44 results about "Organic Ester" patented technology

The invention belongs to the technical field of lithium ion battery additive materials, and particularly relates to a high-compaction dispersion material and a preparation method thereof, and a high-compaction flexible positive pole piece, the high-compaction dispersion material comprises the following components by mass: 30-40 parts of a component A, 5-10 parts of a component B, 5-10 parts of a component C, and 40-60 parts of a solvent; wherein the component A comprises an unsaturated cyclic monomer, unsaturated polyether and a solution polymerization copolymer of an amine-containing monomer and a (methyl) acrylate monomer; the component B comprises a long-chain amine substance; the component C comprises organic ester; the high-compaction dispersion material, the preparation method thereof and the high-compaction flexible positive pole piece have the advantages of being excellent in dispersion performance, outstanding in softening effect, remarkable in pole piece compaction density improvement and the like, can have the two functions of dispersion and compaction improvement, reduces the production cost, improves the pole piece yield and has a good application prospect.

The invention provides a sodium-ion battery electrolyte, a battery, a battery pack and electric equipment, the sodium-ion battery electrolyte comprises a first additive and a second additive, the first additive is a non-sodium metal cation compound, the second additive is a halogenated organic ester compound, and the second additive is a non-sodium metal cation compound. Halogen atoms in the second additive comprise at least one of chlorine, bromine and iodine. Under the synergistic effect of the first additive and the second additive, the sodium-ion battery electrolyte provided by the invention can significantly reduce impedance and improve cycle stability.

The invention discloses a double-layer composite structure cable sheath and a preparation method thereof, and belongs to the technical field of cable sheath materials. The invention relates to a preparation method of a cable sheath with a double-layer composite structure. The preparation method comprises the following steps: uniformly mixing polyvinyl chloride, an organic ester compatilizer and a metal salt stabilizer to obtain a PVC mixture; caprolactam is subjected to ring opening treatment and then subjected to copolymerization with adipic acid and polyether amine, and modified nylon 6 is obtained; uniformly mixing the modified nylon 6, an aliphatic diester lubricant and an amine stabilizer to obtain a nylon mixture; the cable core passes through a co-extrusion die head, the PVC mixture and the nylon mixture wrap the cable core from inside to outside in a melt co-extrusion mode, and after shaping, the cable sheath of the double-layer composite structure is obtained. The problems of layering, bubbles, poor interface bonding force and the like in combined processing of the nylon layer and the PVC layer are solved. And the obtained cable sheath has high toughness, bending resistance and fluidity.

The invention provides a controlled release method of a low-additive-amount coal-based quantum carbon dot composite coated slow-release fertilizer, and relates to the technical field of slow-release fertilizers, the controlled release method comprises the following steps: S1, carrying out surface functional modification on coal-based quantum carbon dots, grafting amino and carboxyl on the surfaces of the coal-based quantum carbon dots, and forming molecular-level crosslinking points capable of being subjected to dual crosslinking with inorganic silicon-oxygen bonds and organic ester bonds; s2, sequentially wrapping a basic controlled release shell layer formed by biodegradable polyester and an intelligent response layer embedded with the coal-based quantum carbon dots by taking fertilizer particles as a core through a layer-by-layer spraying and fluidized bed coating process to form a composite coating structure; the coal-based quantum carbon dots subjected to surface functionalization modification serve as molecular-level crosslinking points under the extremely-low addition amount of 0.1-1 wt%, the molecular-level crosslinking points, inorganic silicon-oxygen bonds and organic ester bonds form a double-crosslinking network, the compactness and stability of a coating layer are remarkably improved, and therefore the raw material cost and processing energy consumption are reduced, and green manufacturing is achieved.

The invention provides a low-temperature curing agent material of quartz sand for fuses and a curing process, and relates to the technical field of fuses, the low-temperature curing agent material comprises a functional phase, a hardening agent and a coating phase, the functional phase is a water glass solution prepared by taking at least one of alkali metal silicate as a main component, and the addition amount of the functional phase accounts for 75-92 wt% of the material; the hardening agent is at least one of organic esters; the compactness, compressive strength, toughness and the like of the cured quartz sand filler are improved through different curing agent system designs, different hardening mechanisms, enhancement modes, hydrophilic improvement and other modes, on one hand, expansion of an electric arc channel when a metal melt is broken under high voltage and large current can be reduced, and the post-arc time and electric arc energy are reduced; on the other hand, the erosion effect of moisture and other substances in the environment on the quartz sand filler in the long-term use process of the product can be reduced, and the long-term use reliability of the fuse product is improved.

The application belongs to the technical field of organic ester, and particularly relates to a Ti / Zr-Si porous catalyst, a preparation method thereof and a catalytic esterification method. The application introduces an organic acid source in a system for preparing a molecular sieve, and a core-shell type heterogeneous esterification catalyst material with titanium / zirconium in a tetra-coordination framework as a core and titanium / zirconium in a penta / six-coordination as a shell is prepared by combining the porous molecular sieve with a binder precursor. The catalyst contains abundant secondary pores in the molecular sieve crystals and between the binders, which effectively improves the esterification reaction performance and activity stability of the catalyst.

The application relates to the technical field of insulators, and discloses a high-strength light insulator and a preparation method thereof. The high-strength light insulator comprises a core rod and a fitting on both ends of the core rod, an umbrella skirt sheath is injected on the outer surface of the core rod, and the raw material of the core rod comprises glue and glass fibers; the glue comprises the following raw material components in parts by weight: 100 parts of bisphenol A epoxy resin, 70-80 parts of a curing agent, 1-2 parts of an accelerator and 5-8 parts of a filler; and the curing agent comprises an alicyclic anhydride curing agent, an alicyclic amine curing agent and a multi-sulfydryl organic ester compound. The above technical scheme solves the problem of insufficient strength of the light insulator in the related art.

This invention relates to a method for preparing a low-density cement slurry antifouling agent, comprising the following steps: 1. Raw material preparation: weighing a predetermined weight of organophosphonic acid, organic ester, and initiator; 2. Organophosphonic acid solution preparation: dissolving the weighed organophosphonic acid in water, heating to a predetermined temperature, and adjusting the pH value of the solution to a predetermined value; 3. Antifouling agent preparation: adding the weighed initiator to the organophosphonic acid solution, dissolving it, then adding the weighed organic ester, stirring to dissolve, subsequently cooling the solution, and adjusting the pH value to neutral to obtain the antifouling agent. The advantages of this invention are: the preparation method is simple; the obtained low-density cement slurry antifouling agent, when added to cement slurry, can react with cement hydration products, preventing drilling fluid from contaminating the cement slurry, improving the antifouling ability of the cement slurry; the application method is convenient, simplifying the cementing process and reducing the cost per well.

The present invention belongs to the technical field of organic ester preparation, and in particular to a kind of Ti / Zr-Si porous molecular sieve and its preparation method and catalytic esterification method, the preparation method comprises the following steps: (1) silicon source, titanium source, zirconium source, structure directing agent, water are mixed, and heated hydrolysis dispersion is obtained under normal pressure to obtain precursor gel I, and organic acid source is added to precursor gel I to obtain precursor gel II; (2) precursor gel II is transferred to reactor, hydrothermally reacted under autogenous pressure, and finally cooled, depressurized, filtered, dried and roasted to obtain Ti / Zr-Si porous molecular sieve. The present invention can improve the diffusion performance in molecular sieve crystal, improve the accessibility of active centers in molecular sieve crystal, and regulate the amount of Lewis acid produced by surface hydroxyl groups by introducing organic acid source in molecular sieve preparation system. Therefore, catalytic efficiency and catalytic stability when using Ti / Zr-Si porous molecular sieve catalytic esterification reaction are effectively improved.

This invention provides a degradation process for composite polyester materials, relating to the field of polyester recycling technology. The degradation process involves depolymerizing a reaction system comprising at least raw material components (i) composite polyester material, (ii) organic ester compounds, (iii) a co-solvent, and (iv) an alkaline catalyst at a temperature not exceeding 100°C; the weight ratio of the co-solvent to the organic ester compound is ≥0.5. By adding a certain amount of co-solvent to the depolymerization system, this invention achieves directional depolymerization of polyester-containing composite polyester materials while essentially preventing depolymerization of other materials, such as spandex and nylon.

The present application relates to the technical field of liquid light valve, especially to a low-voltage driven liquid light valve and a preparation method thereof. The low-voltage driven liquid light valve comprises a first transparent electrode, a light-adjusting liquid and a second transparent electrode arranged in sequence. The light-adjusting liquid comprises light-adjusting particles, a suspension, a dispersing agent and an organic solvent. The dispersing agent is PVP. The present application further discloses a preparation method of the low-voltage driven liquid light valve, comprising the following steps: preparing light-adjusting particles; preparing a suspension; dissolving PVP in an organic solvent at a certain temperature; mixing the light-adjusting particles with the organic ester solution of PVP, and then mixing with the suspension to obtain the light-adjusting liquid; filling the light-adjusting liquid between the first transparent electrode and the second transparent electrode, and sealing. The liquid light valve prepared by the present application can be driven at low voltage, has fast response speed, short recovery time and good repeatability, and uses PVP which is stable at normal temperature and pressure as the dispersing agent, so the safety is good.

Methods and compositions involving certain organic esters that release an organic acid for use in the subterranean formation are provided. In some embodiments, the methods include: providing a treatment fluid including an aqueous base fluid and at least one organic ester that includes at least one electron withdrawing group selected from the group consisting of F, Cl, Br, I, NO2, a vinyl group, an acetylenic group, an aromatic group, a carbonyl group, an alkoxyl group, a cyano functional group (C≡N), and any derivative thereof; and introducing the treatment fluid into at least a portion of a wellbore penetrating at least a portion of a subterranean formation.

The present application relates to a kind of iron ore room temperature flotation ester base carboxylic acid collector and its synthesis method and application, and collector structure is organic ester base carboxylic acid compound.The collector is obtained by the reaction of alkyl alcohol and diacid or acid anhydride compound, preparation method: the molar ratio of alkyl alcohol and diacid or acid anhydride compound is 1:1.0~5.0, reaction temperature is 20 ℃~40 ℃, in dichloromethane solvent 2 h~12 h, obtain iron ore room temperature flotation anion collector.The organic ester base carboxylic acid collector of the present application can replace fatty acid or be mixed as iron ore room temperature flotation anion collector.

The invention discloses a sand core for cast steel with high collapsibility and high deformability and a preparation method, and relates to the technical field of sand core casting. The back sand body is an organic ester water glass limestone self-hardening sand supporting body which is prepared by mixing 96.2%-97.9% by mass of limestone sand, 1.9%-2.9% by mass of modified water glass and 0.2%-0.9% by mass of organic ester I; and the surface sand layer is an alkali phenolic resin chromite sand shell layer which is formed by mixing 96.6%-98.4% by mass of chromite sand, 1.4%-2.5% by mass of alkali phenolic resin and 0.2%-0.9% by mass of organic ester II according to a certain proportion and coating the outer part of the back sand body. The high-collapsibility and high-deformability sand core is prepared by using the alkali phenolic resin chromite sand as the facing sand and the organic ester water glass limestone self-hardening sand as the backing sand, so that the crack tendency of a casting can be reduced, the collapsibility of the sand core is improved, the sand cleaning difficulty is reduced, and the quality of the inner surface of the casting is improved.

The invention relates to the technical field of insulators, and provides a novel high-strength light insulator and a preparation method thereof. A novel high-strength light insulator comprises a core rod and fittings inserted into the two ends of the core rod, an umbrella skirt sheath is injected to the outer surface of the core rod, raw materials of the core rod comprise a sizing material and glass fibers, and the sizing material comprises, by weight, 100 parts of bisphenol A epoxy resin, 70-80 parts of a curing agent, 1-2 parts of an accelerant and 5-8 parts of filler; the curing agent comprises an alicyclic anhydride curing agent, an alicyclic amine curing agent and a polymercapto organic ester compound. According to the technical scheme, the problem of insufficient strength of a light insulator in the prior art is solved.

This invention relates to the field of adsorption separation technology, specifically to an adsorbent for selectively adsorbing organic esters from industrial wastewater and its preparation method. The adsorbent contains polar functional groups capable of adsorbing organic esters and does not contain hydroxyl or carboxyl groups; the adsorbent's adsorption capacity for organic esters is not less than 12% of its total weight, and the density of the adsorbent is 0.5-1.2 g·cm³. ‑3 The adsorbent of this invention contains abundant polar functional groups, exhibiting strong selectivity for organic esters. This effectively avoids competitive adsorption of other molecules in the solution at the active sites, thus improving the purity of the recovered product. Under high liquid hourly space velocity (HLH), the adsorbent of this invention can purify the concentration of organic esters in the solution to below 1000 ppm.

This invention discloses a bone hemostatic and repair material, its preparation method, and its application, belonging to the field of medical materials technology. The bone hemostatic and repair material provided by this invention comprises the following raw materials: organic ester compounds, organic acids, and borosilicate bioglass; the organic acids include at least one selected from oleic acid, linoleic acid, palmitic acid, and lauric acid; the organic ester compounds include at least one selected from palmitic acid glyceride, oleic acid glyceride, monolauric acid glyceride, and dilauric acid glyceride. The bone hemostatic and repair material proposed in this invention can effectively stop bleeding, and can also be absorbed by the body after surgery while promoting bone tissue healing, reducing adverse reactions and complications. This invention also discloses the preparation method and application of the above-mentioned bone hemostatic and repair material.

The invention provides an electrolyte of a lead-carbon energy storage battery as well as a preparation method and application of the electrolyte. The electrolyte comprises the following components in percentage by mass: 27-30.2% of sulfuric acid; 0.5%-2% of sodium sulfate; 0.02% to 0.2% of fumed silica; 0.3%-1.5% of an organic ester composite additive; the organic ester composite additive comprises a sulfonate compound and a carbonate compound. According to the electrolyte disclosed by the invention, by adding the specific functional additive, the ionic conductivity of the electrolyte can be remarkably improved, and the sulfation of a negative electrode is reduced, so that the cycle life of the lead-carbon battery is prolonged.

The application belongs to the technical field of lithium ion battery auxiliary materials, and particularly relates to a high-compaction dispersing material and a preparation method thereof, and a high-compaction flexible positive electrode sheet, which comprises the following components in parts by mass: 30-40 parts of component A, 5-10 parts of component B, 5-10 parts of component C, and 40-60 parts of a solvent; wherein the component A comprises a solution polymerization copolymer of unsaturated cyclic monomers, unsaturated polyether, amine-containing monomers and (methyl) acrylate monomers; the component B comprises long-chain amine substances; and the component C comprises organic esters. The high-compaction dispersing material and the preparation method thereof, and the high-compaction flexible positive electrode sheet have the advantages of excellent dispersing performance, outstanding flexibility improvement effect, and significant improvement of electrode sheet compaction density, can balance the two functions of dispersion and compaction, reduce production cost, improve electrode sheet yield, and have a good application prospect.

The invention belongs to the technical field of sodium silicate self-hardening sand, and particularly relates to a moisture-resistant method of ester-hardened sodium silicate sand, which is characterized by comprising the following steps: before sand mixing, putting a mixture of organic ester and bentonite into an ultrasonic tank for ultrasonic pretreatment, adding the mixture into crude sand, and uniformly mixing and stirring, and finally, adding water glass, and uniformly mixing to prepare the ester-hardened water glass sand. The ester-hardened sodium silicate sand comprises the following components in parts by weight: 100 parts of crude sand, 3 to 3.5 parts of sodium silicate, 0.5 to 0.7 part of organic ester and 0.4 to 0.7 part of bentonite. The preparation method has the beneficial effects that through ion exchange between multivalent ions (calcium, magnesium and the like) bentonite and sodium ions in the water glass, due to the existence of organic ester in bentonite layer gaps, the sodium ions in the water glass and bentonite calcium ions cannot be directly exchanged, so that the reaction speed is greatly reduced, and sufficient molding time is reserved. The adverse effect of air humidity on a sand mold is reduced, and the tensile strength of a sample in 24 h is larger than 0.6 Mpa in the environment with the relative humidity being 95% or above.

This invention belongs to the field of wood adhesive technology, specifically relating to an organic ester modified lignin-phenolic resin adhesive and its preparation method. This adhesive uses lignin as the core raw material and innovatively constructs a lignin-organic ester-phenol ternary composite precursor through organic ester bridging activation technology. This method increases the phenolic substitution degree of lignin by 50%, and the resulting adhesive has significant technical advantages: (1) the gel time is shortened to half that of conventional products, significantly improving curing efficiency; (2) the average bonding strength is ≥1.35 MPa, meeting the GB / T 9846 Class I plywood standard; (3) the hot-pressing cycle of the board is shortened by 50%, effectively reducing production energy consumption; (4) formaldehyde release is ≤0.018 mg / m³. 3 To reach E NF The advanced environmental protection standards have established a new approach to the high-value utilization of lignin, resulting in significant environmental and economic benefits in the field of wood-based panel manufacturing.

The invention discloses a water-based silicon coating additive which comprises the following components in percentage by weight: 10%-20% of organic modified polysiloxane, 5%-10% of polyoxyethylene ether, 1%-3% of a defoaming agent, 1%-3% of a cosurfactant, 1%-3% of a dispersing agent and the balance of deionized water. Wherein the defoaming agent comprises the following materials in parts by weight: 70-100 parts of polyether modified silicone oil, 10-20 parts of coconut oil, 10-15 parts of fatty acid ester, 40-60 parts of purified water and 5-8 parts of organic ester. Due to the adoption of the defoaming agent containing polyether modified silicone oil, the defoaming agent is endowed with relatively strong hydrophilicity, hydrophobicity and permeability, and can be quickly emulsified in water, the surface tension is reduced, and the defoaming speed is increased; in addition, the polyether modified silicone oil has relatively strong acid and alkali resistance, so that the internal acid and alkali resistance of the defoaming auxiliary agent for the water-based paint can be improved, and meanwhile, the defoaming auxiliary agent also has effective foam inhibition, effectively eliminates foam in the paint and improves the apparent quality of a coating film.

The invention discloses an impact-resistant and corrosion-resistant isocyanate / silicate coating and a preparation method thereof. The coating is prepared from the following components in parts by weight: 30 to 90 parts of isocyanate resin, 10 to 50 parts of silicate, 0.5 to 1 part of silane coupling agent, 0.5 to 1 part of organic ester, 0.5 to 1 part of defoaming agent, 0.5 to 1 part of thickening agent, 0.5 to 1 part of dispersing agent, 15 to 40 parts of pigment filler and 5 to 10 parts of solvent. The isocyanate / silicate coating with both acid corrosion resistance and impact resistance is prepared by a one-step preparation method. The modified silicate and the isocyanate resin react to form a high-solid-content three-dimensional network structure, and the dense three-dimensional network structure hinders permeation of a corrosive medium, so that the impact resistance, corrosion resistance and other properties of the isocyanate resin are enhanced.

This invention provides a gardenia meal genipin derivative complex with sustained-release hypoglycemic activity, its preparation method, and its application. The complex consists of a core and a shell: the core is a hydrophobic complex formed by genipin-organic ester derivative and resistant starch, wherein the genipin-organic ester derivative is generated in situ by ultra-finely pulverizing gardenia meal to 400-500 mesh, inoculating it with a compound microbial agent, and fermenting it at pH 4.2-4.8 for 4-6 days; the shell is a hydrophilic gel layer formed by konjac glucomannan; the mass ratio of the core to the shell is (5-7):(3-5). This invention utilizes the enhanced lipid solubility of genipin derivatives to construct a dual sustained-release structure of "hydrophobic core-hydrophilic shell," exhibiting zero-order release characteristics in simulated gastrointestinal fluid, with a cumulative release rate >85% over 8 hours and a gastric release rate <15%. Animal experiments show that noodles containing the complex of this invention can reduce postprandial blood glucose AUC in diabetic mice by 41.9%, with an effective hypoglycemic time of 7.5 hours.

The invention discloses an inert electrolyte and a preparation method and application thereof.The inert electrolyte comprises alkali metal salt and an organic solvent, the organic solvent comprises a first solvent, and the first solvent is a methylated inert solvent; the methylation inert solvent is selected from at least one of a first organic ester compound, an organic ether compound, an organic fluorinated compound and an organic nitrile compound. Through methylation molecular engineering modification on first solvent molecules, inert methyl groups can increase inertness of the solvent molecules and coordination of anions, oxygenolysis of the positive electrode under high voltage and reductive decomposition of the negative electrode are effectively inhibited, stable and uniform interfacial films are formed on the surfaces of the positive electrode and the negative electrode, and the positive electrode and the negative electrode are more stable. And the cycling stability of the battery under high voltage is obviously improved. Meanwhile, the electrolyte has a wide electrochemical window, efficient lithium ion transmission capacity and high wide-temperature adaptability, and the battery can keep stable cycle performance in the low-temperature environment of-20 DEG C and the high-temperature environment of 60 DEG C.

The invention provides a sand mold prepared through a high-strength cold core box technology and a preparation method and application of the sand mold, and belongs to the technical field of casting. The method comprises the steps that after phenol and an alkaline solution are mixed, a formaldehyde solution is added, the temperature is increased for a reaction, and after the reaction is conducted for a period of time, a mold is obtained; cooling, adding an alkaline solution, water and an additive, and reacting to obtain a phenolic resin solution; the phenolic resin solution and a refractory material are mixed to obtain a mixture, a curing agent is heated and gasified and then blown into the mixture through a core shooter to obtain a sand mold, and the curing agent is a formate curing agent; wherein the molar ratio of the alkaline substance added into the alkaline solution after cooling to the phenol is (0.2-0.5): 1; according to the sand mold, the safety of an alkaline phenolic resin cold core box method can be greatly improved, explosion and fire hazards caused by organic ester gasification in the sand mold production process are avoided, safe production is guaranteed, and the quality of the sand mold can be improved by matching with the novel curing agent.

The invention relates to the technical field of well drilling and coring, and particularly discloses a high-temperature-resistant coring sealing liquid which comprises the following components in parts by mass: 50-70 parts of high-temperature-resistant vegetable oil, 10-15 parts of organic ester, 8-12 parts of a plasticizer, 5-8 parts of an emulsifier and 1-5 parts of a weighting agent. The high-temperature-resistant vegetable oil is used as a main base solution, and compared with traditional mineral oil or common vegetable oil, the molecular structure is more stable, the thermal decomposition temperature is high, and the chemical stability can be kept at high temperature; organic ester is introduced as a coalescing agent, has good compatibility with high-temperature-resistant vegetable oil and can participate in the film forming process, and the compactness and adhesive force of a film layer are improved; meanwhile, the flexibility and crack resistance of a protective film are remarkably improved by matching with a plasticizer, so that effective isolation of a rock core is maintained, and generally, the coring sealing liquid has excellent high-temperature resistance and is suitable for sealed coring operation of a deep well and an ultra-deep well.

The application discloses a preparation method of bentonite composite mineral gel, which comprises the following steps: (1) pulp preparation, viscosity reduction and purification; (2) gelation activation; (3) functional group modification; (4) gelation; and (5) atomization, drying and dehydration, so that the bentonite composite mineral gel with high viscosity and high dispersing performance is finally obtained. The technical scheme of the application is that the viscosity is first reduced to increase the concentration of the ore pulp, then an activator is added to increase the viscosity, and at the same time, in order to maintain the dispersing performance, an organic ester modifier is used to modify the montmorillonite inorganic matrix, so that a combined structure of the organic matrix-modifier-inorganic matrix is formed, the inorganic mineral gel obtained through the final bentonite-montmorillonite combination has extremely strong hydrophobic performance, and thus has high viscosity and high dispersing performance. The application can be applied to water-based paint and pesticide as a thickening and suspending agent.

The invention relates to the technical field of measuring equipment, and provides a breakdown voltage testing device and system, and the device comprises a visual cavity, a first electrode, a second electrode, an impulse voltage generator, and a voltage divider. Wherein the visual cavity is provided with a containing cavity, the containing cavity is used for containing ester insulating liquid, the first electrode is arranged in the visual cavity, the first electrode is provided with a first discharging end, the first discharging end is located in the containing cavity, the second electrode is arranged in the visual cavity, the second electrode is provided with a second discharging end, and the second discharging end is movably arranged in the containing cavity. The second discharge end and the first discharge end are opposite in the first direction and are arranged at an interval, the voltage divider is conductively connected with the impulse voltage generator, the voltage divider is provided with a high-voltage end and a low-voltage end, one of the high-voltage end and the low-voltage end is conductively connected with the first electrode, and the other one is conductively connected with the second electrode; the problem that a traditional organic ester breakdown voltage test is low in efficiency can be solved.