水泥刨花板抗弯强度的研究

【摘要】 抗弯强度是水泥刨花板的主要力学性能指标。本文通过对水泥刨花板抗弯强度的研究表明，水泥刨花板的养护期以１４ｄ为佳；适宜的脱模抗弯强度为３．５～４．０ＭＰａ；灰木比、芯层刨花形态与掺量、成型压力与板材含水率对抗弯强度有显著的影响。在适宜的工艺参数下板材的抗弯强度达９～１１ＭＰａ。此外，经１０年长期强度表明，抗弯强度仍在持续增长，无后期使用之虞更多还原

【Abstract】 Bending strength is the main mechanical performance index for cemented chipboard. The article shows that from the research on the bending strength of cemented chipboard, its optimal curing duration is 14 days, the suitable demoulding bending strength is 3.5～4 MPa, the proportion between cement and wood, the chip feature of the core, added quantity, forming pressure and water content of the board have significant effects on bending strength. Under suitable process parameters, the bending strength can reach 9～11 MPa. In addition, a ten year long-term strength shows that the bending strength is still growing and there will be no worries about application at later stage.更多还原