402 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 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 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 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 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 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 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 invention discloses a color-printable anti-counterfeiting traceable irradiation indication label and a production process thereof, and belongs to the technical field of medical supplies. A label body comprises an irradiation indicating ink layer from top to bottom, solvent type irradiation color-changing ink is adopted, the irradiation indicating ink layer turns red from yellow when the irradiation dose is 5 kGy, and the irradiation indicating ink layer turns chestnut red when the irradiation dose is 100 kGy; the isolation ink layer covers the lower portion of the irradiation indication ink layer, and the edge of the isolation ink layer expands outwards by 0.5 mm-2mm; an irradiation dose grade comparison color block is printed on the irradiation indication description information layer; the anti-counterfeiting traceability information layer contains an ultraviolet invisible variable two-dimensional code; the alcohol-friction-resistant coating is composed of water-based ink-absorbing polyurethane resin and wear-resistant filler; according to the invention, the dose level of irradiated products can be rapidly judged, and the unique two-dimensional code on each label is combined with a data management platform of an enterprise, so that a product tracing function can be realized.

The invention relates to a method for producing a packaging material (10). The method comprises at least the steps of providing a substrate (12) which has a base material made of cellulose and a basis weight of at most 100 g / m². 2 The invention comprises coating at least one side of the substrate with a solvent-based pre-coating agent to produce at least one pre-coating (16) on the substrate (12) and coating at least one side of the substrate with an aqueous coating agent to produce at least one water vapor barrier layer (18), wherein the packaging material (10) has a maximum wet strength content of 100 g / t. The invention further relates to a corresponding packaging material (10) with a layer system (14) as well as a blank and packaging made from such packaging material (10).

This invention discloses a BMC material for preparing food contact products and its preparation method. The material comprises the following components by mass percentage: 12%–20% food contact grade styrene-based unsaturated polyester resin (compliant with GB 4806.7-2016); 3%–10% solvent-free PMMA powder; 0.5%–1% zinc stearate; 0.2%–0.6% curing agent TBIC; 0.01%–0.1% polymerization inhibitor TBHQ; 0.01%–0.05% stabilizer BHT; 20%–45% calcium carbonate; 10%–40% aluminum hydroxide; and 5%–10% glass fiber. This invention, by using low-cost food contact grade styrene-based resin combined with solvent-free PMMA powder and optimizing the ratio of TBIC to TBHQ, achieves near-zero styrene monomer residue in the product while reducing costs. This effectively solves the problems of high cost, difficulty in processability adjustment, and monomer residue risk associated with traditional food contact grade BMC materials. The cost of the resulting material can be controlled below 7 yuan / kg, and it has both flame-retardant and high-strength properties, making it a widely viable alternative to traditional food contact grade plastics.

A photoresist composition comprising one or more alkali-insoluble, non-solvent base materials present in a combined amount of more than 50 wt% based on the total solids of the photoresist composition; a non-polymeric ionic photoacid generator compound comprising an anion and an iodonium or sulfonium cation, the anion being represented by formula (1); a photodegradable quencher, a basic quencher or a combination thereof and a solvent: where Ar 1 for a monocyclic or polycyclic aromatic C 3-60 -Group stands; L 1 L represents a single bond or one or more binary linkage groups. 1 is free of fluorine; Z 1 an anion-stabilizing group, wherein Z 1is designed in such a way that it forms an intramolecular non-covalent bond with the sulfonate anion group, forming a ring with 5 to 8 atoms; and the remaining substituents are defined as shown here.

This invention discloses a method for preparing a water-based protective coating for pharmaceutical aluminum foil, relating to the field of pharmaceutical packaging materials technology. By using water as the core solvent, it solves the environmental pollution problems caused by traditional solvent-based coatings, while eliminating the fire safety hazards of flammable and explosive organic solvents. Furthermore, the addition of hydroxylated chitosan improves the adhesion between the coating and the aluminum foil substrate, effectively preventing coating peeling during transportation and storage, and also endows the coating with excellent antibacterial properties, reducing the risk of microbial contamination of pharmaceuticals. The introduction of polycaprolactone diol-modified acrylate significantly improves the coating's flexibility, preventing cracking at low temperatures, while also taking into account solvent resistance and abrasion resistance. This solves the problem of poor balance between flexibility and solvent resistance in existing water-based coatings, thereby ensuring the integrity of pharmaceutical packaging and the long-term stability of pharmaceutical quality.

The application belongs to the technical field of isocyanate curing agents, and particularly relates to a preparation method of a solvent type polyisocyanate curing agent, which comprises: under the action of a trimerization catalyst, diisocyanate monomers are subjected to a polymerization reaction in an inert gas, and then the obtained polyisocyanate is subjected to dilution by using solvent oil S100 to obtain the solvent type polyisocyanate curing agent; wherein the bromine index and the dissolved oxygen content of the solvent oil S100 simultaneously satisfy: the bromine index is less than or equal to 10 mgBr / 100g and the dissolved oxygen content is less than or equal to 7 mg / L, or 10 mgBr / 100g < the bromine index < 700 mgBr / 100g and the dissolved oxygen content is less than or equal to 3 mg / L. The application guarantees the high-temperature color number stability and storage viscosity stability of the solvent type polyisocyanate curing agent product obtained by dilution.

The application discloses a preparation method of a single-component water-oil mixed environment-friendly composite adhesive, and belongs to the technical field of composite special adhesives. The application combines water and oil in the composite adhesive under the premise that no emulsifier and dispersant is added, by grafting and polymerizing the adhesive with the water-based acrylic ester and monomer polymerization adhesive, so that the excellent characteristics of the oil-based adhesive and the water-based adhesive are organically combined. The composite adhesive has the safety, environmental protection and hygiene performance of the water-based adhesive, and overcomes the defects of the water-based adhesive, such as poor water resistance, slow setting and curing, and the like, and also has the functions of the solvent-based adhesive, such as fast setting, normal-temperature curing, water resistance, washing resistance and excellent initial adhesion effect, and overcomes the safety and environmental protection defects of the current composite adhesive industry.

The application belongs to the field of auxiliary agents, and particularly relates to a filler dispersant matched with alcohol-soluble ink and a preparation method thereof. The preparation method is as follows: polyether and phosphide are mixed to obtain a premix; the premix is heated, and then an acidifying agent is added to react to obtain a reaction product; the reaction product is sequentially cooled, filtered, discharged and packaged. The polyether, the phosphide and the acidifying agent are used to prepare the dispersant under strict operation conditions, the high-level dispersion and viscosity reduction ability of the alcohol-soluble ink when simultaneously using organic and inorganic fillers are improved, the dispersant is used for solvent type, solvent-free coating and printing ink, can stabilize the organic and inorganic fillers, especially titanium dioxide and silicon dioxide, can significantly reduce the viscosity of the grinding material, and increase the wetting and stability, and great convenience is provided and the cost is reduced.

To provide a method capable of easily and accurately detecting a deterioration state of a lubricant in a short time with a small amount, without requiring deterioration or cleaning of a detection device, and capable of detecting the deterioration state of the lubricant at various places without limiting the kind of a light source, with grease as the lubricant as a detection object in addition to lubricating oil.SOLUTION: A lubricant deterioration detection method includes a step of capturing an image of a lubricant alone or the lubricant diluted with a solvent together with a color sample using an imaging device, and a step of determining a deterioration state of the lubricant from image information of the captured lubricant alone or the lubricant diluted with the solvent based on image information of the captured color sample.SELECTED DRAWING: Figure 5