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174 results about "Trifluoro-acetylacetone" patented technology

1,1,1-Trifluoro-2,4-penta nedione is known as trifluoro-acetylacetone (TFAA). Molecular structure of 1,1,1-trifluoro-pentane-2,4-dione has been investigated by Density Functional Theory (DFT) calculations.

High-conductivity polyimide/carbon material/silver three-phase composite film and preparing method thereof

The invention relates to a high-conductivity polyimide/carbon material/silver three-phase composite film and a preparing method thereof, and belongs to the field of electric-conduction and electromagnetic shielding composite films. The preparing method of the polyimide composite film includes the steps that polyamide salt formed by dicarboxylic anhydride and diamine in a condensation polymerization mode serves as a precursor, carbon materials in a certain proportion and silver with silver trifluoroacetylacetone as a precursor are doped into the polyamide salt, and high-temperature imidization is carried out to obtain the film. The mass percent of the silver ranges from 0% to 20%, and the mass percent of the carbon materials ranges from 0% to 30%. The molecular proportion of dicarboxylic anhydride monomers to diamine monomers ranges from 1-1.2:1. The polyimide composite film prepared with the method has the advantages that the resistance and the electromagnetic shielding effectiveness are adjustable, the preparing technology is simple, density is low, conductivity is high, flexibility is good, and the corrosion resistance is achieved, and therefore the polyimide composite film is widely suitable for the electronic fields such as microwave absorption and EMI shielding and the photoelectron field.
Owner:HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH

Fluororesin oil paint with weather resistance, temperature resistance and color retention

The invention relates to oil paint and particularly relates to fluororesin oil paint with weather resistance, temperature resistance and color retention. The fluororesin oil paint comprises the following materials in parts by weight: 20-24 parts of fluororesin, 12-15 parts of thermoplastic acrylic resin, 2-3 parts of sodium diacetate, 1-2 parts of ethylene glycol bis-glycidyl ether, 3-4 parts of isocyanuric acid tri-glycidyl ether, 10-12 parts of tripropylene glycol diacryate, 1-2 parts of europium trifluoroacetylacetone, 25-30 parts of urethane acrylate, 2-3 parts of polyacrylamide, 1-2 parts of ferrocene, 2-3 parts of isocyanate, 5-8 parts of epoxidized soybean oil, 1-2 parts of zinc naphthenate, 3-4 parts of diaminodiphenyl-methane, 5-6 parts of additive, 10-12 parts of dimethylbenzene and 10-12 parts of butyl acetate. The fluororesin oil paint has the advantages that the adhesive force of a paint film is strong, the color is bright and full, the color retention is lasting and yellowing resistance is achieved, also has the advantages of weather resistance, ageing resistance, temperature change resistance, anti-corrosion and anti-rusting performances and brushing resistance and the like and can be widely applied in protective decoration of articles in various environments.
Owner:BENGBU ZHENGYUAN ELECTRONICS TECH

Preparation method of anti-fouling waterproof coating adopting modified acrylic acid

InactiveCN104610833AImprove stain resistanceStrong ability to withstand high and low temperature differenceAntifouling/underwater paintsPaints with biocidesMicrosphereSurface-active agents
The invention discloses a preparation method of an anti-fouling waterproof coating adopting modified acrylic acid. Raw materials comprise acrylate monomer, fluororesin monomer, nano-silver, nano-TiO2, nano Na-montmorillonite, nano sepiolite powder, a cationic surface active agent, an anionic surface active agent, rosin water, closed cell perlite, heavy calcium carbonate powder, ceramic microspheres, attapulgite, calcium naphthenate, cobalt trifluoroacetylacetone, a dispersing agent, a coalescent agent, a defoaming agent and deionized water. The preparation method comprises steps as follows: appropriate fluororesin monomer is used for modifying acrylate resin; functional nanoparticles are uniformly dispersed in a modified emulsion; the anti-fouling waterproof coating is prepared. According to the coating, a fluororesin modified acrylate emulsion is used, meanwhile, the cationic surface active agent and the anionic surface active agent are uniformly dispersed in the coating and are not agglomerated after a long time, and the obtained coating has good impervious, watertight and antifouling properties and good weather fastness, and is green and environment-friendly.
Owner:扬州豪扬新型建筑材料有限公司

Preparation method for solid catalyst for ozone heterogeneous oxidization

The invention relates to a preparation method for a solid catalyst for ozone heterogeneous oxidization and belongs to the technical field of an environment-friendly and chemical catalyst. The preparation method comprises the following steps: taking a perlite, albite, montmorillonite, sylvine, illite and ulexite porous material as a carrier; modifying the carrier by broaching with lithium hypochlorite and bis(acetylacetone) beryllium, and then adding surfactant nonylphenol diquaternary ammonium salt and performing surface activating treatment under the effect of ultrasonic wave; performing hydrothermal reaction on an ultrasonic surface activated carrier, a compound mineralizer including borax and potassium sulphate, catalytic activated assistant precursors, including 1,1,1-trifluoroacetylacetone neodymium, terbium acetate hydrate, holmium oxalate hydrate and tri[N,N-bi(trimethyl silyl)amide] erbium rare-earth metal organic compound and catalytic active core component precursors, including common transition metal organic compound cobalt gluconate, nickel citrate, ammonium zirconium carbonate and precious metal chemical complex tetraammine dichloropalladium in a hydrothermal reaction kettle under the effect of octadecyl dimethyl hydroxypropyl ammonium chloride used as an emulsifier; drying and dewatering the reaction product; burning in a muffle furnace under a certain temperature, thereby acquiring the solid catalyst for ozone heterogeneous oxidization.
Owner:SICHUAN NORMAL UNIVERSITY
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