Characterization and properties of cellulose microfibers from water
hyacinth filled sago starch biocomposites
Edi Syafri a,*, Jamaluddina, SentotWahono b, Irwan A. a, Mochamad Asrofi c,
Nasmi Herlina Sari d, Ahmad Fudholi e
a Department of Agricultural Technology, Agricultural Polytechnic, Payakumbuh, West Sumatra 26271, Indonesia
b Department of Agriculture and Horticulture, Agricultural Polytechnic, Payakumbuh,West Sumatra 26271, Indonesia
c Laboratory of Material Testing, Department of Mechanical Engineering, University of Jember, Kampus Tegalboto, Jember 68121, East Java, Indonesia
d Department of Mechanical Engineering, Mataram University, Jl. Majapahit No. 62, Mataram, NTB 83126, Indonesia
e Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
- Correspondence author
a b s t r a c t
The cellulose microfibers (CMF) fromwater hyacinth (WH) fiber as a filler in sago starch (SS) biocompositeswas
investigated. The CMF was isolated by pulping, bleaching and acid hydrolysis methods. The addition of CMF in
sago matrix was varied i.e. 0, 5, 10, 15 and 20wt%. Biocomposites were made by using solution casting and glycerolas a plasticizer. The biocomposites were also determined by tensile test, FTIR, X-Ray, thermogravimetric,
SEM, and soil burial tests. The results show that the SS15CMF sample has the highest tensile strength of
10.23MPa than those other samples. Scanning Electron Microscope (SEM) images show that the strong interaction was formed between CMFWH and matrix. Fourier Transform Infra-red (FTIR) indicated that the functional group of biocomposites was a hydrophilic cluster. The addition of CMFWH in sago starch biocomposites lead tothemoisture barrier, crystallinity, and thermal stability increased; it is due to the pure sago starch filmwasmorerapidly degraded than its biocomposites.
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