Morphology and mechanical properties of heterophasic PP-EP/EVA/organoclay nanocomposites

Adriana Berenice Espinoza-Martínez; Eduardo Ramírez-Vargas; Saúl Sánchez-Valdes; Luis Francisco Ramos De Valle; Francisco J. Medellín-Rodríguez; Benjamin S. Hsiao; Lixia Rong; Mario Valera Zaragoza

doi:10.1002/app.38553

Morphology and mechanical properties of heterophasic PP-EP/EVA/organoclay nanocomposites

Adriana Berenice Espinoza-Martínez
, Eduardo Ramírez-Vargas
, Saúl Sánchez-Valdes
, Luis Francisco Ramos De Valle
, Francisco J. Medellín-Rodríguez
, Benjamin S. Hsiao
, Lixia Rong
, Mario Valera Zaragoza

Chemistry

Center for Research in Applied Chemistry
Universidad Autonoma de San Luis Potosi
Stony Brook University
Universidad del Papaloapan

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The effect of vinyl acetat (VA) on the morphological, thermal stability, and mechanical properties of heterophasic polypropylene-(ethylene-propylene) copolymer (PP-EP)/poly(ethylene vinyl acetate) (EVA)/organoclay nanocomposites was studied. Tailored organoclay C20A was selected to enhance the exfoliation of the clay platelets. Depending on the VA content, there were two morphological organoclay populations in the systems. Both populations were directly observed by scanning transmission electron microscopy and measured by wide-angle X-ray diffraction and small-angle X-ray scattering. The content of VA in EVA originated spherical and elongated morphologies in the resultant nanocomposites. High-VA content led to a better intercalation of the organoclay platelets. Measurement of thermal properties suggested that higher VA decreases thermal stability in samples both with and without organoclay, although nanocomposites had higher thermal stability than samples without clay. The storage modulus increased both with nanoclay and VA content. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

Original language	English
Pages (from-to)	3473-3479
Number of pages	7
Journal	Journal of Applied Polymer Science
Volume	128
Issue number	5
DOIs	https://doi.org/10.1002/app.38553
State	Published - Jun 5 2013

Keywords

morphology
nanocomposites
organoclay
PP-EP/EVA

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10.1002/app.38553

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@article{0c95eb56735042448c1026bb2e715a2e,

title = "Morphology and mechanical properties of heterophasic PP-EP/EVA/organoclay nanocomposites",

abstract = "The effect of vinyl acetat (VA) on the morphological, thermal stability, and mechanical properties of heterophasic polypropylene-(ethylene-propylene) copolymer (PP-EP)/poly(ethylene vinyl acetate) (EVA)/organoclay nanocomposites was studied. Tailored organoclay C20A was selected to enhance the exfoliation of the clay platelets. Depending on the VA content, there were two morphological organoclay populations in the systems. Both populations were directly observed by scanning transmission electron microscopy and measured by wide-angle X-ray diffraction and small-angle X-ray scattering. The content of VA in EVA originated spherical and elongated morphologies in the resultant nanocomposites. High-VA content led to a better intercalation of the organoclay platelets. Measurement of thermal properties suggested that higher VA decreases thermal stability in samples both with and without organoclay, although nanocomposites had higher thermal stability than samples without clay. The storage modulus increased both with nanoclay and VA content. {\textcopyright} 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013",

keywords = "morphology, nanocomposites, organoclay, PP-EP/EVA",

author = "Espinoza-Mart{\'i}nez, \{Adriana Berenice\} and Eduardo Ram{\'i}rez-Vargas and Sa{\'u}l S{\'a}nchez-Valdes and \{De Valle\}, \{Luis Francisco Ramos\} and Medell{\'i}n-Rodr{\'i}guez, \{Francisco J.\} and Hsiao, \{Benjamin S.\} and Lixia Rong and Zaragoza, \{Mario Valera\}",

year = "2013",

month = jun,

day = "5",

doi = "10.1002/app.38553",

language = "English",

volume = "128",

pages = "3473--3479",

journal = "Journal of Applied Polymer Science",

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T1 - Morphology and mechanical properties of heterophasic PP-EP/EVA/organoclay nanocomposites

AU - Espinoza-Martínez, Adriana Berenice

AU - Ramírez-Vargas, Eduardo

AU - Sánchez-Valdes, Saúl

AU - De Valle, Luis Francisco Ramos

AU - Medellín-Rodríguez, Francisco J.

AU - Hsiao, Benjamin S.

AU - Rong, Lixia

AU - Zaragoza, Mario Valera

PY - 2013/6/5

Y1 - 2013/6/5

N2 - The effect of vinyl acetat (VA) on the morphological, thermal stability, and mechanical properties of heterophasic polypropylene-(ethylene-propylene) copolymer (PP-EP)/poly(ethylene vinyl acetate) (EVA)/organoclay nanocomposites was studied. Tailored organoclay C20A was selected to enhance the exfoliation of the clay platelets. Depending on the VA content, there were two morphological organoclay populations in the systems. Both populations were directly observed by scanning transmission electron microscopy and measured by wide-angle X-ray diffraction and small-angle X-ray scattering. The content of VA in EVA originated spherical and elongated morphologies in the resultant nanocomposites. High-VA content led to a better intercalation of the organoclay platelets. Measurement of thermal properties suggested that higher VA decreases thermal stability in samples both with and without organoclay, although nanocomposites had higher thermal stability than samples without clay. The storage modulus increased both with nanoclay and VA content. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

AB - The effect of vinyl acetat (VA) on the morphological, thermal stability, and mechanical properties of heterophasic polypropylene-(ethylene-propylene) copolymer (PP-EP)/poly(ethylene vinyl acetate) (EVA)/organoclay nanocomposites was studied. Tailored organoclay C20A was selected to enhance the exfoliation of the clay platelets. Depending on the VA content, there were two morphological organoclay populations in the systems. Both populations were directly observed by scanning transmission electron microscopy and measured by wide-angle X-ray diffraction and small-angle X-ray scattering. The content of VA in EVA originated spherical and elongated morphologies in the resultant nanocomposites. High-VA content led to a better intercalation of the organoclay platelets. Measurement of thermal properties suggested that higher VA decreases thermal stability in samples both with and without organoclay, although nanocomposites had higher thermal stability than samples without clay. The storage modulus increased both with nanoclay and VA content. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

KW - morphology

KW - nanocomposites

KW - organoclay

KW - PP-EP/EVA

UR - https://www.scopus.com/pages/publications/84874932299

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DO - 10.1002/app.38553

M3 - Article

AN - SCOPUS:84874932299

SN - 0021-8995

VL - 128

SP - 3473

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JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 5

ER -

Morphology and mechanical properties of heterophasic PP-EP/EVA/organoclay nanocomposites

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Keywords

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