47 results about "Barium glass" patented technology

The invention relates to a light-cured composite resin for an oral cavity by using single crystal diamond as a filler, which belongs to the field of a medical oral cavity material. The resin comprisesThe invention relates to a light-cured composite resin for an oral cavity by using single crystal diamond as a filler, which belongs to the field of a medical oral cavity material. The resin comprisesonal medical standard that flexural strength value of the composite resin should be equal to or greater than 50 MPa, even can satisfy the requirement for the strength (greater than 80 MPa) of occlustional medical standard that flexural strength value of the composite resin should be equal to or greater than 50 MPa, even can satisfy the requirement for the strength (greater than 80 MPa) of occlusal restoring materials.al restoring materials.a resin matrix and the filler, wherein the filler comprises coupling barium glass powder and coupling diamond. The composite resin is characterized in that the coupling diamond comprises coupling sin a resin matrix and the filler, wherein the filler comprises coupling barium glass powder and coupling diamond. The composite resin is characterized in that the coupling diamond comprises coupling single crystal diamond which accounts for 15-25 percent of the total weight of the composite resin, coupling glomerocryst diamond which accounts for 0-1 percent of the total weight of the composite resingle crystal diamond which accounts for 15-25 percent of the total weight of the composite resin, coupling glomerocryst diamond which accounts for 0-1 percent of the total weight of the composite resinand coupling nanometer diamond which accounts for 0-1 percent of the total weigh of the composite resin. The single crystal diamond is added as the functional filler, so that the flexural strength an and coupling nanometer diamond which accounts for 0-1 percent of the total weigh of the composite resin. The single crystal diamond is added as the functional filler, so that the flexural strength and the micro hardness of the prepared composite resin are observably increased, the maximum flexural strength value of the composite resin, which can reach 112.5MPa, can satisfy the requirement in a nad the micro hardness of the prepared composite resin are observably increased, the maximum flexural strength value of the composite resin, which can reach 112.5MPa, can satisfy the requirement in a nati

The invention discloses a PEEK false tooth composite. The PEEK false tooth composite is prepared from, by weight, 110-150 parts of polyether-ether-ketone, 10-20 parts of nano calcium silicate, 8-12 parts of hydroxyl hydroxyapatites, 4-8 parts of barium glass short fibers, 15-22 parts of organic solvent, 8-18 parts of refined paraffin, 1-4 parts of co-binding agent, 8-12 parts of binder, 2-6 parts of antibacterial agent, 6-10 parts of carbide and / or 8-15 parts of oxide. The invention further discloses a preparation method of the PEEK false tooth composite. The preparation method includes the steps that firstly, the raw materials of nano calcium silicate, hydroxyl hydroxyapatites, carbide and / or oxide are mixed, the mixture is heated to 150-220 DEG C, the situation is kept for 10-30 min, cooling is carried out, the refined paraffin is added, mixing and stirring are carried out, and after the mixture is crushed ultrasonically, the organic solvent, polyether-ether-ketone, the co-binding agent, the binder and the antibacterial agent are added to be stirred till uniform paste is obtained; finally the barium glass short fibers are added, ball-milling and drying are carried out, and the finished composite powder is obtained.

The present invention relates to a glass frit used in the aluminum paste used to form the aluminum electrode on the back surface of a solar cell, a glass frit manufacturing method, and an aluminum paste. , and will melt at the low temperature necessary for the manufacture of solar cells, etc., and the main components are only vanadium and barium glass frit. The invention provides a glass frit, which is: vanadium V with 55 to 80 mole % 2 o 5 And 15 to 30 mol% of barium BaO as the main material, or 10 to 55 mol% of vanadium V 2 o 5 and 10 to 40 mol% of barium BaO as a main material to produce glass frit by heating molten glass and rapidly cooling the molten glass to form pieces that are pulverized to produce a glass frit that melts below 650°C.

The invention relates to a glass ball, particularly relates to a lead-free potassium barium glass ball and a production process thereof, and belongs to the technical field of glass material. The glass ball comprises the raw materials by the mass percentage: 1.05-1.45% of sandstone, 6.0-10.0% of quartz sand, 8.5-12.5% of bauxite, 10.5-12.50% of limestone, 8.5-10.5% of broken glass, 15.2-16.3% of ascharite, 0.5-1.0% of titanium dioxide, 0.5-2.0% of niobium carbide, 1.52-1.56% of fluorite, 0.45-0.55% of a clarifying agent, and the balance pyrophyllite. While the glass ball is guaranteed to have the advantages of being high in whiteness, glittering and translucent, high in gloss, rich in refractive index, toughness and the like, the chemical stability, the thermal stability and the mechanical strength of the lead-free potassium barium glass ball are improved, and the crystallization tendency of the lead-free potassium barium glass ball is reduced, and the cost of production is greatly reduced.

The invention discloses a dental restoration material for stomatology and a preparation method thereof, and relates to the field of medical materials. The dental restoration material for oral science comprises: base resin, the above-mentioned base resin includes at least one of Bis-GMA and UDMA; filler, the above-mentioned filler includes modified silane coupling agent modified barium glass powder, modified silane coupling At least one of agent-modified micro-silica powder; photoinitiator. The dental restoration material prepared by the present invention has excellent mechanical strength, strong wear resistance, and low polymerization shrinkage; and the water absorption and solubility are significantly reduced, thereby enhancing the service life of the restoration material, reducing its toxicity in use, and reducing the risk of periodontitis Incidence, expanding the scope of use of restorative materials.

The invention provided a method for preparing barium-based glass frit with barium slag. The method comprises the following steps: barium slag is ground, and a barium slag slurry is prepared; the barium slag slurry is subjected to pipeline sulfuric acid leaching; hydrogen sulfide gas produced in the product is absorbed with sodium alkali, such that sodium sulfide is obtained; solid-liquid separation is carried out, and an iron aluminum sulfate water purifying agent is obtained; the solid is washed and dried; the dried solid is added into a glass frit furnace, and is molten in an oxidation atmosphere; the molten glass is subjected to water extraction, such that the barium-based glass frit is obtained. With the method provided by the invention, barium slag utilization rate is improved, and a high-barium glass frit (ceramic glaze material) is obtained. A glass material prepared with the high-barium frit has the advantages of less bubbles, high transparency and bright color, and has functions that cannot be found in common glass.

The invention belongs to the technical field of artificial teeth, and specifically relates to a process and production equipment for making artificial teeth by using PEEK resin composite materials. Put silk and PEEK resin powder into a platinum crucible and heat it up to 350-400°C to a molten state, and inject or press film into a rod of φ3-φ7mm; S2: According to the fine structure of human teeth, use CAD / CAM CNC machine tools to process the rod Processed into artificial teeth; S3: Put the artificial teeth into the ultrasonic cleaning equipment, control the water temperature at 50°C-70°C, and clean for 10-15 minutes; the present invention puts the artificial teeth into the placement grooves on the supporting plate in turn, and the motor The cam is driven to rotate, and through the extrusion between the cam and the bump and the gravity of the guide plate, the guide plate drives the piston and the artificial teeth to vibrate continuously, and each artificial tooth is cleaned separately to prevent a large number of artificial teeth from accumulating together, causing The artificial teeth inside it cannot be cleaned, which improves the cleaning effect of the ultrasonic cleaning equipment.