Author/Authors :
oushabi, abdessamad university of hassan ii of casablanca - faculty of sciences ben m’sik - laboratory of physico‑chemistry of applied materials (lpcma), Casablanca, Morocco , hassani, fahd oudrhiri national school of applied sciences (ensa), Safi, Morocco , abboud, younes university of hassan ii of casablanca - faculty of sciences ben m’sik - laboratory of physico‑chemistry of applied materials (lpcma), Casablanca, Morocco , sair, said university of hassan ii of casablanca - faculty of sciences ben m’sik - laboratory of physico‑chemistry of applied materials (lpcma), Casablanca, Morocco , tanane, omar university of hassan ii of casablanca - faculty of sciences ben m’sik - laboratory of physico‑chemistry of applied materials (lpcma), Casablanca, Morocco , el bouari, abdeslam university of hassan ii of casablanca - faculty of sciences ben m’sik - laboratory of physico‑chemistry of applied materials (lpcma), Casablanca, Morocco
Abstract :
In this paper, the effect of chemical treatments on date palm fibers (DPFs) properties was studied; DPFs were first treated with a 5 wt% NaOH aqueous solution for 1 h and then modified using two types of silane coupling agents (3-Mercaptopropyltrimethoxysilane and 3-Aminopropyltrimethoxysilane) with various concentrations (0.1, 0.5, 1 and 2 wt%) to improve the interfacial properties of DPFs with polymeric matrices. SEM observations showed the formation of silane layers on the alkalized surface of DPFs. The Fourier-transform infrared (FTIR) results showed that the salinization was successfully performed by forming covalent Si–O–C bonds between DPF and silane coupling agent. The pull-out behavior of treated fibers was also investigated using two matrices; polyurethane (PU) and epoxy. The obtained results showed that the treatments have successfully improved the interfacial bond characteristics of DPF-PU and DPF-Epoxy systems.
Keywords :
Date palm fibers , Alkali , silane treatment , Interfacial shear stress , Pull , out test , Epoxy , Polyurethane
