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| Type |
Symposium |
| Area |
Recent Trends in Polymer Synthesis |
| Room No. |
Room 403 |
| Time |
FRI 10:00-10:25 |
| Code |
POLY2-3 |
| Subject |
Influence of Material Properties on Scratch-Healing Performance of Intrinsic Self-healing Polymers |
| Authors |
Jin chul Kim
Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Korea |
| Abstract |
Polymer coatings have been used to protect substrate surfaces from the external environment and/or to enhance aesthetic appearance. Recently, however, polymer coats have evolved to perform various ‘smart’ functions such as self-healing, self-cleaning, and stimulus-response functions. Intrinsic self-healing coatings are among the most important technologies for the use of high-value products that require long-term mechanical stability and chemical resistance, as required in automotive, architectural, medical, and electronic devices. The advantages of this approach over the extrinsic scratch-healing technique are that it can be applied to a wide range of organic coating materials, it can be used with transparent coatings, it allows the repeatedly healing of scratches. Overall, however, the durability of the coating is inversely related to its scratch-healing performance because the former requires high crosslinking density, while the latter relies on enhanced polymer chain mobility so that polymer chain rearrangements and hence healing can occur more easily. Therefore, striking the right balance between the material properties and the self-healing performance is a key factor in designing high-performance scratch-healing coating materials. In the current study, we conducted a detailed investigation of the relationship between the material properties and scratch-healing performance of intrinsic self-healing polymers containing diverse dynamic covalent bonds. |
| E-mail |
jckim81@krict.re.kr |
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123rd General Meeting of the KCS