Tensile behaviours of activated carbon coconut shell filled epoxy composites

This research is to develop a carbon composite prepared from carbon coconut shell reinforced with epoxy resin. Carbon coconut shell were selected from three types of coconut shell namely carbon Komeng coconut shell (CKCS), carbon young coconut shell (CYCS) and carbon ripe coconut shell (CRCS). The samples were prepared using epoxy resin reinforced with four different weight percentages of three types of carbon coconut shells starting with 0wt.%, 5wt.%, 10wt.% and 15wt.%. The Tensile behaviour of all samples was investigated to characterize the quality of the samples. The morphological study of reinforced samples was also conducted in this research by using SEM machine. The chemical composition and surface chemistry of these coconut shells were also determined to evaluate its importance in determining the end-use properties of composites

Study on compressive properties of syntactic foams for marine applications

Generally, syntactic foams are close pore foams fabricated by the mechanical mixing of hollow microsphere particles in a polymeric matrix resin. From the literature review, it was found that there are several polymeric resins that have been used for development of syntactic foams such as epoxy, cyanate ester, polypropylene, polysialate and vinyl ester. In this paper, a comparative discussion is presented on the mechanical properties and water absorption properties of hollow glass particles mixing with polymeric resins for development of syntactic foams for the use of these composites in bulk applications such as marine structures. From the previous reports, vinyl ester, epoxy resin, PP and PU as a matrix materials reinforced with glass microballoons are widely used for marine structure compared to other polymers. From the mechanical properties, the highest dynamic compress stress yield at 73.91MPa for dry NCSF 2%. Moisture condition result showed that the storage modulus and Tg for nanoclay reinforced syntactic foams up to 2% by weight increased when compared with their pure syntactic foam counterparts, irrespective of whether they were dry or moisture conditioned

Preliminary study on the development of syntactic foams for marine applications

This paper focuses on the comparison of various types of matrix materials and their mechanical properties for development of syntactic foams for marine applications. Generally, syntactic foams are close pore foams fabricated by the mechanical mixing of hollow microsphere particles in a polymeric matrix resin. From the literature review, it was found that there are several polymeric resins that have been used for development of syntactic foams such as epoxy, cyanate ester, polypropylene, polysialate and vinyl ester. In this paper, a comparative discussion is presented on the mechanical properties of hollow glass particles mixing with polymeric resins for development of syntactic foams for the use of these composites in bulk applications such as marine structures