Lee So-Hyeon, Kim Jun-Hyun, Park Hyun-Ho
Department of Chemistry, Keimyung University Daegu 42601 South Korea
Department of Chemistry, Illinois State University Normal Illinois 61790-4160 USA
RSC Adv. 2022 Oct 26;12(47):30480-30486. doi: 10.1039/d2ra05299g. eCollection 2022 Oct 24.
This study reports the effects of recovered carbon black (produced in a clean and sustainable way) as a reinforcing agent on the physicochemical properties of a styrene-butadiene rubber (SBR) matrix. SBR-based composite materials are prepared with recovered green carbon black (GCB), and these are thoroughly compared to the composite materials containing conventional virgin carbon black (VCB) (produced by the incomplete combustion of petroleum products). The GCB-SBR composite materials generally show detectably inferior properties compared to the VCB-SBR composite under the same preparation conditions due to the limited functionality of the GCB filler. However, the introduction of a small amount of crosslinker, acrylate-functionalized POSS (polyhedral oligomeric silsesquioxane), into the GCB-SBR composite materials effectively enhances the overall physical properties, including the tensile strength, fracture elongation, and thermal stability. The degree of the crosslinking efficiency, thermal stability, and mechanical properties of the composite materials are optimized and thoroughly examined to demonstrate the possibility of replacing typical VCB with GCB, which can allow for upcycling the inexpensive and ecofriendly carbon black materials as effective reinforcing fillers.
本研究报告了以清洁且可持续方式生产的回收炭黑作为增强剂对丁苯橡胶（SBR）基体物理化学性能的影响。用回收的绿色炭黑（GCB）制备了基于SBR的复合材料，并将其与含有传统原始炭黑（VCB）（由石油产品不完全燃烧产生）的复合材料进行了全面比较。由于GCB填料的功能有限，在相同制备条件下，GCB-SBR复合材料的性能通常明显低于VCB-SBR复合材料。然而，向GCB-SBR复合材料中引入少量交联剂——丙烯酸酯官能化的POSS（多面体低聚倍半硅氧烷），有效地提高了包括拉伸强度、断裂伸长率和热稳定性在内的整体物理性能。对复合材料的交联效率、热稳定性和机械性能进行了优化和全面研究，以证明用GCB替代典型VCB的可能性，这可以将廉价且环保的炭黑材料作为有效的增强填料进行升级再造。
