Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J3/00—Processes of treating or compounding macromolecular substances
  • C08J3/20—Compounding polymers with additives, e.g. colouring
  • C08J3/203—Solid polymers with solid and/or liquid additives
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
  • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
  • A01G9/14—Greenhouses
  • A01G9/1407—Greenhouses of flexible synthetic material
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/18—Manufacture of films or sheets
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K9/00—Use of pretreated ingredients
  • C08K9/02—Ingredients treated with inorganic substances
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L23/04—Homopolymers or copolymers of ethene
  • C08L23/08—Copolymers of ethene
  • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
  • C08L23/0853—Ethylene vinyl acetate copolymers
• • 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
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
  • C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J2327/00—Characterised by the use 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; Derivatives of such polymers
  • C08J2327/02—Characterised by the use 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; Derivatives of such polymers not modified by chemical after-treatment
  • C08J2327/04—Characterised by the use 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; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
  • C08J2327/06—Homopolymers or copolymers of vinyl chloride
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K3/00—Use of inorganic substances as compounding ingredients
  • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
  • C08K3/20—Oxides; Hydroxides
  • C08K3/22—Oxides; Hydroxides of metals
  • C08K2003/2231—Oxides; Hydroxides of metals of tin
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2205/00—Polymer mixtures characterised by other features
  • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

• the present invention relates to a method for producing a thermal barrier film comprising a polyvinyl chloride resin composition. More specifically, the present invention consists of a polyvinyl chloride resin composition, and in the daytime, it effectively exhibits the heat shielding property by efficiently shielding near infrared rays from sunlight, and has a high visible light transmittance.
• Method for producing a thermal barrier film that can suppress temperature rise in agricultural and horticultural facilities such as agricultural and horticultural houses, has a low heat transmissivity at night, and can suppress heat dissipation from the agricultural and horticultural facilities About.
• agricultural and horticultural facilities such as agricultural and horticultural houses that use resin films such as polyvinyl chloride resin films, polyethylene resin films, and fluorine-containing polymer resin films as roofing materials and wall materials have been used for the cultivation of agricultural and horticultural crops.
• resin films such as polyvinyl chloride resin films, polyethylene resin films, and fluorine-containing polymer resin films as roofing materials and wall materials have been used for the cultivation of agricultural and horticultural crops.
• These agricultural and horticultural facilities are used for the purpose of heat insulation, windproof, rainproof and snowproof in winter and for the purpose of windproof, rainproof, insectproof and insect pollination in summer.
• the resin film described above is used as a roofing material or wall material.
• Patent Document 1 discloses a heat insulating material for agricultural and horticultural facilities provided with a heat insulating layer made of a resin base material in which a heat insulating filler selected from lanthanum hexaboride and antimony-added tin oxide is dispersed.
• Patent Document 1 describes a method for producing a heat insulating material including mixing a heat insulating filler and a resin material at the same time.
• the heat shielding material is not sufficiently dispersed.
• Patent Documents 2 and 3 disclose a resin film including a thermoplastic resin film containing titanium oxide.
• the techniques of Patent Documents 2 and 3 have a low near-infrared shielding rate and insufficient heat shielding properties.
• An object of the present invention is to provide a novel method for producing a heat shielding film in which a heat shielding material is well dispersed in a polyvinyl chloride resin.
• a method for producing a thermal barrier film (1) A step of mixing the polyvinyl chloride resin composition (P) containing the polyvinyl chloride resin (A) with a blender, and (2) at least antimony in the mixture obtained in the step (1).
• the amount of the heat shielding material containing the doped tin oxide fine particles (B) is such that the mass ratio of the polyvinyl chloride resin (A): antimony-doped tin oxide fine particles (B) is 100 parts by mass: 1.5 to 15 parts by mass.
• a step of further mixing is such that the mass ratio of the polyvinyl chloride resin (A): antimony-doped tin oxide fine particles (B) is 100 parts by mass: 1.5 to 15 parts by mass.
• the heat shielding material including at least the antimony-doped tin oxide fine particles (B).
• the heat shielding material may be composed of only antimony-doped tin oxide fine particles (B). In that case, it is preferable to mix all the components other than the antimony-doped tin oxide fine particles (B) in the step (1).
• the heat shielding film obtained by the production method of the present invention is suitable as a material such as a roofing material or a wall material of an agricultural or horticultural facility such as an agricultural or horticultural house.
• the method for producing the thermal barrier film of the present invention is as follows. (1) a step of mixing the polyvinyl chloride resin composition (P) containing the polyvinyl chloride resin (A) with a blender; and (2) at least the mixture obtained in the step (1)
• the heat shielding material containing the antimony-doped tin oxide fine particles (B) has a mass ratio of the above polyvinyl chloride resin (A): antimony-doped tin oxide fine particles (B) of 100 parts by mass: 1.5 to 15 parts by mass. Adding in quantity and further mixing.
• the manufacture of a thermal barrier film made of a polyvinyl chloride resin composition is as follows: Using a blender, mix all ingredients at the same time, The resulting mixture is melt-kneaded using a kneader, Usually, the obtained kneaded material is formed into a film using a film forming machine.
• This method is also disclosed in Patent Document 1 described above.
• all the materials other than a heat-shielding material (which may be only antimony-doped tin oxide fine particles (B)) containing at least antimony-doped tin oxide fine particles (B).
• the ingredients are first mixed using a blender, Thereafter, a heat shielding material containing at least antimony-doped tin oxide fine particles (B) is added and further mixed.
• a heat shielding material containing at least antimony-doped tin oxide fine particles (B) is added and further mixed.
• the step (1) can be performed using any blender.
• the “blender” here is not particularly limited as long as it has a function of mixing a plurality of kinds of solid and / or liquid components (the same applies to the following step (2)).
• Examples of the blender include a ribbon blender, a V-type rotary blender, a W-type rotary blender, a pan-type blender, and a Henschel mixer (trade name). These may be used in any combination.
• the polyvinyl chloride-based resin (A) receives an optional component such as an ultraviolet absorber (C) as a matrix resin and a heat shielding material containing antimony-doped tin oxide fine particles (B) added in the step (2). It acts to impart mechanical properties such as tensile strength and flexibility to the heat shield film.
• an optional component such as an ultraviolet absorber (C) as a matrix resin and a heat shielding material containing antimony-doped tin oxide fine particles (B) added in the step (2). It acts to impart mechanical properties such as tensile strength and flexibility to the heat shield film.
• polyvinyl chloride resin (A) used in the present invention examples include polyvinyl chloride; vinyl chloride / vinyl acetate copolymer, vinyl chloride / (meth) acrylic acid copolymer, vinyl chloride / (meth).
• the polyvinyl chloride resin (A) may further contain other resins usually used in the polyvinyl chloride resin composition.
• the other resin include ethylene / vinyl acetate copolymer, ethylene / (meth) acrylic acid copolymer, ethylene / (meth) methyl acrylate copolymer, ethylene / (meth) ethyl acrylate copolymer.
• the proportion of polyvinyl chloride and / or the copolymer of vinyl chloride and other monomers copolymerizable with vinyl chloride in the polyvinyl chloride resin (A) is not particularly limited, but is generally a majority (50 mass). %) To 100% by mass, preferably 60 to 100% by mass, more preferably 70 to 100% by mass, and most preferably 75 to 95% by mass.
• Particularly preferred polyvinyl chloride resin (A) is 75-95% by mass of polyvinyl chloride (A-1), 1-10% by mass of ethylene / vinyl acetate copolymer (A-2), 4-15% by mass of core-shell rubber (A-3), Where the sum of (A-1), (A-2) and (A-3) is 100% by mass.
• This mixture has a small amount of plasticizer or sufficient flexibility without using a plasticizer, and improves the defective phenomenon due to plasticizer bleed-out.
• the said mixture is excellent in cold resistance (impact resistance in low temperature). Further, the mixture has a small change in hardness in the actual use temperature range assumed as an agricultural material.
• the polyvinyl chloride resin composition (P) can further contain a plasticizer that is usually used in the polyvinyl chloride resin composition.
• a plasticizer for example, Phthalate plasticizers such as di-2-ethylhexyl phthalate, dibutyl phthalate, butyl hexyl phthalate, diheptyl phthalate, dioctyl phthalate, diisononyl phthalate, diisodecyl phthalate, dilauryl phthalate, dicyclohexyl phthalate, dioctyl terephthalate; Adipate plasticizers such as dioctyl adipate, diisononyl adipate, diisodecyl adipate, di (butyldiglycol) adipate; Phosphate plasticizer systems such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, tri
• the polyvinyl chloride resin composition (P) may further contain other additives usually used in polyvinyl chloride resin compositions as long as they do not contradict the purpose of the present invention.
• the additive is not particularly limited, but for example, Chlorine scavengers such as hydrotalcite compounds, zeolite compounds, metal soaps; Phosphorous, phenolic and sulfur antioxidants; Light stabilizers such as hindered amines; Epoxy compounds such as epoxidized soybean oil; UV absorbers such as benzotriazole and benzophenone; ⁇ -diketone compounds; perchlorates; polyhydric alcohols; pigments; lubricants; cross-linking agents; antistatic agents; antifogging agents; plate-out preventing agents; surface treatment agents; Metal deactivator; mold release agent; processing aid and the like.
• the polyvinyl chloride resin composition (P) contains an ultraviolet absorber (C) (for example, benzotriazole or benzophenone),
• the mass ratio of polyvinyl chloride resin (A): UV absorber (C) is preferably 100 parts by mass: 0.01 to 10 parts by mass, and 100 parts by mass: 0.05 to 5 parts by mass. It is more preferable that it is contained in an amount of 100 parts by mass: most preferably 0.1 to 3 parts by mass.
• the above-mentioned polyvinyl chloride resin composition (P) can further contain a filler usually used in the polyvinyl chloride resin composition as long as the object of the present invention is not adversely affected.
• a filler usually used in the polyvinyl chloride resin composition as long as the object of the present invention is not adversely affected.
• the filler include light calcium carbonate, heavy calcium carbonate, hydrous magnesium silicate, and talc.
• the proportion of the polyvinyl chloride resin (A) in the polyvinyl chloride resin composition (P) is not particularly limited, but is generally the majority (50 mass%) to 100 mass%, preferably 60 to 100 mass%. % By mass.
• the conditions for mixing using the blender in the step (1) are not particularly limited, but the general dry blending conditions, that is, the solid component contained in the polyvinyl chloride resin composition (P) under atmospheric pressure,
• the temperature is preferably low enough not to melt or soften.
• the liquid component contained in the polyvinyl chloride resin composition (P) has a temperature high enough to be absorbed quickly by the polyvinyl chloride resin (A) (for example, high enough to make people feel warm). It is preferable to carry out at a temperature (typically about 20 to 40 ° C.).
• the mixing in this step (1) is performed for a time sufficient for each component constituting the polyvinyl chloride resin composition (P) including the polyvinyl chloride resin (A) to be uniformly dispersed. You can go.
• a heat shielding material containing at least the antimony-doped tin oxide fine particles (B) is added to the mixture obtained in the step (1), and the polyvinyl chloride resin (A): antimony-doped tin oxide fine particles.
• a more preferable mass ratio of the polyvinyl chloride resin (A) to the antimony-doped tin oxide fine particles (B) in this step is 100 parts by mass: 2 to 10 parts by mass from the viewpoint of balance of desired properties.
• heat shielding material means a material that efficiently absorbs and absorbs near-infrared rays of sunlight and has a function of low absorption of visible light (high transmittance), and at least antimony Doped tin oxide fine particles (B) are included.
• the antimony-doped tin oxide fine particles (B) are particularly excellent in these functions, and further have a function of lowering the thermal recirculation rate of the thermal barrier film and suppressing heat dissipation.
• the heat-shielding film obtained by the present invention exhibits heat-shielding properties by efficiently shielding near infrared rays, and has low visible light absorbability (high transmittance).
• the heat-insulating film obtained by the present invention since the heat-insulating film obtained by the present invention has a low heat transmissivity, it is excellent in heat retention.
• the heat shielding material may be composed of only the antimony-doped tin oxide fine particles (B), or may contain fine particles of other known heat shielding compounds.
• the antimony-doped tin oxide fine particles (B) are generally also referred to as ATO, and are fine particles obtained by substituting a part of Sn 4+ in a tin oxide crystal with Sb 5+ . That is, the antimony-doped tin oxide fine particles (B) are tin oxide fine particles containing a small amount of antimony oxide.
• the antimony-doped tin oxide fine particles (B) typically have a large transmittance in the visible region near a wavelength of 380 nm to 780 nm and an absorptivity in the near infrared region of a wavelength of 900 nm or more.
• Examples of other known heat shielding compounds include lanthanum hexaboride, titanium oxide, and the like.
• the proportion of the antimony-doped tin oxide fine particles (B) in the heat-shielding material is generally the majority (50 mass%) to 100 mass% from the viewpoint of effective expression of the above functions, and typically 60 To 100% by mass, preferably 70 to 100% by mass, more preferably 80 to 100% by mass, still more preferably 90 to 100% by mass, and particularly preferably 95 to 100% by mass, Most preferably, it is 100 mass%.
• the particle diameter of the antimony-doped tin oxide fine particles (B) is so fine that appearance defects such as foreign matters do not occur on the heat shielding film.
• the antimony-doped tin oxide fine particles (B) those having an average primary particle diameter of 2 ⁇ m or less are usually used.
• the average primary particle diameter is more preferably 1 ⁇ m or less.
• the lower limit of the particle diameter is not particularly limited, but normally available is about 1 nm.
• antimony-doped tin oxide fine particles (B) having an average primary particle diameter of 200 nm or more, preferably an average primary particle diameter of 300 nm or more.
• Antimony-doped tin oxide fine particles (B) having a particle size of 200 nm or less, preferably an average primary particle size of 100 nm or less may be used.
• the “average primary particle size” used herein is a cumulative particle size distribution curve measured using a laser diffraction / scattering type particle size analyzer MT3200II (trade name) manufactured by Nikkiso Co., Ltd. % Of the particle size.
• the amount of the antimony-doped tin oxide fine particles (B) is 1.5 to 15 parts by mass, more preferably 2 to 10 parts by mass with respect to 100 parts by mass of the polyvinyl chloride resin (A).
• the amount of the antimony-doped tin oxide fine particles (B) is 1.5 parts by mass or more, the near-infrared absorption function and the function of suppressing heat dissipation of the obtained film are sufficiently expressed.
• This lower limit is more preferably 2 parts by mass or more, and still more preferably 4 parts by mass or more.
• the antimony-doped tin oxide fine particles (B) in an amount up to 15 parts by mass, the effect of improving the near infrared absorption function and the function of suppressing heat dissipation can be obtained to the maximum.
• 10 parts by mass or less is sufficient for practical use, and may be 8 parts by mass or less.
• the whole amount may be added at once, or may be added in a plurality of times.
• the mixing in the step (2) can be performed using any blender.
• the same blender as that used in the step (1) may be used, or a blender different from the step (1) may be used.
• the blender include a ribbon blender, a V-type rotary blender, a W-type rotary blender, a pan-type blender, and a Henschel mixer (trade name). These blenders may be used in any combination.
• the conditions for mixing using the blender in the step (2) are not particularly limited, but the general dry blending conditions, that is, the mixture obtained in the step (1) and at least antimony-doped tin oxide fine particles under atmospheric pressure. It is preferable that the temperature is so low that the solid component contained in the heat-shielding material containing (B) does not melt or soften. Further, the mixing in this step (2) is a time sufficient for the heat shielding material containing at least the components constituting the mixture obtained in step (1) and at least the antimony-doped tin oxide fine particles (B) to be uniformly dispersed. You can go over to.
• the mixture obtained in step (2) can preferably be subjected to a melt-kneading step.
• the method for melt-kneading the mixture obtained in step (2) is not particularly limited, and can be carried out using any known melt-kneader and conditions.
• the melt kneader include batch kneaders such as a pressure kneader and a mixer, extrusion kneaders such as a co-rotating twin screw extruder and a different direction rotating twin screw extruder, and a calender roll kneader. These melt kneaders may be used in any combination.
• Step (3) of the present invention is a step of forming a film of the mixture obtained in the above step (2) (preferably a mixture further subjected to the melt-kneading step) using a calendering machine.
• This film forming process may be a method using an extruder and a T die, but since the polyvinyl chloride resin composition is likely to be burned, it is generally formed using a calendering machine.
• any known calendaring machine can be used.
• an upright type 3 roll, an upright type 4 roll, an L type 4 roll, a reverse L type 4 roll, a Z type roll, etc. can be mentioned.
• an arbitrary well-known thing can be used for an extruder, for example, a single screw extruder, a same direction rotation twin screw extruder, a different direction rotation twin screw extruder etc. can be mentioned.
• Arbitrary well-known things can be used for T die, for example, a manifold die, a fish tail die, a coat hanger die, etc. can be mentioned.
• the thickness of the heat-shielding film thus obtained is not particularly limited, but may be, for example, about 5 to 1000 ⁇ m, typically 10 to 500 ⁇ m, and more generally 20 to 400 ⁇ m.
• the obtained thermal barrier film preferably has a visible light transmittance of 40% or more, more preferably 55% or more at a wavelength of 380 to 780 nm.
• this thermal barrier film preferably has an infrared absorptivity at a wavelength of 900 to 2500 nm of 30% or more, more preferably 55% or more.
• visible light transmittance is the ratio of the integral area of the transmission spectrum at a wavelength of 380 to 780 nm to the integral area of the transmission spectrum when it is assumed that the transmittance in the entire wavelength range of 380 to 780 nm is 100%. It is.
• the “infrared absorptance” here is the integral area of the absorption spectrum when it is assumed that the integral area of the absorption spectrum at a wavelength of 900 to 2500 nm is 100% in the entire range of the wavelength of 900 to 2500 nm. It is a ratio to.
• the thermal barrier film can be suitably used as a material for agricultural and horticultural facilities, particularly as a thermal barrier curtain.
• the heat shield curtain include a single film of the heat shield film, a knitted fabric of the heat shield film made into a strip shape and other materials made into a strip shape.
• other materials are not particularly limited, but are single or multiple types of resin film, typically a polyethylene film (transparent film, or optionally colored with a metal oxide pigment) Film).
• the size of the thermostatic chamber is such that the internal dimensions are 1000 mm long ⁇ 800 mm wide ⁇ 1000 mm high.
• the heater inside the reflux box was operated with an output of 10 W.
• the heat reflux rate K (unit: kcal / ° C. ⁇ m 2 ⁇ h) was calculated by the following equation. The time required to reach the equilibrium state was about 1 hour from the start of the heater operation.
• the heater output was strengthened and it measured again on the conditions over 10 degreeC.
• D Other optional ingredients (D-1) Barium / zinc composite stabilizer from ADEKA Corporation (D-2) Epoxidized soybean oil from ADEKA Corporation "Adekasizer O-130P (trade name)"
• Example 1 The components (A-1), (A-2), (A-3), (C), (D-1), and (D-2) are blended in amounts shown in Table 1 ((A-1) to ( A-3) parts by mass with respect to 100 parts by mass in total of the components) were mixed using a ribbon blender for 5 minutes under general dry blending conditions so as to obtain sufficient uniformity. Next, the component (B) was added in the blending amount (parts by mass) shown in Table 1, and further mixed for 5 minutes so that the component (B) was uniformly dispersed.
• Table 1 ((A-1) to ( A-3) parts by mass with respect to 100 parts by mass in total of the components) were mixed using a ribbon blender for 5 minutes under general dry blending conditions so as to obtain sufficient uniformity.
• the component (B) was added in the blending amount (parts by mass) shown in Table 1, and further mixed for 5 minutes so that the component (B) was uniformly dispersed.
• the obtained mixture was melt-kneaded using a calender kneader, and the kneaded material was sent to an inverted L-shaped four-calendar in a molten state to obtain a film having a thickness of 100 ⁇ m.
• Table 1 shows the measurement results of various physical properties of this film.
• Comparative Example 1 All the components were simultaneously charged into the ribbon blender in the blending amounts (parts by mass) shown in Table 1 and mixed in for 10 minutes. Table 1 shows the measurement results of various physical properties of this film.
• Examples 2-5 A film having a thickness of 100 ⁇ m was obtained in the same manner as in Example 1 except that the amount of each component was changed as shown in Table 1. The measurement results of various physical properties of these films are shown in Table 1.
• Comparative Example 2 Implemented except that the amount of component (B) (antimony-doped tin oxide fine particles) was changed to 0.5 parts by mass with respect to 100 parts by mass in total of components (A-1) to (A-3) In the same manner as in Example 1, a film having a thickness of 100 ⁇ m was obtained. Table 1 shows the measurement results of various physical properties of this film.
• Example 6 The film of Example 1 cut to a width of 4 mm, Transparent polyethylene film cut to a width of 4 mm (thickness 50 ⁇ m, visible light transmittance 90%), A white polyethylene film colored with a titanium oxide pigment cut to a width of 4 mm (thickness 50 ⁇ m, visible light transmittance 30%) was repeatedly arranged in this order, and knitted with polyester spun yarn using a Russell knitting machine to obtain a processed film. . According to the above (ii), the heat reflux rate was measured and found to be 6.3 kcal / ° C. ⁇ m 2 ⁇ h.
• Comparative Example 3 The transparent polyethylene film (thickness 50 ⁇ m, visible light transmittance 90%) cut to a width of 4 mm, The white polyethylene film (thickness 50 ⁇ m, visible light transmittance 30%) cut to a width of 4 mm was repeatedly arranged in this order and knitted with polyester spun yarn using a Russell knitting machine to obtain a processed film.
• the heat reflux rate was measured according to (ii) above and found to be 7.3 kcal / ° C. ⁇ m 2 ⁇ h.
• the heat shielding films of Examples 1 to 5 according to the method of the present invention have good appearance, and the heat reflux rate, infrared absorption rate, and visible light transmittance also show suitable values as the heat shielding film.
• the heat shielding film of Comparative Example 1 in which all the components were simultaneously charged into the ribbon blender had a poor appearance.
• the thermal barrier film of Comparative Example 2 in which the amount of antimony-doped tin oxide fine particles was reduced had a low infrared absorption rate.
• the heat-shielding film of Comparative Example 2 was inferior to the heat-shielding films of the examples also in that the heat recirculation rate was high (and therefore the heat retaining property was low).
• the heat-shielding film of the comparative example 1 was substantially equivalent to Example 1 as a heat reflux rate, infrared absorption factor, and visible light transmittance
• permeability as an average value
• those values are each physical property value for every implementation. The fluctuation of was very large. Such a large variation in the physical property value is considered to be caused by insufficient dispersion of the heat shielding material. As a result, the thermal barrier film of Comparative Example 1 is judged to be inappropriate as an industrial product because it is difficult to satisfy the product specifications for each production.
• the heat-shielding film obtained by the production method of the present invention exhibits heat-shielding properties by efficiently shielding near-infrared rays, has high visible light permeability, and is excellent in heat retention because of its low thermal transmissivity. Therefore, the said heat insulation film is suitable as materials, such as a roof material and wall material of agricultural and horticultural facilities, such as an agricultural and horticultural house.

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• 2013
  • 2013-07-12 JP JP2013146575A patent/JP5995797B2/ja active Active
• 2014
  • 2014-06-26 CN CN201480039666.6A patent/CN105377967B/zh active Active
  • 2014-06-26 WO PCT/JP2014/066967 patent/WO2015005120A1/ja not_active Ceased
  • 2014-06-26 US US14/904,624 patent/US9745426B2/en active Active

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