00000caa a22000003i 4500 UP-1685594773862408729 Buklod 20210408193008.0 m | | ta 210408s2020 xx r |||| u|eng d (iLib)UPBAG-00039679891 STII-DOST BAG rda eng ARTICLE-3054 Jimenez Jr., Juanito P. author. Effect of particle size of tobacco stalk additive on the bond strength and formaldehyde emission of urea formaldehyde bonded plywood by Juanito P. Jimenez Jr., Menandro N. Acda, Ramon A. Razal, Willie P. Abasolo, Hidelisa P. Hernandez, and Arnold R. Elepaño. 2020. pages 359-368 color illustrations 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (pages 368-368) The study investigated the use of native type (Batek) tobacco (Nicotiana tabacum L.) stalk particles from two different mesh sizes ? passing 100 mesh but retained at 200 mesh coded as N-100m (74?149 µm) and passing 200 mesh coded as N-200m (< 74 µm) ? as additive with both extender and filler property, as well as formaldehyde scavenging property in urea-formaldehyde (UF) resins adhesive formulation used to bond veneers [Falcataria moluccana (Miq.) Barneby & J.W. Grimes] into plywood. The effect of tobacco stalk particle (TSP) size on adhesion performance, tensile shear strength (TSS), and wood failure (wF), as well as formaldehyde emission (FE) of three-ply plywood, was investigated and compared with traditional additives such as wheat flour (WF), coconut shell flour (CS), and rice hull flour (RH). The glue-mix containing UF resins with TSP at 8% by mass was blended very well. There is no difference in the TSS and wF of plywood bonded with N-200m TSP as additive compared to commercial UF formulations; however, a significant decrease of TSS and wF was observed with N-100m. The addition of N-200m significantly reduced FE by 23%, 33%, and 44% compared to those of WF-CS, WF-RH, and N-100m, respectively. (Author's abstract) Extender. Filler. Formaldehyde emission. Nicotiana tabacum L. Nicotine. Plywood. Tobacco. Acda, Menandro N. author. Razal, Ramon A. author. Abasolo, Willie P. author. Hernandez, Hidelisa P. author. Elepaño, Arnold R. author. The Philippine Journal of Science Vol. 149, no. 2, June 2020. Request full-text access via UPB University Library through https://forms.gle/KZjBv7aRtY6jiL5E9 (viewed 08 April 2021) FI UPBAG UPBAG-MAIN ARTICLE-3054 Analytics