CN110920198A - Rare earth nanometer heat-insulating polyester film - Google Patents
Rare earth nanometer heat-insulating polyester film Download PDFInfo
- Publication number
- CN110920198A CN110920198A CN201911310258.0A CN201911310258A CN110920198A CN 110920198 A CN110920198 A CN 110920198A CN 201911310258 A CN201911310258 A CN 201911310258A CN 110920198 A CN110920198 A CN 110920198A
- Authority
- CN
- China
- Prior art keywords
- rare earth
- heat insulation
- polyester film
- nanometer heat
- earth nanometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/244—All polymers belonging to those covered by group B32B27/36
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a rare earth nanometer heat-insulating polyester film. The rare earth nanometer heat insulation polyester film has a three-layer structure comprising a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer; the rare earth nanometer heat insulation coating is formed by coating rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, curing and drying, and has the function of blocking infrared rays; the main components of the anti-ultraviolet layer are anti-ultraviolet agent and polyethylene glycol terephthalate; the main components of the base layer are nano barium sulfate, polycarbodiimide and polyethylene glycol terephthalate. The rare earth nanometer heat-insulating polyester film prepared by the invention has the functions of heat insulation and ultraviolet resistance, has high light transmittance, and can be applied to the fields of window films and the like.
Description
Technical Field
The invention belongs to the field of polyester films, and particularly relates to a rare earth nanometer heat-insulating polyester film.
Background
Polyethylene terephthalate (PET) film is widely used in the field of window films, and can be adhered to glass to endow the glass with heat insulation, energy saving and ultraviolet resistance functions. The currently applied nano materials with the infrared reflection function mainly comprise hollow glass beads, silicon dioxide, ceramic micro powder, zinc oxide, ATO (nano antimony-doped tin dioxide), ITO (indium tin oxide) and the like. The powder of nano ITO, ATO or the mixture of the nano ITO and the ATO has high required dispersion concentration, high surface modification difficulty and high settling speed due to relatively weak absorption capacity, and has unsatisfactory heat-insulating performance due to a series of reasons of inhibiting the specific photocatalytic activity of metal oxide, unobvious coating effect and the like. ATO can only block near infrared light with the wavelength of 1400-2500 nm, ITO can block near infrared light with the wavelength of 1100-2500nm, LaB6The nano particles have high absorption coefficient to near infrared light, and can block the near infrared light with higher energy and wavelength of 780-1300 nm. The lanthanum hexaboride nano particles are used as a high-transparency heat-insulation energy-saving material, have the characteristics of low visible light reflectivity, weak absorption, high transmittance, strong near-infrared sunlight absorption, low light transmittance and the like, and can be applied to the surface of a PET film to play a heat insulation role.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a rare earth nanometer heat-insulating polyester film, which has the heat-insulating effect by a method of coating a rare earth nanometer heat-insulating coating on the upper surface of an ultraviolet-resistant layer, has ultraviolet resistance by a method of adding a polymeric benzophenone ultraviolet absorbent into the ultraviolet-resistant layer, has the functions of heat insulation and ultraviolet resistance, has high light transmittance and can be applied to the field of window films.
The technical scheme adopted by the invention is as follows:
the rare earth nanometer heat insulation polyester film has a three-layer structure comprising a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer; the rare earth nanometer heat insulation coating is formed by coating rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, curing and drying; the main components of the anti-ultraviolet layer are anti-ultraviolet agent and polyethylene glycol terephthalate; the main components of the base layer are nano barium sulfate, polycarbodiimide and polyethylene glycol terephthalate.
The rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 24-26 parts of aqueous polyurethane dispersion, 24-26 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23-26 parts of water.
According to the invention, the adhesion performance between the coating liquid and the anti-ultraviolet layer is improved by adding the polyester emulsion into the coating liquid, so that the rare earth nano heat-insulating coating liquid and the surface of the anti-ultraviolet layer have high adhesion performance; and the coating liquid is coated on the surface of the ultraviolet-resistant layer in an online coating or offline coating mode, and the coating liquid has high tensile property by adding the aqueous polyurethane dispersion.
In addition, the antistatic agent is added into the coating liquid, so that the damage to the surface of the film caused by dust adsorption due to electrostatic force in the processing process can be avoided.
The rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle (LaB)6) Ethanol solution of LaB6The solid content of the nano particles is 5 percent, and LaB6The surface treating agent of the nano particles is one of citric acid, dodecyl benzene sulfonic acid or polyethylene glycol 2000; the solid content of the aqueous polyurethane dispersion is 30 percent; the solid content of the polyester emulsion is 37 percent.
The lanthanum hexaboride nano particles are used as a high-transparency heat-insulation energy-saving material, and have the characteristics of low visible light reflectivity, weak absorption, high transmittance, strong near-infrared sunlight absorption, low light transmittance and the like, and can block near-infrared light with higher energy and a wavelength of 780-1300 nm. Citric acid or dodecyl benzene sulfonic acid or polyethylene glycol 2000 as surface treating agent for improving LaB6The nano particles have dispersion stability and prevent the lanthanum hexaboride nano particles from agglomerating.
The uvioresistant agent is a polymeric benzophenone ultraviolet absorbent. The polymeric benzophenone ultraviolet absorbent has good compatibility with high molecular materials, can overcome the defect of external migration of common small molecular ultraviolet absorbents, shows a permanent photo-oxidative aging resistant effect, and prolongs the service life of the materials.
The thickness of the rare earth nanometer heat insulation coating is 0.5-0.7 mu m. The coating layer can achieve the functions of heat insulation and infrared ray blocking after reaching a certain thickness. The thicker the coating, the better the heat insulation effect, but the light transmittance of the film is reduced, and the cost is increased.
The polycarbodiimide is added into the base layer to resist hydrolysis, and the polycarbodiimide can effectively capture carboxyl generated by the hydrolysis of the polymer to generate a stable and harmless product, so that the polymer is prevented from being further hydrolyzed, and the polycarbodiimide can be used under the outdoor condition of a severe environment. The nano barium sulfate is added into the base layer as an opening agent, so that the light transmittance of the film can be improved, the haze of the film is reduced, and the definition of the film is improved.
The rare earth nanometer heat-insulating polyester film is prepared by the following preparation method:
1) preparing rare earth nanometer heat-insulating coating liquid according to the proportion, mechanically stirring and uniformly mixing the rare earth nanometer heat-insulating coating liquid before use, wherein the stirring time is 0.5 hour, and the rotating speed is 100 revolutions per minute;
2) the film is prepared by a double-layer co-extrusion process, two double-screw extruders are used for respectively carrying out melt extrusion and compounding at a die head, and specifically, the film extruded by the auxiliary double-screw extruder is used as an anti-ultraviolet layer, and the film of the main double-screw extruder is used as a base layer; adding PET slices and an anti-ultraviolet agent master batch on a feeding port of an auxiliary double-screw extruder according to weight percentage, wherein the extrusion temperature setting interval is 278-283 ℃; adding PET slices, nano barium sulfate master batch and polycarbodiimide master batch on a feed inlet of a main double-screw extruder according to weight percentage, wherein the extrusion temperature setting interval is 278-283 ℃;
3) and sequentially carrying out sheet casting, longitudinal stretching, rare earth nano heat insulation coating liquid coating, transverse stretching, heat setting and rolling on the film to obtain the three-layer composite rare earth nano heat insulation polyester film.
In the step 2), a feed inlet of an auxiliary double-screw extruder is added according to the following parts by mass: 95 parts of PET slices and 5 parts of an anti-ultraviolet agent master batch; the feed inlet of the main double-screw extruder is added according to the following parts by mass: 91 parts of PET slices, 1 part of nano barium sulfate master batch and 8 parts of polycarbodiimide master batch.
In the step 3), the longitudinal stretching temperature is 115-120 ℃, and the longitudinal stretching ratio is 3.5; the drying temperature of the coating liquid is 105-110 ℃; the transverse stretching temperature is 145-149 ℃, and the transverse stretching ratio is 3.0-3.2; the heat setting temperature is 230-232 ℃.
The uvioresistant agent master batch is prepared by adopting the following steps: mixing the crystallized and dried PET slices with a polymeric benzophenone ultraviolet absorbent according to a weight ratio of 9: 1 proportion, then melt blending, extruding and granulating by a double screw extruder.
The nano barium sulfate master batch is prepared by adopting the following method: mixing the crystallized and dried PET slices with nano barium sulfate according to a weight ratio of 95: 5, then melt blending, extruding and granulating by a double-screw extruder.
The polycarbodiimide masterbatch is prepared by adopting the following method: mixing the crystallized and dried PET slices with polycarbodiimide according to a weight ratio of 88: 12, then melt blending, extruding and granulating by a double screw extruder.
The invention has the beneficial effects that:
the rare earth nanometer heat-insulating polyester film prepared by the invention has the functions of heat insulation, ultraviolet resistance and hydrolysis resistance, has high light transmittance and can be applied to the field of window films.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
The rare earth nanometer heat insulation polyester film has a three-layer structure and comprises a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer.
The rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 24 parts of aqueous polyurethane dispersion, 25 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 24.8 parts of water. The rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle(LaB6) Ethanol solution of LaB6The solid content of the nano particles is 5 percent, and LaB6The surface treating agent of the nano particles is citric acid; the solid content of the aqueous polyurethane dispersion is 30 percent; the solids content of the polyester emulsion was 37%. The rare earth nanometer heat insulation coating is formed by coating, curing and drying rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, and the thickness of the rare earth nanometer heat insulation coating is 0.5 mu m.
The preparation method of the rare earth nanometer heat insulation polyester film comprises the following steps:
1) before the rare earth nanometer heat insulation coating liquid is used, the rare earth nanometer heat insulation coating liquid needs to be stirred and mixed evenly mechanically, the stirring time is 0.5 hour, and the rotating speed is 100 r/min.
2) The film is prepared by a double-layer co-extrusion process, two double-screw extruders are used for respectively melting and extruding polyester and compounding the polyester at a die head, the film extruded by the auxiliary double-screw extruder is used as an anti-ultraviolet layer, and the film of the main double-screw extruder is used as a base layer; adding 95 parts of PET slices and 5 parts of anti-ultraviolet agent master batch on a feeding port of an auxiliary double-screw extruder according to a weight ratio, wherein the extrusion temperature is set to be 278-283 ℃; adding 91 parts of PET slices, 1 part of nano barium sulfate master batch and 8 parts of polycarbodiimide master batch into a feed inlet of a main double-screw extruder according to a weight ratio, wherein the extrusion temperature setting interval is 278-283 ℃; the uvioresistant agent master batch is prepared by adopting the following steps: mixing the crystallized and dried PET slices with a polymeric benzophenone ultraviolet absorbent according to a weight ratio of 9: 1, uniformly mixing, and then performing melt blending extrusion granulation by a double-screw extruder to obtain the composite material; the nano barium sulfate master batch is prepared by adopting the following method: mixing the crystallized and dried PET slices with nano barium sulfate according to a weight ratio of 95: 5, uniformly mixing in proportion, and then performing melt blending extrusion granulation by a double-screw extruder to obtain the composite material; the polycarbodiimide masterbatch is prepared by adopting the following method: mixing the crystallized and dried PET slices with polycarbodiimide according to a weight ratio of 88: 12, then melt blending, extruding and granulating by a double screw extruder.
3) And sequentially carrying out sheet casting, longitudinal stretching, rare earth nano heat insulation coating liquid coating, transverse stretching, heat setting and rolling on the film to obtain the three-layer composite rare earth nano heat insulation polyester film. The longitudinal stretching temperature is 115-120 ℃, and the longitudinal stretching ratio is 3.5; the drying temperature of the coating liquid is 105-110 ℃; the transverse stretching temperature is 145-149 ℃, and the transverse stretching ratio is 3.0-3.2; the heat setting temperature is 230-232 ℃.
The light transmittance of the rare earth nanometer heat-insulating polyester film is 85%, the haze is 1.2%, the ultraviolet transmittance of 200-370 nm is less than 0.01%, the infrared blocking rate is greater than 70%, a heat-insulating test box with an infrared lamp is adopted for carrying out temperature difference test for 1 minute, the temperature of the rare earth nanometer heat-insulating polyester film is increased to 29.6 ℃ from 25 ℃, and the temperature of a reference sample, namely a PET polyester film without a coating layer and with the same thickness is increased to 40.3 ℃ from 25 ℃.
Example 2
The rare earth nanometer heat insulation polyester film has a three-layer structure and comprises a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer.
The rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 26 parts of aqueous polyurethane dispersion, 24 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23.8 parts of water. The rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle (LaB)6) Ethanol solution of LaB6The solid content of the nano particles is 5 percent, and LaB6The surface treating agent of the nano particles is dodecyl benzene sulfonic acid; the solid content of the aqueous polyurethane dispersion is 30 percent; the solids content of the polyester emulsion was 37%. The rare earth nanometer heat insulation coating is formed by coating, curing and drying rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, and the thickness of the rare earth nanometer heat insulation coating is 0.6 mu m.
The preparation method of the rare earth nanometer heat insulation polyester film is the same as that of the embodiment 1.
The light transmittance of the rare earth nanometer heat-insulating polyester film is 83%, the haze is 1.3%, the ultraviolet transmittance of 200-370 nm is less than 0.01%, the infrared blocking rate is greater than 75%, a heat-insulating test box with an infrared lamp is adopted for carrying out temperature difference test for 1 minute, the temperature of the rare earth nanometer heat-insulating polyester film is increased to 28.9 ℃ from 25 ℃, and the temperature of a reference sample, namely a PET polyester film without a coating layer and with the same thickness is increased to 40.2 ℃ from 25 ℃.
Example 3
The rare earth nanometer heat insulation polyester film has a three-layer structure and comprises a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer.
The rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 26 parts of aqueous polyurethane dispersion, 24 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23.8 parts of water. The rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle (LaB)6) Ethanol solution of LaB6The solid content of the nano particles is 5 percent, and LaB6The surface treating agent of the nano particles is dodecyl benzene sulfonic acid; the solid content of the aqueous polyurethane dispersion is 30 percent; the solids content of the polyester emulsion was 37%. The rare earth nanometer heat insulation coating is formed by coating, curing and drying rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, and the thickness of the rare earth nanometer heat insulation coating is 0.7 mu m.
The preparation method of the rare earth nanometer heat insulation polyester film is the same as that of the embodiment 1.
The light transmittance of the rare earth nanometer heat-insulating polyester film is 81%, the haze is 1.4%, the ultraviolet transmittance of 200-370 nm is less than 0.01%, the infrared blocking rate is more than 81%, a heat-insulating test box with an infrared lamp is adopted for carrying out temperature difference test for 1 minute, the temperature of the rare earth nanometer heat-insulating polyester film is increased to 28.1 ℃ from 25 ℃, and the temperature of a reference sample, namely a PET polyester film without a coating and with the same thickness is increased to 40.3 ℃ from 25 ℃.
Comparative example 1
The nano ITO heat insulation polyester film has a three-layer structure, and comprises a nano ITO heat insulation coating, a UV-resistant layer and a base layer.
The nano ITO heat insulation coating liquid consists of the following components in parts by mass: 25 parts of nano ITO heat insulating agent, 26 parts of aqueous polyurethane dispersion, 24 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23.8 parts of water. The nano ITO heat insulating agent is a nano ITO ethanol solution, wherein the solid content of ITO nano particles is 5%, and the surface treating agent of the ITO nano particles is sodium dodecyl benzene sulfonate; the solid content of the aqueous polyurethane dispersion is 30 percent; the solids content of the polyester emulsion was 37%. The nano ITO heat insulation coating is formed by coating a nano ITO heat insulation coating liquid on the upper surface of the ultraviolet-resistant layer, curing and drying, and the thickness of the nano ITO heat insulation coating is 0.6 mu m.
The preparation method of the nano ITO heat insulation polyester film is the same as that of the embodiment 1, and only the nano ITO heat insulation coating liquid is used for replacing the rare earth nano heat insulation coating liquid.
The nano ITO heat-insulation polyester film has the light transmittance of 80%, the haze of 1.8%, the ultraviolet transmittance of 200-370 nm of less than 0.01% and the infrared blocking rate of more than 65%, a heat-insulation test box with an infrared lamp is adopted for carrying out temperature difference test for 1 minute, the temperature of the nano ITO heat-insulation polyester film is increased to 32.2 ℃ from 25 ℃, and the temperature of a reference sample, namely a PET polyester film without a coating layer and with the same thickness is increased to 40.4 ℃ from 25 ℃.
Comparative example 2
The rare earth nanometer heat insulation polyester film has a three-layer structure and comprises a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer.
The rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 26 parts of aqueous polyurethane dispersion, 24 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23.8 parts of water. The rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle (LaB)6) Ethanol solution of LaB6The solid content of the nano particles is 5 percent, wherein LaB6The nanoparticles are not subjected to surface treatment; the solid content of the aqueous polyurethane dispersion is 30 percent; the solids content of the polyester emulsion was 37%. The rare earth nanometer heat insulation coating is formed by coating, curing and drying rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, and the thickness of the rare earth nanometer heat insulation coating is 0.7 mu m.
The preparation method of the rare earth nanometer heat insulation polyester film is the same as that of the embodiment 1.
The rare earth nanometer heat-insulation polyester film has the light transmittance of 79 percent, the haze of 2.4 percent, the ultraviolet transmittance of 200-370 nm of less than 0.01 percent and the infrared blocking rate of more than 31 percent, the temperature difference test is carried out for 1 minute by adopting a heat-insulation test box with an infrared lamp, the temperature of the rare earth nanometer heat-insulation polyester film is increased to 35.1 ℃ from 25 ℃, and the temperature of a reference sample, namely a PET polyester film without a coating layer and with the same thickness is increased to 40.1 ℃ from 25 ℃.
Comparative example 3
The rare earth nanometer heat insulation polyester film has a three-layer structure and comprises a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer.
The rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 26 parts of aqueous polyurethane dispersion, 24 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23.8 parts of water. The rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle (LaB)6) Ethanol solution of LaB6The solid content of the nano particles is 5 percent, and LaB6The surface treating agent of the nano particles is dodecyl benzene sulfonic acid; the solid content of the aqueous polyurethane dispersion is 30 percent; the solids content of the polyester emulsion was 37%. The rare earth nanometer heat insulation coating is formed by coating, curing and drying rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, and the thickness of the rare earth nanometer heat insulation coating is 0.3 mu m and less than 0.5 mu m.
The preparation method of the rare earth nanometer heat insulation polyester film is the same as that of the embodiment 1.
The light transmittance of the rare earth nanometer heat-insulating polyester film is 87%, the haze is 1.1%, the ultraviolet transmittance of 200-370 nm is less than 0.01%, the infrared blocking rate is more than 81%, a heat-insulating test box with an infrared lamp is adopted for carrying out temperature difference test for 1 minute, the temperature of the rare earth nanometer heat-insulating polyester film is increased to 34.5 ℃ from 25 ℃, and the temperature of a reference sample, namely a PET polyester film without a coating layer and with the same thickness is increased to 40.4 ℃ from 25 ℃.
The implementation result shows that the film prepared by the invention has the functions of heat insulation and ultraviolet resistance, and has high light transmittance and obvious technical effect. In comparative example 1, it can be seen that the thin film heat insulating ability is reduced after replacing the nano ITO heat insulating coating liquid with the rare earth nano heat insulating coating liquid. As can be seen in comparative example 2, LaB6When the nano particles are not subjected to surface treatment, agglomeration is easy to occur, so that the heat insulation capability is greatly reduced. In comparative example 3, it can be seen that when the coating thickness is less than 0.5. mu.m, the film has an unsatisfactory heat-insulating function.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification are included in the scope of the present invention.
Claims (7)
1. A rare earth nanometer heat insulation polyester film is characterized in that: the rare earth nanometer heat insulation polyester film has a three-layer structure and sequentially comprises a rare earth nanometer heat insulation coating, an ultraviolet-resistant layer and a base layer from top to bottom; the rare earth nanometer heat insulation coating is formed by coating rare earth nanometer heat insulation coating liquid on the upper surface of the ultraviolet resistant layer, curing and drying, has the function of blocking infrared rays, and the ultraviolet resistant layer is arranged on the base layer; the main components of the anti-ultraviolet layer are anti-ultraviolet agent and polyethylene glycol terephthalate; the main components of the base layer are nano barium sulfate, polycarbodiimide and polyethylene glycol terephthalate.
2. The rare earth nano heat-insulating polyester film as claimed in claim 1, wherein:
the rare earth nanometer heat insulation coating liquid consists of the following components in parts by weight: 25 parts of rare earth nanometer heat insulating agent, 24-26 parts of aqueous polyurethane dispersion, 24-26 parts of polyester emulsion, 1 part of multifunctional aziridine crosslinking agent, 0.2 part of polythiophene antistatic agent and 23-26 parts of water.
3. The rare earth nano heat-insulating polyester film as claimed in claim 1, wherein: the rare earth nanometer heat insulating agent is lanthanum hexaboride nanometer particle (LaB)6) The method comprises the following steps of (1) ethanol solution, wherein the solid content of lanthanum hexaboride nanoparticles is 5%, the lanthanum hexaboride nanoparticles are subjected to surface treatment, and a surface treatment agent of the lanthanum hexaboride nanoparticles is one of citric acid, dodecyl benzene sulfonic acid or polyethylene glycol 2000; the solid content of the aqueous polyurethane dispersion is 30 percent; the solid content of the polyester emulsion is 37 percent.
4. The rare earth nano heat-insulating polyester film as claimed in claim 1, wherein: the weight ratio of the uvioresistant agent in the uvioresistant layer to the polyethylene glycol terephthalate is 5: 995.
5. the rare earth nano heat-insulating polyester film as claimed in claim 1, wherein: the mass ratio of the nano barium sulfate, the polycarbodiimide and the polyethylene glycol terephthalate in the base layer is 5: 96: 9899.
6. the rare earth nano heat-insulating polyester film as claimed in claim 1, wherein: the uvioresistant agent is a polymeric benzophenone ultraviolet absorbent.
7. The rare earth nano heat-insulating polyester film as claimed in claim 1, wherein: the thickness of the rare earth nanometer heat insulation coating is 0.5-0.7 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310258.0A CN110920198A (en) | 2019-12-18 | 2019-12-18 | Rare earth nanometer heat-insulating polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310258.0A CN110920198A (en) | 2019-12-18 | 2019-12-18 | Rare earth nanometer heat-insulating polyester film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110920198A true CN110920198A (en) | 2020-03-27 |
Family
ID=69864222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911310258.0A Pending CN110920198A (en) | 2019-12-18 | 2019-12-18 | Rare earth nanometer heat-insulating polyester film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110920198A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892732A (en) * | 2020-09-02 | 2020-11-06 | 吴江友鑫新材料科技有限公司 | Heat-insulating polyester film and preparation method thereof |
| CN115820024A (en) * | 2022-11-29 | 2023-03-21 | 北京星驰恒动科技发展有限公司 | High-spectral-reflectivity high-infrared-emissivity powder, preparation method and application |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061117A (en) * | 2010-12-06 | 2011-05-18 | 上海奇鸣涂料有限公司 | Coating composition coated on glass surfaces and preparation method thereof |
| WO2011156571A1 (en) * | 2010-06-09 | 2011-12-15 | Toray Plastics (America), Inc. Lumirror Division | Optically clear uv and hydrolysis resistant polyester film |
| CN102816320A (en) * | 2012-08-24 | 2012-12-12 | 常州乐凯高性能材料有限公司 | Preparation method of polyester chip for optical film |
| CN105593019A (en) * | 2013-10-03 | 2016-05-18 | 杜邦帝人薄膜美国有限公司 | Co-extruded multi-layer polyester films having hydrolytic stability and improved delamination resistance |
| CN106671547A (en) * | 2016-12-23 | 2017-05-17 | 合肥乐凯科技产业有限公司 | Optical polyester film |
| CN106794997A (en) * | 2014-08-29 | 2017-05-31 | 住友金属矿山株式会社 | The aggregate of hexaboride particulate, hexaboride particle dispersion liquid, hexaboride microparticle dispersion, hexaboride microparticle dispersion interlayer transparent base, infrared absorbing film and infrared absorbing glass |
| CN107011634A (en) * | 2016-07-26 | 2017-08-04 | 北京工商大学 | Biodegradable transparent polyester film that a kind of inorganic nano-filler is modified and preparation method thereof |
-
2019
- 2019-12-18 CN CN201911310258.0A patent/CN110920198A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011156571A1 (en) * | 2010-06-09 | 2011-12-15 | Toray Plastics (America), Inc. Lumirror Division | Optically clear uv and hydrolysis resistant polyester film |
| US20110305913A1 (en) * | 2010-06-09 | 2011-12-15 | Toray Plastics (America), Inc. Lumirror Division | Optically clear uv and hydrolysis resistant polyester film |
| CN102061117A (en) * | 2010-12-06 | 2011-05-18 | 上海奇鸣涂料有限公司 | Coating composition coated on glass surfaces and preparation method thereof |
| CN102816320A (en) * | 2012-08-24 | 2012-12-12 | 常州乐凯高性能材料有限公司 | Preparation method of polyester chip for optical film |
| CN105593019A (en) * | 2013-10-03 | 2016-05-18 | 杜邦帝人薄膜美国有限公司 | Co-extruded multi-layer polyester films having hydrolytic stability and improved delamination resistance |
| CN106794997A (en) * | 2014-08-29 | 2017-05-31 | 住友金属矿山株式会社 | The aggregate of hexaboride particulate, hexaboride particle dispersion liquid, hexaboride microparticle dispersion, hexaboride microparticle dispersion interlayer transparent base, infrared absorbing film and infrared absorbing glass |
| CN107011634A (en) * | 2016-07-26 | 2017-08-04 | 北京工商大学 | Biodegradable transparent polyester film that a kind of inorganic nano-filler is modified and preparation method thereof |
| CN106671547A (en) * | 2016-12-23 | 2017-05-17 | 合肥乐凯科技产业有限公司 | Optical polyester film |
Non-Patent Citations (9)
| Title |
|---|
| 吕少仿: "《绿色生化技术与小城镇可持续发展》", 31 December 2017, 武汉：华中科技大学出版社 * |
| 姜肇中: "《玻璃纤维应用技术》", 31 January 2004 * |
| 李祖德: "《塑料加工技术应用手册》", 31 October 1997, 北京：中国物资出版社 * |
| 橡塑加工助剂: "《橡塑加工助剂》", 30 September 2004, 北京：化学工业出版社 * |
| 王文广: "《"十三五"普通高等教育本科规划教材 聚合物改性原理》", 31 March 2018, 北京：中国轻工业出版社 * |
| 肖立华: "《窗用透明太阳辐射屏蔽材料理论与实验研究》", 30 March 2018, 北京：北京航空航天大学出版社 * |
| 舒友: "《涂料配方设计与制备》", 31 August 2014, 成都：西南交通大学出版社 * |
| 董永春: "《纺织助剂化学》", 31 January 2010, 上海：东华大学出版社 * |
| 陆锦昌: "《丝绸染整手册 第2版》", 31 October 1982, 中国纺织出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892732A (en) * | 2020-09-02 | 2020-11-06 | 吴江友鑫新材料科技有限公司 | Heat-insulating polyester film and preparation method thereof |
| CN115820024A (en) * | 2022-11-29 | 2023-03-21 | 北京星驰恒动科技发展有限公司 | High-spectral-reflectivity high-infrared-emissivity powder, preparation method and application |
| CN115820024B (en) * | 2022-11-29 | 2023-12-22 | 北京星驰恒动科技发展有限公司 | High-spectral reflectivity high-infrared emissivity powder, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100463935C (en) | Sunlight controlled transparent film in low radiation, prepartion method and application | |
| JP4349779B2 (en) | Heat ray shielding transparent resin molding and heat ray shielding transparent laminate | |
| TWI503346B (en) | A near infrared light shielding film, and a method of producing the near infrared light shielding | |
| CN107236140B (en) | Antibacterial film, preparation method thereof and packaging material comprising antibacterial film | |
| CN110920198A (en) | Rare earth nanometer heat-insulating polyester film | |
| CN108556441B (en) | Optical polyester film | |
| KR20180003460A (en) | Polyester muti-layer film | |
| CN104669756B (en) | A kind of infrared resistant nano heat-insulating polyester film and preparation method thereof | |
| CN105348681A (en) | Flame-retardant thermal-insulation auto-film and preparation method thereof | |
| CN103753924A (en) | High-transparency polyester film and preparation method thereof | |
| CN113667168A (en) | Water-blocking enhanced degradable antibacterial film and preparation method and application thereof | |
| CN110128767A (en) | The low transparent polyvinylidene fluoride film and its manufacturing method that high ultraviolet-resistant is precipitated | |
| CN105128475A (en) | Polyester film and preparation method thereof | |
| CN110421938B (en) | Preparation method of easy-to-tear polyester film | |
| CN110722859A (en) | Optical polyester film and preparation method thereof | |
| WO2006000326A1 (en) | Film containing transparent metal oxide, method for the production thereof, and use thereof | |
| CN113291010A (en) | Maintenance-free transparent film, preparation method and application thereof | |
| CN110254018B (en) | Colored double-sided antistatic polyester film and preparation method thereof | |
| JP5521806B2 (en) | Polyester film for solar cell back surface protective film | |
| JP2011242733A (en) | Polyester film for protecting polarizing plate | |
| JP5840967B2 (en) | Resin composition and production method thereof, polyethylene terephthalate film, and back sheet for solar cell module | |
| KR100989856B1 (en) | Preparation Method for Polyester | |
| CN104842608A (en) | Uvioresistant polyester film for window film and preparation method therefor | |
| EP3384326B1 (en) | Structured film laminate with antistatic compositions embedded therein | |
| CN111605278B (en) | PVC haze-removing waterproof roll with double-layer structure and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200327 |
|
| WD01 | Invention patent application deemed withdrawn after publication |