| Summary: | This research explores modular and sustainable design, focusing on
developing of sustainable modular product design (mspd) to promote environmental
protection. With the replaceable filter mask (rfm) as a case study, it examines user
behavioral intentions by applying the theory of planned behavior (tpb) and the
technology acceptance model (tam). After a comparative analysis of various
models (tpb, tam, utaut, utaut2), the study concludes that the unified
theory of acceptance and use of technology 2 (utaut2) is most suitable for
assessing mspd as a new technology. A mixed-method sequential explanatory
design was employed. In the quantitative phase, data from 500 mechanical industry
employees (mies) in shanghai's jinshan district were analyzed using structural
equation modeling (sem) to explore the willingness to use mspd-based rfm. The
study also examined mediating and moderating effects through a chained structural
model. In the qualitative phase, thematic analysis of structured and semi-structured
interviews with mies provided insights into the factors influencing their willingness
to use the rfm. Key findings indicate that latent variables in utaut2, such as
performance expectancy, social influence, hedonic motivation, and habit,
positively affect mies' use of mspd’s rfm. Newly added variables like
decorativeness and innovativeness also play a significant role.
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