1103 results about "Hydroxypropylmethyl cellulose" patented technology

The invention discloses sound-insulation and heat-insulation building mortar and a preparation method thereof, and relates to the technical field of building materials, the sound-insulation and heat-insulation building mortar comprises, by weight, 42-48 parts of a cementing material, 15-25 parts of an auxiliary material, 17-22 parts of lightweight aggregate, 30-35 parts of a functional filler, and 1-2 parts of an additive; the cementing material is a mixture of sulphoaluminate cement and Portland cement; the auxiliary material is a mixture of fly ash and quartz sand, the lightweight aggregate is a mixture of 20-40-mesh hollow vitrified microbeads and 70-90-mesh hollow vitrified microbeads, and the mass ratio of the hollow vitrified microbeads to the hollow vitrified microbeads is 1: (2-3); the functional filler is a mixture of modified waste rubber particles and modified fibers; the additive is a mixture of a polycarboxylate superplasticizer and hydroxypropyl methyl cellulose ether. The mortar disclosed by the invention is good in thermal insulation performance and excellent in mechanical property, the method disclosed by the invention is simple to operate and low in cost, and the prepared mortar is excellent in performance.

The invention provides an adipose-derived stem cell composition for wound repair as well as a preparation method and application thereof, and belongs to the technical field of stem cells. The method comprises the following steps: adding fetal calf serum, dexamethasone, penicillin, streptomycin, collagen, magnetic particles and a P substance into a DMEM culture medium to prepare a culture medium, performing low-frequency magnetic field culture and separation on adipose-derived stem cells to obtain a stem cell solution, performing embedding to obtain stem cell microspheres, freeze-drying supernate to obtain a paracrine culture substance, and performing freeze-drying on the paracrine culture substance to obtain the adipose-derived stem cells. The adipose-derived stem cell composition for wound repair is prepared by mixing the adipose-derived stem cell with stem cell microspheres, hydroxypropyl methyl cellulose, carboxymethyl chitosan, hyaluronic acid, glycerol and stem cell microspheres, has better effects of implanting into damaged tissues, releasing nutrient substances, promoting neovascularization, regulating oxidative stress and inducing anti-inflammatory response, is beneficial to wound repair, and has a good application prospect. The gel can be converted into a gel phase at the skin epidermis temperature of 35-37 DEG C, components are stabilized, and sustained and controlled release is realized.

The invention belongs to the field of building decoration materials, and discloses a GRG gypsum composite reinforced material and a preparation method thereof. The high-strength concrete is prepared from the following components in parts by weight: 45 to 65 parts of alpha-semi-hydrated gypsum, 12 to 20 parts of composite reinforced fiber, 0.5 to 2 parts of graphene nanofiber, 2 to 5 parts of nano silica fume, 5 to 10 parts of ethylene-vinyl acetate copolymer latex powder, 1 to 2.5 parts of hydroxypropyl methyl cellulose, 0.1 to 0.8 part of polycarboxylic acid type water reducing agent, 1 to 4 parts of calcium stearate, 3 to 8 parts of vermiculite powder and 28 to 40 parts of deionized water. Aiming at the problems that an existing GRG material is insufficient in mechanical property, low in fireproof grade, poor in thermal performance, poor in durability and the like, a multi-dimensional synergistic enhancement system is constructed by adopting composite reinforced fibers, functional nanofiller and a gradient preparation process, the problems of dispersion and interfacial compatibility of the nanofiller are solved, and the comprehensive performance of the GRG material is improved. The performance breakthrough of high strength, high fire resistance, low heat conduction and long durability is realized.

The invention belongs to the technical field of new building materials, and provides a low-alkalinity and early-strength ardealite filling and curing material and a preparation method thereof.The low-alkalinity and early-strength ardealite filling and curing material is prepared from ardealite, a curing agent and water, the curing agent comprises silica fume, limestone powder, superfine granulated blast furnace slag powder, metakaolin, calcium aluminate powder, Portland cement clinker powder, a suspension stabilizer and hydroxypropyl methyl cellulose ether. The problems of delayed coagulation, low early strength and high alkalinity of a common cement-based ardealite filling material can be solved, and the technical requirements of ardealite cemented filling are met.

The invention discloses a composite gel-physical foaming synergetic carbon dioxide foam concrete preparation technology, and the carbon dioxide foam concrete is composed of the following components in parts by mass: 15-45 parts of sulphoaluminate cement, 10-50 parts of semi-hydrated gypsum, 5-15 parts of Portland cement, 0-30 parts of mineral powder, 0-0.3 part of a gypsum retarder, 0.2-0.4 part of a retarder, and 0.2-0.4 part of a water reducing agent. The invention relates to a cement mortar which is prepared from the following components in parts by weight: 0.2-0.6 part of calcium stearate, 0.1-0.3 part of hydroxypropyl methyl cellulose ether (HPMC), 0.2-0.45 part of water cement and 5-15 parts of prefabricated foam. When the sulphoaluminate cement, the Portland cement and the semi-hydrated gypsum are mixed according to a specific mass ratio to prepare the carbon dioxide foam concrete, the hydration synergistic effect among the sulphoaluminate cement, the Portland cement and the semi-hydrated gypsum can be exerted, so that the mechanical property of the carbon dioxide foam concrete can be greatly improved.

The invention discloses a self-adaptive control method for underground coal mine hole sealing and grouting, and belongs to the technical field of well hole packing. The method comprises the steps that plugging bags are sequentially installed at the cross sections of two drill holes of an underground coal mine working face, compressed air is injected into the plugging bags, and a cylindrical space between the bags is filled with multi-stage coal powder distribution materials in a layered mode and compacted; mixing ordinary Portland cement, a composite expanding agent, a carboxyl water reducer, a hydroxypropyl methyl cellulose stabilizer and water according to a preset ratio, and screening; stepwise pressure injection is implemented, and the grouting pressure and rate are regulated and controlled in a variable-rate climbing mode, a constant-pressure variable-speed mode and a proportional attenuation mode; and constant-temperature and constant-humidity maintenance is conducted on the grouting completion area, so that the desorption value of the drilling cuttings is reduced to a target value. According to the scheme, the grouting process parameters can be optimized, and the grouting quality is improved.

The invention discloses high-performance fluid-state solidified soil for backfill based on composite ardealite of building residue soil, which is prepared by taking the building residue soil as a core raw material, taking a compound of a polycarboxylic acid water reducer and hydroxypropyl methyl cellulose as a fluidization regulator, and mixing the fluidization regulator and the building residue soil to prepare the high-performance fluid-state solidified soil for backfill. Superfine slag powder, fly ash, nano silicon dioxide, metakaolin and ardealite are used as curing agents, so that the fluid-state solidified soil with strong performance is obtained. Through the synergistic effect of all the components and innovative processes such as liquid nitrogen low-temperature grinding, nano material compounding and a segmented vacuum stirring process, the effect that the ultrahigh strength of the construction waste soil reaches 7.5 MPa within 14 days is achieved for the first time and is improved by 40% or above compared with that of conventional solidified soil, and the industrial problem that traditional waste soil is insufficient in solidification strength is solved; and collaborative optimization of strength and fluidity is realized. Meanwhile, efficient resource utilization of the construction waste is achieved, land occupation and environmental pollution caused by muck landfill are greatly reduced, and the requirement for green and sustainable development is met.

The invention belongs to the technical field of veterinary preparations, and particularly relates to a tilmicosin premix and a preparation method thereof. The tilmicosin premix is prepared from the following raw materials: tilmicosin, a polylactic acid-glycolic acid copolymer, lecithin, modified hydroxypropyl methyl cellulose, grafted polyvinylpyrrolidone, polyethylene glycol and an antioxidant, a solid dispersion is formed through lecithin and grafted polyvinylpyrrolidone, the solubility and stability of tilmicosin are enhanced, polylactic acid-glycolic acid copolymer nano-microspheres are prepared through a double-emulsion solvent evaporation method, slow release of drugs is achieved, dodecyl modified hydroxypropyl methyl cellulose and polyethylene glycol are combined, and the sustained release effect is achieved. The solubility and the slow release characteristic are further enhanced. The activity of the granular premix is effectively preserved, and the granular premix is convenient to use and transport.

The invention discloses a solid waste-based cold-mixed asphalt mixture for preventive maintenance as well as a preparation method and application thereof, and belongs to the technical field of road engineering. The solid waste-based cold-mixed asphalt mixture is prepared from the following components in percentage by mass: 4.7 to 8.6 percent of modified cold-mixed asphalt adhesive, 85.8 to 93.9 percent of aggregate and 1.4 to 5.6 percent of composite filler, the modified cold-mixed asphalt adhesive is prepared from the following components in parts by weight: 86 to 96 parts of emulsified asphalt, 1 to 5 parts of bisphenol A type waterborne epoxy resin emulsion, 0.05 to 1 part of curing agent, 0.01 to 0.05 part of defoaming agent, 1.5 to 8 parts of waterborne polyurethane emulsion and 1 to 3 parts of hydroxypropyl methyl cellulose. The solid-waste-based cold-mixed asphalt mixture prepared by the method shows excellent comprehensive performance in high-temperature rut resistance, water damage resistance, freeze-thaw resistance, skid resistance, volume stability, interlayer shear resistance and the like, promotes reasonable utilization of solid waste resources, and has good economic and environmental benefits.

The invention discloses an ovarian protection composition containing ergothioneine and a preparation method of the ovarian protection composition, and relates to the technical field of ovarian protection compositions. The ovary protection composition containing the ergothioneine is prepared from the following components in parts by mass: 0.1 to 0.5 part of the ergothioneine, 0.05 to 1 part of S-equol, 1 to 5 parts of reducing coenzyme Q10, 1 to 3 parts of vitamin E, 10 to 20 parts of chitosan oligosaccharide, 30 to 50 parts of microcrystalline cellulose, 3 to 8 parts of hydroxypropyl methyl cellulose, 0.5 to 2 parts of silicon dioxide and 0.5 to 2 parts of a stabilizer. By adopting the stabilizer, photooxidation and hydrolysis of sensitive components are inhibited through molecular action, and the long-term stability of the composition in a humid and hot environment is remarkably improved in combination with the physical barrier action of silicon dioxide. Through the antioxidant synergistic effect of the ergothioneine and the vitamin E, the hormone regulation effect of the S-equol and the energy metabolism improvement effect of the coenzyme Q10, a multi-layer ovarian function protection system is constructed, and the health state of ovaries is improved. Through a special process, the tablet can be rapidly disintegrated and slowly released in an intestinal targeted manner, burst release of active ingredients is avoided, and the absorption efficiency is improved.

The invention relates to the technical field of concrete waterproofing agents, in particular to a high-efficiency concrete anti-crack waterproofing agent and a preparation method thereof, and the high-efficiency concrete anti-crack waterproofing agent is prepared from the following raw materials in parts by weight: a calcium sulphoaluminate expanding agent; light burning of magnesium oxide; re-burning the magnesium oxide; nano-scale silicon dioxide; metakaolin; polypropylene fibers; basalt fibers; styrene-acrylic emulsion; a silane emulsion; silica fume; hydroxypropyl methyl cellulose; and a polycarboxylic acid water reducer compatilizer. According to the high-efficiency concrete anti-crack waterproof agent disclosed by the invention, the nano-silica, the metakaolin and the styrene-acrylic emulsion synergistically block nano-to-macroscopic multi-stage pores, so that double waterproofing of physical filling and chemical film forming is realized; the polypropylene and the basalt fiber are subjected to ultrasonic dispersion and interface combination optimization to form a three-dimensional anti-crack network, the component uniformity and the functional stability are ensured through precise proportioning, graded mixing and directional granulation, meanwhile, the waterproof agent is compatible with industrial production fluctuation, large-scale application reliability is ensured, and the problems that a traditional waterproof agent is single in function and insufficient in durability are solved.

The invention relates to the technical field of building materials, and provides washing gangue concrete with high slump loss resistance and a mixing process thereof. The high-slump-retaining washed gangue concrete is prepared from the following raw materials in parts by weight: 200 to 220 parts of cement, 140 to 150 parts of mineral powder, 60 to 65 parts of fly ash, 680 to 720 parts of machine-made sand, 950 to 970 parts of washed gangue, 150 to 160 parts of water, 16 to 17.5 parts of a water reducing agent, 0.15 to 0.3 part of a slump retaining agent and 4 to 4.3 parts of polyethylene glycol. The slump retaining agent is hydroxypropyl methyl cellulose ether; and the viscosity of the hydroxypropyl methyl cellulose ether is 100 thousand mPa.s to 300 thousand mPa.s. According to the technical scheme, the problems of poor slump retaining performance and low compressive strength of washed gangue concrete in the prior art are solved.

The invention discloses multi-scale toughened full-solid-waste ultrahigh-ductility concrete, which is prepared from the following raw materials in parts by weight: 500 to 650 parts of full-solid-waste cementing materials, 110 to 150 parts of calcined coal gasification slag, 190 to 250 parts of calcined fly ash, 20 to 40 parts of silica fume, 10 to 30 parts of metakaolin, 780 to 930 parts of washed sand, 10 to 25 parts of fly ash fibers, 0.6 to 0.9 part of hydroxypropyl methyl cellulose, 20 to 30 parts of polycarboxylic acid water reducing agents and 300 to 400 parts of water. The calcined coal gasification slag is subjected to gradient heating to 800-960 DEG C, heat preservation is conducted for 30-60 min, then the calcined coal gasification slag is cooled to the room temperature at the cooling rate of 10-15 DEG C / min, and the calcined coal gasification slag is obtained after powder grinding. According to the multi-scale toughened full-solid-waste ultrahigh-ductility concrete provided by the invention, the toughness and the mechanical property of the concrete can be enhanced, the performance of the concrete in an extreme environment is improved, meanwhile, the solid waste utilization rate is increased, and the production cost of the concrete is reduced.

The invention relates to the technical field of mortar, in particular to cement self-leveling anti-crack and anti-seepage mortar and a preparation method thereof. The cement self-leveling anti-cracking and anti-seepage mortar is prepared from the following raw materials in parts by mass: 50 to 70 parts of Portland cement, 70 to 90 parts of quartz sand, 5 to 10 parts of nano metakaolin, 1 to 3 parts of calcium sulfate, 5 to 10 parts of polyethylene fiber, 1 to 2 parts of nonionic surfactant, 1 to 2 parts of silane coupling agent, 3 to 8 parts of composite basalt fiber, 0.5 to 1.5 parts of polycarboxylate superplasticizer and 1 to 3 parts of defoaming agent. 1-3 parts of hydroxypropyl methyl cellulose, 1-2 parts of a retarder and 0.5-1.5 parts of a coagulant. The mortar material has good anti-cracking performance and anti-seepage performance and excellent durability, can effectively solve the problem that the anti-cracking performance and the anti-seepage performance of the mortar material in the prior art cannot meet the environmental requirements, and is suitable for large-scale popularization and application.

The invention discloses a high-strength quick-setting 3D printing concrete material based on nanocrystalline nucleus synergistic excitation and a forming preparation method thereof, and belongs to the technical field of building materials. The high-strength quick-setting 3D printing concrete material based on nanocrystalline nucleus synergistic excitation is prepared from the following components in parts by weight: 40 to 50 parts of phosphogypsum, 20 to 30 parts of Portland cement, 5 to 15 parts of sulphoaluminate cement, 1 to 5 parts of nanocrystalline nucleus agent, 0.5 to 1 part of carbon nanotube, 20 to 40 parts of phosphogypsum lightweight aggregate, 1 to 3 parts of additive, 1 to 3 parts of steel fiber and 0.1 to 0.3 part of hydroxypropyl methyl cellulose. According to the invention, by introducing a nano crystal nucleus synergistic excitation technology and combining with a 3D printing process, high performance of the phosphogypsum-based concrete material is realized, and a new material solution is provided for sustainable development of the building field.

The present invention discloses a kind of preparation method and use method of anti-abrasion concrete admixture under freeze-thaw-solution environment, the admixture includes the components of following parts by weight:50~60 parts of STG powder, 5~8 parts of polyimide fibers, 1~3 parts of hydroxypropyl methyl (HPMC) cellulose, 10~13 parts of polycarboxylate water-reducing agent, 10~15 parts of antifreeze, 10~13 parts of expansion agent, wherein STG powder includes modified silica fume-glass powder, silicon carbide titanium, graphene oxide. Anti-abrasion concrete admixture under freeze-thaw-solution environment of the present invention can effectively suppress the decomposition of calcium hydroxide, and can refine pore structure, make hydraulic concrete more compact, while improving the ability of hydraulic concrete to resist dissolution, enhance its anti-abrasion performance, the admixture has good low temperature resistance, can be applicable to cold low temperature environment, for the anti-abrasion strength under low temperature conditions there is obvious improvement.

The invention discloses low-carbon flow-state solidified soil for a seasonal frozen region. The low-carbon flow-state solidified soil comprises soil, a curing agent and water, the dosage of the curing agent is 15-20% of the mass of the dry soil; the water content is 40-60% of the dry mass of the soil and the curing agent; the soil comprises sludge and building residue soil, and the sludge accounts for 20-40 parts by weight, and the building residue soil accounts for 60-80 parts by weight; the curing agent is prepared from the following components in parts by weight: 40 to 60 parts of phosphogypsum, 10 to 15 parts of mixing plant waste slurry, 20 to 40 parts of steel slag, 5 to 10 parts of quick lime, 0.5 to 1.2 parts of glycerol, 0.2 to 0.6 part of hydroxypropyl methyl cellulose and 1 to 1.5 parts of water reducing agent; according to the invention, various technical problems of insufficient anti-freezing performance, unstable fluidity, long setting time, insufficient early strength, large shrinkage deformation, easy generation of segregation and bleeding and the like of the existing fluid-state solidified soil are solved, and meanwhile, more low-carbon environment-friendly raw materials are introduced, so that multi-aspect improvement of the performance of the fluid-state solidified soil and maximization of environment-friendly benefits are realized; and a more reliable and efficient solution is provided for earthwork such as foundation pit backfilling.

The invention discloses a slow-release phosphorus removal material and a preparation method and application thereof, and belongs to the technical field of sewage treatment, the slow-release phosphorus removal material comprises the following components by mass: 40-55 parts of calcium peroxide, 25-35 parts of a binder, 2-5 parts of bentonite, 5-20 parts of calcined oyster shell powder, and 10-25 parts of iron-loaded modified red soil; the binder is prepared from Portland cement, polyacrylic acid and hydroxypropyl methyl cellulose ether according to the mass ratio of 1: (0.2 to 1): (0.1 to 0.8). Under the synergistic effect of the calcium peroxide, the binder, the bentonite, the calcined oyster shell powder and the iron-loaded modified red soil, the filter material can be used as a phosphorus removal filter material, can be directly used as a filter material of a filter tank, a wetland and the like independently or in combination with quartz sand, gravel and other filter bed filter materials, can permanently remove phosphorus in surface water, can also be directly put into rivers, lakes and ponds, and can be used as a filter material of a filter tank, a wetland and the like. In addition, the preparation cost is low, and wide application prospects are achieved.

The invention discloses a preparation process of instant donkey-hide gelatin granules. The preparation process comprises the following steps: preparing donkey-hide gelatin powder; preparing an adhesive from donkey-hide gelatin powder, hydroxypropyl methyl cellulose, sucrose ester-13 and water; putting the rubber powder into a raw material container of a boiling granulator for granulating; drying the granules in a microwave drying oven; and drying the granules in an infrared electric heating drying box, and spraying a coating agent solution for coating to obtain the instant donkey-hide gelatin granules. Through boiling granulation, a solid dispersion technology and a particle coating and microwave drying technology, the problems that instant donkey-hide gelatin particles are prone to caking, poor in dissolubility and poor in taste are solved, meanwhile, the smell of donkey-hide gelatin is reduced and the solubility is improved through selection of a coating agent, and the instant donkey-hide gelatin particles prepared through the technology reduce the dryness of donkey-hide gelatin, so that the quality of the donkey-hide gelatin particles is improved. Internal heat caused by long-term use of colla corii asini is effectively prevented, the content of volatile alkaline substances in the product is reduced, the stability is improved, and the product quality is improved.

The present invention provides a preparation method of high-viscosity hydroxypropyl methylcellulose. A preparation method of high-viscosity hydroxypropyl methylcellulose comprises the following steps: grinding and alkalizing refined cotton cellulose; adding methyl chloride and propylene oxide for etherification reaction; successively adding a crosslinking agent and an aqueous fulvic acid solution for reaction; adding potassium naphthylacetate, sodium sulfite and sodium molybdate and then drying. In the present invention, during the etherification reaction of alkalized cellulose, a crosslinking agent prepared by mixing sodium tetraborate and sodium tripolyphosphate is added for crosslinking reaction, which can reduce the content of water-soluble groups of the prepared hydroxypropyl methylcellulose, achieving the effect of increasing the viscosity of hydroxypropyl methylcellulose. Coating the crop surface with the high-viscosity hydroxypropyl methylcellulose not only has a better surface glazing effect, but also can increase its sugar content.

The invention relates to the field of building material construction, and discloses a construction method of foam lightweight concrete suitable for long-distance pipeline transportation, and the construction method comprises the following steps: selecting a high-pressure hose with the pipe diameter of DN 100mm-DN 150mm as a pumping pipeline; before the foam lightweight concrete is conveyed, a hydroxypropyl methyl cellulose aqueous solution with the mass concentration of 0.05%-0.15% is used for pre-wetting the pumping pipeline, and a lubricating layer is formed on the inner wall of the pumping pipeline; and the foam lightweight concrete is conveyed to a construction area through the pumping pipeline to be poured. According to the method, through construction process improvement (pipeline lubrication and buffer pouring), the foam light soil can be transported for a long distance (larger than or equal to 500 m).

The invention belongs to the technical field of oil exploitation, and particularly relates to an acid liquor thickening agent as well as a preparation method and application thereof. The synthesis method comprises the following steps: adding butylene glycol, 4, 4 '-diaminostilbene-2, 2'-disulfonic acid, (2-acrylamido ethyl) phosphonic acid, monopotassium phosphate and deionized water into a first reactor, uniformly stirring, and adjusting the pH value to 7-8; (3-acryloyloxypropyl) tri (trimethylsiloxy) silane, deionized water, hydroxypropyl methyl cellulose, OP-10 and monopotassium phosphate are sequentially added into a second reactor, and the pH is adjusted to be 7-8; adding an initiator into a high-position dropwise adding tank, dropwise adding the initiator into a second reactor, quickly adding the mixed liquid in the first reactor when the viscosity begins to rise, heating, and carrying out heat preservation reaction to obtain viscous liquid; and drying and granulating to obtain the product. The invention has the advantages of simple synthesis, high apparent viscosity, strong shear resistance, good salt-resistant and hardness-resistant effects, and good drag reduction effect.

The invention discloses a preparation method of a cellulose ether grafted concrete slurry purifying agent. The preparation method is characterized by comprising the following steps: (1) mixing and stirring urea, deionized water and hydroxypropyl methyl cellulose ether into transparent mucus; (2) adding a silane coupling agent, N, N-methylene bisacrylamide and a polyether monomer, and continuously stirring uniformly; (3) preparing three dropwise adding solutions and a polymerization inhibitor solution; (4) simultaneously dropwise adding the three dropwise adding liquids into the material obtained in the step (2) at a constant speed; and (5) keeping the temperature after dropwise adding, adding the polymerization inhibitor solution obtained in the step (3), and supplementing a proper amount of water to obtain the cellulose ether grafted concrete slurry purifying agent. The urea solution is used for preventing the agglomeration phenomenon of the cellulose ether in the synthesis process, and meanwhile, the coupling agent is used for connecting cellulose ether molecules to molecular side chains; the macromolecules connected with the cellulose ether structure can provide steric hindrance, so that the fullness degree of cement paste is improved, and the paste extraction effect is achieved.

In some embodiments of the present disclosure, a solid dispersion is provided, comprising: lurasidone or its pharmaceutically acceptable salt and a carrier. The material of the carrier comprises polyvinyl acetate phthalate (PVAP), polyvinyl alcohol (PVA), cellulose acetate phthalate (CAP), mesoporous silica, hydroxypropyl methycellulose (HPMC), polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, acrylic resin, hydroxypropyl cellulose (HPC), povidone, copovidone, ethyl cellulose, polyoxyethylene glycol, hypromellose acetate succinate (HPMCAS), hypromellose phthalate (HPMCP), or a combination thereof.

The invention provides a new energy automobile battery flexible disassembling adhesive and a preparation method thereof, and belongs to the technical field of new energy automobile batteries, the flexible disassembling adhesive comprises the following components by weight: 45-50 parts of deionized water; 8 to 10 parts of gamma-butyrolactone; 5 to 8 parts of propylene glycol methyl ether acetate; 2 to 3 parts of microencapsulated lipase; 2 to 3 parts of nano cellulose immobilized protease; 6 to 8 parts of urea peroxide; 0.5 to 1 part of nano manganese dioxide; 0.7 to 1.1 parts of a sodium citrate / sodium lactate buffer solution; 1.5 to 2.5 parts of polyvinylpyrrolidone K30; 0.8 to 1.2 parts of hydroxypropyl methyl cellulose; 0.05 to 0.1 part of a graphene oxide nanosheet; 0.5 to 0.8 part of a benzotriazole derivative; 0.1 to 0.3 part of sodium molybdate; 6 to 8 parts of sorbitol; and 5-7 parts of ascorbic acid. The flexible disassembly adhesive solves the problems of low efficiency, serious environmental pollution, high safety risk and low material recovery rate in traditional battery disassembly.

The invention discloses an air compressor filter device for hydroxypropyl methyl cellulose production, and belongs to the technical field of compressed air filtration, the air compressor filter device comprises a box body, an ash removal device is assembled in the box body, the ash removal device comprises a filter screen II, the interior of the box body is fixedly connected with a hydraulic bin I, and the hydraulic bin I is fixedly connected with a hydraulic pump. A piston at one end in the first hydraulic bin is slidably connected with a first hydraulic rod, a piston at the other end in the first hydraulic bin is slidably connected with a second hydraulic rod, and the tail end of the second hydraulic rod is rotatably connected with a first rotating rod in a penetrating mode. According to the device, the dust removing device is arranged, through cooperation of a first rotating rod, a barrel brush and other structures, hydroxypropyl methyl cellulose dust is removed and collected into the storage box after filtering is completed, and meanwhile it is guaranteed that the dust in the storage box cannot be blown up again to be attached to a filter screen in the filtering process; therefore, the problem that ash removal operation is complex and tedious is solved, and the effects that the filter screen is smooth and dust is convenient to remove and recycle are achieved.

The invention relates to the technical field of green building materials, in particular to phase-change energy-storage thermal insulation mortar and a preparation method of the phase-change energy-storage thermal insulation mortar. 25 to 40 parts of methyl palmitate; 120 to 180 parts of hydrophobic perlite; 8 to 15 parts of expanded graphite; 3-6 parts of phosphorus sheet-shaped aluminum nitride; 180 to 250 parts of sulphoaluminate cement; 60 to 100 parts of volcanic rock micro powder; 0.3 to 0.8 part of hydroxypropyl methyl cellulose; 0.6 to 1.2 parts of a polycarboxylic acid water reducing agent; 2 to 4 parts of nano aluminum oxide; 0.8 to 1.5 parts of propyl gallate; and 1-2 parts of zinc borate. Through the proportion design of the antioxidant flame-retardant microcapsules and the lightweight composite aggregate, the problems of poor thermal conductivity and insufficient durability of a traditional phase change material are solved. Through phase change material loading, interface modification and multi-component cooperative regulation, the thermal insulation performance, energy storage efficiency and structural stability are remarkably improved, and the material is suitable for the fields of building energy saving, intelligent temperature control and the like.

Provided is a method of producing an esterified cellulose ether having improved flowability of the powder, where the method can reduce production of fine powder in the precipitated esterified cellulose ether. The method is a method of producing hydroxypropyl methylcellulose acetate succinate powder which essentially includes an esterification reaction step, a precipitation step, a washing / recovering step and a drying step, wherein the precipitation step is a step of extruding the reaction solution, prepared in the esterification reaction step, into water from extruding ports of an extruder to form a precipitate, and then mincing the resultant precipitate to obtain a suspension containing hydroxypropyl methylcellulose acetate succinate particles.

The invention belongs to the technical field of shield construction, and particularly relates to a nano-based shield muck improving foaming agent as well as a preparation method and application thereof. Specifically, in the field of shield tunneling foaming agents, nano silicon dioxide is innovatively adopted as a powerful foam stabilizer, the powerful foam stabilizer, hydroxypropyl methyl cellulose, polyvinyl alcohol and coconut oil diethanolamide jointly form a powerful foam stabilizing system, and dodecyl dimethyl amine oxide and sodium alpha-olefin sulfonate serve as auxiliary foaming components to expand environmental adaptability. And the muck improved foam with small volume, strong deformability and good stability is formed. Foam prepared by the foaming agent provided by the invention has the advantages of moderate foaming ratio, long half-life period, fine foam, small volume and the like, that is, the foaming agent can continuously and effectively play a role in improving the muck, and can effectively meet the requirements on the performance of the muck in the whole shield construction process, so that the foaming agent has good practical application value.

The invention relates to the field of fertilizers, in particular to a method for preparing an organic fertilizer by anaerobic fermentation of tylosin dregs, which comprises the following steps: (1) electron beam irradiation treatment; (2) adding the mushroom dreg powder into an ethanol solution, and treating with a coupling agent KH-550 to obtain aminated mushroom dregs; (3) preparing to obtain phosphorylated hydroxypropyl methyl cellulose; (4) mixing the aminated mushroom dregs and the phosphorylated hydroxypropyl methyl cellulose in an organic solvent for reaction to obtain phosphorylated hydroxypropyl methyl cellulose composite active mushroom dregs; and (5) composting to finally obtain the organic fertilizer. According to the organic fertilizer and the preparation method thereof, the tylosin mushroom dregs are subjected to modification treatment, anaerobic fermentation treatment and aerobic fermentation treatment, so that the content of antibiotic tylosin in the finally prepared organic fertilizer is greatly reduced, the industrial requirements can be met, the content of organic matters in soil can be increased, the soil structure can be improved, and the soil fertility can be improved; the plant growth is facilitated.