废旧轮胎裂解炭黑的改性及其应用进展

Application progress of modified pyrolytic carbon black from waste tire

摘要:

废旧轮胎作为对环境有害的固体废弃物，其组成包括炭黑、白炭黑和胶粉等多种有价值的资源。在现有回收技术中，废轮胎热裂解技术可有效回收裂解油、炭黑和钢丝等，在国内获得了广泛应用。相对于已经普遍利用的热解油和钢丝来说，热解炭黑含有质量分数14-21%的灰分和胶质层，它的高价值利用是实现废旧轮胎循环回用的关键。很多研究者开展了热解炭黑不同的改性处理工艺研究，改性后的热解炭黑可被应用于多个领域。该文主要概括了热解改性炭黑在橡胶生产中的补强作用、改性活性炭吸附剂、电池材料、以及沥青和油墨填料等方面的应用，综述了上述应用领域内热解炭黑的处理和改性方法，并指出今后热解炭黑高价值回用的方向和改性方法。

Abstract:

The waste tire is a harmful solid waste to the environment. Pyrolysis technology has been widely used among the existing recycling technologies, which can effectively recover pyrolysis oil, carbon black (CBp), steel wire, etc. Compared with the commercially used pyrolysis oil and steel wire, pyrolysis carbon black contains 17% ash and gum layer and its high-value utilization is the key to realize the recycling of waste tires. Many researchers have investigated different modification treatment processes of pyrolysis carbon black, demonstrating that the modified CBp can be applied in many fields. Herein, this work reviews the recent research progress of modified CBp, including the reinforcement application of pyrolysis in rubber production, the activated carbon-based adsorbents, battery materials, and asphalt and ink fillers, and summarizes the treatment of pyrolysis carbon black in the above application fields. The research trends of modification methods for high-value recycling of pyrolytic CBp are also discussed in this paper.