Ultratough Polyurethane Elastomers for Artificial Ligaments

Release time:2024-07-17 Hits:

Impact Factor:9.6

DOI number:10.1021/acsmaterialslett.4c00505

Affiliation of Author(s):东北林业大学

Journal:ACS Materials Letters

Abstract:Aromatic polyols are pivotal in conferring specific properties to synthetic polymers. This study focuses on extracting natural lignin polyols (LPs) that feature a distinctive aromatic backbone and a plethora of reactive sites from lignocellulosic waste via a simultaneous functionalization method. Incorporating just 10% LPs into polyurethane substantially improves the strength and performance of elastomers, with breakthrough characteristics exceeding those of similar materials. These polyurethane elastomers exhibit extreme toughness with fracture stresses up to 3.5 GPa and impressive energy absorption at 1.3 GJ m–3. They also demonstrate extraordinary flexibility, stretching up to 4,800% and lifting weights 200,000 times their own. Additionally, their biocompatibility makes them suitable for biomedical applications like artificial ligaments. This research highlights an efficient, sustainable technique for advancing polymer technology using natural resources, which adds significant value to discarded materials.

Co-author:Jiang Zhang,Yuhan Lou,Jiale Li,Guoqiang Han,Suqing Zeng,Yanyan Wang

First Author:Peng Zhao

Indexed by:Journal paper

Correspondence Author:Yongzhuang Liu,Haipeng Yu

Document Type:J

Volume:6

Page Number:3226-3237

Translation or Not:no

Date of Publication:2024-01-01

Included Journals:SCI

Links to published journals:https://pubs-acs-org-443.webvpn.nefu.edu.cn/doi/10.1021/acsmaterialslett.4c00505