CN111823532A - Agricultural multifunctional crystal PO light conversion greenhouse film and preparation method thereof - Google Patents
Agricultural multifunctional crystal PO light conversion greenhouse film and preparation method thereof Download PDFInfo
- Publication number
- CN111823532A CN111823532A CN202010691780.4A CN202010691780A CN111823532A CN 111823532 A CN111823532 A CN 111823532A CN 202010691780 A CN202010691780 A CN 202010691780A CN 111823532 A CN111823532 A CN 111823532A
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- density polyethylene
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Abstract
The invention discloses an agricultural multifunctional crystal PO (polyolefin) light conversion greenhouse film and a preparation method thereof, wherein the thickness of the agricultural multifunctional crystal PO light conversion greenhouse film is 0.056-0.16mm, and the agricultural multifunctional crystal PO light conversion greenhouse film sequentially comprises a coating and dripping fog dissipation release layer, a corona treatment and dripping fog dissipation adsorption layer, an elastomer tensile layer, a light conversion heat preservation layer, a heat preservation composite layer and an anti-aging protection layer from inside to outside. Weighing preparation materials of each layer according to a formula, adding the preparation materials into different hoppers of a five-layer co-extrusion film blowing machine, starting the film blowing machine, compounding through a die head, blowing, stretching, cooling and shaping, coating, drying and rolling, starting a corona treatment device after a film tube stabilizes the width and the thickness of a film and reaches a normal value, and printing, slitting, rolling and inspecting to prepare the agricultural crystal PO light conversion greenhouse film. The invention adopts the technology of five-layer blow molding and external coating of the protective layer, and the prepared product has excellent transparency, super-strong continuous fog and dripping elimination capability, enhanced heat preservation performance, long service life, static resistance, no dust adhesion and obvious heat preservation effect.
Description
Technical Field
The invention relates to the technical field of plastic films, in particular to an agricultural multifunctional crystal PO (polyolefin) light conversion greenhouse film and a preparation method thereof.
Background
The modern agricultural science and technology shows that: the method improves the illumination condition of crops, can reduce the use of pesticides and fertilizers, can realize the yield increase of the crops and improve the quality, and becomes an important development direction of modern high-tech agriculture. The light-converting agricultural film adopting the third generation physical fertilizer-light fertilizer technology is widely researched and applied at home and abroad. The light conversion agent can convert near ultraviolet light and green light in sunlight into blue light or red light, can be absorbed by pigments in plants and used for carrying out more sufficient photosynthesis, can promote root systems of crops, flourish stems and leaves, and increase yield and income, and experiments show that the yield and quality of the crops can be improved by 10-60% by adding the light conversion agent in the greenhouse film.
The light conversion film is used for cultivating crops, so that the sunlight can be fully utilized, the use of chemical fertilizers and pesticides is reduced, the high-efficiency ecological agriculture is really realized, and green food is developed.
Disclosure of Invention
The invention aims to provide an agricultural multifunctional crystal PO light conversion greenhouse film and a preparation method thereof, which can prevent the greenhouse film from dripping water and generating fog, have long fog dissipation duration and synchronous service life for more than 2 years, have high transparency, have longer service life and remarkable heat preservation effect.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the thickness of the agricultural multifunctional crystal PO light conversion greenhouse film is 0.056-0.16mm, and the greenhouse film sequentially comprises a coating and dripping fog dispersal release layer, a corona treatment and dripping fog dispersal adsorption layer, an elastomer tensile layer, a light conversion heat preservation layer, a heat preservation composite layer and an anti-aging protection layer from inside to outside according to the field covering sequence of the greenhouse film, wherein the thickness of the coating and dripping fog dispersal release layer is 10-30 mu m, the thickness of the corona treatment and dripping fog dispersal adsorption layer is 10-30 mu m, the thickness of the elastomer tensile layer is 8-20 mu m, the thickness of the heat preservation composite layer is 10-30 mu m, the thickness of the light conversion heat preservation layer is 10-30 mu m, and the thickness of the anti-aging protection layer is 8-20 mu m.
Preferably, the coating and dripping fog dispersal release layer is prepared from the following raw materials in parts by weight: 15-25 parts of cationic surfactant cetyl methyl ammonium bromide, 15-25 parts of dodecyl imidazoline cation, 5-10 parts of anionic sodium stearate, 5-10 parts of sodium dodecyl sulfate, 5-10 parts of secondary alkyl sodium sulfonate, 5-10 parts of sodium lauroyl sarcosinate, 20-25 parts of nonionic surfactant polyoxyethylene fatty acid ester, 10-15 parts of sucrose esters and 5-10 parts of calcium stearoyl lactylate.
Preferably, the corona and dripping fog dispersal adsorption layer is prepared from the following raw materials in parts by weight: 10-20 parts of 2426F type low-density polyethylene, 15-25 parts of 2420D type low-density polyethylene, 60-75 parts of 2010MA type metallocene linear polyethylene and 5-10 parts of pesticide-resistant and anti-aging master batch.
Preferably, the elastomer tensile layer is prepared from the following raw materials in parts by weight: 2420 parts of D-type low-density polyethylene 15-25 parts, 2426F-type low-density polyethylene 10-20 parts, 2010 MA-type metallocene linear polyethylene 60-75 parts, 6201FL elastomer 5-10 parts and pesticide-resistant and anti-aging master batch 5-10 parts.
Preferably, the light conversion and insulation layer is prepared from the following raw materials in parts by weight: 25-35 parts of 2426F type low-density polyethylene, 50-60 parts of V4110F type vinyl acetate (EVA), 10-20 parts of 2426K type low-density polyethylene, 5-10 parts of pesticide aging resistant master batch, 3-5 parts of light conversion master batch and 3-5 parts of heat insulation master batch.
Preferably, the heat-preservation composite layer is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 20-30 parts, V4110F type vinyl acetate (EVA) 20-30 parts, 2010MA type metallocene linear polyethylene 30-40 parts, heat preservation master batch 3-5 parts, and pesticide-resistant and anti-aging master batch 5-10 parts.
Preferably, the anti-aging protective layer is prepared from the following raw materials in parts by weight: 10-20 parts of 2426F type low-density polyethylene, 15-25 parts of 2420D type low-density polyethylene, 60-75 parts of 2010MA type metallocene linear polyethylene and 5-10 parts of pesticide-resistant and anti-aging master batch.
Preferably, the pesticide-resistant and anti-aging master batch is prepared from the following raw materials in parts by weight: 25-30 parts of powdered 7042 type linear low-density polyethylene, 20-30 parts of 2420K type low-density polyethylene, 20-30 parts of 2010MA type metallocene linear polyethylene, 0.5-1.0 part of 944 type high-efficiency light stabilizer, 0.1-0.2 part of B225 type composite antioxidant and 0.15-0.3 part of UV326 type ultraviolet absorbent.
Preferably, the light conversion master batch is prepared from the following raw materials in parts by weight: 25-30 parts of powdery 7042 type linear low-density polyethylene, 25-30 parts of 2426H type low-density polyethylene, 15-25 parts of 2010MA type metallocene linear polyethylene, 0.15-0.3 part of B225 type composite antioxidant, 7.5-10 parts of light conversion auxiliary agent and 0.2-0.6 part of hydrotalcite heat insulating agent; the heat-insulating master batch is prepared from the following raw materials in parts by weight: 25-30 parts of powdered 7042 type linear low-density polyethylene, 25-30 parts of 2426H type low-density polyethylene, 15-25 parts of 2010MA type metallocene linear polyethylene, 0.15-0.3 part of B225 type composite antioxidant and 0.2-0.6 part of hydrotalcite heat insulating agent.
A preparation method of an agricultural multifunctional crystal PO light conversion greenhouse film comprises the following steps:
step one, weighing 25-30 parts of powdered 7042 type linear low-density polyethylene, 20-30 parts of 2420K type low-density polyethylene, 20-30 parts of 2010MA type metallocene linear polyethylene, 0.5-1.0 part of 944 type high-efficiency light stabilizer, 0.1-0.2 part of B225 type composite antioxidant and 0.15-0.3 part of UV326 type ultraviolet absorbent according to the formula of the pesticide-resistant and aging-resistant master batch, adding the materials into a double-screw plastic extruder, and manufacturing the pesticide-resistant and aging-resistant master batch when the temperature of the double-screw plastic extruder is 160-220 ℃;
step two, weighing 25-30 parts of 7042 type linear low-density polyethylene powder, 25-30 parts of 2426H type low-density polyethylene powder, 15-25 parts of 2010MA type metallocene linear polyethylene powder, 0.15-0.3 part of B225 type composite antioxidant, 7.5-10 parts of light conversion auxiliary agent and 0.2-0.6 part of hydrotalcite heat insulating agent according to the formula of the light conversion heat insulating master batch, adding the materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160-220 ℃, and manufacturing the light conversion heat insulating master batch;
step three, weighing 25-30 parts of 7042 type linear low-density polyethylene powder, 25-30 parts of 2426H type low-density polyethylene powder, 15-25 parts of 2010MA type metallocene linear polyethylene powder, 0.15-0.3 part of B225 type composite antioxidant and 0.2-0.6 part of hydrotalcite heat insulating agent according to the formula of the heat insulating master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160-;
weighing 15-25 parts of cationic surfactant cetyl methyl ammonium bromide, 15-25 parts of dodecyl imidazoline cations, 5-10 parts of anionic sodium stearate, 5-10 parts of sodium dodecyl sulfate, 5-10 parts of secondary alkyl sodium sulfonate, 5-10 parts of sodium lauroyl sarcosinate, 20-25 parts of nonionic surfactant polyoxyethylene fatty acid ester, 10-15 parts of sucrose esters and 5-10 parts of calcium stearoyl lactylate according to the formula of the coating and dripping defogging release layer (1), adding the materials into a coating tank with a stirrer at normal temperature, and diluting and mixing the raw materials and the purified water according to the weight ratio of 1:100 to obtain a coating liquid material of the coating and dripping defogging release layer;
step five, weighing 2426F type low-density polyethylene 10-20 parts, 2420D type low-density polyethylene 15-25 parts, 2010MA type metallocene linear polyethylene 60-75 parts and pesticide-resistant and aging-resistant master batch 5-10 parts according to the formula of the corona treatment and the dripping fog-dissipation adsorption layer (2), and adding the materials into a first hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step six, weighing 2420 parts of D-type low-density polyethylene 15-25 parts, 2426 parts of F-type low-density polyethylene 10-20 parts, 2010 MA-type metallocene linear polyethylene 60-75 parts, 6201FL elastomer 5-10 parts and the pesticide-resistant and aging-resistant master batch prepared in the step one according to the formula of the elastomer tensile layer (3), and adding the master batch into a second hopper of a five-layer co-extrusion film blowing machine for uniformly mixing;
seventhly, weighing 2426F type low-density polyethylene 25-35 parts, V4110F type vinyl acetate (EVA) 50-60 parts, 2426K type low-density polyethylene 10-20 parts, pesticide-resistant and aging-resistant master batch prepared in the first step, light conversion master batch prepared in the second step and heat insulation master batch 3-5 parts according to the formula of the light conversion heat insulation layer (4), and adding the master batches into a third hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
eighthly, according to the formula of the heat-insulation composite layer (5), weighing 2426 parts of F-type low-density polyethylene 20-30 parts, V4110F-type vinyl acetate (EVA) 20-30 parts, 2010 MA-type metallocene linear polyethylene 30-40 parts, 3-5 parts of the heat-insulation master batch prepared in the third step and 5-10 parts of the pesticide-resistant and aging-resistant master batch prepared in the first step, and adding the materials into a fourth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step nine, weighing 2426F type low-density polyethylene 10-20 parts, 2420D type low-density polyethylene 15-25 parts, 2010MA type metallocene linear polyethylene 60-75 parts and the pesticide-resistant and aging-resistant master batch 5-10 parts according to the formula of the anti-aging protective layer (6), and adding the materials into a fifth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
and step ten, controlling the temperature of the five-layer co-extrusion film blowing machine to rise to 160-wall 220 ℃, starting the five-layer co-extrusion film blowing machine, compounding by a die head, blowing, stretching, cooling and shaping, coating, drying and rolling, starting a corona treatment device after the width and the thickness of the film pipe stable film sheet reach normal, and printing, cutting, rolling and inspecting to prepare the agricultural crystal PO light conversion greenhouse film.
The 2420D type low-density polyethylene does not contain a slipping agent, and the melt flow rate is 1.0g/10 min; the VA content of the V4110F type vinyl acetate (EVA) is 14 percent, and the melt flow rate is 1.0g/10 min; 2426F type low density polyethylene contains slipping agent, and melt flow rate is 0.75g/10 min; 2426 the low density polyethylene of type 2426K contains slipping agent, and the melt flow rate is 4.0g/10 min; the 7042 type linear low density polyethylene contains slipping agent, and the melt flow rate is 2.0g/10 min; 2426H type low density polyethylene contains slipping agent, and has melt flow rate of 2.0g/10 min.
Through inspection, the longitudinal tensile strength/transverse tensile strength of the agricultural crystal PO light conversion greenhouse film prepared by the invention is not less than 20MPa, the breaking elongation is not less than 400%, the right-angle tearing load is not less than 80kN/m, the light transmittance is not less than 90%, the haze is not less than 20%, the flow drop failure time is more than 12d, the initial flow drop time is less than 400s, the flow drop fog dissipation duration and the service life are synchronous, the period is more than two years, the physical and mechanical properties are more than 1 time of indexes of ethylene-vinyl acetate copolymer (EVA) blow-molded greenhouse films for agriculture of the national standard GB/T20202-2006, and the method has important significance for developing high-tech agriculture.
Raw materials used in the invention are purchased from the market, wherein 7042 linear low-density polyethylene Lanzhou petrochemical company or Daqing petrochemical company products, 2420D low-density polyethylene imported Iran or Daqing petrochemical company products, 2426F or 2426H type low-density polyethylene Lanzhou petrochemical company or Daqing petrochemical company products, 2010MA type metallocene linear low-density polyethylene is a product of American Exxon Mobil company, V4110F vinyl acetate (EVA) resin is a product of Yangbai petrochemical company, a pesticide-resistant light stabilizer is a product of American Soowei company, 944 light stabilizer is a product of Beijing Tiangang assistant Limited company, 225 antioxidant is a product of Beijing Jinggang assistant company, rare earth light conversion aid is a product of Hunan Dada or Shandong Dabo broad force company, and hydrotalcite heat-insulating agent is a product of Dalian Max Minda.
Wherein: 2420D type low density polyethylene contains no slipping agent, the melt flow rate is 1.0g/10min, the light transmittance of the product is low, the elongation at break is high, the flexibility is good, but the tensile strength is low. 2426F type low density polyethylene contains slipping agent, the melt flow rate is 0.75g/10min, the light transmittance of the product is high, the elongation at break is low, the flexibility is poor, but the tensile strength is high. 2426K type low density polyethylene contains slipping agent, the melt flow rate is 4.0g/10min, the light transmittance of the product is high, the elongation at break is high, the flexibility is good, but the tensile strength is low. The three kinds of low-density polyethylene are matched according to a scientific proportion, the performances of the three kinds of low-density polyethylene are mutually complemented, the stability and the efficiency of producing the film bubble of the greenhouse film can be improved, the indexes of strength and elongation at break are improved, the light transmittance is improved, the service life is prolonged, and the product quality is ensured.
The 2010MA type metallocene linear polyethylene does not contain a slipping agent, the melt flow rate is 1.0g/10min, and the transparency, the elongation, the flexibility, the puncture resistance and the aging resistance of a film product, the stability of a produced film bubble and the like can be improved.
The V4110F type vinyl acetate (EVA) does not contain slipping agent, the melt flow rate is 1.0g/10min, and the heat preservation, transparency, elongation, flexibility, puncture resistance and the like of the film product are mainly improved.
The pesticide-resistant light stabilizer A400 can prevent acidic pesticides on fruits and vegetables from splashing on the film to cause the film to age in advance, namely, the pesticides are neutralized through chemical reaction, and the service life of the film is prolonged.
The light stabilizer 944 can have good migration resistance and high cost performance, and can prolong the service life of the film.
The B225 type composite antioxidant is a composite auxiliary agent for preventing the film from being rapidly aged due to thermal oxidation in the processing process and the using process.
The ultraviolet absorbent is an auxiliary agent which absorbs and destroys ultraviolet rays in solar illumination in the using process of the film and prevents the film from being rapidly aged due to the ultraviolet irradiation.
The rare earth composite light conversion agent added in the light conversion heat preservation layer is a rare earth luminescent material of a rare earth metal fluorescent compound system, takes an alkaline earth metal compound as a bitter substance, takes rare earth metal and other doped metal elements as an activator, and has the advantages of high luminous efficiency, strong photo-thermal stability, rich rotatable light source, wide emission amplitude bandwidth, coincidence of an emission spectrum and a plant photosynthesis spectrum, and the like, wherein the emission spectra are respectively 400-450nm and 590-670nm, and the light transmittance is 93-100%. The light absorption rate in the range of 200-480nm is 100 percent, the conversion rate of the absorbed ultraviolet light to the red light region is 90-96 percent, the photosynthesis effect and the light energy utilization rate of the product are improved, and the rapid development, growth and maturity of crops are promoted.
The hydrotalcite heat preservation agent added in the light conversion heat preservation layer is a heat preservation agent with high infrared ray blocking rate, and when the temperature outside the greenhouse is lower than the temperature inside the greenhouse at night, the hydrotalcite shields the heat tissues inside the greenhouse from conducting outwards, so that the temperature needed by crops inside the greenhouse is ensured, and the frostbite is prevented.
The width of the product prepared by the invention is 4000-18000mm, and the thickness is 0.06-0.15 mm. The main application field is as follows: the product is mainly used for the covering cultivation of overwintering solar greenhouses, spring arched sheds and the like of overwintering tomatoes, eggplants, hot peppers, cucumbers, watermelons, grapes and Chinese chives and various flowers, vegetables and fruits in northern areas. The product should not have the defects of air bubbles, impurities, stripes, perforations, folds and the like which influence the use, the film package is neat, the protection is effective, and the adhesion and the scratch are prevented.
The invention adopts the technology of five-layer blow molding and external coating protective layer, and the prepared product has the following properties:
(1) excellent transparency: the high-grade olefin raw material is adopted, so that the haze is low and the transparency is high. Therefore, the light transmittance is high in the morning, the scattering rate is low, and the temperature can be rapidly increased in the morning;
(2) super-strong continuous fog and dripping elimination capacity: the fog dispersal dripping agent is adopted for coating and drying treatment, so that the generation of fog can be inhibited, and the fog dispersal dripping period can be synchronous with the service life of the agricultural film;
(3) strengthening the heat preservation performance: the hydrotalcite organic heat preservation auxiliary agent is adopted in the film, so that most infrared rays radiated from the inside of the greenhouse are reflected, heat loss is effectively controlled, the growth temperature of crops at night is ensured, the maturation period is shortened, and the freezing injury to the crops caused by sudden temperature drop at night can be effectively prevented;
(4) the service life is long: the antioxidant and the light stabilizer are adopted, so that the service life of the agricultural film is greatly prolonged, the agricultural film can be normally used for more than 3 years, and the agricultural film has super-strong tensile strength and tear strength;
(5) antistatic and dust-free: the light conversion, heat preservation, light stabilizer and other nano material technologies are adopted, the surface is in a six-layer structure, and the surface is subjected to antistatic treatment, so that precipitates are not easily adsorbed, and the effect of keeping high light transmittance for a long time is achieved;
(6) the heat-insulating effect is obvious, and the temperature of the greenhouse is increased by 1-5 ℃ compared with that of a polyethylene double-prevention film; the damage of ultraviolet rays and green light to crops is prevented, red orange light and blue light beneficial to the growth of plants are increased, the photosynthesis efficiency is accelerated, the basic stability of the temperature in the greenhouse and the ground surface can be kept, the heat loss in the greenhouse is reduced, the growth of the plants can be promoted, the maturation period is shortened, and the green tea can be sold on the market for more than 10 days in advance; the main quality indexes of the fruits and the vegetables are improved: the fruit sugar is improved by more than 10%, the Vc content is improved by more than 18%, the density is improved by more than 2%, the titratable acid is reduced by about 10%, the commodity rate is improved by more than 20%, and the yield and the economic benefit are respectively improved by more than 20%.
Drawings
FIG. 1 is a schematic structural view of an agricultural multifunctional crystal PO-light-conversion greenhouse film;
FIG. 2 is a flow chart of a preparation process of an agricultural multifunctional crystal PO-light conversion greenhouse film;
FIG. 3 is a flow chart of the preparation process of the pesticide-resistant and aging-resistant master batch, the light conversion master batch and the heat preservation master batch for the agricultural multifunctional crystal PO light conversion greenhouse film.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples.
Example 1
As shown in figure 1, the agricultural multifunctional crystal PO light conversion greenhouse film has the thickness of 0.056mm, and sequentially comprises a coating and dripping fog dissipation release layer 1, a corona treatment and dripping fog dissipation adsorption layer 2, an elastomer tensile layer 3, a light conversion heat preservation layer 4, a heat preservation composite layer 5 and an anti-aging protection layer 6 from inside to outside according to the field covering sequence of the greenhouse film, wherein the coating and dripping fog dissipation release layer 1 is 10 microns in thickness, the corona treatment and dripping fog dissipation adsorption layer 2 is 10 microns in thickness, the elastomer tensile layer 3 is 8 microns in thickness, the heat preservation composite layer 4 is 10 microns in thickness, the light conversion heat preservation layer 5 is 10 microns in thickness, and the anti-aging protection layer 6 is 8 microns in thickness.
The coating and dripping fog dispersal release layer 1 is prepared from the following raw materials in parts by weight: 15 parts of cationic surfactant cetyl methyl ammonium bromide, 15 parts of dodecyl imidazoline cation, 5 parts of anionic sodium stearate, 5 parts of sodium dodecyl sulfate, 5 parts of secondary alkyl sodium sulfonate, 5 parts of sodium lauroyl sarcosinate, 20 parts of nonionic surfactant polyoxyethylene fatty acid ester, 10 parts of sucrose esters and 5 parts of calcium stearoyl lactylate.
The corona and dripping fog dispersal adsorption layer 2 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 10 parts, 2420D type low-density polyethylene 15 parts, 2010MA type metallocene linear polyethylene 60 parts and pesticide aging resistant master batch 5 parts.
The elastomer tensile layer 3 is prepared from the following raw materials in parts by weight: 2420 parts of 15 parts of D-type low-density polyethylene, 10 parts of 2426F-type low-density polyethylene, 60 parts of 2010 MA-type metallocene linear polyethylene, 5 parts of 6201FL elastomer and 5 parts of pesticide-resistant and anti-aging master batch.
The light conversion heat insulation layer 4 is prepared from the following raw materials in parts by weight: 25 parts of 2426F type low-density polyethylene, 50 parts of V4110F type vinyl acetate (EVA), 10 parts of 2426K type low-density polyethylene, 5 parts of pesticide aging resistant master batch, 3 parts of light conversion master batch and 3 parts of heat preservation master batch.
The heat-preservation composite layer 5 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 20 parts, V4110F type vinyl acetate (EVA) 20 parts, 2010MA type metallocene linear polyethylene 30 parts, heat-insulating master batch 3 parts and pesticide-resistant and anti-aging master batch 5 parts.
The anti-aging protective layer 6 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 10 parts, 2420D type low-density polyethylene 15 parts, 2010MA type metallocene linear polyethylene 60 parts and pesticide aging resistant master batch 5 parts.
The pesticide aging resistant master batch is prepared from the following raw materials in parts by weight: 25 parts of powdered 7042 type linear low-density polyethylene, 20 parts of 2420K type low-density polyethylene, 20 parts of 2010MA type metallocene linear polyethylene, 0.5 part of 944 type high-efficiency light stabilizer, 0.1 part of B225 type composite antioxidant and 0.15 part of UV326 type ultraviolet absorbent.
The light conversion master batch is prepared from the following raw materials in parts by weight: 25 parts of powdered 7042 type linear low-density polyethylene, 25 parts of 2426H type low-density polyethylene, 15 parts of 2010MA type metallocene linear polyethylene, 0.15 part of B225 type composite antioxidant, 7.5 parts of light conversion additive and 0.2 part of hydrotalcite heat insulating agent; the heat-insulating master batch is prepared from the following raw materials in parts by weight: 25 parts of powdered 7042 type linear low-density polyethylene, 25 parts of 2426H type low-density polyethylene, 15 parts of 2010MA type metallocene linear polyethylene, 0.15 part of B225 type composite antioxidant and 0.2 part of hydrotalcite heat-insulating agent.
A preparation method of an agricultural multifunctional crystal PO light conversion greenhouse film is disclosed, and the preparation method comprises the following steps:
step one, weighing 25 parts of powdery 7042 type linear low-density polyethylene, 20 parts of 2420K type low-density polyethylene, 20 parts of 2010MA type metallocene linear polyethylene, 0.5 part of 944 type high-efficiency light stabilizer, 0.1 part of B225 type composite antioxidant and 0.15 part of UV326 type ultraviolet absorbent according to the formula of the pesticide-resistant and aging-resistant master batch, adding the materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160 ℃, and manufacturing the pesticide-resistant and aging-resistant master batch;
step two, weighing 25 parts of powdery 7042 type linear low-density polyethylene, 25 parts of 2426H type low-density polyethylene, 15 parts of 2010MA type metallocene linear polyethylene, 0.15 part of B225 type composite antioxidant, 7.5 parts of light conversion auxiliary agent and 0.2 part of hydrotalcite heat insulating agent according to the formula of the light conversion heat insulating master batch, adding the materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160 ℃, and manufacturing the light conversion heat insulating master batch;
step three, weighing 25 parts of powdered 7042 type linear low-density polyethylene, 25 parts of 2426H type low-density polyethylene, 15 parts of 2010MA type metallocene linear polyethylene, 0.15 part of B225 type composite antioxidant and 0.2 part of hydrotalcite heat-insulating agent according to the formula of the heat-insulating master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160 ℃, and manufacturing the light-emitting heat-insulating master batch;
weighing 15 parts of cationic surfactant cetyl methyl ammonium bromide, 15 parts of dodecyl imidazoline cations, 5 parts of anionic sodium stearate, 5 parts of sodium dodecyl sulfate, 5 parts of secondary alkyl sodium sulfonate, 5 parts of sodium lauroyl sarcosinate, 20 parts of nonionic surfactant fatty acid polyoxyethylene ester, 10 parts of sucrose esters and 5 parts of calcium stearoyl lactate according to the formula of the coating and dripping defogging release layer 1, adding the materials into a coating tank with a stirrer at normal temperature, and diluting and mixing the raw materials and the purified water according to the weight ratio of 1:100 to obtain a coating liquid material of the coating and dripping defogging release layer;
step five, weighing 2426F type low-density polyethylene 10 parts, 2420D type low-density polyethylene 15 parts, 2010MA type metallocene linear polyethylene 60 parts and pesticide-resistant and anti-aging master batch 5 parts according to the formula of the corona treatment and dripping fog-dissipation adsorption layer 2, and adding the materials into a first hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step six, weighing 2420D type low-density polyethylene 15 parts, 2426F type low-density polyethylene 10 parts, 2010MA type metallocene linear polyethylene 60 parts, 6201FL elastomer 5 parts and the pesticide-resistant and aging-resistant master batch 5 parts according to the formula of the elastomer tensile layer 3, and adding the weighed materials into a second hopper of the five-layer co-extrusion film blowing machine for uniform mixing;
seventhly, weighing 2426F type low-density polyethylene 25 parts, V4110F type vinyl acetate (EVA) 50 parts, 2426K type low-density polyethylene 10 parts, pesticide-resistant and aging-resistant master batch prepared in the first step, light conversion master batch prepared in the second step and heat insulation master batch 3 parts according to the formula of the light conversion heat insulation layer 4, and adding the master batches into a third hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step eight, weighing 2426F type low-density polyethylene 20 parts, V4110F type vinyl acetate (EVA) 20 parts, 2010MA type metallocene linear polyethylene 30 parts, heat-insulating master batch 3 parts prepared in the step three and pesticide-resistant and aging-resistant master batch 5 parts according to the formula of the heat-insulating composite layer 5, and adding the materials into a fourth hopper of a five-layer co-extrusion film blowing machine for uniformly mixing;
step nine, weighing 2426F type low-density polyethylene 10 parts, 2420D type low-density polyethylene 15 parts, 2010MA type metallocene linear polyethylene 60 parts and the pesticide-resistant and aging-resistant master batch 5 parts according to the formula of the anti-aging protective layer 6, and adding the weighed materials into a fifth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
and step ten, controlling the temperature of the five-layer co-extrusion film blowing machine to rise to 160 ℃, starting the five-layer co-extrusion film blowing machine, compounding by using a die head, blowing, stretching, cooling and shaping, coating, drying and rolling, starting a corona treatment device after the width and the thickness of the film are stabilized to be normal, and printing, slitting, rolling and inspecting to prepare the agricultural crystal PO light conversion greenhouse film.
Through inspection, the longitudinal tensile strength/transverse tensile strength of the agricultural crystal PO light conversion greenhouse film prepared by the method is 20MPa, the breaking elongation is larger than or equal to 400%, the right-angle tearing load is 85kN/m, the light transmittance is 93%, the haze is 20%, the droplet failure time is 12d, the initial droplet time is 400s, the droplet fog dissipation duration and the service life are synchronous and reach more than two years, and the physical and mechanical properties exceed the indexes of agricultural ethylene-vinyl acetate copolymer (EVA) blow-molded greenhouse film in national standard GB/T20202-2006.
Example 2
The thickness of the agricultural multifunctional crystal PO light conversion greenhouse film is 0.16mm, and the agricultural multifunctional crystal PO light conversion greenhouse film sequentially comprises a coating and dripping fog dissipation release layer 1, a corona treatment and dripping fog dissipation adsorption layer 2, an elastomer tensile layer 3, a light conversion heat preservation layer 4, a heat preservation composite layer 5 and an anti-aging protection layer 6 from inside to outside according to the field covering sequence of the greenhouse film, wherein the thickness of the coating and dripping fog dissipation release layer 1 is 30 mu m, the thickness of the corona treatment and dripping fog dissipation adsorption layer 2 is 30 mu m, the thickness of the elastomer tensile layer 3 is 20 mu m, the thickness of the heat preservation composite layer 4 is 30 mu m, the thickness of the light conversion heat preservation layer 5 is 30 mu m, and the thickness of the anti-aging protection layer 6 is 20 mu m.
The coating and dripping fog dispersal release layer 1 is prepared from the following raw materials in parts by weight: 25 parts of cationic surfactant cetyl methyl ammonium bromide, 25 parts of dodecyl imidazoline cation, 10 parts of anionic sodium stearate, 10 parts of sodium dodecyl sulfate, 10 parts of secondary alkyl sodium sulfonate, 10 parts of sodium lauroyl sarcosinate, 25 parts of nonionic surfactant fatty acid polyoxyethylene ester, 15 parts of sucrose esters and 10 parts of calcium stearoyl lactylate.
The corona and dripping fog dispersal adsorption layer 2 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 20 parts, 2420D type low-density polyethylene 25 parts, 2010MA type metallocene linear polyethylene 75 parts and pesticide aging resistant master batch 10 parts.
The elastomer tensile layer 3 is prepared from the following raw materials in parts by weight: 2420 parts of 25 parts of D-type low-density polyethylene, 20 parts of 2426F-type low-density polyethylene, 75 parts of 2010 MA-type metallocene linear polyethylene, 10 parts of 6201FL elastomer and 10 parts of pesticide-resistant and anti-aging master batch.
The light conversion heat insulation layer 4 is prepared from the following raw materials in parts by weight: 35 parts of 2426F type low-density polyethylene, 60 parts of V4110F type vinyl acetate (EVA), 20 parts of 2426K type low-density polyethylene, 10 parts of pesticide aging resistant master batch, 5 parts of light conversion master batch and 5 parts of heat preservation master batch.
The heat-preservation composite layer 5 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 30 parts, V4110F type vinyl acetate (EVA) 30 parts, 2010MA type metallocene linear polyethylene 40 parts, heat-insulating master batch 5 parts and pesticide-resistant and anti-aging master batch 10 parts.
The anti-aging protective layer 6 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 20 parts, 2420D type low-density polyethylene 25 parts, 2010MA type metallocene linear polyethylene 75 parts and pesticide aging resistant master batch 10 parts.
The pesticide aging resistant master batch is prepared from the following raw materials in parts by weight: 30 parts of powdered 7042 type linear low-density polyethylene, 30 parts of 2420K type low-density polyethylene, 30 parts of 2010MA type metallocene linear polyethylene, 1.0 part of 944 type high-efficiency light stabilizer, 0.2 part of B225 type composite antioxidant and 0.3 part of UV326 type ultraviolet absorbent.
The light conversion master batch is prepared from the following raw materials in parts by weight: 30 parts of powdered 7042 type linear low-density polyethylene, 30 parts of 2426H type low-density polyethylene, 25 parts of 2010MA type metallocene linear polyethylene, 0.3 part of B225 type composite antioxidant, 10 parts of light conversion auxiliary agent and 0.6 part of hydrotalcite heat insulating agent; the heat-insulating master batch is prepared from the following raw materials in parts by weight: 30 parts of powdered 7042 type linear low-density polyethylene, 30 parts of 2426H type low-density polyethylene, 25 parts of 2010MA type metallocene linear polyethylene, 0.3 part of B225 type composite antioxidant and 0.6 part of hydrotalcite heat insulating agent.
A preparation method of an agricultural multifunctional crystal PO light conversion greenhouse film is disclosed, and the preparation method comprises the following steps:
weighing 30 parts of powdered 7042 type linear low-density polyethylene, 30 parts of 2420K type low-density polyethylene, 30 parts of 2010MA type metallocene linear polyethylene, 1.0 part of 944 type efficient light stabilizer, 0.2 part of B225 type composite antioxidant and 0.3 part of UV326 type ultraviolet absorbent according to the formula of the pesticide-resistant and aging-resistant master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 220 ℃, and manufacturing the pesticide-resistant and aging-resistant master batch;
weighing 30 parts of powdered 7042 type linear low-density polyethylene, 30 parts of 2426H type low-density polyethylene, 25 parts of 2010MA type metallocene linear polyethylene, 0.3 part of B225 type composite antioxidant, 10 parts of light conversion auxiliary agent and 0.6 part of hydrotalcite heat insulating agent according to the formula of the light conversion heat insulating master batch, adding the materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 220 ℃, and manufacturing the light conversion heat insulating master batch;
weighing 30 parts of 7042 type linear low-density polyethylene powder, 30 parts of 2426H type low-density polyethylene powder, 25 parts of 2010MA type metallocene linear polyethylene powder, 0.3 part of B225 type composite antioxidant and 0.6 part of hydrotalcite heat-insulating agent according to the formula of the heat-insulating master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 220 ℃, and manufacturing the light-emitting heat-insulating master batch;
weighing 25 parts of cationic surfactant cetyl methyl ammonium bromide, 25 parts of dodecyl imidazoline cations, 10 parts of anionic sodium stearate, 10 parts of sodium dodecyl sulfate, 10 parts of secondary alkyl sodium sulfonate, 10 parts of sodium lauroyl sarcosinate, 25 parts of nonionic surfactant fatty acid polyoxyethylene ester, 15 parts of sucrose esters and 10 parts of calcium stearoyl lactate according to the formula of the coating and dripping defogging release layer 1, adding the materials into a coating tank with a stirrer at normal temperature, and diluting and mixing the raw materials and the purified water according to the weight ratio of 1:100 to obtain a coating liquid material of the coating and dripping defogging release layer;
step five, weighing 2426F type low-density polyethylene 20 parts, 2420D type low-density polyethylene 25 parts, 2010MA type metallocene linear polyethylene 75 parts and pesticide-resistant and anti-aging master batch 10 parts according to the formula of the corona treatment and dripping fog-dissipation adsorption layer 2, and adding the weighed materials into a first hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step six, weighing 2420 parts of D-type low-density polyethylene 25, 2426 parts of F-type low-density polyethylene 20, 2010 MA-type metallocene linear polyethylene 75, 6201FL elastomer 10 and 10 parts of the pesticide-resistant and aging-resistant master batch prepared in the step one according to the formula of the elastomer tensile layer 3, and adding the weighed materials into a second hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
seventhly, weighing 2426F type low-density polyethylene 35 parts, V4110F type vinyl acetate (EVA) 60 parts, 2426K type low-density polyethylene 20 parts, pesticide-resistant and aging-resistant master batch prepared in the first step, light conversion master batch prepared in the second step and heat preservation master batch prepared in the third step according to the formula of the light conversion heat preservation layer 4, and adding the master batches into a third hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
eighthly, weighing 2426F type low-density polyethylene 30 parts, V4110F type vinyl acetate (EVA) 30 parts, 2010MA type metallocene linear polyethylene 40 parts, the thermal insulation master batch 5 parts prepared in the third step and the pesticide and aging resistant master batch 10 parts prepared in the first step according to the formula of the thermal insulation composite layer 5, and adding the materials into a fourth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step nine, weighing 2426F type low-density polyethylene 20 parts, 2420D type low-density polyethylene 25 parts, 2010MA type metallocene linear polyethylene 75 parts and the pesticide-resistant and aging-resistant master batch 10 parts according to the formula of the anti-aging protective layer 6, and adding the weighed materials into a fifth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
and step ten, controlling the temperature of the five-layer co-extrusion film blowing machine to rise to 220 ℃, starting the five-layer co-extrusion film blowing machine, compounding by using a die head, blowing, stretching, cooling and shaping, coating, drying and rolling, starting a corona treatment device after the width and the thickness of the film are stabilized to be normal, and printing, slitting, rolling and inspecting to prepare the agricultural crystal PO light conversion greenhouse film.
Through inspection, the agricultural crystal PO light conversion greenhouse film prepared by the method has the advantages of 26MPa of longitudinal tensile strength/transverse tensile strength, 450% of breaking elongation, 82kN/m of right-angle tearing load, 90% of light transmittance, 20% of haze, 13d of drip failure time, 395s of drip initial drip time, synchronous drip fog dissipation duration and service life, more than two years and physical and mechanical properties exceeding the indexes of agricultural ethylene-vinyl acetate copolymer (EVA) blow-molded greenhouse film in national standard GB/T20202-2006.
Example 3
The thickness of the agricultural multifunctional crystal PO light conversion greenhouse film is 0.112mm, and the agricultural multifunctional crystal PO light conversion greenhouse film sequentially comprises a coating and dripping fog dissipation release layer 1, a corona treatment and dripping fog dissipation adsorption layer 2, an elastomer tensile layer 3, a light conversion heat preservation layer 4, a heat preservation composite layer 5 and an anti-aging protection layer 6 from inside to outside according to the field covering sequence of the greenhouse film, wherein the thickness of the coating and dripping fog dissipation release layer 1 is 20 mu m, the thickness of the corona treatment and dripping fog dissipation adsorption layer 2 is 20 mu m, the thickness of the elastomer tensile layer 3 is 16 mu m, the thickness of the heat preservation composite layer 4 is 20 mu m, the thickness of the light conversion heat preservation layer 5 is 20 mu m, and the thickness of the anti-aging protection layer 6 is 16 mu m.
The coating and dripping fog dispersal release layer 1 is prepared from the following raw materials in parts by weight: 20 parts of cationic surfactant cetyl methyl ammonium bromide, 20 parts of dodecyl imidazoline cation, 8 parts of anionic sodium stearate, 8 parts of sodium dodecyl sulfate, 8 parts of secondary alkyl sodium sulfonate, 8 parts of sodium lauroyl sarcosinate, 23 parts of nonionic surfactant fatty acid polyoxyethylene ester, 14 parts of sucrose esters and 8 parts of calcium stearoyl lactylate.
The corona and dripping fog dispersal adsorption layer 2 is prepared from the following raw materials in parts by weight: 13 parts of 2426F type low-density polyethylene, 18 parts of 2420D type low-density polyethylene, 65 parts of 2010MA type metallocene linear polyethylene and 8 parts of pesticide aging resistant master batch.
The elastomer tensile layer 3 is prepared from the following raw materials in parts by weight: 2420 parts of 20 parts of D type low-density polyethylene, 12 parts of 2426F type low-density polyethylene, 65 parts of 2010MA type metallocene linear polyethylene, 8 parts of 6201FL elastomer and 8 parts of pesticide-resistant and anti-aging master batch.
The light conversion heat insulation layer 4 is prepared from the following raw materials in parts by weight: 30 parts of 2426F type low-density polyethylene, 55 parts of V4110F type vinyl acetate (EVA), 15 parts of 2426K type low-density polyethylene, 8 parts of pesticide aging resistant master batch, 4 parts of light conversion master batch and 4 parts of heat preservation master batch.
The heat-preservation composite layer 5 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 25 parts, V4110F type vinyl acetate (EVA) 25 parts, 2010MA type metallocene linear polyethylene 35 parts, heat-insulating master batch 4 parts and pesticide-resistant and anti-aging master batch 8 parts.
The anti-aging protective layer 6 is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 15 parts, 2420D type low-density polyethylene 20 parts, 2010MA type metallocene linear polyethylene 68 parts and pesticide aging resistant master batch 8 parts.
The pesticide aging resistant master batch is prepared from the following raw materials in parts by weight: 28 parts of powdered 7042 type linear low-density polyethylene, 25 parts of 2420K type low-density polyethylene, 25 parts of 2010MA type metallocene linear polyethylene, 0.8 part of 944 type high-efficiency light stabilizer, 0.15 part of B225 type composite antioxidant and 0.24 part of UV326 type ultraviolet absorbent.
The light conversion master batch is prepared from the following raw materials in parts by weight: 28 parts of powdered 7042 type linear low-density polyethylene, 28 parts of 2426H type low-density polyethylene, 20 parts of 2010MA type metallocene linear polyethylene, 0.24 part of B225 type composite antioxidant, 8 parts of light conversion auxiliary agent and 0.5 part of hydrotalcite heat insulating agent; the heat-insulating master batch is prepared from the following raw materials in parts by weight: 28 parts of powdered 7042 type linear low-density polyethylene, 28 parts of 2426H type low-density polyethylene, 20 parts of 2010MA type metallocene linear polyethylene, 0.25 part of B225 type composite antioxidant and 0.4 part of hydrotalcite heat insulating agent.
A preparation method of an agricultural multifunctional crystal PO light conversion greenhouse film comprises the following steps:
weighing 28 parts of powdered 7042 type linear low-density polyethylene, 25 parts of 2420K type low-density polyethylene, 25 parts of 2010MA type metallocene linear polyethylene, 0.8 part of 944 type efficient light stabilizer, 0.15 part of B225 type composite antioxidant and 0.24 part of UV326 type ultraviolet absorbent according to the formula of the pesticide-resistant and aging-resistant master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 200 ℃, and manufacturing the pesticide-resistant and aging-resistant master batch;
weighing 28 parts of powdered 7042 type linear low-density polyethylene, 28 parts of 2426H type low-density polyethylene, 20 parts of 2010MA type metallocene linear polyethylene, 0.24 part of B225 type composite antioxidant, 8 parts of light conversion auxiliary agent and 0.5 part of hydrotalcite heat insulating agent according to the formula of the light conversion heat insulating master batch, adding the materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 200 ℃, and manufacturing the light conversion heat insulating master batch;
weighing 28 parts of powdered 7042 type linear low-density polyethylene, 28 parts of 2426H type low-density polyethylene, 20 parts of 2010MA type metallocene linear polyethylene, 0.25 part of B225 type composite antioxidant and 0.4 part of hydrotalcite heat-insulating agent according to the formula of the heat-insulating master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 200 ℃, and manufacturing the light-emitting heat-insulating master batch;
weighing 20 parts of cationic surfactant cetyl methyl ammonium bromide, 20 parts of dodecyl imidazoline cations, 8 parts of anionic sodium stearate, 8 parts of sodium dodecyl sulfate, 8 parts of secondary alkyl sodium sulfonate, 8 parts of sodium lauroyl sarcosinate, 23 parts of nonionic surfactant fatty acid polyoxyethylene ester, 14 parts of sucrose esters and 8 parts of calcium stearoyl lactate according to the formula of the coating and dripping defogging release layer 1, adding the materials into a coating tank with a stirrer at normal temperature, and diluting and mixing the raw materials and the purified water according to the weight ratio of 1:100 to obtain a coating liquid material of the coating and dripping defogging release layer;
step five, weighing 13 parts of 2426F type low-density polyethylene, 18 parts of 2420D type low-density polyethylene, 65 parts of 2010MA type metallocene linear polyethylene and 8 parts of pesticide-resistant and anti-aging master batch according to the formula of the corona treatment and dripping fog-dissipation adsorption layer 2, and adding the weighed materials into a first hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step six, weighing 2420 parts of D-type low-density polyethylene 20, 2426 parts of F-type low-density polyethylene 12, 2010 MA-type metallocene linear polyethylene 65 and 6201FL elastomer 8 parts of the pesticide-resistant and aging-resistant master batch prepared in the step one according to the formula of the elastomer tensile layer 3, and adding the weighed materials into a second hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
seventhly, weighing 2426F type low-density polyethylene 30 parts, V4110F type vinyl acetate (EVA) 55 parts, 2426K type low-density polyethylene 15 parts, pesticide-resistant and aging-resistant master batch prepared in the first step, light conversion master batch prepared in the second step and heat insulation master batch 4 parts according to the formula of the light conversion heat insulation layer 4, and adding the master batches into a third hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step eight, weighing 2426F type low-density polyethylene 25 parts, V4110F type vinyl acetate (EVA) 25 parts, 2010MA type metallocene linear polyethylene 35 parts, heat-preservation master batch 4 parts and the pesticide-resistant and aging-resistant master batch 8 parts according to the formula of the heat-preservation composite layer 5, and adding the weighed materials into a fourth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step nine, weighing 2426F type low-density polyethylene 15 parts, 2420D type low-density polyethylene 20 parts, 2010MA type metallocene linear polyethylene 68 parts and the pesticide-resistant and aging-resistant master batch 8 parts according to the formula of the anti-aging protective layer 6, and adding the weighed materials into a fifth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
and step ten, controlling the temperature of the five-layer co-extrusion film blowing machine to rise to 200 ℃, starting the five-layer co-extrusion film blowing machine, compounding by using a die head, blowing, stretching, cooling and shaping, coating, drying and rolling, starting a corona treatment device after the width and the thickness of the film are stabilized to be normal, and printing, slitting, rolling and inspecting to prepare the agricultural crystal PO light conversion greenhouse film.
Through inspection, the longitudinal tensile strength/transverse tensile strength of the agricultural crystal PO light conversion greenhouse film prepared by the method is 21.5MPa, the elongation at break is 418%, the right-angle tearing load is 81.5kN/m, the light transmittance is 90%, the haze is 20%, the dripping failure time is 12.5d, the dripping initial dripping time is 395s, the dripping fog dissipation duration and the service life are synchronous and reach more than two years, and the physical and mechanical properties exceed the indexes of agricultural ethylene-vinyl acetate copolymer (EVA) blow-molded greenhouse film in the national standard GB/T20202-2006.
The invention adopts the technology of five-layer blow molding and external coating of the protective layer, and the prepared product has excellent transparency, super-strong continuous fog and dripping elimination capability, enhanced heat preservation performance, long service life, static resistance, no dust adhesion and obvious heat preservation effect.
Claims (10)
1. An agricultural multifunctional crystal PO light-conversion greenhouse film is characterized in that: the thickness of the anti-aging plastic film is 0.056-0.16mm, and the anti-aging plastic film sequentially comprises a coating and dripping fog-dispersing release layer (1), a corona treatment and dripping fog-dispersing adsorption layer (2), an elastomer tensile layer (3), a light-conversion heat-insulation layer (4), a heat-insulation composite layer (5) and an anti-aging protective layer (6) from inside to outside according to the field covering sequence of the greenhouse film, wherein the thickness of the coating and dripping fog-dispersing release layer (1) is 10-30 mu m, the thickness of the corona treatment and dripping fog-dispersing adsorption layer (2) is 10-30 mu m, the thickness of the elastomer tensile layer (3) is 8-20 mu m, the thickness of the heat-insulation composite layer (4) is 10-30 mu m, the thickness of the light-conversion heat-insulation layer (5) is 10-30 mu m, and the thickness of the anti-aging protective layer (6) is.
2. The agricultural multifunctional crystal PO light conversion greenhouse film as claimed in claim 1, wherein: the coating and dripping fog dispersal release layer (1) is prepared from the following raw materials in parts by weight: 15-25 parts of cationic surfactant cetyl methyl ammonium bromide, 15-25 parts of dodecyl imidazoline cation, 5-10 parts of anionic sodium stearate, 5-10 parts of sodium dodecyl sulfate, 5-10 parts of secondary alkyl sodium sulfonate, 5-10 parts of sodium lauroyl sarcosinate, 20-25 parts of nonionic surfactant polyoxyethylene fatty acid ester, 10-15 parts of sucrose esters and 5-10 parts of calcium stearoyl lactylate.
3. The agricultural multifunctional crystal PO light conversion greenhouse film as claimed in claim 2, wherein: the corona and dripping fog dispersal adsorption layer (2) is prepared from the following raw materials in parts by weight: 10-20 parts of 2426F type low-density polyethylene, 15-25 parts of 2420D type low-density polyethylene, 60-75 parts of 2010MA type metallocene linear polyethylene and 5-10 parts of pesticide-resistant and anti-aging master batch.
4. The agricultural multifunctional crystal PO light conversion greenhouse film as claimed in claim 3, wherein: the elastomer tensile layer (3) is prepared from the following raw materials in parts by weight: 2420 parts of D-type low-density polyethylene 15-25 parts, 2426F-type low-density polyethylene 10-20 parts, 2010 MA-type metallocene linear polyethylene 60-75 parts, 6201FL elastomer 5-10 parts and pesticide-resistant and anti-aging master batch 5-10 parts.
5. The agricultural multifunctional crystal PO light conversion greenhouse film as claimed in claim 4, wherein: the light conversion heat insulation layer (4) is prepared from the following raw materials in parts by weight: 25-35 parts of 2426F type low-density polyethylene, 50-60 parts of V4110F type vinyl acetate (EVA), 10-20 parts of 2426K type low-density polyethylene, 5-10 parts of pesticide aging resistant master batch, 3-5 parts of light conversion master batch and 3-5 parts of heat insulation master batch.
6. The agricultural multifunctional crystal PO light conversion greenhouse film according to claim 5, wherein: the heat-insulation composite layer (5) is prepared from the following raw materials in parts by weight: 2426F type low-density polyethylene 20-30 parts, V4110F type vinyl acetate (EVA) 20-30 parts, 2010MA type metallocene linear polyethylene 30-40 parts, heat preservation master batch 3-5 parts, and pesticide-resistant and anti-aging master batch 5-10 parts.
7. The agricultural multifunctional crystal PO light conversion greenhouse film as claimed in claim 6, wherein: the anti-aging protective layer (6) is prepared from the following raw materials in parts by weight: 10-20 parts of 2426F type low-density polyethylene, 15-25 parts of 2420D type low-density polyethylene, 60-75 parts of 2010MA type metallocene linear polyethylene and 5-10 parts of pesticide-resistant and anti-aging master batch.
8. The agricultural multifunctional crystal PO light conversion greenhouse film according to claim 7, wherein: the pesticide-resistant and anti-aging master batch is prepared from the following raw materials in parts by weight: 25-30 parts of powdered 7042 type linear low-density polyethylene, 20-30 parts of 2420K type low-density polyethylene, 20-30 parts of 2010MA type metallocene linear polyethylene, 0.5-1.0 part of 944 type high-efficiency light stabilizer, 0.1-0.2 part of B225 type composite antioxidant and 0.15-0.3 part of UV326 type ultraviolet absorbent.
9. The agricultural multifunctional crystal PO light conversion greenhouse film according to claim 8, wherein: the light conversion master batch is prepared from the following raw materials in parts by weight: 25-30 parts of powdery 7042 type linear low-density polyethylene, 25-30 parts of 2426H type low-density polyethylene, 15-25 parts of 2010MA type metallocene linear polyethylene, 0.15-0.3 part of B225 type composite antioxidant, 7.5-10 parts of light conversion auxiliary agent and 0.2-0.6 part of hydrotalcite heat insulating agent; the heat-insulating master batch is prepared from the following raw materials in parts by weight: 25-30 parts of powdered 7042 type linear low-density polyethylene, 25-30 parts of 2426H type low-density polyethylene, 15-25 parts of 2010MA type metallocene linear polyethylene, 0.15-0.3 part of B225 type composite antioxidant and 0.2-0.6 part of hydrotalcite heat insulating agent.
10. The preparation method of the agricultural multifunctional crystal PO light conversion greenhouse film as claimed in claim 9, wherein the preparation method comprises the following steps: it comprises the following steps:
step one, weighing 25-30 parts of powdered 7042 type linear low-density polyethylene, 20-30 parts of 2420K type low-density polyethylene, 20-30 parts of 2010MA type metallocene linear polyethylene, 0.5-1.0 part of 944 type high-efficiency light stabilizer, 0.1-0.2 part of B225 type composite antioxidant and 0.15-0.3 part of UV326 type ultraviolet absorbent according to the formula of the pesticide-resistant and aging-resistant master batch, adding the materials into a double-screw plastic extruder, and manufacturing the pesticide-resistant and aging-resistant master batch when the temperature of the double-screw plastic extruder is 160-220 ℃;
step two, weighing 25-30 parts of 7042 type linear low-density polyethylene powder, 25-30 parts of 2426H type low-density polyethylene powder, 15-25 parts of 2010MA type metallocene linear polyethylene powder, 0.15-0.3 part of B225 type composite antioxidant, 7.5-10 parts of light conversion auxiliary agent and 0.2-0.6 part of hydrotalcite heat insulating agent according to the formula of the light conversion heat insulating master batch, adding the materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160-220 ℃, and manufacturing the light conversion heat insulating master batch;
step three, weighing 25-30 parts of 7042 type linear low-density polyethylene powder, 25-30 parts of 2426H type low-density polyethylene powder, 15-25 parts of 2010MA type metallocene linear polyethylene powder, 0.15-0.3 part of B225 type composite antioxidant and 0.2-0.6 part of hydrotalcite heat insulating agent according to the formula of the heat insulating master batch, adding the weighed materials into a double-screw plastic extruder, wherein the temperature of the double-screw plastic extruder is 160-;
weighing 15-25 parts of cationic surfactant cetyl methyl ammonium bromide, 15-25 parts of dodecyl imidazoline cations, 5-10 parts of anionic sodium stearate, 5-10 parts of sodium dodecyl sulfate, 5-10 parts of secondary alkyl sodium sulfonate, 5-10 parts of sodium lauroyl sarcosinate, 20-25 parts of nonionic surfactant polyoxyethylene fatty acid ester, 10-15 parts of sucrose esters and 5-10 parts of calcium stearoyl lactylate according to the formula of the coating and dripping defogging release layer (1), adding the materials into a coating tank with a stirrer at normal temperature, and diluting and mixing the raw materials and the purified water according to the weight ratio of 1:100 to obtain a coating liquid material of the coating and dripping defogging release layer;
step five, weighing 2426F type low-density polyethylene 10-20 parts, 2420D type low-density polyethylene 15-25 parts, 2010MA type metallocene linear polyethylene 60-75 parts and pesticide-resistant and aging-resistant master batch 5-10 parts according to the formula of the corona treatment and the dripping fog-dissipation adsorption layer (2), and adding the materials into a first hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step six, weighing 2420 parts of D-type low-density polyethylene 15-25 parts, 2426 parts of F-type low-density polyethylene 10-20 parts, 2010 MA-type metallocene linear polyethylene 60-75 parts, 6201FL elastomer 5-10 parts and the pesticide-resistant and aging-resistant master batch prepared in the step one according to the formula of the elastomer tensile layer (3), and adding the master batch into a second hopper of a five-layer co-extrusion film blowing machine for uniformly mixing;
seventhly, weighing 2426F type low-density polyethylene 25-35 parts, V4110F type vinyl acetate (EVA) 50-60 parts, 2426K type low-density polyethylene 10-20 parts, pesticide-resistant and aging-resistant master batch prepared in the first step, light conversion master batch prepared in the second step and heat insulation master batch 3-5 parts according to the formula of the light conversion heat insulation layer (4), and adding the master batches into a third hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
eighthly, according to the formula of the heat-insulation composite layer (5), weighing 2426 parts of F-type low-density polyethylene 20-30 parts, V4110F-type vinyl acetate (EVA) 20-30 parts, 2010 MA-type metallocene linear polyethylene 30-40 parts, 3-5 parts of the heat-insulation master batch prepared in the third step and 5-10 parts of the pesticide-resistant and aging-resistant master batch prepared in the first step, and adding the materials into a fourth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
step nine, weighing 2426F type low-density polyethylene 10-20 parts, 2420D type low-density polyethylene 15-25 parts, 2010MA type metallocene linear polyethylene 60-75 parts and the pesticide-resistant and aging-resistant master batch 5-10 parts according to the formula of the anti-aging protective layer (6), and adding the materials into a fifth hopper of a five-layer co-extrusion film blowing machine for uniform mixing;
and step ten, controlling the temperature of the five-layer co-extrusion film blowing machine to rise to 160-wall 220 ℃, starting the five-layer co-extrusion film blowing machine, compounding by a die head, blowing, stretching, cooling and shaping, coating, drying and rolling, starting a corona treatment device after the width and the thickness of the film pipe stable film sheet reach normal, and printing, cutting, rolling and inspecting to prepare the agricultural crystal PO light conversion greenhouse film.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114246359A (en) * | 2021-12-07 | 2022-03-29 | 四川省烟草公司达州市公司 | Method for storing cigar tobacco leaves in mould-proof manner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103125308A (en) * | 2013-03-19 | 2013-06-05 | 山东农业大学 | Agricultural greenhouse film for strengthening light conversion effects |
| JP3202173U (en) * | 2015-09-04 | 2016-01-21 | 宇鈞先端材料股▲フン▼有限公司Ｕ‐ＧＩＮ Ａｄｖａｎｃｅｄ Ｍａｔｅｒｉａｌ Ｃｏ．， Ｌｔｄ． | Anti-fogging film structure |
| CA2962831A1 (en) * | 2014-10-23 | 2016-04-28 | Akzo Nobel Chemicals International B.V. | Polyolefin-containing composition with anti-fog properties |
| CN109258222A (en) * | 2018-11-10 | 2019-01-25 | 盘锦益丰农业科技发展有限公司 | Vinyl-vinyl acetate copolymer EVA blowing moulding greenhouse film and preparation method thereof |
| CN109263216A (en) * | 2018-08-27 | 2019-01-25 | 上海骊塑商贸有限公司 | A kind of scattering energy saving film that self-adaptive temperature is adjusted |
| CN110712410A (en) * | 2019-10-21 | 2020-01-21 | 华盾雪花塑料（固安）有限责任公司 | Internal-addition type long-acting dripping defogging film |
| CN110946025A (en) * | 2019-11-14 | 2020-04-03 | 徐蕾 | Infrared absorption heat insulation film and preparation method thereof |
-
2020
- 2020-07-17 CN CN202010691780.4A patent/CN111823532A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103125308A (en) * | 2013-03-19 | 2013-06-05 | 山东农业大学 | Agricultural greenhouse film for strengthening light conversion effects |
| CA2962831A1 (en) * | 2014-10-23 | 2016-04-28 | Akzo Nobel Chemicals International B.V. | Polyolefin-containing composition with anti-fog properties |
| JP3202173U (en) * | 2015-09-04 | 2016-01-21 | 宇鈞先端材料股▲フン▼有限公司Ｕ‐ＧＩＮ Ａｄｖａｎｃｅｄ Ｍａｔｅｒｉａｌ Ｃｏ．， Ｌｔｄ． | Anti-fogging film structure |
| CN109263216A (en) * | 2018-08-27 | 2019-01-25 | 上海骊塑商贸有限公司 | A kind of scattering energy saving film that self-adaptive temperature is adjusted |
| CN109258222A (en) * | 2018-11-10 | 2019-01-25 | 盘锦益丰农业科技发展有限公司 | Vinyl-vinyl acetate copolymer EVA blowing moulding greenhouse film and preparation method thereof |
| CN110712410A (en) * | 2019-10-21 | 2020-01-21 | 华盾雪花塑料（固安）有限责任公司 | Internal-addition type long-acting dripping defogging film |
| CN110946025A (en) * | 2019-11-14 | 2020-04-03 | 徐蕾 | Infrared absorption heat insulation film and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114246359A (en) * | 2021-12-07 | 2022-03-29 | 四川省烟草公司达州市公司 | Method for storing cigar tobacco leaves in mould-proof manner |
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Application publication date: 20201027 |