Plywood made from plasma-treated veneers: melamine uptake, dimensional stability, and mechanical properties

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Mechanical properties of plywood made of thermally modified beech veneers impregnated with 25% melamine solution (± = standard deviation)

Sample	Direction	Compressive strength (N mm⁻²)	Tensile strength		Bending strength
Sample	Direction	Compressive strength (N mm⁻²)	σM^a (N mm⁻²)	MOE (kN mm⁻²)	MOR (N mm⁻²)	MOE (kN mm⁻²)
Reference⁰	Parallel	38 ± 2	69 ± 9	8.8 ± 0.9	126 ± 10	12.9 ± 1.1
Reference⁰	Perpendicular	55 ± 2	88 ± 11	13.2 ± 1.3	54 ± 4	3.8 ± 0.2
Reference	Parallel	36 ± 2	60 ± 6	7.7 ± 0.7	124 ± 11	14.7 ± 1.5
Reference	Perpendicular	52 ± 5	83 ± 8	11 ± 1	60 ± 3	4.5 ± 0.2
Plasma	Parallel	40 ± 3	52 ± 5	6.9 ± 0.5	116 ± 5	13.4 ± 0.7
Plasma	Perpendicular	52 ± 3	82 ± 8	11 ± 0.9	57 ± 3	4.4 ± 0.2