Ground tire rubber (GTR) has been used as a sustainable low-cost modifier in various composites. However, due to the hydrophobic nature of GTR, it is in compatible with most matrices and results in deterioration in both mechanical and physical properties of composites. This necessitates pre-modification of the powdered rubber to improve the interfacial bonding at the rubber-matric interface. The most common GTR modification research relies on surface etching via use of various techniques. The current review aims to give a detailed overview of the surface etching chemical modification methods for GTR for incorporation into various matrices such as concrete, bitumen and polymers. The review will serve as a guide for engineers, chemists and manufactures with interest of including GTR in any type of composite for achieving compatibility with the main matrix. The surface chemical etching treatment methods such as acid etching, hydroxylation, oxidation, and radiation methods are discussed in this work. The characterization methods to confirm the functional groups on the modified GTR and the effect of the treatment on the resultant GTR composites are also highlighted. Finally, this review highlights the advantages and limitations of the chemical surface etching processes for GTR.

地面轮胎橡胶（GTR）已在各种复合材料中用作可持续的低成本改性剂。但是，由于GTR的疏水性，它与大多数基质相容，并导致复合材料的机械和物理性能下降。这需要对粉末状的橡胶进行预改性以改善橡胶-基质界面处的界面粘合。最常见的GTR改性研究依赖于通过使用各种技术进行的表面蚀刻。本篇综述旨在详细介绍GTR的表面蚀刻化学改性方法，以便将其掺入各种基质中，例如混凝土，沥青和聚合物。该评论将作为工程师的指南，化学家和制造商希望将GTR包含在任何类型的复合材料中，以实现与主基质的相容性。在这项工作中讨论了表面化学蚀刻处理方法，例如酸蚀刻，羟基化，氧化和辐射方法。还强调了确定修饰的GTR上的官能团的表征方法以及该处理对所得GTR复合材料的影响。最后，本文重点介绍了用于GTR的化学表面蚀刻工艺的优点和局限性。还强调了确定修饰的GTR上的官能团的表征方法以及该处理对所得GTR复合材料的影响。最后，本文重点介绍了用于GTR的化学表面蚀刻工艺的优点和局限性。还强调了确定修饰的GTR上的官能团的表征方法以及该处理对所得GTR复合材料的影响。最后，本文重点介绍了用于GTR的化学表面蚀刻工艺的优点和局限性。