5results about How to "Improve macro performance" patented technology

The invention belongs to the technical field of concrete, and particularly relates to high-specific-gravity self-compacting concrete and a preparation method thereof. The high-specific-gravity self-compacting concrete is prepared from the following raw materials in parts by mass: 560 to 671 parts of natural coarse aggregate, 725 to 906 parts of iron ore, 300 parts of natural fine aggregate, 446 parts of steel slag sand, 383 parts of cement, 0 to 54 parts of steel slag powder, 107 parts of fly ash, 2.6 to 13.6 parts of water reducing agent and 150 to 182 parts of water. The performance of the concrete is greatly improved by improving the microcosmic performance of the concrete and grading of all the components, and the purposes of reducing the use amount of cement, reducing shrinkage and creep of the concrete, reducing CO2 emission, saving energy, protecting the environment and achieving green construction are achieved while high specific gravity, self-compaction and high strength of the concrete are achieved.

The invention discloses a preparation method of intermediate carbon microspheres, which comprises the following steps of: preparing precursor asphalt by taking naphthenic base aromatic hydrocarbon-rich heavy oil as a raw material and adopting a low-temperature thermal polycondensation process; the preparation method comprises the following steps: carrying out fluidized bed hydrotreatment on precursor asphalt under proper reaction conditions by matching with a proper isomerization functional catalyst and a molecular sieve catalyst to obtain refined aromatic hydrocarbon-rich distillate oil with a boiling range of more than 400 DEG C, and taking the refined aromatic hydrocarbon-rich distillate oil as a raw material; the preparation method comprises the following steps: carrying out a catalytic polycondensation reaction under the dual catalytic action of a heteropolyacid aluminum salt catalyst and a heteropolyacid ferric salt catalyst to obtain intermediate pitch, extracting the intermediate pitch through an extraction solvent, removing isotropic pitch components to obtain green carbon microspheres, and finally carrying out carbonization treatment on the green carbon microspheres to obtain the mesocarbon microbeads. The invention provides a brand new aromatic hydrocarbon-rich raw material refining treatment process through technical coupling, has the advantages of wide raw material application range and high production efficiency, and opens up a new path for low cost and high quality of mesocarbon microbeads.

This invention provides a composite biosynergist, its preparation method, and its application. The composite biosynergist is composed of polyglutamic acid, humic acid, fucoidan oligosaccharide, and plant polyphenols. The synergistic effect of the active substances polyglutamic acid γ-PGA, humic acid HA, fucoidan oligosaccharide AOS, and plant polyphenol PP in the composite biosynergist is essentially manifested in microscopic-scale functional complementarity and mechanism closed-loop. It achieves four functional pathways: blocking salt toxicity through chelate channels, ensuring nutrient supply through complexation channels, enhancing nutrient absorption through root-promoting channels, and resisting stress damage through stress-resistant channels. Ultimately, it achieves the macroscopic effect of "improved soil physicochemical properties—enhanced root function—increased crop stress resistance and yield." Its core advantage lies in overcoming the functional limitations of single components and solving the industry pain points of "difficult-to-eliminate salt damage, easy nutrient loss, and unstable improvement effect" in saline-alkali land improvement through molecular-level synergistic effects.

The invention provides a base material phosphorus segregation repairing method for producing an OLED metal mask plate, and relates to the technical field of metal mask plates. The invention provides a base material phosphorus segregation repairing method for producing an OLED (Organic Light Emitting Diode) metal mask plate, which comprises the following steps: carrying out low-tension high-temperature annealing treatment on an alloy raw material, applying low tension to the alloy raw material, and carrying out preheating, heating, heat preservation and cooling on the premise of keeping the low tension of the alloy raw material; and after low-tension high-temperature annealing treatment, high-tension low-temperature annealing treatment is conducted on the alloy raw material, high tension is applied to the alloy raw material, and preheating, heating, heat preservation and cooling are conducted on the premise that the high tension of the alloy raw material is kept. And the technical effect of relieving phosphorus segregation is achieved.

The invention provides an integrated variable-viscosity polymer thickening agent and a preparation method thereof. The integrated variable-viscosity polymer thickening agent is specifically prepared from the following raw materials: acrylamide, N-benzyl-N-methacryloyloxy-N, N-dimethylamino ammonium chloride, docosyl polyoxyethylene ether methacrylate, azobis (isobutylamidine hydrochloride) and solvent deionized water. The prepared thickening agent has a good thickening effect, is resistant to high temperature, shear and salt, can be used as a drag reducer at a low concentration, and can be used as a thickening agent at a high concentration. The thickening agent prepared by the invention can be operated under the conditions of high temperature and high salinity, and has good compatibility with stratum. According to the invention, the polymer with large relative molecular mass, high cationic degree and good stability is obtained. The preparation equipment is simple in process, relatively low in price, easy to operate, less in pollution and easy for industrial production.