Reactor for preparing high-viscosity silicone oil emulsion

Abstract

The invention belongs to the technical field of novel silicone oil emulsion preparation, and in particular relates to a reactor for preparing high-viscosity silicone oil emulsion. The reactor is characterized by consisting of a container main body, a jacket, a main stirrer and a wall-scraping stirrer. Materials generate a flow field by virtue of the rotation of the main stirrer. Since the main stirrer is provided with three layers of blades in different rotating directions, the materials flow up from the bottom of a container and are pressed down by the reversed blades at a liquid level part. An oil phase and a water phase form shearing for emulsification, and the blades are large in size and are particularly suitable for preparing the high-viscosity silicone oil emulsion. The wall-scraping stirrer can scrape the poorly-emulsified materials which are adhered to the wall surface along the inner wall of the container to enable the materials to enter the main stirrer for emulsification; the wall-scraping stirrer is attached to the inner wall of the container, so that the flow pattern of the flow field of the main stirrer cannot be changed; the container is provided with a sealing head with a flat bottom and a circular-arc-shaped straight edge, so that high-viscosity materials can conveniently flow up, and the emulsification uniformity is realized. The particle size distribution of the high-viscosity silicone oil emulsion prepared by the reactor is narrow. The reactor is particularly suitable for preparing large-particle-size oil-in-water (O / W) emulsion and can be applied to the reaction process of other high-viscosity material systems.

Description

technical field [0001] The invention belongs to the technical field of preparing novel silicone oil emulsions, in particular to a reactor for preparing high-viscosity silicone oil emulsions. technical background [0002] Silicone oil (polysiloxane), that is, organosilicon compound, refers to a compound containing Si-O bonds and at least one organic group directly connected to a silicon atom. It has excellent chemical stability, heat and cold resistance, and weather resistance. , hydrophobicity, lubricity, high refraction and storage stability, widely used in various industries, including automobile, construction, chemical, electrical engineering and electronics industry, pharmaceutical industry, pulp and paper, transportation industry, aerospace industry , textile, leather, mechanical engineering, metal processing and other fields. High-viscosity silicone oil is a high-viscosity fluid. Due to its good film-forming properties, it can be used to repair hair damage and improve...

AI Technical Summary

Problems solved by technology

The existing emulsification equipment usually adopts a conventional stirring reactor. Due to the structure of the agitator, it cannot meet the requirements of good mixing of the high-viscosity silicone oil system, so it cannot meet the requirements of the water agent and emulsifier (water phase) and silicone oil (oil phase). Good emulsification, the prepared emulsion has a wide particle size distribution and the product is unstable

Images