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Study on depositing SiO 2 nanoparticles on the surface of jute fiber via hydrothermal method and its reinforced polypropylene composites
Author(s) -
Chen Haiyan,
Cui Yihua,
Liu Xuan,
Zhang Miao,
Hao Senjie,
Yin Yuehong
Publication year - 2020
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.21714
Subject(s) - materials science , ultimate tensile strength , composite material , polypropylene , hydrothermal circulation , nanoparticle , fiber , amorphous solid , fourier transform infrared spectroscopy , izod impact strength test , composite number , particle size , chemical engineering , nanotechnology , chemistry , organic chemistry , engineering
To improve the interfacial compatibility of jute fiber reinforced polypropylene (PP) composites, hydrothermal method was used to deposit SiO 2 nanoparticles on the surface of pretreated jute fibers and the effect of reaction factors (tetraethoxysilane [TEOS] concentration, ammonia concentration, and reaction temperature) on the deposition of SiO 2 nanoparticles were evaluated. The results of FTIR, XRD, SEM, and TEM showed that the amorphous SiO 2 nanoparticles with an average particle size of 65.0 nm were successfully deposited on the surface of jute fibers at the TEOS/H 2 O volume ratio of 1:2, ammonia of 0.55 M, reaction temperature of 100 °C (0.15 MPa) for 5 h. Compared with the sol–gel method, SiO 2 nanoparticles obtained by the hydrothermal method possessed smaller particle size and were less agglomerated, which can better fill in the surface defects of the jute fibers and result in a 12.9% increase in the tensile strength. The study on the mechanical properties and interface performance of the jute fiber reinforced PP composites indicated that the interfacial compatibility between jute fibers and PP was obviously improved. The tensile and impact strength of the composites reinforced with nano‐SiO 2 deposited jute fibers were increased by 26.87% and 25.65%, respectively, compared with the untreated jute fibers. J. VINYL ADDIT. TECHNOL., 26:43–54, 2020. © 2019 Society of Plastics Engineers