Chemical Modification of Palm Fibres Surface with Zirconium Oxychloride

Abstract

Chemical modification of natural fibres has been carried out using different methods for such purposes as reinforcement in polymer matrices and heavy metals adsorption. In this work, palm fibres were modified by zirconium oxychloride in situ. The palm fibres that had been chemically modified were compared to those in nature using fibres that passed through 20 and 40 mesh screens to evaluate the influence of particle size on modification. Palm fibres were modified with ZrO 2 .nH 2 O nanoparticles through the use of zirconium oxychloride in an acidic medium in the presence of palm fibres using ammonium solution (1:3) as the precipitating agent. Scanning electron microscopy (SEM), X-ray diffraction (XRD), infrared spectrophotometry (FTIR), and atomic emission spectrometry with inductively coupled plasma (ICP-AES) were used to characterize the hybrid materials. Results indicated that the particle size of the palm fibres influenced in the modification, because the fibres with smaller particle size had a greater deposition of inorganic material. The ICP technique revealed an increase of 21% nanoparticles ZrO 2 .nH 2 O deposited on fibres (40 mesh) when compared to fibres (20 mesh). The diameter of nanoparticles ZrO 2 .nH 2 O deposited on fibres was about 50 to 220 nm, as observed by SEM.

Effect of fibre orientation and stacking sequence on properties of hybrid composites

“…Since very few organic compounds in this area exhibit absorption, this can be an important analytical method. Figure 15 summarises the main infrared transitions for lignocellulosic materials [27].

Figure 15 FTIR spectrum of PPPF/PPLSF-VE hybrid composite.

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“…Zirconium Oxychloride nanoparticles have been used as heavy metal reinforcements for palm fibres. Inductively coupled plasma was used to characterise the resulting fibres, and it was found that the fibre with a smaller particle size had a more significant deposition of inorganic material [27]. It has been found that polyhedral oligomeric silsesquioxane-treated carbon nanotubes show finer-textured microstructure with a more uniform distribution into vinyl ester resin.…”