Effect of low-cost mussel-inspired poly(catechol/polyamine) modification of waste brick powder followed by grafting of epoxy elastomers on natural rubber composites

IF 2.2 4区化学 Q3 CHEMISTRY, PHYSICAL

Colloid and Polymer Science Pub Date : 2024-02-05 DOI:10.1007/s00396-024-05225-2

Meng Zhao, Hao Duan, Su Zhang, Linfeng Han, Keyu Peng, Yuan Jing, Guangyi Lin

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Abstract

The aim of this study is to explore a method for modifying waste brick powder (WBP) in order to reapply it to rubber products for effective resource recycling. Firstly, we use the auto polymerization of catechol/polyamine (CPA) on the surface of WBP to form a poly catechol/polyamine (PCPA) coating as an intermediate reaction platform. And then the macromolecular modifier, epoxy-functionalized elastomer (ethylene vinyl acetate-glycidyl methacrylate terpolymer) (EVMG), is further grafted onto the PCPA coating to prepare the WBP@EVMG hybrid materials. During the preparation of the WBP@EVMG hybrid materials, a ring-opening reaction between the amine group of PCPA and the epoxy group of EVMG occurs. The NR/WBP@EVMG composites are prepared by mechanical blending. The interfacial interactions between WBP@EVMG and NR are analyzed and verified in detail by dynamic mechanical analysis (DMA) and rubber process analyzer (RPA). It is shown that the modified NR/WBP composites show increased vulcanization rate and better mechanical properties, and the tensile strength, abrasion resistance, cracking strength, and wet slip resistance of NR/WBP@EVMG-15 are increased by 29%, 6%, 16%, and 11%, respectively, compared with that of NR/WBP composites, which provides a unique idea for the reuse of waste brick powder in rubber.

Graphical abstract

Abstract Image

查看原文本刊更多论文

低成本贻贝启发的聚（邻苯二酚/聚胺）改性废砖粉后接枝环氧弹性体对天然橡胶复合材料的影响

本研究旨在探索一种改性废砖粉（WBP）的方法，以便将其重新应用于橡胶制品，实现有效的资源循环利用。首先，我们利用邻苯二酚/聚胺（CPA）在 WBP 表面的自聚合反应形成聚邻苯二酚/聚胺（PCPA）涂层作为中间反应平台。然后将大分子改性剂环氧官能化弹性体（乙烯-醋酸乙烯-甲基丙烯酸缩水甘油酯三元共聚物）（EVMG）进一步接枝到 PCPA 涂层上，制备出 WBP@EVMG 混合材料。在制备 WBP@EVMG 混合材料的过程中，PCPA 的胺基和 EVMG 的环氧基会发生开环反应。通过机械混合制备出 NR/WBP@EVMG 复合材料。通过动态机械分析（DMA）和橡胶过程分析仪（RPA）对 WBP@EVMG 和 NR 之间的界面相互作用进行了详细分析和验证。结果表明，改性后的 NR/WBP 复合材料硫化率提高，力学性能更好，与 NR/WBP 复合材料相比，NR/WBP@EVMG-15 的拉伸强度、耐磨性、开裂强度和湿滑性分别提高了 29%、6%、16% 和 11%，为废砖粉在橡胶中的再利用提供了一种独特的思路。

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.