52results about How to "Increase chemical bonding" patented technology

The present invention generally relates to an additive package for warm-mix asphalt formulations for the pavement of road surfaces, said additive package comprising a) surfactant component, and b) an asphalt rheology modifying component, wherein said asphalt rheology modifying component comprises at least one of a i) a wax component and ii) a resin component. The invention also relates to a warm mix asphalt having improved compaction at lower temperatures, and to a pavement made from said warm mix asphalt.

A sleeve grouting material for connection of steel bars is prepared by adding 13-14 parts by weight of water into per 100 parts by weight of sleeve grouting material dry powder for connection of steel bars. The dry powder is a mixture comprising the following components by weight: 1350-1450 parts of compound cement prepared by mixing ordinary Portland cement and sulphoaluminate cement, 250-550 parts of quartz powder, 350-500 parts of silica powder, 150-250 parts of micro silica powder, 50-100 parts of light calcium carbonate, 50-150 parts of a compound expansion agent, 20-25 parts of polycarboxylic acid water reducing agent and 2.15-2.30 parts of a modifier; the modifier comprises 0.15-0.2 part of a polyether modified silicone defoaming agent, 0.8-1 part of sodium gluconate, 0.4-0.5 part of zinc oxide and 0.6-0.8 part of lithium carbonate. The grouting material has stable and reliable performance, and the preparation method is simple and scientific.

The invention provides a composite photocatalyst and a preparation method and application thereof. The composite photocatalyst comprises a solvent and nanometer titania, a carbon material and nano-crystalline cellulose which dispersed in the solvent, and the nano-crystalline cellulose and the nanometer titania are interspersed in the carbon material. The preparation method includes the steps of 1), mixing a carbon material dispersion solution with a nanometer titania dispersion solution to obtain a mixture; 2), mixing the mixture with a nano-crystalline cellulose solution to obtain the composite photocatalyst. The composite photocatalyst is good in photocatalytic effect, simple in preparation method and widely applicable to the field of environmental restoration.

The invention provides a composite material of shell micro powder filling bio-based resin and a method for preparing the same. The composite material comprises the following component in percentage by mass: (1) 20 to 60 percent of shell micro powder, 40 to 80 percent of bio-based resin, 1.5 to 8 percent of coupling agent and 0.2 to 0.4 percent of anti-oxidant; and or 20 to 60 percent of shell micro powder, 40 to 80 percent of bio-based resin, 0.6 to 3 percent of isocyanate, 0.05 to 0.1 percent of organic tin or organic stannous catalyst, and 0.2 to 0.4 percent of anti-oxidant. The invention also discloses a method for preparing the composite material. The method has the advantages of utilizing the ultrasonic cavitation to grind and disperse the shell micro powder, simultaneously accelerating the grafting or chemical bonding of the coupling agent or isocyanate on the surface of the shell micro powder, greatly shortening the modification time of the shell micro powder and the forming period of the composite material, and improving the interface compatibility and the bonding strength of the shell micro powder and the bio-based resin. The composite material is widely applied in fields of the production and consumption of automobile interior parts, stationery, road blocks, sporting goods, food bags, refuse bags, disposable tablecloth, outdoor flower pots, canteens, knives and forks and the like.

The invention discloses compound ionic liquid braunification liquid for printed-circuit boards. The braunification liquid comprises the following raw materials according to the mass concentrations in the braunification liquid: 70-120 g/L acidic functionalized ionic liquid, 5-20 g/L hydrogen peroxide, 5-15 g/L an ionic liquid corrosion inhibitor and 0.5-5 g/L ionic liquid binding force accelerant, wherein the acidic functionalized ionic liquid is imidazole functionalized ionic liquid with substituted sulfonic group with the side chain length of C2-C8 or substituted carboxylic group, pyridine functionalized ionic liquid or quaternary ammonium salt functionalized ionic liquid; the compound ionic liquid braunification liquid adopts sulfate radical, trifluoro sulfoacid radical and dihydrogen phosphate as negative ions; the density of the obtained braunification liquid is within 1-1.45 g/mL, the pH value is smaller than 4, and the copper loading capacity can reach up to 60 g/L; the braunification liquid has stable binding force with prepregs and good heat resistance, and has remarkable environment-friendly superiority due to the environment-friendly property and nonvolatility of the ionic liquid.

The present invention provides a polyolefin-based resin composition for metal coating, which is excellent in separation resistance, weather resistance and corrosion resistance, can be industrially produced without difficulty even by an existing apparatus, and is assured of excellent scratch resistance without using a surface coating agent; a resin film using the composition; and a resin-coated metal material. The polyolefin-based resin composition for metal coating comprises at least (A) a polyolefin-based resin, (B) a layered inorganic material, (C) an olefin-based oligomer containing a functional group having polarity and (D) a rubber-like elastic material.

The invention relates to the technical field of preparation of reinforcing materials for building structures, particularly to a preparation method of a high-temperature-resistant anchoring glue. According to the present invention, a modified epoxy resin is used as a matrix, modified diatomaceous earth powder and modified carbon fiber are used as filler reinforcing agents, cyclohexanone peroxide isused as an initiator, ethylenediamine is used as a curing agent, and benzyl triethyl ammonium chloride, benzyl alcohol and salicylic acid are mixed to form a curing accelerator, such that the anchoring glue with high mechanical property and high-temperature resistance is prepared; the epoxy resin is modified with a bismaleimide resin and a cyanate resin so as to improve the mechanical property ofthe epoxy resin and enhance the high-temperature resistance of the epoxy resin; the diatomaceous earth powder is modified with a silane coupling agent; and the carbon fiber is modified through nitricacid-ultrasonic synergistic treatment so as to improve the mechanical property of the anchoring glue, such that the mechanical strength and the high-temperature resistance of the anchoring glue are further improved, and the application prospects are broad.

The invention relates to the technical field of silicon dioxide aerogel preparation, in particular to a preparation method of high-strength spider silk composite silicon dioxide aerogel. The preparation method comprises the steps of preparing spider web felt from spider silk, modifying the spider web felt, allowing the modified spider web felt, silicic acid and hydrochloric acid to give a reactionto generate an orthosilicic acid precipitate to form a spider web felt reinforcement material rich in orthosilicic acid on the surface, and blending the reinforcement material and a composite siliconsource for reaction to prepare the high-strength spider silk composite silicon dioxide aerogel. Nano silicon dioxide generated by the reinforcement material under a high temperature condition can improve mechanical strength of the aerogel; hydrofluoric acid is added as a catalyst to improve porosity and adsorption activity of the aerogel; intermolecular attraction bond strength of the aerogel isimproved; a mechanical property of the silicon dioxide aerogel is further improved; and the aerogel has a wide application prospects.

The invention relates to a preparation method of wear-resistant, high-viscosity and anti-corona paint and belongs to the technical field of coating preparation. The preparation method has the advantages that microorganisms in biogas slurry are used to allow rice husks to be slightly corroded so as to allow the surfaces of the rice husks to have rich micropore structures, compatibility between resinification products on the surface and in the pores of modified silicon carbide and primer epoxy resin is high, nano attapulgite is used as the raw material and mixed with vegetable oil, the silicon carbide is prepared into the anti-corona paint by using the feature that the resistance of the silicon carbide evidently lowers along with the increasing of the strength of an externally applied electric field, and an extremely good anti-corona effect can be achieved; in addition, the silicon carbide and the attapulgite are high-temperature-resistant wear-resistant filler, the modified silicon carbide and the surface of the attapulgite have a large number of active groups, chemical bonding force can be generated between the active groups and active groups on the surface of a paint layer to forma compact cross-linked network structure, the high-temperature resistance and wear resistance of the anti-corona paint layer are increased greatly, and promising application prospect is achieved.

The invention relates to a preparation method of a high-strength paper packaging material, and belongs to the technical field of packaging products. The preparation method is characterized by firstly,using tetraethoxysilane as a silicon source, adding the silicon source into a mixed solution prepared from urea and an aluminum source-sodium metaaluminate, and synthesizing high-porosity zeolite byutilizing a hydrothermal method; secondly, blending the zeolite with illegal cooking oil, mildewing under the conditions of high temperature and high humidity, and then mixing a mildewed material withhelicase, thus obtaining zymolyte; finally, mixing the zymolyte with bagasse which is subjected to alkaline leaching for cooking, mixing a cooking material with other auxiliary materials for pulping,manufacturing paper with pulp, and sizing, thus obtaining the high-strength paper packaging material. The high-strength paper packaging material prepared by the invention is high in mechanical performance, is not easy to damage and has a wide application prospect.

The invention discloses a special impregnating agent for polycarbonate material reinforced basalt fibers and a preparation method of the impregnating agent. The impregnating agent comprises, by weight, 40-60 parts of film forming agent, 5-15 parts of coupling agent, 1-5 parts of lubricant, 10-20 parts of modifier and 30-50 parts of solvent. The modifier comprises organic acid salt, strong base and carbonyldiimidazole in the mass ratio of (3-6):(2-4):(1-3). The surfaces of the fibers are modified when the modifier is used for impregnating, so the roughness of the surfaces of the fibers is improved, a large number of active groups are grafted, accordingly chemical bending and mechanical riveting capacity between the basalt fibers and a polycarbonate material is improved, compatibility between the basalt fibers and the polycarbonate material is improved, and application and popularization of the basalt fibers in the polycarbonate material reinforcing field are promoted.

The invention relates to a preparation method of water-retentive high-toughness building mortar and belongs to the technical field of preparation of building materials. The preparation method comprises steps as follows: ramie fiber is taken as a raw material and is subjected to pressurized blasting and alkaline leaching in sequence, the ramie fiber after alkaline leaching is autoclaved, and toughed fiber is obtained; a mortar base material, collagen and biogas slurry are mixed and fermented, the mortar base material is modified with microorganisms, and a modified base material is obtained; finally, the modified base material and the toughed fiber are blended, a mixture is supplemented with other raw materials, and the water-retentive high-toughness building mortar can be prepared. The prepared water-retentive high-toughness building mortar is good in water-retaining property, excellent in toughness and good in bonding strength and has broad application prospect.

The invention discloses a high surface activity pitch-based graphite fiber and a preparation method thereof, and a resin-based composite material prepared based on the high surface activity pitch-based graphite fiber, and belongs to the technical field of preparation of carbon fibers. The preparation method comprises the steps of 1, using mesophase pitch as a raw material, and preparing pitch-based precursors with fiber diameters of 10 microns -30 microns via melt spinning; and 2, after winding the pitch-based precursors prepared in the step 1, sequentially performing active pay-off, non-melting treatment, low-temperature carbonizing treatment, high-temperature carbonizing treatment, graphitizing treatment, surface treatment (electrolysis), washing and drying, sizing and drying, and finalwinding, and thus acquiring pitch-based graphite fibers. According to the preparation method, via introduction of surface electrolysis and washing, under the condition that other performance of the pitch-based graphite fibers prepared according to the method are unvaried, the prepared resin-based composite material is greatly enhanced in interlaminar shear strength.

The invention discloses a phosphorous-containing and fluorine-containing polyarylether/nanometer hydroxyapatite composite material, and a preparation method and an application thereof in a dental implant. According to the invention, a novel phosphorous-containing and fluorine-containing polyarylether/nanometer hydroxyapatite composite material with different nanometer hydroxyapatites is synthesized through a solution blending method; the phosphorous-containing and fluorine-containing polyarylether/nanometer hydroxyapatite composite material with a best proportion is optimized; and the phosphorous-containing and fluorine-containing polyarylether/nanometer hydroxyapatite composite material has mechanical properties matching with the mechanical properties of human dentale, and has excellent biological activity and biological compatibility. The phosphorous-containing and fluorine-containing polyarylether/nanometer hydroxyapatite composite material provided by the invention contains element phosphorus and element fluorine required by human teeth, is endowed with high mechanical properties like elasticity modulus matching with the human dentale, has excellent biological properties, antibacterial characteristics, etc., thereby obtaining important application values in dental implant materials.

The invention discloses a composite internal-curing shrinkage-reducing anti-cracking agent for concrete and a production method of the composite internal-curing shrinkage-reducing anti-cracking agent, and belongs to concrete additives. The agent is prepared from the following components in parts by weight: a modified expanding agent, acrylic acid modified polypropylene fibers, graphene oxide and a polycarboxylic acid water reducing agent. The graphene oxide is used as an adsorption point to adsorb acrylic acid modified polypropylene fibers to form a three-dimensional network branch-tendril-shaped capillary structure, and countless uniformly-distributed micro water storage tanks are formed in the concrete, so that the hydration reaction of a cementing material is promoted to the greatest extent, and the deformation performance, the crack resistance and the durability of the concrete are obviously improved.

The invention relates to a preparation method of a wrinkled polyhedral cobalt sulfide electrode material. The preparation method comprises the following steps of: step 1, dissolving cobaltous acetatetetrahydrate and thiourea in ethanol to obtain a solution A, wherein a molar ratio of Co<2+> to S<2-> in the solution A is 1: (0.5-0.7); step 2, adding 2-methylimidazole with the concentration of 0.4mol/L-0. 8mol/L into the solution A to prepare a mixed solution, wherein a volume ratio of the solution A to a 2-methylimidazole aqueous solution is (6-8):(2-3); step 3, adding carbon cloth into the mixed solution, and heating the mixture for reaction; and step 4, after the reaction is finished, taking out the carbon cloth, cleaning and drying the carbon cloth to obtain the wrinkled polyhedral cobalt sulfide electrode material step. According to the preparation method, the carbon cloth is used as a self-supporting base body, cobalt sulfide grows on the surface of the carbon cloth, the manufacturing steps are reduced, the 2-methylimidazole aqueous solution is added in the preparation process, a redundant cobalt source fully reacts to form a Co-MOF precursor, cobalt sulfide grows on the surface of a Co-MOF sheet, the Co-MOF sheet is recombined into a polyhedral structure, and a polyhedral structure is formed.

The invention belongs to the field of rock wool board materials, and particularly relates to a preparation method of a high-strength damp-proof rock wool board. The method comprises the following steps: with cotton straw as a raw material, chopping the cotton straw by using a fodder chopper and then conducting grinding and mashing by using a stone mortar to obtain pretreated cotton straw; mixing the obtained pretreated cotton straw with pectinase and deionized water and then carrying out enzymolysis; performing concentrating to obtain an enzymolysis concentrate; oxidizing the concentrate withpotassium permanganate to obtain filter residues; subjecting the filter residues, a sodium silicate solution and hydrochloric acid to mixing, heating and reacting to obtain self-made functional filler; and finally, blending the self-made functional filler and other raw materials, and conducting pressing and dehydration to obtain the high-strength damp-proof rock wool board. The rock wool board prepared through the method is good in damp-proof performance, high in mechanical strength and wide in application prospect.

The invention discloses a preparation method of a reinforced rubber sheet bonding layer material and belongs to the technical field of bonding material preparation. The preparation method is characterized in that the polarity of a rubber sheet is reduced by introducing nonpolar peach gum by virtue of strong polarity of butadiene-acrylonitrile rubber in the reinforced rubber sheet bonding layer material, formation of the rubber sheet is facilitated, the butadiene-acrylonitrile rubber also can serve as a toughening agent and forms one toughened granular dispersion phase in a continuous phase of terpene resin, so that the terpene resin is in a multiphase structure, and toughening effect is realized; then the surface of peach gum is modified by lard oil under the action of microorganisms, quantity of oleophilic ester groups is increased, and a chemical bonding force between the surface of the peach gum and an oil surface steel plate base is improved, so that the bonding force is enhanced; and the terpene resin has excellent bonding performance and mechanical properties, so that adhesion of a reinforced rubber sheet is further improved, the problem of fall off can not be produced during application, and the reinforced rubber sheet bonding layer material has a broad application prospect.

The invention relates to the technical field of magnetic material preparation, in particular to a preparation method of a high-performance gyromagnet ferrite material. The preparation method includes:processing aloe to allow the aloe to grow a large number of root hairs, then using a metal salt solution to spray the aloe, using the root hairs of the aloe to enrich and absorb metal ions to obtainthe aloe root hairs rich in bismuth, zinc and aluminum ions, subjecting the aloe root hairs and rice husks rich in silicon to blending fermentation, using microorganisms to degrade the aloe root hairsand the rice husks, fermenting to obtain a fermentation product containing bismuth, zinc and aluminum ions and silicon, pre-sintering to obtain ferrite preform, blending the ferrite preform and the fermentation product, performing high-pressure compression molding, drying, and sintering under the sintering temperature of about 900 DEG C to obtain the high-performance gyromagnet ferrite material.The preparation method has the advantages that the prepared gyromagnet ferrite material is high in crystallinity degree, high in compactness, large in grain size, high in final saturation magnetization intensity, low in coercivity and promising in application prospect.

The invention discloses a fireproof tent fabric and a preparation method thereof, and relates to the field of fabrics. The preparation method comprises the following steps: firstly, coating polyester fibers of the tent fabric with a layer of epoxy resin, standing for a period of time, then coating the polyester fibers coated with the epoxy resin with a layer of flame-retardant epoxy resin cured material which is modified with butyl titanate, starch-coated mesoporous calcium carbonate and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide again, standing for a period of time, finally coating the polyester fibers of the tent fabric with a layer of porous epoxy resin which is obtained by curing sorbitan monolauric acid and silicon dioxide, so as to obtain the fireproof tent fabric. The fireproof tent fabric has better flame retardant property, moisture resistance and thermal stability.