Hydrophilicity
- Polymer should have polar groups/moieties
- These groups attracts water molecules
- Hydrophilicity results in comfortable feel
- Hydrophilicity also prevents charge build-up (static electricity)
- Static electricity is discharged by the water molecules to the surroundings.
- Static electricity:
- Dirt particle attraction
- Discomfort (ballooning, clinging)
Water molecules
wikimedia/ public domain
Instantaneous dissipation for conductive materials
- Electric charge generated by frictional forces is called triboelectrification.
- One can order materials and fibres in a series (triboelectric series).
- A material will be positively charged when rubbed against another material below it in the series.
| Fibre type | |
|---|---|
| Positive end of series | Negative end of series |
| Glass, Wool, Nylon 6, Nylon 6,6 Rayon, Cotton, Acetate, Hemp, Silk, Polyester, Acrylic, Modacrylic Polyethylene, Polypropylene | Polytetrafluorethylene |
The greater the distance between the materials in the series the greater the electric charge.
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Project
Contact
This resource was developed as part of an Erasmus+ project, funded with support from the European Commission under grant agreement 2016-1-SE01-KA203-22064.
The project was a collaboration between:
- The University of Borås, Sweden
- The University of the Highlands and Islands, Scotland
- The University of Alcalá, Spain
- Digital Connections, Scotland
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