31results about How to "Reduce chemical corrosion" patented technology

Provided is a force rheological polishing method with the chemical action released at a fixed point. A wrapping body containing chemical polishing liquid is added into non-Newtonian fluid polishing liquid with a shearing thickening effect; in the polishing process, along with increasing of the relative movement speed of the polishing liquid and a workpiece, the shearing force caused by the workpiece on the polishing liquid is ceaselessly increased, the polishing liquid generates a rheological phenomenon, and viscosity is fast increased; thus, the acting force of the polishing liquid on the wrapping body dispersed in the polishing liquid is relatively enhanced, the wrapping body is extruded and broken on a face making contact the workpiece, and chemical substances in the wrapping body are released to a polished surface of the workpiece; and the chemical substances bear high speed and high pressure effects, a chemical reaction fast happens with the surface of the workpiece, chemical reactants formed on the surface of the workpiece are efficiently removed by abrasive particles in the polishing liquid, no mechanical damage is generated on a workpiece body material, and therefore the polishing efficiency and quality of the workpiece material are improved. The force rheological polishing method with the chemical action released at the fixed point is efficient, low in cost and environment-friendly.

The invention discloses a mildew-proof and antibacterial liquid crystal electronic glass spacer paper and its production process. The slurry of the spacer paper includes 50-70% of virgin coniferous wood pulp, 10-30% of virgin hardwood pulp and 10-30% of virgin hardwood pulp. 20% coniferous wood pulp; among them, virgin softwood pulp and coniferous wood pulp are mixed and beaten, and the beating degree is 25-30°SR; the original hardwood pulp is beaten separately, and the beating degree is 20-25°SR. Quantitative value is 30-60g / m2, pH value is 4.5-6.5, water content is 1.0-4.0%, surface resistance ≥ 1010Ω, air permeability ≥ 500ml / min. The invention combines various measures to prepare a weakly acidic anti-mildew and antibacterial liquid crystal electronic glass spacer and packaging paper with high stiffness, high mechanical strength and high air permeability, and has a certain isolation and protection during the storage and transportation of the electronic glass. Protective effect, but also has anti-mildew, moisture-proof function.

The invention discloses a perovskite solar cell, a double-layer metal electrode for the perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a glass substrate, a transparent conductive electrode, a hole transport layer, a perovskite thin film, electron transport layer and double-layer metal electrode; the double-layer metal electrode includes a first metal thin film layer and a second metal thin film layer, and its preparation method includes: depositing a layer of the first metal thin film layer on one side of the electron transport layer, A second metal thin film layer is deposited on the first metal thin film layer. In the present invention, a layer of chemically inert first metal thin film layer is deposited in low-temperature vacuum on the electron transport layer, and a second metal thin film layer with high conductivity is arranged on the first metal thin film layer, which can reduce photoelectric conversion On the basis of efficiency, it can effectively isolate the penetration of moisture and reduce the chemical corrosion of the second metal thin film layer, which is beneficial to improve the stability of the perovskite solar cell.