Outstanding flame retardancy for poly(vinyl alcohol) achieved using a resveratrol/tannic acid complex. Issue 1 (21st December 2021)

• Record Type: Journal Article
• Authors: Lin, Yuan; Chen, Jialian; Li, Hongzhou
• Is Part Of: RSC advances. Volume 12:Issue 1(2022)
• Page Start: 285
• Page End: 296
• Publication Date: 2021-12-21
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra08000h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The rigid molecular structure of biobased resveratrol/tannic acid (RETA) complex increases the residual amount of RETA-poly(vinyl alcohol) after complete combustion. Abstract : Resveratrol/tannic acid-poly(vinyl alcohol) (RETA-PVA) blends have been prepared by compression molding using poly(vinyl alcohol), tannic acid and resveratrol as raw materials. The effects of different resveratrol/tannic acid ratios on the flammability of RETA-PVA blends have been studied. The flammability of the RETA-PVA blends was assessed using cone calorimetry, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Results indicate that RETA-PVA molecules occur through hydrogen bonding and RETA-PVA blends are amorphous. The glass transition temperature for RETA-PVA-2 is the highest among all blends and the peak of heat release rate and smoke production rate for RETA-PVA is 38.4% and 43.9% lower than that for PVA, respectively. With the addition of resveratrol, the residual amount of RETA-PVA after complete combustion is greatly increased, to 30 times that for PVA, indicating that RETA-PVA blends display excellent flame retardant properties.