199results about How to "Less heat release" patented technology

The invention provides a preparation method of a metal resin complex and the metal resin complex prepared thereby. The preparation method of the metal resin complex comprises the following steps: S1, micropores are formed on the surface of a pretreated metal substrate, and the metal substrate is an aluminum alloy substrate or aluminum substrate; S2, the metal substrate having the micropores on the surface thereof and obtained by the step S1 is soaked in a water-soluble polymer solution for modification; and S3, the surface of the treated metal substrate modified by soaking in the step S2 is coated with a resin composition, and after molding the metal resin complex is obtained. In the metal resin complex, the binding force between metal and resin is strong, and the process is simple, is easy for large-scale production, and has no pollution.

The present invention discloses an injectable-porous-drug loaded polymethyl methacrylate-based composite scaffold bone transplant material and a preparation method thereof, and belongs to the field of organic functional materials preparation. The polymethyl methacrylate-based composite scaffold bone transplant material uses polymethyl methacrylate (PMMA) as a scaffold for providing mechanical supporting, and a chitosan-based thermosensitive hydrogel as a pore forming agent and an osteoconductive material and a drug carrier, and the polymethyl methacrylate (PMMA) and the chitosan-based thermosensitive hydrogel are mixed with each other to form an injectable-porous three-dimensional structural bone cement composite. The scaffold bone transplant material is simple in preparation method, suitable in reaction temperature, and good in biocompatibility, has matched mechanical properties, good biological mineralization and corresponding anti-bacterial, anti-inflammatory or anti-tumor capabilities, and has broad prospects in clinical application of reconstruction of bone tissues in future.

The invention discloses a branched polyacrylic acid dispersant, and a preparation method and application thereof. According to the invention, polyene monomers are introduced into molecular chains of a linear sodium polyacrylate dispersant so as to obtain a branched dispersant structure which allows the branched polyacrylic acid dispersant to better clad cross sections newly occurred after grinding, and therefore, grinding and dispersing efficiency is improved; furthermore, methacrylic acid, maleic anhydride, fumaric acid, itaconic acid, sodium methylacrylsulfonate, 2-acrylamide-2-methylpropanesulfonic acid (AMPS) and the like are introduced and can provide monomers with stronger negative charges, improve electrostatic repulsion action of double electric layers, mitigate agglomeration among calcium carbonate particles and reduce the viscosity of ground slurry. The dispersant provided by the invention enables high efficiency in grinding of calcium carbonate to be obtained and the slurry to have the characteristics of low viscosity, good dispersibility and stability.

The invention relates to a catalyst for manufacturing maleic anhydride through the high-load and high-yield benzene gas-phase oxidation. A fixed-bed tubular reactor sequentially comprises an A section and a B section which are composed of catalysts with different performances along the inlet direction of reaction mixture gas; the A section is 40 to 60 percent of the total bed height, and the B section is 60 to 40 percent of the total bed height. The catalyst in the A section has the active phase composition that the ratio of V2O5:MoO3:P2O5:Na2O:NiO:Re2O3 equals to 1:(0.4 to 0.9):(0.01 to 0.08):(0.05 to 0.100):(0.005 to 0.500):(0.0001 to 0.0010), wherein, Re is any two of following rare earth elements that are Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu. The catalyst in the B section has the active phase composition that the proportion of the Re2O3 is 2 to 3 times of that of the Re2O3 in the A section, the proportion of the P2O5 is (0.005 to 0.040)mol, and the proportions of other oxides are the same with that in the A section. The catalyst can lead maleic anhydride production equipment to increase about 25 percent production capacity without increasing any investment, and the benzene consumption and the energy consumption can be obviously reduced.

The invention provides a hot-melt welding flux for copper-clad steel grounding net welding, which belongs to the field of metal welding. The prior hot-melt welding flux for copper-clad steel grounding net welding has the problems of violent reaction, huge heat release, high noise, poor corrosion resistance and the like. The hot-melt welding flux consists of hot-melt solder and detonator, wherein the hot-melt solder consists of the following materials in weight percentage: 30 to 40 percent of copper oxide powder, 8 to 11 percent of metal aluminum powder, 20 to 35 percent of metal copper powder, 5 to 10 percent of fluorite powder, 4 to 10 percent of tin powder and 5 to 10 percent of nickel powder. The hot-melt welding flux has the advantages of proper reaction speed, low heat release, low noise, good corrosion resistance and the like.

The invention relates to hybrid pre-polymers and polymers produced by converting difunctional, oligofunctional and/or polyfunctional cyanates and/or pre-polymers thereof with monomer, oligomer and/or polymer silazanes. The polymers are duromers having high glass transition temperature and very high fracture toughness from the respective cyanate output materials. They can be dissolved in a pre-polymerized state in solvents and are therefore suitable as impregnating resins for prepregs, for example. In addition, they can be processed to moulded articles. The fire characteristics thereof are particularly exceptional.

The invention relates to the technical field of a lithium ion power battery, and particularly relates to a flexible-packaged high-power lithium iron phosphate power battery. The flexible-packaged high-power lithium iron phosphate power battery comprises a positive electrode plate, a negative electrode plate, a diaphragm, an electrolyte, tabs, and an aluminum plastic film, wherein the surface of a current collector of the positive electrode plate is pre-coated with a conductive coating and then coated with a positive electrode material. Each of both the positive electrode material and a negative electrode material comprises the following compositions in percentage by weight: 88-92% of active substances, 3-6% of a binder and 4-8% of a conducting agent. Through applying the modified positive electrode material, the surface of a current collector of the positive electrode plate is pre-coated with the conductive coating, so that the conductivity performance of the positive electrode material can be improved, the internal resistance of the battery can be effectively reduced, and heat release of the battery when in high-rate discharge is reduced. A mixture formed by mesophase carbon microbeads, artificial graphite and hard carbon according to certain ratio is adopted as the negative electrode material, so that a good solid electrolyte membrane is favorably formed, and the high-rate cycle performance of the battery can be improved through adding a certain amount of hard carbon.

The invention provides a surface treated metal and a surface treatment method thereof and a metal resin complex and a preparation method of the metal resin complex. The surface treated metal comprises a metal body and an anodic oxidation film layer which is located on the surface of the metal body, the anodic oxidation film layer includes a barrier layer which is in contact with the metal body and a loose layer located on the outer surface of the barrier layer, the loose layer contains anodic oxidation film micropores, the pore diameter of the anodic oxidation film micropores is 10 nm-800 mum, the barrier layer contains barrier layer corrosion pores, the pore diameter of the barrier layer corrosion pores is 10 nm-800 mum, the metal body includes a corrosion layer which is in contact with the barrier layer, the corrosion layer contains metal corrosion pores, the pore diameter of the metal corrosion pores is 10 nm-1 mm, the metal is aluminum alloy or aluminum, the bonding force between the metal and resin is strong, and the surface treated metal is simple in process, is easy for large-scale production, and has no pollution.

The invention relates to a processing method before the application of hydrogenation catalyst, comprising the detailed process as follows: organic solvent, elemental sulfur and water are introduced in oxidated hydrogenation catalyst; subsequently, heating predisposal is carried out under a certain condition. The processing method before the application of the hydrogenation catalyst loads the sulfur-contained substance such as the elemental sulfur to the hydrogenation catalyst; a certain interaction is generated and little heat is discharged; and the water vapor which is generated during the heat disposal process of the added water adjusts the interaction of the sulfur and the catalyst and reduces the heat discharging degree during the heat disposal process. Compared with the prior art, the catalyst obtained by the method has the advantages of high utilization ratio of the sulfur-contained matter, gradual increment of the temperature of the catalyst bed and high activity of the catalyst when the activation is applied. The method can be used for processing before the application of various hydrogenation catalysts.

The invention provides a preparation method of a metal resin complex and the metal resin complex prepared thereby. The preparation method of the metal resin complex comprises the following steps: S1, anodic oxidation: a metal substrate with a surface comprising an anodic oxidation film layer is obtained by anodic oxidation of a pretreated metal substrate, and the metal substrate is an aluminum alloy substrate or aluminum substrate; S2, treatment with phosphoric acid: the metal substrate containing the anodic oxidation film layer and obtained by the step S1 is immersed in a phosphoric acid solution for treatment to obtain a surface treated metal substrate; and S3, injection: the surface of the surface treated metal substrate is injected with a resin composition, and then the metal resin complex is obtained after molding. In the metal resin complex, the binding force between metal and resin is strong, and the process is simple, is easy for large-scale production, and has no pollution.

The invention relates to a new solar energy thermal supercritical low-temperature air energy power generator which comprises a heat absorber, an expansion generator unit, a heat regenerator, a cooler, a booster pump, a refrigerator and pipeline accessories thereof and a detection and control device; and a nitrogen or mixed working medium is filled in a closed system. The working medium becomes high-pressure supercritical fluid through passing through the heat absorber, also becomes a working medium in the supercritical state through the work application and power generation of the expansion generator unit, is pressed into the heat regenerator by the booster pump for heat exchange through being condensed by the heat regenerator and the cooler and then is thermally absorbed by the heat absorber to form a closed cycle power generation system. The power generator also can be used for low-temperature heat source power generation in excess heat, waste heat, terrestrial heat and the like; and the working medium adopts carbon dioxide or mixed working medium. The supercritical low-temperature air energy power generator can generate cool air. With the adoption of the supercritical low-temperature air energy power generator, the working medium is condensed under the supercritical state, release a small quantity of heat and can circularly utilize the condensation heat. Therefore, the supercritical low-temperature air energy power generator has high thermoelectric efficiency, high energy conversion density, low unit power investment and low cost and uses less power during the cool air generation process. The supercritical low-temperature air energy power generator successfully breaks through the key technical difficulty of low thermal efficiency during the low-temperature solar energy thermal power generation.

The invention relates to a purification adsorbent based on a mesoporous molecular sieve material and a preparation method and application of the purification adsorbent based on the mesoporous molecular sieve material. The purification adsorbent based on the mesoporous molecular sieve material is characterized by comprising the following components in percentage by weight: 20%-60% of a mesoporous molecular sieve, 35%-75% of activated aluminum oxide and 3%-20% of metal components. The preparation method of the purification adsorbent based on the mesoporous molecular sieve material is characterized by comprising the following steps: firstly, mixing the mesoporous molecular sieve material, the activated aluminum oxide and the metal components, then carrying out extruding or disc granulation, and finally aging and activating so as to obtain an adsorbent product which is applicable to a temperature variation adsorption or pressure variation adsorption technology, and can work under a gas phase or liquid phase condition. Compared with the prior art, the prepared adsorbent containing the mesoporous molecular sieve has the advantages of being large in adsorption material duct, more beneficial to the adsorption of macromolecular impurities (such as disulphide), uniform in adsorption duct distribution, low in heat adsorption effect, and the like and has the deep adsorption function.

The invention discloses an artificial stone and a preparation method thereof. The artificial stone comprises the following raw materials in percentage by weight: 30-60% of quartz, 30-60% of crushed glass, 5-10% of alloy resin, 0.01-3% of alloy powder, 0.01-0.5% of pigment, 0.01-0.5% of a coupling agent and 0.01-0.5% of a curing agent. The artificial stone has the characteristics of art attractiveness, health and environment-friendliness. Due to addition of the alloy powder and the alloy resin in the formula, the artificial stone has an outstanding antibacterial function, is relatively high in anti-permeability and moisture resistance, long in service life and relatively good in glossiness, fullness and moisturizing property, the waste glass and the waste gel can be utilized again, thus being energy-saving and environmentally friendly; flowers can be also made according to demands, and thus artificial stone with patterns can be manufactured.

The invention discloses a quick-setting epoxy grouting mortar suitable for summer first-aid repair construction. The quick-setting epoxy grouting mortar is formed by mixing of a resin component A, a curing agent component B and a bone powder component C in a mass ratio of 1:(0.2-0.26):(5-7) during use. Specifically, the component A comprises the following components by weight: 100 parts of modified epoxy resin, 1-15 parts of an alcohol ether composite diluent, 1-3 parts of a coupling agent, and 0.5-3 parts of a rheological agent; the component B comprises the following components by weight: 16-23 parts of a modified polyamine curing agent, and 1-3 parts of an accelerator; and the component C comprises the following components by weight: 1-23 parts of dolomite powder, 15-46 parts of bariumsulfate powder, 10-121 parts of cement, 385-588 parts of sea sand, and 0.1-1.5 parts of a defoamer. The quick-setting epoxy grouting mortar provided by the invention has the technical characteristicsof short curing time, high hour strength, and no flash polymerization during high temperature construction, at the same time is non-toxic and harmless, and is simple to prepare, and is widely applicable to concrete structure repair with quick-setting and early strength requirements and construction of installation and anchoring projects, especially suitable for summer repair construction.

Provided are stainless steel-resin composite and method of preparing the same. The method comprises steps of: providing a stainless steel substrate; spraying aluminum particles onto a first surface of the stainless steel substrate via thermal spraying to form an aluminum layer on the first surface of the stainless steel substrate; removing the aluminum layer via dipping the stainless steel substrate into an alkaline solution with a p H value greater than or equal to 10 so as to form a porous surface; and injecting a resin composition onto the porous surface of the stainless steel substrate so as to form a resin layer.

A curable composition comprising a benzoxazine compound and a pentafluoroantimonic acid catalyst is described. The curable composition may be cured to produce cured compositions useful in coating, sealants, adhesive and many other applications.

The invention discloses a method and kit for utilizing a Mo-Sb antiluminosity method to detect a content of orthophosphate in water. The method comprises blending ammonium molybdate, antimony potassium tartrate and ascorbic acid to make a color developing agent, adding the color developing agent into a to-be-measured water sample to blend the color developing agent, then adding benzene sulfonic acid to enable the pH to be 0-1, fully blending and standing for over 3min, utilizing a spectrophotometer to measure the absorbance at the position of 880nm, and obtaining the content of orthophosphate in the to-be-measured water sample through an absorbance value according to a pre-measured standard curve. According to the method, by improving a strong acid medium, operation in measuring orthophosphate in the Mo-Sb antiluminosity method is simplified, danger is lowered, the detection speed is improved, and field operation is facilitated.