135 results about "Ethyl acrylate" patented technology

The invention relates to the technical field of optical transparent adhesives, and particularly discloses a flexible screen optical transparent adhesive film and a preparation method of the flexible screen optical transparent adhesive film. Comprising the following steps: mixing 2-ethylhexyl acrylate, 2-[2-[2-(2-hydroxyethoxy) ethoxy] ethoxy] ethyl acrylate, an acrylic acid short-chain prepolymer, a chain transfer agent and a photoinitiator, stirring, and performing ultraviolet irradiation to obtain an acrylic acid prepolymer; adding a coupling agent, a cross-linking agent, an antioxidant and a photoinitiator into the acrylic prepolymer, mixing, stirring, and carrying out vacuum defoaming to obtain a mixture; and filling the mixture between the release protective films and then carrying out ultraviolet curing. The flexible screen optical transparent adhesive film provided by the invention can meet low elastic modulus at normal temperature and low temperature, high peel strength at normal temperature and high temperature and excellent creep property, can balance the three components, can meet various requirements of flexible screen display equipment at the same time, and has a good application prospect.

The application relates to the field of decorative materials, in particular to a wear-resistant decorative paper and a preparation method thereof. The preparation method of the wear-resistant decorative paper comprises the following steps: coating wear-resistant paint on the surface of base paper to form a wear-resistant coating layer through drying treatment, so that the wear-resistant decorative paper is prepared; the wear-resistant paint is prepared by using acrylic acid hydroxy ester, ethyl acrylate and methyl methacrylate, so that the wear-resistant paint has good adhesion; the wear-resistant paint is prepared by using divinylbenzene and styrene, so that the hardness and strength of the film layer formed by the wear-resistant paint are improved; the wear-resistant paint is prepared by using vinyl silicone oil, so that the flexibility and water / oil repellency of the film layer formed by the wear-resistant paint are improved; the wear-resistant paint is prepared by using acrylic acid hydroxy ester, ethyl acrylate, methyl methacrylate, divinylbenzene, styrene and vinyl silicone oil, so that the prepared wear-resistant decorative paper has excellent wear resistance.

The invention discloses an acrylic acid silane ester self-renewal antifouling resin based on cation-pi interaction as well as a preparation method and application of the acrylic acid silane ester self-renewal antifouling resin. Methyl methacrylate, ethyl acrylate, triisopropylsilyl methacrylate, acrylic acid-2-methyl ethyl ester, paeonol methacrylate and acryloyloxyethyl trimethyl ammonium chloride are synthesized through a random free radical polymerization reaction with azodiisobutyronitrile and benzoyl peroxide as initiators. Wherein the methacrylic acid paeonol ester monomer is prepared by carrying out substitution reaction on paeonol and methacryloyl chloride. The anti-fouling agent is anchored on the surface of the coating again through cation-pi interaction, so that the anti-fouling effect is enhanced, and the coating still has good anti-fouling capacity even in a static environment.

The invention discloses a preparation process and application of modified polymer-based oil polish, and the preparation process comprises the following steps: adding deionized water into a reactor, adding an emulsifier and modified silicon dioxide, adding part of methyl methacrylate, ethyl acrylate, butyl acrylate and acrylic acid, and uniformly stirring; adding an ammonium persulfate aqueous solution for reaction, dropwise adding the residual parts by mass of methyl methacrylate, ethyl acrylate, butyl acrylate and acrylic acid, heating for reaction after the dropwise addition of the monomer is completed, cooling to room temperature after the reaction is completed, and filtering to obtain a modified acrylate emulsion; uniformly mixing the modified acrylate emulsion, a flatting agent, a wetting agent, a coalescing agent, a defoaming agent and deionized water, and filtering to obtain the modified polymer-based oil polish. The oil polish disclosed by the invention has excellent leveling property, high glossiness and good wear resistance.

The invention relates to the technical field of preparation of printing ink, in particular to a preparation method of high-water-resistance printing ink, which comprises the following steps: taking 50-80 parts of self-crosslinking waterborne polyurethane resin, adding 3-8 parts of silane coupling agent and 2-5 parts of hydroxyl-terminated polydimethylsiloxane, stirring for 1.5-3 hours, adding 1-4 parts of amino modified nano silicon dioxide, and carrying out ultrasonic dispersion to obtain amphiphilic modified resin; adding 1-3 parts of a titanate coupling agent into 15-30 parts of pigment, stirring, and adding mica powder and a dispersing agent to obtain a core-shell pigment and filler dispersion liquid; adding 2-6 parts of perfluoroalkyl ethyl acrylate copolymer into 5-12 parts of polyvinylidene fluoride emulsion, stirring, and adding a defoaming agent and an ultraviolet absorbent to obtain an interpenetrating network functional aid solution; adding the pigment and filler dispersion liquid into the amphiphilic modified resin, stirring at 60-80 DEG C, introducing nitrogen, and adding the auxiliary liquid for cross-linking in batches; and dropwise adding a thickening agent, and filtering to obtain the high-water-resistance printing ink. The ink prepared by the invention is excellent in water resistance, and an ink layer is not easy to fall off and swell; the storage is stable and the viscosity change is small; the device adapts to multiple scenes, and is resistant to chemical corrosion and ultraviolet aging; and printing is smooth, film forming is uniform, environmental protection is achieved, and industrial production is facilitated.

The invention relates to a preparation method of 3-ethoxy isoamyl propionate, and belongs to the technical field of organic solvent synthesis. The preparation method of the 3-ethoxy isoamyl propionate comprises the following steps: S1, adding ethanol, a polymerization inhibitor and a catalyst A into a reaction kettle, heating to 40-55 DEG C, then dropwise adding ethyl acrylate, preserving heat, and carrying out addition reaction for 1-3 hours to obtain a reaction mixture; s2, adding an acidic material for neutralization, and carrying out vacuum rectification to obtain ethyl 3-ethoxypropionate; s3, adding ethyl 3-ethoxypropionate and a catalyst B into a reaction kettle, heating to 100-120 DEG C, introducing isoamyl alcohol, controlling the reaction temperature to 100-115 DEG C, and carrying out transesterification for 2.5-4 hours to obtain a crude product; and S4, cooling to stop the reaction, separating to remove the catalyst B, and carrying out reduced pressure rectification on the obtained crude product to obtain the 3-ethoxypropionic acid isoamyl ester. The method has the effects of mild process, high conversion rate and high product yield.

The invention relates to the field of materials, and discloses a low-temperature-resistant fluororubber heat-shrinkable sleeve and a preparation method thereof. The low-temperature-resistant fluororubber heat-shrinkable sleeve is prepared by taking fluororubber, an ethylene-ethyl acrylate copolymer, a nano magnesium hydroxide flame-retardant graft and an attapulgite graft as main raw materials and an antioxidant, a lubricant and the like as auxiliary materials through the processes of mixing, extrusion, irradiation, expansion and the like. Wherein the nano magnesium hydroxide flame-retardant graft is obtained by carrying out surface phosphorus-silicon modification on nano magnesium hydroxide by using triphenyl isocyanate thiophosphate and 2-amino-1-(butyldimethylsiloxy) butane, and has an efficient flame-retardant effect; the attapulgite graft is formed by grafting attapulgite to a polymer, agglomeration is prevented, the low-temperature resistance can be better exerted, and the finally prepared heat-shrinkable sleeve has low-temperature resistance and flame retardance.

The application relates to the technical field of high polymer coating and discloses heat-insulating coating for building glass and a preparation method thereof.The heat-insulating coating for building glass comprises the following raw materials: methyl methacrylate, ethyl methacrylate, propyl acrylate, alkenyl titanium dioxide, acetone, sodium dodecyl benzene sulfonate, an initiator, a film-forming aid, a defoaming agent and multifunctional cross-linking additive.Through the participation of the multifunctional cross-linking additive in the preparation process of the heat-insulating coating for building glass, the selective property of the alkenyl titanium dioxide to the sunlight spectrum is utilized to shield infrared light and block ultraviolet light, so that the heat-insulating effect of the coating is realized; the prepared coating has excellent mechanical strength, corrosion resistance, adhesion, waterproof and antifouling properties and heat-insulating effect and has a long service life.

The invention belongs to the technical field of traditional Chinese medicine preparations, and particularly relates to a traditional Chinese medicine preparation for treating pleural effusion and peritoneal effusion and a preparation method thereof.The traditional Chinese medicine preparation is prepared from, by weight, 10-50 parts of traditional Chinese medicine extract, 30-70 parts of filler, 5-20 parts of enteric coating material, 5-15 parts of HPMC, 0.5-2 parts of triethyl citrate and 0.25-1.5 parts of magnesium stearate; poria cocos, polyporus umbellatus, rhizoma alismatis, astragalus membranaceus, curcuma zedoary, cassia twig, oldenlandia diffusa, sculellaria barbata, semen coicis and traditional Chinese medicine extracts are used as cores, the stability of volatile drugs is improved through an inclusion technology, and the volatile drugs are entrapped in a pH intelligent response type enteric coating material composed of aromatic ring-containing vinyl monomers, ethyl acrylate, DMAEMA and MAA. The traditional Chinese medicine preparation has the synergistic effect of efficiently inducing diuresis, activating blood circulation and eliminating tumors and enteric-coated long-acting directional delivery, and is suitable for patients with pleural effusion and peritoneal effusion, especially malignant effusion.

The application discloses a preparation method of a rare earth coordination type force-induced multi-fluorescent color variable gel, and comprises the following steps: dissolving a Schiff base ligand molecule, a monomer, an initiator and a crosslinking agent in deionized water, and stirring uniformly to obtain a stable solution, wherein the monomer is at least one of acrylamide, ethyl acrylate, methyl acrylate and methacrylic acid; adding a rare earth compound into the stable solution to obtain a prepolymer solution, and obtaining the rare earth coordination type force-induced multi-fluorescent color variable gel through free radical polymerization; the method has mild conditions, simple steps and is easy to realize. The application further discloses the force-induced multi-fluorescent color variable gel prepared through the preparation method; the types of the rare earth ions and the Schiff base ligand molecules are adjusted to obtain a multi-color fluorescent gel, and the visual fluorescent color change is realized under the action of external force. The force-induced multi-fluorescent color variable gel is combined with other functional materials to realize the integration of multiple functions, and can be applied to multiple fields such as optical devices and mechanical sensors.

The invention discloses a nano composite ionic gel material with impact resistance and a preparation method thereof, and belongs to the field of polymer composite materials. The preparation method comprises the following steps: mixing and heating 5-methyl-2-isopropyl phenol and tetrabutylammonium tetrafluoroborate to prepare a solvent, adding isobornyl acrylate, hexafluorobutyl acrylate, KH570 modified silicon dioxide nanoparticles, 2, 6-diphenyl phenoxyethyl acrylate, a photoinitiator and a cross-linking agent into the solvent, and uniformly stirring to obtain the photocuring coating. And carrying out photopolymerization to obtain the nano composite ionic gel material. The nano-composite ionic gel material with impact resistance prepared by the invention is soft in a normal state and low in modulus; and when high-speed impact occurs, rapid and efficient energy dissipation occurs in the interior, the modulus is sharply increased, and the intelligent protection effect of'being rigid when encountering rigid and being flexible when encountering flexible 'can be achieved.

This invention provides an antistatic pipe and its preparation method, comprising an inner layer, a middle layer, and an outer layer arranged sequentially from the inside out. The middle layer is a porous thin-walled steel pipe, and both the inner and outer layers are made of composite materials. By weight, the composite material comprises the following raw materials: 55-65 parts heat-resistant polyethylene, 6-10 parts high-density polyethylene, 5-15 parts ethylene-ethyl acrylate copolymer, 6-10 parts sulfonated polyolefin, 2-6 parts titanate-modified vermiculite powder, 3-7 parts phosphorus-nitrogen composite flame retardant, 2-4 parts nano-indium tin oxide, 1-1.5 parts zinc stearate, 0.5-0.7 parts antioxidant, and 1.5-2.5 parts maleic anhydride-grafted polyethylene. The synergistic effect of the multiple components in this invention enables the prepared antistatic pipe to achieve breakthroughs in antistatic, mechanical, and flame-retardant properties, making it suitable for high-risk environments.

This invention discloses a method for preparing ethyl 4-pyrazolamide. A dichloromethane solution of ethyl 3-(N,N-dimethylamino)acrylate is added dropwise to a dichloromethane solution containing a chlorine-containing reagent and N,N-dimethylformamide. After addition, the mixture is stirred until the reaction is complete, yielding a reaction solution. The reaction solution is then directly added dropwise to an alcoholic solution of hydrazine hydrate, and the resulting reaction yields ethyl 4-pyrazolamide. This method uses readily available raw materials, has mild reaction conditions, high yield, and is easily industrialized.

The invention discloses a surface-treatment-free water-based acrylate adhesive for a PVC (polyvinyl chloride) floor and a preparation method of the surface-treatment-free water-based acrylate adhesive, and belongs to the technical field of polymer adhesives. The adhesive comprises the following raw material components: 0.5-15% of ester-soluble chlorinated polypropylene and 26-32% of chlorine; 0.5-15% of acrylic acid; 1-5% of ethyl acrylate; 65 to 95% of butyl acrylate; 0.5 to 3 percent of nano ZnO emulsion; 0.5 to 2% of an aziridine cross-linking agent; 1-5% of a nonionic surfactant; 0.1-1% of a water-soluble initiator; wherein the ester-soluble chlorinated polypropylene is introduced by being dissolved in a mixed monomer of ethyl acrylate and butyl acrylate in advance. The obtained adhesive is good in stability and high in initial adhesion, surface treatment-free adhesion is realized, and the initial adhesion and cohesion are balanced; meanwhile, the coating has excellent heat resistance and creep resistance, is a full-water-based system, is extremely low in VOC content, is green and environment-friendly, and has important industrial application value.

The invention discloses a high-fall, high-color and high-gloss injection molding panel colored drawing process which comprises the following steps: S1, selecting printing ink with a corresponding color, and putting the printing ink into each corresponding ink box in a colored drawing machine; s2, the plastic panel is placed on a colored drawing machine, and ink-jet colored drawing is conducted on the plastic panel through a spray head; s3, UV curing is carried out after colored drawing is completed; the ink is prepared from the following components in parts by weight: 10 to 20 parts of inorganic pigment, 5 to 15 parts of ethyoxyl ethyoxyl ethyl acrylate, 35 to 45 parts of 2-phenoxyl ethyl acrylate, 5 to 15 parts of N-vinyl caprolactam and 1 to 10 parts of dipropylene glycol diacrylate. No volatile organic compound is discharged in the ink, and no VOC is generated when the ink is cured, so that the environmental pollution is greatly reduced; the obtained pattern has good adhesive force, alcohol resistance, light resistance and humidity and heat resistance on a plastic part, and has the characteristic of high fall, and the colored pattern has the characteristics of high color, high gloss and high light transmission, and is more diversified in color.

The invention relates to a sound-insulation water-based paint for building floor slabs and a preparation method thereof, and belongs to the technical field of water-based paints. The preparation raw materials of the sound insulation water-based paint comprise water-based epoxy resin, a water-based curing agent, a sound insulation filler A, a sound insulation filler B and an auxiliary agent, wherein the auxiliary agent is at least one of a coalescing agent, a defoaming agent, a flatting agent and an anti-aging agent; the ionic liquid, the dipropylene glycol diacrylate and the ethyl acrylate are crosslinked into a polymer layer through free radical polymerization reaction, and the surface of the hollow glass bead is coated with the polymer layer, so that the sound insulation filler A is prepared; the preparation method comprises the following steps: carrying out SN2 nucleophilic substitution reaction on N-vinyl imidazole and 2-bromoethanol, and carrying out reaction on a product and 4-ethyl phenyl isocyanate, so as to prepare the ionic liquid; and modifying the nano clay by using an epoxy silane coupling agent to prepare a sound insulation filler B. The sound insulation water-based paint solves the problem of uneven dispersion of the hollow glass beads, and the impact sound pressure level improvement amount can reach 17.9 dB through weighting of a synergistic effect.

The application provides a kind of adhesive film composition, encapsulation adhesive film and photovoltaic module. The adhesive film composition includes 100 parts of base resin, 1-10 parts of crosslinking agent and 0.01-5 parts of catalyst by weight fraction; wherein, the crosslinking agent is binary ester compound and / or polybasic ester compound, the catalyst is ester exchange reaction catalyst, and the base resin is selected from any one or more of ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer. Under certain stimulation (generally heating), the encapsulation adhesive film can be melted, which easily separates the parts of the photovoltaic module. Not only the encapsulation adhesive film can be recycled, but also the other parts of the photovoltaic module can be recycled without damage, improving the recycling efficiency. In addition, even if the encapsulation adhesive film has problems such as bubbles after lamination, it can be re-laminated through the principle of reversible crosslinking, thereby improving the yield of the product.

The application discloses a kind of nanometer composite ionic gel materials with impact resistance and a preparation method thereof, and belongs to the field of polymer composite materials.The application prepares a solvent by mixing and heating 5-methyl-2-isopropyl phenol and tetrabutylammonium tetrafluoroborate, then adds isobornyl acrylate, hexafluorobutyl acrylate, KH570 modified silicon dioxide nanoparticles, 2,6-diphenyl phenoxy ethyl acrylate, a photoinitiator and a crosslinking agent in the solvent, and the nanometer composite ionic gel material can be obtained after photopolymerization.The nanometer composite ionic gel material prepared by the application is soft and has low modulus in normal state, but when subjected to high-speed impact, rapid and efficient energy dissipation occurs inside, the modulus sharply rises, and the intelligent protection effect of "encountering rigidity to be rigid, encountering softness to be soft" can be realized.

The application provides a kind of hard carbon material based on activated carbon and its preparation method and application, it is related to electrochemical energy storage technical field.The preparation method of hard carbon material based on activated carbon includes: activated carbon is dipped in initiator, is obtained after stirring, drying mixed material;The mixed material is pre-crosslinked with vinyl monomer, then the pre-crosslinked product is heat treated, finally carbonization;The vinyl monomer includes one or more of styrene, divinyl benzene, methyl acrylate, 1,4-butadiene, propylene, acrylonitrile, ethyl acrylate, acrylic acid, acrylamide.The hard carbon material provided by the application is prepared by the preparation method.The hard carbon material provided by the application is used for lithium, sodium ion battery negative material.After activated carbon is filled with vinyl monomer, crosslinking and carbonization, the hard carbon material is prepared, and the electrochemical performance and cycle life are better, the sodium storage capacity is excellent, and it is a better lithium, sodium ion battery negative material.

This application relates to the field of pharmaceutical formulation technology, and particularly to a cefcarditol hydrochloride pulse formulation and its preparation method. The cefcarditol hydrochloride pulse formulation of this application comprises a first particle, a second particle, and a third particle. Each particle, from the inside out, has a particle layer, an isolation layer, and a pulse layer. The pulse layer comprises a film-forming agent and an anti-adhesion agent. The film-forming agent in the first, second, and third particles sequentially comprises one or more of the following: butyl methacrylate-(2-dimethylaminoethyl) methacrylate-methyl methacrylate copolymer, methacrylate-ethyl acrylate copolymer, methacrylate-methyl acrylate copolymer, methyl acrylate-methyl methacrylate-methacrylate copolymer, and shellac. The cefcarditol hydrochloride pulse formulation of this application allows for once-daily dosing, effectively alleviating the problems of difficulty in taking cefcarditol hydrochloride tablets and poor patient compliance.

This invention belongs to the field of coating preparation technology and provides an aerogel-reinforced antifouling coating for ships and its preparation method. A fluorosilicone prepolymer is prepared by reacting perfluorohexyl ethyl acrylate with a silane coupling agent under the action of azobisisobutyronitrile (AIB). This prepolymer is then mixed with hydroxyl-terminated polydimethylsiloxane and PEEK nanofibers to obtain a resin matrix. An aerogel is prepared by hydrolyzing tetraethyl orthosilicate to form a SiO2 gel, followed by solvent replacement and perfluorinated surface modification. A chromium-based metal-organic framework composite material is prepared by hydrothermal method and then composited with an ionic liquid to obtain an ionic liquid composite additive. Microsphere additives are prepared by emulsion polymerization, and surface structure properties are further controlled by etching processes. The resin matrix, aerogel, ionic liquid composite additive, microsphere additive, and solvent are mixed to obtain the aerogel-reinforced antifouling coating for ships.

The multilayer film (100) may include a first skin layer (102), a second skin layer (104), and a core (106) between the first skin layer (104) and the second skin layer (102). The first skin layer (102) and / or the second skin layer (104) may independently comprise a linear low density polyethylene (LLDPE) resin. The core 106 may include a first core layer (108), a second core layer (110), and a third core layer (112). The first core layer (108) and the third core layer (112) may independently comprise high density polyethylene (HDPE), LLDPE, or a combination of these. The second core layer (110) may include an ethylene-based copolymer selected from the group consisting of an ethylene / propylene copolymer, an ethylene / butyl acrylate copolymer, an ethylene / ethyl acrylate copolymer, an ethylene / methyl acrylate copolymer, and an ethylene / vinyl acetate copolymer. The thickness of the second core layer (110) may be less than 15% of the thickness of the multilayer film (100). At least one of the core layers (108, 110, 112) may comprise HDPE.

The utility model relates to the technical field of hydroxyethyl acrylate production, and provides a distillation still for hydroxyethyl acrylate preparation, which comprises a distillation still body, a support frame is fixedly mounted at the bottom of the distillation still body, and a sealing cover is fixedly mounted at the upper end of the distillation still body. A fixed top frame and a fixed bottom frame are fixedly mounted on the inner wall of the distillation kettle body, a rotating column is arranged between the fixed top frame and the fixed bottom frame, a movable groove is formed in the rotating column, and the bottom of the movable groove extends to the bottom of the rotating column; through the unique structural design, the stirring branch rods can be used for stirring from different angles while the stirring rods are used for stirring, so that the stirring efficiency is effectively improved, the distillation efficiency is further improved, and meanwhile, the distillation efficiency is improved. And the first driving mechanism and the rotating column are detachably designed, so that a worker can conveniently disassemble and assemble the sealing cover.

The application provides a self-healing ion-electron integrated adhesive and a preparation method thereof. The adhesive is a triblock copolymer (PHUP) formed by copolymerization of three monomers of 2-hydroxyethyl acrylate (HEA), 2-(3-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl)ureido) ethyl methacrylate (UPyMA) and polyethylene glycol monomethyl ether methacrylate (PEGMA), and is formed by in-situ reaction of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid) (PEDOT:PSS) on a negative electrode sheet of a full solid-state battery. The adhesive has both fast ion and electron conducting capacity and excellent self-repairing function, effectively improving the specific capacity and cycle stability of the full solid-state battery.

The invention discloses an anti-permeation glue and a preparation method and application thereof, 100 parts by weight of the anti-permeation glue comprises 15-25 parts of bio-based wax microspheres, 2-5 parts of a Pickering particle stabilizer, 30-50 parts of a multistage gradient crosslinking monomer, 0.5-1.5 parts of a water-based photoinitiator, 3-8 parts of a graphene oxide-chitosan hybrid dispersion liquid, 1-3 parts of a glycosyl gemini surfactant and the balance of deionized water. Wherein the multi-section gradient cross-linking monomer is prepared from ethyl acetoacetoxymethacrylate, tripropylene glycol diacrylate and bisphenol A epoxy diacrylate according to the mass ratio of (2 to 3) to (3 to 4) to (1 to 3). The oil-proof coating is based on 100% of water and has zero VOC, the air permeability loss is smaller than or equal to 10% on the premise that the oil-proof grade is larger than or equal to 6, molten drops are avoided during combustion, and the oil-proof coating can be coated at the low temperature of 60-70 DEG C.

This invention relates to the field of rotary kiln technology, specifically to an automatic feeding and melting device and method for perfluoroalkyl ethyl acrylate reactive potassium salt powder. The device includes a rotary kiln drum capable of rotation and heating. One end of the rotary kiln drum is covered with a rotating cover that rotates with the drum. A separate sleeve is connected to the side of the rotating cover away from the drum, allowing relative rotation between the rotating cover and the sleeve, while maintaining a sealed connection. This invention enables the automatic feeding of perfluoroalkyl ethyl acrylate reactive potassium salt powder while keeping the rotary kiln drum sealed, preventing the escape of harmful gases. Furthermore, the powder is evenly spread through vibration of the feeding tube, and with rotation control, the powder is discharged through an array of feeding holes, significantly improving the uniformity of the feeding process.

The invention discloses a masonry hole rapid layering repairing composite material and method based on solid waste, and belongs to the technical field of building material repairing and solid waste recycling. The composite material is composed of 10-30 parts of alpha-ethyl cyanoacrylate (ECA) and 1-30 parts of alkaline solid waste powder, such as combustion ash powder CAP and alkaline residue powder SRP. The repairing method comprises the steps that after holes are cleaned, a layering process is adopted, an alkaline powder layer with the thickness of 2-3 mm is firstly filled, then ECA is poured to infiltrate the holes and initiate second-level curing, and operation is cycled till the holes are filled. According to the invention, high alkalinity of industrial solid waste is utilized to initiate rapid polymerization of ECA, and the solid waste is used as a reinforcing filler; by optimizing the layering thickness, the technical problems of incomplete internal curing, concentrated heat release, generation of pores and layering and the like during large-volume repair are effectively solved, and ultra-rapid forming, high early strength, excellent interface bonding performance and overall compactness of the prosthesis are realized. The method is simple in process, green, economical, high in field adaptability and particularly suitable for rapid in-situ repair of cement-based materials and red brick masonry.

The invention discloses a high-strength acrylic structural adhesive and a preparation method thereof, and belongs to the technical field of structural adhesives. The high-strength acrylic structural adhesive comprises a component A and a component B, the component A comprises an acrylate monomer, a first cross-linking agent, an antioxidant, a polyacrylate elastomer, a polymerization inhibitor, a reducing agent and modified mesoporous silica; the component B comprises an acrylate monomer, a first cross-linking agent, a polyacrylate elastomer, a polymerization inhibitor, an oxidizing agent and modified mesoporous silica; the acrylic ester monomers comprise ethyl methacrylate and lauryl methacrylate; 2, 4, 6-triallylphenol is adopted as the antioxidant; the polyacrylate elastomer is obtained by carrying out composite reaction on 2-acrylamido-2-methyl-1-propane sulfonic acid polymer particles, ethyl acrylate, vanillin methacrylate, an initiator and a second cross-linking agent; the second cross-linking agent is prepared from ethylene glycol dimethacrylate and triallyl phosphite ester.

The application discloses a preparation method of temperature-sensitive chitosan-based microcapsules based on double emulsion-single coagulation and application thereof, and the preparation comprises the following steps: reacting vanillin, isocyanate ethyl acrylate and dibutyl tin dilaurate to obtain vanillin modified isocyanate ethyl acrylate, uniformly mixing the vanillin modified isocyanate ethyl acryate with diacetone acrylamide and potassium persulfate, and then heating and reacting to obtain a temperature-sensitive crosslinking agent oligomer; emulsifying water / oil emulsion, chitosan and oil / water emulsifier, and then dropping the temperature-sensitive crosslinking agent oligomer to obtain the temperature-sensitive chitosan-based microcapsules. The temperature-sensitive chitosan microcapsules prepared by the application are green, low-carbon, environment-friendly and biodegradable, can coat water-soluble active substances and oil-soluble active substances at the same time, and have temperature-sensitive controllable release performance; the microcapsules can be coated on the surface of fabrics to obtain fabric coatings. The temperature-sensitive chitosan microcapsules can be applied to the fields of medical protective articles, home textile fabrics, sportswear, curtains, leather products and paper.

The invention relates to a method for preparing self-crosslinking fluorinated polyacrylate by adopting an emulsion polymerization method. Different addition amounts of the cross-linking agent have direct influences on the thermal stability and the application effect of the self-crosslinking fluorinated polyacrylate and the surface wettability of the finished cotton fabric, a test result shows that along with the increase of the content of the cross-linking agent, the thermal stability of the fluorinated polyacrylate is enhanced, the film-forming property of a polymer film is reduced, and the thermal stability of the fluorinated polyacrylate is improved. A complete water-repellent film cannot be formed on the surface of the cotton fabric, the static contact angle is reduced, and meanwhile, the washability of the finished cotton fabric is improved. The preparation method is characterized in that an environment-friendly material is used for replacing a long-chain perfluoroalkyl material with biological accumulation, perfluorohexyl ethyl acrylate, butyl acrylate and methyl methacrylate are used as comonomers, gamma-methacryloxypropyltrimethoxysilane is used as a cross-linking monomer, and the perfluorohexyl ethyl acrylate, the butyl acrylate and the methyl methacrylate are used as cross-linking monomers; the self-crosslinking fluorinated polyacrylate is prepared by adopting an emulsion polymerization method.