SYNTHESIS AND CHARACTERISATION OF COIR FIBER REINFORCED EPOXY COMPOSITES FROM PUNNAL OIL

Vegetable oil is readily available and inexpensive, can be used to synthesise various types of polymers. In our present study, epoxidised punnal oil has been synthesised from punnal oil via peroxy acetic acid generated ‘insitu’ by treating acetic acid with hydrogen peroxide as oxygen donor. The epoxidation is catalysed by using sulphuric acid. The epoxidation is confirmed by iodine value, oxirane oxygen analysis, fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) and thin layer chromatography (TLC) analysis.Natural fibers such as jute, sisal, banana, rice husk etc are locally available in abundance and have excellent physical and mechanical properties and can be used more effectively in the development of composite materials for various applications. Epoxy composite samples are prepared from the natural fiber with different ratios using triethylamine hardener and pthaleic anhydride. The mechanical properties viz. tensile strength and the physical properties observed are discussed in detai

SYNTHESIS AND CHARACTERIZATION OF NATURAL FIBRE REINFORCED POLYURETHANE COMPOSITES BASED ON CARDANOL

In recent studies importance has been given to the use of natural products from renewable resources due to the decrease in the supply and price escalations of petroleum raw materials. Cardanol based resole type phenolic resin has been synthesized by condensing cardanol with furfural in a particular mole ratio using dicarboxylic acid catalyst such as phthalic acid. Polyurethane sheets were prepared by treating cardanol furfural resin with 4,41 – methylene bis(cyclohexyl isocyanate)  and the catalyst dibutyltin dilaurate. Natural fibres are prospective reinforcing materials and their use until now has been more traditional than technical.  Among the various fibres sisal is of particular interest in that its composites have high impact strength besides having moderate tensile and flexural properties compared to other fibres.  Fibre reinforced polyurethane composites have been prepared by treating sisal fibre  (10%) into polyurethane. The physico chemical, spectral and thermal properties of polyurethane and fibre reinforced polyurethane composites have been studied

1st National Conference on Innovations in Chemical Sciences & Technology (Abstract Proceedings)

We the Department of Chemistry, Scott Christian College (Autonomous) put forth the National Conference on Innovations in Chemical Sciences and Technology NCICST- 2015 covering the concepts to update the various version of chemistry. It is the sincere hope of organizers of NCICST 2015 that the deliberations and proceedings of the conference will be fruitfully utilized by researchers in forthcoming days. I take this opportunity to express my gratitude to all the organizers and faculty members of the Department of Chemistry for their sincere efforts. And I will feel grateful if this conference could contribute its mile to the world and society to bring up prosperity and enlightenment.Dr.A.Malar Retna Convener NCICSTTranslated in MalayKami Jabatan Kimia, Christian College Scott (Autonomi) putforth Persidangan Kebangsaan Inovasi dalam Sains Kimia dan Teknologi NCICST- 2015 meliputi konsep untuk mengemaskini versi pelbagai kimia. Adalah menjadi harapan ikhlas penganjur NCICST 2015, bahawa pertimbangtelitian dan prosiding persidangan itu akan fruitfully digunakan oleh penyelidik dalam hari keluar akan datang.Saya mengambil kesempatan ini untuk mengucapkan terima kasih kepada semua pihak penganjur dan fakultianggota Jabatan kimia untuk usaha-usaha ikhlas mereka. Aku akan bersyukur jika persidangan ini boleh menyumbang batu kepada dunia dan masyarakat untuk membawa kemakmuran dan penyedaran