Minimum Halloysite Length for Efficient Load Transfer Through the Interphase of Polymer Nanocomposites in Biomedical Applications Publisher



Zare Y¹ ; Rhee KY²
Source: JOM Published:2023

Abstract

“Lc” as a compulsory length of halloysite nanotubes (HNTs) that leads to efficient load transfer through the interphase zone is correlated to the interphase characteristics according to the predictions made by linking the Pukanszky model and the proposed model for determining the strength of nanocomposites. The proposed model assumes effective levels of interphase depth and filler concentration. The predictabilities of the model are demonstrated by comparing the prediction results to experimental data, and it is found that the effects of all factors on “Lc” and nanocomposite strength are justified. The maximum value of “Lc” is 1504 nm in the absence of the interphase zone, but “Lc” decreases to 1378 nm when the interphase depth is 20 nm. Similarly, the maximum value of “Lc” is 1520 nm when the interphase strength is 100 MPa, but it decreases to 1405 nm when the interphase strength is 1000 MPa. Hence, the interphase depth and strength adversely affect the value of “Lc.” The interphase depth of 20 nm substantially increases the system strength by 40%. Moreover, the composite strength improves by 21% when the interphase strength is 1000 MPa. Therefore, the interphase depth and strength directly govern the strength of nanocomposites. © 2022, The Minerals, Metals & Materials Society.