39 results about "Chemical Actions" patented technology

The invention belongs to the technical field of filtering membrane materials, and particularly relates to a polymer membrane material as well as a preparation method and application thereof. The polymer film material provided by the invention is prepared from the following preparation raw materials in percentage by mass: 10 to 18 percent of film-forming polymer, 0.1 to 22 percent of alkenyl monomer, 0.1 to 3 percent of initiator, 0.1 to 22 percent of coupling agent and 35 to 89.7 percent of organic solvent, the alkenyl monomer comprises an alkenyl hydrophilic monomer and an alkenyl siloxy monomer. The polymer formed by the alkenyl monomer through in-situ polymerization is physically wound with the film-forming polymer, so that the hydrophilicity and pollution resistance of the polymer film material are improved; the coupling agent is pre-embedded in a membrane casting solution to serve as a subsequent reaction anchor point, the coupling agent can serve as a uniformly-distributed network node to be quickly coupled and crosslinked through chemical action in the phase separation curing process, and a hydrophilic modifier easy to segregate and dissolve out is locked in the polymer membrane by taking covalent acting force as internal driving force for inhibiting segregation, so that the stability is improved.

The invention belongs to the field of indoor environment health research, and particularly relates to a method for effectively representing a volatile organic compound (VOCs) release mechanism of an indoor material under long-term physical and chemical action. According to the method, accurate and effective characterization of the long-term release characteristic of the material is realized by simplifying a complex physical and chemical coupling problem and combining an aging test and a parameter determination experiment. The method comprises the following steps: designing a natural aging experiment to simulate an actual long-term release process of a material; extracting material samples with different aging times, and determining corresponding VOCs key parameters by utilizing an environment chamber experiment; and fitting the change of the key parameters along with time by using a single exponential function so as to characterize the long-term release characteristic of the VOCs in the material. The method is suitable for material-VOCs combined release research under different temperature and humidity conditions, and results can be used for long-term concentration prediction of indoor VOCs in a dynamic environment and further applied to reasonable material selection in building design, ventilation design in specific space and time, health risk assessment and the like.

The invention discloses a uranium ore in-situ leaching mining multi-field coupling simulation method, device, equipment and medium, and relates to the field of in-situ leaching uranium mining. According to the uranium mine in-situ leaching mining multi-field coupling simulation method, the device, the equipment and the medium, in-situ leaching uranium mining reactive solute transport control of sandstone type uranium mine reservoir stress-seepage-chemical action is considered, and the influence of fluid temperature in the uranium mine reservoir and reservoir damage in the in-situ leaching process on in-situ leaching mining is emphatically considered; a distribution function is adopted to represent heterogeneity of mechanical parameters, so that a seepage-chemical-temperature-damage full-coupling numerical model suitable for sandstone type uranium mine CO2 and O2 in-situ leaching is established, and leachate uranium concentration data obtained through simulation calculation is compared with uranium concentration data of an on-site leaching test; the full-coupling numerical model is optimized to obtain a reasonable mathematical model to predict the parameter change trend in the CO2 and O2 in-situ leaching uranium mining process, and important guiding significance is provided for optimization of site scale CO2 and O2 in-situ leaching mining.

The invention relates to the technical field of chemical mechanical polishing, in particular to a polishing solution and a preparation method thereof, and the polishing solution comprises the following components by weight: 600-850 parts of silica sol; 2-6 parts of a metal chelating agent; 3-7 parts of a pH regulator; 0.01 to 0.10 part of a surfactant; 1-10 parts of organic amine; 125 to 380 parts of deionized water; the surfactant is selected from at least one of fatty alcohol ether phosphate, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether. According to the polishing solution provided by the invention, through the synergistic effect of the surfactant and other components in the polishing solution, not only is the removal rate improved, but also a corrosion inhibition protection layer can be formed on the surface of a silicon wafer, and chemical corrosion generated on the surface of the silicon wafer due to too strong chemical action is reduced, so that the surface of the silicon wafer is prevented from being damaged; therefore, the polishing quality is improved while the removal rate is increased.

The invention discloses a preparation method of an ionic liquid modified metal organic framework material and sulfur dioxide / carbon dioxide adsorption separation application, and belongs to the field of metal organic frameworks and gas adsorption separation. A series of high-polarity ionic liquid containing hydrophobic chains is introduced into stable MIL-101-Cr with high BET in a post-modification mode, the chemical action between the adsorbent and SO2 with high polarity is enhanced, the maximum difference of the physical properties of SO2 and CO2 is achieved, and the adsorption capacity and adsorption selectivity of the adsorbent are improved. The thermal and chemical stability of the series ionic liquid modified MIL-101-Cr is good, the series ionic liquid modified MIL-101-Cr shows excellent adsorption selectivity and adsorption capacity under the conditions of high-concentration SO2 (SO2: CO2 = 50: 50) and low-concentration SO2 (SO2: CO2 = 1: 99) at room temperature, and the SO2 adsorption selectivity of the modified MIL-101-Cr is nearly two times higher than that of a parent material MIL-101-Cr. The ionic liquid functionalized metal organic framework material provided by the invention provides a new thought for efficiently capturing SO2 in industrial flue gas.

The invention belongs to the field of recycling of waste ardealite and green low-cost synthesis of metal-organic framework (MOF) materials, and discloses a method for preparing a UTSA-280 material from ardealite, which comprises the following steps: (1) carrying out dry reaction on squaric acid and a solid strong alkali compound under the mechanochemical action to obtain squarate; and (2) carrying out dry reaction on ardealite and the squarate obtained in the step (1) under the mechanochemical action again, and centrifuging, washing and drying the product after the reaction to obtain the UTSA-280 material. According to the invention, phosphogypsum is used as a raw material, and the classical important MOF material with high added value, namely UTSA-280, can be prepared through simple and convenient process treatment, such as a two-step mechanochemical reaction (such as a two-step ball milling method), and particularly, the MOF material can be prepared in a green and low-cost manner under the conditions of normal temperature and normal pressure. The invention provides a new way for upgraded chemical recycling of phosphogypsum.

The application discloses a kind of composite heavy metal pollution site three-dimensional identification and earthwork volume estimation method and system, and it is related to computer data processing technical field.Target site survey data is obtained and engineering voxel space resolution is set, and the chemical action parameter between heavy metals is extracted to construct composite spatial variation function.Three-dimensional distribution model is constructed using three-dimensional space interpolation, and preliminary pollution spatial grid set is extracted according to risk control threshold discretization.Boole logic operation is introduced to cross screen out single and composite heavy metal pollution area, and three-dimensional engineering boundary is obtained by boundary topology reconstruction with minimum mechanical construction envelope as constraint, and then the corresponding pollution total volume is estimated using spatial volume integration algorithm.The application can output three-dimensional boundary with engineering excavation continuity and realize accurate estimation of various pollution quantities.

The application relates to an oil field pipeline siliceous scale cleaning agent and a preparation process thereof, and relates to the technical field of oil field pipeline maintenance and chemical cleaning. The agent comprises the following components: an interfacial active component 5-8%, a chelating agent 15-20%, a complex conversion agent 10-12%, a pH regulator 3-5%, a biodegradation promoter 2-3%, and deionized water 52-65%. The pH value of the agent system is 8-10. The oil field pipeline siliceous scale cleaning agent is matched with interfacial active components, chelating agents, complex conversion agents and various functional components to form a mutual cooperation relationship. Under the synergistic effect of the interfacial action and the chemical action, the effect of the cleaning agent can be improved, the industrial descaling and cleaning efficiency is greatly improved, the discharge of the agent meets the national environmental protection discharge standard due to the biodegradation promoter, the traditional agent is prevented from polluting the environment, the weak alkaline pH regulator has no corrosion effect on commonly used equipment substrates such as carbon steel, stainless steel and enamel, the equipment is not damaged in the descaling process, and the service life of the equipment is prolonged.

The invention relates to a silicon material high-flatness CMP (chemical mechanical polishing) processing mode, which belongs to the technical field of semiconductors, and comprises the following operation steps of: 1, before a CMP mechanical polishing process, optimizing the structure and the material of polishing cloth, and manufacturing the polishing cloth by using a material with better elasticity and wear resistance, so that the stability and the durability of the polishing cloth in the polishing process can be improved; and secondly, in the CMP mechanical polishing process, polishing parameters are adjusted to improve flatness, increase polishing pressure and improve the material removal rate, but the polishing rotating speed and time need to be adjusted at the same time so as to prevent the surface roughness from being increased. And thirdly, the formula of the polishing solution is optimized, the chemical reaction rate and the material removal rate in the polishing process are adjusted, and therefore higher flatness is achieved. The structure, the material, the mechanical action and the chemical action of the polishing cloth are deeply analyzed, and a new perspective is provided for understanding physical and chemical mechanisms in the polishing process.

A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and / or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and / or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and / or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.

The application belongs to the technical field of filter membrane materials, and particularly relates to a polymer membrane material, a preparation method and application thereof. The polymer membrane material comprises the following mass percentage of raw materials: 10-18% of a film-forming polymer, 0.1-22% of an alkenyl monomer, 0.1-3% of an initiator, 0.1-22% of a coupling agent and 35-89.7% of an organic solvent; the alkenyl monomer comprises an alkenyl hydrophilic monomer and an alkenyl siloxyl monomer. The alkenyl monomer is physically entangled with the film-forming polymer through in-situ polymerization, so that the hydrophilicity and the antifouling property of the polymer membrane material are improved; the coupling agent is pre-embedded in the casting solution as an anchor point for subsequent reaction, and in the phase separation and solidification process, the coupling agent can be used as a uniformly distributed 'network node' to rapidly couple and crosslink through chemical action, so that the covalent force is used as an internal driving force to inhibit segregation, and the hydrophilic modifier which is prone to segregation and dissolution is locked in the polymer membrane, so that the stability is improved.

The invention discloses a high-performance low-temperature curing powder coating and a preparation method thereof, and belongs to the technical field of powder coating. The raw materials of the powder coating include: 80-90 parts of acrylic resin, 10-20 parts of epoxy resin, 20-30 parts of curing agent, 10-20 parts of filler, 5-10 parts of pigment, 4-8 parts of auxiliary agent, 4-6 parts of photoinitiator, 2-6 parts of degassing agent, 1-1.5 parts of tetrabutylammonium-di[methylphenyl disulfide] complex copper, 0.2-0.8 parts of leveling agent, 0.8-1.2 parts of antioxidant, and 0.2-0.4 parts of benzoin. There is a chemical reaction between the filler and the auxiliary agent containing nitrogen, phosphorus and silicon elements, and there is a chemical reaction between the auxiliary agent and the acrylic resin, and the three constitute a hybrid cross-linked network, so the powder coating is heat-resistant and high-temperature-resistant, and has an excellent and stable flame retardant effect. The auxiliary agent synergizes with the degassing agent, the leveling agent, etc., so that the powder coating has a low curing temperature, a fast curing speed and an excellent leveling effect.

The invention discloses an experiment system and method for interaction of liquid fuel high-pressure combustion flames and a wall surface, and relates to the technical field of engines, different working conditions in an engine are simulated through a controllable combustion reaction cavity adjusted in a high-pressure range, and the collision process of the flames in an engine cylinder and the wall surface is simulated through a flat plate slit combustor. Meanwhile, an electrical automatic control device is adopted to control variable conditions in a combustion experiment, and systematic research on the flame-wall surface physical and chemical reaction process is achieved. According to the experimental system, the stability, flame structure and pollutant emission of the efficient combustion process of the engine within extremely short time can be deeply studied. Besides, the experimental device integrates and adopts the Internet of Things technology, so that the operation is simple and convenient, the experimental data is visualized, the physical and chemical action mechanism between the gas-phase flame and the solid-phase wall surface is disclosed, and important reference is provided for the improvement and the structural optimization of the efficient and clean combustion technology of the engine.

The invention relates to a super-three-dimensional fancy glaze and a preparation process thereof, and belongs to the technical field of ceramic glaze preparation. The vitrification degree of the glaze is improved by modifying the potassium feldspar, magnesium chloride and calcium nitrate are introduced through a grinding method to form a new compound, chemical adsorption occurs on the surface of the potassium feldspar compound through treatment in a boric acid solution and a CTAB solution, and a new interface layer is formed; the potassium feldspar compound can reach a molten state at a relatively low temperature; the silane coupling agent forms an organic layer on the surface of the talcum powder through chemical action, so that the structure of the glaze layer is optimized, the sintering process is promoted, the required formula temperature is reduced, and the prepared glaze layer has better wear resistance; in the invention, the rigidity of the hard module and the flexibility of the elastic module are combined, and after the hard module is treated, the elastic module is used for supplementary polishing, so that the prepared super-three-dimensional fancy glaze finished product has better texture.

The invention discloses a cleaning method for a semiconductor photoetching mask substrate, and belongs to the technical field of semiconductor manufacturing. According to the method, dynamic cleaning logic of step cooperation and energy matching is adopted, and the steps of interface wetting and pre-cleaning, chemical soft interface construction, low-damage mechanical stripping and synchronous washing, targeted reaction clearing, microstructure deep cleaning, interface dehydration and modification and final energy-assisted drying are sequentially executed. The method is characterized in that through the dependency relationship of chemical interface softening and low-damage mechanical stripping in sequence, the rotation speed of a substrate in each step is strictly controlled to meet the specific dynamic relationship (V2 < V1 < V4 < V3 < V5 < V6), and precise cooperation of chemical action, physical stripping and energy field cleaning is achieved. The contradiction between efficiency and substrate damage in a traditional cleaning process is effectively solved, full-scale pollutants from micron-scale particles to nano-scale molecular contamination can be removed without dead corners, and a clean, stable and secondary pollution resistant surface state is actively reconstructed at a cleaning end point; and the cleanliness and the service life of the mask substrate and the yield of a downstream photoetching process are remarkably improved.

This invention relates to the field of microcapsule preparation technology, and more particularly to a method for preparing probiotic microcapsules. The invention involves mixing a probiotic suspension with a tris(2-carboxyethyl)phosphine solution and performing a reduction reaction to obtain a thiolized probiotic suspension. Then, a thiolized polysaccharide is mixed with the thiolized probiotic suspension and subjected to a covalent bonding reaction to obtain probiotic microcapsules. This invention uses a simple chemical reaction to reduce the disulfide bonds on the surface of probiotics to free thiols, enabling the thiolized polysaccharide and probiotics to covalently bind, resulting in a stronger bond between the polysaccharide and the probiotics. The microcapsules prepared from the modified polysaccharide and probiotics can also bind to the mucin-rich mucus layer in the intestinal lining, undergoing a catalyst-free thiol-disulfide exchange reaction, colonizing the mucus layer in the intestine, and producing better therapeutic effects for intestinal diseases and enhanced probiotic benefits.

Systems, devices, kits, and methods for detecting and quantifying targeted compounds within a liquid (such as urine) are provided. Such systems, devices, and methods may be autonomous, noninvasive, and provide quick and accurate results. The systems and devices are at least partially disposable (single-use) and configured to be embedded within or applied to a conventional diaper or the like. Methods for using the systems and devices hereof include receiving a liquid to be tested within a portion of a disposable device, allowing the liquid to traverse through one or more channels defined within the device in a controlled fashion, reacting the liquid with one or more chemical reagents, using a sensing unit to collect photocurrent data regarding the chemical reach on(s), and wirelessly transmitting that data to a computing unit for storage and quantitative analysis.

The invention discloses a method for efficiently extracting straw hemicellulose through physical and chemical synergistic reinforcement, and relates to the field of comprehensive utilization of crop straws. The method comprises the steps of raw material pretreatment, alkali liquor preparation and mixing, ultrasonic pretreatment, alkali liquor extraction, pH adjustment, supernatant separation and concentration, hemicellulose precipitation, separation post-treatment and the like, and the core is to destroy a straw cell wall structure by utilizing an ultrasonic cavitation effect through cooperation of an ultrasonic physical effect and an alkali liquor chemical effect so as to enhance the permeability and improve the hemicellulose separation efficiency. And connecting bonds of the hemicellulose and other components are dissociated in cooperation with low-concentration alkali liquor, and efficient separation and extraction of the hemicellulose are achieved. The extraction rate of the straw hemicellulose can reach 85% or above, the concentration of the used alkali liquor is only 0.5-10%, the extraction time is only 1-1.5 hours, and the chemical structure of the hemicellulose can be completely reserved. The method is easy to operate, low in cost, environmentally friendly, suitable for various raw materials such as corn straw and wheat straw and capable of being popularized on a large scale, and an effective technical scheme is provided for high-value utilization of straw biomass.

The application belongs to the technical field of materials, and particularly relates to a metal organic framework loaded zinc ricinoleate composite material and a preparation method and application thereof. The metal organic framework loaded zinc ricinoleate composite material comprises MOFs as a carrier, and zinc ricinoleate is loaded on the inner surface and / or outer surface of pores of the MOFs through a surface activator of the MOFs in physical adsorption and / or chemical action. The comprehensive performance of adsorption and reaction removal of volatile organic compounds (VOCs) such as formaldehyde, and odor pollutants such as ammonia and trimethylamine of the composite material prepared by the application is improved.

The invention discloses a chemical mechanical polishing solution containing molecular sieve particles, which is prepared by the following steps: S1, mixing the molecular sieve particles with deionized water to obtain a solution A; s2, dissolving an oxidizing agent in deionized water to obtain a solution B; and S3, mixing the liquid A with the liquid B, adding an auxiliary agent, and uniformly stirring to obtain the polishing solution. The chemical action in chemical mechanical polishing is promoted by utilizing the properties of acidity / alkalinity, high specific surface area, rich pore structure, ion exchange performance, doping of molecular sieve framework elements and the like of the molecular sieve, and the removal rate of various wafer materials can be greatly improved. The molecular sieve has strong acidity and can obviously improve the oxidation rate of various wafer materials, so that the removal rate is improved; the molecular sieve has a high specific surface area and a rich pore structure, and the high specific surface area can provide more active sites, so that the adsorption of reactants is facilitated; the abundant pore structure is beneficial to mass transfer and diffusion of reactants, and mass transfer bottlenecks are reduced.

This paper proposes a technique using modified water that facilitates the cleaning of device lumens. The modified water is used to generate a chemical reaction that reduces the adhesion of contaminants to the surfaces of the device lumens. A contaminant separation cleaning action is used in conjunction with the chemical reaction to separate the contaminants from the surfaces of the device lumens, thereby facilitating their removal from the device lumens.

The application discloses modified vanadium dioxide powder and a preparation method thereof, and belongs to the field of vanadium dioxide powder. The method for preparing the modified vanadium dioxide powder comprises the following steps: firstly, preparing VO2 with good crystallinity through a two-step method; then, improving the stability of the VO2 and increasing the number of hydroxyl groups on the surface of the VO2 through water bath modification; and finally, grafting or adsorbing a surface modifier on the VO2 under the mechanical chemical action of ball milling, so as to improve the dispersibility and stability. The VO2 nano-powder prepared by the method has good crystallinity, can isolate external air and moisture, and can enhance the acid resistance, oxidation resistance and environmental durability of the VO2 nano-powder.

The invention relates to the technical field of flotation preparation, in particular to a preparation method and application of a lepidolite mineral flotation inhibitor. The preparation process comprises the following steps: preparing citraconic anhydride; preparing a polymer monomer; preparing a copolymer; and preparing the lepidolite mineral flotation inhibitor. According to the invention, citraconic anhydride and sulfamic acid react to generate a copolymer monomer, the copolymer monomer can react with a specific chemical group on the surface of lepidolite to form a stable chemical bond or adsorption layer, and the specific chemical action enables the inhibitor to be more effectively adsorbed on the surface of lepidolite, so that the inhibition effect on lepidolite is improved; the flotation recovery rate of lepidolite is reduced, meanwhile, the influence on other minerals is small, the selectivity of the flotation process is improved, and therefore the recovery rate is increased.

The application discloses a kind of anthracite-based porous carbon materials and its gradient activation preparation method and application, it is related to carbon material preparation technical field, its technical scheme main point is: the inert surface of anthracite is broken under mild conditions by using low-temperature plasma in the present application, initial defect is introduced and in-situ doping is carried out;Then, the particles are refined by mechanical chemical action, and the sodium salt is uniformly embedded, providing a template for subsequent pore forming;Then, the gradient strategy of low-temperature steam opening and high-temperature expansion is used to cooperatively build a microporous, mesoporous hierarchical interconnected pore system;Finally, impurities are removed to obtain high-purity materials, the present application enables the finally prepared porous carbon material to have a high specific surface area of 1620-2080 m² / g, a suitable mesopore ratio of 62-72%, and a controllable nitrogen doping amount of 1.9-2.8 at.%.

Discovery of the first rare earth-dependent enzyme in methylotrophic M. extorquens AM1 prompted research toward understanding the unique chemistry at play in these systems. This enzyme, an alcohol dehydrogenase (ADH), features a La3+ ion closely associated with redox-active coenzyme pyrroloquinoline quinone (PQQ). AM1 also produces a periplasmic PQQ-binding protein characterized by a Lys residue hydrogen-bonded to PQQ. Accordingly, we prepared K115A-, and K115D-PqqT variants to assess the relevance of this site toward metal binding. Isothermal titration calorimetry experiments, and titrations monitored by UV-vis absorption and emission spectroscopies support that K115D-PqqT binds tightly (Kd=0.6±0.2 μM) to La3+ in the presence of bound PQQ and produces spectral signatures consistent with those of ADH enzymes. Addition of benzyl alcohol to La3+-bound PQQ⊂K115D-PqqT produces spectroscopic changes associated with PQQ reduction, and chemical trapping experiments reveal the production of benzaldehyde, supporting ADH activity.

The application provides a method and device for synthesizing Keggin type heteropoly acid salt, the method comprises the steps of reaction raw material preparation, microwave assisted ball milling synthesis and product collection, and the solid phase reaction is completed by using an intermittent cycle process of alternating microwave milling and microwave assisted milling. The mechanical chemical action and the microwave thermal field are cooperated to strengthen the intermolecular reaction efficiency, a small solvent reaction system is used to replace the traditional large liquid phase reaction medium, the reaction temperature is accurately controlled in time through the intermittent cycle to avoid excessive heating, and two feeding modes of direct mixing and uniform dropping are matched to cover the synthesis needs of multiple types of heteropoly acid salt, so that the reaction period is greatly shortened and the product reaction sufficiency is improved.

The invention discloses a method for preparing coal water slurry from coal chemical industry wastewater, and belongs to the technical field of wastewater recycling. The method comprises the following steps: adding a first complexing agent into the coal chemical wastewater, and uniformly stirring; adding a second complexing agent into the obtained solution, and uniformly stirring; continuously adding a dispersing agent; and mixing and stirring the obtained solution with pulverized coal. According to the method, different complexing agent systems are added in stages, so that metal ions in the wastewater can be preferentially treated, the metal ions do not need to be separated from the wastewater, the activity of the metal ions is shielded in situ through chemical action, the complex process of a pretreatment process is avoided, and the interference of the metal ions on the slurrying property can be accurately solved. Meanwhile, the method is low in implementation cost, environment-friendly and high in compatibility.

The invention discloses a cladding failure analysis method for metal fuel of a liquid sodium-cooled reactor, which comprises the following steps of: firstly, modeling a simulated reactor core according to structural parameters and operating parameters of the reactor, and calculating the component migration behavior of a metal fuel rod according to a one-dimensional diffusion model of a heat transport theory; by considering weakening of various chemical effects on mechanical strength of the cladding, a multi-group bubble fission gas behavior model is established to calculate fuel swelling and fission gas release amount, an improved ideal gas state equation is used to calculate fission gas cavity pressure, a fuel rod mechanical model is established to calculate mechanical behaviors of a fuel rod, and safety analysis parameters are calculated in real time. And judging whether the cladding fails or not according to a thermodynamic analysis result by adopting the cumulative life score. Compared with the prior art, the method has the advantages that various mechanism models are used, various factors influencing the cladding failure in the reactor irradiation process are considered, the stability and the calculation efficiency of a numerical algorithm are improved, and the cladding failure behavior of the metal fuel under serious accidents can be accurately and comprehensively simulated and analyzed.

The invention discloses a generalized effective stress calculation method considering a thermal-chemical effect and application of the generalized effective stress calculation method, and belongs to the technical field of geotechnical engineering.The generalized effective stress calculation method fully considers the influence of temperature and pollutant concentration on soil-water interaction on the basis of thermodynamics and conservation equations; the thermodynamic stress of liquid phases in a solid phase, a macroscopic pore and a microscopic pore of the double-porosity geotechnical material is accurately determined, and thermal pressurization related to temperature and generalized osmotic pressure related to pollutant concentration are fused into a liquid phase thermodynamic stress equation. On the basis, the method for calculating the generalized effective stress of the double-porosity geotechnical material considering the environmental load is successfully exported. By applying the generalized effective stress calculation method, the deformation behavior of the clay under the mechanical, thermal and chemical coupling loading condition is predicted, a solid theoretical foundation is built for the design of an anti-seepage buffer barrier in geotechnical engineering and the safety evaluation of geological environment engineering, and the method has important application value and practical significance.