Method for reducing curing reaction temperature and toughening thermosetting resin in situ
A curing reaction and thermosetting technology, applied in the direction of coating, etc., can solve the problems of loss of thermal and mechanical properties of thermosetting resins, damage to material processability, thermal properties and strength, etc., to achieve good mechanical properties, good thermal stability, and mechanical properties good performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0026] Example 1
[0027] The molar ratio of 1: 2 is dissolved in an appropriate amount of ethanol, and the ultrasonic 5 min is mixed well, and the bisphenol A-type benzoxazine is dissolved in an appropriate amount of acetone. 5 min formulated into a solution. The two solutions were mixed with a solution to obtain a homogeneous solution. The molar ratio of the indium nitrate and bisphenol A-type benzoxazine is 1:20. The concentration of the transition metal nitrate was 0.03 g / ml, and the concentration of the thermosetting resin solution was 0.3 g / ml.
[0028] First, the above solution is evenly applied to a pre-treated substrate, and then evaporated from 50 ° C / 1H, 70 ° C / 1H oven.
[0029] Second, the sprayed substrate is cured using the following steps: 140 ° C / 1H, 160 ° C / 1H, 180 ° C / 1H and 200 ° C / 1H.
[0030] Finally, the polybenzoxazine coating (remembered Pb-in-a-5) is 48.2%, T 5% Decomposition temperature is 293.3 o C. The impact resistance, hardness and surf...
Example Embodiment
[0031] Example 2
[0032] The present embodiment is different from the first 1: The molar ratio of the indium nitrate and bisphenol A-type benzoxazine described in steps is 1:10. Other steps and parameters are the same as in Example 1. Finally, the residual charcoal ratio of the polybenzoxazine coating (remembered Pb-in-a-10) is 55.6%, T 5% Decompose temperature is 328.4 o C. The impact resistance, hardness and surface adhesion are 7j, 6h and 5b, respectively.
Example Embodiment
[0033] Example 3
[0034] The present embodiment is different from that of the first example: the molar ratio of the indium nitrate and bisphenol A-type benzoxazine described in steps is 1: 5. Other steps and parameters are the same as in Example 1. Finally, the residual chain rate of the polybenzoxazine coating (remembered Pb-in-a-20) is 53.4%, T 5% Decompose temperature is 327.6 o C. The impact resistance, hardness and surface adhesion are 4J, 5H and 4B, respectively.
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.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap