The appraisal of sustainable materials

This paper seeks to understand how users appraise and perceive sustainable material s . Using th inking aloud sessions , appraisals of sustainable materials embodied in commercial products were collected from users and categorised . To account for the appraisal of systemic features of materials w e have extended a previous categorisation of material appraisals . We have also investigated the relationships between the appraisal themes of sustainable materials . The results stress the influence of material origin in the appraisal. This understanding is useful to facilitate the uptake of the materials