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Composite properties and biodegradation of biologically recovered P(3HB-co-3HHx) reinforced with short kenaf fibers

Joyyi, Lee; Ahmad Thirmizir, Mohd Zharif; Salim, Muhamad Saifuddin; Han, Lizhu; Murugan, Paramasivam; Kasuya, Ken ichi; Maurer, Frans H J LU ; Zainal Arifin, Mohd Ishak and Sudesh, Kumar (2017) In Polymer Degradation and Stability 137. p.100-108
Abstract

A compression-molded green composite material comprising of bacterially synthesized poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) [P(3HB-co-3HHx)] and short kenaf fibers (KF) was prepared in the present study. Accordingly, P(3HB-co-3HHx) was produced by the Cupriavidus necator Re2058/pCB113 using the palm oil as the sole carbon source, while the polyhydroxyalkanoate (PHA) copolymer with ∼99% purity was recovered from the bacterial cells using a newly reported solvent-free biological recovery method. Experimental results showed that P(3HB-co-3HHx) containing 30 wt % KF possessed the highest flexural strength and similar or better comparable mechanical performance compared to that of the low density polyethylene (LDPE), LDPE/KF composites... (More)

A compression-molded green composite material comprising of bacterially synthesized poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) [P(3HB-co-3HHx)] and short kenaf fibers (KF) was prepared in the present study. Accordingly, P(3HB-co-3HHx) was produced by the Cupriavidus necator Re2058/pCB113 using the palm oil as the sole carbon source, while the polyhydroxyalkanoate (PHA) copolymer with ∼99% purity was recovered from the bacterial cells using a newly reported solvent-free biological recovery method. Experimental results showed that P(3HB-co-3HHx) containing 30 wt % KF possessed the highest flexural strength and similar or better comparable mechanical performance compared to that of the low density polyethylene (LDPE), LDPE/KF composites and high density polyethylene (HDPE). Water absorption and soil burial tests were also performed to evaluate the durability of the P(3HB-co-3HHx)/KF composites. As compared to that of the pristine P(3HB-co-3HHx), it was determined that P(3HB-co-3HHx)/KF composites demonstrated higher water absorption percentage and showed higher percentage of weight loss during the soil degradation study. Burkholderia sp., Streptomyces sp., Amycolatopsis sp. and Streptacidiphilus sp. that involved in the biodegradation of P(3HB-co-3HHx)/KF composites during the soil degradation study were successfully isolated and characterized. These species had the capability to degrade the composite material in vitro.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biodegradation, Green composite, Kenaf, Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), Water absorption
in
Polymer Degradation and Stability
volume
137
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:85010696871
  • wos:000396948100009
ISSN
0141-3910
DOI
10.1016/j.polymdegradstab.2017.01.004
language
English
LU publication?
yes
id
1f4d3f00-2252-4182-96d2-c0038e961d8d
date added to LUP
2017-02-14 09:02:31
date last changed
2018-05-06 04:30:46
@article{1f4d3f00-2252-4182-96d2-c0038e961d8d,
  abstract     = {<p>A compression-molded green composite material comprising of bacterially synthesized poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) [P(3HB-co-3HHx)] and short kenaf fibers (KF) was prepared in the present study. Accordingly, P(3HB-co-3HHx) was produced by the Cupriavidus necator Re2058/pCB113 using the palm oil as the sole carbon source, while the polyhydroxyalkanoate (PHA) copolymer with ∼99% purity was recovered from the bacterial cells using a newly reported solvent-free biological recovery method. Experimental results showed that P(3HB-co-3HHx) containing 30 wt % KF possessed the highest flexural strength and similar or better comparable mechanical performance compared to that of the low density polyethylene (LDPE), LDPE/KF composites and high density polyethylene (HDPE). Water absorption and soil burial tests were also performed to evaluate the durability of the P(3HB-co-3HHx)/KF composites. As compared to that of the pristine P(3HB-co-3HHx), it was determined that P(3HB-co-3HHx)/KF composites demonstrated higher water absorption percentage and showed higher percentage of weight loss during the soil degradation study. Burkholderia sp., Streptomyces sp., Amycolatopsis sp. and Streptacidiphilus sp. that involved in the biodegradation of P(3HB-co-3HHx)/KF composites during the soil degradation study were successfully isolated and characterized. These species had the capability to degrade the composite material in vitro.</p>},
  author       = {Joyyi, Lee and Ahmad Thirmizir, Mohd Zharif and Salim, Muhamad Saifuddin and Han, Lizhu and Murugan, Paramasivam and Kasuya, Ken ichi and Maurer, Frans H J and Zainal Arifin, Mohd Ishak and Sudesh, Kumar},
  issn         = {0141-3910},
  keyword      = {Biodegradation,Green composite,Kenaf,Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate),Water absorption},
  language     = {eng},
  month        = {03},
  pages        = {100--108},
  publisher    = {Elsevier},
  series       = {Polymer Degradation and Stability},
  title        = {Composite properties and biodegradation of biologically recovered P(3HB-co-3HHx) reinforced with short kenaf fibers},
  url          = {http://dx.doi.org/10.1016/j.polymdegradstab.2017.01.004},
  volume       = {137},
  year         = {2017},
}