303results about "Wax coatings" patented technology

The invention relates to the technical field of waterproof coatings, in particular to a polyurethane waterproof coating and a preparation process thereof. The polyurethane waterproof coating is prepared from the following raw materials: toluene diisocynate, polyether polyol, chlorinated paraffin, talcum powder, a latent curing agent, self-repairing microcapsules and temperature-sensitive polymer nanoparticles. According to the self-repairing capsule, hexamethylene diisocyanate serves as a core material, the outer layer of the self-repairing capsule is wrapped with a polyurethane / nano-silicon dioxide hybrid wall material or a urea-formaldehyde resin wall material, and the temperature-sensitive polymer nanoparticles are poly N-isopropylacrylamide. The self-repairing microcapsules and the temperature-sensitive polymer nanoparticles are used, the self-repairing capacity and the capacity of adapting to different environmental conditions of a coating film are improved, when tiny cracks occur in the coating film, the microcapsules are broken to release a repairing agent, the cracks are automatically filled, the integrity of the coating is recovered, and the self-repairing performance of the coating film is improved. And the temperature-sensitive polymer nanoparticles can expand when the temperature rises to further promote the flowing and curing of the repairing agent, so that the service life of the coating film is prolonged, and the maintenance cost is reduced.

A wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method of treating a wood substrate therewith, and a wood product produced therefrom are provided. The wood preservative composition comprises at least 0.5% by weight of DCOI based on the total weight of the composition and a retaining additive comprising a solvent-borne polymeric resin, N a wax, or a combination thereof. A weight ratio of the DCOI to the retaining additive in the composition is in a range of 1:5 to 5:1.

The invention relates to the field of coatings, and discloses a biomass-based oil-resistant coating and a preparation method thereof, the coating comprises an additive solution, a paraffin solution and gallic acid; the paraffin solution is obtained by dissolving paraffin in absolute ethyl alcohol; a preparation method of the additive solution comprises the following steps: mixing chitosan powder and an acetic acid aqueous solution to prepare a chitosan solution, ultrasonically dispersing functionalized montmorillonite in deionized water to prepare a suspension, then uniformly mixing the chitosan solution and the suspension, adding modified phytic acid prepared by grafting phytic acid and ethylene glycol diglycidyl ether, and stirring to react; the functional montmorillonite is prepared by modifying modified montmorillonite with titanium dioxide and zinc oxide, then activating the modified montmorillonite with 3-aminopropyltriethoxysilane and succinic anhydride, and then carrying out a ring-opening reaction with glycidyl neodecanoate. The coating prepared by the invention has high water resistance, the Kit oil-proof grade is kept at grade 12, and the oil-proof performance of the coating is greatly improved. Meanwhile, the antibacterial performance, the tensile index and the ultraviolet aging resistance are relatively high.

A wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method of treating a wood substrate therewith, and a wood product produced therefrom are provided. The wood preservative composition comprises at least 0.5% by weight of DCOI based on the total weight of the composition and a retaining additive comprising a solvent-borne polymeric resin, a wax, or a combination thereof. A weight ratio of the DCOI to the retaining additive in the composition is in a range of 1:5 to 5:1.

The invention relates to the technical field of functional label paper, in particular to degradable bio-based hot-melt pressure-sensitive adhesive label paper and a preparation method thereof.The degradable bio-based hot-melt pressure-sensitive adhesive label paper comprises a base material layer, a hot-melt pressure-sensitive adhesive layer and a release layer; 30-50 parts of the base material layer is a polylactic acid / bamboo fiber / nanocellulose composite film; 40-60 parts of the adhesive layer contains poly (butylene adipate-butylene terephthalate) and the like, and contains a composite toughening agent; and 5-10 parts of a release layer is a beewax / chitosan / montmorillonite coating. The mechanical and adhesive properties of the label paper are improved, and the label paper is good in weather resistance, full-degradable, environment-friendly, stable in process, suitable for the fields of food and medicine and capable of supporting industrialization.

The invention discloses a wear-resistant high-gloss nano liquid, a wear-resistant high-gloss ceramic tile and a preparation method of the wear-resistant high-gloss ceramic tile, and belongs to the technical field of ceramic manufacturing. The wear-resistant high-gloss nano liquid at least comprises a component A, a component B and a component C which are independently subpackaged, wherein the component A comprises large-particle silica sol, boric acid, sodium methyl silicate, carboxymethyl cellulose sodium, a boronizing stabilizer and the balance of water; the component B comprises a boronizing stabilizer and the balance of water-based modified silicone oil; and the component C is wax emulsion. Through systematic material and process innovation, the ceramic tile which is high in gloss, strong in antifouling property, durable in wear resistance and high in transportation performance is prepared, and the market requirements of surface treatment materials which are high in performance, low in cost and easy to transport are met.

The invention relates to the technical field of packaging materials, in particular to a preparation method of a food heat-preservation environment-friendly quick-transportation packaging bag. The prepared quick-transportation packaging bag sequentially comprises an outer film layer, a heat preservation layer, an aluminum foil layer and an inner film layer from outside to inside. The outer film layer and the inner film layer are made of a blend of polylactic acid, carboxymethyl starch and glycerol, the thermal insulation layer is formed by compounding a phase change capsule, silicon dioxide aerogel and a polyurethane adhesive on an aluminum foil layer, the phase change capsule takes a mixture of n-octadecane and paraffin as a core material and takes Arabic gum as a wall material, and the outer surface of the wall material is coated with a stearic acid film layer; an antibacterial coating containing microwave modified beewax, a functional additive and 3-aminopropyltriethoxysilane is sprayed on the inner surface of the inner film layer; the prepared quick-transportation packaging bag has excellent heat preservation performance and antibacterial performance, also has good degradability, is environmentally friendly and can meet multiple requirements of modern food logistics for packaging.

The invention discloses a preparation method of a recyclable electric sensing coating for defect detection. The preparation method is characterized by comprising the following steps: S1, preparing an electroluminescent unit EL; s2, preparing field coupling microspheres FCM based on an electroluminescent unit EL; and S3, preparing the recoverable electric sensing coating based on the field coupling microsphere FCM. The method has the advantages that electric field sensing and an environmental protection concept are successfully combined, and a low-cost, high-sensitivity and lossless polymer interface defect detection method is created. By visualizing the distribution of the electric field around the defect, the REC not only solves the bottleneck of the traditional technology in the aspects of detection precision, economy and environmental protection (recycling), but also provides a new way for realizing the fine management and maintenance of the material state, and has far-reaching significance for promoting the stable operation in the fields of electrical equipment and electronic equipment.

The invention discloses a straw fiber-based antibacterial mulching film with temperature and humidity response performance and a preparation method, and belongs to the technical field of agricultural mulching films, the straw fiber-based antibacterial mulching film with temperature and humidity response performance comprises a bottom film layer, a slow release layer and a barrier layer in sequence from bottom to top; the slow-release layer is obtained by coating the base film layer with a mixed solution of acetic acid, a bactericide, gelatin and a plasticizer; the barrier layer is obtained by coating palm wax emulsion on the surface of the slow release layer. According to the invention, palm wax, a bactericide (carbendazim), gelatin and a wheat straw fiber-based mulching film are combined to construct the wheat straw fiber-based temperature and humidity response type bacteriostatic mulching film. The straw fiber-based antibacterial mulching film can respond according to the change of environmental temperature and humidity to realize accurate release of pesticides, so that diseases are accurately regulated and controlled.

This invention discloses a method for preparing a microcapsule-based photothermal self-healing anti-icing coating, belonging to the field of functional coating materials technology. The method includes: obtaining the core material and wall material composition parameters of the microcapsules, and collecting the polyacrylamide concentration and dopamine polymerization time; constructing a morphology-photothermal correlation model of the microcapsules to obtain the predicted photothermal conversion efficiency; performing multi-objective optimization on the core and wall material composition parameters with the target photothermal conversion efficiency as a constraint, and iteratively inverting to obtain the optimal microcapsule configuration; preparing primary microcapsules and composited with a dopamine photothermal modification layer on their surface to obtain a photothermal self-healing microcapsule additive; mixing the photothermal self-healing microcapsule additive with an epoxy resin-based coating at an adaptive mass ratio, coating and curing to obtain an anti-icing coating. This invention achieves accurate prediction of the photothermal conversion efficiency of microcapsules and intelligent optimization of composition parameters, obtaining an anti-icing coating with both high photothermal conversion efficiency and rapid self-healing capability.

The invention relates to the field of polymer composite materials, and discloses a heat-conducting thin polymer-based composite material containing one-dimensional aluminum nitride and a modifier thereof and a preparation method of the heat-conducting thin polymer-based composite material, and the composite material is composed of a polymer matrix and a one-dimensional aluminum nitride heat-conducting filler located in the polymer matrix. In the invention, by introducing the one-dimensional aluminum nitride filler and the modifier thereof, the comprehensive performance of the thin polymer-based composite material is remarkably improved, and the one-dimensional aluminum nitride filler forms an efficient heat-conducting network penetrating through the upper and lower surfaces in a polymer matrix by virtue of the one-dimensional morphology and large length-diameter ratio characteristics in a single-crystal or polycrystal state, so that the heat conductivity of the thin polymer-based composite material is improved. The high-temperature side and the low-temperature side of the composite material can be directly bridged to form an efficient heat conduction path, so that the heat resistance is greatly reduced, rapid heat conduction is realized, and the overall heat conduction capability of the material is remarkably improved; meanwhile, the strength, toughness, elasticity and flexibility of the thin polymer-based composite material are greatly improved; the steric hindrance effect of the one-dimensional morphology has the effects of preventing segregation, preventing cracking and inhibiting oil leakage.

The invention relates to the technical field of conductive coatings, and discloses a weather-resistant bio-based conductive coating based on water-based palm wax / shellac and a preparation method thereof, the weather-resistant bio-based conductive coating comprises the following raw materials by mass: 20-30 parts of a natural palm wax nano emulsion, 70-80 parts of a shellac ethanol solution, 1-3 parts of Tween 80, and 30-80 parts of a silver coated copper powder / carbon nanofiber composite material. According to the scheme, the super-hydrophobic barrier is constructed by introducing the water-based palm wax, the moisture absorption rate is reduced, electrochemical corrosion and stress stripping are effectively reduced, and the service life of a base material is prolonged. Meanwhile, lac is added in the scheme, a three-dimensional network structure is formed through crosslinking of the water-based palm wax emulsion and biomass hydroxyl, and the flexibility and moisture resistance of the coating are effectively improved. Specifically, according to the scheme, the water-based palm wax and the shellac are combined and used, so that the weather resistance of the coating is effectively improved, for example, the moisture absorption rate of the coating is reduced to 12% (ASTMD570 standard), and the flexibility of the coating is improved (the elongation at break gt; 50%), the moisture resistance is improved by 3 times (the water vapor permeability lt; 10 g / m < 2 >. Day).

The invention discloses artificial board emulsifying wax, which is prepared from the following raw materials in percentage by mass: 25 to 40 percent of paraffin, 3 to 5 percent of compound emulsifier, 2 to 4 percent of cationic starch, 3 to 7 percent of liquid polybutadiene and 44 to 67 percent of water, the compound emulsifier is a nonionic emulsifier, and the hydrophilic-lipophilic balance value is 9-10. The artificial board emulsifying wax is good in waterproofness and high in strength when applied to artificial boards.

The invention relates to the technical field of haloxylon ammodendron forest rejuvenation in an arid region, in particular to a degenerated haloxylon ammodendron forest stumping, updating and rejuvenating method which comprises the following steps: (1) performing stumping treatment on target plants from late February to mid-March in early spring; (2) applying a composite modifier within 1-3 days after stumping; (3) carrying out periodic moisture regulation and control within 1-2 days after the composite modifier is applied; and (4) after the water regulation is finished, covering the base part of the plant with a mixed covering. The method solves the problem that in the prior art, only rejuvenation of the overground part is emphasized, but the health of the underground root system is neglected, the apparent quality of the haloxylon ammodendron forest can be improved, and the long-term stress resistance and ecological adaptive capacity of plants are remarkably improved.

The present invention relates to light-colored corn wax oxides, to a process for their preparation, and to their use for agricultural or forestry purposes, as additives in plastic processing, in care products, in printing inks and / or in paints, and to saponified or esterified corn wax oxides prepared by saponification or esterification of the said corn wax oxides.

The invention discloses a preparation method and application of a biomass-based low-temperature freeze-thaw resistant material, and belongs to the technical field of green packaging materials.The preparation method comprises the steps that a deep eutectic solvent (DES) is added into sodium alginate (SA) film forming liquid, and blended film forming liquid is obtained; and drying, crosslinking with an ethanol-calcium chloride crosslinking agent, spraying a beewax emulsion on the outer side layer after crosslinking, and volatilizing ethanol to obtain the biomass-based low-temperature freeze-thaw resistant material (SA-DES-WAX). The SA-DES-WAX prepared by the invention can reduce the entering of water molecules in the freezing and thawing cycle process, and meanwhile, an internal strong hydrogen bond system can inhibit the phase change crystallization of the water molecules, so that a biomass-based material capable of keeping the structural stability under the fluctuation of freezing and thawing temperature is obtained.

Provided are a method for measuring the wax concentration of a paint, a coating method, and a method for manufacturing a surface-treated steel sheet, which can measure the wax concentration contained in the paint at a point before applying the coating to the target material to be coated. 【Solution means】A solid content extraction step (step S101) of heating the paint to extract a solid containing wax, a wax extraction step (step S102) of immersing the solid in an organic solvent to obtain a wax extract, an analysis step (step S103) of analyzing the wax extract, and a calculation step (step S104) of calculating the wax concentration from the analysis results, and the heating conditions of the solid content extraction step satisfy the following. T W +20 ≦ T ≦ T W +70 90 ≦ t ≦ 150 T W +130 < T + t < T W +190 T is the heating temperature (°C), T W is the melting point of the wax (°C), and t is the heating time (minutes).

The invention discloses a composite sensing material as well as preparation and application thereof in liquid food spoilage monitoring. The material is of a metal oxide semiconductor / layered silicate mineral and wax integrated structure, and comprises a heterojunction sensitive layer formed by compounding metal oxide semiconductor nanoparticles and layered silicate minerals, and a wax super-hydrophobic protective layer coating the surface of the heterojunction sensitive layer. The preparation method comprises the following steps: dispersing the two raw materials into suspension liquid, coating the suspension liquid on an electrode to form the sensitive layer, and then coating and curing the wax material to form the protective layer. According to the material, the room-temperature gas-sensitive activity is enhanced through the heterojunction, meanwhile, the super-hydrophobic wax layer is used for resisting high humidity and liquid pollution, and function synergy is achieved. The obtained material is high in sensitivity and quick in response to decay mark gases such as ammonia gas and hydrogen sulfide at room temperature, and has excellent environmental interference resistance. The method is simple in process, low in cost, high in environmental adaptability, capable of being integrated in liquid food packaging, capable of achieving real-time in-situ monitoring of the decay process and wide in application prospect.

The coating may be used to hinder agglomeration and dust formation when the seed is treated. An aqueous emulsion suitable for coating seeds and other substrates may comprise: an aqueous fluid; from 5% to 60% by weight, based on total solids, of at least one wax; and 0.1% to 45% by weight, based on the total solids, of at least one abietic acid, which is at least partially neutralized by at least one base. One or more additional additives may also be present in the aqueous emulsion.

The present invention relates to a coating composition that provides high resistance to dirt, friction and polishing, due to the presence of mineral fillers and polymeric dispersions that promote resistance to polishing and meet wet abrasion resistance, said composition comprising: (a) at least one mineral filler selected from nepheline syenite, natural diatomite or a mixture thereof; (b) at least one silica-based matting agent; (c) at least one non-ionic aqueous emulsion selected from paraffin wax and high-density polyethylene wax or a mixture thereof; and (d) at least one additional component selected from the group consisting of solvent, dispersing agent, binding polymer and mixtures thereof. The present invention also relates to the use of the composition for the preparation of a washable matte acrylic paint product and matte acrylic paints containing the composition as claimed herein.

The present invention relates to a micronized wax composition, a method for producing the same, its use in the production of an aqueous formulation, an aqueous formulation containing the micronized wax composition, and a method for producing the aqueous formulation.

Various embodiments of the present invention provide sizing compositions, fiber glass strands, cement boards, and other products incorporating fiber glass. In some embodiments, a sizing composition of the present invention comprises a starch, a nonionic lubricant, a silane comprising at least one amine and at least one aryl or arylene group, and an aminofunctional oligomeric siloxane.

The invention relates to treatments of fibrous substrates for obtaining a durable water repellent effect. The methods described prove to be environmentally friendly and allow the use of renewable starting materials. Specifically, impregnating dispersions, concentrate dispersions, corresponding kit of parts are disclosed, each comprising candelilla wax and a NF-Polymer which is free of an isocyanate-based extender, and free of fluorine, and preferably has a critical surface energy of 20-28mN / m and / or a water repellency index of at least Spray 70. Further provided are methods to prepare concentrate dispersions, impregnating dispersions and treatment of fabrics. The fabrics treated with the inventive impregnating dispersions show unexpected beneficial properties, when compared to known treatments and include improved water repellency, even after multiple washing cycles and for a wide variety of fabrics. The thus obtained fabrics are applicable in a wide variety of applications, including outdoor clothing and protective clothing.

The application relates to the technical field of paint, and particularly discloses a high-viscosity water-based non-cured waterproof paint and a preparation method thereof. The high-viscosity water-based non-cured waterproof paint comprises the following raw materials in parts by weight: emulsified asphalt 30-50 parts, chloroprene latex 15-20 parts, heavy calcium carbonate 20-30 parts, a composite thickening agent 0.5-1.0 parts, a plasticizer 16-20 parts and a polyether modified silicon defoaming agent 0.2-0.4 parts; and the composite thickening agent is a mixture of a polyurethane thickening agent and an alkali swelling thickening agent. The water-based non-cured waterproof paint obtained by the application only has a trace of flow hanging when performing facade spraying, the elongation is only 28-42 mm, the comprehensive performance is high, and the bonding strength on dry and wet base surfaces is the highest and reaches 1.03 MPa and 0.91 MPa respectively, so that the viscosity of the water-based non-cured waterproof paint is improved.

The invention relates to a fluorine-free heat-resistant solid super-hydrophobic coating and a preparation method thereof.The coating comprises a double-layer composite structure formed by depositing core-shell structure microspheres on the surface of a bis (3-aminopropyl) terminated polydimethylsiloxane bonding layer and heating and curing the core-shell structure microspheres, hydrophilic nanoscale silicon dioxide serves as a shell layer of the core-shell structure microspheres, and the core-shell structure microspheres are coated with the hydrophilic nanoscale silicon dioxide. The core-shell structure microspheres are coated and loaded on the surfaces of the micron-sized wax microspheres, the core-shell structure microspheres provide roughness and hydrophobicity, the silicon dioxide coated on the surfaces of the core-shell structure microspheres further increases hardness and roughness, the wax of the wax microspheres reversely coats the shell layer during heating to prepare the coating, and after abrasive paper abrasion, gauze abrasion, sand impact, water impact and heat resistance tests, the coating has good heat resistance. Results show that the coating has excellent hydrophobic stability, durability, self-cleaning performance and self-repairing performance, the preparation method is simple and environmentally friendly, fluorine and VOC emission is avoided, the coating can be suitable for the fields of building outer walls, automobile hub surfaces and the like, and the antifouling rate of the self-cleaned automobile hub surfaces can reach 99% preferably.

The invention relates to a simple and efficient coating agent preparation process. The process is particularly suitable for a preparation process of a wax emulsion type coating agent taking natural wax as a film forming substance. The process adopts a one-step emulsification method and comprises the following steps: heating and mixing fatty acid, natural wax, water and an emulsifier in a closed reaction kettle, adding a neutralizer to adjust the pH value, heating to an emulsification temperature, further heating to 100-120 DEG C to form pressure in a system, effectively reducing or eliminating bubbles generated in the emulsification process, and then cooling and filtering to obtain a stable emulsion product. Compared with a traditional two-step method or a multi-kettle process, the process is simple in equipment, convenient to operate, high in emulsion stability, remarkable in bubble control effect and suitable for large-scale continuous production. The obtained wax emulsion can be widely applied to the fields of fruit and vegetable preservation, seed coating, biological medicine and the like, and has good economic and popularization values.

The application belongs to the technical field of food packaging materials and surface modification, and discloses a full-biobased degradable super-hydrophobic composite coating as well as a preparation method and application thereof. The composite coating comprises a first coating, which is a dry solidified layer of a composite dispersion liquid containing corn protein, inorganic nanoparticles and bacterial cellulose; and a second coating formed on the surface of the first coating, which is a solid film layer after volatilization of a solvent of a hot wax solution. The core component of the application is derived from natural biomass, which fundamentally eliminates the use of traditional paper cup plastic film coating or fluorine-containing chemicals, and realizes full-biobased, rapid degradable and environment-friendly coating. The static water contact angle of the obtained coating is greater than 150°, and the rolling angle is less than 10°, which reaches the super-hydrophobic standard. The simple solution blending and coating process provides a reliable and highly industrialized solution for the development of green paper cup products, and has a wide application prospect.

The invention aims to provide a snowboard wax with a high polymer material coating and a preparation method thereof, the snowboard wax comprises the following raw materials by weight: 10-15 parts of a high polymer material, 80-100 parts of base wax and 1-5 parts of an antioxidant, and the high polymer material is a poly N-isopropylacrylamide grafted acrylic acid-polyvinyl alcohol copolymer. The high polymer material is prepared by the following steps: adding poly (N-isopropylacrylamide) grafted acrylic acid into tetrahydrofuran, adding polyvinyl alcohol, adding azodicyanovaleric acid and triallyl isocyanurate, and controlling the reaction temperature and time to prepare the high polymer material. The snowboard wax with the high polymer material coating can significantly improve the performance of a snowboard, reduce frictional resistance, enhance wear resistance, maintain good coating adhesion and prolong the service life of the snowboard, does not contain fluoride, and is environmentally friendly.

The present disclosure relates to compositions comprising a wax and one or more salts of fatty acids. Exemplary embodiments include from about 20% to about 98% by weight of a wax and from about 2% to about 40% by weight of one or more C4 to C6 fatty acids. 28 Also provided herein are coated agricultural products comprising an agricultural product and a layer disposed on a surface of the agricultural product, wherein the layer comprises a composition described herein.

The present invention relates to a method for coating the inner surface of a substrate with at least one thermoplastic polyurethane coating composition. The present invention also relates to a coated substrate having an inner surface coated with at least one thermoplastic polyurethane coating composition comprising a polyurethane and at least one wax. The present invention also relates to the use of at least one thermoplastic polyurethane coating composition for coating the inner surface of a substrate, wherein the thermoplastic polyurethane coating composition comprises a polyurethane and at least one wax. The thermoplastic polyurethane coating composition comprises a polyurethane and at least one wax. The method limits the amount of organic impurities, such as oligomeric cyclic ethers 2,4,7,9-tetramethyl-5-decyne-4,7-diol (TMDD) and 7,9-di-tert-butyl-1-oxaspiro(4,5)deca-6,9-diene-2,8-dione (oxaspiro), leaching from the coated surface of the substrate when the coated surface of the substrate comes into contact with water.