68results about How to "No complicated process" patented technology

The invention discloses wet-on-wet construction matching paint and a preparation method thereof. Waterborne epoxy anticorrosive primer and waterborne double-component polyurethane finish paint are combined, a wet-on-wet construction technology can be realized while properties of surface appearance, glossiness, hardness, salt mist property and the like of a paint film are met, so that the production efficiency is greatly improved, energy consumption is reduced, and the requirements for energy saving and emission reduction are met. Construction site tests prove that the waterborne double-component polyurethane finish paint can be sprayed after the waterborne epoxy anticorrosive primer is sprayed and dried for 10 min (the thickness of a dry film is about 30-50 mu m), the finish paint can be baked at the temperature of 80 DEG C for 30 min after being air-dried for 10-15 min, and then, the product can be assembled and packaged offline.

The invention discloses a water-coated sand coating and preparation method. The water-coated sand coating is prepared from 20-25 parts of a protective adhesive solution, 20-25 parts of a color-adjusted basis coating, 10-15 parts of continuous phase emulsion and 30-40 parts of color sand. According to the water-coated sand coating, raw materials and the raw material ratio in the protective adhesivesolution are adjusted, and thus the prepared protective adhesive solution has high steric hindrance and viscosity stability; in the color-adjusted basis coating, associated cellulose is selected, thus the cellulose is associated with the emulsion to form a mesh structure, the strength of the basis coating is improved, and thus the coating can adapt to higher spray pressure; an anionic wetting agent with the high performance is selected to enhance the wettability between color particles and other aggregates and the emulsion, thus the color particles and the other aggregates adhere to the meshstructure in a wrapped mode, and the situation that color points are destroyed in the high pressure spraying environment is prevented; and according to the water-coated sand coating, a coating close to the texture of rough surface stone can be obtained through one step spraying.

The invention belongs to the field of nonlinear optical materials, and particularly discloses a hydrogel-based solid-state up-conversion luminescence material and a preparation method thereof.The material can be directly used in atmospheric environment and has quite high stability.The method includes: under excitation of low-power-density green light (532 nm, 60 mW.cm-2), enabling up-conversion hydrogel on a PdTPP/DPA system to obtain blue up-conversion luminescence.When temperature is increased, up-conversion efficiency (phiUC)of the material is in positive correlation with temperature and is up to 12%.A convenient and quick idea is provided for preparing up-conversion luminescence materials, and deoxidization is not needed, so that instability in organic solvents, complexity of organic synthesis methods and unfavorable effect on ecological environment protection are avoided usually, and actual application value is increased greatly.The material has potential application value in photoelectrochemical hydrogen generation and in the fields of solar photovoltaic field, solar photocatalysis, environment photochemical technology and temperature sensors.

A nigre removal process for vegetable oil comprises the steps of introducing nigre-containing vegetable oil into a hargil filter tank (52) forming a filter cake layer (520), discharging the vegetable oil into a nigre removal oil tank after the nigre removal treatment, introducing the vegetable oil with the nigre removed into a hargil mixed reaction tank for decoloring, introducing the mixture of the hargil and the vegetable oil into a hargil filter tank (51), keeping the hargil into the hargil filter tank (51) to form a filter cake layer (510), discharging the filtered vegetable oil into a decoloring oil tank, introducing and switching the nigre-containing vegetable oil into the hargil filter tank (51) forming the filter cake layer (510) when the pressure in the hargil filter tank (52) reaches the preset threshold, and discharging the vegetable oil into the nigre removal oil tank after the nigre removal treatment. The invention further discloses nigre removal equipment and a vegetable oil production process. The nigre removal process adopts a dry method to remove nigre, so that a large amount of water resource is saved, the process of wastewater treatment is omitted, and the requirements of zero pollution and zero emission are basically met.

The invention discloses a two-component polyurethane finish paint and a preparation method thereof. The two-component polyurethane finish paint comprises a component A and a component B, wherein the component A comprises: 35-50% of a water-based hydroxy acrylic acid dispersion, 5-20% of a water-based self-crosslinking polyurethane dispersion, 5-15% of casein emulsion, 0.5-1.5% of a wetting dispersant, 0.1-0.5% of an antifoaming agent, 5-23% of a pigment, 0.5-1% of a leveling agent, 0.1-0.3% of a base material wetting agent, 0.1-0.5% of a thickening agent and 10-15% of deionized water. The component B is prepared from a waterborne polycarbodiimide curing agent, and the mass ratio of the component A to the component B is (10-20):1. The two-component polyurethane finish paint provided by theinvention has the advantages of high drying speed, high paint film hardness, good water resistance and wear resistance, extremely low VOC content, long construction validity period of the paint, convenience in storage and wide market prospect.

The invention provides a medium and a method for protecting a triplet excited state of a photosensitizer by photochemically removing oxygen and application. The medium is polyvinylpyrrolidone. The method comprises the steps of mixing PVP, the photosensitizer and a solvent, standing to form gel, and irradiating the gel by virtue of a laser method. According to the method, the situation that phosphorescence is quenched by oxygen in air is prevented; and the method is applied to the fields of observation and test experiments for photophysical and photochemical processes, the conversion of photoetching or triplet state-triplet state annihilation photons and the like.

The invention provides a method for removing oxygen through photochemistry to protect triplet excited state of a photosensitizer and application thereof. The method comprises the following steps: adding the photosensitizer into a solvent, and irradiating a solvent containing the photosensitizer by using exciting light. Through the method, the solvent does not need to be subjected to oxygen removalmeasures such as bubbling through inert gas and the like; the oxygen in the solvent can be removed by directly irradiating the solvent containing the photosensitizer under the air condition; phosphorous light is gradually intensified in the solvent; the invention also relates to the application of the method to photoetching through gel and implementation of triplet state-triplet state annihilation photon up-conversion under the air condition.

The invention discloses a two-component elastic coating and a preparation method thereof. The two-component elastic coating comprises a component A and a component B, wherein the component A comprises60-70 parts of a waterborne polyurethane dispersion, 1.5-2.5 parts of a lignocellulose/expandable graphite composite material, 1-8 parts of a feel aid, 8-10 parts of organic silicon ketone powder, 0.05-0.5 part of nano-silver, 0.5-1 part of negative ion powder, 3-6 parts of a flame retardant, 0.2-1 part of fumed silica, 0.3-0.5 part of a pH adjuster, 1-3 parts of a base material wetting agent, 5-10 parts of a pigment, 2-3 parts of a defoaming agent, 5-10 parts of a dispersant, 3-7 parts of a film-forming aid, 0.2-0.8 part of a thickener, and 20-30 parts of water; and the component B comprises20-25 parts of a waterborne isocyanate curing agent, and 10-15 parts of a co-solvent. The provided two-component elastic coating has multiple advantages such as high elasticity, good stain resistance, and good scratch resistance, and has relatively high practical value.

The invention discloses a two-component exterior wall coating and a preparation method thereof. The two-component exterior wall coating comprises a component A and a component B, wherein the componentA comprises 10-15% of low hydroxyl acrylic acid dispersion, 15-20% of modified polyurethane dispersion, 0.2-0.3% of a pH regulator, 0.8-1% of a first environment-friendly solvent, 1.5-1.8% of a dispersant, 0.1-0.2% of an anti-settling agent, 0.8-1% of a wetting leveling agent, 0.4-0.6% of a thickening agent, 0.6-0.7% of a defoaming agent, 2-20% of titanium dioxide, 30-45% of heavy calcium and 15-18% of deionized water. The component B comprises 85-90% of a water-based isocyanate curing agent and 10-15% of a second environment-friendly solvent. The two-component exterior wall coating providedby the invention has the advantages of high hardness, good aging resistance, strong hydrophobicity, excellent acid resistance and alkali resistance, thick coating without blistering and prickly heat,and has wide market prospect.

The invention provides a pearl powder polyamino acid composite bone repair material with osteogenic activity, and a preparation method and application thereof. The composite bone repair material is made of a pearl powder and an amino acid through in situ polymerization, wherein the amino acid is composed of a gamma-amino acid and a non-gamma-amino acid, and the non-gamma-amino acid is an alpha-amino acid and/or an epsilon-amino acid. The composite bone repair material of the invention has excellent mechanical properties and adjustable degradation performance, is convenient for meeting different needs, does not cause damage to tissues after degradation, has high osteogenic activity, has good biocompatibility and biological activity, and can be used as an excellent, non-toxic and novel biomedical material. When the amino acid is a specific amino acid of the invention, the mechanical strength of the obtained composite bone repair material is significantly improved, the strength of human natural cortical bone is met, and the composite bone repair material can be used as a bone repair material with excellent performance. In addition, the preparation method is simple, has no complicatedprocess, is easy to operate, can realize industrialized production, and has excellent application prospects.

The invention discloses a water-based reflective thermal insulation coating and a preparation method thereof, the reflective thermal insulation coating selects carbon nanotube modified epoxy resin andorganosilicon modified fluorocarbon emulsion for compounding as a film forming substance, the flexibility and frictional wear performance of a paint film are significantly enhanced, and the adhesiveforce of the paint film is improved; silicon-aluminum coated modified nano titanium dioxide is selectively added, so that the paint film is endowed with extremely high weather resistance and reflective heat-insulating property; high-hardness particles such as nano ytterbium oxide, kaolin and ground calcium carbonate are matched, so that the high-hardness particles are embedded in the compact paintfilm formed by film forming matters when the coating forms a film, and when the surface of the paint film is rubbed by the outside, the high-hardness particles bear most of friction force, so that the abrasion effect of the surface of the paint film is reduced, and the reflective heat insulation property, the abrasion resistance and the washing resistance of the paint film are comprehensively improved. According to the reflective thermal insulation coating provided by the invention, the thermal insulation temperature difference reaches 17-20 DEG C, the reflectivity reaches 90% or above, and the reflective thermal insulation coating has a relatively high practical value.

The invention relates to a preparation method of manganese series water quenching bainitic steel, which belongs to the technical field of alloy steel preparation. First, the steel is smelted by a conventional steel smelting process, teemed or continuously cast and produced; the weight percentage of all components in the steel is as follows: C: 0.05 percent to 0.42 percent, Mn: 1.80 percent to 3.00 percent, Si: 0.20 percent to 1.80 percent, Cr: 0 percent to 1.60 percent, and the rest is Fe; after forge rolling, the steel is directly cooled by water or oil; and then, the steel is heated to 200 DEG C to 650 DEG C, and tempered after the temperature is preserved for 1h to 3h. In the preparation method, the alloying of an appropriate amount of Mn, Si, Cr and other elements changes the continuous cooling conversion curve of the steel grade, improves the hardenability characteristic of the steel and obtains components with good obdurability. The product produced by the preparation method has excellent performance, simple process and low cost.

The invention discloses modified epoxy ester resin, a coating composition and a preparation method. Raw materials of the modified epoxy ester resin comprise: 190 to 210 parts of linoleic acid, 100 to120 parts of phthalic anhydride, 12.3 to 14.3 parts of refined adipic acid, 35-45 parts of rosin, 43.4 to 45.4 parts of benzoic acid, 5.7 to 7.7 parts of maleic anhydride, 30.6 to 40.6 parts of neopentyl glycol, 79-99 parts of trimethylolpropane, 40.5-48.5 parts of pentaerythritol, 16.8-18.8 parts of polyether polyol, 40-50 parts of epoxy resin, 60-64 parts of trimellitic anhydride, 0.1-0.5 part of catalyst, 200-260 parts of butyl cellosolve and 50-90 parts of isocyanate. The modified epoxy ester resin provided by the invention has three functions of alkyd, epoxy and polyurethane, and the performance index is obviously superior to that of a traditional product.

The invention discloses a primer-topcoat waterborne coating and a preparation method thereof. The primer-topcoat waterborne coating is prepared from components as follows: 30%-40% of epoxy ester resin, 10%-20% of epoxy modified acrylic resin, 0.3%-0.4% of a defoaming agent, 0.2%-0.4% of an organic amine neutralizer, 2%-3% of a dispersing agent, 30%-40% of pigment and filler, 0.5%-1% of a base material wetting agent, 1%-2% of a thickening agent, 0.5%-1% of an anti-settling agent, 0-0.5% of a rust-proof assistant, 1%-3% of an ultraviolet light absorber, 3%-5% of a cosolvent, 0.3%-0.6% of a drying catalyst and 7%-10% of deionized water. The prepared primer-topcoat waterborne coating is high in drying speed, high in hardness and good in adhesion and has good corrosion resistance, the system contains no heavy metals and is low in VOC content, and the primer-topcoat waterborne coating is particularly suitable for axle surface decoration protection, meets the demand of a client for corrosionresistance of a base material and meets the demand of the client for base material surface decoration.

The invention discloses a material for realizing relaxation-normal ferroelectric phase change through doping, and a method thereof. The chemical formula of the material is (1-x)SBN-xNN (x = 0-0.8). Na<+> in the material occupies an A-site lattice position which is not occupied by Sr<2+> and Ba<2+> in a tungsten bronze structure, when x is equal to 0, the material is of a non-filled tungsten bronze structure, when x is equal to 0.4, the material is of a filled tungsten bronze structure, and when x is greater than 0.4, the material has a tungsten bronze and perovskite two-phase coexisting composite structure. The method comprises the following steps: synthesizing single-phase SBN powder by adopting a two-step solid-phase reaction method, uniformly mixing the single-phase SBN powder with Na2CO3 and Nb2O5 powder, and sintering at high temperature to obtain the corresponding ceramic material. By doping NN, the SBN crystal structure is converted from a non-full type to a full type, relaxation-normal ferroelectric phase change occurs when x is equal to 0.4, and relaxation-normal ferroelectric phase change which is difficult to realize under general conditions is realized.

The invention discloses an orange peel antiskid coating and a preparation method thereof. The orange peel antiskid coating is prepared from the components: 15-30% of organic fluorine modified epoxy resin, 4-7% of phenolic resin, 1-5% of an active diluents, 0.2-0.6% of a dispersant, 1.0-2.0% of bentonite, 0.5-1.5% of fumed silica, 1.0-5.0% of titanium dioxide, 15-20% of coarse whiting, 20-30% of dolomite powder, 5-10% of talcum powder, 0.1-0.5% of a defoamer, 0.1-0.5% of a base material wetting agent, 0.1-0.3% of an anti oil leveling agent and 5-15% of a curing agent. According to the providedorange peel antiskid coating, the hardness is high, the wear resistance and weather resistance are excellent, at the same time, the dried paint film surface further has the orange peel texture effectwith very obvious stereoscopic sense, the orange peel is fine and clear, the distribution is uniform, the antiskid performance of the coating can be improved, and the orange peel antiskid coating is especially suitable for being using as the floor coating.

The invention discloses a high temperature resistant cathode electrophoretic coating and a preparation method thereof. The coating is prepared from color paste, emulsion and deionized water in a massratio of 1:(3-5):(4-6), wherein the color paste is prepared from the following components in parts by mass: 20-40 parts of acrylic modified cationic organic silicon resin, 3-10 parts of environment-friendly co-solvent, 0.5-5 parts of a neutralizing agent, 0.05-0.8 part of surfactant, 30-45 parts of deionized water and 25-35 parts of color filler; and the emulsion is prepared from the following components in parts by mass: 25-35 parts of acrylic modified cationic organic silicon resin, 1-5 parts of an emulsifying agent, 0.5-5 parts of a neutralizing agent and 35-55 parts of deionized water. Thehigh temperature resistant cathode electrophoretic coating has good high temperature resistance, high throwing power, high hardness, strong adhesive force, excellent chemical corrosion resistance, has low content of VOC, is safe and environment-friendly, and has a relatively high practical value.