38results about How to "Strong stickiness" patented technology

The invention discloses a method for strengthening and toughening a silicon nitride-based ceramic spring by using fibers, which belongs to the technical field of ceramic springs, and comprises the following steps: preparing slurry, preparing a spring preform, burning off a mold, and carrying out suspension burning. The preparation of the slurry comprises the following steps: putting ficus pumila seeds and deionized water into a stirrer, stirring at 55-65 DEG C for 5-8 hours, and filtering to obtain pectin; adding a dispersant polyacrylamide into the pectin solution, and uniformly stirring to obtain a pectin premixed solution; adding silicon nitride powder into the pectin premixed solution, and uniformly stirring to obtain a silicon nitride premixed solution; stirring the silicon nitride premixed liquid at 35-45 DEG C, adding citric acid at the same time, and obtaining slurry after the addition is finished; the fiber-toughened silicon nitride-based ceramic spring prepared by the preparation method disclosed by the invention is good in toughness and high in strength and rigidity.

The label stripper capable of preventing the soft backing paper from rolling materials comprises a base, the top of the base is fixedly connected with a box body, the top of the box body is fixedly connected with a mounting frame, an unwinding assembly is arranged on one side of the surface of the mounting frame, a limiting groove is formed in one side of the surface of the box body and located below the unwinding assembly in an inclined mode, and the limiting groove is fixedly connected with the box body. A limiting sliding block is slidably connected into the limiting groove. Through the arrangement of the limiting sliding block, the spring, the buffering shaft, the stripping plate and other assemblies, when the label stripper operates and the winding shaft drags the unfolded label tape, the buffering shaft drives the limiting sliding block to slide in the limiting groove, the unfolded label tape is buffered through the elasticity of the spring, the label tape is prevented from being snapped due to too large tension, and the service life of the label stripper is prolonged. The adhesive on the back face of the label tightly attached to the stripping plate is heated through the heating plate, so that the adhesive is softened, the label can be stripped more easily, the viscosity of the softened glue is higher, and the label is pasted more firmly.

The invention discloses a preparation method of an oral antibacterial periosteum, and relates to the technical field of periosteum. Comprising the following steps: step 1, preparing raw materials; 2, pig peritoneum pretreatment: removing large-area fat from the pig peritoneum, trimming miscellaneous edges, and cleaning with pure water until no obvious attachments exist, so as to obtain a pig peritoneum A; step 3, degreasing treatment: putting the pig peritoneum A into a sodium hydroxide solution for degreasing cleaning, and then sequentially performing pure water cleaning and isopropanol cleaning to obtain a pig peritoneum B; 4, decellularization treatment: putting the pig peritoneum B into a sodium chloride solution for decellularization cleaning, and then cleaning with pure water to obtain a pig peritoneum C; step 5, cleaning: further cleaning the pig peritoneum C with pure water, and then performing ultrasonic cleaning to obtain pig peritoneum D; 6, the pig peritoneum D is flatly laid and freeze-dried, and a basic periosteum is obtained; and step 7, uniformly coating the surface of the basic periosteum with the carboxymethyl chitosan solution, spreading, and freeze-drying to obtain the antibacterial periosteum.

The invention belongs to the technical field of OCA optical cement, and discloses optical cement and a preparation method thereof. The optical adhesive is prepared from the following raw materials in parts by weight: 75 to 100 parts of acrylate prepolymer, 15 to 30 parts of diluent, 5 to 8 parts of acrylic acid, 10 to 20 parts of isobornyl methacrylate, 10 to 20 parts of silica sol, 2 to 3 parts of initiator, 0.5 to 3 parts of cross-linking agent and 0.5 to 3 parts of antioxidant. The acrylic resin is formed by polymerizing a hard monomer, a soft monomer and a functional monomer under the action of a photoinitiator. The optical adhesive prepared by the invention has good viscidity, is not easy to remain on a laminated display material, has high elongation and relatively good stripping property, meanwhile, the light transmittance and stability of the optical adhesive are improved by polymerization of the raw materials, and the optical adhesive is high in transparency, low in haze, free of shrinkage during curing and good in weather resistance.

The invention provides a preparation method of UV viscosity-reducing glue and a preparation method of a UV viscosity-reducing adhesive tape, and relates to the technical field of adhesives. The preparation method comprises the following steps: firstly, carrying out a first-step polymerization reaction to obtain an acrylate main adhesive; modifying the acrylate main adhesive by using a monomer containing an isocyanate group and two double bonds through a second-step reaction, namely introducing high-density double bonds into the acrylate main adhesive by using a reaction between an active functional group on a main chain and the isocyanate group to obtain a modified acrylate main adhesive solution; and finally, mixing the modified acrylate main glue solution with other additives such as a cross-linking agent, a photoinitiator and the like to obtain the UV viscosity-reducing glue. The viscosity of the UV viscosity-reducing adhesive tape prepared by adopting the UV viscosity-reducing adhesive water prepared by the invention is large enough before UV irradiation, a precise wafer in a high-speed cutting process can be well fixed, the viscosity of the UV viscosity-reducing adhesive tape is small enough after UV irradiation, automatic picking is convenient, and the adhered surface of a chip is completely free of residual adhesive.

The invention provides a crystal processing method which is used for processing equipment to cut a crystal, the processing equipment comprises a cutting tool and a bearing film, the method comprises the following steps: the crystal has a front surface and a back surface which are oppositely arranged, the front surface of the crystal is provided with a first protective layer bonded by wax, and the back surface of the crystal is provided with a second protective layer bonded by wax; forming a cut unit; the cut unit is bonded to the bearing film, and the bearing film is located on the back face of the cut unit; placing the bearing film adhered with the cut unit on processing equipment, and controlling a cutting tool to cut the cut unit to form cut particles; and taking down the bearing film and the protective layer on the cut particles to form crystal particles. The protective layers bonded by wax are arranged on the two surfaces of the crystal, so that the fracture resistance of the crystal in the cutting process can be remarkably enhanced, and edge collapse, fragmentation or internal micro-cracks generated in the cutting process of the crystal are greatly reduced, thereby directly improving the processing yield of crystal particles.

The invention discloses an application of a secretory curl-associated protein 2 gene as a new target for treating uterine scars, the secretory curl-associated protein 2 gene (sFRP2) promotes the progress of the uterine scars, interferes, silences and inhibits the uterine scars, and the sFRP2 is knocked out, so that the occurrence and development of the scar uterus can be relieved, the pregnancy rate of women can be increased, and the adverse pregnancy outcome can be reduced. In order to further improve the curative effect that sFRP2 gene expression is inhibited by sFRP2-targeted small interfering RNA (issFRP2) so as to inhibit uterine scar formation, ionizable lipid, distearoyl phosphatidylcholine (DSPC), cholesterol and 1, 2-dimyristoyl-rac-glycerol-3-methoxy polyethylene glycol (DMG-PEG) are mixed and dissolved in ethanol according to a certain molar ratio, issFRP2 is dissolved in a citric acid buffer solution, and the issFRP2-targeted small interfering RNA (issFRP2) is added into the citric acid buffer solution so as to obtain a mixed solution; an ethanol phase and a water phase are mixed through a microfluid device, and the mixed solution is dialyzed in a PBS solution for two hours to prepare lipid nanoparticles. And then mixing the polycarbophil, the poloxamer and the lipid nanoparticles to prepare the composite hydrogel. The hydrogel can locally release sisFRP2 in the uterus, inhibit fibrosis, reduce collagen deposition and repair uterine scars. The hydrogel is good in biocompatibility and noninvasive, can realize slow release of the medicine, avoids repeated administration, has no obvious side effect on a maternal body and a fetus, and can also be used for other fibrosis-related diseases.

The utility model discloses a pelvic support external fixation dressing plaster, and particularly relates to the technical field of medical supplies, the pelvic support external fixation dressing plaster comprises a dressing plaster body, an anti-allergy plaster is connected above the dressing plaster body, medical yarn cotton is connected to the middle position below the dressing plaster body, first release paper is adhered to the position, close to the left side, below the medical yarn cotton, and a second release paper is adhered to the position, close to the right side, below the first release paper. Third release paper and second release paper are correspondingly bonded to the positions, close to the right side, of the lower portion of the medical yarn cotton. A first support opening and a second support opening are transversely formed in the dressing patch body, the inner layer of the dressing patch is fixed yarn cotton, high in hygroscopicity and capable of absorbing exudate of a support needle opening, the outer layer of the dressing patch is an allergy-free patch high in viscidity and good in air permeability, the comfort of a patient is improved, the dressing patch has the advantages of being breathable, allergy-free and high in hygroscopicity, the dressing process is simple, and the dressing patch is convenient to use. The multifunctional nursing bed is convenient for self-home nursing, saves time, manpower and material resources, reduces occupied hospital resources, is low in price, and can reduce economic burden.

The utility model relates to the technical field of granulation molds, and discloses an anti-blocking animal feed granulation mold which comprises a mold body, a motor is fixedly connected to the outer side of the mold body, a collecting frame is movably connected to the bottom of the mold body, a mold cover is movably connected to the top of the mold body, and an anti-blocking device is arranged in the mold body. After mixed feed is rolled into blocks, the prepared feed is extruded in time through a hydraulic rod on a pressing plate, the situation that the feed stays on a mold for a long time, the viscosity is higher, demolding is difficult, and blocking is caused for a long time is avoided, the feed can be extruded in time, and the blocking situation is greatly reduced.

The invention discloses a method for removing viruses and endogenous and exogenous bacteria from small yellow ginger, and relates to the technical field of virus-free seedling cultivation, and the method comprises the following steps: S1, selecting ginger blocks which grow robustly and fleshy and are free of damage and plant diseases and insect pests as explant materials, and placing the ginger blocks in a dark environment at 28-30 DEG C for accelerating germination; s2, when the ginger buds grow to 2-3cm, selecting healthy and full ginger buds, cutting off the ginger buds, washing the ginger buds with running water, and disinfecting the ginger buds; s3, under a sterile condition, transferring the disinfected ginger buds into a primary culture medium, screening out the ginger seedlings with bacteria by adopting a high-low temperature method, and ending culture when the ginger buds grow 1-3 coleoptiles; s4, stripping leaf coleoptiles of the screened healthy and pollution-free ginger buds, cutting off 1-3mm stem tips from growing points, and transferring the stem tips into a clumpy bud induction culture medium for multiplication culture at the culture temperature of 20-25 DEG C and the illumination intensity of 2500 LUX for 8-15 days; s5, the clustered seedlings obtained after proliferation are cut into single seedlings from the base parts, the single seedlings are placed in a rooting culture medium, and virus-free plants are obtained and cultured for 30-45 d at the culture temperature of 22-25 DEG C and the illumination intensity of 3000 LUX.

The present application relates to waterproof construction technology field, specifically to a kind of waterproof roll and its construction method.The waterproof roll includes roll body, and roll body is equipped with first connecting portion and / or second connecting portion;First connecting portion is connected with the second connecting portion of adjacent waterproof roll, and second connecting portion is connected with the first connecting portion of adjacent waterproof roll;First connecting portion includes first base material, at least two insertion slots in first base material and recess between adjacent two insertion slots, and second connecting portion includes second base material, at least two insertion parts in second base material and convex part between adjacent two insertion parts, the depth direction of insertion slot and recess is parallel to the thickness direction of roll body, insertion slot and insertion part are connected with stopper, recess and convex part are connected with stopper;Recess bottom and the top surface between convex part are equipped with adhesive layer, and adhesive layer is the structure layer that metal dense net and adhesive are made into by electromagnetic induction welding.

The invention relates to a preparation method and application of a binary formula Dai pottery pug. The preparation method comprises the following steps: taking Dai pottery clay in the HongRiver basin, Wuhua soil in the HongRiver county and charcoal dust, and exposing and weathering the Dai pottery clay and the Wuhua soil for at least three months; the mass content of SiO2 in the Dai clay in the HongRiver basin is not less than 50%, the mass content of Al2O3 is not less than 15%, the mass content of Fe2O3 is not less than 10%, and the ignition loss is less than 10%; the content of SiO2 in the Wuhua soil in the Honghe county is 72%-82%, the content of Al2O3 is 9%-12%, and the content of Fe2O3 is 3%-5%; the preparation method comprises the following steps: adding water into the Dai pottery clay and the Wuhua soil according to the mass ratio of the Dai pottery clay to the Wuhua soil to the charcoal powder of (100-120): (40-50): (8-10), fully soaking, then carrying out ball milling, sieving slurry, then adding the charcoal powder, uniformly stirring, squeezing mud, draining, pugging and exhausting. According to the invention, the throwing and compression molding performances of the Dai pottery clay can be improved, the sintering temperature and the compactness and strength of the structure of the Dai pottery clay can be improved, and the burn out rate can be reduced.

The present application relates to a kind of industrial silicon composite reducing agent prepared with fruit skin humus, and belongs to the technical field of composite reducing agent for industrial silicon smelting.The fruit skin is cut into fruit skin particles, water is added to cover the fruit skin particles, then yeast powder is added and sealed for fermentation to obtain fruit skin humus;non-caking coal powder, fruit skin humus, starch, wood powder and microsilica powder are mixed and then ground to clump to obtain a mixture;the mixture is pressed to form a cylindrical pellet embryo;the cylindrical pellet embryo is placed in an argon environment and subjected to microwave calcination, and then cooled to room temperature in the furnace to obtain an industrial silicon composite reducing agent pellet.The industrial silicon composite reducing agent pellet has a strength of 10-14 MPa, a calorific value of 7200-8000 calories / gram, and a caking index of 49-72, which meets the preparation requirements of industrial silicon pellet reducing agent.

The utility model belongs to the technical field of material storage, and particularly provides a high-low-pressure double-air-source intelligent bin cleaning device which comprises a bin, a high-pressure air blowing assembly and a low-pressure air blowing assembly. A plurality of high-pressure air inlets and a plurality of low-pressure air inlets are formed in the stock bin, and the high-pressure air inlets and the low-pressure air inlets are arranged in a staggered mode. The high-pressure air blowing assembly is connected with the stock bin at the high-pressure air inlet; and the low-pressure air blowing assembly is connected with the stock bin at the low-pressure air inlet. According to the high-pressure and low-pressure double-gas-source intelligent bin cleaning device, arch breaking is conducted through high-pressure and low-flow gas, hardened materials are scattered, continuous circulating purging is conducted through the low-pressure and high-flow gas, and the effects of prevention and blockage cleaning are achieved. High-pressure gas and low-pressure gas are combined, so that the utilization rate of the high-pressure gas can be greatly reduced, and the problem that materials with high viscosity are blocked in the discharging process is effectively solved.

The utility model relates to a surface heat-preservation composite coating structure of a steel pipe, which comprises a primer layer, a high-temperature-resistant ceramic particle heat-preservation layer, a ceramic particle heat-insulation heat-preservation layer and a protective layer, the primer layer is used for being arranged on the outer side surface of a steel pipe in a coating mode, the high-temperature-resistant ceramic particle heat preservation layer is arranged on the primer layer in a coating mode, the ceramic particle heat insulation layer is arranged on the high-temperature-resistant ceramic particle heat preservation layer in a coating mode, and the protective layer is arranged on the ceramic particle heat insulation layer in a coating mode. The surface heat preservation composite coating structure of the steel pipe has the functions of cracking prevention, hollowing prevention, falling prevention and the like, and is good in heat preservation effect, high in impact resistance and long in service life.

The utility model relates to the technical field of waste treatment, and discloses a screening device for industrial solid waste treatment, which comprises a screening box, the top of the screening box is fixedly provided with a feed hopper, the left upper side and the right lower side of the screening box are respectively provided with a solid slag discharge port and a waste liquid discharge port, and a screening assembly is arranged in the screening box; and the screening assembly comprises a transverse moving seat arranged in the screening box. When the solid waste screening device is used, solid waste is added into the screening box through the feeding hopper and falls into the screening net frame, the waterproof motor drives the screening net frame to rotate, centrifugal force can be applied to the surface of the solid waste, and liquid with high viscosity on the surface of the solid waste can be thrown out under the action of the centrifugal force; when the whole device is used for screening industrial solid waste, the industrial solid waste screening device has the advantage of being high in applicability, screened solid is reserved in the screening net frame, and screened liquid can be collected from a waste liquid discharging opening.

The utility model relates to the technical field of handle sleeves, in particular to a finger-shaped handle sleeve, the top of the finger-shaped handle sleeve is fixedly connected with a binding belt tightening piece, the binding belt tightening piece is fixedly provided with a binding belt, and the other end of the binding belt is connected with a binding belt locking piece in a sliding mode. According to the binding belt tightening device, a hand is held on the finger-type handle sleeve, the rotary knob rod is rotated anticlockwise to drive the rotating rod and the ratchet wheel to rotate, and when the ratchet wheel rotates, the pawl limits the reverse rotation of the ratchet wheel to control the tightening force of the binding belt. Furthermore, a push rod is arranged on the pawl, when the finger-type handlebar grip stops working, the pawl slides out of limiting teeth of the ratchet wheel by pressing the push rod, the ratchet wheel rotates under the resilience force of the binding belt, then the binding of the binding belt to the hand is released, and the finger-type handlebar grip is convenient to disassemble and assemble.

The invention belongs to the technical field of petrochemical engineering, and particularly relates to composite modified hydraulic asphalt and a preparation method thereof. The hydraulic asphalt is prepared from the following components in parts by mass: 100 parts of petroleum asphalt, 5 to 10 parts of SBS modifier, 15 to 25 parts of rubber modifier, 15 to 25 parts of cosolvent and 0.1 to 0.3 part of stabilizer. According to the invention, a scheme of compounding two types of modifiers, namely the rubber powder and the SBS, is adopted, the product process is simple, the structure is stable, and the composite modified hydraulic asphalt disclosed by the invention has a specific three-dimensional elastic net-shaped structure through specific stabilizer composition and a mass ratio of a styrene chain segment to a butadiene chain segment in the SBS modifier; and the adhesive can meet the requirements of special environments, and is relatively high in viscosity. The production is simple, the high-low temperature performance is excellent, the quality of the hydraulic asphalt is improved, and the application performance of the hydraulic asphalt in a special environment is ensured.

The utility model discloses an anti-falling silicone-adhesive-free liquid crystal display module which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid, OCA optical cement and a cover plate which are sequentially arranged from bottom to top, and the lower substrate is longer than the upper substrate and extends outwards to form a single-layer area. Buffer glue is arranged on the upper surface of the portion, located in the single-layer area, of the lower substrate, the buffer glue abuts against the cover plate, and the buffer glue is UV elastic glue. And the UV elastic glue is high in compactness, has waterproof capability and can protect the ITO circuit. The UV elastic glue is good in elasticity and low in stress, and no obvious rebound stress exists after the UV elastic glue is attached to the cover plate and pressed. Due to the adoption of the UV curing mode, molecules of the UV elastic glue are fully cured and are not separated out any more, and therefore the problem that the whole machine installation fails due to the fact that silicone oil is separated out to affect the dyne value of cover plate printing ink is solved. The UV elastic glue can be dispensed at one time, the scheme of dispensing UV glue and silicone glue twice at present is replaced, the efficiency is greatly improved, and the cost is saved.

The invention relates to the technical field of waterproof construction, in particular to a waterproof roll and a construction method thereof. The waterproof coiled material comprises a coiled material body, and the coiled material body is provided with a first connecting part and / or a second connecting part; the first connecting part is connected with the second connecting part of the adjacent waterproof coiled material, and the second connecting part is connected with the first connecting part of the adjacent waterproof coiled material; the first connecting part comprises a first base material, at least two inserting grooves formed in the first base material and a groove formed between every two adjacent inserting grooves, and the second connecting part comprises a second base material, at least two inserting parts formed in the second base material and a protruding part arranged between every two adjacent inserting parts. The depth directions of the slots and the grooves are parallel to the thickness direction of the coiled material body, the slots are connected with spigots of the inserting parts in a matched manner, and the grooves are connected with spigots of the protruding parts in a matched manner; a bonding layer is arranged between the groove bottom of the groove and the top surface of the protruding part, and the bonding layer is a structural layer formed by welding a metal dense net and a bonding agent through electromagnetic induction.

Relates to the field of vegetable oil production, and discloses a water extraction method oil discharge device which comprises an oil extraction machine, a feed port arranged on one side of the upper portion of the oil extraction machine, a smashing unit arranged on the lower portion of the feed port and used for smashing oil materials, a water pipe arranged in the oil extraction machine and a nozzle arranged on the water pipe. The stirring unit is arranged in the oil extraction machine, is positioned below the nozzle and is used for fully stirring raw materials in the oil extraction machine; the discharging unit is arranged at the bottom of the oil taking machine, is far away from one side of the feeding port and is used for discharging processed oil and oil residues, the discharging unit comprises a mounting plate arranged at the bottom of the oil taking machine, and discharging ports used for discharging oil are formed in the positions, corresponding to the first baffle and the second baffle, of the oil taking machine. The device is high in automation degree, time-saving, labor-saving, controllable in process parameters, high in oil yield and good in oil product quality.

The application provides a tunnel center drainage ditch and inverted arch filling integrated construction method, which comprises the following steps: step 1) completing inverted arch lining construction; step 2) installing horse stool supports on the inverted arch lining at least at two positions; step 3) constructing a combination of formwork net and steel bars; step 4) installing the combination on the horse stools at the two positions in step 2); step 5) installing horse stool I for supporting the front section of the tunnel center water ditch pouring formwork; step 6) installing the tunnel center water ditch pouring formwork in the combination; step 7) installing center drainage ditch cover plate steel bars on the two side center water ditch body steel bars; step 8) installing end block formwork; step 9) pouring inverted arch filling concrete; step 10) pouring center drainage ditch concrete; step 11) continuously pouring inverted arch filling concrete; step 12) continuously pouring center drainage ditch concrete; step 13) concrete moisture and temperature preservation and maintenance; step 14) demolding; and step 15) performing circulation construction.

The invention relates to the field of pressure gas cylinder processing and production, in particular to an IV-type cylinder pressure container inner container and a forming process thereof. The invention provides a forming process of a pressure container inner container, which comprises the following steps: adhering a glue film to the surface of a metal valve seat, injecting a plastic raw material into a mold, and carrying out rotational molding to obtain the pressure container inner container, the adhesive film comprises a bonding film and an adhesive layer arranged on one side of the bonding film, the temperature of rotational molding is larger than or equal to the viscosity onset temperature of the bonding film and smaller than or equal to the decomposition temperature of the bonding film, the adhesive layer is attached to the surface of the metal valve seat, the viscosity temperature interval of the adhesive layer is smaller than or equal to 35 DEG C, and the thickness of the adhesive layer accounts for 10%-70% of the thickness of the adhesive film. The adhesive film formed by the adhesive layer and the adhesive film is used for the forming process of the pressure container, the adhesive film can be adhered to the valve seat by utilizing the adhesive layer in the adhesive film in a normal-temperature or low-temperature environment, and the adhesive property between the inner container and the valve seat is remarkably improved by utilizing the adhesive film.

The invention relates to a preparation method of low-GI rice noodles and the low-GI rice noodles, and the method comprises the following steps: mixing rice flour, corn starch and sweet potato powder in proportion to obtain mixed powder; adding water into the mixed powder, stirring, and carrying out hydration treatment to obtain compound milk; sequentially gelatinizing, extruding and forming the compound milk to obtain fresh wet rice noodles; sequentially aging and drying the fresh and wet rice noodles to obtain the low-GI rice noodles. The GI value of the finished rice flour is reduced by adding the southern potato flour into the rice flour, meanwhile, the taste of the rice flour can be improved by adding the southern potato flour, the gel strength of the rice flour is remarkably improved, the breaking rate of the rice flour is reduced, the rice flour is smoother and easy to digest, and the problems that existing rice flour is high in GI value and poor in taste flexibility are effectively solved.

This invention relates to a method for modifying waste graphite materials, the resulting modified graphite materials, and their applications. The method includes the following steps: (1) mixing a transition metal compound and a carbon material with a solvent to obtain a composite interface layer precursor; (2) adding purified graphite to the composite interface layer precursor obtained in step (1) for surface coating, heating, and forming a gel; (3) subjecting the gel obtained in step (2) to drying, grinding, and heat treatment sequentially to obtain a modified graphite material; the carbon material includes phenolic resin. This invention uses a sol-gel method for coating. The composite interface layer coated recycled graphite anode material is based on carbon coating, with the addition of transition metal oxides, and is uniformly dispersed on the particle surface by the sol-gel method. This preparation method is simple and safe, and the modified graphite material obtained has high and stable capacity performance as an anode material for lithium-ion batteries.

The invention relates to the technical field of biomedical materials and application thereof in tissue engineering, in particular to injectable piezoelectric hydrogel and a preparation method thereof.The hydrogel comprises polyvinyl alcohol, polyacrylic acid, polydopamine and I-type collagen and further comprises sodium hydroxide, a cross-linking agent, a catalyst and an initiator, finally, the injectable polyvinyl alcohol / polyacrylic acid / polydopamine hydrogel is obtained, and the postoperative rehabilitation effect of anterior cruciate ligament reconstruction can be remarkably improved.

The invention discloses a pressure-sensitive adhesive, a preparation method thereof and a pressure-sensitive adhesive tape. The pressure-sensitive adhesive comprises the following raw materials: 40-60 parts of 2-ethylhexyl acrylate; 25 to 50 parts of butyl acrylate; 10 to 20 parts of glycidyl methacrylate; 1-10 parts of acrylic acid; 1 to 10 parts of 2-hydroxyethyl methacrylate; 0.1 to 1.0 part of dodecyl mercaptan; the organic silicon polyether copolymer is selected from the group consisting of OFX-3667, BY16-201, OFX-5043 and OFX-0400, and the organic silicon polyether copolymer is selected from the group consisting of OFX-3667, BY16-201, OFX-5043 and And 0.1 to 5.0 parts of an initiator. The pressure-sensitive adhesive disclosed by the invention has the characteristics of strong viscosity, good waterproofness, easiness in processing and the like, and can be widely applied to manufacturing of various products such as adhesive tapes, labels and the like.

A method for preparing a binary formula for Dai pottery clay and its application is disclosed. The method involves taking Dai pottery clay from the Honghe River basin, five-colored clay from Honghe County, and charcoal powder. The Dai pottery clay and five-colored clay are sun-dried and weathered for at least three months. The Dai pottery clay from the Honghe River basin has a SiO2 content of not less than 50%, an Al2O3 content of not less than 15%, an Fe2O3 content of not less than 10%, and a loss on ignition of less than 10%. The five-colored clay from Honghe County has a SiO2 content of 72-82%, an Al2O3 content of 9-12%, and an Fe2O3 content of 3-5%. The method involves soaking the Dai pottery clay and five-colored clay in water until fully saturated, then ball-milling them. The slurry is sieved, and then charcoal powder is added. After stirring evenly, the clay is pressed to drain water and then kneaded to remove air. This invention can improve the throwing and molding performance of Dai pottery clay, increase the sintering temperature and the density and strength of its structure, and reduce the burn-off rate.

The utility model discloses a small pipeline fixing sticker for sleep monitoring, which is characterized by comprising a body, and the body is formed by sequentially stacking a soft and elastic substrate, a bonding layer and release paper from bottom to top; the middle part of the body is a perforation part, the perforation part is provided with a perforation, the parts of the body on the left and right sides of the perforation part are respectively defined as a left side part and a right side part, and the widths of the left side part and the right side part are smaller than the width of the perforation. The small fixing adhesive tape has the advantages of being simple in structure, convenient to use, environment-friendly, non-toxic and the like, and can be applied to fixation of thin pipelines in sleep monitoring.

The invention discloses emulsified modified asphalt capable of being used as micro-surfacing of RAP fine materials and a preparation method of the emulsified modified asphalt. The emulsified modified asphalt comprises the following raw material components in parts by mass: 65-75 parts of matrix asphalt, 2-4 parts of a modifier, 0.1-0.2 part of a stabilizer, 5-10 parts of a diluent, 2-4 parts of a regenerant, 1-3 parts of a penetrant, 1-2 parts of a wetting agent, 1-2 parts of an emulsifier and a proper amount of hydrochloric acid. The emulsified modified asphalt prepared from the raw materials is stable in storage, can effectively wet aged asphalt on the surface of RAP, efficiently permeates into the deep layer of the aged asphalt, efficiently activates the aged asphalt on the surface of RAP at normal temperature, enhances the overall bonding performance of micro-surfacing and prevents diseases such as loosening and particle falling, and the emulsified modified asphalt adopts waste engine oil as a regenerant.