An Investigation of the Influence of Interface Chemical Structure on Fiber/Matrix Adhesion


The primary objective of the study is to investigate the impact of chemical structure at the interface on the interface strength of fiber/matrix composite. A solvent based method was used to deposit trichlorosilane on E-glass fiber surfaces followed by in situ modification of the deposited layer to prepare pure and mixed amine undecyl self assembled monolayer (SAM). The extent of fiber/matrix adhesion was determined by performing single fiber fragmentation test (SFFT). The SFFT data indicate that ˜ 85 % of fiber breaks obtained for epoxy composite occurs at a much lower mass fraction of amine coverage for SAM while a similar number of fiber breaks occur at a much higher mass fraction of amine coverage for aqueous solution deposited coupling agent system.

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Correspondence to Dharmaraj Raghavan.

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Raghavan, D. An Investigation of the Influence of Interface Chemical Structure on Fiber/Matrix Adhesion. MRS Online Proceedings Library 977, 1109 (2006).

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