Improvement in mechanical properties of NBR/LiClO4/POSS nanocomposites by constructing a novel network structure. (18th January 2017)

• Record Type: Journal Article
• Authors: Yang, Shuyan; Fan, Hongbo; Jiao, Yuanqi; Cai, Zhuodi; Zhang, Peng; Li, Yangping
• Is Part Of: Composites science and technology. Volume 138(2017)
• Page Start: 161
• Page End: 168
• Publication Date: 2017-01-18
• Subjects: Nano composites -- Interface -- Mechanical properties -- Casting; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2016.12.003
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: The mechanical properties and the possible micro-structure of nitrile-butadiene rubber/lithium perchlorate/polyhedral oligomeric silsesquioxane (NBR/LiClO4 /POSS) nanocomposites have been investigated thoroughly. The interactions among Li + cations, CN groups and COC groups bring in a novel network structure consisting of several kinds of effective crosslinks, causing an increase in the glass transition temperature of POSS, as well as in the crosslink contribution ( G c ) and the constraint contribution ( G e ), which facilitates strong interface cohesion between POSS and NBR matrix and a well dispersion of POSS. The addition of POSS not only increases the crosslinking density of NBR/LiClO4 /POSS nanocomposites, but also improves the 300% modulus and tensile strength greatly. Therefore, a possible micro-structure has been proposed to express the experimental observation.