51results about How to "Efficient adhesion" patented technology

The invention relates to the field of concrete structure protection, mainly nano-modified silane and siloxane water-repellent for concrete surface waterproof and anti-corrosion protection and a preparation method thereof. The method is as follows: step 1, dissolving graphene in small molecule alcohols and ester solvents, and dispersing by ultrasonic waves for 30-60 minutes to form a uniformly dispersed graphene dispersion; step 2, dissolving isooctyltriethoxysilane Mix with isobutyltriethoxysilane and ester small molecule solvent according to a certain ratio, and mix them uniformly by mechanical stirring for 15-45 minutes to obtain a silicone dispersion; step 3, mix the graphene dispersion and silicone dispersion according to 1: The ratio of 3~1:10 can be uniformly dispersed under the condition of mechanical stirring to obtain nano-modified silane and siloxane waterproofing agent.

The invention discloses a device and method for enrichment and separation of nitrifying bacteria. The device includes a nitrification treatment tank, a partition plate is arranged in the nitrification treatment tank and divides the nitrification treatment tank into an enrichment tank and a separation tank. An aeration device is arranged at the bottom of the enrichment tank, a membrane module is arranged above the aeration device, the enrichment tank is internally filled with two fillers, the specific gravity of the first filler is 0.95-0.98 g / L, the particle size is 3-5 cm, the specific gravity of the second filler is 1-2.2 g / L, and the particle size is 0.15-0.3 mm. A filter screen for separating the first filler and the second filler is arranged at the lower portion of the separation tank, a first filler collecting port and a water draining port are formed above the filter screen, and a second filler collecting port is formed below the filter screen. A water draining sluice is arranged on the partition plate and located above the filter screen. The device can simultaneously achieve enrichment and separation of nitrifying bacteria and is high in nitrifying bacterium enrichment purity and large in enrichment amount.

The invention relates to a mannosylated chitosan delivery system assembled tuberculosis mucosa gene vaccine. The mannosylated chitosan delivery system assembled tuberculosis mucosa gene vaccine is a nanoparticle complex compounded through copolymerization and crosslinking of mannosylated chitosan and a tuberculosis antigen encoding plasmid pPES; the tuberculosis antigen encoding plasmid pPES is amulti-T cell epitope tuberculosis gene vaccine with heat shock protein 65 as an epitope scaffold, which is disclosed in the invention with the application number of 201310682146.4. The invention further discloses a preparation method of the mannosylated chitosan delivery system assembled tuberculosis mucosa gene vaccine. The preparation method comprises the following steps: preparing a mannosylated chitosan solution with the concentration of 0.015-0.025% and the pH of 5.2-5.5; dissolving the tuberculosis antigen encoding plasmid pPES into a buffer solution to obtain a tuberculosis antigen encoding plasmid solution with the concentration of 800 [mu]g / ml-1 mg / ml; and mixing the mannosylated chitosan solution and the tuberculosis antigen encoding plasmid solution at 54-57 DEG C at a high speed of 15000-17000 rpm, and performing a copolymerization and chemical crosslinking reaction. The invention further discloses application of the mannosylated chitosan delivery system assembled tuberculosis mucosa gene vaccine to preparation of medicines for preventing or treating tuberculosis. The tuberculosis mucosa gene vaccine has the potential as a novel preventive and therapeutic tuberculosis vaccine.

The invention relates to the technical field of exploitation of southern ion type rare earth ores, in particular to a southern ion type rare earth ore Luoyang shovel. The invention aims to solve the problem that defects exist in application of a Luoyang shovel in southern ion type rare earth ores. According to the technical points, the southern ion type rare earth ore Luoyang shovel comprises a shovel rod, a shovel barrel, a plurality of shovel barrel tongue-shaped front edges, shovel barrel toothed chutes and an annular oblique ring beam, wherein the shovel barrel comprises a shovel barrel body, and is of a cylinder structure of which the opening direction of the barrel body faces away from the shovel rod; the shovel barrel tongue-shaped front edges are arranged along the shovel barrel body and correspond to the edge of the opening of the barrel body, and each shovel barrel tongue-shaped front edge is provided with a tongue-shaped protrusion of which the tip faces away from the shovelrod; the shovel barrel toothed chutes surround the peripheral wall of the shovel barrel body, and toothed openings face one sides of the shovel barrel tongue-shaped front edges; and the annular oblique ring beam surrounds the peripheral wall of the shovel barrel body, is located at the position where the shovel barrel body is connected with the shovel barrel toothed chutes, and is located on theside facing the toothed openings. The southern ion type rare earth ore Luoyang shovel is simple in integral structure, convenient to operate and high in construction efficiency, is suitable for exploration and exploitation of southern ion type rare earth ores, and is worthy of being popularized and used.

The invention discloses an iridescent pearlescent leather and a preparation method thereof, belonging to the technical field of leather. The iridescent pearlescent leather of the present invention comprises leather and a coating, and the coating comprises the following components in terms of the mass percentage of the leather: 7-10% of the first coating, 12-15% of the second coating and 12-15% of the third coating 12-15% of the layer, wherein, the third coating, the second coating and the first coating are sequentially coated on the leather. The preparation method of the iridescent pearlescent leather includes the following steps: preparing the coating Material, coating coating material and drying, the surface of the obtained iridescent pearlescent leather has a reflective effect, the tensile strength is as high as 31 MPa in the transverse direction, 33 MPa in the longitudinal direction, and the friction fading reaches level 4. It has strong friction resistance and yellowing resistance. powerful.