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Properties of chemically treated natural amorphous silica fibers as polyurethane reinforcement
Author(s) -
Barra Guilherme M.O.,
Fredel Márcio C.,
AlQureshi Hazim A.,
Taylor Arthur W.,
Clemenceau C.
Publication year - 2006
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20229
Subject(s) - materials science , composite material , polyurethane , composite number , glass fiber , amorphous solid , natural fiber , fiber , reinforcement , adhesion , phase (matter) , chemistry , organic chemistry
A novel kind of short natural fiber obtained from mineral resources, which consists mainly of pure amorphous SiO 2 , was chemically modified with aminosilane to improve its interfacial adhesion in polyurethane composites. The effect of the treatment as well as the aspect ratio of the fibers on the mechanical properties of the composite were evaluated and compared with properties obtained with glass fibers composites, which are commonly used in industry. The results obtained show that these natural fibers are potential candidates for the substitution of glass fibers as a reinforcement phase in polymer composites, since the mechanical properties obtained were in all cases equal or superior to the ones obtained with commercial glass fibers. POLYM. COMPOS. 27:582–590, 2006. © 2006 Society of Plastics Engineers.