140results about How to "Good antifouling effect" patented technology

The invention relates to an anti-staining soaping agent for printing of an activated dye and a preparation method thereof. An anti-staining soaping agent for printing of an activated dye, which is high in monomer selectivity and low in preparation cost, and a preparation method thereof are not provided at present. The soaping agent disclosed by the invention is characterized by being prepared from the following raw materials in parts by weight: 20-60 parts of fatty amine polyoxyethylene ether, 1-3 parts of alkylating agent, 0.1-2 parts of stabilizer, 30-70 parts of water and 2-10 parts of polyvinylpyrrolidone. The preparation method disclosed by the invention comprises the following steps of firstly mixing fatty amine polyoxyethylene ether, the alkylating agent, the stabilizer and the water; heating to 80-90 DEG C; distilling in vacuum at 40-50 DEG C for 1-2 hours after stirring for 3-4 hours; cooling to 40-50 DEG C; adding polyvinylpyrrolidone for mixing; heating to 60-70 DEG C, and cooling to 40-50 DEG C after stirring for an hour, so as to prepare a finished product. The anti-staining soaping agent is high in monomer selectivity, low in preparation cost, and simple in preparation technology.

The invention discloses a preparation method of solvent-type hydrophobic and oleophobic fluoroalkyl silicone resin. The preparation method of the hydrophobic and oleophobic fluoroalkyl silicone resin comprises the following steps: carrying out a hydrosilation addition reaction on hydrogen-containing silicone resin, a fluoroalkyl alkene compound, an alkenyl epoxy compounds and alkenyl silane to synthesize a fluoroalkyl/alkyloxy co-modified silicone resin intermediate FR, and carrying out hydrolysis copolycondensation on the intermediate FR, fluoroalkyl halogenosilane and a multifunctional coupling agent with the functionality being not less than 4 in the solvent in the presence of a non-exogenous catalyst in order to prepare the nanometer rough structure embedded hydrophobic and oleophobic fluoroalkyl silicone resin. The fluoroalkyl silicone resin cooperates with an organic tin catalyst, the obtained mixture is diluted with the solvent, the surface of glass or metal or an another substrate is coated with the diluted mixture, and the coated diluted mixture is cured at a high temperature to form a film, so the substrate is endowed with waterproofing and antifouling effects.

The invention relates to an anti-pollution coating composition and preparation thereof and application to low surface energy antifouling paint. The coating composition comprises an organic polyorganosiloxane polymer. According to a synthetic formula, the anti-pollution coating composition comprises, by weight parts, 100 parts of octamethylcyclotetrasiloxane, 0.05-0.5 part of basic catalyst, 0.5-3 parts of accelerant, 5-100 parts of silane coupling agent, 0.5-3 parts of end capping agent, 0-0.5 part of dehydrating agent and 15-25 parts of butyl acetate, wherein the dosage of organic acid or acid anhydride is 0-200% the molar weight of the silane coupling agent. The anti-pollution coating composition comprises, by weight percentage, 10-70% of organic polyorganosiloxane polymer, 0.5-20% of pigment, 0.5-20% of filler and 5-40% of solvent. The anti-pollution coating composition has the advantages of having low surface energy performance and hydrophilia and can be widely utilized in the ocean anti-pollution coating filed.

The invention relates to a method for making a marine microorganism antifouling paint by a marine microorganism fermentation product. The method realizes that bio-material is utilized to prepare the antifouling paint which prevents halobios from being attached; the invention belonging to the biological fouling protection technical field comprises three processing steps of preparing antifouling microorganism, antifouling protease and microorganism antifouling paint; firstly, barnacle and mussel are treated to a homogenate; the homogenate is taken out and put on a liquid substrate agar plate; the antifouling microorganism is obtained by lineation, separation and cultivation; secondly, the microorganism is conducted to a liquid seed substrate by a bevel substrate and cultivated in a fermentation substrate; a target active matter antifouling protease is obtained through the treatments of decompression, refrigeration and drying; finally, rosin is added to an alloprene solution and evenly stirred, then swell soil is added to the mixed solution and evenly stirred by electromotion; the active matter antifouling protease is added and evenly mixed, thereby obtaining the microorganism antifouling paint. The method for making the marine microorganism antifouling paint by the marine microorganism fermentation product has simple process course, low production cost, good antifouling effect and no environmental pollution.

A calcium hydroxide slurry is formed by combining a polymer additive with lime and water to form an aqueous slurry. The slurry so produced is viscostable, resists hard packing even after prolonged storage, is easily redispersed and has antiscaling properties. The amount of lime used is between 35 to 55% by weight of the slurry. The polymer additive is a polycarboxylate dispersing agent and is added in an amount between about 0.1 to 3% by weight of lime.

The invention discloses an inclined-fin-tube heat exchanger. The inclined-fin-tube heat exchanger comprises a heat exchanger shell, tube sheets and a plurality of inclined fin tubes, wherein tube internal medium inlets and tube internal medium outlets are formed in the sides of the tube sheets respectively, a tube external medium inlet and a tube external medium outlet are formed in the two opposite sides of the heat exchanger shell respectively, the inclined fin tubes are arranged in the mode of being inclined from the tube external medium inlet to the tube external medium outlet and/or in the mode of being inclined from the tube external medium outlet to the tube external medium inlet, and the flowing direction of tube external media and the flowing direction of tube internal media are in inclined intersection; or, the inclined fin tubes are set to be of a bent fin tube structure, and the flowing direction of the tube external media and the flowing direction of the tube internal media are in partially inclined intersection and partially perpendicular intersection; or, an inclined angle is formed between the flowing direction of the tube external media and the horizontal plane, and an inclined angle is formed between the flowing direction of the tube internal media and the vertical plane. Compared with the prior art, the inclined-fin-tube heat exchanger has the advantages that the heat exchange effect and the scale prevention effect are good, the frequency of operation maintenance of fin ash blowing through shutdown of the heat exchanger can be reduced, or the operation maintenance of fin ash blowing through shutdown of the heat exchanger can be avoided; the structure is simple, and the service life of the inclined fin tubes can be prolonged.

A paraffin-prevention and viscosity-reduction rectifier of an oil field flowing well is suitable for extracting oil from an oil field high-pressure well, and the long-standing, big and difficult problem that paraffin and scale of a flowing well are scraped and removed through manual work since the beginning of the oil exploitation history is solved. The rectifier is a tubular tool and mounted in the position about one thousand meters under a paraffin-troubled well section of the well. A first-level vortex rectifier body, an impinging stream phase mixing device, a second-level vortex rectifier body, an impact type acoustic oscillator and a third-level vortex rectifier body are mounted in the rectifier from bottom to top, a large-cluster laminar-flow condensed phase state of flowing oil, gas and water can be treated to form a fine-cluster milky eddying turbulence phase state, all heterogeneous components are made to wrap one another, refining, scattering and shielding of paraffin crystals and scale crystals are achieved, the physical state, the physical property, the flow state and the flow speed of produced liquid are optimized, and the phenomenon that the well is blocked by gathered paraffin and scale crystals on the oil tube wall is fundamentally eliminated; and meanwhile, the viscosity of the produced liquid is greatly lowered, the in-well burble procedure is effectively prolonged, manual paraffin and scale scraping and removing are omitted, workover treatment is reduced, oil extraction cost is lowered, and production and efficiency are improved.

The invention discloses an alloy anti-fouling oil extractor including the short pump canister and long plunger piston. The up connecting hoop is connected to the short pump canister top; which is fixed with the up scraping device; the lower is connected with the down connecting hoop which the lower is connected with the up lengthen pipe which the lower is connected with the up lengthen pipe connecting hoop which is fixed with the down scraping device. The up lengthen pipe connecting hoop lower is connected with the down lengthen pipe which the lower is connected with the lower lengthen pipe hoop which the lower is connected with the fixed valve cover which the lower is connected with the fixed valve seat joint; the alloy welding layer is sprayed on the inner side of the short pump canister, the up lengthen pipe and the down lengthen pipe. The invention can resist the abrasion, the rotten and dirty. The up and down scraping devices and the scraping ring, the valve ball, the valve seat are made by the hard alloy material. The invention can avoid block the pump to improve the using life.

The invention belongs to a single-component primer-topcoat ship corrosion and pollution prevention coating which is prepared from, by weight, 50-60 parts of modified epoxy resin, 20-25 parts of silicon resin, 15-20 parts of polyester resin, 16-20 parts of phenolic curing agents, 10-15 parts of polyacrylate leveling agents, 3-5 parts of wetting agents, 10-15 parts of titanium dioxide, 0.5-1.5 partsof 2-methylimidazole, 0.5-1.5 parts of benzoin, 3-5 parts of graphene, 4-8 parts of isothiazolinone, 20-25 parts of cuprous oxide, 4-8 parts of sterilizing agents, 2-4 parts of n-zinc oxide, 20-25 parts of n-ferrite and 15-20 parts of wollastonite powder. The coating has high adhesive force and high salt water and salt fog corrosion resistance and is good in weather resistance and high and low temperature resistance, and the coating serves as a corrosion and pollution prevention coating of a ship armor.

The present invention discloses a detergent, which is prepared by mixing trisodium phosphate, sodium carbonate, polyacrylic acid, hydrogen peroxide, valonea extract and mirabilite. The invention has advantages of low production cost and good descaling effect.

The invention discloses a slant finned tube. A plurality of fin bodies comprise slant planes and fin center holes formed in the inner sides of the slant planes, and the plurality of fin bodies are inclined to the outer wall surface of a base tube and continuously or intermittently arranged in a surrounding manner in the axial direction of the base tube; or the fin bodies comprise umbrella-shaped bodies and fin center holes formed in the middles of the umbrella-shaped bodies, and the outer wall surface of the base tube is tightly sleeved with the fin bodies through the fin center holes; or the fin bodies comprise slant ring-surface fins and flanging arranged at the end parts of the slant ring-surface fins, the outer wall surface of the base tube is sleeved with the slant ring-surface fins through inner rings, and the slant ring-surface fins are tightly connected with the outer wall surface of the base tube. After the slant finned tube is used, smoke ash or air dust can slide from the slant planes of the fins and cannot be accumulated, so that the scale prevention effect is good, long-term stable and effective heat transfer effect is maintained, and conditions of frequent shutdown caused by dust removal of the heat exchanger and operational maintenance for blowing fin ash can be reduced or avoided; and meanwhile, the slant finned tube has the characteristics that the structure is simple and the service life of the finned tube is prolonged.

The invention discloses a device for automatic cleaning of hard scale in heat exchange tubes. According to the device for automatic cleaning of the hard scale in the heat exchange tubes, a steel wire cleaning helix in each heat exchange tube is installed on an inlet fixing frame or on a fixing hole plate of an inlet pipe box after being connected with a soft tightening spring in series. The steel wire cleaning helix vibrates violently in the radial direction when the device operates, and then the hard scale and crystal salt scale can be removed violently. A rotary stop vane or a stop vane which swings and rotates back and forth which is driven by a power head or a power blade is installed in an outlet pipe box, outlet resistance is increased sharply when the stop vane skims over an outlet of each heat exchange tube, the flow rate inside each tube is decreased greatly, and the tightening spring contracts to drive the steel wire cleaning helix to retract and move by a distance which is larger than the length of the screw pitch of the steel wire cleaning helix. The uniformity of scale cleaning is effectively improved due to the reciprocating motion of the steel wire cleaning helix. The steel wire cleaning helix also serves as a convective heat transfer augmentation element inside the corresponding tube, and the heat transfer augmentation amplitude is more than one time that of a continuous rotation steel wire helix. Therefore, the device for automatic cleaning of the hard scale in the heat exchange tubes has the advantage that continuous and efficient operation of heat-transfer equipment (such as evaporators, crystallizers and condensers) can be guaranteed for a long time.

The invention discloses an anti-scaling agent for oil well silicate scale. The anti-scaling agent is prepared by compounding a component A, a component B and water according to the mass ratio of 1:1:2, wherein the component A represents random terpolymer the side-chain of which has carboxylic acid, sulfonic acid and carboxylic acid ester functional groups, and the component B represents phosphinocarboxylic acid compound containing a phosphoric acid group-PO(OH)2 and a carboxylic acid group-COOH. The invention is applied to the scaling prevention of a strong base ASP flooding block productionwell, efficiently prevents the silicate from scaling at a pump, a bar pipe and the like, reduces the frequency of operation because of scaling and prolongs the pump inspection period of the productionwell.

The invention discloses a preparation method for a marine microorganism antifouling paint. The paint is prepared from the following components in parts by weight: 20-80 parts of ABS rubber powder, 10-79 parts of AS resin I, 1-10 parts of water-based color paste, 0.5-5 parts of a chemical resistant modifier, 5-25 parts of a heat resistant, 0.1-1 part of an oxygen agent, 0.1-1 part of a lubricant, 10-20 parts of a silane coupling agent, 0.1-2 parts of a plastifying accelerant, 10-20 parts of a flatting agent, 4-6 parts of an antifreezing agent, 0.1-0.2 part of a defoamer, 10-20 parts of deionized water, 1-10 parts of inorganic nanoparticles, 10-15 parts of a marine biofilm, 10-15 parts of dinoflagellate, 10-15 parts of dunaliella salina, 5-10 parts of barnacle and 5-10 parts of mussels. The preparation method disclosed by the invention is simple and convenient in process, low in production cost and good in antifouling effect, has certain corrosion resisting and heat resisting properties, and is free of environmental pollution.

The invention discloses a multifunctional cleaning scale remover, which is prepared by mixing hydrolytic polymaleic anhydride, phosphoric acid, 30 percent hydrochloric acid, thiourea, fatty alcohol polyoxyethylene ether and water. The multifunctional cleaning scale remover is low in production cost and good in scale removing effect.

The invention provides an antistatic coating composition for reducing coating defects, wherein the composition comprises, by weight, 100 parts of conductive polymer resin, 100-1000 parts of water dispersive polyurethane resin composed of anionic polyether polyurethane dispersion which contains at least one functional group selected from the following group of hydroxyl, amine, alkyl and carboxyl, 100-1000 parts of any cross-linking agent resin selected from the following group of isocynate, carbonyl imide, oxazoline and melamine compound, and 10-100 parts of fluororesin. The composition also comprises 0.001-1 parts of acetylenediol surfactant on the basis of 100 parts of all the said component resin. In addition, the invention provides an antistatic polyester film, which is prepared by coating the antistatic coating composition on one side or two sides of a polyester film during the in-line coating process. The antistatic polyester film is excellent in the tape peel force, the anti-scaling property and the solvent resistance and the physical property of the antistatic polyester film do not become worse significantly due to the property of the surfactant.

The invention provides a preparation method of a cylindrical box body with the antifouling property for a deep and open sea net cage. The method comprises the following steps of A, preparing an antifouling netting, which comprises three aspects of preparing a modified high-density polyethylene composite material, preparing an antifouling monofilament bundle and processing the antifouling netting;B, preparing an anti-abrasion netting from a polyamide netting coated with a polyurea coating; and C, preparing the cylindrical box body, which comprises three aspects of side net processing, bottom net processing and cylindrical box body processing. According to the cylindrical box body with the antifouling property for the deep and open sea net cage obtained by the preparation method, the antifouling property of the cylindrical box body can be greatly improved and the water resistance of the cylindrical box body and the attachment area of fouling organisms can be reduced on the premise of keeping the netting strength of a side net unchanged, fouling organism attachment of the cylindrical box body and net breaking fish escape accidents under severe sea conditions can be greatly reduced, and green development and modern construction of the deep and open sea net cage culture industry are realized.

The invention relates to use of 5-(4-hydroxy phenylmethyl) thiazolidin-2,4-dione serving as an anti-fouling agent in an aqueous coating material. The aqueous anti-fouling coating material disclosed by the invention has a relatively good anti-fouling effect and has broad prospects in industrial application.

The invention relates to a design and preparation method of an air cooler steel-based aluminum finned tube bundle anti-scale nano composite coating, which is characterized by comprising the followingsteps: designing the air cooler steel-based aluminum finned tube bundle anti-scale nano composite coating, preparing the air cooler steel-based aluminum finned tube bundle anti-scale nano composite coating and the like, and the method is scientific and reasonable, strong in applicability and good in effect. By adopting the method, the service life of the steel-based aluminum finned tube bundle canbe prolonged, the corrosion aging rate is reduced, the cost is saved, repeated maintenance and cleaning are not needed, the cleaning period is prolonged, and the efficiency of the air cooler is improved.