“…Protective fiber materials have a wide range of applications in medical and health care, personal protection, industrial protection, and other fields. − Especially, the outbreak of the COVID-19 pandemic in early 2020 has highlighted the importance of protective fiber materials. , Currently, protective fiber materials are usually made of nondegradable polymers, including polyethylene, polypropylene, polyester, and so on. , The protective products made from these polymers are difficult to degrade after being discarded, and even after degradation, they still generate a large amount of microplastics, which can cause serious harm to water, animals, and human beings. , Therefore, it is of great significance to use biodegradable polymers to replace these commonly used nondegradable polymers to develop protective fiber materials. Polylactic acid (PLA) is a biodegradable polymer with excellent performance, which has been widely used in biomedicine, packaging, textile, and other fields. − Developing protective fiber materials using PLA as raw material can effectively solve the pollution problem raised by protective materials and prepare for future outbreaks of epidemics.…”