Author:
Xu Yong,Wang Songhang,Chang Jinming,Xu Zhou,Zeng Qi,Wang Zhonghui,Yan Jun,Chen Yi
Abstract
Abstract
As an imitation of genuine leather, polyvinyl chloride (PVC) artificial materials are versatile, but suffers from being flammable due to the presence of large amounts of combustible plasticizers. Under such circumstance, intrinsically flame-retardant plasticizers displaying dual functions have been a subject of intensive research interest. However, previous strategies attempting to covalently attach flame-retardant moiety to plasticizers invariably required either expensive starting materials or laborious and tedious procedures, ultimately limiting their scale-up application in industry. In addition, driven by escalating demand of halogen-free flame retardants worldwide from an environmental health perspective, previously reported intrinsically flame-retardant plasticizers were mainly halogen-free, less attractive in PVC artificial material industry simply because PVC itself is a halogen-containing polymer. Here, we report an approach to introduce chlorine moieties into unsaturated fatty acid methyl ester by a simple addition reaction occurring on carbon-carbon double bonds, yielding a chlorine-containing, intrinsically flame-retardant bio-plasticizer. When combined with di-(2-ethylhexyl) phthalate (DOP) in PVC formulations, the chlorinated fatty acid methyl ester is qualified as a co-plasticizer while conferring flame retardancy upon the PVC coatings. This approach involves only a one-step procedure that employs renewable fatty acid methyl esters and cheap chlorine gas as raw materials, thus being of great potential to enable intrinsically flame-retardant bio-plasticizers on a large scale to manufacture functional PVC artificial materials for application in fire-prone scenarios.
Graphical abstract
Funder
National Key Research and Development Program of China
Science and Technology Planning Project of Sichuan Province
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Publisher
Springer Science and Business Media LLC
Reference22 articles.
1. Wang FC-Y. Polymer additive analysis by pyrolysis–gas chromatography: II. Flame retardants. J Chromatogr A. 2000;886:225–35.
2. Lenoir D, Kampke-thiel K. Formation of polybrominated dibenzodioxins and dibenzofurans in laboratory combustion processes of brominated flame retardants. In: Nelson GL, editor. Fire and polymers ΙΙ. American Chemical Society; 1995. p. 377–92.
3. Jia P, Zhang M, Liu C, Hua L, Feng G, Bo C, et al. Effect of chlorinated phosphate ester based on castor oil on thermal degradation of poly (vinyl chloride) blends and its flame retardant mechanism as secondary plasticizer. RSC Adv. 2015;5:41169–78.
4. Pan S, Hou D, Yang G, Xie Q, Yan S, Zeng Q, et al. Epoxidized methyl ricinoleate bio-plasticizer with a pendant acetate ester for PVC artificial material: circumventing existing limit on achievable migration resistance. J Leather Sci Eng. 2019;1:2.
5. Azeddine R, Djarmal Z, Michel A, Abdellah H. Spectroscopic and mechanical properties of PVC plasticized by bio-plasticizer ESO. J Polymer Res. 2020;27:1.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献