心層材科暨板厚對層積複合板耐火性能之影響

Effect of core materials and board thickness on the fire resistance of laminated composites

林曉洪(Sheau-Horng Lin) ； 王秀華(Hsiu-Hwa Wang)

《林產工業》 20卷1期 (2001/03) Pp. 45-54

https://doi.org/10.6561/FPI.2000.20(1).6

摘要

本研究以九種基材包含三類木質材料（合板、亞麻粒片板、耐燃粒片板）及六種無機質材料（玻璃纖維棉、陶瓷纖維棉、岩棉、玻纖軋針棉、氧化鎂板及玻璃纖維板）為試驗基材，依CNS 6532規定進行各試驗基材之耐燃性分析後，製造層積複合板。複合板試體厚度設計為27~50mm（D）及固定50mm（M）者兩種計46種組合方式，再依CNS 11227“建築用防火門之耐火試驗法”加熱時間溫度曲線進行加熱，探討其耐火時間及試體背溫，並觀察加熱過程試體燃燒現象。木質材料基材均無法通過耐燃3級之規定，而其他無機質材料均可通過耐燃1級之標準。各基材背溫達260℃所需時間以亞麻粒片板（FP_(36)及FP_(45)）及三種耐燃粒片板（FRP_(12_、FRP_(18)及FRP_(36)）比玻璃織維板（Gb）、兩種氧化鎮板（Mg_3及Mg_4）達標準溫度260℃所需時間長。6mm合板則於加熱過程完全燒盡。複合板耐火時間隨厚度增加而增加;當各層材料之配置確定後，心層材料之耐火性能以玻漓纖維板、陶瓷纖維棉及玻纖軋針棉最佳。

關鍵字

層積複合板 ； 木質材料 ； 無機質材料 ； 耐火性能

並列摘要

Fire retardancy of nine base materials including three lignocellulosics (plywood, flax particleboard and fire-retardant particleboard) and six in organics (glass fiber, ceramic fiber, rock fiber, glass fiber carpet, magnesium oxide board and glass 'fiber board) were examined by using CNS 6532 standard method to determine the basic fire performance of each raw material. Laminated composites of different thickness from 27 to 50mm for the 0 group and 50 mm for the M group were then made from the aforementioned base materials in 46 types of combination. The standard method depicted in CNS 11227 as ＂Method of fire resistance test for fire door of buildings＂ was used to heat the specimens. Fire resistance and unexposed temperature of all tested boards were examined while observing the combustion of the various laminated composites. The study showed that all lignocellulosic base materials of six thickness failed to pass the third grade fire retardancy test while all inorganic base materials met the requirement of the first grade standard. Flax particleboard of 36 mm and45 mm thickness, and three fire-retardant particleboards of 12,18 and 36 mm thickness took longer time to reach the critical 260℃ backboard temperature, than those of the glass fiber board and magnesium oxide boards ( 3 and4 mm thick ). The6 mm-thick plywood base materials were completely burnt down during the heating process. Fire enduring time of the composites increased with the thickness of the boards. The core of the composites showed the best fire resistance when glass fiber board, ceramic fiber and glass fiber carpet were incorporated into the designated combination of the composites.

並列關鍵字

Laminated composite boards ； Wood-based materials ； Inorganic materials ； Fire resistance