100results about How to "Strong hydration ability" patented technology

The invention provides a comb-like polymer fluid loss additive for drilling fluid and a preparation method thereof. The preparation method comprises the following steps of: performing esterification on polyethylene glycol monomethyl ether (PEGM) and maleic acid (MA) to obtain macromonomers; and adding two monomers, namely acrylamide (AM) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) into the macromonomers to perform copolymerization so as to obtain the comb-like polymer fluid loss additive with a long side chain by a solution polymerization method. The prepared comb-like polymer fluid loss additive has the advantages of resisting the temperature of 200 DEG C in the drilling fluid, along with good fluid loss reducing effect on the drilling fluid such as fresh water, saline and the like, capacity of controlling the drilling liquid to keep high rheological property under the condition of high temperature and high salinity, high temperature and salt resistance, stable fluid rheological property, mild synthesis condition, low equipment requirement and simple process.

The invention discloses a polymer nano-silica temperature-resistant, salt-tolerant and fluid loss reducing agent and a preparation method thereof. According to the preparation method, in the presence of nano-silica, a polymer-base nanometer composite material with amphiphilic block hydrophobic associating polymer wrapping inorganic nano-silica is successfully synthesized by virtue of a micellar emulsion polymerization method and combines the rigidity and the heat stability of the inorganic nano-silica and the characteristics of the amphiphilic block hydrophobic associating polymer together, and the temperature resistance, the salt tolerance and the thickening property of the polymer are obviously improved by virtue of the polymer-base nanometer composite material on the basis of the existing good performances of the amphiphilic block hydrophobic associating polymer. As a temperature-resistant, salt-tolerant and fluid loss reducing agent for a drilling fluid in the drilling engineering, the polymer nano-silica temperature-resistant, salt-tolerant and fluid loss reducing agent has a remarkable fluid loss reducing effect under high temperature and high salinity.

The invention relates to a non-cenosphere light weight cement slurry, which mainly solves the problem that the cement slurry cannot keep the density thereof under a high pressure condition. The non-cenosphere light weight cement slurry is characterized by comprising the following components in portion by weight: 100 portions of cement, 116 to 321 portions of water, 52 to 136 portions of fly ash, 14 to 38 portions of silica fume, 14 to 38 portions of superfine cement, and 6 to 11 portions of early strength agent, wherein the particle diameter of the silica fume (of which the SiO2 content is more than 90 percent) is more than 0 and less than 0.5 mu m, the particle density of the silica fume and the fly ash is 2.0 grams per cubic meter, and the particle diameter of the superfine cement is more than 0 and less than 2 mu m. The light weight cement slurry forms a set of incompressible light weight cement slurry system of which the density is between 1.40 and 1.55 grams per cubic meter through preferentially selecting external additives and applying a grain composition principle, wherein the flowability and the sedimentation stability of the cement slurry are good, the set cement strength is more than 15 MPa and cannot decline at a temperature of 150 DEG C so as to satisfy the technical requirements on oil field exploration and development.

The invention relates to a low-density cement paste system. The cement paste system comprises following components by weight: 100 parts of oil well cement, 65-106 parts of water, 6-40 parts of borosilicate hollow glass beads, 0.05-0.1 part of a silicone coupling agent, 25-40 parts of ultrafine cement, 10-20 parts of microsilica, 2-2.5 parts of a fluid loss agent, and 0.5-1.5 parts of sodium sulfate. The particle size of the microsilica having a SiO2 content larger than 94% is 0.1-0.5 [mu]m. The particle size of the ultrafine cement is 2-10 [mu]m. The density range of the cement paste is 1.20-1.60 g/cm<3>. The particle size of the borosilicate hollow glass beads is 25 [mu]m. The thickening time of the cement paste is adjustable. The 24-h compressive strength (taking 1.50 g/cm<3> as an example) is higher than 16 MPa. The cement paste system has good sedimentation stability and incompressibility, and improves construction safety of the low-density cement paste in well cementing operation.

The invention relates to a biological-source nutritional preservative for seafood. The biological-source nutritional preservative is characterized in that each liter of the distilled water of the biological-source nutritional preservative contains 0.4-0.6g of lysozyme, 2.5-3.5g of tea polyphenols, 20-28g of carboxymethyl chitosan, 10-14g of nisin, 17-23g of sodium alginate, 20-30g of lactobacillus, 1.5-2.5g of propolis extract and 10-14g of spice extract, wherein the spice extract is made of rhizoma galangae, garlic, onion, cinnamon, clove and rosemary. The biological-source nutritional preservative has the advantages that the biological-source nutritional preservative is compound by biological preservatives and is safe, nontoxic, simple in preparation and application method, outstanding in microorganism inhibition effect, good in preservation effect, capable of greatly prolonging the shelf life of the seafood and high in industry value.

The invention discloses a solid and liquid separation technique of water based system well drilling waste slurry, which includes the procedures that: (1) slurry preparation, water or well drilling wastewater is added to adjust the density of the water based system well drilling waste slurry not to be more than 1.20 g/cm<3>; (2) acidification and gelout, gel breaker sulphuric acid is added to adjust the pH value of the waste slurry after the density is adjusted not to be more than 5, and the acidification and gelout and stability elimination reaction are performed; (3) solid and liquid separation, the waste slurry liquid after being performed the full acidification and gelout and stability elimination reaction is fed into a solid and liquid separation device for the solid and liquid separation, so as to cause the solid phase and the liquid phase of the waste slurry to be separated. The solid and liquid separation technique of the water based system well drilling waste slurry provided by the invention fully solves the key technical problem that the water based system well drilling waste slurry is difficult to perform the solid and liquid separation, and establishes the reliable base for the innocent treatment of the water based system well drilling waste slurry.

The invention relates to a preparation method of a hydrophilic polymer anti-fog coating. The method comprises the following steps: immersing an activated base material in a mixed solution of a silanecoupling agent and a catalyst, coating a obtained silane coupling agent modified base material with the mixed solution of a hydrophilic monomer and an initiator, and initiating free radical polymerization through ultraviolet light or heat. The coating obtained through the method has good transparency and anti-fog performance, and the light transmittance in the visible light wavelength range is about 100%.

The invention relates to a negative electrode material for a lithium ion battery. The negative electrode material for the lithium ion battery is characterized by including a negative electrode active material, a conductive agent, a binder and a thickening agent; the thickening agent is selected from at least one of konjac glucomannan and konjac glucomannan derivatives. The thickening effect of the thickening agent in the negative electrode material of the lithium ion battery is relatively good.

A polyoxyethylene derivative represented by the formula (1):

wherein a whole molecular weight of the polyoxyethylene derivative is 500 to 160,000; n is 5 to 3650; L¹, L², and L³ each independently represent an alkylene group, a phenylene group, an ester bond, an amide bond, an ether bond, a urethane bond, a carbonate bond, a secondary amino group, or a combination thereof; X represents a functional group capable of reacting with a bio-related substance; Y represents a hydrophilic group having plural hydroxyl groups made from a residual group of xylitol or volemitol or a residual group of polyglycerin of trimer to 31-mer; Z represents a residual group of a compound having 2 to 5 active hydrogen atoms; b and c are as follows: 1≦b≦4, 1≦c≦4, and 2≦b+c≦5; and d and e each independently are 0 or 1.

The invention relates to high-temperature-resistant and large-temperature-difference-resistant cement grout for well cementation in an oil field. The cement grout is prepared from components of raw materials in parts by weight as follows: 600 parts of G-grade oil well cement, 30-36 parts of an HS101L fluid loss agent, 8-20 parts of an HS201L retarder, 1.8 parts of an HS-301S dispersant, 150 parts of quartz sand, 30 parts of silica fume, 1.8 parts of an HS-XF1S suspension stabilizer, 280-300 parts of water and 1 part of bis(2-ethylhexyl) sulfosuccinate sodium salt, wherein the grain size of the quartz sand is 80-120 meshes, the grain size of the silica fume is 300-400 meshes, and the content of silicon dioxide is 90% or higher. Liquid-phase raw materials are added to a grout mixing container and mixed uniformly; solid-phase substances are added to a solid-phase container and stirred uniformly, the solid-phase mixture is added to the grout mixing container, finally, a defoaming agent is added, and the mixture is stirred uniformly. The cement grout can be used under the condition of 50-180 DEG C, has prominent large-temperature-difference-resistant performance and can effectively avoid a super-retarding phenomenon caused by large temperature difference.

The invention discloses a fat emulsifier for feed use. The fat emulsifier contains the following components, by weight, 200-300 parts of granulesten, 10-50 parts of sucrose ester, 10-50 parts of monoglyceride, 10-20 parts of taurine and 580-770 parts of an excipient. A preparation method of the fat emulsifier contains the following steps: mixing granulesten and monoglyceride in proportion, heating to 60 DEG C, spraying the mixture into the excipient, uniformly mixing and drying to prepare a mixture; adding components excluding granulesten, monoglyceride and the excipient into the mixture; placing the mixture obtained from the step (3) into an agitator, stirring for 1-2 hours, putting the mixture into a pulverizer for primary crushing, taking out the crushed mixture and putting the crushed mixture into a ultrafine grinder for secondary crushing so as to obtain fine particles, sieving through a 100-mesh sieve, sealing and packaging so as to obtain the fat emulsifier for feed use. The fat emulsifier can emulsify most mixed lipid and has a large emulsification range. Meanwhile, the emulsifier can be added in the most economic mode, thus remarkably reducing breeding cost.

The invention belongs to the technical field of dispersing agent preparation, and discloses a comb polyelectrolyte type dispersing agent with dispersed nano particles and a preparation method of the dispersing agent. The dispersing agent comprises 3-(2-methacryloyloxyethyl trimethyl dimethylamino) propanesulfonic acid salt, enol polyoxyethylene ether, a chain transfer agent, an initiator, a chain terminator and deionized water. The prepared dispersing agent disclosed by the invention is comb polyamphoteric electrolyte; and after the nano particles adsorb the dispersing agent disclosed by the invention, steric hindrance effect among nano particles is relatively strong, and sedimentation is hardly caused. Therefore, the dispersing effect is good. Meanwhile, quaternary ammonium salt cation is introduced into a macromolecule main chain, so that the hydratability and the heat stability of the dispersing agent are enhanced.

The invention provides a sustained-release microcapsule-coated composite vitamin pre-mixed feed which has good stability and has sustained-release and bacterial inhibiting and sterilizing effects. 1 kg of the pre-mixed feed includes the following components, 20-100 g of microcapsule-coated composite vitamin, 20-50 g of amino acid chelated iron, 5-18 g of amino acid chelated copper, 20-45 g of amino acid chelated zinc, 4-5 g of manganese sulfate monohydrate, 0.10-0.11 g of 1% potassium iodate, 0.59-0.68 g of cobalt chloride, 0.05-0.14 g of 1% sodium selenite, 20-30 g of arginine, 5.9-6.4 g of threonine, 1.8-6.5 g of an enzyme preparation, 18-70 g of an acidification agent, 1.1-3.0 g of an anti-oxidizing agent, 8-50 g of a flavoring agent, 7.5-9.0 g of medicine additives, 78-95 g of 50% choline chloride and the balanced being a carrier which includes nano chelated attapulgite, and at least one of corn protein powder, stone powder, zeolite powder, medical stone or montmorillonite.

The invention discloses a boiled dumpling rich in unsaturated fatty acids. The boiled dumpling comprises a boiled dumpling wrapper and boiled dumpling stuffing, wherein the boiled dumpling wrapper is added with linseed meal, and the boiled dumpling stuffing is added with the linseed meal and Plukenetia volubilis flour. According to the boiled dumpling rich in unsaturated fatty acids, the boiled dumpling wrapper is properly added with the linseed meal, so that the frost crack resistance and taste of the boiled dumpling wrapper are improved; the boiled dumpling stuffing is added with the linseed meal and the Plukenetia volubilis flour, so that the water retention property, taste and nutritive value of the boiled dumpling stuffing are improved; particularly, the boiled dumpling is rich in unsaturated fatty acids, the boiled dumpling stuffing can be effectively inhibited from oxidative deterioration during frozen preserving, the texture, taste, nutrition and oxidation resistance of quick-frozen boiled dumplings are improved, and the quality defect of the traditional quick-frozen boiled dumplings is overcome.

The invention provides a preparation method and application of polyethylene glycol-polysialic acid block copolymers, which belong to the technical field of polymer materials. The copolymers are formed by connecting activated polysialic acid with different-base bifunctional polyethylene glycol, and are expressed as X-PEG-F-PSA, wherein X is one of active groups of different-base bifunctional PEG and is used to be connected with the active groups on protein or polypeptide; F is another active group of the different-base bifunctional PEG and is used to be connected with activated polysialic acid PSA; the block copolymers X-PEG-F-PSA are connected with Protein so as to form Protein-PEG-PSA products. The products can be widely used to modify amino-containing biological functional molecules, particularly protein or polypeptide and other macromolecules, and by utilizing the strong hydration performance of PEG and the immunogenicity of PSA, low-molecular-weight PEG and PSA are connected to modify various protein or polypeptide medicaments in order to improve the dissolvability, stability and immunogenicity of the medicaments, prolong the half-life period of the medicaments and improve therapeutic effects..

The invention discloses a high-strength pervious concrete material and a preparation method thereof. The high-strength pervious concrete material is composed of the following components in parts by weight: 1400-1500 parts of coarse aggregate, 400-500 parts of cement, 3.2-4 parts of a dispersing agent, 3.2-4 parts of toughening fibers and 110-120 parts of water. The coarse aggregate is limestone and has a particle size of 5-10mm; the cement is G-level high-sulfate-resistance oil well cement; the dispersing agent is sulfonated sodium tannin; and the toughening fibers are plasma treatment cellulosic fibers. The preparation method comprises the following steps: adding cement and water into a stirrer, stirring to be in a slurry state, sequentially adding the coarse aggregate, the dispersing agent and the toughening fibers, stirring to be uniformly mixed, pouring the mixture in a strength test mold, vibrating and compacting, and curing in a water bath curing box. According to the high-strength pervious concrete material disclosed by the invention, the compressive strength and corrosion resistance of the current pervious concrete are improved, good water permeability and durability of thepervious concrete are ensured, the production cycle is short, and the high-strength pervious concrete material has wide market prospects.

The invention discloses a temperature-resistant and salt-resistant filtrate reducer for a drilling fluid, and a preparation method thereof, and belongs to the technical field of oilfield exploitationdrilling treatment agents. The filtrate reducer comprises, by weight, 20-50 parts of a modified rice husk powder, 20-50 parts of modified bagasse, 20-60 parts of a modified sulfonated lignite resin, 10-40 parts of acrylamide, 10-40 parts of acrylic acid, 10-30 parts of 2-acrylamido-2-methylpropanesulfonic acid, 10-25 parts of maleic anhydride, 5-20 parts of N-vinylpyrrolidone and 10-15 parts of dimethyl diallyl ammonium chloride. Rice husks and bagasse are modified, and then are compounded with the sulfonated lignite resin, and the obtained mixture and other monomers undergo graft copolymerization, so the temperature resistance of the cellulose filtrate reducer can be effectively improved.

The invention discloses application of a chitosan quaternary ammonium salt to wastepaper recirculation. The chitosan quaternary ammonium salt is used as an anionic trash catcher for the wastepaper recirculation. The application of the chitosan quaternary ammonium salt to the wastepaper recirculation comprises the steps including taking out wastepaper, performing floatation and deinking, performing pulping treatment, preparing extra-dry wastepaper pulp, fully agitating the extra-dry wastepaper pulp, and adding the chitosan quaternary ammonium salt to the extra-dry wastepaper pulp. The chitosan quaternary ammonium salt applied in the wastepaper recirculation is used as the anionic trash catcher, which is natural and macromolecular and realizes biodegradation, and a degradation product has no toxic effect on the environment. The chitosan quaternary ammonium salt is remarkable in catching efficiency, stable and efficient.