481 results about "Solvent based" patented technology

The invention belongs to the technical field of coatings, and relates to a polysiloxane epoxy hybrid environment-friendly coating and a preparation method thereof. The coating belongs to an environment-friendly solvent type coating with low VOC content, modified epoxy resin is adopted as a base, auxiliaries such as a film-forming agent and a dispersing agent are added, and benzophenone and tertiary amine composite photoinitiator is supplemented, so that the prepared coating has good corrosion resistance, high temperature resistance and the like, and the coating can quickly form a film at normal temperature and under the UV illumination condition, shortens the curing period, and is suitable for large-scale popularization and application. The emission of VOC (volatile organic compounds) is reduced.

The invention discloses a colorful TPO interior foot pad skin and a preparation method thereof, and relates to the technical field of automobile interiors. The surface functional layer is used for improving wear resistance, the colorful pattern layer is used for presenting a visual effect, and one surface, far away from the base material layer, of the bottom layer structure is of a 3D net-shaped structure; the surface functional layer comprises matte water-based PUD resin, matte water-based PUA resin, a wear-resistant additive, a cross-linking agent and a diluent; the colorful pattern layer comprises water-based or solvent-based poly-carbon type polyurethane resin, water-based or solvent-based color paste and auxiliaries; the base material layer comprises modified TPO resin, nano calcium carbonate, a light stabilizing aid and a pigment; the bottom layer structure comprises modified TPE, an AC foaming agent and a DCP cross-linking agent; through the innovation of the composite structure, the colorful pattern layer design, the environment-friendly TPO base material, the net-shaped bottom layer structure and the like, on the basis of meeting functional requirements, light weight and personalized upgrading of the foot pad skin are achieved.

This packaging material has a structure in which a transparent vapor-deposited barrier film, a stretched nylon film, and an unstretched polypropylene film are laminated in this order. The transparent vapor-deposited barrier film and the stretched nylon film are laminated with an adhesive layer formed of a cured product of a solventless adhesive agent therebetween. The ratio of the Young's modulus in the MD direction of the unstretched polypropylene film with respect to the thickness of the unstretched polypropylene film is 9.0 MPa / μm or more.

A quantum dot surface-modified with a ligand, a non-solvent curable composition including the quantum dot, a solvent-based curable composition including the quantum dot, a cured layer manufactured utilizing the curable composition, a color filter including the cured layer, a display device including the color filter, and a method of manufacturing the cured layer are disclosed.

The invention relates to the technical field of printing materials, in particular to an environment-friendly silk-screen printing ink diluent based on propylene carbonate and dimethyl carbonate, which comprises dimethyl carbonate and propylene carbonate, and the dimethyl carbonate and the propylene carbonate are compounded according to a certain proportion. The diluent further comprises a synergistic solvent and a functional additive which are added according to a certain proportion. The environment-friendly silk-screen printing ink diluent formula for silk-screen printing ink and the preparation method of the environment-friendly silk-screen printing ink diluent formula are particularly suitable for viscosity adjustment and printability optimization of solvent type oil black, have the characteristics of low volatility and high solubility, and solve the problems of high toxicity of a traditional solvent, poor stability of a compound system, insufficient printability and the like.

The invention discloses a method for predicting the lignin separation and extraction effect of a deep-eutectic solvent based on machine learning. The method comprises the following steps: constructing a sample database containing characteristic parameters such as hydrogen bond acidity, hydrogen bond alkalinity and polar surface area of the deep-eutectic solvent and a lignin removal rate; based on a solvent molecular structure, key characteristic variables influencing the lignin removal rate are extracted; a Stacking integration algorithm is adopted, Xgboost, RF and SVM are taken as base learners, CNN is taken as a meta learner, and a machine learning prediction model taking the removal rate as a target variable is constructed; performing hyper-parameter tuning by adopting five-fold cross validation, and constructing a machine learning prediction model; explaining the model by using an SHAP method, generating a feature importance ranking map and an SHAP value distribution map, and intuitively displaying the influence of key variables on the lignin extraction removal rate; finally, the lignin removal effects of different eutectic solvent systems are predicted through a machine learning model, and the solvent composition proportion is adjusted in combination with feature analysis so as to optimize the separation process.

The invention relates to the technical field of building coatings, in particular to an antibacterial, anti-fouling and flame-retardant water-based coating for a building outer wall. The solvent type building coating for the exterior wall is not environment-friendly and relatively single in function. Aiming at the technical problems, the invention provides the antibacterial, anti-fouling and flame-retardant water-based paint for the building external wall, and the defects that the traditional paint is single in performance, poor in durability and insufficient in environmental protection property are overcome through the molecular design of the multifunctional emulsion and the synergistic interaction of functional components; flame-retardant, anti-fouling and antibacterial structural functional units are introduced into the multifunctional modified acrylate emulsion at the same time, and the structural functional units cooperate and interact with one another, so that a molecular-level coating hierarchical structure of a flame-retardant core (HEMAP)-an anti-fouling layer (fluorosilicone)-an antibacterial shell is constructed; through interaction with other functional additives such as ADP, a photocatalyst and the like in a coating formula, the coating is endowed with relatively good comprehensive properties such as flame retardance, antibacterial property and pollution resistance.

The invention relates to the technical field of coatings, in particular to a solvent-free anti-doodling cover agent as well as a preparation method and application thereof. The solvent-free anti-doodling finishing agent is prepared from the following raw materials in percentage by mass: 80 to 95 weight percent of solvent-free methyl phenyl silicone resin, 1 to 5 weight percent of a curing agent, 3 to 8 weight percent of an adhesion enhancer, 0.5 to 3 weight percent of an anti-doodling auxiliary agent and 0 to 6 weight percent of an optional delustering agent. The core is that the adhesion enhancer is an enhanced silane coupling agent and is prepared by carrying out molecular-level chemical bonding on a titanium compound, the silane coupling agent and a self-made antifouling agent. The finishing agent disclosed by the invention has the advantages of high adhesive force, excellent stain resistance, adjustable glossiness and the like, and is suitable for base material protection of various scenes such as building outer walls, household crystal plating and artistic coatings.

The invention discloses a high-self-cleaning weather-resistant GRTV insulating coating for electrical equipment, which comprises the following components: a film-forming agent consisting of solvent-type fluororesin, hydroxyl-terminated polysiloxane, acrylic resin and polyether polyol, a reinforcing agent consisting of at least two of MQ silicon resin, silicon dioxide, silicon nitride and fluororesin micro powder, a filling agent consisting of aluminum oxide, a curing agent consisting of a curing agent and a solvent, the curing agent is composed of two or three components of tetraethoxysilane, methyltriacetamide silane, dimethyl diacetamide silane or dibutyltin oxide, and trichloroethylene or butyl acetate is used as an organic solvent; the anti-pollution flashover coating is good in adhesive force, excellent in electrical insulation performance, good in hydrophobicity, high in anti-pollution flashover capacity, excellent in mildew resistance, algae resistance and anti-burst scattering characteristic, good in self-cleaning performance and capable of better exerting the anti-pollution flashover efficiency under the conditions of high salinity, high humidity and heavy pollution, and the insulation strength is not affected by environment temperature and moisture.

The present application relates to thermal insulation coating technical field, specifically to a kind of low VOCs ultraviolet resistant thermal insulation coating composition and its performance testing device, consisting of the following mass parts components: water-based acrylic resin 30-45 parts, nitrogen-doped graphene 1-3 parts, nano composite powder 2-5 parts, low water absorption and expansion glass microsphere 8-12 parts, silane coupling agent modified sepiolite 5-10 parts, silane coupling agent KH560 0.5-1.5 parts, ultraviolet absorber UV-9 0.3-0.8 parts, hydroxyethyl cellulose thickening agent 0.2-0.5 parts;Composition meets the following conditions: (1) VOCs content≤50g / L;(2) ultraviolet absorption rate≥95%;The present application realizes the purpose that VOCs content is far lower than traditional solvent type coating through the synergistic effect of water-based acrylic resin system and low water absorption and expansion glass microsphere, while nitrogen-doped graphene and nano ITO-SiO2 Composite powder form ultraviolet-infrared dual-effect shielding layer, ultraviolet absorption rate, infrared reflectivity greatly improve, solve the problem that traditional anti-UV coating function is single, VOCs is overproof.

The invention belongs to the technical field of adhesive tapes, and particularly relates to a UV protective film for packaging substrate cutting and a preparation method thereof.The UV protective film comprises a PO base material layer, a non-solvent type UV viscosity-reducing adhesive layer and a PET release layer, and the non-solvent type UV viscosity-reducing adhesive layer is located between the PO base material layer and the PET release layer; the non-solvent type UV viscosity-reducing adhesive layer comprises the following components: an acrylate soft monomer, an acrylate hydroxyl monomer, an acrylate hard monomer, an acrylate monomer with a space crosslinking site, n-dodecanethiol, a photoinitiator and a photosensitive multifunctional group acrylate monomer. The non-solvent type UV viscosity-reducing adhesive layer is introduced, so that the preparation process is environment-friendly and free of solvent volatilization, the UV protective adhesive is high in viscosity and excellent in impact resistance before UV irradiation, the adhesive layer is stably attached before cutting, and the UV protective film is stripped at low stress and free of residual adhesive after irradiation.

The invention provides solvent-resistant polyurethane resin, which is prepared from the following substances in parts by mass: 60 to 90 parts of diol, 15 to 25 parts of diisocyanate, 3 to 8 parts of auxiliaries, 1.5 to 3 parts of 1, 4-bis (2-hydroxyethyl) piperazine, 2 to 4 parts of 2, 2-dimethylolpropionic acid, 0.5 to 2 parts of catalysts, 0 to 3 parts of 4, 4 '-dithiodibenzoic acid diglycidyl ester and 0 to 2 parts of sodium alginate. Meanwhile, the invention further provides a simple preparation method, and the prepared solvent-resistant polyurethane resin is low in soaking swelling rate, good in solvent resistance, high in tensile strength and simple in preparation process and can be applied to the industries such as chemical anticorrosive paint, printing ink and electronic packaging.

The present invention relates to a ligand exchange technique for III-V group colloidal quantum dots. By employing a ligand surface treatment method, the invention facilitates the ligand exchange process in III-V group quantum dots while enhancing their solvent dispersibility. Furthermore, by substituting heterogeneous ligands, the invention enables the production of quantum dot ink based on environmentally friendly solvents and its application in device fabrication. Accordingly, the present invention proposes III-V group colloidal quantum dots incorporating heterogeneous ligands, a method for manufacturing environmentally friendly solvent-based quantum dot ink, and an optoelectronic device utilizing the ink.

The invention belongs to the field of coatings, and particularly relates to an aspartic ester-terminated hyperbranched polysiloxane and a heavy anti-corrosion coating thereof, and a preparation method and application of the aspartic ester-terminated hyperbranched polysiloxane and the heavy anti-corrosion coating, the aspartic ester-terminated hyperbranched polysiloxane is hyperbranched resin which is composed of a polysiloxane Si-O-Si framework and has a three-dimensional space, and the aspartic ester-terminated hyperbranched polysiloxane contains secondary amino groups capable of being subjected to curing reaction with isocyanate. The preparation method comprises the following two steps: 1, carrying out Michael addition reaction on gamma-amino propyl triethoxy silane and diethyl maleate to obtain N-propyl triethoxy silane terminated by aspartate ester; and 2, carrying out hydrolytic condensation to obtain the aspartic ester terminated hyperbranched polysiloxane. Therefore, the aspartic acid ester coating of a high-solid-content solvent type and solvent-free system can be prepared, and the aspartic acid ester coating is used as a'primer-topcoat 'heavy anti-corrosion coating.

The invention relates to the field of coating fillers, in particular to a graphene oxide-based filler as well as a preparation process and application thereof. The graphene oxide-based filler is prepared from a main material graphene oxide and an auxiliary material, the graphene oxide composite material comprises the following components in parts by mass: 100 parts of graphene oxide as a main material, and 2-13 parts of a silane coupling agent, 5-12 parts of sodium peroxide, 3-12 parts of dopamine hydrochloride and 5000-30000 parts of deionized water as auxiliary materials. The preparation method of the graphene oxide-based filler comprises the following steps: (1) preparing slurry; (2) filtering the slurry; and (3) canning the slurry. The filler has the characteristics of improving the anti-corrosion effect of the anti-corrosion coating and prolonging the service life of the anti-corrosion coating, and is suitable for various coating systems such as water-based coatings, solvent-based coatings, solventless coatings and powder coatings.

The invention discloses a dual-curing rubbing primer as well as a preparation method and application thereof, and relates to the technical field of coatings. The dual-curing rubbing primer comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 3 to 12 parts of solvent-containing acrylate oligomer, 8 to 17 parts of polyurethane polycarbonate resin, 3 to 12 parts of polyurethane acrylic resin, 3 to 7 parts of bifunctional acrylic monomer, 8 to 22 parts of hydroxyl-containing UV polyurethane resin, 1 to 2 parts of photoinitiator, 0 to 0.5 part of flatting agent and 50 to 60 parts of diluent; the component B is prepared from the following raw materials in parts by weight: 65 to 75 parts of aliphatic polyisocyanate and 25 to 35 parts of solvent. The coating can be stably attached to the surface of the epoxy glass fiber composite board, and is high in adhesive force and good in covering power and boiling resistance.

The invention relates to a solvent type coiled material coating which comprises the following components in parts by weight: 30-40 parts of saturated polyester resin, 10-20 parts of modified polyester resin, 6-10 parts of amino resin, 0.2-1.0 part of a catalyst, 0.5-1.5 parts of a light stabilizer, 14-22 parts of pigment, 4.8-12 parts of an auxiliary agent and 8-25 parts of a solvent. According to the solvent type coiled material coating, the modified polyester resin is introduced to replace main resin in an existing technical scheme, under the synergistic effect of the saturated polyester resin and the modified polyester resin, the amino resin, the catalyst, the light stabilizer and the like are matched, the 400-hour chromatic aberration of QUVB in an artificial accelerated aging test can be effectively reduced, meanwhile, the curing and performance of a coating film are not affected, and the coating film has a good application prospect. And the paint can be widely applied to various coil steel base materials. The invention further discloses a preparation method and application of the solvent type coil coating.

The invention relates to the technical field of composite material engineering, and discloses a method for manufacturing a foam female die of an airplane model, which comprises the following steps: firstly, carrying out gradient grinding on the inner surface of the foam female die; filling the polished foam female die with an epoxy material and a putty material, and polishing again; the polished foam female die filled with the epoxy material and the putty material is coated with a microcrystalline wax sealing layer, and a solvent type release agent is sprayed; and carrying out a wet lamination process on the foam female die filled with the epoxy material and the putty material. A traditional mold is replaced with the corrodible modified foam female mold, so that the single-piece mold manufacturing cost is reduced, the period is shortened, the complex machining process of the traditional mold is not needed, the material cost is low, the manufacturing steps are simple and convenient, manpower and time investment is greatly reduced, the method is particularly suitable for small-batch customized production, and economic benefits are improved.

The invention provides a solvent-resistant double-component spraying polyurea coating and a preparation method thereof.The solvent-resistant double-component spraying polyurea coating comprises a component A and a component B. By adding bio-based modifier furfuryl mercaptan into the component B, a large number of saturated sulfur atoms are introduced, so that the water resistance and oil resistance of the coating are improved, the coating is prevented from being corroded by water and greasy dirt, the service life of the coating is prolonged, and the solvent-resistant double-component spraying polyurea coating is suitable for large-scale production. Meanwhile, raw materials used by the introduced bio-based modifier belong to renewable resources and are environment-friendly, the carbon footprint is reduced, and the environment-friendly requirement is met.

The invention relates to a method for sealing a substrate, comprising at least steps 1) and 3), by applying at least part of a solvent-based composition to a surface of the substrate to at least part form a film (1) on said surface, applying at least part of a sealant composition to the film obtained after step 1) to form a sealant film (3), wherein the sealant composition is obtainable by mixing at least two components A) and B) of a sealing system, which are present separately, with one another, the solvent-borne composition applied in step 1) comprising at least one aliphatic hydrocarbon as an organic solvent component a1) in an amount of at least 70.0 wt.-%, based on the total weight of the composition, at least one organometallate as component a2) in an amount of at least 70.0 wt.-%, based on the total weight of the composition, the present invention relates to a method for preparing a solvent-borne composition comprising at least one metal acid salt, the metal of which is selected from Ti and Zr, and at least one organosilane as component a3), sealing substrates obtainable by this method, the use of this solvent-borne composition as an adhesion promoting composition, the solvent-borne composition itself, and a kit comprising said solvent-borne composition.

The invention discloses a method for removing a coating in fiber content analysis of coated fabric, and aims to solve the problems that an existing coating removing method is unclear in damage to various fibers, and a large result deviation risk exists when the removing method is adopted. According to the technical scheme, the method is characterized by comprising the following steps: S1, deleting and selecting a potential solvent based on polarity matching: putting a plurality of groups of textile samples provided with coatings into a conical flask, respectively adding a candidate solvent capable of immersing the samples into each group of samples, and sufficiently shaking the conical flask; s2, setting temperature and time parameters: adjusting corresponding reaction temperature and decomposition time for each group of textile samples; according to the method, factors such as difficulty of dissolving conditions of various solvents, stripping effect of the coating and the base cloth and the like are screened and compared, and the optimal test condition for removing the coating in the coated fabric is optimized, so that the coating can be removed more thoroughly without damage, and the accuracy of subsequent test results is improved.

The present invention discloses a method for rapidly detecting the water content in a solvent based on the color change of CsPbBr3 perovskite nanocrystals. The method comprises: adding PbBr2 and CsBr as precursors to a good solvent for dissolution, then adding a ligand and mixing uniformly to obtain a precursor solution; adding a poor solvent to the precursor solution to obtain a CsPbBr3 and PAA composite colloid; dripping solvents of varying water contents and volumes into equal amounts of the CsPbBr3 and PAA composite colloids to obtain mixtures; measuring the fluorescence spectra of the mixtures after standing for the same period of time, obtaining the CIE coordinate colors corresponding to the fluorescence spectra, and obtaining a colorimetric chart; dripping a solvent to be tested into the CsPbBr3 and PAA composite colloid, measuring its fluorescence spectrum to obtain the corresponding CIE coordinate colors or obtaining its luminescent color under ultraviolet light, and comparing the color with the colorimetric chart to determine the water content of the solvent to be tested. The method can determine the water content of a solvent by visually observing the photoluminescent color of the perovskite colloid after the solvent has been added, thereby enabling rapid and convenient perovskite detection of the water content of the solvent.

The present invention discloses a method for preparing a solvent-free water-based ink binder polyurethane, belonging to the technical field of water-based ink materials. In response to the problems of low solid content, poor stability, and poor adhesion in existing polyurethane emulsions, the present invention provides a method for preparing a solvent-free water-based ink binder polyurethane, comprising: preparing prepolymers of different particle sizes at a rotation speed of 1500 to 2000 rpm and direct addition of water, and at a rotation speed of 300 to 500 rpm and dropwise addition of water; then mixing the two prepolymers, methyl methacrylate, and an initiator, and subjecting the mixture to a free radical polymerization reaction to obtain the polyurethane emulsion. By controlling the rotation speed during the shearing process and the method of adding water, and then controlling the mixing ratio of prepolymers of different particle sizes, and adding a non-solvent-type diluent and introducing a HEA terminal crosslinking agent, the present invention obtains a polyurethane emulsion with a high solid content and a multivariate particle size distribution, significantly improving the performance of the polyurethane.

The present invention addresses the problem of providing a solvent-type base coating material composition that can achieve both reduction in energy load and storage stability during formation of a coating film while maintaining the appearance of the coating film.　This solvent-type base coating material composition comprises: (A) a pigment containing one or more kinds selected from the group consisting of coloring pigments and flake pigments; (B1) a specific hydroxy group-containing acrylic resin having a weight average molecular weight of 10,000-20,000; (B2) a hydroxy group-containing acrylic resin having a weight average molecular weight of 3,000-7,500; (C) a blocked isocyanate compound; (E) a melamine resin containing a fully alkylated melamine resin; (D) polymer crosslinked fine particles insoluble and stably dispersed in a solution of the hydroxy group-containing acrylic resin (B1); (F) an acid catalyst having no counterion; and (G) an amine compound containing a secondary amine compound. The solid content is 35% by mass or more. When a viscosity V1 is measured at 23°C under a shear rate of 0.1 / sec using a cone-plate viscometer, followed by 30 seconds of shearing with the shear rate changed from 0.1 / sec to 25,000 / sec and then one second of shearing with the shear rate returned to 0.1 / sec, and a viscosity V2 is subsequently measured, the viscosity recovery rate V2 / V1, which is the ratio of V2 to V1, is 90% or more.

The utility model relates to the technical field of solvent type adhesive production, and discloses a batching device for solvent type adhesive production, which comprises a batching barrel, a plurality of feeding pipes are fixedly mounted at the top end of a top cover, the top end of each feeding pipe is connected with each material barrel, and the top end of each feeding pipe is provided with a feeding port. A stirring mechanism used for stirring adhesive materials is arranged from the top end to the bottom end of the top cover, a lifting mechanism is arranged from the top end to the bottom end of the top cover, and a cleaning mechanism used for cleaning a pipe opening of each feeding pipe is arranged at the side end of the lifting mechanism. Each outer scraper and each inner scraper can conveniently scrape and clean the pipe opening of each feeding pipe, so that the outer wall and the inner wall of the pipe opening of each feeding pipe can be cleaned at any time, splashing materials are prevented from forming stubborn stains at the pipe opening of each feeding pipe, the pipe opening of each feeding pipe is prevented from being blocked, and the service life of the feeding pipe is prolonged. Therefore, the blanking speed of the feeding pipe is prevented from being influenced.

The invention relates to the technical field of polyurethane, and particularly discloses a preparation process of solvent-free waterborne polyurethane dry powder. According to the solvent-free waterborne polyurethane dry powder disclosed by the invention, the solvent is removed, so that leakage in a storage process does not need to be worried, and main transportation capacity does not need to be consumed in transportation of the solvent, so that the transportation cost performance and the storage stability of a waterborne polyurethane product can be effectively improved.

The application provides a microcapsule, a composite fabric, a preparation method of the composite fabric and a summer quilt. The preparation method of the composite fabric comprises the following steps: A1, treating the top surface and the bottom surface of a moisture-permeable layer by using oxygen plasma; A2, adding microcapsules and a crosslinking agent into water to obtain a sticky liquid; coating the sticky liquid on the bottom surface and the top surface of the moisture-permeable layer in a dotted form, bonding the moisture-permeable layer and a moisture-removing and air-permeable layer by taking the top surface of the moisture-permeable layer as a bonding surface, bonding the moisture-permeable layer and a skin-friendly cool layer by taking the bottom surface of the moisture-permeable layer as a bonding surface, drying and hot pressing; the microcapsule comprises a core material and a shell covering the outside of the core material, the core material comprises a glue, and the glue is selected from glue A or glue B or a combination of the two, the glue A is a solvent-free moisture curing reaction type polyurethane hot melt adhesive, and the glue B is an acrylate with an epoxy group and / or a urethane group. The application can guarantee the moisture permeability and air permeability of the composite fabric.

SOLVENT COMPOSITIONS The present invention relates to a solvent composition for solvent-based paints or other coatings characterized in that it comprises a combination of dimethyl glutarate and at least one other compound selected from isobutyl acetate, ethyl lactate, dimethyl 2-methylglutarate, 2-methyltetrahydrofuran, ethyl acetate, cyclopentyl methyl ether, dithoxymethane, dimethyl carbonate, dimethyl succinate, benzyl alcohol, dimethyl adipate, and glyceryl triacetate. Fig. 1

The present disclosure relates to a two-component, solvent-based coating composition comprising i) a base component comprising one or more polyesterdiols with a hydroxyl value in the range of from 150 to 500 mg KOH / g and one or more organosilane-modified inorganic fillers, and ii) a polyisocyanate curing component. Said composition can be formulated such that it has a viscosity suitable for spray application (low viscosity under high shear rate) and yield coatings with very good erosion resistance. The present disclosure further relates to a method for coating a substrate using said two-component coating composition, to a coated substrate obtainable by such method, and to use of such coating composition for improving erosion resistance of a substrate.