Vu Viet-Anh, Cloutier Alain, Bissonnette Benoît, Blanchet Pierre, Dagenais Christian
Department of Wood and Forest Sciences, Université Laval, Quebec, QC G1V 0A6, Canada.
Department of Civil and Water Engineering, Université Laval, Quebec, QC G1V 0A6, Canada.
Materials (Basel). 2020 Oct 29;13(21):4813. doi: 10.3390/ma13214813.
The objective of this study was to develop a new drywall wood-based particleboard as an alternative to gypsum board. Various development iterations have led to the use of wood particles, steatite powder and Portland cement. The resulting outcome shows that screw withdrawal resistance was improved by 37% and bending properties by 69% compared to gypsum board of a similar density (0.68-0.70). The raw surface of the boards is of good quality and comparable to the paper-faced surface of gypsum board. Furthermore, the reaction to fire was evaluated through bench-scale test with a cone calorimeter. The investigated particleboard did not reveal visual signs of combustion after 20 min when exposed to a radiant heat of 50 kW/m, while burning of the overlay paper of gypsum board occurred at about 57 s, suggesting that wood-cement-steatite powder particleboard could be classified as a quasi non-combustible material.
本研究的目的是开发一种新型干墙木质刨花板，以替代石膏板。经过多次研发迭代，采用了木颗粒、滑石粉和波特兰水泥。结果表明，与密度相似（0.68 - 0.70）的石膏板相比，该刨花板的螺丝抗拔力提高了37%，弯曲性能提高了69%。板材的原始表面质量良好，可与石膏板的纸面表面相媲美。此外，通过锥形量热仪进行的小型试验评估了其防火性能。当暴露在50 kW/m的辐射热下20分钟后，所研究的刨花板未出现燃烧的明显迹象，而石膏板的贴面纸在约57秒时就发生了燃烧，这表明木 - 水泥 - 滑石粉刨花板可归类为准不燃材料。
