11results about How to "Stable material" patented technology

The utility model belongs to the technical field of water treatment relates to a kind of domestic ceramic membrane purifier, including filter element, filter drum and two end caps, and the end cap of two ends is respectively provided with water inlet and water outlet and is connected with the porous channel in filter element, water outlet connected with the water purification channel outside filter element is provided on the filter drum, the both ends of the filter drum are fixed with connecting ring, the inner wall end portion of the connecting ring away from filter drum is provided with first taper surface, the inner wall end portion of the end cap close to filter drum is provided with second taper surface, the first taper surface, second taper surface and filter element outer wall form sealed cavity, O-ring is provided in the sealed cavity, the contact surface of O-ring and first taper surface, second taper surface and filter element outer wall all form sealing structure.The domestic ceramic membrane purifier provided by the utility model has the advantages of simple structure, small pollution, high flux, long service life and low use cost.

The application provides a kind of fabric reinforced polymer composite material and preparation method, the method is first by hydroentanglement process thermoplastic fiber web is fixed on the two sides of fabric, and hydroentanglement makes thermoplastic fiber in thermoplastic fiber web and fabric interpenetration and hold together, and combine firmly;After drying, the polymer surface film is covered on the two sides of base cloth layer, and the polymer surface film is combined with base cloth layer by heating, because the surface of base cloth layer is the same material as the composition of polymer surface film, the material remains consistent, it is convenient for hot forming fusion, thereby increasing the peel strength, and improving the adhesion strength of composite material coating.Moreover, when the hydroentanglement medium is polymer solution, the polymer solution will remain in the pores of fabric and thermoplastic fiber web during the hydroentanglement process, and when subsequent drying and heating, the polymer in the pores will be integrated with the thermoplastic fiber web, thereby further enhancing the peel strength.

The utility model discloses an automobile carpet fixing device, which relates to the technical field of automobile interior accessories and comprises a fixing mechanism mounted in an automobile base through a mounting mechanism. The fixing mechanism comprises a steel needle and a clamping seat, the steel needle is fixedly mounted on the automobile carpet, the clamping seat is detachably mounted on the automobile base through the mounting mechanism, and a mounting part used in cooperation with the steel needle to fix the steel needle is arranged in the clamping seat. The carpet can be prevented from shifting due to vehicle vibration or treading, safety is improved, and meanwhile the steel needles are firm in material, resistant to corrosion and abrasion and not prone to deformation after being used for a long time.

The utility model discloses a combined form template with reinforcing structure relates to building template technical field, including multiple sets of wooden main board body, the left and right sides of wooden main board body front end are fixedly connected with side angle iron respectively, the upper and lower ends of wooden main board body front end are fixedly connected with end angle iron respectively. This combined form template with reinforcing structure is provided with wooden main board body, side angle iron, reinforcing angle iron and end angle iron, when using, wooden main board body is as main board body, and the material quality is stable and smooth surface, and the outer pasting type side angle iron, reinforcing angle iron and end angle iron three groups of angle iron increase its overall strength, make it not easy warping deformation, and convenient subsequent connection and secondary reinforcement, the whole no consumption of square wood, and material is easy to turnover utilization, and the cost is lower, realizes the function of simple structure high strength, solves the device square wood consumption low, material turnover rate low problem.

The invention discloses a photocatalytic material for synchronously removing composite new pollutants in plateau lakes and a preparation method and application of the photocatalytic material, and relates to the technical field of environmental functional materials, the photocatalytic material is a rare earth metal doped silicon dioxide composite material, and the molar ratio of rare earth metal to silicon is 3-15%; the composite new pollutants comprise micro-plastics, antibiotics and dyes. Rare earth doping is carried out on silicon dioxide, the light response range of the material is effectively widened, the separation and migration efficiency of photo-induced electron-hole pairs is remarkably improved, and therefore synchronous and efficient removal of three kinds of new composite pollutants including micro-plastics, antibiotics and dyes in a water body is achieved at the normal temperature and the normal pressure; the prepared 10% La-SiO2 and other rare earth doped silicon dioxide materials show more excellent photocatalytic activity in a plateau strong ultraviolet environment, and have the comprehensive advantages of low raw material cost, environmental friendliness, no need of complex recovery after use and the like.

The application relates to the technical field of organic synthesis, and relates to a synthetic process of rifampicin by taking rifamycin O as a starting material, which comprises the following steps: after rifamycin O is hydrolyzed, a cyclization reaction is carried out on the hydrolyzed rifamycin O and dimethylol tertiary butylamine, and crystallization is carried out, so that rifamycin oxazine is obtained; a condensation reaction is carried out on the rifamycin oxazine and 1-methyl-4-aminopiperazine, and crystallization is carried out, so that rifampicin is obtained. Through the above technical scheme, the problems of low raw material output, insufficient purity and complex preparation in the production of rifampicin in the prior art are solved.

The invention discloses an explosion-proof chemical forcible entry rescue machine, and relates to the technical field of forcible entry rescue, a stainless steel forcible entry cutter for forcible entry of articles and an external force rod for additionally applying forcible entry force to the stainless steel forcible entry cutter are mounted in a forcible entry cover, and the external force rod penetrates through an outer sealing ring; the rescue device has the advantages that a double-closed barrier is constructed, external flammable and explosive gas is effectively prevented from entering or internal harmful gas is effectively prevented from leaking, the air in the forcible entry cover is extracted by the extraction pipe to form a low-oxygen environment, the air in the forcible entry cover is prevented from entering the rescue device, and the air in the forcible entry cover is prevented from entering the rescue device. The stainless steel forcible entry cutter as a core component is firm in material and not prone to generating sparks during forcible entry, the risk of spark ignition is eradicated in combination with a low-oxygen environment, the device adapts to complex environments such as combustible gas and dust in chemical places, an external force rod can apply extra forcible entry force, and it is ensured that equipment is attached to a target in the forcible entry process.

The invention relates to the technical field of injection molds, and discloses a demolding deformation prevention injection mold for automobile injection molding part production, which comprises an upper mold, a lower mold arranged at the bottom of the upper mold, and adjusting mechanisms symmetrically arranged in the upper mold, the adjusting mechanism comprises a shell arranged in the shell, a reducing hole formed in the bottom of the shell, an inner ring channel formed in the position, close to the bottom of the reducing hole, of the shell, an outer ring channel formed in the position, close to the outer side of the inner ring channel, of the shell, a ring groove jointly formed in the top of the inner ring channel and the top of the outer ring channel, and double flow channels symmetrically formed in the top of the ring groove. The rotating block is arranged in the annular groove, the worm gear is arranged on the edge of the top of the rotating block, and the worm is arranged on the shell close to the edge of the worm gear. By arranging the adjusting mechanism, the mold supports switching of two modes of sandwich injection molding and mixed injection molding, the requirements of different production scenes are met, and the function of adjusting the sequence of the inner layer and the outer layer of two raw materials in the sandwich injection molding process is achieved.

The application discloses a carbon-based room-temperature superconducting material based on frequency resonance matching and a preparation method thereof. 18 The material is made of a heterogeneous covalent network skeleton composed of three-dimensional porous graphdiyne and C The preparation steps include: using microfluidic technology to programically drop isotopic limited fullerene solution into the skeleton suspension to build component micro-gradual distribution; applying a rotating space electric field in a liquid phase state and using deep ultraviolet light for in-situ crosslinking to solidify the dipole configuration of the polarized molecules; and performing alkali metal localized gas phase intercalation after desolvation. The application realizes resonance matching of the lattice electron transmission frequency and the local polariton vibration frequency through spatial gradient distribution and endogenous chemical stress extrusion, overcomes thermal fluctuation disturbance under normal temperature, and establishes a stable macroscopic quantum coherent state under normal temperature and pressure.

The invention discloses a self-powered small-molecule traditional Chinese medicine ion introduction acupoint patch which sequentially comprises an elastic backing layer, a piezoelectric energy collection layer, a drug-loaded conductive hydrogel layer and a release protection layer from outside to inside, the piezoelectric energy collection layer comprises a rectifier module, and the drug-loaded conductive hydrogel layer is arranged to be a solid ionic gel or semi-interpenetrating network hydrogel film. According to the self-powered small-molecule traditional Chinese medicine iontophoresis acupoint patch and the preparation method thereof, a microencapsulation technology is abandoned, free-state traditional Chinese medicine small molecules are directly adopted, and deep skin penetration is achieved through the high electrophoresis mobility of the free-state traditional Chinese medicine small molecules under a high-voltage electric field; through the design of an integrated flexible rectifying circuit or an asymmetric electrode, piezoelectric alternating current is converted into pulsating direct current, it is ensured that charged medicine is always subjected to one-way electric field force pointing to the deep layer of the skin, and meanwhile low-cost and large-scale manufacturing is achieved.

This application discloses an organic compound and an organic layer, their applications, an organic electroluminescent device, and a display or lighting device, wherein the organic compound has the structural formula shown in Formula I: In Formula I, L1 and L2 are independently selected from substituted or unsubstituted C6-C30 aryl groups and substituted or unsubstituted C3-C30 heteroaryl groups; Ar1, Ar2, and Ar3 are independently selected from substituted or unsubstituted C6-C30 aryl groups and substituted or unsubstituted C3-C30 heteroaryl groups. X is selected from O, S, NR1, CR2R3, and SiR4R5, and R1 to R5 are independently selected from substituted or unsubstituted straight-chain or branched C1 to C30 alkyl groups, substituted or unsubstituted C3 to C30 cycloalkyl groups, substituted or unsubstituted C1 to C30 heteroalkyl groups, substituted or unsubstituted C1 to C30 heterocycloalkyl groups, substituted or unsubstituted C6 to C30 aryl groups, substituted or unsubstituted C3 to C30 heteroaryl groups, or formed into a ring with adjacent atoms. When this organic compound is applied to organic electroluminescent devices, it can significantly improve the current efficiency and lifetime of the device and reduce the operating voltage of the device.