PMID- 36850096
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230301
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 15
IP  - 4
DP  - 2023 Feb 6
TI  - Dynamic Fracture Resistance under Plane Strain Conditions of High-Density 
      Polyethylene Nanoclay Composites.
LID - 10.3390/polym15040813 [doi]
LID - 813
AB  - Polymer nanoclay composites have received significant attention due to their 
      substantially enhanced mechanical, thermal and barrier properties. However, the 
      effect of these nanoclays on the dynamic fracture resistance of a polymer matrix 
      during fast fracture events has not been documented. In this study, the effect of 
      nanoclay addition on the rapid crack propagation (RCP) resistance of high-density 
      polyethylene (HDPE) was investigated through the high-speed double torsion test. 
      Results showed that the addition of 1, 3, and 5% of nanoclays improved the 
      dynamic fracture resistance under the plane strain conditions (Gd1) of HDPE up to 
      65%. An increase in the storage and loss modulus, and a decrease in crystallinity 
      and melt flow index with nanoclay content was also found. Although the presence 
      of agglomerates can hinder the enhancement of Gd1 as it promotes agglomerate 
      fracture and debonding, the increase in energy consumption through fibrillation 
      and crazing promoted by the nanoclay prevails, suggesting that the nanoclay's 
      toughening effect that has been extensively reported under quasi-static and 
      impact tests, is also present under RCP conditions, and that the HDPE 
      nanocomposites could be used in applications in which RCP must be prevented.
FAU - Lopez-Cabrera, H R
AU  - Lopez-Cabrera HR
AD  - Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Atizapan de Zaragoza 
      52926, Mexico.
FAU - Figueroa-Lopez, U
AU  - Figueroa-Lopez U
AD  - Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Atizapan de Zaragoza 
      52926, Mexico.
FAU - Taylor, A C
AU  - Taylor AC
AUID- ORCID: 0000-0003-0863-8423
AD  - Department of Mechanical Engineering, Imperial College London, South Kensington 
      Campus, London SW7 2AZ, UK.
FAU - Guevara-Morales, A
AU  - Guevara-Morales A
AUID- ORCID: 0000-0003-2744-2346
AD  - Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Atizapan de Zaragoza 
      52926, Mexico.
LA  - eng
PT  - Journal Article
DEP - 20230206
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC9961857
OTO - NOTNLM
OT  - crazing
OT  - dynamic fracture resistance
OT  - high-speed double torsion test
OT  - montmorillonite nanoclays
OT  - polymer nanocomposites
OT  - rapid crack propagation
COIS- The authors declare no conflict of interest. The funder had no role in the design 
      of the study; in the collection, analyses, or interpretation of data; in the 
      writing of the manuscript; or in the decision to publish the results.
EDAT- 2023/03/01 06:00
MHDA- 2023/03/01 06:01
PMCR- 2023/02/06
CRDT- 2023/02/28 01:09
PHST- 2022/12/23 00:00 [received]
PHST- 2023/01/24 00:00 [revised]
PHST- 2023/01/27 00:00 [accepted]
PHST- 2023/02/28 01:09 [entrez]
PHST- 2023/03/01 06:00 [pubmed]
PHST- 2023/03/01 06:01 [medline]
PHST- 2023/02/06 00:00 [pmc-release]
AID - polym15040813 [pii]
AID - polymers-15-00813 [pii]
AID - 10.3390/polym15040813 [doi]
PST - epublish
SO  - Polymers (Basel). 2023 Feb 6;15(4):813. doi: 10.3390/polym15040813.