Green composite sponge of natural rubber reinforced with cellulose filler using alginate as a dispersing agent
Issued Date
2023-11-01
Resource Type
ISSN
22387854
Scopus ID
2-s2.0-85174739380
Journal Title
Journal of Materials Research and Technology
Volume
27
Start Page
3119
End Page
3130
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Materials Research and Technology Vol.27 (2023) , 3119-3130
Suggested Citation
Suppanucroa N., Nimpaiboon A., Boonchuay K., Khamkeaw A., Phisalaphong M. Green composite sponge of natural rubber reinforced with cellulose filler using alginate as a dispersing agent. Journal of Materials Research and Technology Vol.27 (2023) , 3119-3130. 3130. doi:10.1016/j.jmrt.2023.10.139 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/90867
Title
Green composite sponge of natural rubber reinforced with cellulose filler using alginate as a dispersing agent
Other Contributor(s)
Abstract
Composite sponges of natural rubber and cellulose fiber (NR-C) using sodium alginate (SA) as a dispersing agent were successfully fabricated by the Dunlop process. The aim of this work was to develop a green composite NR-C sponge with high mechanical properties and efficient water absorption capacity (WAC). The addition of SA could promote cellulose fiber dispersion in NR matrix and NR-cellulose interactions; accordingly, it resulted in highly macro-porous sponges with improved mechanical properties and higher hydrophilicity. NR-C sponge supplemented with cellulose at 45 parts per hundred rubbers (phr) and SA at 1 phr revealed significantly higher compressive stress and higher modulus of elasticity of about 5 times those of NR sponge. The maximum WAC at around 400 % was obtained from NR-C sponge supplemented with 30–45 phr cellulose and 1 phr SA. The initial water absorption rate and WAC of NR-C sponges were increased up to 5.6 and 1.8 times those of NR sponges, respectively. In addition, NR-C reinforced with high content of cellulose and SA could be sufficiently biodegraded in soil for about 21–27 % in120 days, which was considerably higher than that of NR sponges. According to their improved properties, NR-C composite sponges could be used an adsorbent or supporting material in many applications, including agriculture applications, such as a seed germination sponge or a hydroponic planting material and could also be further developed for biomedical applications as wound dressing.