Development of “Cissus quadrangularis” Composite Material with Elevated Mechanical Properties and Thermal Stability

The main objective of this work is to evaluate the mechanical and thermal strength of a recently developed composite made of Cissus quadrangularis fiber coupled with Polylacticacid (PLA) in comparison to other natural fibers. This study investigated three different fiber and PLA compositions—20%, 30...

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Bibliographic Details
Published in:Journal of composites science 2023-11, Vol.7 (11), p.445
Main Authors: Gummadavalli, Gopinath, Schuster, Jens, Shaik, Yousuf Pasha
Format: Article
Language:English
Subjects:
Biopolymers
calcium hydroxide Ca(OH)2
Cellulose fibers
Cissus quadrangularis fiber
Composite materials
Design of experiments
Elongation
Fiber composites
Fiber-matrix adhesion
Glass transition temperature
Injection molding
Lignin
Mechanical properties
Melt temperature
Modulus of rupture in bending
Optical microscopes
polylactic acid
Slaked lime
Stability analysis
stiffness
Thermal stability
toughness
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Summary:The main objective of this work is to evaluate the mechanical and thermal strength of a recently developed composite made of Cissus quadrangularis fiber coupled with Polylacticacid (PLA) in comparison to other natural fibers. This study investigated three different fiber and PLA compositions—20%, 30%, and 40%, respectively used to produce a composite. In contrast, another composite with the same volume percentage was created using calcium hydroxide Ca(OH)2 to coat the fibers in order to alter their microcrystalline structure and enhance their mechanical properties. The composite was created using an injection molding procedure. Tests were performed to assess the improved properties. According to a preliminary study, the mechanical characteristics of PLA combined with treated Cissus quadrangularis fiber are increased when compared to PLA coupled with untreated Cissus quadrangularis fiber and neat PLA. Calcium hydroxide acted as a binding agent in fiber to enhance stress transmission in the matrix, increasing tensile and flexural modulus as well as toughness elongation. Further DSC analysis showed that the inclusion of the preceding components increased the glass transition temperature and melting temperature. The temperature at the beginning of deflection has risen as a result of showing how increasing HDT, fiber–matrix adhesion, and fiber content are related. The morphological analysis was performed on both untreated and chemical-treated fiber composites by using an optical microscope to see the interaction with the fiber matrix.
ISSN:2504-477X
2504-477X
DOI:10.3390/jcs7110445