Physical and Mechanical Properties of Wood Plastic Composites from Teak Wood Sawdust and High Density Polyethylene (HDPE)

Abstract

Sawdust is a waste from furnitureindustry which is mostly left in the garbage or burn for landfill in hugequantities every year. Efforts to find utilization of this material haveresulted mostly in low value. However, sawdust waste can be considered as analternative to fabricate fiber reinforced polymer composites for furniturefunction. This study was undertaken to determine the physical and mechanicalproperties of wood plastic composites, which were made under laboratoryconditions by hot pressing of high-density polyethylene (HDPE) with teakwoodsawdust as filler. Seven levels of mixed flour, 10, 20, 30, 40, 50, 60 and 70%,based on the composition by weight was added to the HDPE powder with palm oilas coupling agent. A flat pressing technology, the simplest method for capableof large dimension wood plastic panel production, was used to manufacturetesting specimens in dimensions 5.8 x 7.3 cm2. Investigation of themechanical property of the composites material, according to the Americansociety for testing and materials (ASTM) method, was done by impact strengthtester. The measurement results were found that impact strength was decreased uponthe increasing of the sawdust up to 30 % mixing then gradually increased. However,by increasing mixed flour content, water resistance of the panels wasnegatively influenced. The best appearance of composites material in comparisonwith the natural woods was ~30% sawdust powder mixing. The woodplastic panels were utilized for construction of a Thai spirithouse as an outdoor decoration.

Rheological properties of teak wood flour reinforced HDPE and maize starch composites

“…These results are marginally better than the results reported in literature. In one case, the water absorption (%) in different wood composites having 10/90, 20/80 and 30/70 WF/HDPE ratio was found to be 1.24%, 2.77%, 3.82% and 4.50% respectively 53 . The HDPE absorbs low amount of water molecules due to its hydrophobic nature.…”

“…In one case, the water absorption (%) in different wood composites having 10/90, 20/80 and 30/70 WF/HDPE ratio was found to be 1.24%, 2.77%, 3.82% and 4.50% respectively. 53 The HDPE absorbs low amount of water molecules due to its hydrophobic nature. Absorption (%) starts increasing from T 1 composites and increased from T 2 to T 4 composites.…”

Pengaruh variasi jenis plastik terhadap sifat fisik dan mekanik Wood plastic composite (WPC)

“…Duangkhae bootkul dkk dalam pelitiannya komposit papan datar diolah dari campuran serbuk gergaji kayu jati dan polietilen densitas tinggi (HPDE). Ada beberapa variasi tepung antara lain, 10, 20, 30, 40, 50, 60, dan 70%, berdasarkan komposisi berat yang di campur dengan HDPE dan minyak kelapa sawit sebagai pengikatnya (Bootkul, Butkul, & Intarasiri, 2017).…”

Pengembangan Wood Plastic Composite (WPC) Melalui Pemanfaatan Limbah Plastik dan Serbuk Gergaji Kayu

“…Studi tentang karakteristik WPC telah banyak dilakukan. WPC dikembangkan menggunakan berbagai jenis pasangan plastik-kayu, diantaranya; Kayu sengon-polyester (Rahman, Sudarisman, & Nugroho, 2018) kayu kelapa-resin epoksi (Poyoh, Rauf, & Lumintang, 2013) (Puja, 2010), kayu kamper-LDPE (Nurwendi et al, 2016), kayu jati-HDPE (Bootkul, Butkul, & Intarasiri, 2017) pinus-PP (Gurau & Ayrilmis, 2018), serat kulit durian (durian husk fibre)polystyrene (Chu et al, 2018), daun dan tangkai cabai-PP (Valles-Rosales, Rodríguez-Picón, Méndez-González, del Valle-Carrasco, & Alodan, 2016), serat serabut kelapa-PVC (Rimdusit, Damrongsakkul, Wongmanit, Saramas, & Tiptipakorn, 2011), limbah bongkaran konstruksi, CDW-HDPE (Hyvärinen, Ronkanen, & Kärki, 2019). Mahoni-resin polyester (Gapsari & Setyarini, 2010), mahoni-PP (Vedat, 2020).…”

“…Adakalanya penambahan limbah serbuk gergaji pada plastik tidak secara spesifik menyebutkan jenis kayunya (Sudirman, Aloma, K.K., Ari Handayani, & Hertinvyana, 2002). Penambahan serbuk kayu pada plastik dapat meningkatkan sifat mekanis seperti kekuatan impact (Bootkul et al, 2017) Dua faktor penting penentu sifat fisik dan sifat mekanik WPC yaitu faktor material penyusun dan faktor proses. Faktor material penyusun diantaranya; jenis serbuk kayu, ukuran mesh, jenis plastik, penambahan serat penguat dan coupling agent.…”