Thermomechanical behavior of graphene nanoplatelets and bamboo micro filler incorporated epoxy hybrid composites

Abstract

The present study is focused on the development of micro bamboo filler/epoxy hybrid composite with the incorporation of varied weight percentage of graphene nanoplatelet (GNPs). To check the effect of inclusion of dual fillers on the structural x-ray diffraction (XRD), morphological analysis by Scanning electron microscope (SEM) and thermomechanical analysis (TMA) are carried out. The micro bamboo and GNPs filler in the epoxy polymer are incorporated to eradicate the problem associated with natural and synthetic fibers alignment, delamination, and anisotropic property in the thermoset composite materials. Results revealed that with the inclusion of graphene nanoplatelet with bamboo filler in epoxy composite improves the synergetic effect, which in turn increases the tensile, flexural, loss modulus and storage modulus of developed hybrid composite material. SEM analysis confirmed the proper distribution of fillers and their presence from XRD analysis. All fabricated hybrid composite displayed improved thermal conductivity value and a marginal increase in the corrosion rate. The overall result predicts that the improvement is quite better compared to neat or solo bamboo filler based epoxy composite. The improvement is ascribed due to the proper interfacial bonding or cross-link between micro bamboo filler/epoxy polymer with the addition of GNPs. Developed filler based hybrid composite may be utilized for the application of thermal interface material, circuit board, electronic packaging, etc.

Mechanical performance and thermal stability of modified epoxy nanocomposite with low loading of graphene platelets

“…This suggests that the presence of GNP at a certain concentration could disturb the amorphous phase of epoxy matrix. This is related to the increased crystallinity degree of the epoxy/LENR with the inclusion of GNP (28.3–34.6%, as referring to Table 3) compared to the neat epoxy/LENR (23.9%), as stated in the study of Gouda et al 33 For higher GNP loading of 0.6 and 0.8 wt%, the characteristic peak of GNP was present which may contribute to the disturbance of the particular peak. A reduction in this peak intensity compared to the pristine GNP implies the intercalation state of graphene sheets at this composition.…”

Mechanical Characterization and Structural Attributes of Biohybrid Composites Derived Using Hemp, Bamboo, and Jute Fibres: an Alternative Approach in the Application of Natural Fibres in Automobile Parts

“…The developed brake pads using seashell powder gave a better friction coefficient as the optimal value (0.48) falls within the class G (0.45 to 0.55) type of brake pads recommended for use by the Society of Automobile Engineers (SAE) [10]. It was found that poor binding with epoxy/natural filler, agglomeration issue under a higher filler weight %, and also susceptible to increased moisture content [11]. Several types of research studies have analysed its effect on the recycling of polypropylene (PP), which is known as the most widely used matrix in terms of composite materials reinforced alongside natural fibres [12].…”

Investigation of the thermomechanical performance of hybrid polymer composite using micro bamboo powder and graphite flakes

“…where Cr represents the crystallinity index corresponding to maximum intensity (I 0 002 ) and minimum intensity (I 0 am ). 16,17 The treated filler significantly improves the crystallinity behavior from 55.38% to 68.54%. Due to the alkali treatment, the difference in the bamboo filler's crystalline phase was inspected using the XRD spectra of both untreated and treated bamboo powder shown in Figure 2.…”