Development of Electrically Conductive Wood-Based Panels for Sensor Applications

Küçük Resim Yok

Tarih

17.11.2024

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

MDPI

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

This study investigates the development of electrically conductive panels for application as emergency detection sensors in smart house systems. These panels, composed of wood chips coated with polymeric methylene diphenyl isocyanate, were modified with carbon black and carbon fibers to enable detection of moisture, temperature, and pressure variations. Manufactured via hot pressing, the panels retained standard mechanical properties and exhibited stable performance under diverse environmental conditions. Carbon black-filled panels achieved electrical percolation at a lower filler concentration (5%) compared to carbon fiber-filled panels. The incorporation of carbon black reduced the electrical resistivity to 8.6 ohm·cm, while the addition of carbon fibers further decreased it to 7.7 ohm·cm. In terms of sensor capabilities, panels containing carbon fibers demonstrated superior sensitivity to moisture and pressure changes. However, carbon black was ineffective for temperature sensing. Among the carbon fiber-filled panels, those with 20 wt.% concentration exhibited the best performance for moisture and pressure detection, whereas panels with 40 wt.% carbon fiber content displayed the most reliable and consistent temperature-sensing properties.

Açıklama

Anahtar Kelimeler

wood-based composites, sensor, electrically conductive board, carbon fillers

Kaynak

POLYMERS

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

16

Sayı

21

Künye

Kocoglu, O. B., Pretschuh, C., Unterweger, C., Kodal, M., & Ozkoc, G. (2024). Development of Electrically Conductive Wood-Based Panels for Sensor Applications. Polymers, 16(21), 3026.