PMID- 34641161
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211016
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 13
IP  - 19
DP  - 2021 Sep 29
TI  - Effect of Processing Techniques on the Microstructure and Mechanical Performance 
      of High-Density Polyethylene.
LID - 10.3390/polym13193346 [doi]
LID - 3346
AB  - The versatility of high-density polyethylene (HDPE) makes it one of the most used 
      polymers for vast applications ranging from food packaging to human implants. 
      However, there still is confusion regarding the proper selection of processing 
      techniques to produce HDPE specimens for high-end applications. Herein, we 
      compare the processing of HDPE by two relevant techniques: compression and 
      injection molding. The fabricated samples were studied using uniaxial tensile 
      testing to determine their mechanical performance. Furthermore, the 
      microstructure of samples was analyzed using different characterization 
      techniques. Compression-molded specimens recorded a higher degree of 
      crystallinity (DC) using two different characterization techniques such as 
      differential scanning calorimetry (DSC) and X-ray diffraction (XRD). With this 
      information, critical processing factors were determined, and a general 
      structure-property relationship was established. It was demonstrated that having 
      a higher DC resulted in higher yield strength and Young's modulus. Furthermore, 
      premature failure was observed in the injection-molded specimens, resulting in 
      lower mechanical performance. This premature failure was caused due to flow marks 
      observed using scanning electron microscopy (SEM). Therefore, it is concluded 
      that compression molding produces superior samples compared to injection molding.
FAU - Mejia, Edgar
AU  - Mejia E
AD  - Mechanical Engineering Department, College of Engineering, United Arab Emirate 
      University, Al Ain 15551, United Arab Emirates.
FAU - Cherupurakal, Nizamudeen
AU  - Cherupurakal N
AUID- ORCID: 0000-0002-8819-4027
AD  - Mechanical Engineering Department, College of Engineering, United Arab Emirate 
      University, Al Ain 15551, United Arab Emirates.
FAU - Mourad, Abdel-Hamid I
AU  - Mourad AI
AUID- ORCID: 0000-0002-8356-0542
AD  - Mechanical Engineering Department, College of Engineering, United Arab Emirate 
      University, Al Ain 15551, United Arab Emirates.
AD  - National Eater and Energy Center, United Arab Emirate University, Al Ain 15551, 
      United Arab Emirates.
AD  - Mechanical Design Department, Faculty of Engineering, Helwan University, Cairo 
      11795, Egypt.
FAU - Al Hassanieh, Sultan
AU  - Al Hassanieh S
AUID- ORCID: 0000-0001-7276-7460
AD  - Mechanical Engineering Department, College of Engineering, United Arab Emirate 
      University, Al Ain 15551, United Arab Emirates.
FAU - Rabia, Mohamed
AU  - Rabia M
AD  - Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef 
      University, Beni-Suef 62514, Egypt.
LA  - eng
GR  - 31N392/United Arab Emirates University/
PT  - Journal Article
DEP - 20210929
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC8512384
OTO - NOTNLM
OT  - compression molding
OT  - high-density polyethylene
OT  - injection molding
OT  - mechanical properties
OT  - microstructure
COIS- The authors declare no conflict of interest.
EDAT- 2021/10/14 06:00
MHDA- 2021/10/14 06:01
PMCR- 2021/09/29
CRDT- 2021/10/13 01:13
PHST- 2021/09/05 00:00 [received]
PHST- 2021/09/23 00:00 [revised]
PHST- 2021/09/27 00:00 [accepted]
PHST- 2021/10/13 01:13 [entrez]
PHST- 2021/10/14 06:00 [pubmed]
PHST- 2021/10/14 06:01 [medline]
PHST- 2021/09/29 00:00 [pmc-release]
AID - polym13193346 [pii]
AID - polymers-13-03346 [pii]
AID - 10.3390/polym13193346 [doi]
PST - epublish
SO  - Polymers (Basel). 2021 Sep 29;13(19):3346. doi: 10.3390/polym13193346.