PROCESSING OF SAWDOW WASTE OF MAHONI AND JATI WOOD AS A MATERIAL GYPSUM CEILING FILLERS WITH POLIVINYL ADHESIVE ALCOHOL

Liver Zai; Estetika Niat Iman Halawa; Malemta Tarigan; Erdiana Gultom; Vivi Purwandari; Ong Amanda Jiamin

doi:10.51544/kimia.v7i1.3986

Authors

Liver Zai Universitas Sari Mutiara indonesia
Estetika Niat Iman Halawa Universitas Sari Mutiara Indonesia
Malemta Tarigan Universitas Sari Mutiara Indonesia
Erdiana Gultom Universitas Sari Mutiara Indonesia
Vivi Purwandari Universitas Sari Mutiara Indonesia
Ong Amanda Jiamin Nanyang Technological University

DOI:

https://doi.org/10.51544/kimia.v7i1.3986

Keywords:

Ceiling, Gypsum, Mahoni and jati Wood Powder, PVA

Abstract

Along with the increase in population, the need for building materials, namely wood, will increase, thus triggering rampant illegal logging, which will cause floods, landslides, and global warming. One of the efforts made to reduce the use of wood is to make gypsum composite boards. This study aims to utilize mahogany wood waste and jati wood powder as gypsum board fillers. Research has been carried out on processing waste sawdust from mahogany and jati wood as a filling material for making gypsum ceilings with polyvinyl alcohol adhesive by mixing and compacting using a hot compressor at 70^o C. Good quality with a density value of 0.82 g /cm³ and absorption capacity of 38.4% complied with SNI 03-2105-2006. Mechanical properties with variations in impact strength (95:5:10) of 19.014 J/m², flexural strength of variation (95:5) of 395, 446 N/m², and fracture strength of variation (95:5:5) of 1.7758 N/m². A Gypsum board was obtained, which did not meet SNI 03-6384-2000 on the gypsum board specification for the results of testing for flexural strength and fracture strength.

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