8results about How to "Guaranteed Solubility" patented technology

The application belongs to the technical field of detection, and particularly relates to a method for determining the content of chlorhexidine acetate in a disinfectant. The method for determining the content of chlorhexidine acetate in the disinfectant comprises the following steps: (1) dispersing the sample with glacial acetic acid, releasing chlorhexidine acetate combined with sample matrix components, and extracting with a methanol aqueous solution; and (2) taking a tetrabutylammonium bromide-acetic acid-acetonitrile solution as a mobile phase, and detecting with a high-performance liquid chromatograph. The method for detecting chlorhexidine acetate is simple in operation, good in reproducibility, complete in separation from impurities, high in accuracy, and has a good application prospect.

The invention provides a borehole wall stable drilling fluid suitable for hard and brittle formations and a preparation method of the borehole wall stable drilling fluid. The drilling fluid is prepared from the following substances in percentage by weight: 0.01 to 0.03 percent of soluble carbonate, 0.01 to 0.25 percent of alkaline regulator, 3.0 to 5.0 percent of bentonite, 1.0 to 3.0 percent of coating blocking agent, 1.0 to 4.0 percent of sulfonated phenolic resin, 0.1 to 0.5 percent of pressure resistance transfer agent, 5 to 15 percent of inhibitor, 4.0 to 8.0 percent of calcium carbonate, 1.0 to 3.0 percent of emulsified asphalt, 0.3 to 0.5 percent of xanthan gum and the balance of water. The plugging agent has the technical characteristics of good plugging property and remarkable pressure transmission relieving effect. Compared with the conventional plugging anti-sloughing drilling fluid system, the plugging anti-sloughing drilling fluid has the advantages that the plugging performance is better, effective components in the drilling fluid can be rapidly coated and spread at drilling fluid rock cracks and cementation positions when a stratum is drilled, pressure transmission and clay mineral hydration expansion pressure are rapidly reduced, the initial state of stratum rock can be kept to the maximum extent, and well wall stability is achieved.

This invention relates to a weakly associative functionalized polyacrylamide and its preparation method. The functionalized polyacrylamide is obtained by copolymerization of acrylamide structural monomers, ionic structural monomers, and hyperbranched associative monomers; the mass ratio of acrylamide structural monomers:ionic structural monomers:hyperbranched associative monomers is 30-60:0-30:0.5-2. The advantage of this invention is the synthesis of a novel class of hyperbranched associative monomers. By introducing a weakly associative structure into acrylamide, the thickening ability, shear resistance, and temperature and salt resistance of polyacrylamide can be enhanced, while overcoming the influence of conventional associative monomer introduction on solubility. This results in a fast-dissolving, weakly associative polyacrylamide that can be used for aqueous solution thickening, oil and gas extraction, and other fields.

This utility model relates to the field of masterbatch raw material dissolution technology, specifically disclosing a high-temperature dissolution device for masterbatch raw materials of composite fiber fabrics. The device includes a housing with a feed inlet on its upper surface. A stirring mechanism for agitating the raw materials is located at the upper end of the housing, and an auxiliary mechanism for assisting in the dissolution of the raw materials is located on one side of the stirring mechanism. The stirring mechanism includes a drive motor, which is bolted to the upper end of the housing. An active helical gear is fixed to the power output shaft of the drive motor. Through the stirring mechanism, the drive motor drives the active helical gear to rotate, which in turn drives the transmission tube to rotate. This causes the spiral blades to transport the masterbatch raw materials inside the housing from bottom to top, thereby uniformly heating the masterbatch raw materials and ensuring a good dissolution effect. Furthermore, the rotation of the transmission tube drives the auxiliary rod to move, which agitates the masterbatch raw materials and improves the dissolution effect.

The invention provides a Clanis bilineata tsingtauica thick soup and a preparation method thereof, and particularly belongs to the technical field of seasonings. Clanis bilineata larva powder and pig bone soup-stock dry powder are used as core raw materials, and are matched with egg white powder, papaya powder and various seasoning, thickening and freshening auxiliary materials. Through electronic nose detection, W1C, W3S and other sensor response values corresponding to the characteristic fishy smell of the clanis bilineata tsingtauica are all smaller than or equal to 1.0, and effective fishy smell removal of the papaya powder is achieved; meanwhile, the product is outstanding in palatable taste dimension response, balanced in taste dimension response of salty taste, aftertaste and the like, free of obvious irritation to bitter taste and astringent taste, and coordinated in salty and sweet flavors. The fishy smell of the clanis bilineata tsingtauica is removed by using the natural components of the papaya powder, the fresh and fragrant base of the pig bone soup-stock and the freshness enhancing effect of the disodium 5 '-ribonucleotide are combined, so that the thick soup is fresh, fragrant and mellow in taste and good in solubility, meanwhile, the balance of nutrition and flavor is realized through scientific proportioning, the product is convenient to store and ready to eat, and the category of deeply processed clanis bilineata tsingtauica food is enriched.

The invention discloses a phenolic resin microsphere-based porous carbon conductive composite material and a preparation method thereof, and belongs to the technical field of conductive materials. Phenolic resin microspheres with specific molecular weight and hydroxymethyl content are used as carbon precursors, nitrogen-doped carbon nanofibers are introduced to construct a continuous conductive network, a metal-ligand self-assembled mesoporous template agent is adopted to form ordered multilevel channels, and a skeleton structure is enhanced by virtue of a boric acid ester crosslinking aid. The preparation method comprises the steps of potential regulation and control dispersion of precursor slurry, alkaline steam aging forming and gradient pyrolysis carbonization in an inert atmosphere. The method avoids the use of strong corrosive reagents, and the process is environment-friendly. The obtained composite material has high specific surface area, excellent conductivity and good mechanical strength, effectively solves the technical problems that a traditional porous carbon material is disordered in pore structure, insufficient in conductivity and weak in mechanical property and is difficult to synergistically optimize, and has wide application prospects in the fields of supercapacitor electrodes, silicon-carbon negative electrodes and the like.

The application discloses a nystatin solution and a preparation method and application thereof, which is prepared from the following raw materials in parts by weight: nystatin 20-50 parts, dimethyl sulfoxide 110-220 parts, preservative 1.5-2.0 parts, antioxidant 0.5-1 part and 1,2-propylene glycol 737-880 parts. The application creatively adopts a composite solvent system of dimethyl sulfoxide and propylene glycol, utilizes the extremely strong dissolving capacity of dimethyl sulfoxide and the auxiliary solubilization and dilution effect of propylene glycol, and produces a significant synergistic effect. The system can completely dissolve up to 50 parts by weight of nystatin, forms a clear, transparent and uniform stable solution, fundamentally solves the technical bottleneck that nystatin cannot be prepared into a high-content solution due to poor water solubility, and lays a foundation for poultry group water medication.

The present application belongs to the technical field of chiral photoelectric materials, and particularly relates to a chiral additive for inducing spiral aggregation of ladder-type non-fullerene acceptors, and a preparation method and application thereof.The chiral additive for inducing spiral aggregation of ladder-type non-fullerene acceptors provided by the present application takes an axially chiral conjugated group as a skeleton and takes a chiral source; a thiophene bridge is used to ensure solubility, and a cyano indenone structure is used for terminal modification to ensure that the chiral additive forms an alloy phase with acceptor molecules. The chiral additive can be used for preparing photoelectric devices such as solar cells or circularly polarized light detectors. The present application uses a chiral additive to induce Y6-type acceptor materials to occur spiral aggregation and form a spiral superstructure with circular dichroism activity. In addition, the chiral additive can optimize the nanomorphology of the active layer in the solar cell, enhance the charge transport and inhibit the recombination, and can improve the photoelectric conversion efficiency of the solar cell.