This article takes the construction of first-class undergraduate courses as an opportunity

combined with the training requirements of "High-level

Innovative and Challenging"

and designs a comprehensive and innovative experiment that integrates multidisciplinary knowledge—research on composite modification of biodegradable polymer. The experiment adopts the PBL teaching method with "Chaoxing Learning Link" as a digital tool

and guides students to self-learn

explore and research to complete the experimental design and operation through the way of problem introduction. Then the experiment cultivates students' experimental interest and hands-on ability

and arouses students' attention to biodegradable polymer materials. The analysis of teaching effect shows that the experiment helps to improve students' comprehensive quality

ability to solve complex engineering problems and innovation ability.