4 results about "Nonadecane" patented technology

The invention relates to the field of plasma separation and detection, in particular to a composition for separating plasma and a using method thereof. The composition comprises: a phase change component, which is selected from n-alkanes, which are selected from at least one of n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-eicosane, n-heneicosane or n-docosane; a liquid phase carrier component, wherein the liquid phase carrier component is selected from silicone oil; the structural framework and rheology regulation and control component comprises fumed silica, and the structural framework and rheology regulation and control component comprises fumed silica; the dispersion and stabilization auxiliary agent component is selected from at least one of TiO2 and BaSO4, the density adjusting filler component is selected from at least one of TiO2 and BaSO4, and the dispersion and stabilization auxiliary agent component comprises a silane coupling agent. According to the device, plasma and blood cells can be reliably, rapidly and effectively separated only through one-time low-temperature centrifugation, and remixing caused by transportation jolting can be avoided.

The application discloses a low interfacial tension surfactant and a preparation method and application thereof in anti-freezing glass water, and relates to the technical field of surfactants. The low interfacial tension surfactant is prepared by the following steps: 2,4,6-trivinyl-2,4,6-trimethylcyclotrisiloxane is reacted with 5-amino-1-mercaptopentane under the action of a photoinitiator to generate an intermediate 1,3,6,9,12,15,18-hexaoxanonadecane-1-amine, the intermediate 1 is reacted with 1H,1H-perfluorooctyl acrylate to generate an intermediate 2, the intermediate 2 is reacted with epichlorohydrin to generate an intermediate 3, and the intermediate 1 is reacted with the intermediate 3. The prepared surfactant has low surface tension and contact angle, and exhibits excellent wetting performance and low-temperature stability.

A polyol ester comprises a reaction product of a monocarboxylic acid or ester thereof and a polyol. The acid may be hexanoic acid, octanoic acid, decanoic acid, lauric acid, myristic acid, myristoleic

The application discloses a kind of high-efficiency space station water treatment solid defoaming agent and preparation method thereof, and relates to the technical field of defoaming agent.The high-efficiency space station water treatment solid defoaming agent includes the following raw materials by weight fraction: dimethyl silicone oil 25-35 parts, water-soluble silicone oil 5-10 parts, surfactant 4-5 parts, dispersing agent 0.5-1.5 parts, anti-caking agent 1.5-2.5 parts, disintegrating agent 1-2 parts, carrier 25-35 parts.By 2-(1-bromovinyl) naphthalene and 3,6,9,12,15,18-hexaoxanonadecan-1-thiol reaction to generate intermediate 1, intermediate 1 and 3-aminopropyl trimethoxysilane reaction to generate intermediate 2, intermediate 2 and glycerol triglycidyl ether reaction to generate surfactant.The high-efficiency space station water treatment solid defoaming agent prepared by the application has excellent water dispersibility, defoaming performance and bubble inhibition performance.