Thermal effusivity of different tabletop materials in relation to users' perception.

Area of Science:

• Human-Computer Interaction
• Materials Science
• Building Environment

Background:

• Tactile interaction with the built environment, particularly furniture, is often overlooked.
• Understanding material thermal properties is crucial for user comfort and experience.

Purpose of the Study:

• To objectively evaluate the thermal properties of ten tabletop materials.
• To assess user perceptions of these materials after interaction.

Main Methods:

• Infrared thermography was employed to measure temperature distribution and changes.
• Sixteen participants evaluated ten materials in a randomized order.
• User perceptions were collected through ratings after material contact.

Main Results:

• Materials with lower thermal effusivity (wood-based) showed greater temperature differences after 15 minutes of contact.
• Wood-based materials were rated higher for pleasantness, suitability for writing, and general use.
• Oak-based materials received the highest aesthetic ratings, and surface treatment influenced user perception.

Conclusions:

• Lower thermal effusivity in tabletop materials correlates with positive user tactile perception.
• Lacquered solid wood offers optimal thermal and user-rated performance for tabletops.
• Material selection significantly impacts the tactile experience in the built environment.