37results about How to "Excellent hydrophobic function" patented technology

The invention discloses a nano thermal insulation reflective coating additive for an exterior wall. The nano thermal insulation reflective coating additive comprises the main components in weight ratio: 160-250 parts of water, 1-2 parts of defoaming agent, 8-12 parts of dispersing agent, 0.5-2 parts of hydroxyethyl cellulose, 400-500 parts of thermal insulation reflective powder, 5-10 parts of nano TiO2 powder, 5-10 parts of nano SiO2 powder, 5-12 parts of ethylene glycol, 5-10 parts of film-forming additive, 200-300 parts of AC-261P waterborne acrylic emulsion and 1.0-2.0 parts of thickening agent. The nano thermal insulation reflective coating additive is prepared by stirring all the components according to the weight ratio. The coating additive for the exterior wall can be used for realizing the thermal insulation reflection of a color coating for the exterior wall, and furthermore, the energy conservation of a building is realized; water is used as a solvent, so that the nano thermal insulation reflective coating additive has the advantages of environment friendliness, exterior wall hydrophobicity, self-cleaning and the like.

The invention discloses a preparation method for a modified polyamide composite material, which relates to the field of novel polyamide materials. The preparation method comprises the following steps:preparation of maleic anhydride-grafted polyphenyl ether; surface treatment of graphene oxide; preparation of modified graphene oxide; preparation of polyphenyl ether-grafted graphene oxide; and preparation of modified polyamide composite material. According to the preparation method disclosed by the invention, by grafting polyphenyl ether onto the graphene oxide to modify polyamide, the grapheneoxide grafted onto the polyphenyl ether is highly compatible with the polyamide, the binding force is high, and the tensile strength and mechanical impact resistance of the composite material can beeffectively increased, and moreover, the water absorption and friction coefficient of the composite material can be effectively decreased.

The invention provides environment-friendly anticorrosive paint and a preparation method thereof. The environment-friendly anticorrosive paint comprises a main agent and a curing agent. The main agent is prepared from, by weight of 100 parts, 39-50 parts of low-viscosity solvent-free epoxy resin, 4-8 parts of diluents, 5-15 parts of toughening resin, 0.5-15 parts of toner, 10-40 parts of filler, 5-15 parts of low-viscosity epoxy ester resin and 0.5-1.5 parts of a thixotropic agent. The curing agent is modified amine resin.

The invention provides a hydrophobic material with a surface modified by Fe3O4 nanoflower. A preparation method comprises the following steps of: soaking a cleaned pure iron sheet in a nitric acid solution with concentration of 0.5-2.5mol / L, and enabling reaction at 30-50 DEG C for 5-15 minutes; slowly introducing ammonia gas into the reaction system in the condition of external magnetic field so that the acid solution of the system gradually becomes alkaline; heating the system to 230-285 DEG C, and enabling reaction for 30-90 minutes to generate black brown Fe3O4 particles on the iron sheet; cooling, washing and drying to obtain a hydrophobic material with a surface modified by Fe3O4 nanoflower, wherein the contact angle can reach 136.23-146.12 degrees according to measurement, and good hydrophobicity is realized; and performing heat treatment of the hydrophobic material at 150-200 DEG C to obtain a hydrophobic material modified by gamma-Fe2O3 nanoflower and having stable performance and excellent hydrophobicity. The hydrophobic material provided by the invention has a broad application prospect in the field of antiseptic and self-cleaning materials.

The invention discloses a preparation method of reflective insulation decorative mortar. The preparation method comprises the following steps: selecting white cement, high-strength gypsum, infrared colored sand, infrared titanium dioxide, nano rare earth, silica fume, sepiolite powder, renewable latex powder, a water-retaining agent, starch ether, a thixotropic agent, an organic silicon water-increasing agent, a water reducing agent, a dispersing agent, a retarder and a proper amount of water according to the dosage percentage; and then performing stirring, mixing, inspecting and packaging insequence. The reflective insulation decorative mortar has a reflective thermal insulation function, a polymer high polymer material and a plurality of infrared reflective thermal insulation functionalmaterials are adopted, the reflective insulation decorative mortar has the characteristics of decorative mortar, and the sunlight reflectance of the product is 0.71 or above; near infrared rays account for 80% or above, heat absorption of the outer wall facing layer is effectively reduced, and the wall temperature is reduced.

A functional clothing for alleviating metabolic syndromes and manufacturing method thereof. The raw material of the functional clothing comprises primary functional layer fabric (C), and can further comprise secondary functional layer fabric (B). The inside surface of the primary functional layer fabric (C) is obtained through processing under a preset first process condition with a preset first coagent; the inside surface of the secondary functional layer fabric (B) is obtained through processing under a preset second process condition with a preset second coagent. The first coagent gives the inside surface of the primary functional layer fabric (C) hydrophilicity, warmth and breathability functions; the second coagent enables the inside surface of the secondary functional layer fabric (B) to have L-carnitine adhere. The functional clothing can directly contact skin, and the outside surface thereof has good hydrophobicity. By control of the functions of good hydrophilicity, warmth and excellent breathability of the inside surface thereof, and by utilizing the temperature and humidity environment of the skin surface to establish a drug transdermal release system to facilitate transdermal absorption of the micromolecular hydrophilic drug L-carnitine, the functional clothing worn by a user for a long time can alleviate secretion of insulin and obesity related factors, further alleviating metabolic syndromes. The method of manufacturing the functional clothing is easy of operation and has a low cost.

The invention relates to the technical field of building materials and particularly relates to super-hydrophobic artificial marble which is composed of following components, by weight: 100 parts of unsaturated polyester resin, 0.5-2 parts of a peroxide-type initiator, 0.1-2 parts of an accelerant, 5-30 parts of vinyl-type resin diluent, 5-30 parts of polyvinyl-type resin assistant crosslinker, 100-500 parts of ore slag micro powder, 10-30 parts of a flame retardant, and 3-15 parts of polyfluoro-modified bisphenol A epoxy acrylate polymer. In the invention, the polyfluoro-modified bisphenol A epoxy acrylate polymer, which has a super-hydrophobic function, is employed as a hydrophobic additive to prepare the artificial marble, so that the artificial marble is excellent in hydrophobic performance. A contact angle between the surface of the super-hydrophobic artificial marble and water is 150-170 degrees so that the surface of the super-hydrophobic artificial marble has an excellent self-cleaning function. In addition, the marble in deep color series is high in strength, is good in waterproof performance and is strong in corrosion resistance.

The invention relates to a preparation method of a cast aluminum alloy film coat, which is characterized by cleaning a cast aluminum alloy component firstly, performing chromate oxidation treatment secondly, and then preparing a film sealing coat of fluorine containing acrylicester on a chromate oxide film. Construction methods such as brushing or spraying is used for the invention, the methods are flexible and simple and has high maneuverability; the invention can be applied in the protective treatment for cast aluminum alloy of ZL102, ZL104, ZL107, ZL112, ZL114 and the like, and is particularly suitable for treatment of the cast aluminum alloy component used in the ocean environment; and the invention is also suitable for the protective treatment of other aluminum alloy materials or components, such as treatment of duralumin, super duralumin, wrought aluminum and rust-proof aluminum alloy.

The invention relates to a preparation method for constructing a super-hydrophobic layer on the surface of bamboo / wood by using geothermal water. Firstly, the lignin on the surface of bamboo / wood is treated with NaOH solution, so that the hydroxyl group is exposed on the surface as much as possible, and then it is immersed in methacrylic acid to shrink React in a glyceride solution, and finally deposit calcium carbonate crystals on the surface of bamboo and wood by hydrothermal method, and combine the low surface energy material polydimethylsiloxane to construct an aragonite calcium carbonate surface layer with hydrophobic function on the surface of bamboo / wood. Advantages: 1) NaOH solution is used to remove the lignin components on the surface of bamboo / wood, so that the hydroxyl groups in bamboo / wood are exposed on the surface as much as possible, which is beneficial to the next reaction. 2) Using GMA as the coupling agent, the epoxy group reacts with the hydroxyl group to fix it on the bamboo / wood surface, and the carboxyl group reacts with the Ca 2+ Formation of complexes, by regulating the carboxyl group and Ca 2+ The complexes formed control the growth crystal form and morphology of calcium carbonate. 3) Environmental protection, good biocompatibility, low production cost, and good hydrophobicity.