KUALITAS PAPAN KOMPOSIT DARI LIMBAH FINIR KAYU LAPIS BERDASARKAN UKURAN PARTIKEL DAN WAKTU PENGEMPAAN DENGAN MENGGUNAKAN PEREKAT LIMBAH PLASTIK POLIPROPILENA

Alfonsus Rodriquez,Ahmad Yani,Fathul Yusro

doi:10.26418/jhl.v7i2.34757

Abstract

This study aims to analyze the quality of composite boards from plywood veneers waste and polypropylene plastic waste adhesives base on particle sizes, pressing times, and both of interaction towards physical and mechanical properties also to obtain the particle sizes and pressing time properly with the result that produce the qualified standard boards of JIS A 5908-2003. This research carried out at the wood workshop, laboratory of technology and processing of woods (the faculty of forestry, university of Tanjungpura), and the laboratory of PT. Duta Pertiwi Nusantara. The materials used in this study were plywood veneers waste and polypropylene plastic by 50% : 50% comparison. The research method was utilized the completely randomized factorial design by two treatment factors. Factor A was particle sizes that consisting of 6 mesh, 8 mesh, and 10 mesh. Factor B was pressing time that consisting of 10 minutes, 15 minute, and 20 minutes. Composite boards were created by 30 x 30 x 1 size in centimetres by means the density target was 0,7 gr/cm3. The pressing was done by hot press in 180oC temperature and composite boards conditioning for 14 days. The results of this study showed that the density, water absorption, thickness, Modulus of Repture (MOR), internal bonding, holding strength of screws in the composite boards have been qualified the standard of JIS A 5908-2003. While, the water contents and Modulus of Elasticity (MOE) testing were not qualified the standard of JIS 5908-2003. The treatment that produce the optimum composite boards which quality JIS A 5908-2003 standard was on the 8 mesh particle size treatment by means of 15 minutes pressing time.Keywords: Composite Board, Particle Size, Polypropylene Plastics, Pressing Time, Veneers Waste.

Highlights

PENDAHULUAN Kayu merupakan kebutuhan pokok dalam pembuatan kontruksi bangunan yang dapat menyebabkan penggunaan kayu semakin meningkat, sedangkan pasokan kayu dari alam sangatlah terbatas dan juga tidak sesuai dengan kebutuhan yang diperlukan
This study aims to analyze the quality of composite boards from plywood veneers waste and polypropylene plastic waste adhesives base on particle sizes, pressing times, and both of interaction towards physical and mechanical properties to obtain the particle sizes and pressing time properly with the result that produce the qualified standard boards of JIS A 59082003
The materials used in this study were plywood veneers waste and polypropylene plastic by 50% : 50% comparison

Summary

15 Menit Waktu Kempa

Kadar air ±SD papan komposit berdasarkan ukuran partikel dan waktu kempa (Water content ±SD composite board based on particle size and press time). Berdasarkan diduga bahwa pada awal penyiapan hasil analisis keragaman diketahui bahan partikel mempunyai kadar air di bahwa perlakuan ukuran partikel dan bawah 5 % dan pada umumnya papan waktu kempa tidak berpengaruh komposit yang menggunakan bahan terhadap kadar air dari papan komposit. Nilai kadar air papan komposit dan pengunaan plastik sebagai perekat untuk setiap perlakuan berkisar antara (Massijaya et al 1999) sehingga. 5908 – 2003 tidak mensyaratkan daya memiliki penyerapan air yang lebih serap air, namun pengujian ini tetap rendah. Rendahnya kadar air pada papan dilakukan mempertimbangkan komposit tersebut disebabkan plastik ketahanan papan komposit terhadap polipropilena daur ulang yang digunakan penyerapan air sehingga dapat layak sebagai perekat bersifat hidrofobik, dipergunakan untuk interior dan sehingga papan komposit tidak mudah eksterior

Mesh Ukuran Partikel b

10 Menit ab 15 Menit b 20 Menit

Mesh b 8 Mesh