16results about How to "Good viscosity reduction effect" patented technology

The invention relates to a UV viscosity-reducing adhesive, a UV viscosity-reducing adhesive composition, an adhesive tape and a preparation method. The UV viscosity-reducing adhesive comprises an acrylate copolymer, wherein the acrylate copolymer comprises a main chain and a multifunctional acrylate side group grafted on the main chain; the main chain is formed by copolymerizing a plurality of polymeric monomers including an acrylate soft monomer, an acrylate hard monomer and a functional acrylate monomer; the acrylate soft monomer is acrylate long-chain alkyl ester, and the carbon atom number of the long-chain alkyl ester is greater than or equal to 4; the acrylate hard monomer is methyl (methyl) acrylate; the functional acrylate monomer is acrylic acid (ester) containing carboxyl and acrylic ester containing hydroxyl; the polyfunctional group acrylate side group is formed by a UV active substance, each molecule of which contains a plurality of acrylate groups and contains one epoxy group, through a reaction between the epoxy group and the carboxyl group on the main chain. The UV viscosity-reducing adhesive has a UV viscosity-reducing function, does not need to additionally add UV active monomers or low polymers, can enhance the UV light viscosity-reducing effect and improve the viscosity-reducing efficiency, and is also beneficial to reducing the ingredient composition of a UV adhesive material and simplifying the preparation method.

The invention belongs to the technical field of thickened oil development, and particularly relates to a displacement exploitation method with controllable thickened oil activity. According to the displacement mining method with the controllable heavy oil activity, firstly, fracture development condition analysis is conducted on oil reservoir crude oil reserves, then different slugs are adopted for heavy oil mining according to the fracture development condition, and a water plugging agent, a composite viscosity reducer and a CO2 synergistic huff and puff mode and a CO2 response type alkyl amidine surfactant are adopted in the different slugs; the plugging agent can generate good water channeling plugging, viscosity reduction, gas channeling plugging and other effects, has good oil displacement capacity, can greatly improve the recovery efficiency, and is suitable for heavy oil recovery under harsh conditions.

The present invention provides a chemical viscosity reducer, a preparation method and an application thereof, and belongs to the technical field of oil extraction. The chemical viscosity reducer of the present invention comprises a viscosity reducer main agent, modified bentonite, and solvent oil; wherein the viscosity reducer main agent is prepared by reacting five monomers of butenoic acid, cinnamic acid, glycerol, guaifenesin and mannitol in a molar ratio; and the modified bentonite is prepared by modifying bentonite by in-situ polymerization of styrene and methyl eugenol. The chemical viscosity reducer has a small usage amount, low cost, good viscosity reduction effect, and good temperature resistance.

This invention relates to the field of polymer materials technology, specifically disclosing an environmentally friendly processing aid for polyolefins and its preparation method. The environmentally friendly processing aid for polyolefins includes a first component and a second component. The first component includes an antioxidant-modified oligomer A, and the second component is obtained by extrusion granulation of oligomer B, an organosilicon polymer, and a catalyst. By weight, the amounts of each component are: oligomer A 1-10 parts, antioxidant 0.1-2 parts, oligomer B 5-40 parts, organosilicon polymer 5-80 parts, and catalyst 0.1-5 parts. The processing aid of this invention does not contain perfluorinated or polyfluoroalkyl compounds. When used in the processing of polyolefins, it has advantages such as low addition amount, short onset time, good viscosity reduction effect, and effective improvement of product gloss. Furthermore, it can effectively form a dynamic lubricating layer on the surface of metal walls.

The invention discloses an alternate copolymerization type concrete admixture as well as a preparation method and application thereof. The preparation method of the alternate copolymerization type concrete admixture comprises the following steps: firstly, preparing an alternate isotactic precursor through chemical reaction of a monomer A and a monomer B, and then preparing the alternate copolymerization type concrete admixture through reaction of the alternate isotactic precursor and a monomer C. The prepared alternate copolymerization type concrete admixture has a regular alternate type molecular chain structure, anchoring groups can be effectively adsorbed on the surfaces of cement particles, long side chains are regularly distributed, larger steric hindrance can be provided, then the fluidity of concrete is greatly improved, the viscosity of the concrete is greatly reduced, and the performance of the concrete is improved. The preparation method is mild in synthesis condition, low in mixing amount, high in water-reducing rate and good in viscosity reduction, and the admixture can be widely applied to various types of concrete.

This invention relates to the field of oilfield chemical technology, and discloses a gemini surfactant, its preparation method, and its application. The gemini surfactant comprises the structure shown in Formula I, where R is a C1-C8 alkyl group or a C6-C8 aryl group; Y... ‑ SO3 ‑ M + The ions are alkali metal ions or alkaline earth metal ions; m = 1-30; n = 1-15. The gemini surfactant of this invention can be used as a viscosity reducer for heavy oil, exhibiting strong viscosity-reducing ability. Through the effective increase of the strength of the oil-water interface film via polyoxyethylene and polyoxypropylene segments, it has a good emulsifying effect, which is beneficial for the migration of oil-water emulsions in rock pores, expanding the swept area, significantly reducing residual oil saturation, and resulting in good oil displacement effect.

The invention belongs to the technical field of oil exploitation, and particularly relates to an oil-displacing agent for improving the recovery efficiency and a preparation method and application thereof. The preparation method comprises the following steps: adding 5-aminoisophthalic acid, first DMF (Dimethyl Formamide) and triethylamine into a reactor, cooling, slowly dropwise adding first malonyl chloride, and continuously reacting; dissolving benzidine disulfonic acid in second DMF, dropwise adding into the reactor, and continuously reacting; dropwise adding second malonyl chloride into the reactor, and continuously reacting; dissolving fatty amine in third DMF, dropwise adding into the reactor, and continuously reacting; and carrying out heating dissolution, cooling, solid precipitation, centrifugation and drying so as to obtain the product oil-displacing agent. The oil-displacing agent disclosed by the invention has the characteristics of high interfacial activity, good emulsifying effect and strong anti-shearing capability.

The invention relates to the technical field of thick oil emulsification and viscosity reduction exploitation, and discloses a composite viscosity reducer, a preparation method and application thereof, and a method for responsively demulsifying thick oil produced liquid, the composite viscosity reducer contains a cyclodextrin-based surfactant, water and modified graphene oxide; the modified graphene oxide comprises graphene oxide and a grafted polyoxyethylene chain, the chemical formula of the polyoxyethylene chain is-CH2CH (OH) CH2O (CH2CH2O) nCH2CH2OH, and n is any integer selected from 3 to 20; and the cyclodextrin-based surfactant contains a group of-OSO3Na and a group of-OH. The modified graphene oxide provided by the invention has excellent salt resistance and interface performance, and when the modified graphene oxide and a cyclodextrin-based surfactant are used in the composite viscosity reducer, the emulsification and viscosity reduction effects of the viscosity reducer on thick oil can be remarkably improved. And meanwhile, CO2 responsive demulsification of the oil-water emulsion is realized by utilizing pH responsive sites of the composite viscosity reducer.

The present invention belongs to the technical field of oil-water separation, and in particular, relates to a shear viscosity reduction cyclone device. The device includes a cyclone and a viscosity reduction pipe, a liquid inlet is tangentially arranged on the peripheral surface of the cyclone, a first overflow port is arranged at one axial end of the cyclone, a second overflow port is arranged at the other axial end of the cyclone, the viscosity reduction pipe is arranged on the outside of the cyclone, and the viscosity reduction pipe and the liquid inlet are coaxially connected. The shear viscosity reduction cyclone device disclosed in the present invention is a mechanical viscosity reduction treatment method, which does not require the addition of a viscosity reduction and pour point reduction agent or heating to achieve viscosity reduction, saves energy consumption, saves manpower, improves efficiency, and has a good viscosity reduction effect.

The present invention relates to the technical field of new tape materials, and in particular to a heat-reducing adhesive tape for semiconductor cutting, which comprises a substrate layer and a heat-reducing adhesive layer, wherein the heat-reducing adhesive layer comprises a polyacrylate copolymer resin, a thermoplastic resin, a polyisocyanate curing agent, a carboxyl crosslinking agent, a surface-modified heat-expandable microsphere and an organic solvent. The present invention functionalizes the surface of the heat-expandable microsphere by using a heat-expandable microsphere surface treatment technology, and matches the polyacrylate copolymer resin that participates in the crosslinking reaction with the heat-expandable microsphere and the thermoplastic resin that improves the heat-reducing adhesive tape, thereby improving the comprehensive performance of the heat-reducing adhesive tape.

The invention relates to the technical field of thick oil emulsification and viscosity reduction, and discloses an emulsification and viscosity reduction agent composition, a preparation method and application thereof, and a super thick oil emulsification and viscosity reduction method, the composition comprises an anionic sulfate surfactant, an ampholytic surfactant and a solvent; the anionic sulfate surfactant has a structure as shown in a formula (1), # imgabs0 #, wherein R1 is selected from C8-C22 alkyl groups; r3 and R4 are independently selected from H or-SO3M, and at least one of R3 and R4 is-SO3M; each R2 is independently selected from H, 2-hydroxy propyl and methyl; m is selected from any one of Li, Na, K and NH4; m is selected from any integer of 1-10, n is selected from any integer of 1-10, z is selected from any integer of 0-9, and the sum of m, n and z is any integer of 5-11. The super heavy oil emulsifying and viscosity reducing agent composition has excellent emulsifying and viscosity reducing effects and good salt resistance under the condition of weak shearing.

The invention relates to the technical field of high polymer materials, and particularly discloses an environment-friendly processing aid for polyolefin and a preparation method thereof.The environment-friendly processing aid for polyolefin comprises a first component and a second component, the first component comprises an antioxidant modified oligomer A, and the second component is prepared by extruding and granulating an oligomer B, an organosilicon polymer and a catalyst; the invention discloses a high-temperature-resistant low-smoke halogen-free flame retardant, which is prepared from the following components in parts by weight: 1 to 10 parts of oligomer A, 0.1 to 2 parts of antioxidant, 5 to 40 parts of oligomer B, 5 to 80 parts of organic silicon polymer and 0.1 to 5 parts of catalyst. The processing aid provided by the invention does not contain perfluorinated and polyfluoroalkyl compounds, has the advantages of small addition amount, short onset time, good viscosity reduction effect, effective improvement of product glossiness and the like when being used in a polyolefin processing process, and can effectively form a dynamic lubricating layer on the surface of a metal wall.

The invention discloses a slurry system suitable for complex rock stratum drilling and a preparation method and application thereof, the slurry system is composed of bentonite slurry and rock slag, and 23-41 g of rock slag is added into every 100 mL of bentonite slurry; the bentonite slurry is prepared from the following raw materials in parts by weight: 1 to 8 parts of bentonite, 0.03 to 0.32 part of sodium carbonate, 0.1 to 1 part of filtrate reducer, 0.1 to 0.5 part of coating inhibitor, 0.10 to 0.15 part of viscosity reducer and 100 parts of water. The raw material components are uniformly mixed and stirred, and an alkali solution is added to adjust the pH value to be neutral or alkalescent, so that the slurry system suitable for complex rock stratum drilling can be prepared. The slurry system can be used for preparing drilling fluid for complex rock stratum drilling in the Ordos region and the like. The problems that in the existing complex rock stratum drilling process, the rock slag amount is large, the inferior solid phase invasion concentration in mud is high, and the rheological property, the filter loss and the mud cake quality are difficult to control can be solved.

This application discloses an apparatus and method for reducing crude oil viscosity. The apparatus includes an amplitude transformer (202) with a high-energy acoustic beam transducer (201) connected to its top end, a tool head (204) with a scattering surface (2042) at its bottom end connected to its bottom end, a lifting lug (205) fitted at the center of a mounting disk (206), an exhaust port (2062) surrounding the center of the mounting disk (206), an amplitude transformer (202) fitted around the outer circumference of the exhaust port (2062), and a float ring (203) fitted around the circumferential edge of the mounting disk (206). This application is simple to operate and has high viscosity reduction efficiency.

The embodiment of the present application discloses a modified polyacrylate, a preparation method thereof, a glue solution, a glue and a UV adhesion-reducing scribing film, and a structural formula of the modified polyacrylate is as follows: wherein R1, R2 and R3 are independently any one of -H, an alkyl group, an aryl group, an ether group and a cyano group, R4 is an alkyl group, R5 is an organic group with an acrylate group and a carbon atom number of 2-26, R6, R7, R8, R9 and R10 are independently -H or a methyl group, X is O or N, and a, b, c, d and e are all integers greater than 0. 10 The embodiment of the present application introduces a high-reactivity photosensitive group (an acrylate group) into the polyacrylate, so that the light curing reaction efficiency of the polyacrylate is improved, the crosslinking density of the network structure formed by the UV curing of the polyacrylate is improved, and the adhesion-reducing effect of the generated UV adhesion-reducing scribing film is improved.

The invention relates to the technical field of asphalt pavement warm regeneration, in particular to an asphalt pavement in-situ lossless warm regeneration agent and a preparation method thereof. Comprising the following steps: preparing a flow dispersing agent; activating and modifying acetylene carbon black; and compounding aromatic hydrocarbon oil, SBS and a microwave sensitive material. Firstly, the styrene-butadiene-styrene block copolymer and the aromatic hydrocarbon oil are compounded to prepare the aromatic hydrocarbon oil / SBS type regenerant, then octadecanamide is added, and the asphalt pavement in-situ temperature-loss-free regenerant obtained after compounding is high in electrolyte stability, storage stability and mechanical stability; and the activated and surface-modified nanoscale microwave sensitive material acetylene carbon black powder is added, so that a better effect of softening and regenerating the original asphalt pavement can be achieved under the microwave-assisted action on the premise of not influencing the performance of the asphalt pavement in-situ non-destructive temperature regenerant.