94results about How to "The preparation method is simple and easy to obtain" patented technology

The invention provides a super-hydrophobic coating material, which comprises water or emulsifier or organic solvent, a polysiloxane compound having more than three silicon-hydrogen bonds and solid particles. The invention also provides the preparation method of the super-hydrophobic coating material and the preparation method of a super-hydrophobic coating. The invention provides the super-hydrophobic coating material which is prepared by a simple method, has high mechanical strength, is durable, practical and capable of self-cleaning and the preparation method of the super-hydrophobic coating material. The super-hydrophobic coating material provided by the invention can solidify in a wider temperature range and is applicable to substrates made of various materials such as metal, glass and high polymer materials.

The invention discloses a method for preparing iron-based amorphous alloy powder for dye degradation. According to the method, on the premise of meeting the market application requirements, combined with the existing process conditions in actual production, the iron-based amorphous powder is obtained by ultrasonic processing. The invention further discloses application of the amorphous powder after ultrasonic processing used for degrading dye waste liquid. In the process of degradation, different ultrasonic energy and powder dosage are considered specifically and correspondingly, and finally an optimal degradation processing condition is obtained. According to the method for preparing the iron-based amorphous alloy powder for dye degradation, not only is the dye waste liquid degraded, butalso the industrial waste iron-based amorphous powder is effectively utilized, good application prospects in sewage treatment are achieved, and the great significance to environmental protection and sustainable development is achieved.

The invention relates to the technical field of chemical engineering, in particular to high-conductivity nanometer heat conduction oil and a preparation method thereof. The high-conductivity nanometerheat conduction oil comprises the following components in parts by weight: 85 to 100 parts of base oil, 10 to 15 parts of a dispersing agent, 10 to 15 parts of an antioxidant, 2 to 5 parts of an anticorrosion agent, 2 to 4 parts of a metal passivator, 2 to 4 parts of an antifogging agent, 4 to 9 parts of silica powder and 0.5 to 1.5 parts of carbon nano tubes or graphene. The product is high in heat stability, high in heat efficiency, low in toxicity and high in safety; the production raw materials are simple and easy to obtain, safe, environmentally-friendly, simple in preparation method andwide in application.

The invention provides an amorphous calcium carbonate nanosheet material and a preparation method thereof. Tellurium nanowires are washed, and washed tellurium nanowires are obtained; then a tellurium nanowire solution is prepared from the washed tellurium nanowires, the tellurium nanowire solution, a carbon source and a calcium source have a reaction, and the amorphous calcium carbonate nanosheet material is obtained; the zeta potential of the washed tellurium nanowires is controlled to be smaller than or equal to minus 14 mV, the volume ratio of the tellurium nanowires to a first solvent is controlled to be (0.2-10):1, so that one-dimensional tellurium nanowire materials used as formworks can induce the calcium source to react with the carbon source, amorphous calcium carbonate is obtained, and the nanosheet material can be further assembled. Meanwhile, according to the preparation method, materials of the formworks are simple and easy to obtain, the preparation method is simple and controllable, and batch production is facilitated.

The invention discloses a nitrogen-containing borate lubricating oil additive and a preparation method thereof and belongs to the technical field of lubricating oil. The preparation method comprises the following steps: firstly weighing raw materials according to the molar ratio of boric acid to cetanol to ethanol amine of (0.5-1.2):(0.5-3):(1-5); then adding the boric acid and the cetanol according to the molar ratio, adding a solvent, reacting for 0.8-1.2 hours at a temperature of 115-125 DEG C, then adding the ethanol amine according to the molar ratio, reacting for 4-6 hours and then refluxing. A nitrogen boron complex prepared by the invention instantaneously forms a ceramic boron nitride molecular film with super-strong wear resistance in a molecular form under the actions of temperature and pressure in a locomotive, has the efficacies of efficiently saving energy, reducing noise, protecting environment and prolonging the service life of the locomotive, is particular crucial for non-selectivity to metals and does not corrode a rubber sealing part; the additive can also efficiently slow down the rate of lubricating oil temperature rise and has more excellent performance in the high-temperature, high-speed and heavy-load locomotive; moreover, the raw materials are easy to obtain, the preparation method is simple, the cost is low, the hydrolytic stability is high, and the anti-wear and antifriction performances are good.

The invention discloses a black fungus nutritional jelly which is prepared from the following raw materials in parts by weight: 68-75 parts of black fungus, 2-3 parts of white ginseng, 1-2 parts of Chinese wolfberries, 0.6-1.2 parts of boxthorn roots, 1.2-2.2 parts of red jujubes, 1.0-2.3 parts of sweet potatoes, 3-4 parts of xylitol, 1-2 parts of potassium sorbate, 2-3 parts of solid cream, 3-6 parts of coagulant aids, 4-7 parts of orange juice pulp, 4-8 parts of orange juice, 0.6-1.3 parts of essence and 0.6-1.0 part of honey. The black fungus nutritional jelly disclosed by the invention is comprehensive in nutrition, smooth in taste, free of chemical additive and safe and healthy in eating; a preparation method is unique and novel; the raw materials are simple and easy to obtain; and the black fungus nutritional jelly has the effects of invigorating qi and strengthening the body, dredging the intestines and stomach, lubricating the intestinal tract and preventing arteriosclerosis.

The invention discloses a nontoxic mosquito-repellent incense liquid and a preparation method thereof. The nontoxic mosquito-repellent incense liquid is prepared from following raw materials, by weight, 18 to 24 parts of cassia twig extract, 4 to 9 parts of mangosteen peel extract, 12 to 17 parts of folium cycadis revolutae extract, 90 to 100 parts of deionized water, and 95 to 110 parts of ethanol. The preparation method comprises following steps: the cassia twig extract, the mangosteen peel extract, and the folium cycadis revolutae extract are prepared respectively via ultrasonic treatment, centrifugation, condensation, and drying; the cassia twig extract, the mangosteen peel extract, the folium cycadis revolutae extract, deionized water, and ethanol are mixed, and an obtained mixture is sealed, and is stirred for 5 to 6h at 40 to 45 DEG C so as to obtain the nontoxic mosquito-repellent incense liquid. The nontoxic mosquito-repellent incense liquid is nontoxic, is capable of sterilizing, driving mosquito away, and improving sleep; the raw materials are easily available; cost is low; the preparation method is simple, and is convenient for industrialized production.

The invention discloses a wall of a light steel structural house. The wall is divided into an inner wall and an outer wall, wherein the inner wall is composed of gypsum boards, wall surface OSBs and alight steel keel, with the light steel keel as a bearing framework, the two sides of the light steel keel are each provided with one wall surface OSB, and the gypsum boards are located on the outermost layers; the outer wall is composed of a gypsum board, one wall surface OSB, a light steel keel, the other wall surface OSB, an insulating layer, a ventilation layer and an outer wall hanging platefrom inside to outside. The middle of each light steel keel is filled with a heat preserving and insulating material, a wood keel is arranged in the middle of the ventilation layer, breathing paper isattached to the surface, close to the insulating layer, of the ventilation layer, and all layers of the inner wall and the outer wall are connected together by cold-rolled steel nails from the two sides in a fastened mode. The wall is low in weight and good in wind and quake resistance, has good features of heat preserving and insulating, sound insulating, fire resistance, moisture prevention, corrosion prevention and the like, and can be widely applied to office buildings, villas, storehouses, stadiums, entertainment venues and tourism buildings.

The invention discloses a 3-amino-3-hydroxymethyloxindole derivative shown as a formula (I) and a preparation method thereof. The 3-amino-3-hydroxymethyloxindole derivative is obtained by taking 3-diazooxindole, aniline and formaldehyde as raw materials, taking rhodium acetate as a catalyst and taking an organic solvent as a solvent through a one-step reaction. The preparation method disclosed by the invention can be used for constructing a compound with a plurality of functional groups in one step, and has the characteristics of high flexibility, high selectivity, efficient atom economy, high yield and simplicity and safety in operation and the like. The invention further discloses an inhibition effect of the 3-amino-3-hydroxymethyloxindole derivative shown as the formula (I) on proliferation of five types of tumor cells including human osteosarcoma cells (SJSA-1), human colorectal cancer cells (HCT-116), hepatocellular carcinoma cells (BEL7402), human oral epidermoid carcinoma cells (KB) and human T-cell leukemia cells (Jurkat).

The invention discloses a preparation method of a non-formaldehyde adhesive for a thermal insulation material. Formaldehyde is not used as a raw material, the problem of formaldehyde release is solvedfundamentally, used raw materials are non-poisonous and harmless, environment protection and no pollution are really achieved, the adhesive can be applied to indoor rock wool and glass wool thermal insulation materials relievedly, and a user does not worry about the harm of chemical products. In addition, the prepared non-formaldehyde adhesive has the advantages of being high in bonding strength,good in water resistance, good in ageing resistance performance and the like, the raw materials are simple and easy to obtain, and the preparation method is simple.

The invention discloses a gulfweed polysaccharide-based edible packaging film. The packaging film comprises, by weight, 56-82 parts of wheat flour, 20-38 parts of gulfweed polysaccharides, 2-10 parts of sucrose, 0.2-0.3 part of active polypeptides, 2-10 parts of vegetables, 5-15 parts of eggs, 10-25 parts of chitosan and 2-10 parts of water, and a weight ratio of the gulfweed polysaccharides to the sucrose is (2-15):1. Materials daily eaten by people are adopted as the raw materials of the packaging film, so the produced packaging film can be used as a packaging film for foods and medicines, has good instant solubility and mechanical performances, also can be used as a food to relieve hunger, and can remove free radials on the surfaces of the foods, delay the oxidation time of the foods and facilitate the prolongation of the shelf life of the foods and the improvement of the quality of the foods when used for packaging fresh vegetables or meat products.

The invention relates to high-temperature well cementing cement and high-temperature well cementing cement grout. The high-temperature well cementing cement comprises cement clinker and gypsum, wherein the cement clinker comprises the following mineral components in percent by weight: 30-40% of tricalcium silicate, 45-60% of dicalcium silicate, 1-4% of tricalcium aluminate and 10-20% of tetracalcium aluminoferrite. Through optimization and matching of the mineral composition of a cement base material, the contents of the tricalcium silicate, the dicalcium silicate, the tricalcium aluminate andthe tetracalcium aluminoferrite as cement components are adjusted, so that the hydration progress of the cement better meets the high-temperature well cementing need; the high-temperature well cementing cement can effectively solve the problem of decay of high-temperature strength of set cement in deep and ultradeep well cementing engineering; the preparation method is simple and easy to obtain,can replace the existing high-temperature well cementing cement and the existing well cementing cement grout system can be replaced; the structural durability and the structural safety in high-temperature complex deep well cementing engineering are facilitated.

The invention relates to a lithium-sulfur battery positive electrode material and a preparation method thereof, in particular to a fiber carbon-based lithium-sulfur battery cathode material doped withFe3C nanoparticles and having a hollow vesicle structure. The preparation method comprises the following steps: firstly, preparing ferric oxide nanoparticles with regular shapes; uniformly and properly coating the particles into silk threads by using an electrostatic spinning method, pre-oxidizing and carbonizing the silk threads to finish the preparation, pulverizing the Fe2O3 particles with theparticle size of 140-750nm into fine Fe3C nanoparticles with the particle size of 5-10nm in the carbonizing process, and leaving hollow vesicles. According to the materials designed in the invention,the chemical adsorption effect of Fe3C is combined with the physical limitation of the hollow vesicles of the carbon fibers, polysulfide is adsorbed and fixed, a confinement space is provided, a goodion and electron transmission path is guaranteed, charge and discharge volume expansion is relieved, meanwhile, the conductivity of the material is improved through doped N atoms, and the overall electrochemical performance of the Li-S battery is improved.

The invention provides a preparation method of polyaniline-modified electrode for identifying dead-live cells, which solves the problems of the prior art such as complex and time-consuming process, or larger error, and difficulty in identifying dead and live cells and in online operation. The method is achieved via the following steps of: disposing a three-electrode system including home-made graphite powder-epoxy resin solid-state carbon paste as the basic electrode, a saturated calomel electrode as the reference electrode and Pt filament as the inter-electrode in aniline-containing sulfuric acid solution within a potential range of -0.45 to 1.0 V, carrying out cyclic volt-ampere scanning at a speed of 50 mV.s<-1> to electrochemically polymerizing aniline on the graphite powder-epoxy resin solid-state carbon paste to obtain polyaniline-modified electrode; and electrochemically processing the polyaniline-modified electrode to obtain the polyaniline-modified electrode for identifying dead-live cells. The invention has the advantages of easy preparation method, convenient operation and gentle experimental conditions. The modified electrode can be used for identifying, screening and separating dead and live cells, for counting live cells, and for monitoring the growth or usage process of cells in real time since the electrode can reversibly adsorb the live cells.

The invention provides a skin-brightening and moisturizing mask containing a Chinese kale extract. The formula comprises components in percentage by mass as follows: 0.1%-0.5% of the Chinese kale extract, 4%-12% of butylene glycol, 1%-3% of betaine, 0.1%-1% of a glyceryl polymethacrylate, propylene glycol and PVM / MA copolymer, 0.1%-0.3% of sclerotium rolfssii, 0.05%-0.15% of sodium polyglutamate, 0.01%-0.05% of sodium hyaluronate, 0.5%-1.5% of a yeast extract, 0.001%-0.01% of carnosine, 0.01%-0.1% of dipotassium glycyrrhizinate, 0.01%-0.1% of carbomer, 0.01%-0.1% of triethanolamine, 0.1%-1% of p-hydroxyacetophenone, 0.1%-1% of 1,2-hexanediol and the balance of pure water. The skin-brightening and moisturizing mask containing the Chinese kale extract has better whitening and antioxidant effects on skin and can recover the natural and healthy state of the skin if used for a long time.

The invention discloses a reaction type greasy base degradable surfactant as well as a synthetic method and application thereof. Polyether blocks and unsaturated double bonds are introduced in grease, so that the prepared degradable surfactant can be used for conventional emulsion polymerization and miniemulsion polymerization, as a result, stable polymer latex can be obtained. According to the invention, the price of production raw material is low, the preparation process is simple and feasible and environment-friendly, and a new approach is provided for the preparation of biodegradable latex.

The invention relates to gyphosate triammonium which is a compound shown as a structural formula IV. The invention also discloses a preparation method and theapplication of the compound in weeding, overcomes the poor water solubility of glyphosate acid, and completely neutralizes three acid groups of the glyphosate acid by ammonium ions to form gyphosate triammonium salt. The gyphosate triammonium has more excellent stability and greatly widens the use range of ammonium salt products of gyphosate. The conventional gyphosate monoammonium salt has lower solubility in water and is more sensitiveto the temperature and easy to generate the phenomena of icing and freezing during warehousing. The gyphosate triammonium salt provided by the invention has higher solubility in the water and reducesthe sensitiveness to the temperature. During warehousing at low temperature, gyphosate triammonium salt water aqua still stabilizes, greatly improves the adaptability of the product, and widens the use range of the products.

The invention belongs to the technical field of photodynamic therapy, and discloses a photodynamic nano platform with a mitochondrial targeting characteristic and a preparation method and application thereof. The photodynamic nano platform with the mitochondrial targeting characteristic is composed of flexible mesoporous organic silicon oxide, mitochondrial targeting molecules and a photosensitizer, has a collapsed surface, a large internal cavity and mesoporous channels, can efficiently load drugs and has an efficient cell uptake characteristic. The preparation method comprises the following steps: etching through an alkaline solution to obtain the flexible mesoporous organic silicon oxide shell layer, and functionally modifying the mitochondrial targeting molecules and the photosensitizer Ce6 on the surface of the flexible mesoporous organic silicon oxide shell layer. The flexible mesoporous organic silicon nanoparticles are combined with a mitochondrial targeting function, so that the intracellular phagocytic efficiency, the mitochondrial targeting capability and the photodynamic therapy effect are improved. The preparation method is simple and easy to obtain, and the obtained product is high in yield and has huge application potential in the fields of tumor photodynamic therapy and the like.

The invention discloses a method for preparing a super-hydrophobic coating through water-based RAFT miniemulsion polymerization, which comprises the following steps: by using water as a solvent and anamphiphilic reversible addition fragmentation chain transfer (RAFT) macromolecular reagent as a surfactant, synthesizing a polymer of an acrylate monomer and a terminated modified polysiloxane (PDMS)monomer by miniemulsion polymerization. The copolymer is controllable in molecular weight and high in silicon content, a polymer interpenetrating network is formed by adding a cross-linking agent, the contact angle of a coating of the copolymer on glass, wood, a steel plate, plastic and other base materials is larger than 150 degrees, the rolling angle of the coating is smaller than 10 degrees, and the coating has excellent hydrophobicity. The method is simple in preparation, water is used as a solvent, no emulsifier is contained, and fluorine, micro-nano particle potential hazards and organic solvent pollution are avoided. The coating is especially suitable for antifouling, anticorrosion, anti-icing, anti-fog and the like in the aerospace field.

The invention discloses an anti-ageing and thermal-insulation coating and a preparation method thereof. The anti-ageing and thermal-insulation coating is prepared from ingredients in mass fraction: 75 to 85 parts of acrylic resin, 25 to 40 parts of epoxy resin, 15 to 26 parts of rosin pentaerythritol ester, 7 to 15 parts of cerium oxide, 5 to 10 parts of zirconium molybdate, 3 to 8 parts of sodium carboxymethyl cellulose, 4 to 9 parts of magnesium hydroxide, 7 to 13 parts of wollastonite, 6 to 14 parts of potassium alginate, 9 to 15 parts of rutile powder, 36 to 55 parts of deionized water, 2 to 5 parts of coalescing agent, 2 to 5 parts of complex antioxidant and 1 to 3 parts of pigment. The anti-ageing and thermal-insulation coating disclosed by the invention has strong ageing resistance, good stability, a long service life, a simple preparation method and suitability for large-scale production; meanwhile, raw materials are easy to obtain.

The invention relates to a compound ocean fish protein peptide powder and a preparation method thereof, belonging to the technical field of nutritional health food. The peptide powder comprises the following components in percentage by weight: 20-50% of ocean fish protein peptide powder, 1-10% of Beta-CD, 10-20% of whey powder, 20-40% of separated soybean protein powder which are evenly mixed to obtain the compound ocean fish protein peptide powder. The compound ocean fish peptide powder disclosed by the invention has the advantages of easily available raw materials, simple preparation method, no side-effect after taking, applicability to people of all ages and in particular very good curative effect in treating female chloasma. In addition, the peptide powder can improve symptoms such asfatigue, dysthesia, insomnia and the like, free from causing allergy and other adverse reactions and favored by consumers.

The invention discloses an emulsion containing Heitacai polysaccharide. The emulsion containing Heitacai polysaccharide is prepared from, by mass, 1 wt%-3 wt% of mineral oil, 1 wt%-10 wt% of glycerinum, 0.5 wt%-2 wt% of cetostearyl alcohol, 0.5 wt%-1 wt% of sorbitan stearate, 1 wt%-2 wt% of polysorbate-60, 0.1 wt%-1 wt% of polydimethylsiloxane, 0.1 wt%-2 wt% of glyceryl stearate, 0.5 wt%-2 wt% of PEG-100 stearate, 0.05 wt%-0.3 wt% of xanthan gum, 0.1 wt%-0.5 wt% of allantoin, 0.25 wt%-0.65 wt% of phenoxyethanol, 0.08 wt%-0.16 wt% of methylparaben, 0.03 wt%-0.13 wt% of propyl hydroxybenzoate and the balance deionized water. The emulsion is mild and free of irritation and has the effects of aging resistance, moisture preservation and water replenishment on skin.

The invention discloses a bio-click-triggered high-efficiency targeting conjugate and a bio-click-triggered high-efficiency targeting multi-component composition as well as preparation methods and application thereof. The multi-component composition is formed by assembling an anti-angiogenic therapeutic agent, a chemotherapeutic drug and a photosensitizer in the same nano-system; furthermore, thetargeting conjugate (a cycloalkyne-heparin polysaccharide-natural active hydrophobic medicine) is modified with a small molecular target with a cycloalkyne structure, so that in-vivo click targeting is efficiently realized. After nanoparticles are formed in water by means of self-assembly, a chemotherapeutic medicine and a thermotherapy photosensitizer are simultaneously encapsulated in hydrophobic cores of the nanoparticles by using a physical method; therefore, the toxic and side effects on the normal tissues are greatly reduced while the combined administration is realized; the conjugate and the multi-component composition have the characteristics of being intelligent, efficient and low in toxicity, having targeting property, reversing tumor MDR, having a synergistic anti-tumor effect,and the like; a brand-new combined chemotherapy model is created.

The invention discloses a roof of a light steel structure house. The roof from inside to outside is a light steel keel, roof OSB boards, an insulating layer, a ventilation layer, roof OSB boards, a waterproof layer and roof asphalt tiles. The light steel keel is filled with heat preservation and thermal insulation material, a wooden keel is placed in the middle of the ventilation layer, and breathing paper is pasted close to the insulating layer. The roof of the light steel structure house is reasonable in structure, light and solid, capable of achieving heat preservation and thermal insulation, capable of achieving sound insulation and flame resistance, capable of achieving water insulation and wind resistance, good in wind resistance and earthquake resistance effect and capable of withstanding certain pressure without deformation and displacement.

The invention discloses moisturizing toner containing lettuce extract. The moisturizing toner containing the lettuce extract is prepared from, by mass, 5-15% of glycerinum, 1-10% of polyethylene glycol-8, 1-10% of butanediol, 1-5% of hamamelis virginiana, 1-5% of the lettuce extract, 0.1-0.3% of bi(hydroxymethyl) imidazolidinyl urea / iodine propynol butyl carbamate, 0.1-0.2% of allantoin and the balance deionized water. The moisturizing toner has the effects of whitening the skin, preserving moisture and replenishing water and makes the skin recover the healthy state of white touched with red.

The invention provides an indole hydrogen peroxide fluorescent probe and a preparation method thereof, and belongs to the field of organic dye synthesis. The indole hydrogen peroxide probe prepared bythe method is a black solid in appearance, and the melting point is within the range of 180-300 DEG C. The fluorescent probe has the advantages of novel structure, high sensitivity, good selectivity,high molar extinction coefficient, good light stability and the like; besides, the fluorescence emission wavelength of the hydrogen peroxide probe is 500-650 nm, biological background fluorescence interference can be effectively avoided, the hydrogen peroxide probe has excellent penetrability to the environment and biological tissues, and a sensitive tool is provided for detection and research oforganisms and trace hydrogen peroxide in the environment.

The invention provides anti-aging face cream containing bamboo shoot oil. The face cream comprises the following components in percentage by mass: 0.1-0.5 percent of bamboo shoot oil, 1-10 percent of glycerin, 1-10 percent of butanediol, 8-10 percent of polyethylene glycol, 1-5 percent of squalane, 1-5 percent of caprylic / capric triglyceride, 1-5 percent of cetostearyl alcohol, 1-3 percent of polydimethylsiloxane, 1-3 percent of butyrospermum parkii, 1-3 percent of hydrogenated jojoba oil, 1-3 percent of PEG-20 methyl glucose sesquistearate, 0.5-2.5 percent of methyl glucose sesquistearate, 0.5-2.5 percent of glyceryl stearate and PEG-100 stearate, 0.5-1.5 percent of French lavender extract, polyacrylamide, C13-14 isoparaffin, water and the like. According to the anti-aging face cream provided by the invention, abandoned inedible parts of raw materials namely bamboo shoots are recycled, and are extracted and utilized, so the production cost is reduced, and the utilization rate of plant raw materials is improved.

Benshan green clay type molding sand used for pressure plate casting and a preparing method thereof are disclosed. The molding sand is prepared from 21-29 parts by weight of Benshan green clay, 11-17 parts by weight of zircon powder, 24-32 parts by weight of olivine sand, 12-18 parts by weight of anorthite, 10-15 parts by weight of granite waste, 6-12 parts by weight of gum tragacanth powder, 5-10 parts by weight of refining slag, 7-13 parts by weight of perlite, 4-8 parts by weight of poly(vinyl alcohol), 3-5 parts by weight of magnesium chloride, 2-4 parts by weight of sodium dichromate and 100-120 parts by weight of a modifier. The Benshan green clay and the gum tragacanth powder, the poly(vinyl alcohol), the magnesium chloride, and the like are matched with each other and adopted as an adhesive, and therefore the prepared molding sand is excellent in adhesiveness and is excellent in plasticity, fire resistance and gas permeability. The molding sand is simple and easily available in components, simple in preparing method and low in cost, is an environmental friendly product with excellent properties, and can be widely used in the field of pressure plate casting.

The invention relates to high-temperature well cementation cement as well as a preparation method and application thereof. The high-temperature well cementation cement comprises the following raw materials in percentage by mass: 69-72% of cement raw material and 28-31% of quartz sand; wherein the cement raw material is composed of G-grade oil well cement and nuclear power cement in a mass ratio of4:6 to 5:5. The well cementation cement provided by the invention is relatively long and stable in thickening time, basically does not decline in strength along with temperature rise, and is particularly suitable for well cementation engineering in Africa.

The invention discloses a reaction type greasy base degradable surfactant as well as a synthetic method and application thereof. Polyether blocks and unsaturated double bonds are introduced in grease, so that the prepared degradable surfactant can be used for conventional emulsion polymerization and miniemulsion polymerization, as a result, stable polymer latex can be obtained. According to the invention, the price of production raw material is low, the preparation process is simple and feasible and environment-friendly, and a new approach is provided for the preparation of biodegradable latex.