48results about How to "Strong high temperature resistance" patented technology

The invention discloses grease special for plastic and a preparation method thereof. The grease comprises the following components: organopolysiloxane, an additive, a heat stabilizer, a colloid stabilizer and a thickener, wherein the additive improves lubrication of dropping points and interfaces. The grease not only has the performance of common grease, but also has the advantages of stable colloid stability, strong high temperature resistance, and a special plastic protective function.

A high-temperature-resistant low-tension foam oil-displacing agent comprises an anionic surfactant and a zwitterionic surfactant, wherein the mass concentration ratio of the anionic surfactant to the zwitterionic surfactant is (1-50):1. The invention further discloses an application of the high-temperature-resistant low-tension foam oil-displacing agent to tertiary oil recovery to increase the recovery efficiency of crude oil in a high-temperature oil reservoir with the formation temperature of 80-200 DEG C. The high-temperature-resistant low-tension foam oil-displacing agent provided by the invention has the characteristics of ultralow interfacial tension, high foaming capacity, good foam stabilizing effect, good high-temperature resistance and the like, cannot be decomposed at the high temperature of 300DEG C. Ultralow interfacial tension less than 10<-2>mN/m can be achieved between an aqueous solution of the high-temperature-resistant low-tension foam oil-displacing agent and crude oil, wherein the concentration of the aqueous solution of the high-temperature-resistant low-tension foam oil-displacing agent is 0.1-0.5wt%.

The invention discloses a three-phase foam channel-sealing agent and a preparation method thereof, and a thickened oil exploiting and plugging method by adopting the three-phase foam channel-sealing agent, and belongs to the technical field of oil field chemistry. The three-phase foam channel-sealing agent consists of the following components in percentage by weight: 0.3% of a foaming agent, 3-4%of alpha-starch, 3%-4% of acrylamide, 0.01%-0.02% of an initiator, 0.1%-0.15% of a cross-linking agent, 0.1%-0.2% of a control agent, 0.5%-30% of solid-phase particles and the balance of water. The three-phase foam channel-sealing agent disclosed by the invention is injected into steam channeling pore channels, steam huff and puff is carried out after foam forms gel, the gel is carbonized when encountering steam, and solid particles are left to block the channeling channels. Plugging efficiency is high, permeability is adjustable, a problem of serious steam channeling can be well solved, and the recovery rate of crude oil is improved.

The present invention relates to a preparing method of a natural bamboo leaf extract antimicrobial agent, belonging to the field of preparing antibacterial agents. The method uses fresh moso bamboo leaves as a raw material. After yellow and decaying bamboo leaves are removed, the moso bamboo leaves are dried, the dried moso bamboo leaves are pulverized, the moso bamboo leaf powder is dissolved in a phosphate buffer, and the mixture is subjected to magnetic stirring in an ice-water bath to obtain a bamboo leaf pulp. Then the bamboo leaf pulp is centrifuged at a high-speed to obtain a supernatant. Ammonium sulfate is used to salt out crude antimicrobial protein peptide, and finally a natural bamboo leaf extract antimicrobial agent is obtained by dialysis. The used raw materials are natural plant leaves which are renewable resources and are large in resource maintaining amount and low in production cost, and so that the antimicrobial agent is easy in preparation steps and operations. The bamboo leaves contain a variety of natural compounds. The natural bamboo leaf extract antimicrobial agent has a good antibacterial effect, produces no influence on the flavor of food to be preserved, and has an antibacterial effect significantly higher than that of ordinary chemical antibacterial agents.

The invention provides enterococcus faecium R8 that is screened and separated from a crucian intestinal tract and has safe and prebiotic characteristics. The enterococcus faecium is collected in ChinaGeneral Microbiological Culture Collection Center (CGMCC) of China Committee for Culture Collection of Microorganisms on January 17, 2018 and has a collection number of CGMCC NO. 15229. The enterococcus faecium is high in heat resistance, acid-base resistance and stress resistance and more significant in probiotic performance, has a relatively obvious inhibiting effect on common aquatic pathogenic bacteria such as aeromonas veronii, staphylococcus haemolyticus, vibrio parahaemolyticus and vibrio vulnificus and can be widely applied to aquaculture as a feed additive.

The invention discloses a preparation method of high-efficient high-temperature acidizing corrosion inhibitor used in a self-diverting acid system. The corrosion inhibitor is compounded by a corrosion inhibitor main agent, a corrosion inhibition synergist, a cosolvent, and a solvent. The corrosion inhibitor guarantees corrosion of oil pipes and bushings due to self-diverting acid in the whole construction process is reduced to the minimum.

The present invention relates to a Nannochloropsis sp. mutant strain and applications thereof, wherein the taxonomy name of the Nannochloropsis sp. mutant strain is Nannochloropsis sp. The Nannochloropsis sp. mutant strain of the present invention has advantages of strong high temperature resistance, strong pesticide tolerance, high grease content, stable performance, and strong environmental adaptability.

The invention discloses an insulating ceramic for a high-voltage power transmission line. The insulating ceramic is characterized by comprising a ceramic body, a semiconductor glaze coating the outer surface of the ceramic body, and an insulating layer attached to the outside of the semiconductor glaze. The outer surface of the ceramic body is coated with the semiconductor glaze, and the insulating layer is bonded outside the semiconductor glaze, so that the insulating ceramic has higher insulating performance, and the power transmission line winding the outer surface is prevented from generating electrochemical corrosion on the insulating ceramic, is safe to use and has long service life.

The invention relates to a nannochloropsis oculata mutant strain and applications thereof. The nannochloropsis oculata mutant strain is taxonomically named Nannochloropsis Sp. The nannochloropsis oculata mutant strain has the advantages of stable properties, strong environment adaptability, and strong resistance to pesticide and a high temperature.

The invention provides compound low-methoxyl pectin. The compound low-methoxyl pectin is prepared from, by mass, 15-25 parts of pectin with the esterification degree of 32%-42% and 1-1.5 parts of sodium citrate; a gelatinous degree value of the compound low-methoxyl pectin ranges from 115 to 125, and a pH value of the compound low-methoxyl pectin ranges from 3.2 to 3.8. The invention further provides a preparation method of the compound low-methoxyl pectin. The preparation method comprises the three main steps of pectin compounding, pectin standardizing and pectin pH regulating. The invention further provides application of the compound low-methoxyl pectin in jam for baking.

The invention discloses alkali-resistant glass fiber mesh cloth. The mesh cloth is formed by weaving longitude lines and latitude lines, wherein all the longitude lines are arranged longitudinally atequal distance, all the latitude lines are arranged horizontally at equal distance, and each of the longitude lines is woven with all the latitude lines; all the longitude lines and all the latitude lines are glass fiber yarns, each of the glass fiber yarns comprises a plurality of monofilaments, and the diameter of each of the monofilaments is 7-10 [mu]m; the thickness of the alkali-resistant glass fiber mesh cloth is 0.2-0.7 mm; and the outer surface of the alkali-resistant glass fiber mesh cloth is coated with a binding agent layer, and the outer surface of the binding agent layer is coatedwith an alkali-resistant layer. The alkali-resistant glass fiber mesh cloth is strong in high temperature resistance, high in tensile strength and low in thermal conductivity coefficient; in addition, when the alkali-resistant glass fiber mesh cloth is compounded with resin to form an anti-ablation material, the anti-ablation property and the mechanical washing resistance of the anti-ablation material can be effectively improved, and high temperature on the surface of the anti-ablation material can be prevented from transmitting into the anti-ablation material.

The invention discloses a battery slurry solid content test device and test method. The device is specifically a concave type tray. The concave type tray comprises a tray bottom and an external rim. The concave type tray is made of a composite material. The specific raw materials for preparing the composite material comprise the following ingredients: C: 0.03-0.06%, Si: 0.6 -0.8%, Mn: 2-2.1%, Cr:19.0-22.0%, Ni: 9-11. 5%, N: 1.0-1.2%, and the balance being Fe. Compared with the prior art, the device has the following advantages: 1) the design of the concave type tray structure effectively ensures storage stability of the slurry to be tested in the taking and putting, testing and transporting process, and reduces splashing; 2) the test device prepared through the composite material is low in oxidation activity, is high in high-temperature tolerance and can maintain constant weight before or after baking, thereby reducing errors caused by the device itself of the test method; and 3) thetest method is simple, and the device is low in cost.

The invention discloses a fireproof plate and a preparation method thereof, and belongs to the technical field of fireproof materials. The fireproof plate comprises a plate core, a fireproof plate body and a veneer from inside to outside sequentially, wherein the plate core comprises frameworks and filler filled between the frameworks; the filler is prepared from components in parts by weight as follows: 200-600 parts of perlite, 150-300 parts of a calcium carbide substrate, 35-45 parts of sodium silicate, 8-16 parts of magnesium oxychloride and 600-1000 parts of water; the calcium carbide substrate is prepared from components in parts by weight: 60-160 parts of CaO, 50-150 parts of kaolinite, 20-30 parts of mullite fiber, 3-5 parts of Fe2O3, 10-20 parts of polyvinyl alcohol, 30-50 parts of dolomite fiber and 600-800 parts of water. Meanwhile, the fireproof plate is prepared by the following three steps: preparation of the frameworks, filling of the plate core, and pressing of a finished product. By means of the synergistic effect of various refractory materials, the comprehensive property of the fireproof plate can be better enhanced. The multi-layer structure of the fireproof plate is pressed by pressure, so that the structure is compact, and the seal property is good.

The invention discloses an improved multi-scale high-temperature speckle preparation method, which comprises the following steps of: 1, determining and optimizing characteristic parameters of a digital speckle field, generating an optimized multi-scale simulation speckle pattern, and converting the optimized multi-scale simulation speckle pattern into a computer-aided design (CAD) file; 2, coating a double-layer film on the surface of the test piece; 3, performing a speckle manufacturing process test on a glass sheet or a silicon sheet which is subjected to double-layer film coating with the test piece by using a femtosecond laser system, and designing the depth of a micro-scale speckle micropore and the depth of a macro-scale speckle hole according to the coating thickness of an outer layer, obtaining laser pulse parameters of the femtosecond laser system under the speckle diameter and the speckle depth of each scale; and 4, etching the double-layer film on the surface of the test piece to obtain a multi-scale speckle pattern. The coating does not damage the surface of the test piece, is not easy to fall off in a high-temperature environment, and can enhance the high-temperature resistance, corrosion resistance and the like of the test piece.

The invention relates to a high-temperature-resistant filter cloth, which belongs to the field of textile industry. A high temperature resistant filter cloth, which is woven from warp and weft, the warp and weft are both processed from 20s/2 aramid single yarn into strands, and the warp and weft are woven into 5/2 warp satin organizational structure. The warp and weft of the filter cloth are all made of aramid yarn, which makes the filter cloth have strong high temperature resistance and greatly improves the use effect and life of the filter cloth.

The invention discloses a formula of color changeable modified polytetrafluoroethylene. The color changeable modified polytetrafluoroethylene comprises modified polytetrafluoroethylene synthetic resin, a filling agent, a plasticizing agent, a dispersing agent, an antioxygen, a fire retarding agent and a thermosensitive color changing agent, wherein the filling agent is a mixture of wood powder and mica powder, the plasticizing agent is triphenyl phosphate, the dispersing agent is barium stearate, the antioxygen is hindered phenol, the fire retarding agent is a mixture of antimonous oxide and tetrabromophthalic anhydride, and the thermosensitive color changing agent is lead butyrate. Through adoption of the manner, the prepared color changeable modified polytetrafluoroethylene is strong in high temperature resistance, strong in flame resistance and low in cost, has the high-temperature color changing warning function, and is relatively high in safety.

The invention relates to UV coating which belongs to the technical field of UV coating. The UV coating is characterized by comprising the following components in percent by weight: 28-32 percent of Sartomer hyperbranched multifunctional polyurethane resin, 8-12 percent of crylic acid graft modified acrylic resin, 28-32 percent of Sartomer crylic acid activated monomer, 4-6 percent of Ciba photoinitiator, 5-7 percent of UK700 flatting powder, 1.5-2.5 percent of US surface improving agent, 8-12 percent of accelerating agent and 3.5-5 percent of SDY modifying agent. The UV coating has environment protection, high temperature resistance, good film-forming hardness, good glossiness, good liquidity resistance and wear-resisting property, excellent yellowing resistance, long activation period, low coating cost, high efficiency and ten times of the conventional coating efficiency.

The invention discloses a high-temperature-resistant antibacterial plastic which comprises the following components in parts by weight: 70-75 parts of silylanized polyimide, 25-27 parts of nitrile rubber, 6-8 parts of a plasticizer, 0.3-0.4 part of sulfur, 1-1.5 parts of 2,8-di-tert-butyl-4-methylphenol and 3.1-3.3 parts of sulfadiazine. As the nitrile rubber is compounded with silylanized polyimide to prepare the plastic, and the nitrile rubber has a good elastic deformation property, but is poor in high-temperature-resistant property, the plastic prepared by simultaneously smelting the silylanized polyimide and the nitrile rubber has not only the high-temperature-resistant property of the silylanized polyimide, but also the elastic deformation property of the nitrile rubber, furthermore,the prepared plastic can be applied to sealing at an ultrahigh temperature, and the problems that a conventional polyimide material is good in rigidity, low in deformation resistance, not applicableto sealing and not applicable to sealing storage of high-temperature articles, can be solved.

The invention relates to a saline water desalting system which comprises a container, a condenser, a membrane distillation assembly, a heater and pipelines, wherein the container is provided with a bitter saline water inlet, a desalted wastewater discharge hole and a fresh water discharge hole, the condenser and the membrane distillation assembly are arranged inside the container, the heater is used for heating bitter saline water entering the end part of the membrane distillation assembly and generating steam; the pipelines include a first pipeline for communicating the bitter saline water inlet with the heater, a second pipeline for communicating the heater with the membrane distillation assembly and a third pipeline for communicating the membrane distillation assembly and the wastewater discharge hole; the condenser is positioned above the membrane distillation assembly; the heater is arranged at the outer side of the container and is a solar heater; and the condenser is arranged on the first pipeline. According to the saline water desalting system, on the one hand, as the solar heater is used, energy sources are saved; and on the other hand, the condenser is arranged on the first pipeline, heat energy is transferred onto the first pipeline by using a condensation and heat dissipation principle, so that the temperature of bitter saline water in the first pipeline is improved and resources are sufficiently utilized.