As people’s living standards rise, textile waste becomes more significant, and the number of waste textiles grows swiftly, wreaking havoc on the earth’s ecosystem. Simultaneously, the creation of furniture consumes a significant amount of wood. The paint and adhesive used to manufacture it are also unsustainable and harmful to human beings. Therefore, one of the most urgent environmental challenges that needs to be paid attention to at present is the recycling of waste textiles and the sustainable recycling of furniture. Given this situation, this study proposes a solution combining sustainable design with composite material manufacturing. Guided by this solution, this study obtained a waste textile-starch composite material combining waste textiles, starch, and other components using microwave expansion technology. The material is biodegradable, environmentally friendly, and non-polluting. It can be customized to meet different design needs. Then, this research applies the material to sustainable furniture design and obtains a set of design works with sustainable characteristics. This kind of sustainable design scheme can eliminate the pollution and waste of waste textiles. At the same time, waste textile-starch composites can also serve as an economical and environmentally friendly alternative to many synthetic and natural materials used in furniture design and manufacturing. This reform scheme has a tremendous sustainable development promise and can simultaneously handle the problems of waste textile pollution and furniture resources.

Faced with the generally poor experience in pediatric outpatient in China, under the guidance of design thinking, based on the analysis and research of the main elements affecting child outpatients’ medical service experiences, this study proposes a set of strategic models that can improve child outpatients’ medical service experiences. Specifically, this study takes Shanghai Xinhua Hospital as a research case, combined with SPSS data statistics software, and comprehensively uses preliminary field research methods, questionnaire descriptive analysis methods, questionnaire satisfaction analysis methods, and questionnaire principal component analysis (PCA) methods as well as the structured interview method; thus, the main elements affecting child outpatients’ medical service experiences were obtained. Then, according to the main elements, a set of child outpatient medical service strategy models is proposed to improve child outpatients’ medical service experiences. Finally, the effectiveness of the strategy model is tested through satisfaction analysis and simulation case verification. The model is a people-centered, sustainable strategic model. With the support of design thinking, the strategic model takes the experience of children as the core improvement point, which is able to fully protect the rights and demands of child patients. At the same time, this strategy model can also reduce the workload of doctors, improve the operational efficiency of hospitals, promote a more equal distribution of medical resources, and reduce medical service costs. More importantly, it also encourages patients and their families to communicate and express their opinions to medical professionals, which can greatly reduce the tension between doctors and patients and effectively avoid doctor–patient conflicts. This has important implications for the sustainability of healthcare. However, this strategy model is only a guiding strategy for improving outpatient care for children. It does not provide detailed solutions around certain specific issues and specific implementations. At the same time, it is not a complex engineering design system but only provides a reference for improving children’s medical services in terms of strategic logic.

Interdisciplinary design thinking and methods are developed based on interdisciplinary research backgrounds. Through cross-integration with other disciplines, it can realize the design’s interdisciplinary collaborative innovation and development. At the same time, with the increasing interdisciplinary research interest in programmable mechanical metamaterials, design urgently needs to produce an interdisciplinary design thinking and method model to guide the development of related design research activities. Based on this, this research uses interdisciplinary research methods (mainly grafts method) to transplant the construction methods and related contents of programmable mechanical metamaterials into the research of design thinking and methods to propose a set of interdisciplinary design thinking based on programmable mechanical metamaterials (IDTPMMs). At the same time, under the guidance of IDTPMM, an interdisciplinary design method based on programmable mechanical metamaterials (IDMPMMs) is proposed. The thinking and method take the IDTPMM and IDMPMM process models as the concrete manifestation forms. Subsequently, this study selected two architecture design cases to analyze the rationality of IDTPMM and IDMPMM. This study believes that the proposal of IDTPMM and IDMPMM can narrow the focus of design research from the traditional macro scale to the micro scale of material research and development, which can drive design innovation with material innovation. Meanwhile, it can also change the design research from passive use of existing material mechanical properties to active programming control of material mechanical properties according to demand, which will greatly enhance the programmability, adjustability, controllability, and flexibility of design research with materials as carriers and objects. Additionally, this will have an essential impact on broadening the field of design interdisciplinary research and innovating design thinking and methods. In addition, IDTPMM and IDMPMM will also provide systematic theoretical guidance for designers to conduct interdisciplinary research on design and material science. Its scientific features will also make design research more rigorous, solid, and reliable.