Experimental Study on Combustion Properties and Thermo-Gravimetric Analyses of Oriented Strand Board (OSB)

Fatih Yapici

doi:10.5552/drvind.2020.1909

Abstract

This study investigates the effects of types of adhesives on the combustion properties of oriented strand board panels (OSB). Combustion test was performed according to ASTM E69 standard. Mass reduction, change of temperature and released gas (CO, NO, O2) were measured every 30 seconds during this test. Thermogravimetric analysis (TGA) of the OSBs was also carried out. While the highest temperature value of combustion was only obtained for the samples with phenol-formaldehyde at both outer and inner layer of test panels, the lowest temperature value was obtained for test samples with phenol-formaldehyde on the outer layer and isocyanate on the atinner layer. In the results of TGA, test mass reduction of OSBs was similar to each other, and most of the mass loss occurred at the temperatures between 200 and 400 °C.

Highlights

IntroductionWood is a very good material – it is easy to shape, it has good physical and mechanical properties, aesthetics, and it is environmentally friendly
This study investigates the effects of types of adhesives on the combustion properties of oriented strand board panels (OSB)
It can be seen that the changes in temperature and emerging gases, such as CO, NO, O2 obtained as a result of combustion tests, did not show normal distribution according to the Shapiro-Wilk

Summary

Introduction

Wood is a very good material – it is easy to shape, it has good physical and mechanical properties, aesthetics, and it is environmentally friendly. In many countries, it is widely used as a building material, and in some areas as main construction and decoration material (Bednarek and Kaliszuk, 2007). Oriented strand boards (OSB) are engineered materials, which were designed for replacing plywood or solid wood in structural components. These boards must have sufficient mechanical properties. The use of the wood-based composite such as OSB has been increased since it is widely used as the I-joints (White and Winandy, 2006)

Methods

Results

Conclusion