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  • High strength, acid‐resistant composites from canola, sunflower, or linseed oils: Influence of triglyceride unsaturation on material properties
Title: High strength, acid‐resistant composites from canola, sunflower, or linseed oils: Influence of triglyceride unsaturation on material properties
Abstract Here are reported composites made by crosslinking unsaturated units in canola, sunflower, or linseed oil with sulfur to yieldCanS,SunS, andLinS, respectively. These plant oils were selected because the average number of crosslinkable unsaturated units per triglyceride vary from 1.3 for canola to 1.5 for sunflower and 1.8 for linseed oil. The remeltable composites show compressive strengths that increase with increasing unsaturation number fromCanS(9.3 MPa) toSunS(17.9 MPa) toLinS(22.9 MPa). These values forSunSandLinSare competitive when compared with the value of 17 MPa required for residential building using traditional Portland cement. The plant oil composites are recyclable over many cycles and can retain up to 100% of strength after 24 hr in oxidizing acid under conditions where Portland cement is dissolved in under 30 min. Infusion of the composites into premade cement blocks affords them with significantly improved acid resistance as well. This work thus provides a simple, nearly 100% atom economical route to convert plant oils and waste sulfur to composites having enhanced performance over commercial structural materials.  more » « less
Award ID(s):
1708844
PAR ID:
10456416
Author(s) / Creator(s):
 ;  ;  ;  ;  ;  ;  
Publisher / Repository:
Wiley Blackwell (John Wiley & Sons)
Date Published:
Journal Name:
Journal of Polymer Science
Volume:
58
Issue:
16
ISSN:
2642-4150
Page Range / eLocation ID:
p. 2259-2266
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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