<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212019000400021</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Nanocompuestos con base polimérica resistente a impactos]]></article-title>
<article-title xml:lang="en"><![CDATA[Nanocomposites with resistent polymeric base to impacts]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Praderes-Cabrera]]></surname>
<given-names><![CDATA[Danay Gloria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de la Torre-González]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación y Desarrollo Técnico (CIDT)  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<fpage>21</fpage>
<lpage>36</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212019000400021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212019000400021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212019000400021&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Con el objetivo de determinar las propiedades mecánicas y de impacto a nanocompuestos de polipropileno con nanotubos de carbono multipared al 1, 3 y 5 %, se le realizaron estudios morfológicos con el Microscópico Electrónico de Barrido, obteniendo micrografías con una dispersión uniforme de los nanotubos en la matriz polimérica. Además, mediante la técnica de Análisis Dinámico Mecánico y los ensayos Izod y de Tracción, se observó de manera general, que a medida que se aumenta el contenido de los nanotubos, las propiedades mecánicas se incrementan con respecto a la matriz polimérica, lo que demuestra el efecto de reforzamiento. Por otra parte, se ve reflejado el aumento del módulo de almacenamiento dinámico, indicando un incremento de la rigidez. De acuerdo con los resultados obtenidos, se concluye que los nanocompuestos obtenidos son más ligeros y resistentes frente a colisiones e impactos, los cuales pueden ser empleados en diferentes sectores de la industria.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT For the goal of determining the mechanical and impact properties to nanocomposites of polypropylene with multiwall carbon nanotubes at 1, 3 and 5 %, morphologic studies using Scanning Electronic Microscope were accomplished, obtaining micrographics with a uniform dispersion of nanotubes in the polymeric matrix. Besides, by means of the technique of Mechanical Dynamic Analysis and essays Izod and traction, it was observed, in a general form, than to measure than increases the contents of nanotubes, the mechanical properties increase regarding the polymeric matrix, that demonstrate, the effect of reinforcement. On the other hand, the increase of the dynamic storage module, show an increment of stiffness. According to obtained results, it can be conclude that obtained nanocomposites are lighter and more resistant in front of collisions and impacts, which can be employ at different sectors of industry.]]></p></abstract>
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<kwd lng="es"><![CDATA[nanocompuestos]]></kwd>
<kwd lng="es"><![CDATA[nanotubos de carbono]]></kwd>
<kwd lng="es"><![CDATA[impacto]]></kwd>
<kwd lng="es"><![CDATA[resistentes]]></kwd>
<kwd lng="en"><![CDATA[nanocomposites]]></kwd>
<kwd lng="en"><![CDATA[carbon nanotubes]]></kwd>
<kwd lng="en"><![CDATA[impact]]></kwd>
<kwd lng="en"><![CDATA[resistant]]></kwd>
</kwd-group>
</article-meta>
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