.png){kind=icon}
.png){kind=icon}
Return
Enhancement of Natural Rubber's Mechanical Properties and Aging Resistance via Host–Guest Cooperative Modification of Quartz Silica Powder Using Tea Polyphenols/Dilauryl Thiodipropionate
.png){kind=icon}
PRE
AI
H
Z
L
Y
G
DOI：10.1002/pen.70722.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This study aims to valorize quartz silica powder (QSP)—a byproduct of quartz stone waste—as a functional filler in natural rubber (NR) through an innovative host–guest synergistic modification strategy. We developed a surface engineering approach to markedly enhance the interfacial compatibility and dispersion of QSP within the rubber matrix. Initially, tea polyphenols (TP) were grafted onto QSP surfaces using γ-aminopropyltriethoxysilane (KH550) as a molecular bridge via Michael addition. This modification not only strengthened the QSP–NR interface but also enabled TP to scavenge free radicals during thermal aging, thereby improving antiaging performance. Furthermore, dilauryl thiodipropionate (DLTDP) was incorporated through an ester exchange reaction, contributing to peroxy radical decomposition and long-term stability. The resulting composites exhibited remarkable performance enhancements: tensile strength, tear strength, and abrasion resistance increased by approximately 9%, 14%, and 7%, respectively. After 9 days of thermal oxidative aging, retention rates of tensile strength and elongation at break rose dramatically by about 166% and 110%. This work successfully transforms quartz stone waste into a high-value, multifunctional rubber filler, offering a sustainable pathway toward resource circularity and advanced material design.
Keywords:
aging resistance
interfacial bonding
natural rubber
quartz silica powder
tea polyphenols
Journal
P
IF:
0
Papers:
256
Citations:
0
Organization
Cited Papers