9 results about "Naphthalenesulfonate" patented technology

Method for determining cell viability in a cell culture of biological cells for the biotechnological production of proteins, in particular antibodies, characterized in that a fluorescent dye selected from 4,4'-dianilino-1,1'-binaphthyl-5,5'-disulfonate (Bis-ANS) or 8-anilinonaphthalene-1-sulfonate (ANS) is used as a detection agent, and wherein the fluorescent dye is present in the cell culture at a concentration of 0.1 µM to 10 µM, the fluorescent dye selectively penetrates cells with damaged cell membranes and binds to intracellular proteins, the labeled cells are detected by excitation in the UV range and detection of the fluorescence in the green wavelength range, and the determination of cell viability is carried out using an automated imaging fluorescence microscope.

The application relates to the technical field of ceramics, and discloses a high-strength high-temperature-resistant ceramic material and a preparation method, wherein graphene oxide and polyamide naphthalene sulfonate dispersant are reacted, then mixed with clay, quartz powder, talc powder, fly ash and the like through ball milling, calcined, and finally a high-strength high-temperature-resistant ceramic material is obtained. The polyamide naphthalene sulfonate is grafted to the surface of graphene, the dispersibility of the graphene is improved, and the mechanical strength of the ceramic material is improved. The main chain of the polyamide naphthalene sulfonate dispersant contains an amide bond, and the side chain contains a naphthalene sulfonate structure, so that the quartz, fly ash and the like can be dispersed, the apparent porosity of the ceramic is significantly reduced, and the bending strength and other mechanical properties are improved.

This invention provides a hydrophilic-lipophilic balanced coal-water slurry additive, its preparation method, and its application. By weight, the raw materials include: 18-28 parts of gemini-type polyether-modified naphthalene sulfonate, 4-10 parts of zwitterionic nano-hybrid stabilizer, 12-20 parts of sodium lignosulfonate, 6-12 parts of polycarboxylate-based dispersant, 1.5-4 parts of biopolysaccharide rheology modifier, 10-16 parts of low-temperature flowability improver, 2-4 parts of pH adjuster, 2-5 parts of chelating agent, and 35-50 parts of deionized water. The hydrophilic-lipophilic balanced coal-water slurry additive provided by this invention can form an adsorption layer on the surface of coal particles, achieving synergistic dispersion through electrostatic repulsion and steric hindrance. This improves the low-temperature flowability, long-term storage stability, and coal type adaptability of the coal-water slurry, regulates thixotropy, chelates interfering ions, optimizes the effects of each component, and ensures a stable and homogeneous system.

The invention belongs to the technical field of soluble powder, and particularly relates to soluble powder containing indolebutyric acid 14-hydroxybrassinosterol. The soluble powder is prepared from indolebutyric acid, 14-hydroxybrassinosterol, a dispersing agent, a stabilizing agent, a wetting agent, a pH buffer pair and a water-soluble filler, wherein the dispersing agent is a modified naphthalene sulfonate formaldehyde condensate; the stabilizer is modified vitamin E. The auxiliary components of the soluble powder act together to achieve rapid wetting of a finished product, active components are stable for a long time and good in dispersion uniformity, and the soluble powder has excellent effects of promoting growth of pakchoi and improving the yield and quality of pakchoi. The method has important significance for developing soluble powder containing indolebutyric acid and 14-hydroxyl brassinosteroid and realizing high quality and high yield of lower Chinese cabbages.

The application discloses a high-flowability filling mortar with a large amount of fly ash and a preparation method thereof. The high-flowability filling mortar is prepared from the following components in parts by weight: fly ash 425-595 parts, silicate cement 170-250 parts, quicklime 17-40 parts, sand 200-280 parts, water 100 parts, naphthalene sulfonate formaldehyde condensate 5-10 parts, triethanolamine 3-7 parts, polyacrylamide 1-5 parts, calcium formate 2-3 parts and ethylenediaminetetraacetic acid disodium 2-3 parts. The high-flowability filling mortar can shorten the setting time, reduce the hydration heat and greatly reduce the influence of the sand silt content on the performance of the mortar, and meets the filling demand of the mortar in underground engineering construction.

This invention belongs to the technical field of asphalt modification materials, specifically relating to a vulcanized natural rubber latex modified asphalt and its preparation method. It is made from the following raw materials in parts by weight: 100 parts base asphalt, 15-20 parts natural rubber latex, 0.18-0.28 parts sulfur (vulcanizing agent), 0.15-0.36 parts silica, 0.075-0.14 parts 2,6-di-tert-butyl-4-methylphenol (antioxidant), 0.09-0.16 parts zinc ethylphenyl dithiocarbamate, 0.045-0.08 parts 2-mercaptobenzothiazole, 0.075-0.14 parts zinc oxide, and 0.015-0.06 parts naphthalenesulfonate formaldehyde condensate. This invention first vulcanizes the natural rubber latex, significantly improving its elasticity, toughness, and anti-aging properties. Then, it is used for asphalt modification, ultimately producing vulcanized natural rubber latex modified asphalt with excellent low-temperature toughness and high-temperature deformation resistance.

This invention provides a naphthalene sulfonate-modified coal-water slurry dispersion stabilizer, its preparation method, and its application. By weight, the raw materials include: 22-38 parts of rosin polyether-modified naphthalene sulfonate condensate, 1.5-3.5 parts of borate ester dynamically cross-linked cellulose microgel, 0.8-2.0 parts of auxiliary stabilizer, 5-10 parts of polycarboxylate-based water-reducing agent, 8-15 parts of sulfonated lignin, 0.8-2.5 parts of isomeric tridecyl alcohol polyoxyethylene ether, 5-10 parts of antifreeze and humectant, 2.5-5 parts of sodium gluconate, 0.4-1.0 parts of tris(hydroxymethyl)aminomethane-hydrochloric acid buffer pair, 0.15-0.6 parts of polyether-modified polysiloxane, and 30-50 parts of deionized water. The synergistic effect of the components in this invention allows the prepared coal-water slurry dispersion stabilizer to effectively regulate the rheological and stability properties of coal-water slurry, adapting to the performance requirements of coal-water slurry in biomass dense molding fuel processing.

This invention relates to the field of pesticide preparation technology, specifically to a suspension containing azoxystrobin and fluopyram and its preparation method, comprising the following components by mass percentage: azoxystrobin 10%-25%, fluopyram 15%-30%, alkyl naphthalene sulfonate formaldehyde condensate 2%-3%, polycarboxylate derivatives or fatty alcohol polyoxyethylene ether phosphate 3%-4%, nanocellulose 0.2%-0.5%, xanthan gum or magnesium aluminum silicate 0.1%-0.3%, ethylene glycol or propylene glycol 5%-10%, Kathon or phenoxyethanol 0.2%-0.5%, organosilicon defoamer or polyether defoamer 0.5%-1.2%, organosilicon synergist or isomeric tridecyl alcohol polyoxyethylene ether 5%-8%, citric acid or potassium dihydrogen phosphate 2%-5%, and deionized water 5.5%-57%. The suspension containing oxadiazon and fluopyram and its preparation method provided by this invention effectively solve the technical problems of poor stability, uneven component dispersion and poor application effect of existing compound suspensions, and have many technical advantages.