PMID- 29702173
OWN - NLM
STAT- MEDLINE
DCOM- 20181016
LR  - 20181016
IS  - 1879-0003 (Electronic)
IS  - 0141-8130 (Linking)
VI  - 115
DP  - 2018 Aug
TI  - Lignin and holocellulose from pecan nutshell as reinforcing fillers in poly 
      (lactic acid) biocomposites.
PG  - 727-736
LID - S0141-8130(17)35064-X [pii]
LID - 10.1016/j.ijbiomac.2018.04.120 [doi]
AB  - Lignocellulose from agro-food biowaste represents a valuable source of 
      cost-effective structural fillers for wholly renewable polymer composites. In 
      this work, pecan (Carya illinoinensis) nutshell (NS) fiber and its structural 
      components, holocellulose (HC) and acid insoluble lignin (AIL), were isolated, 
      characterized and used as reinforcing fillers to manufacture poly(lactic acid) 
      (PLA) based biocomposites. Thermal, morphological and mechanical properties of 
      the prepared materials were analyzed. NS and HC acted as heterogeneous nucleating 
      agents, potentially able to control PLA physical aging. Moreover, they 
      significantly enhanced the viscoelastic response of PLA, mainly restricting the 
      melt molecular mobility due to hydrodynamic effects and the formation of a 
      three-dimensional particulate network. Flexural tests demonstrated that HC 
      induced a 25% increase in modulus compared to the plain polymer. AIL, conversely, 
      conferred higher ductility to the PLA matrix producing an increase in stress and 
      strain at break of 55% and 65%, respectively. Finally, all the biocomposites 
      showed lower resilience with respect to plain PLA due to the lack of chemical 
      adhesion between filler and matrix. These results emphasize the potential of NS 
      as a source of reinforcing filler in polymer-based biocomposites.
CI  - Copyright (c) 2018. Published by Elsevier B.V.
FAU - Agustin-Salazar, Sarai
AU  - Agustin-Salazar S
AD  - Departamento de Investigaciones Cientificas y Tecnologicas de la Universidad de 
      Sonora, Rosales y Blvd. Luis Encinas, C.P. 83000, Hermosillo, Sonora, Mexico.
FAU - Cerruti, Pierfrancesco
AU  - Cerruti P
AD  - Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Previati 1/E, 
      23900 Lecco, Italy. Electronic address: cerruti@ipcb.cnr.it.
FAU - Medina-Juarez, Luis Angel
AU  - Medina-Juarez LA
AD  - Departamento de Investigaciones Cientificas y Tecnologicas de la Universidad de 
      Sonora, Rosales y Blvd. Luis Encinas, C.P. 83000, Hermosillo, Sonora, Mexico.
FAU - Scarinzi, Gennaro
AU  - Scarinzi G
AD  - Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Campi Flegrei 
      34, 80078 Pozzuoli, Na, Italy.
FAU - Malinconico, Mario
AU  - Malinconico M
AD  - Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Campi Flegrei 
      34, 80078 Pozzuoli, Na, Italy.
FAU - Soto-Valdez, Herlinda
AU  - Soto-Valdez H
AD  - Centro de Investigacion en Alimentacion y Desarrollo, A.C., Carretera a La 
      Victoria km 0.6 C.P. 83304, Hermosillo, Sonora, Mexico.
FAU - Gamez-Meza, Nohemi
AU  - Gamez-Meza N
AD  - Departamento de Investigaciones Cientificas y Tecnologicas de la Universidad de 
      Sonora, Rosales y Blvd. Luis Encinas, C.P. 83000, Hermosillo, Sonora, Mexico. 
      Electronic address: nohemi.gamez@unison.mx.
LA  - eng
PT  - Journal Article
DEP - 20180424
PL  - Netherlands
TA  - Int J Biol Macromol
JT  - International journal of biological macromolecules
JID - 7909578
RN  - 0 (Polyesters)
RN  - 11132-73-3 (lignocellulose)
RN  - 459TN2L5F5 (poly(lactide))
RN  - 9005-53-2 (Lignin)
SB  - IM
MH  - Carya/*chemistry
MH  - Lignin/*chemistry
MH  - Mechanical Phenomena
MH  - Polyesters/*chemistry
MH  - Rheology
MH  - Temperature
OTO - NOTNLM
OT  - Biocomposites
OT  - Holocellulose
OT  - Lignin
OT  - Pecan nutshell
OT  - Poly (lactic acid)
EDAT- 2018/04/28 06:00
MHDA- 2018/10/17 06:00
CRDT- 2018/04/28 06:00
PHST- 2017/12/23 00:00 [received]
PHST- 2018/04/14 00:00 [revised]
PHST- 2018/04/23 00:00 [accepted]
PHST- 2018/04/28 06:00 [pubmed]
PHST- 2018/10/17 06:00 [medline]
PHST- 2018/04/28 06:00 [entrez]
AID - S0141-8130(17)35064-X [pii]
AID - 10.1016/j.ijbiomac.2018.04.120 [doi]
PST - ppublish
SO  - Int J Biol Macromol. 2018 Aug;115:727-736. doi: 10.1016/j.ijbiomac.2018.04.120. 
      Epub 2018 Apr 24.