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Effects of Black Liquor-Montmorillonite Complexes on the Mechanical and Thermal Properties of Epichlorohydrin Rubber

Published online by Cambridge University Press:  01 January 2024

Zhipeng Yu ,
Yating Tan ,
Qionglin Luo ,
Xi Wang  and
Shengpei Su
Zhipeng Yu
Affiliation:
Hunan First Normal University, Changsha 410081 Hunan, China
Yating Tan
Affiliation:
Key Lab of Sustainable Resources Processing and Advanced Materials of Hunan Province, Hunan Normal University, Changsha 410081 Hunan, China
Qionglin Luo
Affiliation:
Key Lab of Sustainable Resources Processing and Advanced Materials of Hunan Province, Hunan Normal University, Changsha 410081 Hunan, China
Xi Wang
Affiliation:
Key Lab of Sustainable Resources Processing and Advanced Materials of Hunan Province, Hunan Normal University, Changsha 410081 Hunan, China
Shengpei Su*
Affiliation:
Key Lab of Sustainable Resources Processing and Advanced Materials of Hunan Province, Hunan Normal University, Changsha 410081 Hunan, China
*
*E-mail address of corresponding author: sushengpei@yahoo.com
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Abstract

The aim of the present study was to examine effects of black liquor-montmorillonite (BL-Mnt) complexes on the mechanical and thermal properties of epichlorohydrin rubber. Considering the stability effect of lignin and the barrier property of clay minerals, a significant enhancement of thermo-oxidative aging properties of ECO/BL-Mnt composites was expected. Poly (epichlorohydrin-co-ethylene oxide) (ECO) composites filled with BL-Mnt complex were prepared by mechanical mixing on a two-roll mill. The ECO/BL-Mnt composites were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Both XRD and TEM data showed that the filler particles were well dispersed throughout the ECO/BL-Mnt composites. The tensile strength, elongation at break, and 100% modulus of the rubber composite were 14.0 MPa, 457%, and 3.9 MPa, respectively, at a 50% loading of BL-Mnt. The retention of tensile strength was 99% after thermal oxidative aging in an air-circulating oven for 72 h at 100°C. Evidence indicated that ECO/BL-Mnt composites with good mechanical properties and thermo-oxidative aging properties were obtained.

Keywords

Black LiquorECOMechanical PropertiesMontmorilloniteThermal Properties
Type
Article
Information
Clays and Clay Minerals , Volume 67 , Issue 4 , August 2019 , pp. 334 - 339
Copyright
Copyright © Clay Minerals Society 2019

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Footnotes

This paper was originally presented during the World Forum on Industrial Minerals, held in Qing Yang, China, October 2018

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