40results about How to "Avoid miscibility" patented technology

The invention discloses sealant of a liquid crystal panel and a modification method thereof. The sealant comprises modified epoxy resin, wherein the modified epoxy resin is generated by crosslinking and solidifying an isocyanato-terminated trifunctional monomer and an epoxy monomer; the modified epoxy resin has multiple trident long-chain crosslinked structures, each trident long-chain crosslinked structure has three isocyanato groups to flexibly joint one or more molecular groups of the epoxy resin respectively; and the modified epoxy resin is capable of improving surface adhesive property and stress cracking resistant property on a glass substrate and can be effectively prevented from being miscible with a liquid crystal material so as to relatively reduce pollution on the liquid crystal material.

The invention belongs to the field of mechanical engineering sealing, and discloses a novel multi-stage magnetic liquid sealing device. The novel multi-stage magnetic liquid sealing device successfully solves the problem that an existing sealing mode can not avoid mutual dissolution or mutual contamination between magnetic liquid and a liquid medium to be sealed. The device comprises a first-stage seal and a second-stage seal, wherein the first-stage seal is formed by a static ring (4), a pressure control valve (5), a movable ring (6), a spring (7), a spring base (8) and a set screw (9), and the second-stage seal is formed by a left pole shoe (10), a permanent magnet (11) and a right pole shoe (12). The first-stage seal is mainly used for sealing a liquid medium to be sealed in a seal cavity and preventing the liquid medium to be sealed from making contact with magnetic liquid (22), the second-stage seal is mainly used for sealing gas charged into a cavity between the movable ring (6) and the left pole shoe (10), and even when a shaft (21) does not rotate, the novel multi-stage magnetic liquid sealing device can reliably seal the liquid medium to be sealed.

The invention discloses a water-based ceramic material for the inner tank of a stainless steel thermos cup and a preparation method thereof; 4‑5 parts of methyldiethoxysilane, 2‑3 parts of aminopropyltrimethoxysilane, 16‑18 parts of acrylic resin, 17‑19 parts of inorganic pigments, 6‑7 parts of filler, 0.2‑0.3 parts of hydroxy silicone oil , 2.6-2.9 parts of acetic acid, the balance of deionized water; the sol is a mixture of silica sol and zirconium sol with a mass ratio of 2:1 to 3:1. The ceramic coating of the present invention is sprayed on the inner surface of the stainless steel thermos cup, and the coating thickness is 35-40 μm, which can significantly improve the heat preservation effect of the thermos cup. After pouring boiling water for 6 hours, the water temperature can be kept above 65°C; and the ceramic coating Good adhesion to the substrate, even if the stainless steel substrate is not sandblasted, it can achieve a good adhesion effect only after simple grinding.

A method of preparing a film and a light-emitting device are disclosed. The method includes: providing at least one gas-phase source above a substrate, the at least one gas-phase source made of materials comprising a perovskite material; and controlling an evaporation rate of the at least one gas-phase source to form a perovskite film. In the method provided by the present invention, a perovskite light-emitting layer is prepared by gas-phase source evaporation coating without an organic solvent, which avoids miscibility between the organic solvent and other layers and improves compatibility between the perovskite material and other film materials, thereby realizing the low preparation cost and the simple preparation process.

The invention relates to a constant-pressure hydraulic device, in particular to a liquid constant-pressure source device. The liquid constant-pressure source device comprises a surge tank, an oil tank, a hydraulic pump and a control box. A single-chip microcomputer and a power source thereof are arranged in the control box, and an output end of the single-chip microcomputer is connected with an input end of the hydraulic pump. The surge tank comprises an upper tank body and a lower tank body, the upper tank body and the lower tank body are connected together, the upper tank body is communicated with the oil tank through an oil pipe, a liquid storage chamber is formed in an inner cavity of the upper tank body, the lower tank body is communicated with a compressed air source through an air inlet, and an air storage chamber is formed in an inner cavity of the lower tank body. A pressure detection device is mounted on a rubber isolation device which is mounted between the upper tank body and the lower tank body, and an output end of the pressure detection device is connected with an input end of the single-chip microcomputer. Mutual dissolution of liquid and air can be prevented, and instant liquid pressure wave action generated during pressure changes can be eliminated. In addition, the liquid constant-pressure source device has the advantages of high liquid pressure stabilization precision, simple structure, small size and low production cost.

The invention discloses a bimetal liquid fusion covering and die forging turnout sliding table and a manufacturing method of the sliding table. The sliding table comprises a sliding table body, the bottom of the sliding table body is welded to a turnout base plate, the upper portion of the sliding table is provided with an abrasion-resistant plane matched with the bottom of a dust rail in a sliding mode, and the sliding table body comprises a low-carbon-steel welded base and a martensite stainless steel abrasion-resistant layer welded to the welded base in a liquid die forging mode. The contact face of the bimetal liquid fusion covering and die forging turnout sliding table and the dust rail is free of rust, resistant to abrasion, high in hardness and high in shock resistant value. Weldability of the contact portion of the sliding table and the turnout base plate is good. The bimetal liquid fusion covering and die forging turnout sliding table is low in manufacturing cost, long in service life and stable and reliable in work. According to the turnout sliding table produced through the method, metal crystalline grains of the abrasion-resistant layer of the sliding table are fine, the organizational structure is compact, the phenomena of bubbles, loosening and shrinkage do not exist, and the yield of the turnout sliding table produced through the method is high.

The present invention proposes a preparation method of an elastic pressure-sensitive adhesive tape and the elastic pressure-sensitive adhesive tape. The present invention adopts a polyacrylate resin containing carbon-carbon double bonds and a diluted monomer containing carbon-carbon double bonds as the main components of the adhesive, and Microcapsule-like powder components are used, wherein the shell material of the microcapsule-like powder is made of cellulose-based water-soluble polymers, the core material is made of low-boiling alkanes, and the preparation method of UV curing and heating to break the shell is used to obtain its own The adhesive layer has elasticity, and the finished pressure-sensitive adhesive tape is prepared. Compared with the elastic pressure-sensitive adhesive tape in the prior art, the preparation method of the invention has simple preparation process. The pressure-sensitive adhesive tape obtained by the preparation method of the invention breaks through the limitation of traditional foam tapes, and can have good cushioning and compressibility without using foam as a base material.

The invention discloses a device for producing high-purity electronic-scale phosphoric acid. The device comprises an agitating crystallizer, a vacuum pump, an acid discharge pump, an acid adjusting tank and a circulating pump, wherein the agitating crystallizer, the acid discharge pump, the acid adjusting tank and the circulating pump are orderly connected in cycle through a pipeline; the vacuum pump is connected with the lower part of the agitating crystallizer through a pipeline; valves are arranged on all pipelines. The heat exchange rate of phosphoric acid and a medium is improved by adopting agitating crystallization and crystal-melting modes, the crystallization and crystal-melting speeds are improved, vacuum suction filtration is carried out by the vacuum pump, and separation of crystal and liquid phases is more thorough and rapider. Thus, the production cycle of electronic-scale phosphoric acid is greatly shortened, and the production efficiency is greatly improved. Thus, the device is simple in structure, small in floor area, convenient to use, safe and reliable, resources can be utilized in cycle, the production cost is reduced, the industrial production can be achieved, and the product is high in yield, and has good economic efficiency.

The invention discloses a connection structure for welding titanium and copper by using multi-intermediate layer brazing material, which comprises a titanium base material and a copper base material. The structure of the intermediate layer includes a brazing filler metal 1 and a brazing filler metal 2. A refractory metal intermediate layer is arranged between the brazing filler metal 1 and the brazing filler metal 2, and the refractory metal intermediate layer does not melt within the brazing temperature range; the brazing filler metal 1 is located in the titanium base metal. Between the interlayer of the refractory metal and melting at the brazing temperature to realize the diffusion brazing connection; the brazing filler metal 2 is located between the interlayer of the refractory metal and the copper base material, and melts at the brazing temperature to realize the active brazing connection The brazing method comprises the following steps: pre-treatment of the surfaces to be welded of titanium base material and copper base material; pre-treatment of multi-intermediate layer materials; assembly of brazed components; brazing in furnace; solving joints in conventional titanium-copper welding The problem of generating a large amount of brittle intermetallic compounds at the interface leads to a titanium-copper joint without brittle interface reaction products.

The invention provides an electron transport layer inkjet printing ink and a preparation method thereof. The preparation method of inkjet printing ink for electron transport layer of the present invention adopts ionic conjugated polyelectrolyte as solute, alcohol compound as solvent, and obtains an electronic ink suitable for inkjet printing technology by adjusting the proportion, viscosity and surface tension of each component. The inkjet printing ink for the transport layer, the inkjet printing ink for the electron transport layer can meet the process requirements of inkjet printing, realize the inkjet printing method of the electron transport layer, and can avoid the electron transport layer and the adjacent structural layer in the OLED preparation process. The phenomenon of mutual dissolution occurs between them, which is conducive to the realization of the production of all-solution OLED devices. The electron transport layer inkjet printing ink of the present invention is prepared by the above method, can meet the process requirements of inkjet printing, realize the inkjet printing method of the electron transport layer, and is beneficial to realize the production of full solution OLED devices.

The invention discloses a multistage magnetic liquid sealing device for sealing liquid, and belongs to the field of mechanical engineering sealing. The device comprises a first-stage seal formed by a spacing ring (3) and a spiral sealing groove in a shaft (22), a second-stage seal formed by a pressure sensor, a pressure control valve (7), a spring (5), a stationary ring (6) and a moving ring (8), and a third-stage seal formed by a first sealing assembly, wherein the first-stage seal mainly exerts a sealing function on a sealed liquid medium in a sealing cavity; the second-stage seal exerts a static sealing function when the shaft (22) does not rotate, and separates the stationary ring (6) from the moving ring (8) by gas pressure in an operating state and exerts a sealing action on the sealed liquid medium in the sealing cavity to allow the sealed medium to be out of touch with magnetic liquid (23); and the third-stage seal exerts a sealing function on the gas charged into a cavity between the stationary ring (6) and a left pole piece (10). The device successfully solves the problem that the conventional sealing form cannot avoid mutual dissolution or cross contamination of the magnetic liquid and the sealed liquid.

The invention provides a method for preparing a photodiode, including S101: forming an oxide layer on a substrate; S102: forming two first grooves separated by an oxide layer, and forming a first implantation region at the bottom of the two first grooves; S103: Form a first opening, two second trenches, and a second opening between the two second trenches on the substrate, and implant ions into corresponding positions to form a second implantation region, a third implantation region, and a fourth implantation region area; S104: remove the oxide layer, and form a dielectric layer on the substrate; S105: etch the dielectric layer on the first implantation region and the third implantation region to form a contact hole, and then form a metal layer in the dielectric layer and the contact hole ; S106: firstly apply a photoresist layer on the upper surface of the metal layer and both sides of the metal layer, etch and remove the dielectric layer not covered by the photoresist layer, then remove the photoresist layer, and finally obtain a photodiode. The present invention also provides a photodiode with improved surface state and reliability.

The invention discloses a method for purification treatment of sucralose water crystallization mother liquor. According to the method, not only can residues of an impurity removing solvent in a sugar water layer be reduced, but also removes low-polarity and high-polarity impurities in the sucralose water crystallization mother liquor can be removed by virtue of stepwise extraction, so that the purity of a sucralose crude product obtained after impurity removal is greatly improved; and meanwhile, according to the technological process of the purification treatment of the method disclosed by the invention, the recovery rate of sucralose can be effectively increased, and losses and wastewater discharge amount can be reduced, and the technological process is suitable for industrial actual production.