TY - EJOU AU - Ju, Zehui AU - He, Qian AU - Zhan, Tianyi AU - Zhang, Haiyang AU - Sun, Lin AU - Hong, Lu AU - Shi, Xinyi AU - Lu, Xiaoning TI - Steam Exploded Peanut Shell Fiber as the Filler in the Rigid Polyurethane Foams T2 - Journal of Renewable Materials PY - 2019 VL - 7 IS - 11 SN - 2164-6341 AB - In this study, steam exploded peanut shell fibers (SE-PSFs) were utilized to fabricate with rigid polyurethane foam (RPUF) in order to improve sound absorption performance and hydrothermal weather resistance. Optimized method of SE treatment, RPUF preparation and flame retardant treatment were selected to prepare SE-PSF/RPUF composites in this experiment. Physical and mechanical properties including density, water absorption capacity, thickness swelling rate, compressive strength, thermal conductivity and average sound absorption coefficient of SE-PSF/RPUF were investigated and compared with the control (PRUF). The results showed that the density, water absorption capacity, thickness swelling rate and thermal conductivity showed an increasing trend with the increase of SE-PSFs content. The strength of the composite material showed a downward trend with the increase of the SE-PSFs content. The average sound absorption coefficient of the SE-PSFs/RPUF compared with PRUF significant increased, and the average sound absorption coefficient of the SE-PSFs/RPUF with SE-PSFs 40% was 0.47. The study getted the best ratio of flame retardants for 10% EG and 3% DMMP. The oxygen index was 35.56 vol%. KW - Steam explosion; peanut shell fiber; polyurethane; composite; flame retardant properties DO - 10.32604/jrm.2019.07525