Preparation method and application of modified nano-silicon dioxide toughened epoxy resin
A technology of nano-silica and tough epoxy resin, which is applied in epoxy resin coatings, coatings, anti-corrosion coatings, etc., can solve the problems of toughness enhancement and excellent performance reduction of epoxy resin, and achieve stable resin performance and coating performance. Improved effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0016] (1) Preparation of modified nano-silica
[0017] First, take 1g of KH-550 and add it to 48g of absolute ethanol, add glacial acetic acid to adjust the pH value to 3.5, and ultrasonically oscillate for 10 minutes to completely dissolve it in absolute ethanol.
[0018] Weigh 5g nano-SiO 2 , put it into a three-necked flask, pour 20g of dispersed KH-550 absolute ethanol solution, ultrasonically disperse for 30min, then put it into a constant temperature water bath, stir at a constant temperature of 75°C for 3.5 hours at a stirring speed of 450r / min. Then cool, centrifuge, and dry at 140° C. for 24 hours to obtain a modified nano-silica powder.
[0019] (2) Preparation of modified nano-silica toughened epoxy resin
[0020] Add 100g of liquid epoxy resin into the reaction vessel, install an electric high-speed mixer, heat to 60°C, add 0.1g of modified nano-silica under stirring, add slowly, and stir evenly after the addition is complete , under the condition of high-s...
Embodiment 2
[0028] (1) Preparation of modified nano-silica
[0029] First, take 1.5g KH-550 and add it to 49g absolute ethanol, then add glacial acetic acid to adjust the pH value to 4, and ultrasonically oscillate for 15 minutes to completely dissolve it in absolute ethanol.
[0030] Weigh 5.5g nano-SiO 2 , put it into a three-necked flask, pour 25g of dispersed KH-550 absolute ethanol solution, ultrasonically disperse for 30min, then put it into a constant temperature water bath, stir at a constant temperature of 75°C for 4 hours at a stirring speed of 450r / min. Then cool, centrifuge, and dry at 140° C. for 24 hours to obtain a modified nano-silica powder.
[0031] (2) Preparation of modified nano-silica toughened epoxy resin
[0032] Add 100g of liquid epoxy resin into the reaction vessel, install an electric high-speed mixer, heat to 60°C, add 0.5g (according to the amount of epoxy resin) of modified nano-silica under stirring, and slowly Add, after the addition is complete, st...
Embodiment 3
[0040] (1) Preparation of modified nano-silica
[0041] First, take 2g of KH-550 and add it to 50g of absolute ethanol, add glacial acetic acid to adjust the pH value to 3.6, and ultrasonically oscillate for 20 minutes to completely dissolve it in absolute ethanol.
[0042] Weigh 6g nano-SiO 2 , put it into a three-necked flask, pour 30g of dispersed KH-550 absolute ethanol solution, ultrasonically disperse for 30min, then put it into a constant temperature water bath, stir at a constant temperature of 75°C for 4.5 hours at a stirring speed of 450r / min. Then cool, centrifuge, and dry at 140° C. for 24 hours to obtain a modified nano-silica powder.
[0043] (2) Preparation of modified nano-silica toughened epoxy resin
[0044]Add 100g of liquid epoxy resin into the reaction vessel, install an electric high-speed mixer, heat to 60°C, add 1g (according to the amount of epoxy resin) of modified nano-silica under stirring, and add it slowly , after the addition is complete, ...
PUM
Property | Measurement | Unit |
---|---|---|
Impact resistance | aaaaa | aaaaa |
Salt spray resistance | aaaaa | aaaaa |
Adhesion | aaaaa | aaaaa |
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