4.7 Article

Thermal and acoustic properties of silane and hydrogen peroxide treated oil palm/bagasse fiber based biophenolic hybrid composites

Journal

POLYMER COMPOSITES
Volume 43, Issue 9, Pages 5954-5966

Publisher

WILEY
DOI: 10.1002/pc.26871

Keywords

acoustic properties; biophenolic resin; hybrid composites; oil palm EFB fibers; sorghum stalks bagasse fiber; thermal properties

Funding

  1. King Saud University [RSP-2021/241]
  2. Universiti Putra Malaysia [9668300]

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This paper discusses the effects of thermal treatment and acoustic behavior on phenolic composites reinforced with oil palm EFB and sorghum stalks bagasse fiber. The results show that hybrid composites treated with silane and H2O2 exhibit good thermal and sound insulation performance.
The consequence of 2% v/v silane-treated and 4% v/v H2O2-treated upon thermal and acoustic behavior of hybrid oil palm EFB (OPEFB) and sorghum stalks bagasse fiber (SCB) reinforced phenolic composites for wall thermal insulation application is discussed in this paper. Hand lay-up approach was adopted to manufacture plain and hybrid composites with diverse formulation ratios such as 70:30 (7OPEFB:3SCB), 50:50 (5OPEFB:5SCB), and 30:70 (3OPEFB:7SCB). The experimental samples were manufactured with a purpose density of 0.5 g/cm(3). Plain and hybrid composites were investigated for thermal analysis and thermal conductivity testing. Impedance tubes were used for acoustic behavior analysis of composites. Hybridization of H2O2 treated HT 50:50 (5OPEFB:5SCB) showed greater thermal cohesion with a final residual of 58.69%, followed by hybridization of silane-treated ST 50:50 (5OPEFB:5SCB) with a residual of 45.10%. This study looks at four distinct air gap thicknesses (0 mm, 10 mm, 20 mm, and 30 mm). The results reveal that silane-treated ST 50:50 (5OPEFB:5SCB) hybrid composites and H2O2-treated HT 50:50 (5OPEFB:5SCB) hybrid composites improved sound absorption coefficients more than 0.50. Thus, we concluded that thermal and sound absorption performances of hybrid composites from agro waste promise an environmentally friendly alternative solution in wall building material production.

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