Some technological properties of poplar plywood panels reinforced with glass fiber fabric

Published Date
30 December 2015, Vol.101:952–957, doi:10.1016/j.conbuildmat.2015.10.152

Author 

Bekir Cihad Bal ^a,,

İbrahim Bektaş ^a

Fatih Mengeloğlu ^a

Kadir Karakuş ^a

H. Ökkeş Demir ^b

aKahramanmaraş Sütçü İmam University, Department of Forest Industry Engineering, Faculty of Forestry, 46100 Kahramanmaraş, Turkey

bKahramanmaraş Sütçü İmam University, Department of Chemistry, Faculty of Science and Letter, 46100 Kahramanmaraş, Turkey

Received 25 May 2015. Revised 5 October 2015. Accepted 22 October 2015. Available online 10 November 2015.

Highlights

• Modulus of elasticity of reinforced plywood increased significantly.
• •
  Reinforcement decreased the inequality between parallel and perpendicular samples.
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  Compared to control samples, moisture content decreased, and density increased.
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  Thickness swelling and water absorption decreased for the test groups.

Abstract

The reinforcement of solid wood and wood-based composite materials is not a new idea, but there have been very few studies about reinforcing poplar plywood with glass fiber fabric using phenol formaldehyde. In this study, plywood panels were produced using poplar veneer and phenol formaldehyde adhesive and glass fiber fabric. One control group and three different test groups were set up. In addition, perpendicular and parallel test samples for each group were set up for bending tests. Some of the physical and mechanical properties of the reinforced plywood were determined using various tests. The results of the testing indicated that the plywood that was reinforced with woven glass fiber had a significantly increased modulus of rapture and modulus of elasticity of perpendicular samples. It was determined that density of the plywood was increased in the test groups. Thickness swelling and water absorption decreased for the test groups in which the plywood samples had woven glass fibers bonded onto in their surfaces. In the bending tests, the reinforcement provided by the glass fiber fabric decreased the inequalities between the parallel and perpendicular samples.

Keywords

Plywood

Reinforcement

Glass fiber fabric

Physical properties

Mechanical properties

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  Corresponding author.

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