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PVB heat insulation film for liquid crystal display laminated glass and preparation method thereof
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A technology for laminated glass and liquid crystal display, applied in chemical instruments and methods, glass/slag layered products, lamination, etc., to achieve the effects of low haze, low transmittance of ultraviolet and infrared light, and excellent bond strength
Pending Publication Date: 2021-04-09
安徽皖维皕盛新材料有限责任公司
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Problems solved by technology
At present, there are few reports on the heat insulation function of LCD screens.
Method used
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Embodiment 1
[0030] In terms of parts by mass, put 18 parts of plasticizer, 3 parts of antioxidant, 3 parts of ultraviolet absorber and 0.4 part of heat insulating agent (ITO series) into the stirring tank and stir for 1 hour, and then add 75 parts of PVB resin Mix uniformly in the mixer, set the cooling temperature of the pre-mixer to 10°C, and finally transport to the twin-screw extruder for heating, plasticization, extrusion and casting, so as to obtain PVB heat insulation film.
[0031] The process parameters of the extruder are controlled as follows: the screw speed of the extruder is 130rmp, and the body temperature of each zone of the extruder is 40°C, 100°C, 120°C, 125°C, 125°C, 130°C, 145°C, 145°C, 140°C, 140°C, 130°C.
Embodiment 2
[0033] In terms of parts by mass, put 18 parts of plasticizer, 3 parts of antioxidant and 0.4 part of heat insulating agent (ITO series) into the stirring tank and stir for 1 hour, then add 75 parts of PVB resin into the pre-mixer and mix evenly. The cooling temperature of the premixer is set at 10°C, and finally transported to a twin-screw extruder for heating, plasticization, extrusion and casting, so as to obtain a PVB heat insulation film.
[0034] The process parameters of the extruder are controlled as follows: the screw speed of the extruder is 130rmp, and the body temperature of each zone of the extruder is 40°C, 100°C, 120°C, 125°C, 125°C, 130°C, 145°C, 145°C, 140°C, 140°C, 130°C.
Embodiment 3
[0036] In parts by mass, put 18 parts of plasticizer, 3 parts of antioxidant, and 3 parts of ultraviolet absorber into the stirring tank and stir for 1 hour, then add 75 parts of PVB resin into the premixer and mix evenly, and the premixer cooling temperature It is set at 10°C, and finally transported to a twin-screw extruder for heating, plasticization, extrusion and casting, so as to obtain a PVB heat insulation film.
[0037] The process parameters of the extruder are controlled as follows: the screw speed of the extruder is 130rmp, and the body temperature of each zone of the extruder is 40°C, 100°C, 120°C, 125°C, 125°C, 130°C, 145°C, 145°C, 140°C, 140°C, 130°C.
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Abstract
The invention discloses a PVB heat-insulating film for liquid crystal display laminated glass and a preparation method thereof. The preparation method comprises the following steps: firstly, fully mixing a heat-insulating agent with a plasticizer, an antioxidant and an ultraviolet absorber in a stirring kettle; adding an obtained mixed solution and PVB resin into a premixing machine and conducting uniform mixing; and finally, conveying the formed mixture into a double-screw extruder, and successively carrying out heating, plasticizing, extruding and casting to obtain the PVB heat-insulating film for the liquid crystal display laminated glass. The produced PVB heat-insulating film is excellent in heat insulation performance, and can prevent breakage, reduce near-infrared light transmittance and haze and improve the transmittance of visible light when being used for manufacturing the liquid crystal display laminated glass.
Description
technical field [0001] The invention belongs to the technical field of PVB films, and in particular relates to a PVB thermal insulation film used for liquid crystal display laminated glass and a preparation method thereof. Background technique [0002] Polyvinyl butyral (Polyvinyl Butyral Resin, PVB) film, also known as PVB film, PVB interlayer film, is a plasticized film based on PVB resin, due to its transparent, light resistance, heat resistance, sound insulation, softness, It is widely used in automobile windshield, high-rise building glass, glass curtain wall, bulletproof glass, etc. due to its excellent performance of anti-fog, non-hardening at low temperature and good adhesion to glass. [0003] The radiation of sunlight is mainly electromagnetic waves with a wavelength in the range of 200-2500nm, among which the wavelength between 200-380nm is called ultraviolet light, the wavelength between 380-780nm is called visible light, and the wavelength between 780-2500nm is ...
Claims
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Application Information
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