Atom-economic synthesis of an oligomeric P/N-containing fire retardant towards fire-retarding and mechanically robust polylactide biocomposites  被引量:3

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作  者:Jiabing Feng Yixia Lu Hongyan Xie Yan Zhang Siqi Huo Xiaohuan Liu Matt Flynn Zhiguang Xu Paulomi Burey Mark Lynch Hao Wang Pingan Song 

机构地区:[1]China-Australia Institute for Advanced Materials and Manufacturing,Jiaxing University,Jiaxing 314001,China [2]China National Textile and Apparel Council Key Laboratory of Flame Retardancy Finishing of Textile Materials,Soochow University,Suzhou 215123,China [3]Laboratory of Polymer Materials and Engineering,NingboTech University,Ningbo 315100,China [4]Centre for Future Materials,University of Southern Queensland,Springfield,QLD 4300,Australia [5]College of Life Science,Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation,Taizhou University,Taizhou 318000,China [6]School of Agriculture and Environmental Science,University of Southern Queensland,Springfield,QLD 4300,Australia

出  处:《Journal of Materials Science & Technology》2023年第29期86-95,共10页材料科学技术(英文版)

基  金:the National Natural Science Foundation of China(No.21801097);the Australian Re-search Council(Nos.DP190102992 and FT190100188).

摘  要:Renewable and biodegradable polylactide (PLA) has excellent mechanical strength but is highly flammable which restricts its practical applications. Many phosphorus/nitrogen (P/N)-based flame retardants are ef- fective in PLA, but their high addition loading usually decreases the mechanical strength of the PLA bulk. For polyphosphoramides, despite high fire-retardant efficiency, their chemical synthesis often generates chemical wastes as byproducts. Herein, we report an atom-economic and highly efficient oligomeric P/N fire retardant (APN) prepared using a mild Michael addition polymerization with no byproducts. Using only 3 wt% APN, the resulting PLA exhibits desired fire retardancy including a UL-94 V-0 rating and a limiting oxygen index of 37.6%. Furthermore, the toughness of the fire-retardant PLA increases by 85% compared to pure PLA, with both tensile strength and thermal stability preserved. This work offers an atom-economic strategy for synthesizing highly efficient P/N fire retardants for use in the creation of fire-resistant PLA with robust mechanical properties.

关 键 词:Atom economy Fire retardant POLYLACTIDE Mechanical properties 

分 类 号:TQ328.3[化学工程—合成树脂塑料工业]

 

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