Abstract:

Today, the decrease in forest resources and the intense pressure of the environment in this matter have led to new searches in the production of wooden leaves. At this point, various studies and research on the subject are being carried out. This research was planned in this context. In this study, the important mechanical characteristics of cotton distinction (Gossypium hirsitum L.) for general purposes in laboratory conditions and wooden yongs in varied proportions (%100,%75,%50,%25 and 0%) using urine formaldehyde bonds were studied in 650 kg/m3 density. At the same time, the results were compared with the subject-related standards. In the production of the leaves, 65% of the urine formaldehyde bond (UF) and 33% ammonium chloride (harder) were used. The average values calculated in mechanical characteristics in the trials were at 13.11-18.01 N/mm2, the elasticity module 2819-4620.8 N/mm2, the surface rectangular strength 984.6-1089.4 N, the surface rectangular resistance 0.55-0.97 N/mm2 and the junk hardness value 32.92-54.41 N. Statistical analyses (except 100% wooden yong) showed that the percentage of cotton deviation in the sheet decreased and the mechanical characteristics increased. It was also found that the swing resistance and swing elasticity module TS-EN 310, the rectangular drawing resistance to the TS EN 319 and the rectangular drawing resistance to the surface provided the minimum requirements required in BS 1811.

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