Full biomass-based polylactic acid (PLA) aerogel with robust flame retardancy and long-term early fire warning

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-04-01 DOI:10.1016/j.colsurfa.2025.136811

Siqi Wang , Guoli Yan , Yaduo Zheng , Yunhong Jiao , Jianzhong Xu , Haiyun Ma

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Abstract

Currently, developing environmentally friendly materials with fire warning capabilities is an attractive topic in the field of flame retardant. This study uses the biomass-derived material polylactic acid (PLA) as a matrix, and hydroxyapatite (HA) and phytic acid (PA) as flame retardants, to prepare a fully biomass aerogel (P-HA-PA) with excellent flame retardancy and thermal insulation properties. The limiting oxygen index (LOI) of the P-HA-PA aerogel is 38.9 %, which meets the vertical burning test (UL-94) V-0 rating and has good insulation and drip resistance. Compared to pure PLA aerogel, the total heat release (THR) of P-HA-PA is reduced by 60 %, and the total smoke production (TSP) is reduced by about 70 %. Additionally, the aerogel exhibits an ultra-long fire response time upon contact with flames. The composite aerogel prepared in this study shows great potential application value in fire protection and early warning

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.