Waste tires are mainly composed of natural rubber, synthetic rubber, carbon black, steel wires, and fibers. Rubber, which is a valuable resource, is one of the raw materials used for membrane preparation. In this study, a convenient and environmentally friendly synthetic technology, hot-pressing method was developed for reusing reclaimed tire rubber to prepare gas-separation membranes. The effects of the preparation conditions, including hot-pressing temperature, pressure, and time on the membrane structure and separation performance, were investigated. Thermogravimetric analysis and field-emission scanning electron microscopy were carried out. The Thermogravimetric analysis, Fourier-transform infrared spectroscopy, and cross-linking degree results showed that the reclaimed tire rubbers used in this study consisted mainly of styrene-butadiene rubber and polybutadiene rubber. Reclaimed tire rubbers with low carbon contents and low degrees of cross-linking are beneficial for fabricating membranes by hot-pressing. The hot-pressing technique proposed in this study yielded dense gas-separation membranes from the reclaimed tire rubbers, proved to be an efficient approach for simplified recycling of waste tires and can in fact inspire the development of new recycling routes. The hot-pressed membranes derived from reclaimed tire rubber showed competitive results with a CO₂/N₂ selectivity of 12.8 and CO₂ permeability of 161 Barrer.

废轮胎主要由天然橡胶，合成橡胶，炭黑，钢丝和纤维组成。橡胶是一种宝贵的资源，是用于制膜的原料之一。在这项研究中，开发了一种方便，环保的合成技术，热压方法，用于重复利用再生轮胎橡胶来制备气体分离膜。研究了制备条件，包括热压温度，压力和时间对膜结构和分离性能的影响。进行了热重分析和场发射扫描电子显微镜。热重分析，傅立叶变换红外光谱，交联度结果表明，本研究中所用的再生轮胎橡胶主要由丁苯橡胶和聚丁二烯橡胶组成。具有低碳含量和低交联度的再生轮胎橡胶有利于通过热压制造膜。这项研究中提出的热压技术从回收的轮胎橡胶中产生了致密的气体分离膜，被证明是简化废轮胎回收的有效方法，并且实际上可以激发新的回收路线的发展。源自再生轮胎橡胶的热压膜与二氧化碳相比具有竞争优势 这项研究中提出的热压技术从回收的轮胎橡胶中产生了致密的气体分离膜，被证明是简化废轮胎回收的有效方法，并且实际上可以激发新的回收路线的发展。源自再生轮胎橡胶的热压膜与二氧化碳相比具有竞争优势 这项研究中提出的热压技术从回收的轮胎橡胶中产生了致密的气体分离膜，被证明是简化废轮胎回收的有效方法，并且实际上可以激发新的回收路线的发展。源自再生轮胎橡胶的热压膜与二氧化碳相比具有竞争优势₂ / N _2的选择性为12.8，CO _2的渗透性为161 Barrer。