Green hybrid composites partially reinforced with flax woven fabric and coconut shell waste-based micro-fillers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F24%3A100680" target="_blank" >RIV/60460709:41310/24:100680 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.indcrop.2024.119948" target="_blank" >https://doi.org/10.1016/j.indcrop.2024.119948</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.indcrop.2024.119948" target="_blank" >10.1016/j.indcrop.2024.119948</a>

Result language

angličtina

Original language name

Green hybrid composites partially reinforced with flax woven fabric and coconut shell waste-based micro-fillers

Original language description

This research is focused on hybrid green composites using flax woven fabric in which the matrix phase was further reinforced with coconut shell waste-based cellulosic microparticles as fillers. Mesoscale mechanical models were successfully developed to simulate the tensile properties of such hybrid composites based on hybridization of fibers and biobased materials using epoxy resin. S-glass fabrics with plain, twill and biaxial constructions, were used as the outer layers, while plain-woven flax fabric was used as the middle layer. A high level of agreement was observed between the experimental and predicted values. The static tensile tests were followed by cyclic tensile tests, microscopic analysis of fracture surfaces and dynamic mechanical analysis. The influence of the hybrid fabric geometry and combination with biowaste-based micro cellulosic material was observed to significantly influence the tensile properties determined by both experimental and numerical analysis. Dynamic mechanical analysis also validated the quasistatic measurements. A higher storage modulus and loss modulus were registered for the hybrid composites impregnated with a 1 % bio filler-based matrix. The damping factor (tan delta) was lower for the hybrid composites than for the nonhybrid samples and the control samples from the pure matrix. This difference is attributed to the stronger interface between the fibers and the particle-based matrix, which restricts the molecular mobility and increases the stiffness of the composites. Fractographic images were obtained by scanning electron microscopy (SEM) to study the failure modes and mechanisms of the composite samples. The microparticles were uniformly dispersed in the epoxy resin and thus enabled microcracking rather than macrocracks. The failure mainly occurred due to fiber failure, matrix cracking and delamination. Such hybrid composites are useful for exterior and interior components in automotive applications.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40101 - Agriculture

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

INDUSTRIAL CROPS AND PRODUCTS

ISSN

0926-6690

e-ISSN

0926-6690

Volume of the periodical

222

Issue of the periodical within the volume

2024-12-15

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

21

Pages from-to

—

UT code for WoS article

001350466500001

EID of the result in the Scopus database

2-s2.0-85207931727