60results about How to "Excellent physical shielding effect" patented technology

The invention discloses a preparation method of an anticorrosion epoxy resin embroidered coating containing coupled, dispersed and modified pigment fillings. The preparation method is characterized bycomprising the following steps: mixing talcum powder, iron oxide red, zinc phosphate and aluminum triphosphate, adding a dispersing agent, a titanate coupling agent and deionized water, dispersing, and grinding to obtain pigment slurry; adding a mixed solvent and KH550 into a graphene nanosheet, and carrying out uniform ultrasonic treatment, so as to obtain coupled and modified graphene nanosheetslurry; uniformly mixing KH560, ethyl orthosilicate and isopropanol, so as to obtain a component A; mixing isopropanol with deionized water, dropwise adding the mixed solution into the component A, and carrying out hydrolysis and polycondensation, so as to obtain hybridized silicon sol; dropwise adding diethanol amine and polyether amine into epoxy resin for reaction, dropwise adding glacial acetic acid for reaction, adding deionized water, stirring for emulsification so as to obtain an epoxy resin emulsion, mixing the epoxy resin emulsion with the obtained materials in foresaid steps, addinga polyurethane flatting agent, a film forming aid and a defoaming agent, uniformly mixing, and mechanically dispersing, so as to obtain the coating.

The invention discloses a graphene modified steel structure water-based anti-corrosive paint and a preparation method thereof. The anti-corrosive paint is prepared from the components in percentage byweight: 10 to 20 percent of deionized water, 5 to 10 percent of graphene dispersion liquid, 30 to 40 percent of anionic acrylic emulsion, 5 to 13 percent of pigment, 20 to 30 percent of filler, 0.1 to 0.8 percent of wetting dispersant, 0.1 to 0.5 percent of defoaming agent, 0.2 to 0.5 percent of pH modifier, 0.3 to 0.6 percent of thickening agent, 0.2 to 0.5 percent of SiO2 hollow microspheres, 0.1 to 0.4 percent of RS preservative, and 2 to 5 percent of coalescing agents. The sum of the weight percent contents of the components in the graphene modified steel structure water-based anti-corrosive paint is 100 percent. Due to the interaction and the space effect among the graphene, the SiO2 hollow microspheres, the pigment and the filler, the defects of poor water fastness, weather fastnessand easiness of flash rust of a traditional water-based acrylic anti-corrosive paint are overcome, the hardness of a film is ensured on the basis of flexibility, and the paint has excellent storage and anti-corrosive performances.

The invention discloses zinc-alkene anticorrosive paint for steel structure anti-corrosion. The zinc-alkene anticorrosive paint is prepared from, by weight, 10-40% of modified epoxide resin, 20-50% offunctional filler, 0.01-28% of zinc powder, 0.2-3% of graphene, 3-15% of surfactant, 5-25% of xylene and 5-25% of normal butanol. The waterproofness and fast electrical conductivity of nanometer two-dimensional flaky graphene are utilized to apply the graphene to the field of anti-corrosion of railway line bridge equipment steel structure workpieces. Because the used anticorrosive mechanism of the paint is good electrical conductivity of the graphene and lap joint characteristics of the flaky zinc powder, a good conductive layered network structure is formed on the coating surface, the immersion of a corrosive medium is hindered, the physical shielding effect is good, the steel structure workpieces are effectively protected, and the corrosion resistance of the surface of the steel structure workpieces is improved. In addition, the graphene is used to replace parts of zinc powder, not only does the coating have an excellent cathodic protection effect, but also the use amount of the zinc powder is reduced during the preparation of the paint, and the damage and pollution of zinc vapor to the human body are reduced during the processing of later welding.

The invention provides a graphene modified pure polyester powdery coating. The graphene modified pure polyester powdery coating comprises matrix resin, a curing agent, pigment and filler, a degassingagent, a leveling agent, an antioxidant and graphene. By the graphene modified pure polyester powdery coating, the charging property of powdery particles is enhanced, during electrostatic spraying, the powder penetrating power on a traditional powdery coating and the adhesiveness to the surface of a workpiece are greatly improved, a coated film with good quality is obtained favorably, furthermore,dust pollution during construction is also relieved, and the using cost is reduced to a certain degree.

The invention relates to an environment-friendly high polymer uvioresistant coating and a preparing method thereof. The coating comprises polypropionate emulsion, a coalescing agent, an anti-foaming agent, a dispersing agent and the like. The environment-friendly water-based nanometer anti-ageing building coating is low in cost, little in pollution, little in harm to the human body, good in rub-off resistance, high in ageing resistance, capable of being coated through scraping, rolling and spraying, and suitable for application of a building. The added polyurethane elastomer has superior abrasion resisting and oil resisting performance, and belongs to the polarity polymer capable of being organically combined with polypropylene, and the mechanical performance of the polypropylene can be effectively improved. The added fluororubber has the characteristics of high temperature resisting and oil resisting, and other added filler can have other physical performance and processing performance. The laminated double hydroxy composite metal hydroxide forms a multi-level superposed laminated structure through a laminated subject double metal hydroxide laminate and an interlamination object negative ions, a good physical shielding function is achieved on ultraviolet rays, and the uvioresistant ageing resistance can be effectively improved.

The invention discloses an aluminum-zinc phosphate coating and a use method thereof. The coating is prepared from the following components in parts by weight: 10 to 50 parts of Al(H2PO4)3, 1 to 20 parts of Zn(H2PO4)3, 1 to 10 parts of TEOS, 60 to 90 parts of H2O and 10 to 70 parts of Al2O3 powder. The modified aluminum-zinc phosphate coating is prepared on the surface of a cast aluminum alloy through a steam-assisted heat treatment method. According to the invention, Al(H2PO4)3 and Zn(H2PO4)3 are used as composite binders, so the reaction activity of the coating and a cast aluminum matrix is improved; as the TEOS is added as a modifier, the compatibility of nano-SiO2 and the composite binders can be improved, and the crosslinking density of the coating is improved; and the prepared modified aluminum zinc phosphate coating is uniform and flat, is tightly combined with the matrix, mainly comprises Zn3(PO4)2, AlPO4, AlPO4. 2H2O and SiO2, and can remarkably improve the corrosion resistance of an aluminum alloy casting.

The invention discloses a preparation method of epoxy zincene heavy-duty anti-corrosion paint, which belongs to the technical field of paint preparation. In the present invention, graphene and zinc powder are first ground and compounded to obtain graphene-zinc composite powder, and the surface of graphene-zinc composite powder is modified by toluene diisocyanate, which can effectively prevent graphene and zinc powder from being deposited on the resin The reunion in the medium greatly improves the dispersibility of the composite powder in the resin, thereby fully exerting the anticorrosion effect of the graphene composite powder and enhancing the anticorrosion of the epoxy resin coating. Component A is obtained after mixing ethylene-zinc composite powder and other components, and the curing agent is used as component B. After mixing, epoxy zinc ene heavy-duty anti-corrosion coating is obtained. The coating has good flexibility, good anti-corrosion performance, and the salt spray resistance time is long. Reach more than 3000h.

The invention belongs to the technical field of anticorrosive coatings, and relates to an anticorrosive inner coating film for an inner layer of a steel drum. The anticorrosive inner coating film mainly comprises the following components in percentage by weight: 60-70% of modified epoxy resin emulsion; 1-5% of a coalescing agent; 3-15% of anticorrosive pigment and filler; 2-8% of a surfactant; 4-10% of a coupling agent; 10-15% of a curing agent; 0.1-2% of a defoaming agent; 0.1-2% of a leveling agent; 0.1%-0.6% of a corrosion inhibitor; and 10-50% of water. The modified epoxy resin emulsion is adopted, so that a formed coating plays a role in physically shielding various corrosive media; the corrosion inhibitor is added, so that the corrosion rate of steel is greatly reduced; and a pigment and filler are modified to form the anticorrosive pigment and filler, the dispersity of the pigment and filler in epoxy resin is improved, and a phase interface between the pigment and filler and the resin is eliminated, so that the shielding property and the corrosion resistance of a colored paint film are improved on the premise of ensuring high hardness and high adhesive force of the paint.

The invention relates to high-temperature-resistant thermal isolation and heat insulation paint and a manufacturing method thereof. The paint is prepared from the following composition ingredients in parts by weight: 10 to 20 parts of lithium sodium silicate composite solution, 5 to 20 parts of water-borne phenolic resin, 30 to 50 parts of ceramic hollow micro beads, 10 to 30 parts of short ceramic fiber, 1 to 6 parts of bentonite, 1 to 8 parts of flake aluminum powder, 0.5 to 3 parts of preservatives, 0.5 to 3 parts of stabilizing agents, 0.5 to 3 parts of aqueous dispersants, 0.5 to 5 parts of coupling agents, 0.2 to 0.8 part of carboxymethylcellulose and 0.1 to 3 parts of pH regulators. When the paint is used under the conditions of the temperature resistant amplitude being -80 to 1300 DEG C and the temperature being 25 DEG C, the coating heat conduction coefficient is only 0.03 W / m*k; the curing time is shortened by the paint; the coating glazing temperature is reduced, so that the temperature is lowered from the conventional temperature of 800 DEG C to 600 DEG C; the vacuum structure compactness of a coating film is improved; the radiation heat and the heat conduction of infrared rays can be effectively inhibited and shielded.