PMID- 34070199
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210605
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 13
IP  - 10
DP  - 2021 May 18
TI  - Interface Modification, Water Absorption Behaviour and Mechanical Properties of 
      Injection Moulded Short Hemp Fiber-Reinforced Thermoplastic Composites.
LID - 10.3390/polym13101638 [doi]
LID - 1638
AB  - The effects of maleic anhydride, stearic acid and water absorption on the 
      physical and flexural properties of injection moulded short hemp fiber-reinforced 
      thermoplastic composites were investigated, in order to understand the 
      suitability of these materials for outdoor applications. The water absorption, 
      diffusion mechanisms and kinetics of composites were evaluated by immersing the 
      specimens in distilled water at 23  degrees C. Flexural fracture surface morphologies 
      were investigated in order to compare the results of flexural tests with 
      qualitative morphological observations. The process of water absorption was found 
      to follow the Fickian mode of diffusion. Flexural properties (Ef and sigmafm) were 
      affected by the water absorption. The addition of maleic anhydride and stearic 
      acid enhanced the resistance to water absorption of composites and resulted in a 
      slight increase of flexural properties of composites based on a high-density 
      polyethylene (HDPE) matrix. The reduction in flexural properties induced by the 
      degradation of matrix-fiber interfacial bonding due to water absorbed was 
      confirmed by scanning electron microscopy analysis.
FAU - Manaia, Joao P
AU  - Manaia JP
AD  - Laboratory for Wear, Testing & Materials (LED&MAT), Instituto Pedro Nunes, Rua 
      Pedro Nunes, 3030-199 Coimbra, Portugal.
FAU - Manaia, Ana
AU  - Manaia A
AD  - Laboratory for Wear, Testing & Materials (LED&MAT), Instituto Pedro Nunes, Rua 
      Pedro Nunes, 3030-199 Coimbra, Portugal.
LA  - eng
GR  - SOE2/P1/P0524/INTERREG SUDOE NABITEX project/
PT  - Journal Article
DEP - 20210518
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC8158523
OTO - NOTNLM
OT  - HDPE
OT  - PP
OT  - hemp fibers
OT  - maleic anhydride
OT  - stearic acid
OT  - water absorption
COIS- The authors declare no conflict of interest.
EDAT- 2021/06/03 06:00
MHDA- 2021/06/03 06:01
PMCR- 2021/05/18
CRDT- 2021/06/02 01:28
PHST- 2021/03/17 00:00 [received]
PHST- 2021/05/10 00:00 [revised]
PHST- 2021/05/11 00:00 [accepted]
PHST- 2021/06/02 01:28 [entrez]
PHST- 2021/06/03 06:00 [pubmed]
PHST- 2021/06/03 06:01 [medline]
PHST- 2021/05/18 00:00 [pmc-release]
AID - polym13101638 [pii]
AID - polymers-13-01638 [pii]
AID - 10.3390/polym13101638 [doi]
PST - epublish
SO  - Polymers (Basel). 2021 May 18;13(10):1638. doi: 10.3390/polym13101638.