Interfacial Adhesion Characteristics of Kenaf Fibres Subjected to Different Polymer Matrices and Fibre Treatments
Table 4
Main fibre pullout mechanisms and their brief remarks for the different types of fibre treatments used subjected to polyester matrix at dry loading conditions.
(i) Sign of fibre rupture from the core of the fibre after the pullout (ii) Tendency of fibre to split from the main single fibre was high which contributed to many loose fibres (iii) Fibre surfaces were smooth which ruined the interfacial adhesion strength of the fibre against the matrix
Brittle-like fracture at end of fibre was observed because of the acidic treatment
(i) Sign of fibre contraction during the SFPT (ii) Fibre surfaces were smooth which lowered the IAS of the fibre and matrix (iii) Sign of micro cracks on fibre surfaces which cause the fibre to break during the pullout test
Brittle-like fracture at end of fibre was observed because of the acidic treatment
(i) Slight debonding of fibre with matrix (ii) Fibre was torn apart from the main core fibre after the test indicating high interlocking capabilities of the fibre and matrix