauric acid glycerine ester, lauric acid butanediol
One of ester, lauric acid pentaerythritol ester, Monoolein, animi resin monoglyceride, sorbitan carboxylic esters or
It is several.
7. the method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal according to claim 5, feature
It is, the antioxidant, is more than one antioxidant of Hinered phenols, phosphorous acid esters or phosphoric acid ester antioxidant；The purple
Ultraviolet absorbers, wherein for salicylic acid esters, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and hindered amines
It is a kind of.
8. the method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal according to claim 5, feature
It is, the lubricant, is calcium stearate, oxidized polyethylene wax, the one of which of paraffin, tristerin；The plasticising
Agent, ethylene glycol, propylene glycol, glycerine, xylitol, mannitol and ethanol amine more than one.
9. the method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal according to claim 2, feature
It is, the starch, is starch of the amylopectin content 70% or more.
10. the method for preparing agricultural canopy film master batch using automobile-used acoustical cotton corner dead meal according to claim 2, feature
It is, the activator, is 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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