高性能阻燃合板製造及其膠合品質與熱釋放性質

Manufacturing of High Performance Fire-retardant Plywood and Bonding Quality and Heat Released Properties

林曉洪(Sheau-Horng Lin) ； 范姜士勳(Shih-Hsuh Fanchiang)

《中華林學季刊》 45卷2期 (2012/06) Pp. 251-269

https://doi.org/10.30064/QJCF.201206.0008

摘要

本研究之目的為探討面、底板為紅柳桉及中板為放射松材料，研製四種不同厚度（5,9,12及18 mm）之阻燃合板。各單板首先以阻燃劑A（奈米液態陶瓷阻燃劑）含浸處理後，MUF膠合劑中再混合阻燃劑B（高濃度熱固型膠料阻燃劑），以研製阻燃合板。成板分別進行膠合剪力（Type Ⅱ）、吸濕性、含水率及密度檢定後，次以CNS 14705“建築材料燃燒熱釋放率試驗法－圓錐量熱儀法”，使用Cone Ⅱ圓錐量熱儀，於熱通量50 kW/m2下進行燃燒試驗。四種厚度阻燃合板均可通過CNS 1349規定之TypeⅡ級合板，且阻燃合板膠合剪力僅較對照組者低3.0 %～4.1 %。四種厚度阻燃合板之含水率及吸濕性檢定後分別可通過CNS 11668及CNS 11669合格標準。又，四種厚度阻燃合板分別可通過CNS 14705耐燃3級（5 mm及 9 mm）與耐燃2級（12 mm及18 mm），且處理合板之各項燃燒性能比對照組顯著改善，其減低率分別為180 sec熱釋放率（HRR180）95.5%～97.3 %；總熱釋放量（THR）94.9%～96.9 %；有效燃燒熱（HOC）96.4%～97.7 %及平均質量損失率（MLR）21.6 %～52.9 %。顯見，本研究各處理合板之阻燃效應已獲得大幅改善。

關鍵字

膠合剪力強度 ； 圓錐量熱儀 ； 阻燃合板 ； 熱釋放率 ； 總熱釋放量

並列摘要

The purpose of this study was to explore four thickness (5, 9, 12, and 18 mm) fire-retardant plywood. Firstly, surface and bottom layer using red lauan and middle layer using radiata pine as raw material impregnated fire-retardant A, and then MUF resin mixed fire-retardant B to manufacture the fire-retardant plywood. Several physical characteristics (bonding shear strength (Type II), hygroscopicity, moisture content, and density) and heat releasing properties of fire-retardant plywood were examined. According to CNS 14705 ”Method of test for heat release rate for building materials - Cone calorimeter method” using Cone II colorimeter heated at 50 kW/m^2 combustion test. The four thickness of fire-retardant plywoods can meet the CNS 1349 of Type II and the bonding shear strength of fire-retardant plywood than control group were only reduced 3.0 %~4.1 %. Also, four thickness fire-retardant plywoods moisture content and hygroscopicity were met CNS 11668 and 11669, respectively. Four thickness fire-retardant plywoods met CNS 14705 fire retardant grade 3 (5 and 9 mm), and grade 2 (12 and 18 mm), respectively. Meanwhile, when compared with the control group reduce the heat release rate(HRR180)were 95.5 %~97.3 %, total heat released(THR)94.9 %~96.9 %,effective heat of combustion(HOC)96.4 %~97.7 %, and average mass loss rate(MLR) 21.6 %~52.9 %, respectively. Obviously, the efficiency of fire-retardant of treated plywoods improved significantly.

並列關鍵字

Bonding shear strength ； Cone calorimeter ； Fire-retardant plywood ； Heat release rate ； Total heat released