475 results about "Oil soluble" patented technology

According to the stable organic silicon emulsion and the preparation method thereof provided by the invention, polyglycerol ricinoleate with different polymerization degrees, polydihydric alcohol oleate with different molecular weights and silicon polyether are introduced, so that the emulsifying capacity of the emulsion is improved, and the stability of the emulsion is improved; the polyglycerol ricinoleate serving as an emulsifier and a stabilizer can disperse water-soluble substances and oil-soluble substances, so that all the components are uniformly mixed, the emulsification is more sufficient, and the stability of the emulsion is improved; the emulsion enters the emulsification pump for emulsification under the condition of high rotating speed, so that the particle size of the emulsion is smaller, and the stability is better.

The invention discloses a method for hydrodechlorination and desiliconization of waste plastic oil, which comprises the following steps: removing Cl and Si elements from the waste plastic oil by using a slurry reactor under the action of a hydrogenation catalyst and hydrogen to finally obtain Cllt; 0.2 [mu] g / g, Silt; 1 [mu] g / g of a waste plastic oil product; the hydrogenation catalyst is a compound catalyst formed by an oil-soluble catalyst and a powder catalyst subjected to alkali treatment, and after recycling, the inactivated catalyst is subjected to roasting, primary alkali treatment, secondary alkali treatment and grinding and then regenerated to obtain the powder catalyst; therefore, the problems that in the removal process of Si and Cl elements in the waste plastic oil, catalytic materials, devices and equipment and product properties are affected, and hydrodechlorination and desiliconization catalysts are difficult to regenerate are solved.

The invention provides a method for improving lubricating property and wear resistance of base oil and a method for improving dispersion stability of graphite in the base oil. A telechelic polymer is adopted, the telechelic polymer is composed of an oil-soluble central chain and two non-oil-soluble pyrene functionalized end-group chains, and the telechelic polymer can be self-assembled into a completely cross-linked, rodlike and stable gel network through pi-pi stacking interaction. The telechelic polymer is added into the base oil, so that stable oil gel can be formed, on one hand, leakage and wriggling of the base oil can be remarkably relieved, and on the other hand, the lubricating property and wear resistance of the base oil can be improved; when graphite or a derivative thereof is also added, the lubricating property and the wear resistance can be further improved, particularly when the graphite is added, the graphite can be stripped into graphene in situ under the assistance of ultrasonic waves, the cost is low, the method is simple and easy to implement, and the dispersion stability of the graphite is improved.

The invention belongs to the technical field of oilfield auxiliaries, and particularly relates to an oil-soluble demulsifier for a heavy oil field and a preparation method of the oil-soluble demulsifier. The oil-soluble demulsifier for the heavy oil field, provided by the invention, is prepared from a block polymer emulsion, nonylphenol polyoxyethylene ether, modified nanoparticles and a cross-linking agent. According to the invention, methoxystyrene, dodecyl vinyl ether, N, N-dimethylaminopropyl acrylamide and 2-acrylamide-2-methylpropanesulfonic acid are adopted to prepare a quaternary block comb-shaped polymer, the quaternary block comb-shaped polymer and nonylphenol polyoxyethylene ether are subjected to molecular-level cross-linking through a cross-linking agent, nano modified particles are added, and the quaternary block comb-shaped polymer is prepared. The prepared demulsifier can be rapidly adsorbed on an oil-water interface and respectively adsorb an oil phase and a water phase, so that the tension of the oil-water interface is reduced, rapid separation of the oil phase and the water phase is realized, and the demulsification performance is improved.

The invention discloses a silicone oil-based magnetic liquid with low volatility and radiation resistance as well as a preparation method and application thereof, and relates to the technical field of nuclear reactors. The silicone oil-based magnetic liquid comprises nano magnetic particles, a modifier, a surfactant and a base carrier liquid, the nano magnetic particles are changed from water solubility to oil solubility under the action of the modifier, the surface of the nano magnetic particles modified by the modifier is coated with the surfactant, and the base carrier liquid comprises polymethylphenyl siloxane fluid. The silicone oil-based magnetic liquid prepared by the invention has the advantages of chemical inertness, thermal stability, oxidation resistance, low vapor pressure, low ignition point and the like of conventional silicone oil, also has better high temperature resistance, radiation resistance, lubricating property and dissolving property, has the working temperature of-50 DEG C to 250 DEG C, and is excellent low-volatility and radiation-resistant silicone oil-based magnetic liquid.

The invention relates to an oil-soluble viscosity reducer composition and a preparation method and application thereof.The oil-soluble viscosity reducer composition is formed by compounding alkyl pyridine and coker diesel oil and can rapidly permeate into thick oil, the viscosity of the thick oil is greatly reduced, and the fluidity of the thick oil is improved. When the oil-soluble viscosity reducer is used in heavy oil reservoir exploitation, storage and transportation processes, the use amount of thin oil for blending heavy oil with thin oil can be saved, the cost of the oil-soluble viscosity reducer is reduced, efficient exploitation, gathering and transportation of the heavy oil reservoir are guaranteed, cost-reducing and efficiency-increasing exploitation of the heavy oil reservoir is realized, and high-added-value comprehensive utilization of coker diesel oil is facilitated.

The invention provides an oil-soluble ionic liquid with anti-corrosion and anti-friction performance and a preparation method and application of the oil-soluble ionic liquid. Cation of the oil-soluble ionic liquid is quaternary phosphonium cation with different alkyl chain lengths and benzotriazole functional groups, and anion of the oil-soluble ionic liquid is dioctyl sodium sulfosuccinate. The preparation method of the ionic liquid comprises the following steps: mixing chloromethyl benzotriazole and trioctylphosphine, and carrying out quaternary phosphonium reaction to obtain benzotriazole functionalized trioctylphosphonium; and mixing the benzotriazole functionalized trioctylphosphonium with docusate sodium, and carrying out an ion exchange reaction to obtain the oil-soluble ionic liquid. The oil-soluble ionic liquid serves as a lubricating additive of base oil PAO10 and is applied to lubrication of a steel / steel friction pair, and experimental results show that the oil-soluble ionic liquid has good solubility in the base oil PAO10, has excellent antifriction and antiwear performance on a steel / steel friction pair interface and also has a good corrosion inhibition effect on the friction pair interface.

The invention relates to the technical field of battery negative electrode materials, in particular to irregular spherical porous carbon and a preparation method and application thereof, and a silicon-carbon composite material and a preparation method and application thereof. The liquid phenolic resin is emulsified, compounded, cross-linked and cured under the condition of an oil-soluble and water-soluble compound emulsifier, meanwhile, the shape of the obtained resin is changed in an ultrasonic-assisted mode under the combined action of ultrasonic disturbance and different interfacial tensions, spherical resin is adjusted into irregular spherical resin, and the spherical resin is prepared into the irregular spherical resin. And performing pyrolysis and gas activation to obtain the irregular porous spherical carbon. Compared with spherical carbon, the irregular spherical carbon prepared by the invention has the advantages that on the premise of keeping the strength of the spherical carbon, the irregular spherical carbon can increase the contact area between carbon particles and a binder, and the carbon particles and the binder are not easy to separate, so that the cycling stability of a battery (especially a lithium ion battery) is improved.

The invention discloses a method for preparing acid sophorolipid, and belongs to the technical field of biological fermentation. According to the method, candida is used as a fermentation strain, a composite carbon source culture medium containing a water-soluble carbon source and an oil-soluble carbon source is adopted, and the content of residual oil is monitored in real time in the fermentation process; when the residual oil content exceeds a threshold value of 5g / L, the emulsifying agent of 0.1 g / L-0. 5g / L is supplemented, and the stirring rotating speed is increased by 20-50rpm, so that the emulsification of an oil phase and the utilization of the thalli on the oil-soluble carbon source are promoted. By accurately controlling the residual oil content in the fermentation process, the proportion of the acidic sophorolipid and the carbon source conversion rate are remarkably increased, the proportion of the acidic sophorolipid is increased to 60% from 30% of a traditional process, the carbon source conversion rate is increased to 65% from 40%, the problems that the increasing means of the proportion of the acidic sophorolipid is single, and the carbon source is wasted are effectively solved, and the method is suitable for industrial production. The method has the advantages of simple process, low cost, environmental protection and the like.

A treatment fluid for oilfield applications, such as matrix acidizing and acid fracturing. The treatment fluid is a two-phase fluid with an hydrophobic continuous phase and an at least partially dispersed water phase. The hydrophobic continuous phase can contain 1 ppm to 10 wt %, based on the total weight of the treatment fluid, of one or more types of oil-soluble DRAs having a weight average molecular weight greater than 200,000. The at least partially dispersed water phase can contain water and one or more reactive acids having a pH of 4 or less than 4.

Provided is a cosmetic which has excellent water resistance and is capable of achieving a high ultraviolet protection effect. A cosmetic containing (A) an oil-soluble film-forming agent, (B) a water-soluble film-forming agent, (C) an oil-soluble thickening agent, (D) an ultraviolet absorber, (E) an oil component, and (F) water.

The invention discloses conductive lubricating grease and a preparation method thereof, and belongs to the technical field of lubricating grease materials, the conductive lubricating grease comprises the following components by mass: 50-80 parts of base oil, 5-15 parts of a thickening agent, 3-10 parts of an additive, 5-20 parts of an oil soluble ionic liquid, and 1-10 parts of nanoscale conductive solid particles; the oil-soluble ionic liquid is prepared from trioctylamine, bromohexadecane and sodium di-tert-butyl phosphate. According to the conductive lubricating grease provided by the invention, the oil-soluble ionic liquid and the nanoscale conductive solid particles synergistically conduct electricity, so that the conductive lubricating grease has a tunnel conductive effect and excellent conductivity; besides, due to synergistic conduction of the oil-soluble ionic liquid and the nanoscale conductive solid particles, the addition amount of the conductive solid particles can be reduced, the anti-attrition effect of the conductive lubricating grease is further improved, meanwhile, the nanoscale conductive solid particles have a good anti-attrition effect, the solid size and the oil film thickness are both in nanoscale sizes, and the conductive lubricating grease has a good anti-attrition effect. Therefore, the conductive lubricating grease is excellent in overall anti-wear effect.

The invention relates to a string maintenance nanoemulsion and a preparation method thereof, and belongs to the technical field of string maintenance. The nanoemulsion comprises polysorbate 80 and sorbitan stearate 60 as main emulsifiers, glyceryl monostearate, cetyl alcohol and stearyl alcohol as auxiliary emulsifiers, liquid paraffin and xanthan gum for adjusting the consistency, chitosan-loaded sodium hyaluronate nanoparticles as a long-acting humectant, and glycerol and propylene glycol as humectants and also can be used as anti-freezing agents. Ethylparaben is used as a preservative; and essence and the balance of water can be selectively added. Uniformly mixing and stirring the water-soluble components; uniformly mixing and stirring oil soluble components; and adding the oil phase into the water phase, stirring to form primary emulsion, emulsifying, homogenizing, cooling, and adding essence to obtain the product. According to the invention, the chitosan-loaded sodium hyaluronate nanoparticles are introduced to realize long-acting moisturizing and moistening of strings, and have the advantages of fine and soft texture and the like.

The invention discloses a preparation method of a compound menthol ointment. The preparation method comprises the following steps: preparing menthol and / or camphor microcrystals: coating the microcrystals with a wall material to obtain microcapsules; and mixing the menthol with a matrix and other oil-soluble active ingredients to prepare the compound menthol ointment. Camphora and / or menthol crystal grains with the average particle size of 1-10 microns are obtained by adopting a solvent replacement recrystallization method, the microcapsule is prepared by taking the camphor and / or menthol crystal grains as a core material, and after the microcapsule is broken, the oil-soluble component or skin grease of an outer matrix slowly dissolves the crystal grains, so that the camphor and / or menthol component slowly contacts with air, the volatilization of the camphor and / or menthol component is slowed down, and the effect of improving the quality of the microcapsule is achieved. Therefore, the cool skin feeling effect is prolonged.

The invention relates to a flame-retardant dry cleaning medium composition and application thereof. The flame-retardant dry cleaning medium composition comprises a dry cleaning solvent, a flame retardant and a builder. The dry cleaning medium composition provided by the invention not only has the advantage of flame retardance, but also is relatively high in safety, relatively safe to human bodies and environments, capable of removing water-soluble stains and oil-soluble stains at the same time, simple in operation steps and beneficial to household popularization.

The invention discloses an oil-soluble composition containing recombinant collagen. The composition comprises recombinant collagen, a polyhydroxy compound, grease, an emulsifier and water. The invention also provides a preparation method of the composition. The composition disclosed by the invention has the characteristics of good transparency, high drug loading capacity, good adaptability and good stability.

The invention discloses a composite gel particle plugging agent for plugging steam channeling as well as preparation and application of the composite gel particle plugging agent. Belongs to the technical field of oilfield chemistry. The plugging agent disclosed by the invention has a triple combination structure of'rigid inorganic core-elastic gel shell-oil soluble surface layer ', and the elastic gel shell permeates through a cross-linked network and is chemically anchored in a porous structure of the core to form an organic-inorganic interpenetrating interface. The surface modifier is an oil soluble polymer. The plugging agent disclosed by the invention realizes cooperation of rigid support, elastic plugging and flexible selectivity, so that after the plugging agent is aged for 7 days in a steam environment with the temperature of 300 DEG C and the mineralization degree of 20 * 10 < 4 > mg / L, the volume retention rate is greater than or equal to 85%, the single-particle compressive strength is greater than or equal to 1.5 MPa, and the ratio (selectivity index) of the plugging rate to a water-phase channel to the damage rate to an oil-phase channel is greater than or equal to 7.0; the technical problems that an existing plugging agent is prone to failure under the extremely high temperature and high salt, the plugging strength is low, and flexible selectivity is lacked are effectively solved.

The invention belongs to the field of new daily chemical materials, and discloses a sunscreen microbead gel composition based on interfacial tension regulation, which comprises a gel-state water-based continuous phase and an oil-based dispersion phase containing an oil-soluble sunscreen agent, the oil-based dispersion phase is composed of a plurality of microbeads with the particle size of 0.5-2 mm; the surface tension of the water-based continuous phase is 40 to 65 dyn / cm; the weight of the oil-based dispersion phase is not less than 10% of the total weight of the sunscreen microbead gel composition. According to the scheme, an oil-based dispersion phase is dispersed into gel to form suspended bead gel, and by controlling the particle size, the surface tension and the volume content of the beads, all the beads can be synchronously broken after the gel is coated on the skin, so that the oil phases in the beads can be spread at the same time, and meanwhile, a good coating hand feeling is kept; the composition provided by the invention can realize relatively low ultraviolet transmittance. Meanwhile, the invention further provides application and cosmetics of the composition.

The invention provides mesophase pitch and a preparation method thereof, and relates to the technical field of deep processing of petroleum. The method comprises the following steps: by taking aromatic hydrocarbon-rich heavy oil as a raw material, introducing a proper cross-linking agent, synthesizing an oligomer with a weak magnetic triarylmethane structure through low-temperature catalytic polycondensation reaction, enriching and separating the oligomer with the triarylmethane structure by matching with a strong magnetic field under the condition of negative pressure, and then taking the aromatic hydrocarbon-rich heavy oil as a raw material to synthesize the aromatic hydrocarbon-rich heavy oil. And introducing an oil-soluble fluorine-containing complex as a catalyst, and promoting further polycondensation of the oligomer with the triarylmethane structure through a two-stage catalytic polycondensation reaction under a negative pressure condition to form polycyclic aromatic hydrocarbon macromolecules with high molecular weight. According to the process, a triarylmethane structure is successfully introduced into mesophase pitch molecules, so that the spatial configuration and the stacking state of the pitch molecules are improved, and the spinning performance of the mesophase pitch and the mechanical property of the carbon fiber are remarkably improved.

The invention relates to a method for manufacturing a super-hydrophobic PVC (polyvinyl chloride) pipe based on a phase separation pore-forming technology. According to the method, graded pores are constructed through compounding of a pore-forming agent system, water solubility and oil solubility in a synergistic manner; then ensuring that the pore-forming agent accurately positions the inner wall by utilizing an extrusion directional enrichment technology; a toxic solvent is replaced by aqueous medium phase separation; and finally, the coating is prevented from falling off through in-situ hydrophobization. A solution with high performance, low cost and zero pollution is provided for the super-hydrophobic pipe.

The invention provides a thick oil chemical viscosity reduction effect prediction method of an oil-soluble viscosity reducer. The method comprises the following steps: acquiring the viscosity and actual viscosity reduction rate of various oil-soluble viscosity reducers; constructing a relation curve between the viscosity of the oil-soluble viscosity reducers and the actual viscosity reduction rate; performing data fitting on the relation curve to obtain a thick oil chemical viscosity reduction effect prediction formula of the oil-soluble viscosity reducer; and substituting the viscosity of the oil-soluble viscosity reducer to be evaluated into the thick oil chemical viscosity reduction effect prediction formula of the oil-soluble viscosity reducer to obtain a corresponding predicted viscosity reduction rate. Based on the viscosity and the viscosity reduction effect of a common oil-soluble viscosity reducer, the viscosity reduction effect relation curve of the oil-soluble viscosity reducer is constructed, so that the viscosity reduction effect of the oil-soluble viscosity reducer is accurately predicted, and the operation is simple and convenient.

The invention provides an oil-soluble composition as well as a preparation method and application thereof. The oil-soluble composition according to the present invention comprises: a functional component in an amount of 25 parts by weight or less; phospholipid, the content of which is 1-10 parts by weight; and an unsaturated fatty acid, in which the functional component has an unsaturated olefin and an electron withdrawing group.

The invention relates to the field of drilling fluids for petroleum drilling, and discloses a nano-micron deformation blocking agent as well as a preparation method and application thereof. The plugging agent comprises a core and a shell wrapping the core. Wherein the core is an inorganic micron material and an inorganic nano material, the shell is a network polymer, and the network polymer comprises a structural unit provided by a cross-linking agent, a structural unit provided by a hydrophobic monomer and a structural unit provided by an oil-soluble hydrophilic monomer. The nano-micron deformation plugging agent provided by the invention can be deformed under pressure, improves plugging of different sizes of nano-micron apertures of a stratum, reduces invasion of filtrate, and plays an important role in solving borehole wall instability of a long horizontal section broken stratum and improving stratum pressure bearing.

The invention relates to the technical field of rubber performance detection, in particular to a detection method and system based on analysis of thermo-oxidative aging resistance of an anti-aging agent and a computer program. The method comprises the following steps: putting rubber samples containing different anti-aging agents into a thermo-oxidative aging oven, and aging at 100 DEG C for 48-168 hours; cleaning and drying the aged sample by using an oil-soluble solvent and ethanol; the method comprises the following steps: cutting a sample into a specified size, and scanning in an XPS vacuum system; acquiring XPS data of the sample before and after aging by setting related test parameters; and processing the data by using peak splitting software, and calculating the sum of C-O / C = O peak areas so as to evaluate the thermo-oxidative aging resistance of the anti-aging agent. The method has the advantages of being high in detection speed, accurate and reliable in data, simple and convenient to operate, wide in application range and the like, can effectively assist in optimization of the anti-aging agent formula of the rubber product, and improves the durability and the performance stability of the product.

The present invention relates to a method for preparing an oil-soluble ionic liquid-carbon point eutectic, comprising the following steps: (1) preparing an ionic liquid: first adding n-butylamine to an excess of anhydrous ethanol and then dropping diisooctyl phosphate, or first adding n-octylamine and then dropping palmitic acid; then rapidly stirring the resulting solution at room temperature for 12 hours, rotary evaporation, vacuum drying, to obtain an ionic liquid diisooctyl phosphate n-butylammonium or palmitic acid n-octyl ammonium in a solid state at room temperature; (2) preparing carbon points: dodecylamine, anhydrous AlCl3 and o-dichlorobenzene oil bath pyrolysis to obtain carbon points; (3) preparing an ionic liquid-carbon point eutectic: adding 3 wt.%~10 wt.% of carbon points to the ionic liquid, then adding an excess of anhydrous ethanol, ultrasonically dissolving, vacuum drying, to obtain the corresponding ionic liquid-carbon point eutectic. At the same time, the present invention also discloses the application of the ionic liquid-carbon point eutectic. The preparation method of the present invention is simple, and has good oil solubility and room temperature fluidity as a lubricating oil additive.

The invention provides a leakage plugging construction method for injecting soluble polyurethane into an inclined hole in an upstream face of a deformation joint. The leakage plugging construction method comprises the steps of pretreatment, inclined hole positioning and drilling, grouting plugging, epoxy resin reinforcement and the like. And drilling holes at an inclination angle of 30-45 degrees, grouting oil-soluble polyurethane slurry at intervals from bottom to top in a jumping manner, and reinforcing by adopting epoxy resin after grouting to form a composite waterproof layer. The method further comprises reinforcing measures such as brushing of polyurethane waterproof paint, installation of a water stop belt and a drainage box, laying of waterproof coiled materials and the like. The construction environment needs to be dry and free of clear water, and the temperature is larger than or equal to 5 DEG C. And finally, recovering the decorative layer and the electromechanical equipment, and verifying through a 48-hour closed water test. According to the method, the inclined hole grouting technology and composite waterproof layer construction are utilized, the slurry diffusion uniformity and permeability are improved, the plugging efficiency is enhanced, the waterproof layer with high strength and good flexibility is formed, the method adapts to the special working condition of the subway tunnel, the waterproof performance of the deformation joint is remarkably improved, and the service life of the deformation joint is remarkably prolonged.

The invention discloses an intelligent tracer liquid production profile transient monitoring interpretation system and interpretation method, and relates to the technical field of oil and gas exploitation, the system comprises a tracer deployment module, a wellhead sampling module, a transient flow simulation module and an interpretation analysis module; according to the method, intelligent chemical tracer deployment and transient flow model analysis are combined, non-intervention type monitoring is achieved by pre-burying the oil-soluble / water-soluble inert tracer on the outer side of the horizontal well completion pipe string, and the limitation that traditional production logging needs downhole operation is broken through; a full-flow one-dimensional single-phase transient flow model covering a horizontal shaft, an inclined well section and a surface pipeline is established, pressure flow distribution is iteratively solved by adopting a discrete difference method, a tracer group flushing model and an arrival model are connected in parallel, and the liquid production speed and profile contribution of each production layer are accurately analyzed by inverting wellhead high-frequency sampling data. Real-time dynamic monitoring under complex well conditions can be achieved, production interference is avoided, and the inert tracer is resistant to high temperature and corrosion environments and wide in applicability.

The invention provides a gas engine lubricating oil composition and a preparation method thereof. The gas engine lubricating oil composition of the present invention comprises: (A) an alkyl phosphate compound; (B) alkylated diphenylamine; (C) a polyisobutylene succinic acid pentaerythritol ester dispersing agent; (D) a salicylate and / or sulfonate; (E) zinc dialkyl dithiophosphate; (F) an oil-soluble organic molybdenum friction modifier; (G) a metal corrosion inhibitor; (H) a pour point depressant; (I) a major amount of a lubricating base oil. The gas engine lubricating oil composition disclosed by the invention has excellent high-temperature oxidation resistance, cleaning performance, extreme pressure anti-wear performance and anti-corrosion performance.

The application provides a formula system and a preparation method for improving the solubility and stability of ceramide NP, and belongs to the cosmetic field.The formula system comprises: an active ingredient, an emulsifier, a thickening agent and a solvent; the active ingredient is ceramide NP; the emulsifier comprises at least one of an anionic emulsifier, a natural polymer emulsifier, a non-ionic emulsifier and a phospholipid emulsifier; and the solvent comprises water, a polyhydric alcohol and an oil-soluble solvent.The formula system has an unexpected technical effect of greatly improving the stability of an oil-in-water cosmetic containing more ceramide NP by selecting suitable emulsifiers, thickening agents and solvents.

The invention provides a semi-interpenetrating network polymer plugging agent for drilling fluid and a preparation method and application thereof, and the preparation method comprises the following steps: 1) mixing an oil-soluble monomer A and an oil-soluble polymer B, and completely dissolving the oil-soluble polymer B to obtain an oil phase; 2) mixing an emulsifier A, an emulsifier B, a water-soluble organic monomer C and water to obtain a water phase; 3) mixing 65-70% of the oil phase and the water phase, and emulsifying to obtain an emulsion reaction mixed solution; (4) carrying out heat-preservation polymerization on the emulsion reaction mixed solution and a section of initiator to obtain a polymerized emulsion; and 5) continuously carrying out heat preservation polymerization on the polymerized emulsion, 30-35% of the remaining oil phase, a cross-linking agent and a second-stage initiator to obtain the semi-interpenetrating network polymer plugging agent. The plugging agent has temperature resistance, elastic deformability and cohesiveness, the temperature resistance can reach 180 DEG C, the plugging agent is good in compatibility with oil-based drilling fluid and water-based drilling fluid, the filtration loss reduction and plugging effects are obvious, and the plugging agent can be used for plugging high-temperature strata; and the adhesive wall protection effect is also achieved.