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KCI등재 학술저널

요소수지의 F/U 몰비별로 제조된 목질패널의 포름알데히드 長基 放出 傾向

Long Term Formaldehyde Emission Trend of Wood Panels Manufactured by F/U Molar Ratios in Urea Resin Adhesive

This study was carried out to measure formaldehyde emission with the passing of two years from plywood, sliver-board and strand-board bonded with urea resins which were made of 6 F / U molar ratios. The urea resins were manufactured by six kinds of formaldehyde/urea molar ratio of 1.0, 1.2, 1.4, 1.6, 1.8 and 2.0. 1. The plywood with molar ratio of 1.0 satisfied the KS F3101 F₂ directly after manufacture. The plywood with molar ratio of 1.2 satisfied in 3 days. The plywood with molar ratio of 1.4 satisfied the F₃ in 3 days and the F₂ in 600 days. And the plywood with molar ratio of 1.8 and 2.0 satisfied the F₃ in 365 days, but didn t satisfy the F₂ in 730 days. 2. Sliver-board with molar ratio of 1.0 and 1.2 satisfied the KS F3104 E₂ right after manufacture. Sliver-board with molar ratio of 1.4 and 1.6 satisfied in 150 and 360 days, respectively. Sliverwith molar ratio of 1.8 and 2.0 satisfied in 730 days. 3. Strand-board with molar ratio of 1.0 and 1.2 satisfied the KS F3104 E₂ directly after manufacture. Strand-board with molar ratio of 1.4 and 1.6 satisfied in 150 days. But Strandwith molar ratio of 1.8 and 2.0 didn t satisfy in 730 days.

1.서론

2.재료 및 방법

3.결과 및 고찰

4.결론

참고문헌

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