DOAJ Open Access 2023

Strength and toughness of tissue adhesives depend on thickness

Wenlei Zhang Yang Gao Yifan Zhou Hou Wu Zhigang Suo +1 lainnya

Abstrak

Adhesives are commonly assessed by two properties: strength and toughness. Here we study how strength and toughness are affected by adhesive thickness. We sandwich gelatin adhesives of various thicknesses between glass substrates. The transparency of the adhesives and substrates enables us to observe crack nucleation and growth. We measure strength by lap shear of samples without precrack, and measure toughness by lap shear of samples with precrack. Our data show a characteristic adhesive thickness, about 0.5 mm. For adhesives below the characteristic thickness, strength is independent of thickness, but toughness increases with thickness. For adhesives above the characteristic thickness, strength decreases as thickness increases, but toughness is a constant. Strength scatters narrowly for samples of a thin adhesive, but broadly for samples of a thick adhesive. By contrast, toughness scatters narrowly for samples of all thicknesses. This work shows the importance of assessing adhesives of various thicknesses.

Topik & Kata Kunci

Science (General)

Penulis (6)

Wenlei Zhang

Yang Gao

Yifan Zhou

Hou Wu

Zhigang Suo

Tongqing Lu

Format Sitasi

APA MLA BibTeX

Zhang, W., Gao, Y., Zhou, Y., Wu, H., Suo, Z., Lu, T. (2023). Strength and toughness of tissue adhesives depend on thickness. https://doi.org/10.1016/j.giant.2023.100200

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1016/j.giant.2023.100200
Akses: Open Access ✓