The epoxy resin only has good wetting property to some fibers, like glass fiber, carbon fiber. If the wettability of resin and fiber is not good, how will it affect the FRP component made from it? And how can I improve the wettability of resin and fiber？
Dear Mr Shen,
wettability of the resin has a significant effect on the resulting fiber-reinforced polymer (FRP) bars and plates, any composite in fact for that matter. First, the choice of epoxy resin depends on which fibers are to be used, e.g., glass, carbon, basalt, etc. considering their wettability. Second, once an appropriate choice is made for the epoxy resin to make a composite from the given type fiber(s) then wettability is further improved through modifying surface properties by employing some chemical treatment and/or by exposing to high temperatures, depending upon the characteristics of both, the type of fibers as well as the epoxy resin. These processes to improve the adhesion between the fibers and surrounding matrix largely depend on a specific case in hand for study, and has no unique solution as such. In your case, please see which epoxy resin would be more suitable for the type of fibers you have with you based on the wettability criterion, and then improve their coupling additionally by further employing the surface, chemical, and thermal treatments, whichever is/are feasible. Hope this would work for you. All the best.
With best regards,
Vasant Matsagar.
Dear Zihao Shen,
Resin Wettability directly affects the properties and bonding of the resin and fiber.
The below-mentioned literature may be useful.
Article Wetting characteristics of epoxy resins modified by graphiti...
Article Interfacial and wetting properties between glass fiber and e...
https://doi.org/10.1177%2F0021998318772152
https://bioresources.cnr.ncsu.edu/resources/wettability-and-impact-performance-of-wood-veneerpolyester-composites/
Dear Zihao Shen,
The strength of the FRP component is severely affected by fiber-resin interface adhesion. Therefore, it is important to increase the wettability. The method of increasing wettability varies according to the composite production method and the resin-fiber pair to be used. For example, in natural fiber reinforced composites, chemical treatments are usually applied to the fiber. In addition, factors such as the character of the viscosity of the resin, the behavior of the fiber and the resin against moisture (hydrophobic or hydrophilic) are also important. Since the answer to the question changes according to the conditions, we can say that:
The method to be used is to find the factor causing the problem and weaken it.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Inorganic Materials
- Ceramics
- Glass