Title

Bioinspired Strong Nanocellular Composite Prepared with Magnesium Phosphate Cement and Polyurea Aerogel

Abstract

A strong nanocellular composite with stiff magnesium phosphate cement (MPC) particles and soft polyurea aerogel (PUA) has been synthesized and characterized. Utilizing the nano-confinement effect, the effective Young's modulus and the compressive strength of the ligaments are 8-10 times higher than those of PUA. Taking advantage of the hierarchical cellular structure of PUA, the low density (0.285 g·cm-3) and high porosity (86.4%) features are preserved. This bioinspired nano-composite design has shown superior composite action, offering both high strength and deformability. The verified analytical model reveals the bioinspired designing rules for MPC/PUA material system.

Department(s)

Civil, Architectural and Environmental Engineering

Second Department

Chemistry

Keywords and Phrases

Cellular; Composite; Magnesium phosphate cement; Nano; Polyurea aerogel

International Standard Serial Number (ISSN)

0167-577X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Elsevier B.V., All rights reserved.

Share

 
COinS