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논문 기본 정보

자료유형
학술저널
저자정보
S. Dhanasekar (S. A. Engineering College) M.S. Ravi Theja (Sri Eshwar College of Engineering) S. Baskar (Chennai Institute of Technology) S. Vishvanathperumal (S. A. Engineering College)
저널정보
한국고분자학회 폴리머 폴리머 제47권 제5호
발행연도
2023.9
수록면
613 - 627 (15page)
DOI
10.7317/pk.2023.47.5.613

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초록· 키워드

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The final performance of polymer-based composites is greatly influenced by the surface modification of fillers, filler dispersion, and interfacial adhesion. In this contribution, silica is modified by polymethylhydrosiloxane (PMHS) using a quick and effective tris(pentafluorophenyl)borane-catalyzed functionalization that can be finished at room temperature in a few minutes. The modified silica exhibits both unaltered reactivity and a highly hydrophobic surface. A comparison of composites containing extracted silica and modified silica reveals that the PMHS modification can improve silica dispersibility by lowering the interfacial energy, as well as enhance interfacial interaction due to the reactivity of the remaining Si-H bonds. The modified composite shows remarkable improvements in mechanical properties with a PMHS grafting percentage as low as 1.5 wt% (63% increase in tensile strength, 12% increase in elongation at break, and 23% increase in modulus). We believe that the hydrosilane-modified silica offers enormous promise for the creation of high-performance polymer composites, owing to the improved overall performance of the modified composites and the ease and speed of the modification process.

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Abstract
Introduction
Experimental
Results and Discussion
Conclusions
References

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