Open AccessInvestigate coir fibers’ properties produced by coconut fiber extracting machine in Ben Tre and research the treatment for fiber with NaOH solution
Author(s) -
Viet Nguyen,
Linh Vu Viet Nguyen,
Sinh Ngoc Pham,
Tuyen Ngoc Kim Nguyen,
Tri Minh Phan,
Thanh Dac Nguyen
Publication year - 2014
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v17i2.1363
Subject(s) - coir , sodium hydroxide , ultimate tensile strength , materials science , fiber , composite material , composite number , pulp and paper industry , chemical engineering , engineering
Over past few years, the polymer composite materials based on coir fibers have grown rapidly and have even found new markets as well as many research projects due to its cost effect and environmentally-friendly manner. In Vietnam, the coir fibers have a good quality, especially in Ben Tre province. In this research, we investigated the size of coir fibers which was produced from dried nuts stripped via hand-made coir fiber extracting machine. The coir fibers with the largest diameter distribution have evaluated the average tensile strength. In the other hand, the coir fibers have treated via a sodium hydroxide solution process to obtained refine-coir fibers which were following investigated the mechanical testing based on composite materials of polyester resin. The results showed that the treatment of the sodium hydroxide solution process causes a decrease of coir fiber average diameter. Increasing the temperature and concentration of sodium hydroxide solution leads to the decreasing of coir fiber average diameter. Moreover, the optimum condition (5% of NaOH, 50oC) enhanced the tensile strength of fibers reaching to 40% comparing with those untreated fibers.