Open Access

ARTICLE

Steam Exploded Peanut Shell Fiber as the Filler in the Rigid Polyurethane Foams

Zehui Ju¹, Qian He¹, Tianyi Zhan¹, Haiyang Zhang^1,*, Lin Sun¹, Lu Hong¹, Xinyi Shi², Xiaoning Lu^1,*

1 College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China.
2 College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China.

* Corresponding Authors: Xiaoning Lu. Email:; Haiyang Zhang. Email: .

Journal of Renewable Materials 2019, 7(11), 1077-1091. https://doi.org/10.32604/jrm.2019.07525

Issue published 14 July 2021

Abstract

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%.

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