Efficient space station water treatment solid defoaming agent and preparation method thereof

The high-efficiency solid defoamer for space station water treatment, prepared by specific combination and synthesis methods, solves the problems of insufficient dispersibility and stability of existing defoamers in microgravity environment, and achieves rapid defoaming and long-lasting foam suppression, meeting the long-term stable operation requirements of the space station water treatment system.

CN122254590BActive Publication Date: 2026-08-25JIANGSU SAIOUXINYUE DEFOAMER
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Patent Information

Application Number
CN202610728623.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-05-26
Publication Date
2026-08-25
Estimated Expiration
2046-05-26

AI Technical Summary

Technical Problem

Existing defoamers are difficult to achieve rapid defoaming and long-lasting foam suppression in the water treatment system of the space station under microgravity conditions. Furthermore, liquid defoamers have poor storage stability, and solid defoamers have insufficient dispersibility, which cannot meet the long-term stable operation requirements of the space station.

Method used

A combination of dimethyl silicone oil, water-soluble silicone oil, specific surfactants, dispersants, anti-caking agents, and carriers is used to generate a high-efficiency solid defoamer for space station water treatment through a specific reaction. This includes multi-step synthesis of surfactants and dispersants to form a multi-point anchoring structure and a stable hydration shell. The use of a carrier enables rapid dispersion and foam suppression.

Benefits of technology

It achieves rapid defoaming and long-lasting foam suppression in a microgravity environment, ensuring uniform dispersion of the defoamer in water, improving the storage stability and dispersion performance of the defoamer, and meeting the long-term stable operation requirements of the space station water treatment system.

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Abstract

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.
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