97results about How to "Improve bonding performance" patented technology

The invention discloses an ultrafine grain wolfram carbide (WC)/ cobalt hard alloy containing rare-earth hexaboride and a preparation method thereof and belongs to the field of high-performance powder metallurgy materials. The hard alloy comprises the following components in percentage by weight: 0.1 to 2 percent of the rare-earth hexaboride, 0.1 to 0.6 percent of chromium carbide, 0.1 to 0.4 percent of vanadium carbide, 5 to 15 percent of cobalt powder, and the balance of wolfram carbide powder. The preparation method comprises the following steps of: weighing the wolfram carbide powder, the cobalt powder, the rare-earth hexaboride powder, the chromium carbide powder and the vanadium carbide powder with certain granularity in percentage by weight; uniformly mixing the powder by ball milling; pressing the mixture by a mold pressing process to form a green ware body in a certain shape; degreasing the green ware body and sintering the degreased green ware body in a high-temperature low-pressure sintering furnace; and cooling the obtained product along with the furnace to obtain the ultrafine grain wolfram carbide/cobalt hard alloy. The hard alloy has the advantages of rational proportion of the components, simple production process, effective reduction in the grain size of the WC in the hard alloy and improvement on the hardness and fracture toughness of the hard alloy by adulterating the rare-earth hexaboride to inhibit the growth of the wolfram carbide grains in the sintered hard alloy, achievement of high hardness and fracture toughness and application in industrial production.

The invention discloses a room-temperature vulcanized one-component dealcoholized silicone rubber sealant and a preparation method thereof. The sealant comprises the following components in parts by weight: 100 parts of (A) alpha, omega-dihydroxyl polydimethylsiloxane, 10-30 parts of (B) simethicone, 5-10 parts of (C) a cross-linking agent, 1-5 parts of (D) a silane coupling agent, 50-150 parts of (E) reinforcing filler, 0.5-3 parts of (F) a catalyst and 0.5-2 parts of (G) storage stabilizer. Due to addition of the silane coupling agent containing various active functional groups, the defect that common dealcoholized silicone rubber sealant cannot have good adhesion performance and good storage performance at the same time is overcome, and storage performance is not affected when the adhering performance is improved. In addition, as the sealant uses the titanate catalyst with low yellowing property, the sealant has excellent yellowing resistance, the defect that common dealcoholized silicone rubber sealant is easy to yellow is overcome, and the sealant provided by the invention can be widely applied to adhering and sealing in the industries such as electronics, automobiles and home appliances.

The invention discloses a new method for treating the surface of dental zirconia-based ceramic and improving the bonding performance of the ceramic. The new method comprises the following steps: without sand-blasting treatment, immersing the dental zirconia-based ceramic into an acid-mixed solution serving as etching agent for 20-30 minutes at the temperature of 100 DEG C, and etching to realize surface roughening. The new method has the advantages that the surface roughness of the dental zirconia-based ceramic is effectively improved, the bonding strength of the dental zirconia-based ceramic with resin and veneering ceramic is improved, the microcrack is not generated in the ceramic, and the influence on long-term mechanical strength is avoided; according to the surface roughening method, high temperature or stress is not involved, so that a low-temperature attenuation effect of the dental zirconia-based ceramic is reduced, the long-term mechanical performance of a dental all-ceramic restoration body is not influenced, and the clinical service life is guaranteed. Therefore, the obtained roughened surface of the dental zirconia ceramic has clinical application value.

A preparation method of a polyurethane/epoxy resin composite material comprises a step of adding a polyether polyol into a reactor to be treated, adding a diisocyanate and heating, controlling the mass content of free -NCO, and obtaining an A component after vacuum deaeration; a step of heating a binary aromatic amine, adding dropwise the liquid epoxy resin and heating again, and reacting to obtain a B component; and a step of stirring and mixing uniformly the A component and the B component stoichiometrically, and reacting and curing to obtain the polyurethane/epoxy resin composite material. When being used as an adhesive, the composite material has good bonding strength, high-temperature resistance, low-temperature resistance, impact resistance and flexibility. The composite material has a wide application scope, and can be prepared into a high-hardness polyurethane elastomer composite material to be applied.

The invention discloses a self-adhesive flame retardant butyl rubber damping material and a preparation method thereof. The rubber material is prepared from the following components in parts by weight: 100 parts of butyl rubber, 50 to 400 parts of damping and adhesion aids, 50 to 400 parts of tackifying resin, 100 to 800 parts of compound flame retardant and 0 to 1000 parts of filler. The self-adhesive and flame retardant butyl rubber damping material obtained by the invention has the characteristics of wide-temperature-range damping, high damping peak, and excellent self-adhesive property and flame retardant property. According to the self-adhesive flame retardant butyl rubber damping material and the preparation method thereof, the self-adhesive flame retardant butyl rubber damping material is prepared by using a simple blending method through the proper formula adjustment; the method has the advantages of simple and convenient method, low cost, simple industrialization, high production efficiency and good industrial application prospect.

The invention discloses a preparation method of a fiber reinforced resin composite material. The preparation method comprises the following steps: subjecting the fibers, which have been subjected to a surface oxidization treatment, to a coating treatment; subjecting the fibers, which have been subjected to the coating treatment, to three-dimensional knitting according to a required shape; placing the knitted three-dimensional textile into a mould, pouring thermosetting resin into the mould, and carrying out low-temperature injection moulding. According to the preparation method, a three-dimensional textile is taken as the skeleton, and thermosetting resin is taken as the filling material. The preparation method is characterized in that the processing temperature is low (not higher than 160 DEG C), the obtained three-dimensional composite material has a high mechanical strength in the vertical direction and in the horizontal direction; and moreover, due to the existence of the three-dimensional textile framework, the impact-resistant and anti-knock performances of the composite material are greatly improved. A fiber reinforced resin composite material prepared by the provided preparation method is also disclosed. The composite material can be used to produce the battery tank of electric vehicle.

The invention discloses modified phenolic resin for a bamboo structure material, which comprises 35 to 85 percent of phenolic aldehyde stock solution, 0 to 40 percent of aqueous solution of formaldehyde, 7 to 20 percent of alkali aqueous solution and 0.5 to 5 percent of resorcinol. The phenolic aldehyde stock solution is mixed solution prepared from 2 to 85 weight percent of phenol and 15 to 98 weight percent of formaldehyde. A preparation method for the modified phenolic resin comprises the following steps of: adding the phenolic aldehyde stock solution into a reaction kettle, adding the aqueous solution of formaldehyde into the reactor for the first time, adding partial alkali aqueous solution into the reactor, heating the solution to between 30 and 70 DEG C, and reacting the solution for 30 to 90 minutes; adding the aqueous solution of formaldehyde into the reactor for the second time within an additional proportion range, uniformly heating the solution to between 70 and 98 DEG C, and reacting the solution for 20 to 90 minutes with heat preservation; adding the alkali aqueous solution into the reactor within an additional proportion range, and reacting the solution; adding a resorcinol modifying agent into the reactor till the viscosity of the tested glue solution is 15 to 700mPa.s; and cooling the reaction product to below 40 DEG C, and discharging the product. The gluing performance of the resin on the bamboo material is remarkably improved by adding the resorcinol modifying agent to modify the phenolic resin, and the adhesive has low free formaldehyde content and has the characteristics of energy conservation and environmental protection.

The invention discloses a one-component deoximation type room-temperature vulcanized silicone rubber sealant and a preparation method thereof. The sealant is prepared through the following steps: mixing alpha,omega-dyhydroxylpolydimethylsiloxane and a silane coupling agent at a high temperature, terminating alpha,omega-dyhydroxylpolydimethylsiloxane with the silane coupling agent, and then adding dimethyl silicone oil, a de-ketoxime type cross-linking agent, a filling material and a catalyst. Compared with a traditional deoximation type sealant, the sealant has excellent adhesive properties for stainless steel, aluminium alloy, magnesium alloy, PPO, PC, PVC, PMMA, ABS, PET and the like, and can be used for adhesion and sealing in the industries of electronics, automobiles, household appliances, photovoltaic modules and the like. Besides, the sealant has excellent water resistance and especially has a high strength retention rate under high-temperature and high-humidity conditions.

The invention discloses a method for preparing a clutch facing through taking water soluble phenol-formaldehyde resin as an adhesion agent. The method adopts the water soluble phenol-formaldehyde resin which is multiply modified by polyvinyl alcohol, nanoscale attapulgite and micron-order copper powder as the adhesion agent, the water soluble phenol-formaldehyde resin, a friction performance conditioning agent and water are mixed to produce slurry, fibers are soaked in the slurry, are dried and are wound to form a parison, the parison is then subjected to hot-press forming to form the facing, grinding and drilling are carried out after the thermal treatment, the clutch facing is obtained. The modified adhesion agent has high solubility, cohesiveness, toughness, heat resistance, thermal fading resistance and abrasion resistance; and the clutch facing which is produced through the adhesion agent is low in cost, green and environment-friendly, can bear impact force during the processing and using processes, cannot crack and has high thermal stability, high and stable friction coefficient and low abrasion resistance.

The invention discloses a respirable high-flame-retardance outer-wall facing material, which comprises redispersible latex powder, an organic-silicon water repellent, methylcellulose ether, a defoaming agent, an air-entraining agent, lignocellulose, a thixotropic lubricant, silicate cement, heavy calcium powder, fly ash, calcium hydroxide, starch ether, calcium formate and colored quartz sand. The respirable high-flame-retardance outer-wall facing material has the advantages of reasonable proportion, energy saving and environmental protection, and not only are the quality and the service lifeof an outer-wall heat-preserving system ensured, and heat-preserving heat-absorbing heat-storing performances are enhanced, but also the service life of a building wall body is greatly prolonged.

The invention discloses a type of solar cell back panel material and a preparation method and a product thereof. The solar cell back panel material contains modified PVDF (Polyvinylidene Fluoride)and modified PET (polyethylene terephthalate); the modified PVDF comprises 70-80 parts of PVDF, 5-20 parts of modifying polymer resin |, 0.5-5 parts of inorganic filling | and 0.1-0.2 part of modifier in parts by weight; and the modified PET comprises 70-80 parts of PET, 5-15 parts of modifying polymer resin II, 0.5-10 parts of inorganic filling II and 0.1-0.2 part of modifier in parts by weight. In the preparation method disclosed by the invention, modifying resins, organic fillings and modifiers are used to respectively modify the PET and the PVDF so that the structure formed by coextrusion of the PET and the PVDF can have better mechanical property; the bonding performance between layers is improved; and the material is weather-resistant and can resist moisture and oxygen. The service life of the solar cell back panel made of the material is guaranteed to be more than 25years.

The invention discloses an addition type liquid silicone rubber tackifier, as well as a preparation method and application thereof. The preparation method comprises the following steps of step 1, mixing 80-120 parts of an acrylic compound containing phenyl groups and ester groups with 0.006-0.06 part of a platinum catalyst solution of which the mass concentration is 0.05-0.5% to obtain a mixture, and preheating the mixture at certain temperature environment for some time so as to obtain mixed liquor for standby application; step 2, adding 100-150 parts of D4H containing silicon-hydrogen bonds, 100-200 parts of toluene and 0.12-0.50 part of p-hydroxyanisole to a round-bottomed flask, and raising temperature while stirring; step 3, when the temperature in the round-bottomed flask reaches to 40-90 DEG C, dropwise adding the mixture in the step 1 to the round-bottomed flask; step 4, after the mixture is dropwise added, controlling the reaction temperature to 60-100 DEG C, and performing a reaction for 1-5h; and step 5, after the reaction is completed, cooling reaction fluid to room temperature, then adding activated carbon for adsorbing residual platinum catalysts, and finally performing sucking filtration and rotary evaporation on the reaction fluid so as to obtain the tackifier. According to the addition type liquid silicone rubber tackifier, as well as the preparation method and application thereof disclosed by the invention, a small quantity of the tackifiers are added to shaping liquid silicone rubber, so that the bonding failure between the shaping liquid silicone rubber and PC plastic cement reaches to 100% cohesive failure.

The invention relates to a polyimide adhesive and a preparation method thereof and belongs to the technical field of adhesives. The polyimide adhesive solves the problem that the polyimide adhesive ata temperature of greater than 350 DEG C has poor thermal instability and low adhesive properties. The polyimide adhesive is prepared from a polyimide adhesive prepolymer through curing. The preparation raw materials of the polyimide adhesive prepolymer comprise aromatic diamine containing a biphenyl structure, aromatic diamine containing a siloxane structure, aromatic dianhydride and a blocking agent. The preparation method comprises dissolving the polyimide adhesive prepolymer in an organic solvent to obtain a homogeneous solution, coating the surface of the adherend with the homogeneous solution, removing the organic solvent, carrying out curing to obtain the polyimide adhesive and bonding the adherend The polyimide adhesive can be used for the bonding of high temperature resistant parts in the fields of aviation, aerospace, precision machinery and petrochemical industry.

The invention relates to a phenolic resin for coating abrasive tools and a preparation method thereof. The preparation method comprises the following steps: firstly preparing a water soluble phenolic resin through the addition polycondensation reaction of a compound of phenol, aldehyde and the like in the presence of an alkali catalys, then mixing the prepared phenolic resin with a high-strength active phenolic resin at 45-60 DEG C to constitute a major ingredient, stirring for about 10-35 minutes; cooling to 30-40 DEG C, adding at least one inorganic active additive in the major ingredient and stirring for 5-30 minutes; slowly adding at least one inorganic filler and rapidly stirring for 10-40 minutes; reducing the temperature below 30 DEG C, finally adding at least one thermal-plasticity resin to mix with a mixed solvent, mixing at high speed to carry out physical-chemical reaction, controlling the viscosity at 2000-2500 cps/25 DEG C, and filtrating and discharging. The modified phenolic resin reduces the production cost and improves the adhesive bonding performance of products as well as the heat resistance performance, the wear resistance performance and the impact resistance performance of the products.

The invention provides a preparation method of a special low-smoke halogen-free flame retardant cladding layer material for a butterfly-shaped introduction cable of an access network. The preparation method comprises the following steps of: (1) proportioning the components of the cladding layer material in parts by weight: 5-15 parts of high-fused ethylene-vinyl acetate copolymer, 5-15 parts of low-fused ethylene-vinyl acetate copolymer, 5-15 parts of polyethylene, 55-65 parts of a fire retardant, 10-20 parts of compatilizer, 2-3 parts of ultra-high molecular weight silicone, and 0.3-0.8 part of anti-oxygen; adding the components in a milling machine for mixing for 8-12 minutes, and discharging when the mixing temperature reaches 135-150 DEG C; (2) feeding the mixture into a double-screw-rod extruding machine, plastifying through double screw rods, and pelleting through a single screw rod, wherein for all the sections of the screw rods, a feeding section has a temperature of 90-110 DEG C, a transportation section has a temperature of 120-130 DEG C, a plastifying section has a temperature of 130-140 DEG C, and a machine head has a temperature of 135-145 DEG C; and pelleting is carried out by using an air cooling and hot cutting process; and finally drying the made particles to obtain a finished product. The cladding layer material manufactured by the invention is used as a special material of a rubber-insulated optical cable, and has the advantages of good material flowing property, good binding property and good product quality. Furthermore, the optical attenuation degree can be greatly reduced.

The invention discloses an overlapping structure and a construction method of a waterproof coiled material, and belongs to the technical field of waterproof layer construction. The overlapping structure includes two waterproof rolls whose ends are overlapped with each other, wherein one end of the waterproof roll is in an asymmetric concave shape, and the end of the other waterproof roll is in a corresponding convex shape. The overlapping parts of the waterproof membrane are connected by an adhesive layer, and a waterproof strengthening coating is also provided at the seam of the surface of the waterproof membrane. The construction method of the lap joint structure is as follows: clean up the lap joint ends of the two waterproof rolls and remove the protective film; evenly coat the contact surfaces of the two lap joint ends with adhesive epoxy resin/graphene nanocomposite material ;Tightly combine the two overlapping ends, press for 2~5 minutes, and then apply a strong waterproof coating on the seam of the upper surface of the waterproof membrane, and let it dry. The overlapping structure can greatly improve the firmness of the overlapping structure of the waterproof coiled material, avoid water seepage and leakage, and has a good application prospect.

The invention discloses a display panel and its manufacturing method and a display device, and belongs to the technical field of display. The display panel includes a first substrate and a second substrate which are bonded through a box sealing adhesive; a super hydrophobic layer is arranged between the first substrate and the box sealing adhesive, and/or a super hydrophobic layer is arranged between the second substrate and the box sealing adhesive; the super hydrophobic layer is formed by the reaction of reactive double-bond siloxane with photopolymerizable monomers in the light condition. By the arrangement of the super hydrophobic layer, water vapor is prevented from entering in the display panel, the waterproof performance of the display panel is improved, and even in a high-temperature high-humidity environment for a long time, the display panel can still work normally.

The invention discloses an optimized stack type CIS silicon wafer bonding method. According to the technical scheme of the invention, the bonding of a stack type CIS logic silicon wafer and a pixel silicon wafer is optimized based on the combination adjustment on the copper-electroplating boundary value between the stack type CIS logic silicon wafer and the pixel silicon wafer and the trimming on the crystal boundary of the pixel silicon wafer. In this way, the height difference phenomenon between the boundary region of the logic silicon wafer and a normal region is relieved. Meanwhile, during the bonding process, the pixel silicon wafer is kept away from the region of the logic silicon wafer with a larger height difference, so that no void defect occurs at the crystal boundary interface of the two silicon wafers during the bonding process. Therefore, the bonding performance between the logic silicon wafer and the pixel silicon wafer is optimized. The machinability of the subsequent silicon wafers is improved. Moreover, the stability of the stack type CIS chip manufacturing process is ensured, and the yield is improved.

The invention relates to a waterborne epoxy modified phenolic resin emulsion, a preparation method thereof and an adhesive prepared by using same as a raw material and aims at solving the problem that an existing waterborne epoxy modified phenolic resin emulsion is large in brittleness and low in adhesion strength after being cured. The waterborne epoxy modified phenolic resin emulsion consists of thermosetting phenolic resin, epoxy resin, common solvent, protective colloid, a non-ionic emulsifier and deionized water. The preparation method comprises the steps of solving the thermosetting phenolic resin and the epoxy resin in the common solvent and perform even stirring to obtain a resin solution; solving the protective colloid and the non-ionic emulsifier in the deionized water to obtain an emulsion water solution, mixing the resin solution and the emulsion water solution and performing emulsification and stirring to obtain the waterborne epoxy modified phenolic resin emulsion. The adhesive consists of the waterborne epoxy modified phenolic resin emulsion, a curing agent, an inorganic filler, a coupling agent and an inhabitation corrosive. The waterborne epoxy modified phenolic resin emulsion is small in brittleness and high in adhesion strength after being cured and is used for the field of adhesives.

The invention discloses odorless environment-friendly dried diatom ooze powder and a preparation method thereof. The dried diatom ooze powder comprises the following components in parts by mass: 3-7 parts of odorless redispersible latex powder, 20-40 parts of diatomite, 1-6 parts of nanometer titania, 1-30 parts of titanium dioxide, 10-35 parts of ash-calcium, 10-30 parts of coarse whiting, 5-45 parts of quartz powder, 10-30 parts of kaolin, 0.3-1 part of hydroxy propyl methyl cellulose and 0.1-0.5 part of starch ether. The components are uniformly mixed to obtain the odorless environment-friendly dried diatom ooze powder. According to the odorless environment-friendly dried diatom ooze powder disclosed by the invention, the odorless redispersible latex powder is added to serve as a main adhesive substance and achieves a synergistic effect with the other components, so that the dried diatom ooze powder is odorless, has extremely low harmful substance content, and has high adhesive property, excellent low-temperature film-forming performance and the like.

The invention discloses an adhesive-type barrier film graphical treatment method, a display panel and a display device, so as to solve the problem that in the prior art complete separation of an adhesive-type barrier film which is to be removed in the graphical treatment process and a bottom substrate and no damage to other components of the bottom substrate cannot be guaranteed during graphical treatment of the adhesive-type barrier film. The adhesive-type barrier film graphical treatment method comprises: attaching an adhesive-type barrier film on a base substrate; precutting the adhesive-type barrier film, according to the trajectory of separation of the adhesive-type barrier film, which should be kept during graphical treatment, and the adhesive-type barrier film which should be removed during graphical treatment; carrying out fixed-point heating of the adhesive-type barrier film to be removed, so as to reduce the adhesion of the part of the adhesive-type barrier film; removing the adhesive-type barrier film at the fixed-point heating position, thereby completing the graphical treatment.

The invention discloses a high-strength straw brick and a preparation method thereof, and relates to the technical field of straw construction materials. The high-strength straw brick is prepared fromthe following raw materials in parts by weight: 60-80 parts of modified straw, 20-30 parts of cement, 7-15 parts of modified urea formaldehyde resin, 7-15 parts of stone powder, 2-5 parts of ceramsite, 0.05-0.5 part of ammonium chloride and 0.5-2 parts of polyphenylene sulfide powder. The preparation method of the high-strength straw brick comprises the following steps: mixing and uniformly stirring the modified straw, the stone powder, the ceramsite, the polyphenylene sulfide powder and the cement; adding a right amount of water and performing uniform stirring; adding the modified urea formaldehyde resin and performing uniform stirring; adding the ammonium chloride and performing uniform stirring to obtain mixture; and paving the mixture into a mold, and performing press forming, condensation curing, solidification demolding and airing to obtain the high-strength straw brick. The brick prepared by adopting heat-insulated straw as a substrate bonded with the cement and the modified urea formaldehyde resin has high compactness, good strength and water resistance and good heat insulation performance, anti-seismic performance, sound insulation performance, anti-cracking performance and the like, and can replace a common brick to serve as a construction material, thereby reducing the construction energy consumption.

The invention discloses a hot-melt adhesive for glass. The hot-melt adhesive for glass is prepared from the components in the following parts by weight: 100 parts of EVA (ethylene-vinyl acetate copolymer), 10-20 parts of chloroprene rubber tackifying resin, 15-20 parts of paraffin, 10-30 parts of polyvinyl chloride resin, 10-15 parts of light calcium carbonate, 0.1-0.2 part of antioxidant 1010, 0.1-0.3 parts of antioxidant 300, 0.1-0.2 part of antioxidant DTDP, 5-8 parts of dioctyl phthalate, and 1-2 parts of trioctyl trimellitate. The preparation method comprises the following steps of: preparing the chloroprene rubber tackifying resin at first, and then mixing the chloroprene rubber tackifying resin with the other raw materials, extruding via an extruder, cooling and slicing. By adding the home-made rubber tackifying resin in the formula, the prepared hot-melt adhesive disclosed by the invention is enhanced in adhesive performance and high-temperature-resistant performance, strong in anti-ageing capacity, and good in toughness.

The invention provides a double-component silicone rubber sealing agent for automobile lamp assembling sealing. The double-component silicone rubber sealing agent comprises a component A and a component B, wherein the component A is prepared by, by weight, 100 parts of alpha, omega-dihydroxy polydimethyl siloxane, 0-20 parts of dimethyl silicone oil, 70-120 parts of calcium carbonate and 0-10 parts of white carbon black; the component B is prepared by, by weight, 20-100 parts of color paste, 8-15 parts of crosslinking agent, 5-12 parts of coupling agent, 0-20 parts of white carbon black and 0.5-3 parts of catalyst.

The invention discloses a water-based polyvinylidene fluoride coating slurry, a battery diaphragm and a preparation method of the slurry. According to the water-based polyvinylidene fluoride coating slurry, an organic polymer with the molecular weight being larger than or equal to 200,000 is adopted as a binder, and an organic polymer with the molecular weight being not larger than 100,000 is adopted as an adhesion promoter. The high-molecular-weight organic polymer binder and the low-molecular-weight organic polymer adhesion promoter are combined for use, so that the bonding strength of the water-based polyvinylidene fluoride coating slurry can be improved; and moreover, the original advantages of low cost, small pollution, low air permeability increment and the like of the water-based polyvinylidene fluoride coating slurry are kept.

The invention discloses a preparation method of lithium titanate negative-electrode slurry. The preparation method is characterized in that malonic acid is added into the lithium titanate negative-electrode slurry raw material. The lithium titanate negative-electrode slurry is prepared from the following materials in percentage by weight: 85-91% of lithium titanate, 3-5% of PVDF, 4-6% of a conducting agent and 2-4% of malonic acid. The preparation method comprises the following steps: baking lithium titanate and the conducting agent at 120-140 DEG C for 4-5 hours, and cooling to 40-55 DEG C in dry air after baking; mixing lithium titanate, PVDF and the dry conducting agent powder for 1-2 hours, then adding the obtained mixture into solvent NMP by 2-4 times at the time intervals of 20-30 minutes, stirring for 4-5 hours, then adding malonic acid, stirring further, vacuumizing, stirring for 1-2 hours, and screening by a sieve of 150-180 meshes so as to obtain the lithium titanate negative-electrode slurry.

The invention provides a preparation method of an eco-friendly glass fiber wall cloth. Glass fibers are modified and combined with a specially-produced coating. After glass fiber modification, an aluminum-magnesium layer is arranged on the surfaces of the fibers so that combination performances of the fibers and the coating are improved and flame resistance is substantially improved. Through use of silane-modified beta cyclodextrin and a silane coupling agent, bonding properties of the coating and the glass fibers are improved. Through use of micron-order magnesium-aluminum hydrotalcite, flame retardation performances and UV resistance are improved. Through use of titanium dioxide, antibacterial effects are obtained and UV-resistant and shielding agent effects are obtained.

The invention discloses a method for adhering and combining a zirconia prosthesis and a natural tooth. The method has the advantages that an existing sand blast process for processing is not used, thesurface of dental-department zirconia ceramic is milled, material mechanical damage is avoided, micro-ornamentation is formed on the surface of the dental-department zirconia ceramic to perform surface roughening under the condition that the later mechanical strength of the ceramic is unaffected so as to increase the specific surface area of the zirconia ceramic, and the zirconia prosthesis and the natural tooth are adhered and combined by using resin as the adhesive through methods such as surface processing, coating and novel sand blast.

The invention discloses a construction technology of insulation heat preservation layers of deep cooling pipeline connecting equipment. The construction technology comprises the following steps that firstly, according to the equipment size and requirement, heat preservation blocks are prefabricated, and then, the heat preservation blocks are longitudinally bonded on the surface of the equipment at intervals; foam is sprayed on the surface of the equipment between the heat preservation blocks for priming, when the thickness of priming reaches 50% of the total thickness, metal outer protecting layers are installed on the exterior of the equipment from bottom to top in sequence, and the foam is injected and molded in interior spaces as every layer is installed until the layer is installed at a sealing head of the equipment; and finally, foam spraying is conducted on the sealing head, and then the metal protecting layers are installed to achieve whole installing completing. By means of the construction technology of the insulation heat preservation layers of the deep cooling pipeline connecting equipment, heat preservation processing on the connecting equipment is achieved, and the whole heat preservation performance is ensured.

The invention relates to the technical field of LED packaging, and particularly relates to an ultraviolet-curing composition for LED packaging. The ultraviolet-curing composition comprises the following components: a polyurethane-acrylate-epoxy resin photosensitive prepolymer, epoxy resin acrylate, a light initiator, a flatting agent and an active diluent. According to the ultraviolet-curing composition for LED packaging disclosed by the invention, a certain amount of epoxy resin acrylate is added in the composition, so that the adhesive property of the composition after being cured is effectively improved; the adhesive has the advantages of excellent high and low-temperature resistance, high aging resistance and transparency, good formability, good bonding property, mild curing conditions, and the like.