13results about How to "Abundant raw materials" patented technology

This invention relates to the field of heavy metal contaminated water or soil remediation technology, and discloses the application of magnesium-based cementitious materials in heavy metal ion remediation in ultra-stable mineralized environments. This invention can achieve good heavy metal adsorption effects in a short time, without the release of toxic substances or secondary pollution, and is suitable for the remediation of heavy metal contaminated water or soil.

The application discloses a drilling cementing wall stabilizing agent and a preparation method and application process thereof, and belongs to the technical field of oil field chemistry, and particularly relates to a preparation of the drilling cementing wall stabilizing agent. The preparation method of the drilling cementing wall stabilizing agent can be that thermoplastic resin, a curing agent and inorganic powder are uniformly mixed and stirred at normal temperature and normal pressure according to proportions. The wall stabilizing agent material has the advantages of simple production process, safety, low material cost and convenience for large-scale production and application. The product can not only plug pores and reduce filtration loss, but also cement sand and mudstone strata and improve stratum pressure-bearing capacity, so that the purpose of stabilizing a well wall is achieved. The application further provides an application process of the drilling cementing wall stabilizing agent, which comprises a suitable drilling fluid system and an adding amount and construction process under different stratum porosities and different working conditions.

A Panax notoginseng polysaccharide iron nanoparticle preparation, its preparation method, and its application are disclosed. This invention can effectively prepare Panax notoginseng polysaccharide iron nanoparticles, solving the application problem in the preparation of drugs for treating iron deficiency anemia, inflammatory bowel disease-related anemia, iron deficiency anemia-related colitis, inflammatory anemia, or inflammatory bowel disease. The specific steps are as follows: The crude Panax notoginseng polysaccharide solution is purified using conventional purification methods to obtain purified Panax notoginseng polysaccharide. This purified polysaccharide is dissolved in ultrapure water, and an iron source is added under inert gas protection. After co-precipitation and chemical reduction reactions, the pH value is adjusted, and iron nanoparticles are loaded onto the Panax notoginseng polysaccharide to obtain Panax notoginseng polysaccharide-coated iron nanoparticles. The preparation method of this invention is simple, uses abundant raw materials, and has low production costs. It represents a major innovation in drugs for treating iron deficiency anemia and inflammatory bowel disease-related iron deficiency anemia, and has practical application value.

This invention relates to a temperature monitoring material with photochromic properties, its preparation, and its application, belonging to the interdisciplinary field of temperature monitoring and sensing technology. The chemical formula of this dosimeter material is CaF2:xNa. + The material is first uniformly ground manually or mechanically, then dried by baking or air drying, and finally pressed into a preform. After sintering, a temperature monitoring material with photochromic properties is obtained. The prepared product exhibits excellent performance in terms of tissue equivalence, temperature response speed, cost control, and portability. It has a temperature response range of 50-200℃, and the temperature information can be intuitively read through visually perceptible color changes, making it suitable for large-scale preparation and a wide range of applications.

A method for preparing colored radiant cooling wood is disclosed. The purpose of this invention is to solve the application problems of existing microstructured colored radiant coolers, such as difficulty in preparation, high production costs, and lack of environmental friendliness. The preparation method includes: 1. Immersing dried wood in a lignin removal solution under vacuum conditions, followed by a water bath reaction at 75–80°C; 2. Dispersing fluorescent dye in an organic solvent, mixing it with methyl methacrylate monomer, adding the initiator azobisisobutyronitrile (AIBN), and prepolymerizing at 70–90°C; 3. Permeating the delignified wood into a prepolymerized dye / MMA mixed solution under vacuum; 4. Heating and polymerizing at 70–90°C. The delignified wood used in this invention is green and environmentally friendly. While maintaining excellent mechanical strength, the shape and size of the colored radiant cooler can be rationally set according to the needs of different scenarios, taking into account both flexibility and toughness, and is cost-effective.

This invention discloses a method for preparing and applying crude and homogeneous polysaccharides of *Mesona chinensis* that regulate *Bacteroides*. The method includes the following steps: pulverizing *Mesona chinensis* herb, extracting by reflux with deionized water, filtering out the residue, concentrating to 1 / 4 of the volume, adding ethanol to 80% by volume, stirring evenly, letting stand overnight, centrifuging the precipitate, washing three times with anhydrous ethanol, ethyl acetate, and acetone respectively, dissolving in an appropriate amount of deionized water, and freeze-drying to obtain crude *Mesona chinensis* polysaccharide. The obtained crude *Mesona chinensis* polysaccharide is diluted with deionized water and dialyzed using dialysis bags in the range of 7000D, 100000D, 300000D, and 500000D respectively. The solutions are combined, concentrated, and freeze-dried to obtain homogeneous polysaccharides of *Mesona chinensis* with different molecular weights. The prepared crude and homogeneous polysaccharides of *Mesona chinensis* have good antioxidant capacity and can promote the growth of *Bacteroides* in the gut. In vitro experiments verified that the metabolites of *Mesona chinensis* polysaccharide have good lipid-lowering activity.

The application aims to provide a preparation method and application of an oral engineering probiotic system for producing active substances in situ metabolism of tumors. First, the probiotic is cultured, the CES gene is inserted into a plasmid as a target gene, the plasmid containing the CES gene is transfected into a probiotic competent cell by a heat shock method, the engineering probiotic capable of continuously and stably expressing carboxylesterase is obtained, and the oral engineering probiotic system is prepared by coating the engineering probiotic with a natural high molecular material, mercapto hyaluronic acid. The preparation method is scientific and reasonable, raw materials are abundant, and the preparation is easy to produce. The preparation method enhances the chemotherapy effect of colorectal cancer and reduces the toxic side effects caused by the distribution of chemotherapy drugs in other tissues and organs, provides new technical support for the treatment of colorectal cancer, is an innovation in oral microecological preparation drugs, and has great economic and social benefits.

The invention relates to a high polymer material, in particular to a preparation method of a castor oil-based antifouling wear-resistant polyurethane-urea coating based on main chain end capping, which comprises the following steps: 1, preparing an NCO end-capped prepolymer, 2, preparing a BPAE-X prepolymer, 3, preparing polyurethane-urea coating resin, 4, preparing an anti-fouling wear-resistant polyurethane-urea coating resin, 5, preparing an anti-fouling wear-resistant polyurethane-urea coating resin, 6, preparing an anti-fouling wear-resistant polyurethane-urea coating, the preparation method of the castor oil based antifouling polyurethane-urea coating with excellent wear resistance, provided by the invention, is scientific and reasonable, rich in raw materials, green and environment-friendly, pollution-free, easy to produce and prepare, reusable, capable of reducing the reaction cost, long in resin curing operation time, wide in application range and good in application prospect; the preparation method is an innovation in preparation of the antifouling polyurethane-urea coating and has remarkable economic and social benefits.

This invention discloses a modified tea stem hydrothermal char, its preparation method, and its application in removing Cr(VI) from water. The invention first involves uniformly mixing tea stem powder, sodium hydroxide, and an aqueous solution of 3-chloro-2-hydroxypropyltrimethylammonium chloride in an aqueous solution. Then, a simple one-step hydrothermal amination method is used to prepare modified tea stem hydrothermal char with a surface rich in quaternary ammonium groups, carboxyl groups, and hydroxyl groups. This modified char serves as an adsorbent for Cr(VI) in water, achieving an adsorption capacity of 240.85 mg / g for Cr(VI) in water. ‑1 The adsorption equilibrium time is 24 hours. It can be used in the treatment of Cr(VI)-containing wastewater. The preparation method of this invention has the advantages of simple process, abundant raw materials, low cost, and large-scale production. It also opens up new avenues for the resource utilization of tea stems, realizing waste-to-waste treatment.

A method for extracting two tocopherol derivatives A and B from Epimedium sagittatum and application thereof can effectively solve the problem of preparing tocopherol derivatives A and B from Epimedium sagittatum and realize the application in preparing anti-breast tumor drugs. The method is as follows: the aboveground part of Epimedium sagittatum is crushed, extracted by refluxing with ethanol, recovered under reduced pressure, extracted, separated by chromatography, eluted by gradient, recovered under reduced pressure, identified by thin layer spotting, combined, purified, collected in the retention time, dried, and obtained. The raw material is abundant, the preparation method is easy to operate, the obtained product is good in quality and good in use effect, can be effectively used for treating breast cancer, realizes the application in preparing anti-breast cancer drugs, develops the medicinal value and commercial value of Epimedium sagittatum, and has remarkable economic and social benefits.

The present application relates to the technical field of preparation of intelligent sensing actuator, and particularly relates to a self-repairing hydrogel capable of being stimulated to enhance and heat actuation and a preparation method thereof. The present application combines three strategies of unique water-ethanol solvent exchange induced supramolecular reconfiguration, temperature change induced hydrophilic / hydrophobic conversion and construction of dynamic reversible borate ester bond, and develops a new type of biomimetic intelligent material. The material has excellent formability in the state of soft gel, reversible ethanol stimulation enhancement, good braking and self-repairing properties.

This invention belongs to the field of coloring pigments and their preparation technology, specifically relating to an ion-absorbing silicate coloring pigment. The general formula of its initial raw materials is: x AX 1 / δ · m MX 2 / δ · n SiX 4 / δ · y REX 2或3 / δ A carbon source is added, and the mixture is calcined at 900-1500℃ in an inert or reducing atmosphere for 1-50 h to obtain an ion-absorbing silicate coloring pigment. The resulting pigment can achieve continuous coloring in the blue-green to red-orange visible light region under sunlight. This ion-absorbing silicate inorganic coloring pigment is non-toxic, exhibits strong absorption in the blue-green light region with a wide absorption band, and overcomes the shortcomings of the aforementioned functional luminescent pigments, such as weak light absorption, extremely poor coloring performance, and unstable coloring. It also possesses many advantages that make it an ideal coloring pigment, including abundant and inexpensive raw materials, stable physicochemical properties, simple synthesis conditions, good compatibility with glass and ceramics, and environmental friendliness during preparation and use.