194results about How to "High fluorine content" patented technology

To produce a desirable amount of desirable radical and/or ion in treating a substrate such as etching the substrate, depositing a thin film on the substrate and the like by using plasma and the like. As a treating gas, a gas such as CFmIn and the like containing both a strongly bonded halogen element (F etc.) and weakly bonded halogen element (I etc.) is used. A substrate is treated by active species produced by exciting the treating gas by an excitation means capable of providing an energy which cannot dissociate the strong bond but can dissociate the weak bond. Preferable excitation means is capable of emitting a monochromatic irradiation, having a single value of excitation energy, such as electron beam, light etc., or otherwise capable of providing plasma, having a peak energy value of electrons and sharp electron energy distribution, such as UHF plasma etc.

The invention relates to a method for preparing a polyester film for a photovoltaic cell backplane, which comprises:1, a process step of synthesizing polyester chips, which is to first add terephthalic acid, glycol and antimony acetate serving as a catalyst into a reaction kettle to perform esterification, then to add triethyl phosphate and antioxidant 1010 which are blended with glycol to perform an reaction and finally to discharge the products of the reaction; 2, a process step of preparing mother particles, which is to crush the polyester chips synthesized by the step 1, dry the crushed polyester chips, add polycarbodiimide, an ultraviolet absorber MV 3638, triethyl phosphate and antioxidant 1010, mix the mixture and extrude the mixture by a double-screw extruder to produce the particles; and 3, a process step of producing a film by biaxial tension, which is to place the polyester chips synthesized by the step 1, the mother particles prepared by the step 2 and SiO2 3,000+/-100ppm PET polyester chips into the double-screw extruder for blending the mixture, melt and extrude the mixture in the double-screw extruder, casting a piece by a casting piece machine and prepare the film by biaxial tension. The method of the invention can change an active terminal carboxyl group into a stable group, so the polyester film has high aging resistance.

A polyurethane material containing F in side chain is prepared through alternative polymerization between the flexible chain segment consisting of polyether diol and/or polycarbonate diol and the rigid chain segment consisting of diisocyanate and chain-enlarging agent. Its advantages are high biologic stability and compatibility and high elasticity, strength and resistance to oxidizing and hydrolysis. It can be used for preparing artificial blood vessel, heart valve, etc.

The invention discloses a process method for producing fluorine compounds and silicon compounds by cleanly utilizing fluosilicic acid. The process method comprises the following steps of: preparing fluosilicic acid as a phosphorus chemical by-product into an anhydrous aluminum fluoride product, a sodium fluoride product and a cryolite product, and combining with other industrial waste silicon slags and aluminum slags to prepare a 4A zeolite product. The process method comprehensively utilizes the fluosilicic acid and has high resource recovery rate, wherein the recovery rate of the fluorine element reaches higher than 90 percent. Waste silicon dioxide slags generated in the process can be recycled to produce white carbon black and the 4A zeolite, and a mother liquor, a cleaning solution and waste gas which are generated in the production process are all recycled, thereby the environmental pollution is reduced, and the purposes of zero emission and no pollution are truly achieved, thus the method completely meets the requirement for clean production. The invention has the advantages of advanced production process, good product quality and high value, wherein the fluorine content of the aluminum fluoride is high and between 63-65 percent; the quality index of the obtained white carbon black meets the requirement on the standard of the chemical industry; and the quality of the 4A zeolite product meets the requirements on the national standard and the standard of European and American developed countries.

The invention discloses a fluorinated polyurethane thickener applied to supercritical CO2 tackification and a preparation method thereof, belongs to the field of petrifaction, and in particular relates to a thickener for supercritical CO2 dry-method fracturing and a preparation method thereof. The invention aims to provide the thickener special for supercritical CO2 dry-method fracturing and the preparation method thereof, wherein the thickener has good tackifying performance, can be easily dissolved in CO2 fluid, and has a stable system. The thickener is prepared from the following components in parts by fraction: 10 to 15 percent of diisocyanate, 5 to 8 percent of polyethylene glycol, 5 to 8 percent of trimethylolpropane, 1 to 2 percent of catalyst, 1 to 2 percent of initiator, 3 to 5 percent of sorbitan polyoxyethylene ether, 3 to 5 percent of perfluor octyl ethylene, 3 to 5 percent of dodecafluoroheptyl acrylate, and the balance of castor oil. The thickener has good tackifying performance, can be easily dissolved in the CO2 fluid, and has the stable system.

A cored electrode to form a weld bead with a low diffusible hydrogen in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The filling composition includes a slag forming agent and at least two fluorine containing compounds.

The invention discloses fluorinated polyurethane and a preparation method thereof. The fluorinated polyurethane is prepared through the steps: fluoroalkyl-containing polyether glycol and diisocyanate perform addition polymerization reaction, a tin catalyst is utilized to catalyze, a chain extender is utilized to extend a chain, and an amino silane coupling agent is added to seal ends. A product contains a fluorine-containing polyether block, the fluorine content is high, fluoroalkyl on a polyether lateral group is prone to generating microphase separation and surface migration, polyurethane surface energy is low, and the fluorinated polyurethane is easy to store and cure as the silane coupling agent is utilized to seal the ends. A water contact angle of a coating prepared from the fluorinated polyurethane is higher than 110 degrees, and the coating has excellent water repellency.

The present invention relates to paint industry technology, and is especially one kind of fluoric water-base paint. The fluoric water-base paint consists of fluorocarbon emulsion 20-90 wt%, supplementary emulsion 1-25 wt%, pigment 5-20 wt%, stuffing 1-31 wt%, dispersant 0.1-1.4 wt%, defoaming agent 0.1-0.3 wt%, wetting agent 0.3-0.5 wt%, bactericidal anti-mildew agent 0.1-0.3 wt%, filming assistant 0.01-13.5 wt%, thickener 0.01-1.1 wt% and multifunctional assistant 0.3-0.5 wt% except water. The paint has high weather resistance, high chemical corrosion resistance, antifouling property, high performance/cost ratio and other advantages.

The present invention relates to a novel fluorine-containing cyclic compound that is derived from a norbornadiene and hexafluoroacetone and has an oxacyclopentane or oxacyclobutane structure. This compound may be represented by the following formula (1) or (2). Furthermore, the present invention relates to a fluorine-containing high-molecular compound prepared by a polymerization or copolymerization using this fluorine-containing cyclic compound or its derivative. By using such fluorine-containing high-molecular compound, it is possible to provide a superior resist material and a fine pattern forming process using the same.

The invention provides a polyurethane material with a side chain containing fluorine, which is formed by copolymerizing a flexible chain section formed by common commercial polyester dibasic alcohol and a rigid chain section formed by diisocyanate and a chain extender, and is characterized in that the chain extender is dihydric alcohol with a side chain containing a perfluor alkyl group or mixture formed by the dihydric alcohol with the side chain containing the perfluor alkyl group and other low-molecule dihydric alcohol or diamine. The invention further provides a preparation method of the polyurethane material with the side chain containing the fluorine. Due to the fact that the chain extender is connected onto a polyurethane main chain (hard section) in a side chain mode, the movement of a fluorocarbon side chain is hardly limited by the polyurethane main chain while the fluorocarbon side chain can remarkably change a phase structure of the polyurethane (separation degree of a soft section and the hard section), and the novel polyurethane material is provided with good surface performance and body performance.

The invention discloses polishing powder, a polishing liquid for glass, and a preparation method thereof, glass and electronic products, relates to the technical field of glass polishing. The polishing powder is prepared from 50 to 60% of cerium oxide, 20 to 30% of lanthanum oxide and 10 to 20% of fluorine; D50 of the polishing powder is 1.0 to 1.6 mu m, D90 of the polishing powder is 2.4 to 2.6 mu m, the Moh's hardness is 7 to 8. The polishing liquid is prepared from 50 to 60% of the polishing powder, 0.5 to 1% of a suspension agent, 1 to 10% of a dispersing agent, 1 to 5% of a flatting agent, 1 to 5% of a grinding aid and the balance of water. By controlling the content, particle size distribution and hardness of the polishing powder, high cutting rate can be guaranteed and scratch can be reduced. In addition, through adding the suspension agent, the dispersing agent, the flatting agent and the grinding aid, the suspension, dispersion, leveling and uniformity properties of the polishing powder and the grinding efficiency are improved are improved, the polishing liquid has the advantages of excellent suspension and dispersion properties, high polishing rate and good surface quality.

The invention discloses a fluoro-polyester resin and a preparation method and application thereof. The preparation method for the fluoro-polyester resin comprises the following steps of: reacting alkyl diol, cyclic anhydride, a fluorine-free mono-epoxy compound and a fluoro-containing mono-epoxy compound, diluting a reaction product by using acetone, adding into distilled water with stirring, and separating out a sediment to obtain the fluoro-polyester resin. The fluoro-polyester resin, a curing agent, a filer and an aid in a certain ratio are prepared into a hydrophobic polyester powder coating. The coating film has a large contact angle with water, and has high hydrophobicity. The fluoro-polyester resin is prepared from cyclic anhydride; and because water is not generated in the reaction process and vacuum dehydration is not needed, the requirement on a polyester synthesizing device is reduced and cost is saved.

The present invention relates to a polymerizable acrylate compound represented by the general formula (1):

(in the formula, R¹ represents a hydrogen atom, halogen atom, hydrocarbon group or fluorine-containing alkyl group, R² and R³ may be different or identical, and each of them independently is a hydrogen atom, fluorine atom, hydrocarbon group optionally branched, fluorine-containing alkyl group, aromatic group, or cyclic structure containing an aliphatic group and may contain oxygen or carbonyl bond) and a polymer compound obtained by using the same.

An automotive fuel hose having a three-layer structure excellent in sour-gasoline resistance and impact resistance. The automotive fuel hose includes a tubular inner layer in which fuel is adapted to flow; a low fuel permeability layer provided on an outer peripheral surface of the inner layer; and an outer layer provided on an outer peripheral surface of the low fuel permeability layer. The inner layer and the outer layer each including at least one of a polyolefin resin having a functional group and a polyamide resin and the low fuel permeability layer including a polyphenylene sulfide resin.

The invention relates to an anticorrosive paint and a preparation method thereof, particularly an environment-friendly fluorine/silicon-containing heavy anticorrosive epoxy resin paint and a preparation method thereof. The paint is composed of 30-70g of fluorine-containing epoxy resin, 10-40g of curing agent, 0.1-5g of POSS (polyhedral oligomeric silsesquioxane), 0.5-5g of silane coupling agent, 10-30g of reactive diluent, 0.5-3g of dispersant and 0.1-3g of photostabilizer. The paint provided by the invention has the advantages of high fluorine content, favorable adhesion to the substrate, simple construction technique, excellent corrosion resistance and excellent weather resistance, and is especially suitable for an anticorrosive coating under harsh conditions. The paint uses the reactive diluent capable of participating in curing reaction as the solvent instead of the organic volatile solvent component, and thus, has an environment-friendly function, thereby having great popularization and application value.

The invention discloses a fluorinated graphene lubricant additive and a preparing method thereof and a fluorinated graphene lubricant composite material, and relates to the technical field of lubricating materials. The preparing method of the lubricant additive comprises the step of conducting a fluorination reaction after absorbing moisture from graphene oxide. Through the fluorination process ofin-situ catalysis of graphene oxide by the moisture medium in graphene oxide, it is achieved that under the room temperature and the low fluorine gas concentration, fluorinated graphene with low oxygen content, high fluorine content and large interlayer spacing is prepared. The fluorinated graphene lubricant additive is simply mixed with lubricating oil, and does not easily get agglomerated in the lubricating oil, and the fluorinated graphene lubricant composite material with high dispersing stability is prepared. Compared with an original compound material, the friction coefficient is lowered by 52.3%, and the wearing ratio is lowered by 92.5%.

The invention discloses a six-membered ring structured fluorine-containing carbonic ester solvent. The structure of six-membered ring structured fluorine-containing carbonic ester solvent is more stable. In addition, as two fluorocarbon groups can be introduced on the side chain, the fluorine content in the molecules is high, and better flame resistance and low-temperature performance can be obtained. The invention also provides a preparation method of the fluorine-containing carbonic ester solvent. According to the preparation method, a high-efficiency catalyst is used and the product yield is high. Furthermore, the invention provides an electrolyte for lithium ion batteries. The electrolyte contains the above fluorine-containing carbonic ester solvent and electrolyte salt, and also comprises a non-fluoride solvent and/or a fluorine-containing additive. The fluorine-containing carbonic ester solvent can be used to effectively improve homogeneity and flame resistance of the electrolyte and raise high-temperature stability of batteries. The solvent has lower low-temperature viscosity such that low-temperature performance of batteries is better. As the surface tension of the fluorine-containing carbonic ester solvent is low, wetability between the electrolyte and an electrode material can be improved, and furthermore, electrochemical performance of batteries can be optimized.