TY - JOUR
T1 - Molecular interactions arising in polyethylene-bentonite nanocomposites
AU - Bonilla-Blancas, A. E.
AU - Romero-Ibarra, I. C.
AU - Vazquez-Arenas, J.
AU - Sanchez-Solis, A.
AU - Manero, O.
AU - Alvarez-Ramirez, J.
N1 - Publisher Copyright:
© 2018 Wiley Periodicals, Inc.
PY - 2019/1/10
Y1 - 2019/1/10
N2 - High density polyethylene (HDPE), linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) are blended, and compared against a similar mixture but functionalized LDPE with maleic anhydride (MAh), HDPE-LLDPE-LDPE-g-MAh. In order to obtain nanocomposites from these polymer blends, a modified bentonite was added by incorporating l-lysine into the bentonite galleries by melt extrusion. The resulting nanocomposites presented improved mechanical properties linked to strong polymer-bentonite interactions and exfoliated structures as verified by transmission electron microscopy and rheometry. A detailed analysis of the feasible polymer-bentonite interactions was conducted, of particular concern between the polar MAh groups and the intercalated l-lysine. To gain further insights into the type of molecular interactions (i.e. polymer-bentonite), a model nanocomposite was synthesized in solution to carry out further assessments through NMR, infrared spectroscopy and rheology analysis.
AB - High density polyethylene (HDPE), linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) are blended, and compared against a similar mixture but functionalized LDPE with maleic anhydride (MAh), HDPE-LLDPE-LDPE-g-MAh. In order to obtain nanocomposites from these polymer blends, a modified bentonite was added by incorporating l-lysine into the bentonite galleries by melt extrusion. The resulting nanocomposites presented improved mechanical properties linked to strong polymer-bentonite interactions and exfoliated structures as verified by transmission electron microscopy and rheometry. A detailed analysis of the feasible polymer-bentonite interactions was conducted, of particular concern between the polar MAh groups and the intercalated l-lysine. To gain further insights into the type of molecular interactions (i.e. polymer-bentonite), a model nanocomposite was synthesized in solution to carry out further assessments through NMR, infrared spectroscopy and rheology analysis.
KW - bentonite
KW - functionalized ternary blends
KW - molecular interactions
KW - nanocomposite
KW - polyethylene
UR - http://www.scopus.com/inward/record.url?scp=85053562207&partnerID=8YFLogxK
U2 - 10.1002/app.46920
DO - 10.1002/app.46920
M3 - Artículo
AN - SCOPUS:85053562207
SN - 0021-8995
VL - 136
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 2
M1 - 46920
ER -