20results about How to "High curing strength" patented technology

The invention relates to a method for solidifying aeolian sand and resisting wind erosion by combining microorganisms with sugar calcium, which is characterized in that a sandy soil body is more sufficiently and efficiently solidified by utilizing a synergistic effect mechanism of combining MICP with sugar calcium, so that the purposes of enhancing the strength of the sandy soil body and resisting natural environment erosion are achieved; in the process of solidifying the sandy soil by combining sugar and calcium with MICP, the sugar and calcium can promote the growth of microorganisms, regulate the reaction environment and contribute to the generation of calcium carbonate precipitates, so that the sandy soil particles play a role in cementation, and meanwhile, the sugar and calcium are dissolved in water to release viscous substances, so that the generated calcium carbonate precipitates are more uniform, and the quality of the soil is improved. The effect of solidifying a sandy soil body is more obvious; the method adopts green and environment-friendly materials, is suitable for reinforcing a large-area sandy soil area, has a very remarkable curing effect, has the excellent characteristic of resisting natural environment erosion, and is widely applied to the fields of sandy soil curing, protection and the like.

The invention relates to the technical field of glass fiber reinforced plastic container processing, and particularly discloses a movable multi-axis linkage large-diameter glass fiber reinforced plastic container production unit and a winding method.The movable multi-axis linkage large-diameter glass fiber reinforced plastic container production unit comprises a moving unit and supports distributed at equal intervals in the circumferential direction, a rotating shell is installed on the moving unit through a motor, and a lifting platform is installed on the supports through lifting modules; the lifting platform is fixedly connected with a fixed frame, the fixed frame is provided with a sliding groove, sliding frames which are uniformly distributed are arranged in the sliding groove of the fixed frame, the sliding frames are provided with a supporting frame, the supporting frame is rotationally provided with symmetrical first rotating rollers, the supporting frame is provided with a limiting mechanism, and the fixed frame is provided with a smearing mechanism. According to the large-diameter glass fiber reinforced plastic container winding device, a finished product can be conveniently demolded outside a plant through splitting of the rotating shell and the support, then the large-diameter glass fiber reinforced plastic container is continuously wound in a partitioned mode through the multiple first sliding frames, and the machining efficiency and the overall strength of the product are improved.

The invention discloses solidified soil prepared from solid waste and a preparation method of the solidified soil, and relates to the technical field of constructional engineering materials. According to the solidified soil prepared from the solid waste, the self-made anti-dispersing agent and the composite curing agent are added, the self-made anti-dispersing agent is prepared by introducing graphene oxide to the surface of pretreated aramid fiber and then generating nano silicon dioxide on the surface in situ, the self-made anti-dispersing agent enters solidified soil components, dispersion is reduced, and therefore the strength of the solidified soil is kept; the composite curing agent comprises modified glass fiber reinforced plastic, sulphoaluminate cement, Portland cement and gypsum powder, the modified glass fiber reinforced plastic is prepared by carboxylating glass fiber reinforced plastic and then coating the carboxylated glass fiber reinforced plastic with a sulfydryl cross-linked polymer, and the modified glass fiber reinforced plastic enters the structure of the cured soil, so that shrinkage deformation is prevented, and the curing strength is enhanced.

The invention provides modified epoxy acrylate, a preparation method thereof, a conductive adhesive, a preparation method and application thereof, the structural formula of the modified epoxy acrylate is # imgabs0 #, R1 is H or CH3, R2 is # imgabs1 #, R3 is long-chain aliphatic hydrocarbon, R4 is # imgabs2 #, R5 in R4 is H or CH3; according to the present invention, the curing strength and the bonding strength can be increased, and the modified epoxy acrylate has the long-chain structure so as to provide the cured modified epoxy acrylate with excellent flexibility, such that the curing strength and the bonding strength can be improved; the conductive adhesive adopting the modified epoxy acrylate system disclosed by the invention has the excellent properties of low-temperature curing, flexibility, excellent heat and humidity resistance, high binding power, relatively good conductivity, low stress and the like.

The invention discloses a cementing material for high-water-content sludge. The cementing material comprises the following components in parts by weight: 25-40 parts of Portland cement, 30-45 parts of lime, 15-30 parts of fly ash, 5-10 parts of modified papermaking black liquid, 10-25 parts of bentonite and 0.5-4 parts of an anti-dispersing agent. The prepared cementing material for the high-water-content sludge can rapidly dehydrate the high-water-content sludge, the curing strength of the high-water-content sludge is improved, resource utilization of dredged sludge is achieved, and pollution is reduced.

The invention relates to the technical field of inorganic adhesive production, and particularly discloses a phosphate adhesive and a preparation method thereof. The phosphate adhesive is prepared by using the low-valence metal oxide and / or the mixed-valence metal oxide as the curing accelerator, and the low-valence metal oxide and / or the mixed-valence metal oxide are / is not directly neutralized with phosphoric acid due to weak alkalinity and have relatively high affinity to positive and negative electric centers; the adhesive has the characteristics that phosphoric acid-copper oxide / ferric oxide is easily catalyzed to generate polymerization reaction, so that the initial reaction temperature is relatively low, and the adhesive prepared by the invention has higher curing strength and less curing accelerator dosage under the condition of the same working life as an adhesive prepared by the prior art; the contradiction between enough sizing time and higher curing strength in the prior art is solved, the preparation method is simple and efficient, industrial production is easy to realize, and the adhesive is wider and more flexible in application.

The utility model relates to the technical field of electronic equipment accessories, in particular to a film pasting box which comprises an upper cover capable of being opened and closed and a box body, the upper cover is provided with a curing lamp assembly, when the upper cover and the box body are defined to be closed, the face, facing the box body, of the curing lamp assembly is a light-emitting face, and the light-emitting face is provided with a plurality of curing light sources. The curing light sources are arranged on the edge of the light-emitting surface. The plurality of curing light sources are arranged at the edge of the light-emitting surface, so that the curved surface edge of the screen can be better irradiated and cured, the problems that the curing difficulty of the curved surface edge of the screen is relatively high, and the film pasting effect is not ideal are effectively solved, the consistency and durability of the film pasting effect can be ensured, and the film pasting effect is further improved.

The invention relates to the technical field of materials, in particular to a tailing treatment method and application of a novel polymer curing agent, and a copolymer composite material has good water resistance, aging resistance and mechanical property. The curing speed is high, and the curing time can be shortened to be within 24 hours under proper conditions; the curing strength is high, and the compressive strength of a cured tailing sample is remarkably improved; and the permeability resistance is good, permeation of water in the tailings is effectively reduced, and leaching of harmful substances is reduced. The paint is environment-friendly, low in VOC (volatile organic compound) emission, biodegradable and pollution-free to the environment.

The utility model relates to the technical field of magnetic line generators, in particular to a low-noise electromagnetic coil which comprises a copper disc coil, a left pressing block and a right pressing block are arranged on the left side and the right side of the copper disc coil respectively, the front side and the rear side of the left pressing block and the front side and the rear side of the right pressing block are fixed through fasteners, and each fastener is composed of a bolt and a nut. The head of the bolt is connected to the outer side of the left pressing block in an embedded buckle mode, external wiring terminals are arranged on the front side and the rear side of the copper disc coil, the thickness of the left pressing block and the thickness of the right pressing block are consistent with the thickness of the copper disc coil, and arc-shaped grooves coaxial with the copper disc coil are formed in the inner side of the left pressing block and the inner side of the right pressing block. The utility model aims to provide the low-noise electromagnetic coil, and aims to realize a fastening structure which effectively reduces the turn-to-turn gap of the coil, improves the curing strength of the coil, reduces the noise of the coil and facilitates the heat dissipation of the coil on the premise of ensuring that the placed coil does not deform.

The invention relates to a water-absorbing and curing composite material suitable for high-water-content sludge and application thereof. The water-absorbing and curing composite material comprises the following raw material components in parts by weight: 40-65 parts of carbide slag, 10-30 parts of mineral powder, 10-25 parts of fly ash, 0.1-5 parts of sodium bentonite, 0.1-6 parts of sodium carboxymethyl cellulose and 0.01-1 part of super absorbent resin. Compared with the prior art, the curing material and the water absorbing material are compounded to cure the sludge, and the sludge is used as roadbed filler, so that the requirements of roadbed engineering can be met, and the problem of resource utilization of the sludge is solved.

The invention discloses a rapidly-cured light-cured pit and fissure sealing agent material and a preparation method thereof. The rapid-curing photo-curing pit and fissure sealing agent material comprises a resin matrix material, a diluent, an inorganic filler, a photo-curing initiator and an anti-hydrolysis agent, the preparation method comprises the following steps: heating and dewatering the inorganic filler and the resin matrix material under a dark condition, and heating the resin matrix material to a molten state; the preparation method comprises the following steps: under a dark condition, mixing and stirring a diluent, a photocuring initiator, an anti-hydrolysis agent, an inorganic filler subjected to heating and water removal treatment and a resin matrix material in a molten state to form homogeneous-phase mucus, and then centrifugally stirring to obtain the photocuring pit and fissure sealing agent material. According to the present invention, the components are subjected to heating water removal treatment and the anti-hydrolysis agent is added, such that the hydrolysis resistance of the material can be significantly improved, the curing strength, the compressive strength and the strong adhesion of the photo-curing pit and fissure sealing agent material can be improved, and the curing time is reduced.

The utility model discloses a corrosion-resistant pipeline compensator for dangerous environment, which relates to the field of pipelines and comprises a compensation mechanism and a pipeline body, the compensation mechanism comprises a first transparent semicircular sleeve and a second transparent semicircular sleeve, and the first transparent semicircular sleeve and the second transparent semicircular sleeve are connected in a clamping manner. The first transparent semi-circle sleeve and the second transparent semi-circle sleeve are arranged on the outer side of the pipeline body in a sleeving mode, a plurality of semi-circle shells are fixed in the first transparent semi-circle sleeve and the second transparent semi-circle sleeve, and in actual operation, the first transparent semi-circle sleeve and the second transparent semi-circle sleeve are both made of transparent corrosion-resistant plastic materials. When the pipeline body is damaged and a conveyed water source leaks, the water source is in contact with the anhydrous cupric sulfate test paper, so that the anhydrous cupric sulfate test paper changes color, and a person can judge the water leakage position by observing the color of the anhydrous cupric sulfate test paper from the outside, so that the person can conveniently detect the water leakage position.

The invention discloses a double-effect strain for reducing salt and mineralizing as well as a culture method and application thereof, the double-effect strain for reducing salt and mineralizing is classified and named as Halomonas sulfidaeresis. ZN2 #, is preserved in the China General Microbiological Culture Collection Center (CGMCC), and has the preservation number of CGMCC No.32033. The invention also discloses a method for culturing the double-effect strain for reducing salt and mineralizing. The optimal culture conditions are as follows: the culture temperature is 30 DEG C, the culture rotating speed is 200 r / min, and the culture time is 48 hours. The strain has the double-effect performance of mineralization and salt reduction at the same time, and the salt content in the soil can be reduced while the soil is solidified. The strain is combined with a microbe induced calcium carbonate precipitation technology, the salt content in saline soil can be reduced while the soil body strength is improved, and the strain is suitable for improvement and modification of saline-alkali soil. The strain avoids the influence of exogenous strains on the soil environment while repairing and improving the saline-alkali soil, and realizes the sustainability of saline-alkali soil improvement.

The invention relates to the technical field of geotechnical engineering, and discloses an early-strength geopolymer curing agent for fluid-state high-plasticity clay in order to solve the contradiction that the fluid-state high-plasticity clay needs to maintain enough fluidity and obtain high early strength in the curing process. The curing agent is prepared from the following raw materials in parts by mass: 60-80 parts of a main curing agent, 6-21 parts of an exciting agent, 3-9 parts of an early strength agent and 6-12 parts of a viscosity reducer. The plasticity index of the high-plasticity clay is larger than 20, and the mass of particles with the particle size smaller than 0.005 mm exceeds 30% of the total mass of the clay. Compared with the prior art, the curing agent disclosed by the invention has the advantages that the use amount of water can be reduced while the sufficient flowability of the fluid-state high-plasticity clay is maintained, the early strength of a cured soil body is greatly improved, meanwhile, the use amount of cement can be reduced by utilizing geopolymer curing, solid wastes are recycled, and good economic benefits and environmental protection benefits are achieved.

The invention discloses an acrylate grouting material for impervious repair of concrete cracks and a preparation method of the acrylate grouting material, and relates to the technical field of building materials. The preparation method of the acrylate grouting material at least comprises the following steps: mixing 15-25 parts by mass of acrylate and 50-60 parts by mass of water, adding 20-30 parts by mass of a cross-linking agent and 0.5-2 parts by mass of an accelerant, and uniformly dispersing to obtain a component A; uniformly dispersing 50-60 parts by mass of modified styrene-acrylic emulsion, 40-50 parts by mass of water, 1-3 parts by mass of an initiator and 1-5 parts by mass of modified talcum powder to obtain a component B; and blending the component A and the component B to obtain the acrylate grouting material. The prepared acrylate grouting material is excellent in impermeability and small in drying shrinkage volume, and the durability is also improved.

The application discloses a kind of sludge solidifying agent using carbon fixation desulfurization ash, by cement clinker 12~15%, mineral powder 50~55%, steel slag powder 15~20%, carbon fixation desulfurization ash 10~15%, solid additive 1~2%, liquid additive 1~2% composition by mass percentage.The application uses desulfurization ash to fix CO2 in industrial tail gas to improve the activity of desulfurization ash, then carbon fixation desulfurization ash is compounded with cement clinker, mineral powder, steel slag powder, solid additive, liquid additive to obtain sludge solidifying agent.The application does not need to use various chemical means of flotation agent to enrich the carbon fixation component in desulfurization ash, and the cementation activity of desulfurization ash after carbon fixation is greatly improved, can better play sulfate activation effect, and with additive play superposition coupling effect, and with cement clinker, a kind of cementing material system, can jointly prepare sludge solidifying agent, to waste treat waste at the same time, improve the solidification strength of the sludge solidifying agent to sludge and the solidification effect of heavy metals in sludge.

The invention relates to the field of polymer chemistry, in particular to a preparation method of an ammonia-free phenolic curing agent, the ammonia-free phenolic curing agent is a powdery phenolic curing agent, and the preparation method of the ammonia-free phenolic curing agent comprises the following steps: firstly, synthesizing solvent type liquid phenolic resin; the preparation method comprises the following steps: mixing phenol and formaldehyde, adding organic amine as a catalyst, carrying out a constant-temperature reaction to an end point, dehydrating to a nearly anhydrous state, adding a solvent and the organic amine catalyst, and carrying out a reflux reaction until the polymerization speed reaches 30-40s. Secondly, the solvent type resin passes through a heatable rotary spray drying device, a solvent is completely removed and recycled, an obtained solid product can be filtered through a vibrating screen and directly packaged into a finished product, and therefore the powdery ammonia-free phenolic aldehyde curing agent with the melting point being 80-90 DEG C and the polymerization speed being 30-40 s is prepared. The product can be used for production and solidification of precoated sand, no ammonia gas is generated, the gas generation amount is small, the quality of the precoated sand is improved, the working conditions of workers are improved, and the environment is protected.

The invention belongs to the technical field of resin sand preparation, and specifically relates to resin sand for sand prevention of artificial well walls of oil, gas and water wells and a preparation method thereof; hollow glass microspheres modified by phosphoric acid functionalized quartz sand, epoxy resin, polyamide curing agent, silane coupling agent and dispersant raw materials are mixed, dispersed, cooled, sieved and packaged to obtain the product, and the prepared product has good compressive strength, permeability and acid and alkali resistance.

The chemical plugging device comprises a visual detection module, a sealing connection module, a flushing module and a plugging module, and through modular design and flexible material innovation, accurate detection, efficient flushing and targeted plugging of a wing valve are achieved; according to the method, the pertinence and reliability of the plugging operation are remarkably improved through the closed-loop process of pressure release, visual detection, gas-liquid collaborative flushing, squeezing and plugging, and sealing checking after coagulation in combination with gas channeling speed dynamic regulation and control and a multi-slug collaborative injection strategy. The method is suitable for a pressurized gas well in which normal-temperature and normal-pressure well cementation cement does not return to a wellhead and an annulus has a treatment space, a formation fluid upward-flowing channel can be effectively plugged, the annulus plugging operation efficiency and success rate are improved, and safe production of the gas well is guaranteed.

The present invention relates to a modified mineral admixture concrete and a preparation method thereof, and belongs to the technical field of building materials; the present invention uses fly ash admixture, silicate cement, sand, acrylic acid, sodium hypophosphite, sodium formaldehyde sulfoxylate, ammonium persulfate, and modified water reducer as raw materials to prepare a modified mineral admixture concrete; the present invention also discloses a preparation method of the modified mineral admixture concrete, including first preparing a water reducer mother liquor, then mixing the fly ash admixture with cement and sand to obtain a mixture, and finally adding the water reducer mother liquor to the mixture to obtain the modified mineral admixture concrete. The preparation method of the modified mineral admixture concrete of the present invention is simple, the raw materials are easy to obtain, the strength after curing is high, the compressive strength after curing for 28 days can reach up to 51.6MPa, the initial fluidity is good, the collapse retention is excellent, and it can be widely used in the construction field.