Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board

The phenolic content in lignin makes it a potential substitute for formaldehyde-based synthetic wood adhesives. In the present work, lignin isolated from Hevea brasiliensis was treated with laccase enzyme to obtain active lignin. The activated lignin (NaOH treated) was further formulated with natura...

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Main Authors: Jayshree, Thuraisingam, Mishra, Puranjan, Gupta, Arun, Soubam, Triveni, Mohd Bijarimi, Mat Piah
Format: Article
Language:English
Published: Springer 2019
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/30655/
http://umpir.ump.edu.my/id/eprint/30655/1/Novel%20natural%20rubber%20latex1.pdf
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author Jayshree, Thuraisingam
Mishra, Puranjan
Gupta, Arun
Soubam, Triveni
Mohd Bijarimi, Mat Piah
author_facet Jayshree, Thuraisingam
Mishra, Puranjan
Gupta, Arun
Soubam, Triveni
Mohd Bijarimi, Mat Piah
author_sort Jayshree, Thuraisingam
building UMP Institutional Repository
collection Online Access
description The phenolic content in lignin makes it a potential substitute for formaldehyde-based synthetic wood adhesives. In the present work, lignin isolated from Hevea brasiliensis was treated with laccase enzyme to obtain active lignin. The activated lignin (NaOH treated) was further formulated with natural rubber latex (NR-latex) to prepare bio-adhesive. Complementary analysis such as modulus of rupture (MoR), modules of elasticity (MoE), internal bonding (IB), Fourier transform infrared (FTIR) spectroscopy, thickness swelling (TS), and scanning electron microscopy (SEM) were applied to characterize a medium density fibre-board (MDF) prepared based on bio-adhesive formulation. It was found that bio-adhesive formulation of 10 g NR-latex with 10 g of lignin has the highest MoR of 16 MPa, while the formulation of 15 g NR-latex with 5 g lignin showed the highest MoE of 15 MPa. The TS result showed that there is a weight gain on MDFs with a lower proportion of NR-latex content which consequently increases the density of the composites. The FTIR analysis of formulated bio-adhesive revealed the significant difference in chemical composition with different proportions of lignin and NR-latex in bio-adhesive. Finally, SEM examination of the interfaces of formulated bio-adhesive and wood fibre material showed the better dispersion with no adhesive lumps.
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spelling ump-306552021-02-09T02:29:48Z http://umpir.ump.edu.my/id/eprint/30655/ Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board Jayshree, Thuraisingam Mishra, Puranjan Gupta, Arun Soubam, Triveni Mohd Bijarimi, Mat Piah TP Chemical technology The phenolic content in lignin makes it a potential substitute for formaldehyde-based synthetic wood adhesives. In the present work, lignin isolated from Hevea brasiliensis was treated with laccase enzyme to obtain active lignin. The activated lignin (NaOH treated) was further formulated with natural rubber latex (NR-latex) to prepare bio-adhesive. Complementary analysis such as modulus of rupture (MoR), modules of elasticity (MoE), internal bonding (IB), Fourier transform infrared (FTIR) spectroscopy, thickness swelling (TS), and scanning electron microscopy (SEM) were applied to characterize a medium density fibre-board (MDF) prepared based on bio-adhesive formulation. It was found that bio-adhesive formulation of 10 g NR-latex with 10 g of lignin has the highest MoR of 16 MPa, while the formulation of 15 g NR-latex with 5 g lignin showed the highest MoE of 15 MPa. The TS result showed that there is a weight gain on MDFs with a lower proportion of NR-latex content which consequently increases the density of the composites. The FTIR analysis of formulated bio-adhesive revealed the significant difference in chemical composition with different proportions of lignin and NR-latex in bio-adhesive. Finally, SEM examination of the interfaces of formulated bio-adhesive and wood fibre material showed the better dispersion with no adhesive lumps. Springer 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/30655/1/Novel%20natural%20rubber%20latex1.pdf Jayshree, Thuraisingam and Mishra, Puranjan and Gupta, Arun and Soubam, Triveni and Mohd Bijarimi, Mat Piah (2019) Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board. Iranian Polymer Journal volume, 28. pp. 283-290. ISSN 1735-5265. (Published) https://doi.org/10.1007/s13726-019-00696-5 https://doi.org/10.1007/s13726-019-00696-5
spellingShingle TP Chemical technology
Jayshree, Thuraisingam
Mishra, Puranjan
Gupta, Arun
Soubam, Triveni
Mohd Bijarimi, Mat Piah
Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
title Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
title_full Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
title_fullStr Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
title_full_unstemmed Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
title_short Novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
title_sort novel natural rubber latex/lignin-based bio-adhesive: synthesis and its application on medium density fiber-board
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/30655/
http://umpir.ump.edu.my/id/eprint/30655/
http://umpir.ump.edu.my/id/eprint/30655/
http://umpir.ump.edu.my/id/eprint/30655/1/Novel%20natural%20rubber%20latex1.pdf