As the rubber industry turns its focus to sustainability, recovered carbon black (rCB) has emerged as a commercial candidate to replace conventional fossil-based fillers. Since rCB is a new class of rubber filler, much is still to be understood regarding which of its properties influence final applications performance. The research presented in this paper demonstrates the importance of controlling the aggregate size distribution, silica content, carbonaceous residue content, and organic residue content in producing a consistent rCB product. These parameters are also demonstrated to be the fundamental reasons behind the disparity in performance of rCB and carbon black of similar colloidal properties. The findings of this study also reveal that the properties of an rCB can be tailored for a given application with precise control of the process conditions.

随着橡胶行业将重点转向可持续发展，回收炭黑 (rCB) 已成为替代传统化石填料的商业候选者。由于 rCB 是一种新型橡胶填料，因此其哪些特性会影响最终应用性能仍有待了解。本文提出的研究证明了控制骨料尺寸分布、二氧化硅含量、含碳残留物含量和有机残留物含量对于生产一致的 rCB 产品的重要性。这些参数也被证明是胶体性质相似的 rCB 和炭黑性能差异背后的根本原因。