46 results about "Ethyleneglycol bis" patented technology

This invention belongs to the field of two-dimensional material preparation technology, and provides an MXene material and its preparation method. The preparation method of the MXene material includes: mixing a MAX phase precursor to be etched with an organic halide reagent and a morphology modifier, performing a solvothermal etching reaction, and after the reaction, washing and drying the resulting product to obtain the MXene material; wherein the organic halide reagent is triethylamine trihydrofluoride, triethylamine hydrochloride, or dichloroethylamine hydrochloride, and the morphology modifier is ethylene glycol, dimethyl sulfoxide, or cyclohexane. The method of this invention can effectively control the microstructure and pore structure of the MXene material.

A polyelectrolyte hydrogel coating with strong substrate binding performance and a method of manufacturing the same are provided. The method includes: 1) activating a substrate by applying oxygen plasma; and 2) dissolving a polycationic polymer, a polymeric monomer, a silane coupling agent and an initiator to obtain a precursor solution, vacuumizing the precursor solution to remove air bubbles, applying the vacuumized precursor solution to a surface of the substrate activated by the oxygen plasma, and performing an in-situ polymerization and curing process under nitrogen or rare gas atmosphere. The polymeric monomer includes at least one of: acrylamide, acrylic acid, hydroxyethyl methacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid, polyethylene glycol (diol) diacrylate, 2-methacryloxyethylphosphocholine, 3-[[2-(Methacryloyloxy)ethyl]dimethylammonio]propane-1-sulfonate, and 3-[[2-(methacryloyloxy)ethyl]dimethylammonium] propionate. The silane coupling agent has a carbon-carbon double bond functional group.

In order to overcome the problems of high recovery price, high energy consumption and low utilization rate of the existing kettle residue for the production of ethylene glycol by ethylene carbonate alcoholysis method, the application provides a kettle residue recovery method and device for the production of ethylene glycol by ethylene carbonate alcoholysis method, and the application provides a kettle residue recovery method for the production of ethylene glycol by ethylene carbonate, which comprises the following steps: under the conditions of temperature 150-250 DEG C and pressure 0.6-2 MPa, the ethylene glycol in the kettle residue produced by the preparation of ethylene glycol by ethylene carbonate alcoholysis method is converted into diethylene glycol under the catalysis of alkali metal salt catalyst, and after the reaction is completed, the kettle residue is a mixture of ethylene glycol, diethylene glycol, triethylene glycol and salt, the mixture is purified, and ethylene glycol and diethylene glycol are recovered; the economic benefit is improved, the rectification separation operation is simplified, the equipment investment and the overall energy consumption are reduced, and the utilization rate of ethylene glycol kettle residue is improved.

The invention discloses a keloid treatment gel material capable of reducing lactic acid generation, and belongs to the technical field of keloid treatment. The material is prepared by the following steps: firstly, carrying out esterification on 9-oxabicyclo [3.3. 1] nonane-2, 6-diol and S-allyl-L-cysteine to obtain an intermediate A, and then carrying out Schiff base reaction on the intermediate A and 5-methoxy heliotropin to obtain an intermediate B containing double bonds; then, copolymerizing with methylacryloylated chitosan and polyethylene glycol diacrylate under photo-initiation to form a cross-linked network structure; finally, active ingredients such as quercetin-3-O-glucuronide and luteolin-3 '-glucuronide are included, and auxiliary materials such as a humectant and a preservative are added, so that the composition is prepared. The gel has a slow release function, can effectively inhibit glycolysis, reduce lactic acid generation, scavenge free radicals and regulate inflammation and fibrosis microenvironment, has good biocompatibility and oxidation response drug release characteristics, and is suitable for prevention and treatment of keloids.

The invention belongs to the technical field of artificial leather, and particularly relates to an essence mixture, fragrant PVC (polyvinyl chloride) leather and a preparation method thereof. The essence premix is added into the formula for modification, so that the prepared artificial leather can release fragrance for a long time. The essence premix comprises essence methyl dihydrojasmonate and tridecanedioic acid cyclic ethylene glycol diester, and the mass ratio of the methyl dihydrojasmonate to the tridecanedioic acid cyclic ethylene glycol diester is 1: (1-4). A small amount of essence is added in the formula, the fragrance emitted by the essence can effectively shield the smell of the raw materials, special equipment is not needed for production, special treatment is not needed, and the product cost can be effectively reduced; the fragrant PVC leather prepared by the invention can effectively control the volatilization amount and the volatilization speed of the fragrance of the essence. The fragrance duration is effectively prolonged, and the effect of slowly releasing fragrance for a long time is achieved.

The present application relates to the technical field of pesticide preparation, in particular to a microemulsion containing fluroxypyr-isooctyl and aminoclopidol and a preparation method thereof, which is composed of the following components in percentage by mass: fluroxypyr-isooctyl 1-15%, aminoclopidol 1-15%, composite emulsifier 10-22%, co-emulsifier 5-11%, composite solvent 15-28%, antifreezing agent 2-6%, stabilizer 0.5-2.5%, and deionized water, with the total being 100%. The composite emulsifier is composed of dioctyl sodium sulfosuccinate and triphenyl ethenyl phenol polyoxyethylene ether phosphate triethanolamine salt, the composite solvent is composed of N,N-dimethyl decanamide and ethylene glycol diacetate, the stabilizer is composed of epoxidized soybean oil and citric acid, the co-emulsifier is dipropylene glycol methyl ether, and the antifreezing agent is glycerol. The microemulsion containing fluroxypyr-isooctyl and aminoclopidol and the preparation method thereof effectively solve a plurality of technical problems in the compounding process of the two active ingredients and have significant technical advantages.

The invention belongs to the field of external medicines for pets, and provides a macromolecular medicine carrier for treating cat tinea, which is prepared by adopting a collaborative design of core-shell nanogel particles and a double-state antibacterial component and through stepwise reaction of hexamethylene diisocyanate, polyethylene glycol, polyethylene glycol diamine and a silane coupling agent. A core-shell structure with the particle size of 100-350 nm and the shell thickness of 5-30 nm is formed through water dispersion emulsification and silane hydrolytic condensation, and a Si-O-Si bond fixed state and non-covalent releasable state antibacterial mechanism is constructed by combining polyhexamethylene biguanide hydrochloride. According to the invention, the powerful antibacterial property of the minimal inhibitory concentration of 0.2-3.00 mg / mL to pathogenic dermatophyte is realized, a low-viscosity processing window and skin-friendly pH value are kept at 5.5-7.5, the coupling problem of high load, long-acting washing resistance, rapid effect and continuous inhibition and film-forming adhesion durability of an external preparation is solved, and the preparation has wide application value.

This invention relates to a polyester resin for 50 / 50 blended powder coatings. This polyester resin is obtained by reacting raw materials including glycerin black lead, ethylene glycol, diethylene glycol, terephthalic acid, 4,4'-biphenyl dicarboxylic acid, succinic acid, and pyromellitic dianhydride. The resulting product exhibits good impact resistance, a gloss level generally above 92%, and other properties such as adhesion that basically meet the application requirements of 50 / 50 blended powder coatings. Due to the comprehensive utilization of the effective components of glycerin black lead, it has the advantages of low cost and outstanding environmental performance.

Disclosed herein are various embodiments pertaining to continuous processes for making ethylene glycol diacetate, also known as 1,2-diacetoxyethane, by esterification of monoethylene glycol to 2-hydroxyethyl acetate and the esterification of 2-hydroxyethyl acetate to ethylene glycol diacetate. Various embodiments herein use reactive distillation in processes promising enhanced economic viability in the production of high-quality ethylene glycol diacetate.

To provide an oil-in-water emulsion cosmetic with high moisturizing effect and viscosity stability. [Solution] An oil-in-water emulsion cosmetic comprising (A) a hydrophilic nonionic surfactant, (B) a higher aliphatic alcohol having 12 or more carbon atoms, (C) a polyethylene glycol difatty acid ester with a polymerization number of 20 or less of polyoxyethylene glycol, (D) an oil, and (E) water.

The invention discloses a fast-curing high-permeability chemical grouting material as well as a preparation method and application thereof. The chemical grouting material consists of a material A and a material B, the material A is composed of water glass and a functional additive; the material B is prepared from ethylene glycol diacetate and water; the functional additive is one or a mixture of two or more of a coagulation accelerator, a viscosity modifier, a reinforcing agent and a water-resistant agent; in the material B, the volume ratio of ethylene glycol diacetate to water is 1: (1-3); the volume ratio of the material A to the material B is (60-90): (3-30); the preparation method comprises the following steps: uniformly stirring and mixing the water glass and the functional additive to obtain a material A; uniformly stirring and mixing ethylene glycol diacetate and water to obtain a material B; before grouting, the material A and the material B are uniformly mixed and then immediately used for treatment projects such as reinforcement and water stop in grey sandstone stratums, and the problems that an existing grouting material is high in viscosity, curing time is difficult to regulate and control, and the strength of a cured body is insufficient can be solved.

The application belongs to the technical field of oil field chemical additives, and provides a fluid loss additive for oil well cement and a preparation method thereof.The fluid loss additive for oil well cement comprises raw materials, i.e., a high molecular polymer, a composite hydration agent, an additive, deionized water and potassium persulfate; the high molecular polymer is formed by graft polymerization of sulfonated polyether sulfone, acrylonitrile, hydroxyethyl methacrylate and sodium allyl sulfonate monomers; and the composite hydration agent is formed by compounding and cross-linking of TPEG-2400, silica ash, metakaolin and polyethylene glycol diacrylate.The preparation method comprises the following steps: mixing the above raw materials, and obtaining the fluid loss additive after constant temperature stirring reaction.The fluid loss additive for oil well cement can utilize the synergistic effect among raw materials, improve the temperature resistance and salt resistance of the fluid loss additive, the fluid loss performance and the cement stone strength, and has the advantages of simple preparation process, easily obtained raw materials, controllable cost, suitability for industrialized scale-up production, adaptability to cementing operation in deep well, ultra-deep well and high salinity environment, etc.

The application discloses a synthesis method of polyethylene terephthalate, which utilizes terephthalic acid and ethylene glycol diacetate as polymerization raw materials, and obtains polyethylene terephthalate through de-acetate exchange polymerization under the action of a catalyst. In the method, the non-expected condensation mode (such as forming a diethylene glycol fragment) does not appear to affect the polymer performance; and because EG is not used, the tolerance to oxygen is stronger during the reaction process, and the produced PET will be more resistant to oxidation and yellowing. On the other hand, the boiling point of EGDA is lower than that of EG, so that EGDA is easier to separate from the system in theory, and the evaporated EGDA can be directly used for the next polymerization without other impurities.

The invention discloses a production process of rPET, and belongs to the technical field of degradation and recycling of high polymer materials. According to the production process, an ethylene glycol / dimethyl sulfone / water ternary solvent system is adopted, urea is added as a catalyst and sodium dodecyl benzene sulfonate is added as a deinking agent, low-temperature normal-pressure depolymerization is carried out under ultrasonic assistance, a depolymerization product rBHET is subjected to a condensation polymerization reaction to obtain rPET, and ethylene glycol is recovered by combining thin film evaporation and nanofiltration after depolymerization. The production process provided by the invention realizes PET depolymerization under a low-temperature condition, and also has the characteristics of low raw material loss, low energy consumption, low ink residue and high product purity, and solves the problems of high comprehensive energy consumption and insufficient economical efficiency when the waste PET is recovered to generate rPET.

This present disclosure provides various diamine centered poly(amino acid)-saccharide-lipid conjugates. In various embodiments, the conjugates can safely be used as water solubility or bioavailability enhancers. In one aspect, the present disclosure provides a conjugate having the structural formula wherein B is a residue of a compound having three or four available binding positions, e.g., an alkylene diamine; S is a saccharide, for example, a residue of a mono-, di- or trisaccharide group, in which each saccharide unit is a sugar, a sugar alcohol, an amino sugar or a sugar acid; L is a lipophilic carrier residue selected from fatty acid residues (for example, residues of lauric acid, myristic acid, linoleic acid, palmitic acid, oleic acid and elaidic acid), steroid acid and sterol residues, and residues of retinoids carotenoids, tocopherols, and tocotrienols; Q is a residue of ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol or hexaethylene glycol; P is a residue of a polyaminoacid homopolymer; R2 is a terminal group selected from H, methyl, ethyl and maleimide; D is a secondary group that is as defined above for L or is a methyl-capped poly(ethylene glycol) residue; and d is 0, or d is 1.

The utility model discloses a water removal device for preparing ethylene glycol diacetate, and belongs to the technical field of ethylene glycol diacetate preparation equipment. The structure comprises a feeding conveying belt, a feeding driving motor, a water removal bin, a water removal driving motor and an exhaust pipe, a discharging opening is formed in the lower side of the feeding conveying belt in a matched mode, the lower portion of the discharging opening is matched with the upper end of the water removal bin in position, and a main rotating shaft extends inwards to the inner position of the water removal bin. The main rotating shaft is coaxially provided with water removal blades in the water removal bin, and a transition pipe is arranged below the water removal bin in a matched mode. According to the device, an ethylene glycol diacetate water removal device is optimized and improved, a water removal process is carried out on a product by adopting a water removal blade molecular sieve structural design, and compared with a traditional heating water removal mode, the water removal efficiency of the product is effectively improved.

The application relates to the technical field of ceramic industry, and provides a debonding agent capable of improving the thixotropy of mud and a preparation method thereof. The debonding agent comprises the following raw materials in parts by weight: 5-12 parts of enzymatic hydrolysis lignin, 3-10 parts of amino acid, 3-10 parts of glyoxal, 6-15 parts of methylene phosphonate, 6-15 parts of polyoxyethylene ether, 5-10 parts of polyethylene glycol diacrylate, 5-10 parts of acrylic monomer, 1.5-5 parts of cyclotriphosphazene crosslinking agent, 1-5 parts of silicate and 0.5-3 parts of tannic acid; the amino acid modified lignin is obtained through crosslinking reaction of enzymatic hydrolysis lignin, amino acid and glyoxal; the enzymatic hydrolysis lignin, amino acid, glyoxal, polyethylene glycol diacrylate, acrylic monomer and cyclotriphosphazene crosslinking agent are polymerized to form a crosslinking network, and the tannic acid is doped in the crosslinking network structure. The debonding agent provided by the application is compounded by using a polymer crosslinking structure and various functional raw materials, has good fluidity and thixotropy, and has very excellent debonding effect.

The invention discloses a clean type liquid fuel combustion improver, which is prepared from methylbenzene, isooctyl nitrate, ethylene glycol, 2, 6-di-tert-butylphenol, dimethyl carbonate, N, N '-di-sec-butyl p-phenylenediamine and auxiliaries. The combustion improver prepared by the method disclosed by the invention has a good combustion-supporting effect on liquid fuel, so that the fuel is more sufficiently combusted, and a higher combustion heat value is shown. Meanwhile, by adding the combustion improver disclosed by the invention, sulfur emission in a fuel combustion process can be effectively reduced, so that the fuel is more environment-friendly.

The invention discloses low-cost powder polyester for household appliances and a preparation method of the low-cost powder polyester. The low-cost powder polyester is prepared from ethylene glycol, diethylene glycol, trimethylolpropane, neopentyl glycol, adipic acid, purified terephthalic acid, trimellitic anhydride and monobutyltin oxide. According to the advanced preparation technology provided by the invention, through performance detection, the prepared resin is uniform in product molecular weight, good in compatibility with epoxy resin, high in wettability, high in curing speed and excellent in comprehensive performance after being cured with the epoxy resin, and the cost and performance of the resin are incomparable to those of traditional products in the market; and a very good technical effect is achieved.

The invention relates to a foam stabilizer as well as a preparation method and application thereof. The foam stabilizer is prepared from the following raw materials: xanthan gum, nanoparticles, polyethylene glycol succinate and N-vinylpyrrolidone. The nano particles comprise nano silicon dioxide and / or nano calcium carbonate. According to the foam stabilizer provided by the invention, xanthan gum and nano particles are combined through modification, so that the synergistic effect of xanthan gum and nano particles is exerted to the greatest extent, the liquid separation half-life period of the water-based drilling fluid containing xanthan gum is prolonged, the overall stability and temperature resistance of the water-based recyclable micro-foam drilling fluid are improved, and meanwhile, the stratum can be effectively blocked, and the filter loss is reduced; the foam stabilizer also has good solubility, can shorten the preparation period of the water-based recyclable micro-foam drilling fluid, and is convenient to use and beneficial to popularization and application.

A bioresorbable acoustic microrobot (BAMs) designed for precision medicine applications. Fabricated through two-photon polymerization, BAMs incorporate 7-diethylamino-3-thenolycoumarin, poly(ethylene glycol) diacrylate, pentaerythritol tetraacrylate, and Fe3O4 nanoparticles for magnetic steering, alongside encapsulated therapeutic agents. These microrobots feature an asymmetric dual-opening bubble-trapping cavity, enhancing acoustic propulsion and ultrasound imaging capabilities. The unique dual-surface layer chemistry ensures efficient operation in biological fluids, while hydrolysis-driven biodegradability minimizes residual harm. BAMs demonstrate sustained drug release, precise navigation, and effective tumor targeting, offering significant advancements over conventional microrobots in therapeutic interventions.

The invention provides a dental restoration material for 3D printing, a dental restoration and a preparation method. The dental restoration material is prepared from the following restoration raw materials in percentage by mass: 8%-16% of 1, 6-hexanediol diacrylate, 1%-5% of ethoxylated trimethylolpropane triacrylate, 9%-13% of polyethylene glycol 400, 0.2%-1% of diphenyl (2, 4, 6-trimethylbenzoyl) phosphine oxide, 1%-5% of a dispersing agent and 60%-85% of glass powder. Wherein the glass powder comprises the following components in percentage by mass: 50%-80% of SiO2, 10%-20% of Li2O, 0.5%-10% of K2O, 0.5%-15% of Al2O3 and 0.2%-10% of a nucleating agent. The nucleating agent is P2O5 and / or TiO2. The mechanical strength of a dental restoration body prepared from the dental restoration body material can exceed 200MPa.

Disclosed is a W / O / W emulsified composition exhibiting good stability. The W / O / W emulsified composition comprises an inner aqueous phase, an oil phase in which the aforementioned inner aqueous phase is dispersed, and an outer aqueous phase in which the aforementioned oil phase is dispersed, the aforementioned inner aqueous phase comprising an osmotic pressure adjusting agent, wherein the aforementioned osmotic pressure adjusting agent functions to generate an osmotic pressure between the aforementioned inner aqueous phase and the aforementioned outer aqueous phase, and comprises one or more selected from the group consisting of polyglycerin fatty acid esters having an average degree of polymerization of 2 to 9 of glycerin and polyethylene glycol dipolyhydroxystearate as a surfactant for emulsifying the aforementioned inner aqueous phase in the oil phase, and the aforementioned osmotic pressure adjusting agent comprises at least one selected from the group consisting of citric acid, citrate salts, and sulfate salts.

The utility model relates to the technical field of ethylene glycol diacetate processing, and discloses a rectifying tower for ethylene glycol diacetate processing, which comprises a rectifying tower body and a lifting adjusting component arranged inside the rectifying tower body. In the ethylene glycol diacetate processing process of the rectifying tower, through driving of the driving motor, the ball screw can be driven to be matched with the ball nut to achieve the purpose of lifting adjustment of the liquid collector on the connecting base, and then the position adjustment function is provided for the liquid collector; the position of the liquid collector capable of being adjusted up and down can be flexibly adjusted according to the height of the liquid level, collection of liquid at different liquid levels is ensured, the separation efficiency is improved, stable operation of the rectification process is ensured, when the connecting base ascends and descends on the adjusting cylinder, the pulley on the other side of the adjusting cylinder slides on the sliding groove, dredging is provided for the liquid collector on the connecting base, and the safety of the rectification process is improved. And the lifting stability of the liquid collector is further improved.

The invention provides a nano-adhesion-mediated induced bone regeneration hydrogel barrier membrane, which is prepared by the following steps: dissolving N-isopropylacrylamide and dimethylaminoethyl methacrylate in deionized water to form a hydrogel matrix, adding polyethylene glycol diacrylate and phenyl (2, 4, 6-trimethylbenzoyl) lithium phosphate, and stirring to form the hydrogel barrier membrane, thereby obtaining the nano-adhesion-mediated induced bone regeneration hydrogel barrier membrane. The preparation method comprises the following steps: uniformly stirring and mixing, performing ultraviolet light illumination, performing crosslinking to obtain composite hydrogel, spraying a nano-particle aqueous solution with the mass concentration of 10-15% on the surface of the composite hydrogel, and drying to obtain the nano-adhesion-mediated induced bone regeneration hydrogel barrier membrane, the bone regeneration barrier membrane is high in adhesion, does not swell at the temperature of 37 DEG C, can be applied to the bone defect repairing process in the biomedical field, and solves the problems that in the prior art, a guided bone regeneration barrier membrane needs to be fixed through a bone nail, cannot be completely attached to a wound surface and needs to be removed through a secondary operation.

The invention discloses a preparation method of ethylene glycol divinyl ether, and relates to the technical field of chemical synthesis. Comprising the following steps: 1, adding a catalyst and ethylene glycol into a high-pressure reaction kettle, and stirring and mixing; 2, performing nitrogen replacement for 2-4 times at a certain temperature; and 3, introducing acetylene, reacting, and carrying out post-treatment to obtain the ethylene glycol divinyl ether. The ethylene glycol divinyl ether prepared by the method has high conversion rate and selectivity, and meets the preparation requirements of ethylene glycol divinyl.

The invention belongs to the field of diethylene glycol production, and relates to a method and a system for increasing the yield of diethylene glycol (DEG) and triethylene glycol (TEG) by using an EOEG device. The method for increasing the yield of diethylene glycol and triethylene glycol comprises the steps that monoethylene glycol, ethylene oxide and optional diethylene glycol are subjected to an N-stage reaction in the presence of a catalyst, N is an integer not smaller than 2, a reaction solution obtained in the previous stage is subjected to interstage heat removal, ethylene oxide is supplemented, and then the reaction solution enters the next stage for reaction, a reaction solution containing monoethylene glycol, diethylene glycol, triethylene glycol and heavy alcohol is obtained after the N-stage reaction, and then monoethylene glycol, diethylene glycol, triethylene glycol and heavy alcohol are obtained through separation. According to the invention, a multi-stage reactor (preferably a multi-stage tubular reactor) is adopted, and a method of inter-stage heat removal and segmented ethylene oxide supplementation is combined, so that under the condition of ensuring safety, the supplementation amount of ethylene oxide can reach 45% (based on the total amount of raw materials except ethylene oxide being 100%), the yield of diethylene glycol and triethylene glycol is increased to the maximum extent, and the yield of ethylene glycol and triethylene glycol is increased to the maximum extent. The conversion per pass of monoethylene glycol is high, and the subsequent separation energy consumption is low. Meanwhile, a product scheme can be adjusted, and subsequently rectified diethylene glycol is returned to a reaction system, so that the yield of triethylene glycol is further increased.

The application discloses a method for synthesizing ethylene glycol diacetate by using a solid superacid catalyst. 2‑ The application discloses a method for synthesizing ethylene glycol diacetate by using a solid superacid catalyst of SO4 2‑ / TiO2-SiO2 type. The catalyst is prepared by co-precipitation of a titanium source and a silicon source, impregnation with dilute sulfuric acid and calcination, and has high specific surface area and rich strong acid sites. The catalyst can be used to catalyze esterification of ethylene glycol and acetic anhydride (or acetic acid) at 140-150 DEG C to efficiently generate ethylene glycol diacetate, the yield of which can be more than 90%, and the by-product is very little. The catalyst can be easily separated from the reaction system and has good recycling performance. The application has the advantages of high catalytic activity, good selectivity, no corrosion, recyclable catalyst and the like, and can be used for industrial production of ethylene glycol diacetate.

A composite anchor cartridge (1) comprising (i) a first container (2) with a first interior space (3) containing a reactive resin (6) with ethylene unsaturated groups; and (ii) a second container (4) with a second interior space (5) containing a particulate hardener (7); wherein the first container (2) is made of glass and is completely sealed; wherein the first container (2) is elongated and the maximum length of the first container (2) is at least 5 times longer than the maximum width of the first container (2) perpendicular to it; wherein the first container (2) has a circular cross-section along its longitudinal extent, the diameter of this circular cross-section being constant over at least 80% of the longitudinal extent of the first container (2); wherein the second container (4) is made of glass and is completely sealed;wherein the second container (4) is elongated and the maximum length of the second container (4) is at least 15 times longer than the maximum width of the second container (4) perpendicular to it; wherein the second container (4) has a circular cross-section along its longitudinal extent, the diameter of this circular cross-section being constant over at least 80% of the longitudinal extent of the second container (4); wherein the second container (4) is arranged in the first interior space (3) and wherein the first interior space (3) contains the reactive resin (6) outside the second container (4); wherein the first interior space (3) contains a particulate filler in addition to the reactive resin (6) and the second container (4); wherein the mean particle size of the filler is larger than the mean particle size of the hardener (7), each expressed as a particle size distribution with a D50 value, the D50 value being determined by sieve analysis as dry sieving according to DIN 66165;wherein the first interior space (3) has a length L1 and the second interior space (5) has a length L2, wherein L2 ≥ 0.72·L1 and L2 ≤ 0.95·L1; wherein in a vertical arrangement of the first container (2) the first interior space (3) is filled with the reactive resin (6) and the particulate filler up to a fill level F1, wherein F1 ≥ 0.64·L1 and F1 ≤ 0.95·L1; wherein the reactive resin (6) is liquid at 23°C; and wherein the hardener (7) comprises dibenzoyl peroxide phlegmatized with ethylene glycol dibenzoate, and wherein the dibenzoyl peroxide content is less than 50.0 wt% based on the total weight of the hardener (7).

The invention discloses a cement-based composite material which comprises the following components in parts by weight: 50-70 parts of Portland cement, 30-50 parts of a mineral admixture, 0.5-5 parts of modified bamboo fibers, 0.5-2 parts of a water reducing agent and 20-40 parts of water, the preparation method of the modified bamboo fiber comprises the following steps: step 1, taking 3-20mm bamboo fiber, soaking the bamboo fiber in a sodium hydroxide solution, and soaking after stirring; 2, cleaning with clear water, and drying to obtain alkali-treated bamboo fibers; step 3, putting the alkali-treated bamboo fibers into a solvent, adding diethylene glycol monovinyl ether and a catalyst, and reacting while stirring under a low-temperature condition; 4, diethylene glycol divinyl ether and glycerol are added for continuous reaction; 5, finally, a silane coupling agent is added for a reaction, and the modified bamboo fibers are obtained. The prepared modified bamboo fiber has good hydrophilicity and is connected with silane, the mechanical property of cement can be improved, and meanwhile better dispersing performance is achieved.