35results about How to "Change interface state" patented technology

The invention discloses a mechanical equipment cleaning liquid, which consists of monohydric alcohol, glycol, complexing agent, anionic surfactant, nonionic surfactant, compound corrosion inhibitor, coloring agent and water. The mechanical equipment cleaning liquid is prepared by using environmental-friendly substances, is a universal cleaning fluid for mechanical equipment maintenance and repair, does not have inflammables and explosive characteristics during use, does not cause higher adverse influences on a working environment, does not contain environmentally hazardous substances such as nitrite, phenol and formaldehyde, is nonflammable, is nontoxic to operators and has a better effect of cleaning inorganic fouling such as asphalt, better safety and environmental friendliness are realized, the processing environment and sanitary conditions can be improved, the working efficiency can be improved and the cost can be reduced.

The invention provides an anti-static glass fiber reinforced AS composition and a preparation method thereof. The anti-static glass fiber reinforced AS composition comprises, by weight parts, 44-78 parts of AS resin, 10-20 parts of glass fiber, 5-10 parts of compatilizer, 0.1-1 part of coupling agent, 10-15 parts of anti-static agent and 0.1-1 part of auxiliaries. The AS resin is a copolymer of acrylonitrile and styrene, and the glass fiber is one or two or more of long glass fiber and chopped glass fiber. According to the anti-static glass fiber reinforced AS composition, acrylate polymer or copolymer is used to serve as the compatilizer, so that the interface state between the glass fiber and the resin can be effectively changed, the interfacial binding power is improved, and thus the performance of a composite material is improved.

The invention discloses a preparation method of a high-cracking resistance rock wool board, belonging to the technical field of preparation of rock wool boards. According to the preparation method, the rock wool board with high cracking resistance and bonding strength is prepared by taking basalt fibers as a main material and rubber powder polyphenyl particles, glass melting liquid, quartz sand and the like as reinforcing filling materials, and the main material and the reinforcing filling materials are firmly connected together, so that the bonding strength of the rock wool board is effectively improved; polystyrene is foamed by virtue of a foaming agent to form a hard hole-closed structure, and formed polystyrene particles are dually modified by virtue of a bonding agent and a silane coupling agent, so that the bonding strength of the rock wool board is improved; the glass melting liquid is modified by virtue of polyethylene glycol stearate, so that the expansion of cracks can be inhibited, the mechanical property of the rock wool board can be improved; and after glass fibers are modified, the contact areas with the basalt fibers are increased by virtue of rough surface structures, the bonding strength of an interface can be substantially enhanced, the cracking resistance and bonding strength of the rock wool board are further improved; and the preparation method has wide application prospects.

The invention discloses a composite insulated solid-sealed pole, comprising a vacuum interrupter. A static end cover plate and a movable end cover plate are arranged at the two ends of the vacuum interrupter, a ceramics insulating layer is arranged on the surface of the vacuum interrupter, the outer side of the ceramic insulating layer is coated with a silica gel layer, and the outer side of the silica gel layer is coated with epoxy resin, wherein the contact interface between the ceramic insulating layer and the silica gel layer is an annular corrugated surface, and the contact interface of the silicone gel layer and the epoxy resin is also an annular corrugated surface. According to the composite insulated solid-sealed pole obtained by the invention, the buffering effect of the silica gel layer of the vacuum interrupter is improved, no air bubble is caused, and the external insulation level of the vacuum interrupter can be obviously improved, The distance between the static end coverplate and the movable end cover plate of the vacuum interrupter is increased by about 30% through the arrangement of the annular corrugated surfaces, the interface state of the two materials is changed, the surface dielectric structure is changed, and the linear breakdown is avoided.

The invention discloses a novel rare earth compound type brake pad. The novel rare earth compound type brake pad comprises, by weight, 14-18% of modified phenolic resin, 25-30% of fiber materials, 25-35% of filling materials and 25-35% of rear earth materials, wherein the rear earth materials are composed of one or more kinds of lanthanum oxide, cerium oxide and praseodymium oxide, and the fiber materials are composed of one or more kinds of mineral fibers, glass fibers and paper fibers. The invention further discloses a preparation method of the novel rare earth compound type brake pad. The novel rare earth compound type brake pad is good in high-temperature resistance, excellent in abrasion resistance and large in impact resistance, and the preparation method is simple and low in cost.

The invention discloses cleaning fluid for book cleaning and a preparation method thereof. The cleaning fluid is prepared from the following raw materials: a surfactant, chitosan grafted keratin / polyvinyl alcohol fiber powder, polyvinylpyrrolidone, carboxymethylcellulose, sodium citrate, a defoaming agent, rosemary essential oil and distilled water. The preparation method comprises the following steps: (1) treating the distilled water to prepare pretreated distilled water; (2) mixing the polyvinylpyrrolidone, the carboxymethylcellulose, the sodium citrate and the surfactant, adding the mixtureinto the pretreated distilled water, heating and stirring to dissolve the mixture, and preparing a solution A; and (3) mixing the defoaming agent, the rosemary essential oil and the chitosan graftedkeratin / polyvinyl alcohol fiber powder, adding the mixture into the solution A, heating the solution, then stirring the solution at a high speed, and cooling the product to obtain the cleaning fluid.According to the cleaning fluid prepared by the preparation method disclosed by the invention, the preparation process is simple, and the operation is convenient; the selected raw materials are pollution-free to the environment; waste fluid obtained by cleaning is convenient to treat and can meet an environmentally-friendly discharging requirement; and furthermore, the cleaning fluid is high in cleaning capacity, high in cleaning speed and long in service life.

The invention discloses an efficient cleaning agent. The efficient cleaning agent is prepared from the following raw materials in parts by weight: 1.5-2.8 parts of triethylene glycol methylpropyl ether, 0.8-2.3 parts of hydroxyl ethylidene bisphosphoric acid, 1.2-3.4 parts of alcohol amine, 1.2-1.5 parts of deionized water, 1.5-2.8 parts of cis-1,2-dimethyl cyclohexane, 3.1-6.4 parts of a stabilizer, 3.5-6.7 parts of lauryl dimethylamine betaine and 4.5-5.8 parts of sodium chloride. The efficient cleaning agent has the beneficial effects that the surface tension of water can be remarkably lowered, so that the surface of a workpiece can be easily wetted and is strong in seepage force; the interface condition between oil stains and the workpiece can be more effectively changed, so that oil-in-water type granules are formed by the oil stains through emulsifying, dispersing, rolling and solubilization and are cleaned; the formula is scientific and reasonable, the foam is little during cleaning, the cleaning capability is strong, the continuity is good, the speed is high, and the service life is long.

The invention discloses an electrolyte and a method for preparing a black membrane on an aluminum alloy surface by using same. The electrolyte comprises 8-15 g / L of hydroxide, 10-15 g / L of fluoride, 20-30 g / L of phosphate, 4-14 g / L of ferrate, 1-5 g / L of fluorotitanate, 10-20 g / L of organic alcohol and 80-300 g / L of an ablation inhibitor, and the solvent is deionized water. The method has the advantages that higher black level can be achieved on a thinner membrane to effectively avoid the problem of the discarding of a complicated precision product caused by local ablation when the complicatedprecision product is processed.

The invention discloses a degumming cleaning fluid for processing neodymium iron boron magnetic materials. Raw materials of the cleaning fluid include ethylene glycol, complexing agent, anionic surfactant, nonionic surfactant, compound corrosion inhibitor, alkaline agent, and balance of water. The cleaning fluid is prepared and formed through environment-friendly materials, is used for processing the neodymium iron boron magnetic materials and has no flammable and combustible features during use; large adverse impact on the work environment occurs rarely, nitrite, phenol, and formaldehyde and other environmentally hazardous substances are eliminated; the cleaning fluid is anti-flaming, is not toxic to operators and has good safe environmental protection, and processing environment and sanitary conditions are optimized; meanwhile, good cleaning effect on processing oil and fixing glue is achieved, working efficiency can be improved, and cost is reduced.