Organic silicon gel as well as preparation method and application thereof
A technology of silicone and gel, which is applied in the field of silicone gel and its preparation, can solve the problems of greasy feeling, skin irritation, difficult product distribution and spreading of the skin, etc., to achieve reduced usage, better water-locking performance, and avoid Effect of local over-crosslinking
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0025] The present invention provides a kind of preparation method of silicone gel, comprises the following steps:
[0026] 1) Add polymethylhydrogensiloxane, hydroxypolysiloxane and carrier fluid into the reaction kettle at a weight ratio of 1:(1.02-1.30):(3-10), add triethyl phosphate, and stir well The temperature is raised to 70-90°C; the carrier fluid is composed of isononyl isononanoate and dimethylsiloxane and has a viscosity of 2-8mm 2 / s mixture;
[0027] This step is to mix the two siloxanes uniformly in the carrier fluid first, and then add triethyl phosphate as a surfactant, which can effectively improve the compatibility of the siloxane with the carrier fluid and the added catalyst, and improve its Reactivity and the uniformity of the obtained gel system; the carrier fluid acts as a reaction medium and a viscosity reducer, which can effectively reduce the large-volume agglomeration of the gel, thereby obtaining a silicone gel with a smaller particle size; dimethy...
Embodiment 1
[0035] A preparation method of organosilicon gel, is characterized in that, comprises the following steps:
[0036] 1) Add 1kg of polymethylhydrogensiloxane, 1.16kg of hydroxypolysiloxane and 6.5kg of carrier fluid into the reaction kettle, add 7.5g of triethyl phosphate, stir evenly and heat to 80°C; the carrier fluid is The viscosity of isononyl isononanoate and dimethylsiloxane is 6mm 2 / s mixture;
[0037] 2) Add 3.5 mg of chloroplatinic acid, stir, and react in vacuum for 6 hours;
[0038] 3) Water-cooled and temperature controlled below 90°C, using a colloid mill for high-speed shearing for 30 minutes to obtain silicone gel.
Embodiment 2
[0040] A preparation method of organosilicon gel, is characterized in that, comprises the following steps:
[0041] 1) Add 1kg of polymethylhydrogensiloxane, 1.02kg of hydroxypolysiloxane and 10kg of carrier fluid into the reaction kettle, add 5g of triethyl phosphate, stir evenly and heat to 90°C; the carrier fluid is made of isononyl The viscosity of isononyl ester and dimethylsiloxane is 8mm 2 / s mixture;
[0042] 2) Add 2mg of chloroplatinic acid, stir, and react in vacuum for 2h;
[0043] 3) Water-cooled and temperature controlled below 90°C, using a colloid mill for high-speed shearing for 30 minutes to obtain silicone gel.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com