92results about How to "Not easy to swell" patented technology

The invention discloses an embedding immobilization method for a microbial preparation. 1 liter of embedding material comprises 70 to 90g of polyvinyl alcohol, 3 to 5g of sodium alginate, 7 to 9g of silicon dioxide and 0.4 to 0.6g of calcium carbonate; 200 to 250ml of microbial biomass is added into each liter of gel solution (each milliliter of the microbial biomass is 7*10<6> to 9*10<6>CFU); 4 to 6g of activated carbon and 4 to 6g of straw powder are added into microbe solution; and the immobilized grain diameter is about 10mm. The embedding immobilization method has the advantages that microbes well grow in immobilized beads; immobilization materials have no toxic or side effects on aquaculture animals; the immobilization method is simple to operate; the immobilization materials are economic and practical and easy to recycle and reuse; immobilized microbes are easy to preserve and transport and if microbes capable of decontaminating wastewater are immobilized by the method, the immobilized microbes have purification effects superior to those in a suspension state.

The invention discloses a manufacturing method for a hard micro-fluid chip. The manufacturing method comprises the following steps: preparing an upper chip and chemically bonding and packaging the upper chip under a semi-cured state with a substrate, thereby acquiring the hard micro-fluid chip. The upper chip can be prepared from epoxy resin or amino resin; when the upper chip is prepared, the heating curing temperature is 45-85 DEG C and the time is 15 minutes to 8 hours; a thermal polymerized epoxy resin material is used after the two materials of prepolymer and curing agent are mixed, the viscosity thereof after mixing is low (approximate to mineral oil viscosity), the rolling printing for a tiny structure at micron scale and even nanometer scale is convenient and the rolling precision is high; the mixture can be solidified within 40min under the temperature of 80 DEG C, the preparation time of the micro-fluid chip is shortened, the period is short, the consumption of a reagent is less and the batch production is convenient; the hard micro-fluid chip can be flexibly packaged and combined with various substrates; the packaging is independent of external high temperature and high pressure environments; and the packaging strength is high and the speed is high.

The invention discloses a packing sealing filler and its preparation method. Calculated by weight percentage, the filler is composed by mixing 72%-88% of a mixed material and 12%-28% of modified methyl silica gel. Specifically, in terms of weight percentage, the mixed material is formed by mixing 66%-71% of polytetrafluoroethylene, 25%-28% of glass fiber powder, 4%-8% of a filler, and 2%-10% of molybdenum disulfide. The preparation method of the packing sealing filler consists of: mixing all the raw materials uniformly and then preparing them into a multilayer rubber plate, cutting the plate into strips, using a plodder to press the strips into strip products of various specifications. The filler provided in the invention has the advantages of good self-lubricating performance, small friction coefficient, strong toughness, high chemical stability, swelling and dissolution-proofness, simple preparation, convenient disassembly and assembly, as well as low production cost, thus being suitable for mass production and promotion.

The invention discloses a sympodial bamboo integration profile manufacturing method. The method is characterized by including the following steps: S1, soaking bamboo filaments of sympodial bamboo which are subjected to green planing and yellow removing in water for high-temperature stewing at temperature of 100-120 DEG C for at leat four hours, wherein the water contains, by mass, 5-10% of hydrogen peroxide and 0.5-1% of sodium hydroxide; S2, disposing wet bamboo filaments in a carbonization furnace for carbonizing at temperature of 130-15o DEG C and at pressure of 3-4 MPa for 4-6 hours; S3, drying for the first time, dipping in glue, and drying for the second time after glue dipping; S4, performing high-pressure forming at pressure of being not less than 1.2 t/cm2; S5, performing thermosetting for more than 10 hours at temperature of 80-150 DEG C under the condition that the pressure of being not less than 1.2 t/cm2 is maintained. By the sympodial bamboo integration profile manufacturing method, sympodial bamboo integration profiles meeting structural profile requirements can be manufactured.

The invention discloses preparation and application of PEG/Dex dual-aqueous-phase based calcium carbonate/calcium alginate composite microcapsules. The composite microcapsules are produced by taking dual-aqueous-phase (glucan/polyethylene glycol) liquid droplets as a template. The composite microcapsules are good in monodispersity, and the particle size can be accurately regulated and controlled from several microns to several millimeters. The microcapsules are of hollow structures, capsule walls are of double layers, the thickness of the capsule walls is controllable (about 1/50 to 1/4 the particle size of the microcapsules), inner sides of the capsules are of dense calcium carbonate layers, and outer sides of the capsules are of calcium alginate layers. Compared with pure calcium alginate microcapsules, the microcapsules have good mechanical strength and a dense capsule wall structure, the damage to capsule layers caused by a shearing force is avoided, and the leakage of contents isinhibited. The microcapsules can be used for constructing a low-leakage drug transport system and can also be used for preparing an immobilized enzyme carrier, which is high in number of times of recycle, long in preservation time and difficult in swelling. According to the preparation and the application, the application of calcium alginate microcapsules in the fields of biomedicines, food industry, chemical industry for daily use, enzyme engineering and the like is extended.

The invention relates to a porous cellulose microsphere adsorbent used for blood perfusion and a preparation method thereof. According to the porous cellulose microsphere adsorbent, the grain sizes of prepared porous cellulose microspheres are 0.1-2mm, the inner hole sizes of the porous cellulose microspheres are mainly distributed in a range of 5nm-40nm, the specific surface area is 400-1,000m<2>/g, and the operating pressure capable of being resisted is 7-15bar. The preparation method is characterized by comprising the following steps of: obtaining the porous cellulose microspheres by utilizing an inverse suspension system, and then obtaining the porous cellulose microspheres capable of resisting the operating pressure of 7-15bar through cross linking, wherein the porous cellulose microspheres can be used as a carrier of a biomedical material or used as an adsorbent material for the blood perfusion.

The invention discloses a fuel element as well as a preparation method and application thereof. The fuel element disclosed by the invention is a sphere which sequentially comprises a fuel layer, a non-fuel layer, and a housing layer which are concentric from inside to outside, wherein the non-fuel layer is made from conventional base materials in the field. The fuel element has the advantages of being small in density, having the non-fuel layer which can alleviate swell generated in the service process of the fuel layer, being not liable to rupture, high in power density, fast in heat dissipation and the like; and besides, the housing layer is compact in structure, high in compressive strength, and capable of preventing fused salt from infiltrating and fission products from releasing, and can be used for reactors. The preparation method is simple and low in cost.

The invention discloses nucleic acid aptamer-molecular imprinting synergistic recognition magnetic microspheres and a preparation method and application thereof. The nucleic acid aptamer-molecular imprinting synergistic recognition magnetic microspheres disclosed by the invention comprise magnetic microsphere inner cores and nucleic acid aptamer-molecular imprinting synergistic recognition shells;the nucleic acid aptamer-molecular imprinting synergistic recognition shells have molecular imprinting polymer rigid recognition cavities; the molecular imprinting polymer rigid recognition cavitieshave structural stability, difficult deformation and strong specific adsorptivity; and nucleic acid aptamers are not easy to digest.

The invention discloses an oil-resistant nitrile butadiene rubber seal ring. The seal ring consists of the following raw material components in parts by weight: 100 parts of nitrile butadiene rubber, 15 parts of activator FT, 5 parts of activator zinc oxide, 3 parts of plasticizer sebacic acid dibutyl phthalate, 3 parts of anti-aging agent octylated diphenylamine, 8 parts of reinforcing agent nano calcium carbonate, 10 parts of plasticizer dioctyl phthalate, 2 parts of accelerator TMTD, 2 parts of accelerator and 0.5 part of sulfur. The oil-resistant nitrile butadiene rubber seal ring has high surface polarity, good stability, low probability of swelling and good oil resistance and is particularly used for working mediums such as fuel, hydraulic oil and engine oil at 150 DEG C.

The invention relates to a xanthate cation dual-modified straw fiber printing and dyeing wastewater treatment agent which is prepared by extracting straw fiber by taking straw as a raw material, and sequentially modifying the straw fiber by using an anion esterifying agent and a cationic etherifying agent, wherein the anion esterifying agent is carbon disulfide; the cationic etherifying agent is 3-chlorine-2-hydroxypropyl trimethylammonium chloride. In addition to an excellent decoloration effect, the dual-modified straw fiber in the xanthate cation dual-modified straw fiber printing and dyeing wastewater treatment agent is hard to decompose in a water body, relatively good in water solubility resistance, hard to gelatinize even at 60 DEG C, applicable to certain acid-base environments, hard to hydrolyze and good in stability.

The invention relates to the technical field of literature scroll binding, and discloses a binding device for an ancient volume imitating Chinese language and literature, comprising a base, wherein the rear side of the upper end of the base is fixedly connected with a fixing frame of an inverted L-shaped structure, the upper end of the horizontal part of the fixing frame is slidably sleeved with an ejector rod through a round hole, and the lower end of the ejector rod penetrates through the round hole and is fixedly connected with a mounting plate; a punching mechanism is connected to the front side of the upper end of the mounting plate, a pressing plate is arranged at the lower end of the mounting plate, elastic steel plates are fixedly connected to the left end and the right end of the pressing plate, a positioning mechanism is connected to the upper end of the pressing plate and connected with the side wall of the mounting plate, and a plurality of notches matched with the punching mechanism are formed in the front side of the pressing plate. According to the binding device for the ancient volume imitating the Chinese language and literature, the punching efficiency and quality of paper of an ancient volume book can be improved, the safety is high in the punching process, the ancient volume book can be fixed in the punching process, a binding line can be conveniently threaded to bind the book, and the ancient volume paper cannot be scattered during tightening.

The invention discloses an oil-water separation pipe with a hydrophobic and oleophylic surface and a preparation method and application thereof. The oil-water separation pipe comprises a metal net substrate, a conical array constructed on the metal net substrate and made of epoxy resin and copper-containing nanorods wrapping the surface of the conical array, the conical height of the conical arrayranges from micron to millimeter, the distance between every two adjacent cones ranges from microns to millimeters, and the surface of the oil-water separation pipe is hydrophobic. The oil-water separation pipe material with the hydrophobic and oleophylic surface does not contain toxic and harmful substances, and is environmentally friendly, easy to clean, capable of being repeatedly used and good in stability. When emulsion separation of surfactant-containing oily wastewater is carried out, the method has the advantages of good emulsion separation effect on surfactant-coated micron-sized oildrops, high separation speed, high oil-water separation efficiency, continuous separation, low cost, low energy consumption, no need of adding other chemical reagents and the like.

The invention belongs to the technical field of cylinder body roundness correction and particularly relates to a tool rapidly correcting a cylindrical workpiece. The tool comprises a piston rod pressing head, a conical central spindle, supporting blocks and a bottom plate. The conical central spindle is fixed to the piston rod pressing head of a hydraulic machine. The four supporting blocks are evenly arranged in a cylinder body which needs roundness correction. The cylinder body is vertically arranged on the bottom plate. The supporting faces of the supporting blocks are arc faces matched with the inner diameter of the cylinder body. The conical central spindle is in a cylindrical shape, and the front end of the conical central spindle is provided with a chamfer. During use, the hydraulicmachine is started, the piston rod pressing head moves downwards, the conical central spindle enters an inner cone hole formed by the four supporting blocks so that the supporting blocks can do radial motion in the direction from the inner diameter to the outer diameter of the cylinder body, the cylinder body can be evenly stressed, and correction of the cylinder body is completed. During practical use, the cylindrical workpiece can be rapidly corrected, safety and reliability are achieved, the cost is low, and efficiency is high.

The invention discloses a preparation method and applications of a polyelectrolyte nano particle/NaA molecular sieve composite film capable of being protonated, and belongs to the technical field of separation. The preparation method comprises following steps: 1, a NaA molecular sieve base film is treated with dopamine; 2, a cationic polyelectrolyte containing amino groups and an anionic polyelectrolyte containing sulfonic acid groups are subjected to blending so as to obtain polyelectrolyte nano particles capable of being protonated; 3, the polyelectrolyte nano particles capable of being protonated are dissolved in a diluted acid for uniform dispersion so as to obtain a polyelectrolyte nano particle solution of a certain concentration; and 4, NaA molecular sieve film obtained via pretreatment is immersed in a solution of the polyelectrolyte nano particles capable of being protonated, and drying is carried out so as to obtain a compact pervaporation composite film which can be used for dehydration of organic matters under acidic conditions and possesses excellent separation capacity and acid stability.

The invention discloses an expanded compound feed for siniperca chuatsi and a preparation method thereof. The feed is mainly prepared from raw materials, a conventional auxiliary material and other auxiliary materials; the raw materials comprise fish meal, soybean meal, corn gluten meal, vital gluten and haemocyte powder, the conventional auxiliary material is starch, and the other auxiliary materials comprise cuttlefish paste, a yeast extract, potassium sorbate, fish oil, vegetable oil, lecithin, 50% choline chloride, premix for fishes, zeolite powder and monocalcium phosphate. According to the preparation method of the expanded compound feed for the siniperca chuatsi, after feed granules are prepared, vacuum spraying is conducted twice in order to spray nutrient components taking vegetable oil as the main material in the feed granules, attractant components which have the attractant effect and take the fish oil as the main material are sprayed to the exteriors of the feed granules, and the attractant effect is enhanced while the vegetable oil taste of the inner layer is shielded. The expanded compound feed prepared through the method has the advantages that nutrition is balanced, and the mouthfeel and the smell are close to those of live fishes; the expanded compound feed is not prone to be swollen after being put into water, and the bait coefficient can be decreased.

The invention belongs to the technical field of immobilized cells, in particular to a method for using a complex carrier of latex and a porous material as an immobilized carrier. The method comprises the following steps of: taking microbes subjected to activation and proliferation, mixing the microbes and the latex, and stirring and uniformly mixing; adding base material granules and stirring and uniformly mixing; drying for 0 to 4 hours at the temperature of between 50 below zero and 80 DEG C or adding a flocculant to gelatinize the latex; and finally, taking out and cleaning by using tap water, wherein the latex is used for specific engineering demands.

The invention provides a solar panel device with an automatic cleaning function. The solar panel device comprises six hinged solar panels which are fixed by a frame structure, and further comprises a cleaning device, wherein the cleaning device comprises a water injection device arranged on the front of the solar panels; the water injection device is of a rectangular structure; at least one row of nozzles are arranged along the length direction of the rectangular structure; two broadsides of the rectangular structure are connected to slide blocks; the slide blocks are arranged on two parallel sides of the solar panels through slide rails; the middle part of the water injection device is connected to a telescopic arm; the telescopic arm is provided with an air pipe connected to the water injection device; the other end of the air pipe is connected to a high-pressure air source; the high-pressure air source comprises a high-pressure air pump; the high-pressure air pump is connected to the air pipe; a pressure regulating valve and a control valve are arranged between the high-pressure air pump and the air pipe; a cylinder is arranged at the back of the solar panels; and a piston rod of the cylinder is connected to the telescopic arm through a connecting plate. The solar panel device has the advantages of reasonable design, simple structure, high degree of automation and good cleaning effect.

The invention discloses a method for preparing high-temperature resistant red glass. The method includes the following steps that 90-110 parts of silicon dioxide, 3-7 parts of zirconium dioxide, 2-10 parts of phosphorus pentoxide, 4-12 parts of aluminum oxide, 1.5-5 parts of limestone, 0.5-1.2 parts of nickel oxide, 0.02-0.08 part of cuprous oxide and 0.01-0.05 part of selenium oxide are mixed to be even and melted into glass liquid, the glass liquid is subjected to water quenching in room-temperature water, taken out, dried and subjected to ball milling, and coloring agent glass is obtained; then 90-110 parts of silicon dioxide, 3-7 parts of zirconium dioxide, 2-10 parts of phosphorus pentoxide, 4-12 parts of aluminum oxide, 1.5-5 parts of limestone, 0.5-1.2 parts of nickel oxide and the coloring agent glass are mixed to be even, melted, formed, subjected to heat preservation and cooled to the room temperature, and the high-temperature resistant red glass is obtained. The high-temperature resistant red glass is excellent in high temperature resistance, not prone to expansion cracking under continuous high-temperature exposure, even in coloring and good in light transmission.

The invention discloses oil-proof nitrile rubber which comprises, by weight parts, 100 parts of nitrile rubber, 15 parts of active agent FT, 5 parts of active agent zinc oxide, 3 parts of plasticizer dibutyl sebacate, 3 parts of antioxidant octylated diphenylamine, 4 parts of reinforcing agent white carbon black, 6 parts of reinforcing agent black carbon black, 10 parts of plasticizer dioctyl phthalate, 2 parts of accelerant TMTD, 2 parts of accelerant CZ and 0.5 part of sulphur. The oil-proof nitrile rubber is high in surface polarity and good in stability, does not swell easily and is good in oil resistance.

The invention discloses a preparation method of high temperature resistant yellow glass. The preparation method comprises the following steps: uniformly mixing 90-110 parts of silicon dioxide, 3-7 parts of zirconium dioxide, 2-10 parts of phosphorus pentoxide, 4-12 parts of aluminium oxide, 1.5-5 parts of limestone, 0.5-1.2 parts of nickel oxide, 0.02-0.08 part of ferric oxide and 0.01-0.05 part of cadmium sulfide, melting the mixture to obtain molten glass, quenching the molten glass in room-temperature water, taking out the molten glass, drying and ball-milling the molten glass to obtain colorant glass, then uniformly mixing 90-110 parts of silicon dioxide, 3-7 parts of zirconium dioxide, 2-10 parts of phosphorus pentoxide, 4-12 parts of aluminium oxide, 1.5-5 parts of limestone and 0.5-1.2 parts of nickel oxide with the colorant glass, melting the mixture and forming, insulating and cooling the product to room temperature, thus obtaining the high temperature resistant yellow glass. The high temperature resistant yellow glass has excellent high temperature resistance, is not liable to undergo expansion cracking continuously under the blazing sun, is uniform in coloring and has good transmission of light.