9results about How to "Good amphipathy" patented technology

The invention relates to the technical field of emulsion preparation, and discloses a metal-polyphenol network graphene oxide Janus nanosheet as well as a preparation method and application thereof, GO JNSs is taken as a solid emulsifier to encapsulate EOs, the problems that EOs are easy to volatilize and poor in water solubility at normal temperature can be solved, and the metal-polyphenol network graphene oxide Janus nanosheet and auxiliaries in a system can achieve a synergistic effect to resist bacteria. The Pickering emulsion containing GO JNSs has good emulsion stability, has excellent hydrophilicity and adhesion performance of polyphenol, can significantly enhance the wetting and spreading effects of emulsion droplets on leaf surfaces, and inhibits rebounding and splashing of the liquid droplets. The preparation process of the GO JNSs and the JNSs-EU-PE is simple, the process is environment-friendly, and the GO JNSs and the JNSs-EU-PE have industrial production prospects.

The invention relates to a pH response type ionic-nonionic segmented copolymer dispersing agent and a preparation method and application thereof.The preparation method comprises the steps that firstly, a nonionic polymer is prepared from an RAFT chain transfer agent and a monomer acryloyl morpholine (ACMO), then two ionic monomers including methacrylic acid (MAA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) are embedded, and the pH response type ionic-nonionic segmented copolymer dispersing agent is obtained; a block polymer is formed with ionic and non-ionic distinguishing. The prepared pH response type ionic-nonionic polymer has different turbidity and surface activity under different pH values under the influence of the pH value, can be used as a dispersing agent of micro manganese and other weighting materials, obviously prolongs the static settling suspension effect, and reduces the particle size.

The invention provides glutamic acid esterified cellulose, a composite fiber and a preparation method and application thereof, and relates to the technical field of composite fiber preparation. According to the preparation method, glutamic acid esterified cellulose is prepared firstly, then the glutamic acid esterified cellulose, keratin and cellulose are used together to prepare the composite cellulose, and the glutamic acid esterified cellulose can be used as an emulsifier in the process, so that the compatibility between the keratin and the cellulose is improved, and the keratin and the cellulose can be combined together; the characteristics of high toughness of the keratin fiber and high strength of the cellulose are greatly utilized, and finally the composite fiber with high strength and high toughness is prepared; secondly, by regulating and controlling the modification degree of the cellulose in the preparation process of the glutamic acid esterified cellulose and the adding amount of the glutamic acid esterified cellulose, precise regulation and control of the performance of the composite fiber are achieved, and it is ensured that the composite fiber with the excellent performance is prepared.

The application belongs to the technical field of demulsification dehydration, and discloses a preparation method of a demulsifier and application of the demulsifier in asphalt mixture. The preparation method of the demulsifier comprises the following steps: reacting acidified clay minerals with gamma-methacryloxypropyltrimethoxysilane to obtain modified clay minerals; reacting the modified clay minerals with triethylenetetramine to obtain polyamine-based clay minerals; and reacting the polyamine-based clay minerals with bromohexadecane to obtain the demulsifier. The demulsifier is a polyquaternary ammonium salt type cationic demulsifier. Through the positive charges of cations contained on the surface of the clay minerals and quaternary ammonium salts, the double electric layer structure of the surface of anionic emulsified asphalt is changed, the thickness of the double electric layer is compressed, the electrostatic repulsion between the emulsified asphalts is reduced, and the demulsification effect is good. When the asphalt mixture is prepared, the adhesion of asphalt particles to aggregates can be effectively promoted, the water in the asphalt mixture can be effectively discharged, and the solidification and molding of the asphalt mixture can be accelerated.

The present invention addresses the problem of providing hollow spherical particles that are more safe and can be produced more easily. This problem is solved by a hollow spherical particle that is a self-assembly of a lignin-sugar complex, the lignin-sugar complex has at least one type of bond selected from the group consisting of an alpha ether bond between lignin and a polysaccharide, an alpha ester bond between lignin and a polysaccharide, and a gamma ester bond between lignin and a polysaccharide.

The invention discloses superfine TiO2 powder and a preparation method thereof, and relates to the technical field of titanium dioxide, the preparation method comprises the following steps: adding TiCl4 into deionized water to prepare a TiCl4 solution; adding a modified dispersant into deionized water to prepare a modified dispersant solution; adding a TiCl4 solution into the modified dispersant solution, and carrying out heat preservation hydrolysis to obtain a metatitanic acid solution; naturally cooling and aging the metatitanic acid solution, and filtering to obtain a metatitanic acid filter cake; putting the metatitanic acid filter cake into a sagger, sintering at high temperature, and crushing to obtain the superfine TiO2 powder, and finally, the superfine TiO2 powder with uniform particle size, good dispersity and high sphericity can be obtained.

This invention discloses a soybean phospholipid-based nanoemulsion and its preparation method, belonging to the fields of molecular biology and biomedicine. This invention addresses the technical problem of refining the particle size and improving the stability of existing soybean phospholipid-based nanoemulsions for use in fine pharmaceuticals. A method for preparing a soybean phospholipid-based nanoemulsion includes the following steps: S1, modified glycerol phosphorylcholine and cholesterol are mixed in ethanol, then phosphatidylethanolamine and a composite stabilizer are added to form an oil phase; deionized water, glycerol, and polyether F68 are mixed to form an aqueous phase; S2, the oil phase is injected into the aqueous phase and homogenized at high speed to obtain a preliminary mixture; the pH of the preliminary mixture is adjusted to prepare a primary emulsion; the primary emulsion undergoes low-pressure homogenization followed by high-pressure homogenization to obtain a nanoemulsion; the nanoemulsion is filtered through a microporous membrane to obtain the soybean phospholipid-based nanoemulsion. The nanoemulsion prepared by this invention has the advantages of small particle size and good photothermal stability.

This invention discloses a creatine kinase detection kit that counteracts lipemia interference and its preparation method. The kit includes reagent R1 and reagent R2; reagent R1 includes: purified water, imidazole, MgAC, and EDTA Na. 2 Glucose, PC300, Na 2 SO 3 N-acetylcysteine, NADP, AMP, ADP, AP5A, HK, and surfactant; reagent R2 includes: pure water, Capso, creatine phosphate, PEG6000, and NaN. 3 The kit contains BSA and G6PDH. The surfactant is one or a combination of two of Triton 100 and Tween 80. Through the synergistic effect of PEG6000 and the two surfactants Triton 100 and Tween 80, the creatine kinase detection kit significantly improves its resistance to lipemia interference and enhances its detection accuracy. The kit is simple to prepare, has strong resistance to lipemia interference, simple components, and low preparation cost, making it highly promising for market application.

The present invention relates to the technical field of bio-nanomaterials, and discloses a mitochondrial-targeted fluorescent carbon dot and a preparation method and application thereof. The mitochondrial-targeted fluorescent carbon dot is prepared from a raw material containing p-aminophenol and an organic solvent. In addition, the preparation method of the mitochondrial-targeted fluorescent carbon dot comprises: (1) dissolving p-aminophenol in an organic solvent, and then adjusting the pH value of the obtained mixed solution to 3-5 and then performing a solvothermal reaction to obtain a mitochondrial-targeted fluorescent carbon dot primary product; (2) separating and purifying the mitochondrial-targeted fluorescent carbon dot primary product to obtain a mitochondrial-targeted fluorescent carbon dot aqueous solution. The preparation method is simple to operate and low in cost. The prepared mitochondrial-targeted fluorescent carbon dot exhibits highly selective mitochondrial targeting through hydrophobic interaction and hydrogen bonding rather than traditional electrostatic interaction, and can be used for non-destructive visualization of mitochondria.