Primary Study on Functional Desulfurized Gypsum Fiberboard
Traditionally, the gypsum fiberboard was produced with constructional gypsum. However, no researches which produce gypsum fiberboard with desulfurized gypsum were found. In this paper, the functional gypsum fiberboard is produced with desulfurized gypsum and fiber materials. The new type of gypsum fiberboard was produced through semi-dry process. The experimental setup was designed according to orthogonal test. Water/gypsum ratio, wood fiber/gypsum ratio and the type of modifier were taken into consideration as the factors that influence the properties of desulfurized gypsum fiberboard. MOR (Modulus Of Rupture ), IB (Internal Bonding strength) and TS (Thickness Swell) of the fiberboard were tested in the study. The experimental result showed that physical and mechanical properties turned out to be the best when the water/gypsum ratio was 0.55, wood fiber/gypsum ratio was 15/85 and the modifier was sodium citrate.
Desulfurized gypsum fiberboard MOR IB TS
Yanlong Liu Zhaofa Tang Huinan Liu Mingli Liu
Wood Material Science and Engineering Key Laboratory of Jilin Province Beihua University Jilin, China
国际会议
吉林
英文
746-748
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）