110results about How to "Add active groups" patented technology

The invention relates to a deep softening method of thick oil sewage, which comprises the following steps: preterating thick oil sewage to remove impurities in the thick oil sewage, and carrying out preliminary softening treatment with a macroporous weak acid resin until the pH value of the thick oil sewage reaches 7-9 and the temperature reaches 57-80 DEG C; passing the pretreated thick oil sewage through an adsorption tower or adsorption column filled with a chelating resin at the flow rate of 20-30 BV/h to carry out adsorption treatment; and when the adsorption reaches the leakage point, obtaining the thick oil sewage subjected to deep softening. The method provided by the invention is a treatment process capable of efficiently softening thick oil sewage according to the water quality characteristic of the thick oil sewage; and the method provided by the invention can still be used repeatedly in a thermal recovery boiler without generating scales after saving the silicon removal system.

The invention relates to a modification method for improving hygienic performance of superfine fiber synthetic leather base fabric through collagen. The superfine fiber synthetic leather base fabric serves as a main body of synthetic leather, and water vapor can not be transferred effectively between fibers and the outside due to a few active groups on the base fabric. According to the modification method, gelatin is hydrolyzed to obtain the collagen; dry superfine fiber synthetic leather base fabric is processed with concentrated sulfuric acid to obtain the superfine fiber synthetic leather base fabric with the acid-hydrolysis modified surface; the extracted collagen is grafted to the processed base fabric for reaction to obtain target products. By the aid of the modification method, the active groups on the surface of the superfine fiber synthetic leather base fabric are effectively increased, covalent modification is performed on the surface of the superfine fiber synthetic leather base fabric through the collagen, the hygienic performance of the superfine fiber synthetic leather base fabric is improved through the collagen, resource utilization of the waste collagen is achieved, and meanwhile, the problem of the poor hygienic performance of the superfine fiber synthetic leather is solved.

The invention provides a preparation process of a glass fiber composite material. The preparation process comprises the steps of (1) a glass fiber high-temperature treatment process, (2) an acid-alkali etching treatment process, (3) a silane coupling agent treatment process, and (4) preparation of a glass fiber/dicyclopentadiene (DCPD) composite material. According to the process, glass fibers are modified, the treated glass fibers are analyzed by adopting an infrared spectrogram and SEM, and a result shows that the surface structure of the treated glass fibers is changed compared with the untreated glass fibers. The surface of the glass fibers after being treated by the coupling agent is not smooth, active groups are increased, the overall appearance is provided with valleys and attachments adhered on the surface of the glass fibers, and the compatibility of the glass fibers to a matrix can be improved. When the glass fibers are broken in the matrix after being treated by the coupling agent, no obvious interface exists between the fibers and the matrix. The mechanical properties of the composite material can be improved.

The invention provides novel self-emulsifying water-based polyester emulsion and a preparation method thereof. The preparation method includes the following steps that itaconic acid, methyl-butanedioic acid-5-sodium sulfonate and 1,4-butanediol are subjected to condensation polymerization, then terminal hydroxyl water-based polyester-poly(itaconic acid butanediol-co-methyl-butanedioic acid-5-sodium sulfonate butanediol)ester (PBIINa) is obtained, and the PBIINa and terminal olefine acid are heated to 110-160 DEG C under nitrogen protection, and terminal olefine acid modified water-based polyester is obtained after an esterification reaction. The terminal olefine acid modified water-based polyester is dispersed in water, and then the water-based polyester emulsion is obtained. The preparation method of the water-based polyester emulsion is novel and has a self-emulsifying function, an emulsifying agent does not need to be added, organic solvent is not contained, and the water-based polyester emulsion can be used as emulsion coating and has broad market prospects. The steps are simple, operation is convenient, and practicability is high.

The invention discloses a lignin nitrogen-rich carbon/zinc oxide nanocomposite as well as a preparation method and application thereof. The method comprises the following steps: (1) dissolving ligninin an alkaline solution, carrying out hydrothermal pretreatment, conducting cooling, and adjusting a pH value to 3-5 to obtain an acid-soluble lignin solution; (2) adding a mixed solution of soluble zinc salt and soluble carbonate into the acid-soluble lignin solution, conducting a hydrothermal reaction, then adding hydroxymethylated melamine, and continuing the hydrothermal reaction to obtain a nitrogen-doped lignin/zinc oxide compound; and (3) carbonizing the nitrogen-doped lignin/zinc oxide compound to obtain the lignin nitrogen-rich carbon/zinc oxide nanocomposite. In the obtained composite material, lignin carbon is uniformly doped with the nitrogen element, and the lignin nitrogen-rich carbon uniformly coats the surfaces of zinc oxide particles to form a uniform carbon layer with a continuous structure, so the problems of serious volume expansion and poor conductivity of zinc oxide serving as a lithium ion negative electrode material are solved, and the specific capacity, the initial coulombic efficiency and the rate capability of a lithium ion battery are improved.

The invention discloses a cultivation material for the artificial cultivation of Phellinus igniarius, and a preparation method of the cultivation material. The preparation method comprises the following steps: (1) crushing mulberry twigs, cotton seed hulls and bran and then performing uniform mixing to obtain a mixture A; (2) performing steam explosion treatment on the mixture A to obtain a mixture B; (3) preparing a liquid culture medium with grapefruit peel hydrolysate as a raw material, performing inoculation with Acetobacter xylinum, and performing mechanical stirring and fermentation to obtain a fermentation broth C; (4) uniformly mixing the mixture B, the fermentation broth C, a vermiculite powder and quicklime, and performing microwave expansion treatment to obtain a mixture D; (5)fully dissolving sucrose and potassium dihydrogen phosphate in water to obtain a nutrient solution E; and (6) fully stirring the mixture D and the nutrient solution E uniformly, and then performing pressing to obtain the cultivation material. The cultivation material prepared by the invention not only can provide nutrient components required for the growth of Phellinus igniarius and improve the yield of Phellinus igniarius fruiting bodies, but also can improve the content of active components of Phellinus igniarius and improve product quality.

The invention discloses a modification method of corncobs, a modified product of the corncobs and application of the modified product and belongs to the technical field of modified materials. The modification method of the corncobs comprises the following steps: (1) chopping the corncobs and mixing the corncobs with tap water, and mashing; washing and immersing crushed residues with the tap water; removing suspended fine substances and soluble matters; after filtering, drying with air at a room temperature and sieving; (2) uniformly mixing a sieved matter and a phosphoric acid solution, immersing with a water bath and then filtering; (3) drying at 30-70 DEG C and 110-150 DEG C in sequence; (4) washing until the pH value is equal to 7; and (5) drying. With the adoption of the method disclosed by the invention, the reutilization of the agricultural waste corncobs is realized; and active groups on the surfaces of particles can be increased and uneven and porous structures can be formed on the surfaces of the particles, so that the modified material has excellent physical absorption and chemical properties, and the adsorption rate is averagely improved by about 24%-40%.

The invention discloses a preparation method of a wear-resisting polyether-ether-ketone composite material filled and reinforced by calcium carbonate crystal whisker-vermiculite. The method comprisesthe steps of drying polyether-ether-ketone in a vacuum drying oven, loading the dried polyether-ether-ketone, silane-modified nanometer titania, surface-treatment calcium carbonate crystal whisker andsurface modification treatment carbon fiber, and organic intercalated vermiculite in a high-speed mixing machine, stirring and mixing at low speed, loading in a mold, pre-pressing, putting in a furnace, heating for melting, then placing into a press vulcanizer for mould pressing, air cooling, taking out, and annealing to obtain the composite material. Hexadecyl trimethyl ammonium bromide is adopted for carrying out organic intercalation treatment on lamellar vermiculite, so that the interlayer spacing of the vermiculite is increased; the vermiculite and the nanometer titania are compounded tomodify the polyether-ether-ketone, so that the oxidation of the polyether-ether-ketone is delayed, and the thermal and oxidative aging resistance of the polyether-ether-ketone is improved; the nanometer titania has a higher ultraviolet light shielding effect, so that the light aging resistance of the polyether-ether-ketone is improved.

The invention discloses a special paper tube adhesive for paper and belongs to the technical field of binding agents. The special paper tube adhesive for the paper is prepared by the following steps:stirring and mixing nano silicon dioxide, a silane coupling agent and an ethanol solution and reacting; then filtering, washing and drying to obtain modified nano silicon dioxide; then carrying out ultrasonic dispersion on the modified nano silicon dioxide and absolute ethyl alcohol to obtain a modified nano silicon dioxide dispersed solution; mixing glass fibers and the modified nano silicon dioxide dispersed solution and immersing; then drying the immersed glass fibers until the weight is constant; mixing the immersed glass fibers and a dopamine solution and immersing; then drying the immersed glass fibers until the weight is constant, so as to obtain modified glass fibers; stirring and mixing polyvinyl alcohol, a cyclodextrin derivative and water; then adding polyvinyl acetate emulsion,cellulase, the glass fibers and polystyrene emulsion, and stirring and mixing to obtain the special paper tube adhesive for the paper. The special paper tube adhesive for the paper, which is preparedby the technical scheme, has the characteristics of excellent bonding performance and has a wider application and development field.

The invention discloses a preparation method of a decolorizing membrane for printing and dyeing wastewater. The decolorizing membrane is prepared from copper acetate monohydrate, sodium borate decahydrate, dopamine hydrochloride, 2-bromoisobutyryl bromide, nanometer titanium dioxide, hydrazine hydrate, chitosan, chloroacetic acid, silver nitrate, beta-cyclodextrin, polyacrylic acid and other raw materials. Obtained silver particles are loaded with the chitosan, the beta-cyclodextrin and the like for embedding, and a stable fiber membrane structure is formed by electrospinning and thermal crosslinking. The obtained fiber membrane is impregnated with grafted nano-titanium dioxide, a large number of active sites on the surface of the membrane are used for increasing the reaction contact surface with the wastewater, and then a layer of nano-copper membrane is impregnated and loaded with the copper acetate monohydrate. The process of a reduction reaction is accelerated by the characteristicof rapid electron conduction, and the dye decolorizing speed is increased, so that the obtained decolorizing membrane has high efficiency and high stability, and the defects of the traditional decolorization treatment of the printing and dyeing wastewater are overcome. The preparation method has significant application value in pollution control.

The invention belongs to the technical field of waterproof coatings, and particularly relates to a polymer cement waterproof coating. According to the polymer cement waterproof coating disclosed by the invention, by using ethyl acrylate, methyl acrylate and the like as basic raw materials, acrylate emulsion is synthesized; in a synthesizing process, the acrylate emulsion is modified by using silicone monomer methyl vinyl dichlorosilane; a silicon-oxygen bond is introduced, so that binding degree between the silicon-oxygen bond and cement is increased, performance and firmness of the membrane is improved; meanwhile, under an effect of Lewis acid, an unsaturated bond is introduced by using maleic anhydride, so that an active group of the emulsion is increased, an effect of the unsaturated bond and calcium ions is increased, water tolerance is further improved, and the photographic property of the emulsion is also improved; by compounding with butanol, the flowability of the membrane in the early stage is improved; by utilizing unrecoverable performance of calcination of kyanite is utilized, pore formation in the cement is carried out, and contact performance of the cement and the emulsion is increased; meanwhile, the emulsion is compounded with o-cresol aldehyde epoxy resin, so that performance of self-curing membrane formation of the coating is increased, and the phenomenon that a curing membrane is easily swelled by water again is avoided.

The invention discloses a method for preparing the inner and outer wall insulation putty of blast furnace slag, which is prepared by the following raw materials: cement, hollow glass beads, tetraethyl orthosilicate, anhydrous ethanol, 1mol / L hydrochloric acid, template agent F127, emulgator OP 10 portions, sodium bicarbonate, silica sol, ammonium persulfate, light sand, titanium dioxide, blast furnace slag, brucite fiber, gypsum, polyethylene glycol fatty acid ester, tourmaline powder, polystyrene prepolymer, sodium alginate, azodiisobutyronitrile and a proper amount of deionized water. The putty powder of this invention has the advantages of low cost, good adhesive property, good abrasion resistance, good washing resistance, and also has anti-cracking, no corrosion, no cracking, environmentally friendly, tasteless, no harm to the human body and so on.

The invention relates to a method for modifying graphene by aqueous titanate. The method is as below: first dissolving aqueous titanate in water, then adding a graphene powder, and conducting ultrasonic treatment in a magnetic field to obtain a graphene dispersion; conducting distillation or vacuum distillation on the dispersion in the external magnetic field to obtain a graphene concentrated solution; and then drying to obtain aqueous titanate modified graphene. The method uses aqueous titanate for surface modification of graphene, introduces active groups to the graphene surface and avoids the agglomeration of graphene; and active group can significantly improve the dispersion and compatibility of graphene with other materials, and substantially improve the performance of graphene composite. In addition, ultrasonic treatment on the graphene dispersion in magnetic field not only can make the aqueous titanate fully modify the graphene, but also can achieve good stripping effect of graphene under the joint action of the magnetic field and ultrasound; and the method can significantly reduce the usage amount of graphene composite.

The invention discloses concrete mortar and belongs to the field of mortar. The concrete mortar takes lignite as a raw material; the lignite can be pyrolyzed under a high-temperature condition to generate tar and a coke component; the tar has the effect of sticking each component; the coke component can react with hydroxyl silicate in stone material liquid in a system under the catalysis effect ofnano iron powder to generate a silicon carbide framework, so that a reinforcing effect is realized and the toughness of the system is improved; asphalt fibers are oxidized through potassium permanganate so that the adsorption force of the asphalt fibers on nano magnesium oxide is enhanced, and the adsorption performance of the asphalt fibers on silicon dioxide generated by hydrolyzing tetraethylorthosilicate can also be effectively improved; the early age strength of a cement-based grouting material is improved, and the expansion coefficient of the cement-based grouting material can be adjusted through magnesium oxide, so that the cement-based grouting material is not easy to crack after being cured. By adopting the concrete mortar provided by the invention, the problems that common mortar at present is easy to hollow and rack, and the toughness and mechanical property are poor are solved.

The invention relates to the field of doors and windows, in particular to a constant-temperature health door and window comprising a door and window sash and a door and window frame body. Door and window shafts are arranged at the upper end and the lower end of the door and window sash, and the door and window sash is movably connected with the door and window frame body through the door and window shafts. When the door and window need to be moved or replaced, only hinges need to be dismantled, and use can be realized through installation after dismantling without vacuumizing like double-layerglass, and light transmittance is much higher than that of the double-layer glass. The door and window sash is coated with a thermal insulation coating, and the problem of poor thermal insulation performance of an existing door and window is solved. In addition, the edge of the door and window sash is coated with a sealing rubber pad, and the sealing rubber pad can seal the gap between the door and window sash and the door and window frame body after the door and window are closed, so that the thermal insulation effect of the door and window is further enhanced.

The invention relates to a method for processing superfine fiber synthetic leather skin-imitated leather. Superfine fiber synthetic leather is treated by adopting the traditional means, so that the hygienic property of the superfine fiber synthetic leather can be improved to a certain extent, but excellent performance of dermis can not be achieved. The method comprises the following steps: washing the superfine fiber synthetic leather in an overflow dyeing machine, regulating a pH value by adding a formic acid solution, carrying out crosslinking by adding a crosslinking agent solution, regulating a pH value by adding a sodium bicarbonate solution, finishing filling by adding a retanning agent solution, adding glutaraldehyde, modified glutaraldehyde, oxazolidine or an organic phosphine tanning agent, carrying out secondary fixed crosslinking, finishing fat liquoring by adding a fat-liquoring agent solution, dyeing, regulating a pH value by adding the formic acid solution, adding the crosslinking agent solution, carrying out third time of fixed crosslinking, adding the sodium bicarbonate solution, extracting alkali, washing, exiting the overflow dyeing machine, hanging and drying. According to the method disclosed by the invention, a macromolecular tanning agent is fully fixed among fibers, so that the amount of active group on the surface of a base cloth is increased, and performances, including the water vapor permeability, the hygroscopicity and the drapability, of the superfine fiber synthetic leather base cloth are improved.

The invention relates to a preparation method for glass fiber. The method comprises the following steps: 1) mixing and fusing raw materials, and wiredrawing to form a crude fiber product; 2) putting the crude fiber product into a muffle furnace, removing water attached to the glass fiber surface, and then performing acid-base immersion cleaning, thereby acquiring a refined glass fiber product; 3) soaking the refined glass fiber product into a NaOH solution and then taking out, washing with distilled water, taking out and dispersing in absolute ethyl alcohol of a coupling agent KH570, regulating pH and dispersing with an ultrasonic meter, thereby acquiring a semi-finished product of glass fiber; 4) removing surface alkali liquor by spraying the surface of the semi-finished product of glass fiber with warm water, then soaking in clean water, and washing with the assistance of a hot water pump till the pH value is less than 6, thereby acquiring a to-be-finished product of glass fiber; 5) performing thermal shaping treatment on the to-be-finished product of glass fiber, and performing gumming, grouting and drying on the surface, thereby acquiring the end product. The preparation method has the advantages of simple structure, low cost and suitability for large-scale industrial manufacturing.

The invention discloses a cement-based grouting material, and belongs to the technical field of building materials. The cement-based grouting material is prepared according to the following steps: melting asphalt powder, performing high-voltage electrostatic spinningto obtain asphalt raw threads, soaking the asphalt raw threads in a potassium permanganate solution, performing oxidation to obtain oxidized asphalt fibers, mixing nano magnesium oxide, a silane coupling agent and an ethanol solution, performing ultrasonic dispersion, adding the oxidized asphalt fibers, performing mixing under stirring, adding tetraethoxysilane dropwise, performing mixing under stirring, performing filtering, performing washing, performing drying, and performing carbonizing to obtain modified asphalt fibers; mixing aluminum powder and glycerol under stirring, adding wheat gluten powder, performing mixing under stirring, adding water, performing swelling, allowing the obtained material to stand, and performing ultrasonic dispersion to obtain a modified aluminum powder dispersion liquid; and mixing cement, quartz sand, water, a water reducing agent, fly ash, mineral powder, slag, a defoaming agent, a water retaining agent, the modified asphalt fibers and the modified aluminum powder under stirring to obtain the cement-based grouting material. The cement-based grouting material obtained by the technical scheme has the advantages of good fluidity, early-stage strength and expansion performance.

The invention belongs to the technical field of soil conditioning and particularly relates to a preparation method of a saline-alkaline soil bio-conditioner. The preparation method includes: using leaf mold having developed pores and rich organics as a raw material, activating the raw material with a surfactant, extruding the activated material with additives, tightly combining the additives and the raw material by adding, allowing sulfur in the additives to form sulfides during pre-charring, retaining the sulfides during extrusion, allowing the sulfides to be well sucked to pre-charred particles through magnetic iron oxide, mixing the sucked sulfides with a mixed biological liquid to well suck and support microbes in the mixed biological liquid, subjecting enzymes and bacteria in the microbes to crosslinking and curing via Genipin, and mixing with additives. The additives help effectively improve water-holding performance of soil, and other auxiliaries help improve the soil conditioning effect.

The invention relates to a preparation method of a metal ion adsorbent and belongs to the technical field of adsorbents. According to the preparation method, bamboo is adopted as a carrier, pores in the bamboo are increased through a steam blasting method, an internal structure of the bamboo is destroyed, the adsorption performance is improved, and then the bamboo is put into a carbonization furnace for pre-carbonization; complete carbonization of the interior of the bamboo is avoided through pre-carbonization, internal materials of the bamboo are partially decomposed or degraded, the adsorption and binding capability is improved, and then composite glue and sea mud are added; active substances in the sea mud can be well combined with the composite glue to achieve wrapping of pre-carbonized particles, metal substances in the sea mud are utilized to promote cross-linking in the composite glue for improving the adsorption performance, the composite glue is cross-linked with acrylic acidunder the action of sodium hydroxide, and under the action of N,N-dimethyl amide and sodium hydrosulfide, sulfydryl is added to the surface of the adsorbent, so that the adsorption performance for metal ions is improved.

The invention discloses a preparation method of composite material for a mobile phone shell, which includes steps of: feeding raw materials into a high-speed mixer, the raw materials comprising, by weight, 82-95 parts of polycarbonate, 33-36 parts of an acrylonitrile-butadiene-styrene copolymer, 15-25 parts of modified carbon fiber, 3-8 parts of a ternary styrene-acrylonitrile-maleic anhydride random copolymer, 2-4 parts of tributyl phosphate, 2-4 parts of EC type brominated epoxy resin, 0.5-1 part of tri(2,4-di-tert-butylphenyl) phosphite, 1-2 parts of pentaerythritol stearate, and 0.5-2 parts of bis(2,6-di-tert-butylphenol), and mixing the components for 3-5 min to obtain a mixture; and performing extrusive granulation to the mixture on a twin-screw extruder to obtain the composite material. The composite material has great comprehensive performance and high strength.

The invention provides a preparation method of a glass fiber composite material. The preparation method comprises the following steps that a, glass powder, selected high filter residue, calcium oxide,magnesium oxide, titanium dioxide, aluminum oxide and silicon dioxide are mixed and smashed, and mixed powder is obtained; b, a substrate material, glycidyl methacrylate, sodium pyrophosphate and pentaerythritol ester are mixed to be uniform and melted to be at a molten state, and a first material is obtained after heat preservation is conducted; c, the mixed powder is added into the first material and melted and stirred, then subjected to fusion wiredrawing, and a crude product is obtained; and d, the crude product is subjected to acidification treatment, treatment is conducted on the crudeproduct by using a silane coupling agent, heat treatment is conducted consecutively, and finally drying is conducted. The prepared glass fiber composite material has good ablation performance, betterhigh temperature resistance, the chemical corrosion resistant property and the elasticity modulus.