102results about How to "Strong oxidation resistance" patented technology

The invention relates to the field of preparation of diaphragms of alkaline batteries such as zinc-silver batteries, and in particular relates to a zinc-silver battery composite diaphragm with an inorganic coating and a preparation method of the zinc-silver battery composite diaphragm. The composite diaphragm comprises an organic polymer material bottom film and the inorganic coating which is coated on the surface of the organic polymer material bottom film. The organic polymer material bottom film is used for ensuring the flexibility of the diaphragm, and a hydrophilic inorganic material endows the diaphragm with high liquid absorption rate, high oxidation resistance and high alkaline corrosion resistance. Meanwhile, inorganic particles have a function of regulating the aperture size of the composite diaphragm. Film-coating paste is obtained by mixing the inorganic particles, an adhesive, additives and the like, the inorganic coating is coated on the surface of the organic polymer material bottom film, and the composite diaphragm is obtained through a drying process and the like. An inorganic material and a conventional organic polymer material are composited, the advantages of the two materials are integrated, and the defects of a conventional zinc-silver battery diaphragm are overcome. The zinc-silver battery composite diaphragm has the characteristics of simple filming process, low cost, high comprehensive performance and the like, and the large-scale and large-size production of diaphragms is facilitated.

The invention provides a multi-layer composite filtering net for an HEPA filter. The multi-layer composite filtering net for the HEPA filter is characterized by sequentially comprising polytetrafluoroethylene membrane polyester non-woven cloth, an activated-carbon-supported formaldehyde scavenger filtering net, an HEPA filtering net and polytetrafluoroethylene membrane polyester non-woven cloth from the windward end to the downwind end. A single HEPA filtering net of an HEPA filter of the prior art is replaced by the multi-layer composite filtering net, not only conventional particles but also formaldehyde can be efficiently removed, the application range is wide, the filtering efficiency is high, and the service life of the HEPA filtering net is prolonged.

The invention relates to a high molecular leather release paper producing process capable of effectively improving the production efficiency of leather products. The process comprises the following steps: coating the back surface of body paper with oxidation-resistant liquid glue, drying by using hot air at an instantaneous high temperature, carrying out ultraviolet (UV) curing processing, conveying the processed body paper to a composite embossing unit, pushing multilayer high molecular resin to a high-temperature high-pressure clearance type current reducing spray head through a hot reflux high speed smelting pushing device, uniformly spraying the multilayer high molecular resin on the front surface of the body paper to form half-soakage combination with the body paper, carrying out mechanical embossing at the same time, combining the high molecular material with the body paper to form leather patterns, trimming and rolling to obtain the high molecular leather release paper.

The invention relates to a coking wastewater advanced treatment system, comprising a microwave-assisted catalytic oxidation device, a mixing reaction pool, a sedimentation pool, a manganese sand filter, a precision filter and a frequent electrode reverse electrodialysis device, wherein the microwave-assisted catalytic oxidation device is used for carrying out catalytic oxidation treatment on coking wastewater subjected to A / O (Anoxic / Oxic) biochemical treatment; the mixing reaction pool is connected with the microwave-assisted catalytic oxidation device and the sedimentation pool; the manganese sand filter is connected with the sedimentation pool and the precision filter; and the frequent electrode reverse electrodialysis device is connected with the precision filter. The advanced treatment process provided by the invention can be used for coking wastewater advanced treatment and simultaneously has a high-efficiency pretreatment and economic and proper type desalting system.

The invention discloses an aluminum-zinc-silicon-strontium-rare earth alloy ingot for continuous hot dipping and a manufacturing method of the aluminum-zinc-silicon-strontium-rare earth alloy ingot and relates to the technical field of alloy materials. The aluminum-zinc-silicon-strontium-rare earth alloy ingot is prepared from the following components in percentage by weight: 55 percent of aluminum, 43.19 percent of zinc, 1.65 percent of silicon, 0.1 percent of strontium and 0.06 percent of rare earth. The prepared aluminum-zinc-silicon-strontium-rare earth alloy coating has the characteristics of good adhesion performance, reliability in durability, oxidative resistance and acid and alkaline resistance and is capable of prolonging the service life of a coating product, solving the problem in the prior art of eliminating impurities which are generated as a melt of an aluminum alloy with a high ratio flows and an alloy melt is in a state of a high-temperature zinc pot for a long time and enabling the application of the product to be stable.

The invention relates to a composite additive for industrial gear oil. The composite additive for industrial gear oil is basically characterized by comprising, by weight, 9-11% of an antioxidant; 8-10% of an antiwear agent; 10-12% of an anti-extreme pressure agent; 9-11% of a demulsifying agent; 10-12% of a foam inhibitor; 4-6% of a pour-point depressant; 4-6% of a tackifier; 3-4% of nanoscale copper oxide powder; 4-5% of nanoscale magnesium powder; and the balance base oil. The antioxidant is sterically hindered phenol; the antiwear agent is dialkyl dithiophosphate; the anti-extreme pressure agent is chlorinated paraffin; the demulsifying agent is polyalkoxyl polyol; the foam inhibitor is polyacrylic ester; the pour-point depressant is polyalkyl methacrylate; and the tackifier is polyisobutylene. Being economical and practical, the composite additive for industrial gear oil provided by the invention has the advantages of simple preparation scheme, strong thermal stability, good high temperature extrusion performance, strong oxidation resistance and high wear resistance, can prolong the demulsibility life, and can enhance the anti-foaming performance, and is superior to similar products in terms of comprehensive performance. The waste oil is degradable, thus improving the environmental protection requirements.

The invention discloses an aluminum-zinc-silicon-strontium-magnesium-rare earth alloy ingot for continuous hot dipping and a manufacturing method of the aluminum-zinc-silicon-strontium-magnesium-rare earth alloy ingot and relates to the technical field of alloy materials. The aluminum-zinc-silicon-strontium-magnesium-rare earth alloy ingot is prepared from the following components in percentage by weight: 12 percent of aluminum, 86.55 percent of zinc, 0.36 percent of silicon, 0.03 percent of strontium, 1 percent of magnesium and 0.06 percent of rare earth. The prepared alloy coating has the characteristics of good adhesion performance, reliability in durability, oxidative resistance and acid and alkaline resistance and is capable of prolonging the service life of a coating product, solving the problem in the prior art of discoloration of the product and enabling the product to be stored for a long time.

The invention relates to the field of sewage treatment and recycling and discloses a method for recycling residual liquid in a dye vat. The method comprises the following steps: S11, collecting the residual liquid; S12, filtering the residual liquid to remove impurities; S13, introducing the residual liquid into a special membrane separation system to obtain produced water and concentrated water;S14, recycling the produced water and collecting and discharging the concentrated water. The residual liquid in the dye vat is decolorized by the special membrane separation system, salt in the residual liquid is retained in the produced water, the salt in the residual liquid is recycled while dyeing sewage is purified and treated, and accordingly, treatment burden of a sewage plant is reduced, energy is saved, the environment is protected, and the production cost is reduced.

The invention discloses a composite sleeve penetrating through a cabinet. The composite sleeve comprises a power bus pipe composed of an electric conduction copper bar core, wherein the electric conduction copper bar core is at least wrapped by a composite silicone rubber layer, a flange plate is arranged in the middle of the power bus pipe, the power bus pipe is divided into a first power bus pipe section and a second power bus pipe section through the flange plate, and umbrella skirts are arranged on the outer surface, located on the first power bus pipe section, of the composite silicone rubber layer. The composite sleeve has the advantages of being long in creepage distance, capable of resisting oxidation, high in pollution resistant capacity and convenient to install, and the service life of the high-voltage switch cabinet can be effectively prolonged.

The invention discloses an oxidation-resistant amylase mutant and a preparation method thereof, and belongs to the field of genetic engineering. The preparation method of the invention adopts Bacillus alcalophilus JN21 (CCTCC NO: M 2011231) amylase as a female parent, and performs site-directed mutagenesis of the Bacillus alcalophilus amylase sequence by molecular biology technology. Under the reconstruction conditions, the Bacillus alcalophilus amylase is treated at 40 DEG C in 500 mM H2O2 environment for 30 min, and the enzymatic activity residue is increased from 18% of a control (before mutation) case to 92%; with the strategy, the oxidation resistance of the amylase is greatly increased, which lays a foundation for the application of the amylase in industrial production fields of weaving desizing, washing agent additives, and the like. The strategy has important guidance meaning for the reconstruction of oxidation resistance of amylase and other enzymes.

The present invention is production process of no-carbon copy paper with high light tolerance, color fastness and long retention time. The production process includes the following steps: preparing cassava-corn glue, preparing developer paint, preparing color base paint, spreading the developer paint to the lower side of paper, and spreading the color base paint to the upper side of paper.