Qiu Jianhui, Zhang Guohong, Sakai Eiichi, Liu Wendi, Zang Limin
Department of Mechanical Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Akita 015-0055, Japan.
College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China.
Polymers (Basel). 2020 Mar 31;12(4):759. doi: 10.3390/polym12040759.
Ultrasonic welding (USW) is a promising method for the welds between dissimilar materials. Ultrasonic thermal welding by the third phase (TWTP) method was proposed in combination with the formation of a third phase, which was confirmed as an effective technology for polymer welding between the two dissimilar materials compared with the traditional USW. This review focused on the advances of applying the ultrasonic TWTP for thermoplastic materials. The research development on the ultrasonic TWTP of polycarbonate (PC) and polymethyl methacrylate (PMMA), polylactic acid (PLA) and polyformaldehyde (POM), and PLA and PMMA are summarized according to the preparation of the third phase, welded strength, morphologies of rupture surfaces, thermal stability, and others. The review aimed at providing guidance for using ultrasonic TWTP in polymers and a basic understanding of the welding mechanism, i.e., interdiffusion and molecular motion mechanisms between the phases.
超声焊接（USW）是一种用于异种材料焊接的很有前景的方法。结合第三相的形成提出了超声热焊接的第三相（TWTP）方法，与传统超声焊接相比，该方法被证实是一种用于两种异种材料之间聚合物焊接的有效技术。本综述重点关注超声TWTP在热塑性材料应用方面的进展。根据第三相的制备、焊接强度、断裂表面形态、热稳定性等方面，总结了聚碳酸酯（PC）与聚甲基丙烯酸甲酯（PMMA）、聚乳酸（PLA）与聚甲醛（POM）以及PLA与PMMA的超声TWTP研究进展。本综述旨在为聚合物中超声TWTP的应用提供指导，并对焊接机理，即相之间的相互扩散和分子运动机理有基本的了解。
