31results about How to "Has luminous properties" patented technology

The invention belongs to the field of photoelectric functional materials, and provides a BNT-base lead-free electrostriction material with light-emitting characteristic. The chemical composition conforms to the chemical general formula (1-x)(Bi0.5Na0.5)TiO[3]-xM-yR, wherein M is selected from BaTiO3 or (Ba0.90Ca0.10)(Ti0.92Sn0.08)O3, R is selected from one of Pr, Sm, Eu, Tb, Gd, Dy, Er, Ho or Tm, 0.06<= x <=0.09, and 0.001<= y <=0.01. The invention also provides a preparation method and application of the BNT-base lead-free electrostriction material with light-emitting characteristic. The material has the photoluminescent characteristic and excellent zero-lag electrostriction property, and is hopeful to be applied to the technical fields of photoelectric integration, micro electromechanical systems, photoelectric sensing and LEDs (light-emitting diodes).

The invention belongs to the technical field of organic photoelectric functional material and provides anionic iridium complex coated polymer nano-particles and a preparation method and application thereof. Firstly, a phosphorescent iridium complex for detecting hypochlorite (ClO-) and containing oximido groups (-C = N-OH); secondly, a ring opening polymerization method is adopted and polyethylene glycolis used as an initiator to prepare anamphiphilic polymer polyethylene glycol-polylactic acid (mPEG-PLA); finally, the iridium complex and the amphiphilic polymer perform self-assembly to obtain the ionic iridium complex coated polyethylene glycol-polylactic acid polymer nano-particles by adopting a nano precipitation method. The nano-material coated iridium complex has the following structural formula. The nano-material can be applied to the fields of hypochlorite detection, cell marking and imaging, time-resolved service life imaging and the like. The nano-particles are uniform in size, good in biocompatibility, simple to prepare, remarkable in ClO- detection effect, good in selectivity and quick to response and can be excited by visible light.

The invention discloses a high-heat-dissipation luminous keyboard membrane and a preparation method thereof. The high-heat-dissipation luminous keyboard membrane is prepared from the following components of polycarbonate, polyacrylate, luminous powder, graphene, modified attapulgite clay, nanometer titanium dioxide, magnetic component, anti-aging agent, antioxidant and flame retardant. The preparation method comprises the following steps: adding the polycarbonate and the polyacrylate into a reaction kettle, heating, melting, adding the graphene, mixing and reacting for 1 to 2 hours; adding the luminous powder, the anti-aging agent, the antioxidant and the flame retardant, stirring uniformly, and performing shearing dispersion; adding the modified attapulgite clay and the nanometer titanium dioxide, stirring uniformly, placing a mixture into an ultrasonic environment and holding for 10 to 20 minutes, adding the magnetic component, mixing uniformly, and placing a mixture into a membrane forming machine for membrane forming to obtain the keyboard membrane. The keyboard membrane has higher heat dissipation performance and higher luminous characteristic, so that a computer can be operated without turning on a light at night, and the energy consumption is lowered greatly; the high-heat-dissipation luminous keyboard membrane has better significance.

The invention provides a luminous pearl nucleus and a preparation method thereof as well as a method for cultivating luminous pearls. The method for preparing the luminous pearl nucleus comprises the following steps of uniformly mixing fluorescent powder with other randomly-selected components and putting the mixture into a crucible; putting the crucible into a reducing atmosphere furnace to be heated; after 5-8 hours, slowly raising the furnace temperature to 1150-1600 DEG C; pressurizing to be more than two barometric pressures and keeping a constant temperature and a constant pressure for 2-3 hours; directly utilizing a mould to press the fluorescent powder at a fused state into a luminous pearl nucleus shape; or after keeping the constant temperature and the constant pressure for 2-3 hours, naturally cooling to be condensed; and taking the crucible out of the atmosphere furnace and cooling to a room temperature, and polishing a condensed body into the luminous pearl nucleus shape. The luminous pearls cultivated by using the luminous pearl nucleus can resist corrosion of chemicals such as an acid, an alkali and the like, and can emit high-brightness light for a long time.

The invention discloses a 3D printing ABS composite material capable of continuously emitting light and a preparation method thereof. The preparation method comprises the following steps: respectively weighing long afterglow fluorescent powder, KH550, ABS particles and ABS powder; adding the KH550 into deionized water, carrying out hydrolyzing and stirring, adding fluorescent powder, performing refluxing, cooling and washing, carrying out vacuum drying to constant weight, and conducting grinding to obtain KH550 modified fluorescent powder; after the ABS powder is acidified by hydrochloric acid, grafting the acidified ABS powder with the KH550 modified fluorescent powder through HATU to obtain a composite material; and subjecting the composite material to melting and manufacturing through a 3D printing extruder, and carrying out extrusion and drawing to obtain the 3D printing ABS composite material capable of continuously emitting light. According to the preparation method, the combination of a long-afterglow luminescent material and a 3D printing technology is realized, and the prepared 3D printing composite material not only can continuously emit light, but also has good mechanical properties, can be applied to the aspects of medicine, the manufacturing industry, the food industry, the industry, the jewelry industry and the like, and greatly expands the application field of 3D printing.

According to a preparation method of a luminous zipper, energy-storage luminous polyester yarns are woven into a luminous zipper base band, energy-storage luminous injection molding material particlesare used for preparing the luminous zipper blank, and the energy-storage luminous zipper is obtained through after-treatment; the energy-storage luminous polyester yarns are light-absorption energy-storage polyester fibers prepared by adding a light-storage energy-storage rare earth material into polyester; the energy-storage luminescent injection molding material particles are injection moldingparticles prepared by adding a powdery light-storage luminescent material into polyester or polyformaldehyde, and have a melt index of 17-22g/10min. According to the method, the process arrangement isreasonable, the preparation cost is moderate, and the prepared luminous zipper has the characteristics of light absorption, energy storage and luminescence, can continuously emit light in a dark environment, and is excellent in physical property index and safe to use.

The invention belongs to the technical field of computer material, and provides an antistatic computer fan composite material. The antistatic computer fan composite material comprises the following raw materials in parts by weight: 53-60 parts of polytetrafluoroethylene, 12-20 parts of graphene reinforcing fibers, 13-20 parts of organic fibers, 6-11 parts of conductive polymers, 2-7 parts of diffusing oil, 2-5 parts of a fire retardant , 1-3 parts of zinc-copper alloy, and 1-5 parts of plasticizer. The polytetrafluoroethylene is used as a main material of the antistatic computer fan composite material, auxiliary materials including the conductive polymers, the diffusing oil, the fire retardant, the zinc-copper alloy, the plasticizer and the like are added, and therefore, the compressive strength, the toughness and the antistatic property of the composite material are improved.

The invention discloses a preparation method of a rare earth cerium doped gallium oxide nano material. The preparation method comprises the following steps of: preparing a silicon substrate; fully grinding gallium oxide, cerium oxide and carbon powder to obtain mixed powder; putting the mixed powder into a tubular furnace, introducing argon, and heating for pre-reaction; and under the action of argon-oxygen mixed gas, cooling to obtain the rare earth cerium doped gallium oxide nano material. The rare earth cerium-doped gallium oxide nano material is prepared through a carbon thermal reduction method under the condition of not adding a surface metal catalyst, the method is simple in process step, low in cost, low in equipment requirement and beneficial to industrial production, and the problems that in the prior art, the preparation process of the rare earth cerium-doped gallium oxide nano material is complex, and the requirement on manufacturing equipment is high are solved.

The invention discloses an organic light-emitting compound as well as a preparation method and application thereof. The organic light-emitting compound has a structural formula shown in the specification, wherein in the structural formula, R is C6-C12 alkyl. According to the preparation method, 2-alkylpyrrolo[3,4-c]pyrrole-1-3(2H, 5H)-diketone is taken as a main body, and chromophoric groups, indole, are respectively introduced into symmetrical positions on two sides of pyrrole, and thereby the organic light-emitting compound is finally obtained. The organic light-emitting compound has a light-emitting characteristic in an organic solvent, wherein the fluorescence intensity is further improved after anions are introduced into a system; the organic light-emitting compound can be applied tothe fields of light-emitting devices, laser dyes, fluorescence sensitivity, anti-counterfeiting technologies, fluorescence imaging, biomedical analysis and the like.

The invention relates to a thiophene [3,4-b] thiophene panchromatic fluorescent dye as well as a preparation method and an application thereof. The invention provides a thiophene [3,4-b] thiophthene aryl substituted compound which has a panchromatic luminance property and high fluorescence quantum yield in a strongly aprotic solvent, and further provides a preparation method which is capable of synthesizing the compound greenly and efficiently through a one-step reaction, is low in production cost and has industrial production potential. The method comprises a C-H direct arylation reaction and a Suzuki-miyara or Stille cross coupling reaction; and meanwhile the compound can be applied to medicinal diagnosis, disease treatment, luminescent layers of white light or organic light emitting diodes, and the like.

A novel 1, 8-anhydride naphthalene derivative is developed, and the 1, 8-anhydride naphthalene derivative shows opening fluorescence response to formaldehyde in both a solution and a gas phase. In the presence of formaldehyde, a fluorescence response opening phenomenon of the reacted 1, 8-anhydride naphthalene derivative is observed at 520 nm. Through calculation, the detection limit of the probe with the fluorescence opening effect is 38.0 [mu] M.

The invention discloses a self-pumping optical parametric oscillation matrix crystal. According to the preparation of the crystal, a rare earth doped laser crystal and a MgO: PPLN nonlinear optical parametric oscillation crystal are combined to form a Re: Mg: LN composite crystal; ferroelectric domain periodic inversion treatment is performed on the Re: Mg: LN composite crystal. According to the periodically polarized double-doped lithium niobate crystal, the laser crystal and the nonlinear crystal are combined into the multifunctional composite crystal, and therefore, the light path of an intermediate-infrared laser is simplified, the size of the intermediate-infrared laser is reduced; and the periodically polarized double-doped lithium niobate crystal not only has the nonlinear optical parametric oscillation effect of the MgO:PPLN, but also has the light-emitting characteristic of the rare earth laser crystal.

The invention provides a novel YAG: Ce/LTA fluorescent powder/glass composite material (phosphorin glass, PiG) and a preparation method thereof, the PiG material is mixed according to the mass ratio of YAG: Ce = x LTA, and x is greater than or equal to 0.01 and less than or equal to 100. The preparation method of the PiG material comprises the following steps: mixing YAG: Ce fluorescent powder andthe LTA molecular sieve according to a certain mass ratio; then adding absolute ethyl alcohol, and fully and uniformly mixing through a planetary ball mill; drying an obtained slurry to obtain powder, directly putting the powder into a box-type furnace for sintering, heating the LTA molecular sieve at high temperature to form glass, and uniformly embedding YAG: Ce fluorescent powder into the glass to obtain the YAG: Ce/LTA PiG material. The preparation method disclosed by the invention has the advantages of simple preparation process, low cost, no toxicity in the preparation process and the like, and the PiG material prepared by the preparation method disclosed by the invention has excellent chemical and physical stability, excellent heat resistance, excellent moisture resistance and relatively high luminous efficiency.