Título: Influencia de la concentración de silano y porcentaje en peso de fibra de palma de aguaje (mauritia flexuosa) sobre la resistencia al impacto en un compuesto de matriz poliéster
Asesor(es): Vega Anticona, Alexander
Fecha de publicación: ene-2019
Institución: Universidad Nacional de Trujillo
Resumen: Influencia de la concentración de silano y
porcentaje en peso de fibra de palma de aguaje
(mauritia flexuosa) sobre la resistencia al
impacto en un compuesto de matriz poliéster
Nota: In the present reasearch, the influence of the concentration of N- (2a-aminoethyl) -3-
aminopropyltrimethoxysilane diluted in ethanol (95% pure) in the silanization process
during 1 hour, the percentage in the weight of the aguaje palm fiber (Mauritia flexuosa),
on the impact resistance in a compound of unsaturated polyester matrix molded by
compression at a constant pressure of 3500 psi. The impact resistance test was carried out
under the UNE EN ISO 179-1 standard. The results of the impact test of polyester resin
are compared with compounds reinforced with aguaje fiber to treat and silanized at 1, 2
and 3% (v / v), with different percentages of fiber by weight (25, 30 and 35%), obtaining
the best result in the composite reinforced with 2% silanized aguaje fiber with 35% fiber
by weight, giving an impact resistance of 51.50 KJ / m2, improving the properties of
impact resistance.
Likewise, the analysis was performed on the fracture mechanism. The contents of
cellulose, hemicellulose, waxes and fats and moisture present in the palm fiber of the
aguaje are characterized by standard test methods, standard ASTM D1107-96. The
increase in the percentages of holocellulose and cellulose indicates the best mechanical
properties, as well as the decrease in humidity, the property of the resistance and the
reduction of the hydrophilic hydroxyl groups.
Finally, a morphological study was carried out by means of analysis as visual evidence
of the aguaje fibers, thanks to the silanization, they improved their interfacial
characteristics. In addition, an FTIR spectrometry analysis was carried out to study its
chemical composition, demonstrating in this way the slight increase in cellulose and
holocellulose and percentage of moisture, and the decrease in hemicellulose, lignin and
fats.
Disciplina académico-profesional: Ingeniería
Institución que otorga el grado o título: Universidad Nacional de Trujillo. Facultad de Ingeniería
Grado o título: Ingeniero de Materiales
Fecha de registro: 1