5results about How to "Long term protection" patented technology

The utility model relates to the technical field of steel anticorrosive coating spraying technology, and disclose a spraying device for high-strength steel anticorrosive coating, including frame, the bottom fixed assembly of frame has the moving wheel, the outer wall fixed mounting of frame has the controller, the top fixed mounting of frame has the platform, the top of platform is equipped with steel limiting assembly and spraying assembly respectively, the top fixed assembly of platform has the struts. By placing the steel in the inner wall of the placing table, at this time, the controller can emit signals, so that the air pump two can be started, so that the air pump two can be adsorbed by the adsorption gas outlet to the steel placed on the top of the placing table, the steel can be fixedly installed on the top of the placing table, so that the steel can be conveniently anticorrosive coating spraying work, and when the servo motor works, the placing table can be driven to rotate, so that the steel placed on the top of the placing table can be sprayed all-round.

This invention discloses a large-area photo-chargeable aqueous zinc-ion battery, its preparation method, and its application. The method includes the following steps: Two pieces of glass with a transparent conductive layer coated on one side are taken. A positive electrode material is placed on the coated layer of one of the glass pieces. A glass fiber separator and a negative electrode material are sequentially covered on top of the positive electrode material. The other glass piece is then placed on top of the negative electrode material with its coated layer facing down. The positions of the two glass pieces are adjusted so that they are stacked alternately. Pressure is applied to the resulting stacked structure, and three sides are sealed with hot melt adhesive. After the hot melt adhesive has cured, electrolyte is injected into the unsealed side, and then this side is sealed again. The negative electrode of a diode is connected to the glass on the positive electrode side of the battery, and the positive electrode of the diode is connected to the glass on the negative electrode side of the battery, thus obtaining a large-area photo-chargeable aqueous zinc-ion battery. The battery of this invention has the advantages of high light utilization, stable charging, and low loss.

This disclosure provides a self-healing protection system and method for automatic repair of damaged offshore wind power foundations. By sequentially setting a flexible base layer, a self-healing functional layer, and a surface layer on the foundation structure surface, and constructing a three-dimensional mesh microchannel within the self-healing functional layer, when cracks or damage occur in the protective layer, seawater is guided into the damaged area using the microchannels. This triggers a chelation reaction between magnesium phosphate cement-based filler and calcium and magnesium ions in the seawater, forming a deposition layer that fills the tiny gaps. Simultaneously, the microcapsules rupture, releasing a two-component repair agent, which cross-links and solidifies under the action of oxygen carried by seawater and wind, forming an elastic sealing layer. This achieves automatic repair of the damaged area, significantly reducing the maintenance cost of deep-sea and offshore wind power. Furthermore, the base layer buffers structural deformation stress, and the biomimetic structure and diamond-like coating of the surface layer enhance erosion and aging resistance. Combined with photochromic microspheres and a conductive sensing network, it enables visual monitoring and assessment of the degree of damage.

This invention relates to the fields of biomedical technology and pharmaceutical formulations, and discloses a sustained-release powder spray for oral ulcers based on milk exosomes and its preparation method. The spray uses milk exosomes as the active ingredient, combined with an extracellular matrix-simulated network composed of sodium hyaluronate and collagen, and the stabilizer trehalose. It is prepared into a dry powder with a particle size of 2-15 μm through a microdroplet freeze-drying process. During preparation, the components are mixed and formed into microdroplets using a microfluidic device, then instantaneously frozen in liquid nitrogen at -80°C, and finally freeze-dried to obtain the powder. This formulation can be stably stored for a long time at 2-8°C. When used, it is sprayed onto the ulcer surface using a quantitative spray device. Upon contact with moisture, the gel network is reconstructed in situ, achieving sustained release and protection of the exosomes. It has the advantages of convenient use, accurate dosage, and long-lasting healing promotion.

This invention relates to the field of cement building materials, specifically disclosing a cement-based protective material with both ion trapping and induced passivation functions and its application. The cement-based protective material comprises the following components: 95-100 parts by weight of magnesium phosphate cement, 4-6 parts by weight of retarder, and 20-25 parts by weight of composite modifier. The composite modifier comprises modified dry powder, calcium-containing dry powder, mixing water, and a dispersant, and the modified dry powder is obtained by calcining a layered bimetallic hydroxide with an aluminum source. The cement-based protective material of this invention exhibits high Cl- content... ‑ SO4 2‑ In addition to its excellent impermeability in CO2 environments, it can also actively capture corrosive ions, promote the formation and maintenance of a stable passivation film on the steel surface, thereby providing more long-lasting and reliable protection for marine steel structures.