46results about How to "Good light reflection performance" patented technology

The invention discloses a radiation heat dissipation cooling coating and a production technology thereof. The radiation heat dissipation cooling coating comprises the following components: 2-15 parts of titanium phosphate, 10-20 parts of aluminum oxide, 1-10 parts of aluminum nitride, 0.1-0.5 part of silane coupling agent, 10-20 parts of waterborne epoxy resin and 20-80 parts of water. Due to the titanium phosphate inorganic colloidal particles, the average particle size of the radiation heat dissipation cooling coating is less than 100 nanometers, condensation occurs to generate a binding force, so that the coating surface has nano material components showing a form which is smooth and clean from macroscopic view and rough in microscopic view, the contact area between a heat dissipation device and the outside can be greatly increased, and the heat dissipation effect is obviously improved.

The present invention is a composition containing a polyester resin containing at least an alicyclic dicarboxylic acid component and an alicyclic diol component, and it is a polyester resin composition which satisfies that a glass transition temperature is 65 DEG C or more and 90 DEG C or less, a refractive index at sodium D line is 1.500 or more and 1.570 or less, a titanium element content is 5 ppm or more and 500 ppm or less, a phosphorus element content is 50 ppm or more and 500 ppm or less and a gel fraction is 50% or less. By the present invention, it is possible to obtain a polyester resin composition having a low refractive index and photoelastic coefficient, and in which a thermally degraded foreign substance is reduced.

A foamed sheet for reflectors which can be thermoformed into reflectors having desired shapes. A foamed sheet (A) for reflectors, characterized by being constituted of a foamed sheet (1) of a polypropylene resin which has a mean cell diameter of 50 to 650[mu]m and at least one uneven surface (12) formed by cells (11) present in the neighborhood of the surface and a non-foamed sheet (3) of the polypropylene resin which is united with the sheet (1) by lamination in such a way that the sheet (3) lies on the sheet (1) along the uneven surface (12) to form an uneven surface (31), by containing an inorganic filler (2) in an amount of 50 to 200g/m<2>, the whole or part of which filler is contained in the sheet (1), and by having a difference in refractive index of 1.0 or above between the inorganic filler (2) and the polypropylene resin, a thickness of the sheet (A) of 0.2 to 2.0mm, and a light reflectance of 97% or above.

The present invention is a composition containing a polyester resin containing at least an alicyclic dicarboxylic acid component and an alicyclic diol component, and it is a polyester resin composition which satisfies that a glass transition temperature is 65° C. or more and 90° C. or less, a refractive index at sodium D line is 1.500 or more and 1.570 or less, a titanium element content is 5 ppm or more and 500 ppm or less, a phosphorus element content is 50 ppm or more and 500 ppm or less and a gel fraction is 50% or less. By the present invention, it is possible to obtain a polyester resin composition having a low refractive index and photoelastic coefficient, and in which a thermally degraded foreign substance is reduced.

The present invention provides a thin light-reflecting sheet with excellent light property of flame retardancy, a high light-reflectance and a high light-shielding ability, which is formed from a polycarbonate resin composition containing a combination of 70% to 30% by mass of a polycarbonate-based polymer (A) and 30% to 70% by mass of titanium oxide (B) having a difference of moisture concentration at 100° C. with that at 300° C. of 2700 ppm by mass or less. The invention also provides a shaped article thereof.

An object of the present invention is to provide a transparent electroconductive film, which in addition to satisfying each of the requirements of favorable phototransmittance, high electrical conductivity, low refractive index and the like required when using in a multi-junction solar cell, enables running costs to be reduced since the transparent electroconductive film is produced without using a vacuum deposition method. The transparent electroconductive film for a solar cell of the present invention is provided between photoelectric conversion layers of a multi-junction solar cell, a coated film of fine particles formed by coating using a wet coating method is baked, the electroconductive component in the base material that composes the electroconductive film is present within the range of 5 to 95% by weight, and the thickness of the electroconductive film is within the range of 5 to 200 nm.

The present invention relates to an epoxy resin composition for an optical semiconductor device having an optical semiconductor element mounting region and having a reflector that surrounds at least a part of the region, the epoxy resin composition being an epoxy resin composition for forming the reflector, the epoxy resin composition including the following ingredients (A) to (E): (A) an epoxy resin; (B) a curing agent; (C) a white pigment; (D) an inorganic filler; and (E) a specific release agent.

The invention discloses water-based metal stoving varnish for an electro-tricycle. The water-based metal stoving varnish is prepared from the following raw materials in parts by weight: 20-40 parts of water-based acrylic resin, 20-40 parts of methylated amino resin, 10-18 parts of modified epoxy emulsion, 2-8 parts of acrylic acid B-hydroxypropyl acrylate, 2-8 parts of styrene, 1-2 parts of benzoyl peroxide, 2-10 parts of dimethylethanolamine, 10-35 parts of dioxane, 0.2-3 parts of resin-packed aluminium paste, 10-30 parts of filler, 1-3 parts of polyvinyl butyral, 1-3 parts of flash rust-resisting agent, 1-3 parts of salt mist resistor, 1-3 parts of dispersant, 1-3 parts of defoamer, 1-3 parts of thickener and 30-45 parts of water. The water-based metal stoving varnish is environment-friendly, and is good in water resistance and storage stability.

An eye protection kit comprises a plurality of soft, smooth eye patches and an atomizer providing ultraviolet radiation protection for use while sunbathing or in a tanning bed is herein disclosed stored within a carrying case. The eye patches are each comprised of a textile material comprising reinforced perimeters. For personal comfort and to maintain moisture, the patches are wetted with a cooling fluid therefrom the atomizer. Further, the patches would be oversized, thus providing shielding to areas adjacent to the eye where skin lines often form and shielding below the eyes where sunbathers sometimes develop unflattering skin discolorization.

The invention discloses a reflecting plate which comprises a substrate layer, a bottom color layer used for preventing light rays from penetrating, a metal light reflection layer for reflecting the light rays and a protection layer for preventing the metal light reflection layer from being oxidized and damaged; by taking the transmission direction of the light rays as a reference, the bottom color color layer is fixed on the rear surface of the metal light reflection layer; the substrate layer is fixed on the rear surface of the bottom color layer; the protection layer is fixed on the front surface of the metal light reflection layer; the metal light reflection layer is a main material layer which plays a functional role; when the light rays irradiate to the metal light reflection layer, the light rays can be reflected back; more particularly, due to the existence of the bottom color layer, the light rays can be prevented from penetrating the metal light reflection layer so that the light rays can be completely reflected by the metal light reflection layer; and the protection layer covers the metal light reflection layer and can prevent the metal light reflection layer from being damaged or oxidized. The reflecting plate disclosed by the invention has the advantages of good light reflection property, long service life, simple structure and easiness in implementation and can be widely applied to various products having light reflection requirements.

The invention provides a shell. The shell comprises a polymer ceramic composite layer; the polymer ceramic composite layer comprises at least one of rod-shaped ceramic powder and a fiber material, and further comprises sheet-shaped ceramic powder and a polymer. According to the shell, the rod-shaped ceramic powder and/or the fiber material and the sheet-shaped ceramic powder are in lap joint to form a net-shaped heat conduction channel, so that the heat conduction performance and the partial strength of the shell are improved; and meanwhile, the specific surface area of the sheet-shaped ceramic powder is large, a light reflection effect is good, the surface glossiness and the ceramic texture of the shell are improved, and application of the shell is better facilitated. The invention further provides a preparation method of the shell and electronic equipment.

The present invention provides a fabric ultraviolet shielding coating material, and the fabric coating has good ultraviolet shielding effect, and is free of poisonous and harmful elements. The preparation process is simple, production cost is low, and the fabric ultraviolet shielding coating material is suitable for industrialized production. The coating in the fabric ultraviolet shielding coating material comprises the following components by weight: 2-5% of polyethylene glycol (peg), 0.7-1.3% of poly phenyl methyl siloxane, 0.3-0.6% of zinc chloride complexe, 0.7-1.2% of hydroxyethyl cellulose, 26-31% of waste glass powder and waste cement mixed powder, 7-11% of water, and balance of composite waterborne resin.

The invention discloses a polycarbonate composite material as well as a preparation method and application thereof, and the polycarbonate composite material comprises the following components in parts by weight: 55-80 parts of PC resin; 4-10 parts of ABS resin; 1-5 parts of an inorganic filler; and 2-7 parts of rutile type titanium dioxide. The ABS resin, the inorganic filler and the rutile type titanium dioxide are added and cooperate with one another, so that the light reflection capacity of the polycarbonate material can be effectively improved, meanwhile, the energy loss of the material is obviously reduced, and the prepared polycarbonate composite material with low internal friction is particularly suitable for preparing illumination lampshades, can reduce the light loss, and improves the energy utilization efficiency of the lamp, and effective energy conservation of the lighting lamp is fundamentally achieved from materials.

The invention discloses a method for preparing an insulating antistatic high-reflectivity waterborne coating which is composed of the following components: an epoxy resin, 4-dimethyl aminopyridine, graphene oxide, terpene phenolic resin, acrylic acid, ethylene glycol, butyl acrylate, hydroxy calcium phosphate, magnesium hydroxide whisker, pure water, triethanolamine, polyacetylene, vinyl ester resin, sodium acetate trihydrate, an ethylene glycol aqueous solution, thioacetamide, zinc sulfide, potash, a curing agent, a dispersing agent, a defoamer and a leveling agent. The waterborne solvent coating disclosed by the invention is free of volatile organic compound, compared with other coatings, the coating is small in pollution to the environment and high in reflectivity, and not only can assist a lamp to emit strong and bright light, but also has stable and excellent high reflectivity, and the high-reflectivity waterborne coating additionally has excellent impact resistance and flexibility, is very good in corrosion resistance and ultraviolet resistance and is also simple and convenient to use.

The invention discloses a manufacturing method of a light-emitting diode. The light-emitting diode is manufactured by a metalized connection method. The method is characterized in that the sizes of modules are defined on a wafer; LED chips in the modules are firstly connected by a metalized connection technique for a semiconductor process; meanwhile, opening positions of welding pads are also defined; and the wafer is cut according to a cutting lane between the modules when cut, so that the cutting times is relatively few; and the production cost can be reduced. In addition, partial side walls of the LED chips are coated with metal layers; and these metal films (an aluminum bronze film, a gold film or a silver film) have excellent light reflectivity, so that photons irradiated to the side walls of the chips by LEDs are reflected to the surfaces of the LEDs to improve the luminous efficiency.

The invention relates to a solar photovoltaic component and a preparation method thereof. The solar cell component comprises a first glass substrate, a transparent first packaging layer, a reflecting layer, a transparent second packaging layer, a solar cell sheet and a second glass substrate. The first packaging layer, the reflecting layer, the second packaging layer and the second glass substrate are laminated on the first glass substrate in turn. The second packaging layer is provided with a sealed accommodating cavity. The solar cell sheet is accommodated in the accommodating cavity. The second glass substrate is provided with a pattern surface which is provided with patterns formed by multiple protrusions arranged in a spacing way, and the pattern surface of the second glass substrate and the second packaging layer are laminated. Reflectivity of the reflecting layer is more than 60%. The solar photovoltaic component has great optical efficiency and conversion efficiency.

The invention discloses a material structure capable of reflecting light rays. The material structure capable of reflecting the light rays consists of a base material layer, a metal light-reflection layer and a protection layer, wherein the metal light-reflection layer is plated on the base material layer in a vacuum mode; the metal light-reflection layer is a functional main material layer which is used for reflecting the light rays; when the light rays are irradiated to the metal light-reflection layer, more than 95 percent of the light rays are reflected back; the protection layer covers the metal light-reflection layer; and the protection layer can prevent the metal light-reflection layer from being damaged or oxidized. The material structure capable of reflecting the light rays has the advantages of better light-reflection performance, long service life and simple structure, is easy to implement and can be widely applied to various products having light ray reflection requirements such as a backlight module of a liquid crystal display screen.

The invention discloses a backboard of an optical display module. The optical display module comprises a display panel, a light guide plate and the backboard. The backboard comprises a light reflection coating, a substrate and a conductive anti-oxidation coating which are sequentially arranged from top to bottom, wherein the light reflection coating is arranged on the side, close to the light guide plate, of the substrate, and the conductive anti-oxidation coating is arranged on the side, away from the light guide plate, of the substrate. The invention further provides a preparation method ofthe backboard of the optical display module. The backboard integrates a light reflection function, an anti-static function, a fixing function and an anti-oxidation function, and can meet high use requirements; a multifunctional slurry coating mode is adopted in the preparation process of the backboard, so that environmental pollution is avoided, the production efficiency is high, and the production cost is low.