Dual-curable polysiloxane as well as preparation method and application thereof
A polysiloxane, dual-curing technology, applied in the field of silicon materials, can solve the problems of high photocuring energy requirements, high photocuring energy of products, human and environmental damage, etc., achieving low photocuring energy, excellent resistance to moisture and heat aging performance, energy reduction effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] Take a 1000ml four-neck flask and dry it fully, add 500g of hydroxyl-terminated polysiloxane with a viscosity of 70cP, start stirring at 300r / min, vacuumize at 80°C to remove water for 60min, cool down to 50°C, add 23g of dimethoxydi Chloropropylsilane, after stirring for 15min, add 0.7g of acetic acid, react for 3h, add 46g of chloropropyltrimethoxysilane, react for 2h, extract the low boiling point at 100°C and 5mbar, add p-hydroxyanisole 0.015 g, 20g of sodium acrylate, stir well, add 2.5g of tetramethylammonium hydroxide and raise the temperature to 80°C for 3 hours, then raise the temperature to 150°C, extract the low boiling point under the condition of 5mbar, and filter under positive pressure to obtain the product I. After testing its silanol The residue was 0.7%, methyl acrylate was not detected.
Embodiment 2
[0048]Take a 1000ml four-neck flask and dry it fully, add 500g of hydroxyl-terminated polysiloxane with a viscosity of 200cP, start stirring at 300r / min, vacuumize at 100°C to remove water for 60min, cool down to 60°C, add 18g of dimethoxydi Chloropropylsilane, after stirring for 15min, add 0.5g of phosphoric acid, react for 3h, add 38g of chloropropyltrimethoxysilane, react for 2h, extract the low boiling point at 100℃, 5mbar, and add N,N-diethyl Hydroxylamine 0.01g, sodium acrylate 16g, stir evenly, add 2.5g tetramethylammonium hydroxide and heat up to 80°C for 3 hours, then heat up to 145°C, extract low boiling point under 5mbar, and filter under positive pressure to obtain product II. After testing Its silanol residue was 0.8%, and methyl acrylate was not detected.
Embodiment 3
[0050] Take a 1000ml four-neck flask and dry it fully, add 500g of hydroxyl-terminated polysiloxane with a viscosity of 100cP, start stirring at 300r / min, vacuumize at 90°C to remove water for 60min, cool down to 70°C, add 20.5g of dimethoxy Dichloropropylsilane, after stirring for 15min, add 0.6g phosphoric acid, react for 4h, add 42g chloropropyltrimethoxysilane, react for 3h, extract the low boiling point at 110°C and 6mbar, add p-hydroxyanisole to the obtained product 0.015g, 18g of sodium acrylate, stir well, add 2.6g of tetramethylammonium hydroxide and raise the temperature to 80°C for 4 hours, then raise the temperature to 150°C, extract the low boiling point under the condition of 5mbar, and filter under positive pressure to obtain the product III. After testing its silicon The residual hydroxyl group was 0.6%, and methyl acrylate was not detected.
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