2018
DOI: 10.3390/fib6010007
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Interfacial Characterization by Pull-Out Test of Bamboo Fibers Embedded in Poly(Lactic Acid)

Abstract: Abstract:In this work, the apparent shear strength at the interface between a bamboo fiber and the surrounding poly(lactic acid) (PLA) matrix is quantified. A method for processing pull-out test samples within a controlled embedded length is proposed and the details of the test procedure are presented, along with a critical discussion of the results. Two series of samples are considered: untreated and mercerized bamboo fibers from the same batch, embedded in the same polyester matrix. Electron and optical micr… Show more

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Cited by 33 publications
(14 citation statements)
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“…The fiber failure mode gives an indication of reasonable load transfer through fibers and matrix. In contrast, a weak fiber/matrix interaction, in which load transfer from the matrix to the fiber is not effective, leads to a reduction in the tensile properties, and may also result in a decrease in the impact strength due to the absence of friction during the fiber pullouts [ 51 , 56 , 57 ]. Depending on the reinforcing fiber, the strength of a composite can also be reduced by weak fiber/matrix adhesion.…”
Section: Resultsmentioning
confidence: 99%
“…The fiber failure mode gives an indication of reasonable load transfer through fibers and matrix. In contrast, a weak fiber/matrix interaction, in which load transfer from the matrix to the fiber is not effective, leads to a reduction in the tensile properties, and may also result in a decrease in the impact strength due to the absence of friction during the fiber pullouts [ 51 , 56 , 57 ]. Depending on the reinforcing fiber, the strength of a composite can also be reduced by weak fiber/matrix adhesion.…”
Section: Resultsmentioning
confidence: 99%
“…The PCL graph also showed the typical nonlinear behavior of a ductile matrix with a gradual drop that suggested a weak interface. Meanwhile, the PLA curve indicated the characteristic behavior of a rigid matrix with a moderately strong interface [19][20][21][22]. As for the ternary mixture, the behavior resembled more that of TPS and PCL, even though the major component was PLA; the manner in which the load dropped suggested that the interface was weak.…”
Section: Scanning Electron Microscopy (Sem)mentioning
confidence: 95%
“…Concerning the FBPO tests, all experiments show the typical shape of the load-displacement curve for the type of failure occurring at the interface area [14,19,26] and is represented in Figure 3a for three measurements with the reference setting, respectively. A reason for this deviation for the same setting could be differences in the adhesive connection to the fiber, which might be influenced by inhomogeneities of the commercial silane-based surface treatment from the supplier.…”
Section: Fiber Bundle Pull-out Testmentioning
confidence: 99%
“…In terms of the various test setups, the FBPO test offers the opportunity to perform experiments faster, more easily, and more economically compared to single fiber measuring devices, which need more careful handling [22] and special test equipment [4]. Besides that, the tests are influenced by the following factors: e.g., (i) the complex stress distribution in a fiber bundle [13,23], (ii) fiber-fiber interaction [24] with more real failure modes [23], or (iii) the presence of statistically distributed filaments inside the fiber bundle [25,26]. These points have a significant effect on the interlaminar shear strength due to the variable cross-section areas of the fiber bundle [4].…”
Section: Introductionmentioning
confidence: 99%