Research on the cotton stalk fiber reinforced gypsum composite material
LI Yangtao
MA Yuwei
LI Gang
LAN Mingju
XING Haifeng
YANG Wen
DENG Zhizhong
ZHANG Weijie
WEI Yunfei
Abstract：Cotton stalk fiber was added into the FGD gypsum to prepare composite material. The effects of cotton stalk fiber addition method and dosage on the performance of FGD gypsum composites are studied. The results show that:when the dosage of cotton stalk fibers is 0.2%,the flexural strength and compressive strength of FGD gypsum are 4.42 MPa and 15.5 MPa respectively. When the cotton fiber immersed in 5% NaOH solution for 22 h is added,the flexural strength and compressive strength of FGD gypsum are 4.88 MPa and 17.9 MPa respectively,enhanced by 10.40% and 15.48% compared to the unmodified specimen;the thermal conductivity of FGD gypsum is 0.2119 W/(m·K),decreased by 9.79% compared with the one without fiber.
Keywords：FGD gypsumcotton stalk fiberalkali solution treatmentmechanical properties
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 20-22,63 )