Method for preparing single-component polyurethane coating by coupling agent-modified fly ash
A technology of polyurethane coating and fly ash is applied in the field of polyurethane coating to achieve the effects of improving elongation at break, reducing production cost and reducing reaction time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0023] A kind of coupling agent modified fly ash prepares the method for one-component polyurethane coating, comprises the steps:
[0024] (1) Preparation of silane coupling agent solution: Take 60-90mL of water-ethanol solution with a mass concentration of 75-95%, add 2-4g of silane coupling agent, and reflux at 75-95°C for 1.5-2.5h, And use hydrochloric acid to adjust the pH value of the solution to 3.5-4.5, after the reflux is completed, naturally cool to room temperature to obtain a silane coupling agent solution;
[0025] (2) Preparation of modified fly ash: Take 38-42mL of the silane coupling agent solution, add 0.3-0.4g of fly ash, reflux at a constant temperature of 98-102°C for 50-70min, add an appropriate amount of NaOH to adjust the pH to neutral, dry at 75-85°C, and grind into powder to obtain modified fly ash;
[0026] (3) Preparation of one-component polyurethane: Add 14-18 g of Mn=2000 polyol POL-356 and 3-5 g of Mn=600 polyol POL-3195 into 25-35 mL of ethyl ac...
Embodiment 2
[0030] A kind of coupling agent modified fly ash prepares the method for one-component polyurethane coating, comprises the steps:
[0031] (1) Preparation of silane coupling agent solution: Take 75mL of water-ethanol solution with a mass concentration of 85%, add 3.000g of silane coupling agent, reflux at 85°C for 2h, and adjust the pH value of the solution to 4 with hydrochloric acid, After reflux finishes, cool down to room temperature naturally to obtain a silane coupling agent solution;
[0032] (2) Preparation of modified fly ash: take 40mL of the silane coupling agent solution, add 0.3500g of fly ash, reflux at a constant temperature of 100°C for 60min, add an appropriate amount of NaOH to adjust the pH to neutral, at 80°C Dry and grind into powder to obtain modified fly ash;
[0033] (3) Preparation of one-component polyurethane: Add 16g of Mn=2000 polyol POL-356 and 4g of Mn=600 polyol POL-3195 into 30mL of ethyl acetate solution, reflux and stir in a constant tempera...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
particle diameter | 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