Halogen-Free Flame Retarded Poly(Lactic Acid)with an Isosorbide-Derived Polyphosphonate  

作　　者：Wenwen Guo Wei Cai Dong Wang Junling Wang Xiefei Zhu Bin Fei 

机构地区：[1]Key Laboratory of Eco-Textiles,Ministry of Education,College of Textile Science and Engineering,Jiangnan University,Wuxi,214122,China [2]Institute of Textiles and Clothing,The Hong Kong Polytechnic University,Hung Hom,Hong Kong,China [3]State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei,230026,China [4]Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control,College of Safety Science and Engineering,Nanjing Tech University,Nanjing,211816,China [5]Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei,230026,China

出　　处：《Journal of Renewable Materials》2022年第7期1875-1888,共14页可再生材料杂志（英文）

基　　金：The work was financially supported by the Hong Kong Scholars Program(Grant No.XJ2020003);the Basic Research Program of Jiangnan University(JUSRP121029).

摘　　要：Fabrication of flame retardants from renewable biomass has aroused extensive interest over the past decade.This work reported a synthesis of isosorbide-derived polyphosphonate(PICPP)as an anti-flammable agent for poly(lactic acid)(PLA).The presence of PICPP notably declined the storage modulus of PLA/PICPP owing to the declined molecular weight of PLA catalyzed by the presence of PICPP.PLA and PLA/PICPP thermally degraded in one stage under either air or nitrogen atmosphere.With increasing the amount of PICPP,the onset thermal decomposition temperature of PLA/PICPP was decreased gradually,owing to the earlier decomposition of PICPP.With only 10 wt%of PICPP,PLA/PICPP-10 achieved a high limiting oxygen index of 30.0%and UL-94 V-0 classification,manifesting that PICPP was an efficient anti-flammable agent for PLA.The inclusion of 15 wt%PICPP also caused 33%and 16%decline in PHRR and THR of PLA,respectively.TG-IR results clarified that PLA/PICPP produced the less typical pyrolysis products especially flammable carbonyls than PLA,which may account for the suppressed PHRR and THR values of PLA/PICPP.

关 键 词：ISOSORBIDE polyphosphonate poly(lactic acid) flame retardancy 

分 类 号：TB324[一般工业技术—材料科学与工程] TQ325[化学工程—合成树脂塑料工业]