Publicação
Dynamic light filters: Smart materials applied to textile design
| Resumo: | Smart textiles are able to interact with the environment and perform dynamic changes over time. Introducing new sensing and reactive qualities to conventional textiles’ functions and expressions, smart textiles brings forth innovative potential for the design of responsive environments. Variation of artificial light intensity and tone are commonly achieved by acting upon the light source. The ability to sense and react of smart textiles creates possibilities to change the incident light that passes through them – light transmittance – to design dynamic light scenarios and perform as Dynamic Light Filters. This research studied colour change and shape memory textiles in interaction with light. The objectives were to develop integration processes of thermochromic pigments in textile substrates that change colour according to a predefined colour ratio, from similar to different and the inverse; develop a workflow setup to design and manufacture shape memory textiles in which dynamic behaviour achieves predefined geometric morphologies, changing shape with layer number variation; study resistive heating activation of thermoresponsive textiles with metal-based conductive materials and explore and discuss dynamic qualities of thermo-responsive textiles behaviour based on selected design variables that affect resistive heating and textile thermal expansion and also the dynamic relationship between colour, shape and light in the expressions of change. The results attained have proposed systematic processes of paste recipe formulation of thermochromic and conventional pigments; outlined a process to develop shape memory textiles based on origami morphologies with one or two different morphologies, based on a bias mechanism; and demonstrated the influence of a set of variables in the dynamic qualities and expressions of change, designing thermoresponsive textile behaviour and creating dynamic and interactive lighting. |
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| Autores principais: | Cabral, Isabel Maria Dias |
| Assunto: | Engenharia e Tecnologia::Engenharia dos Materiais |
| Ano: | 2018 |
| País: | Portugal |
| Tipo de documento: | tese de doutoramento |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Smart textiles are able to interact with the environment and perform dynamic changes over time. Introducing new sensing and reactive qualities to conventional textiles’ functions and expressions, smart textiles brings forth innovative potential for the design of responsive environments. Variation of artificial light intensity and tone are commonly achieved by acting upon the light source. The ability to sense and react of smart textiles creates possibilities to change the incident light that passes through them – light transmittance – to design dynamic light scenarios and perform as Dynamic Light Filters. This research studied colour change and shape memory textiles in interaction with light. The objectives were to develop integration processes of thermochromic pigments in textile substrates that change colour according to a predefined colour ratio, from similar to different and the inverse; develop a workflow setup to design and manufacture shape memory textiles in which dynamic behaviour achieves predefined geometric morphologies, changing shape with layer number variation; study resistive heating activation of thermoresponsive textiles with metal-based conductive materials and explore and discuss dynamic qualities of thermo-responsive textiles behaviour based on selected design variables that affect resistive heating and textile thermal expansion and also the dynamic relationship between colour, shape and light in the expressions of change. The results attained have proposed systematic processes of paste recipe formulation of thermochromic and conventional pigments; outlined a process to develop shape memory textiles based on origami morphologies with one or two different morphologies, based on a bias mechanism; and demonstrated the influence of a set of variables in the dynamic qualities and expressions of change, designing thermoresponsive textile behaviour and creating dynamic and interactive lighting. |
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