Curcumin derivative intercalated expandable graphite: Imparting flame retardancy, anti-dripping and smoke suppression for polylactic acid composites

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING Industrial Crops and Products Pub Date : 2025-02-01 DOI:10.1016/j.indcrop.2024.120305

Wei Tan , Yin Tian , Chunlong Zuo , Yongli Zhang , Xiaoyu Liu , Ziyin Ye , Lu Bai , Yuanlin Ren , Xiaohui Liu

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Abstract

With the depletion of petrochemical resources and the escalating severity of white pollution, replacing petrochemical resources with bio-based resources aligns with sustainable development strategy. In this work, a novel biomass flame retardant (PCDAC) derived from curcumin was intercalated into expandable graphite (EG) to construct an intrinsically intumescent flame retardant system (EG@PCDAC), which was then melt blended with polylactic acid (PLA) to fabricate flame retardant, anti-dripping and smoke suppressive PLA composite (PLA/EG@PCDAC). The residual char of PLA/EG@PCDAC was 14.27 wt% under N₂ atmosphere, while reaching UL-94 V–0 rating. Furthermore, the peak heat release rate and total heat release of PLA/EG@PCDAC were reduced by 46.95 % and 19.02 % compared with original PLA, and the total smoke production and peak smoke production rate also decreased by 20.74 % and 72.09 %, respectively. This work offered green and feasible inspiration for exploring biomass flame retardants and renewable PLA-based functional materials.

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姜黄素衍生物插层膨胀石墨：对聚乳酸复合材料具有阻燃、防滴和抑烟作用

随着石化资源的枯竭和白色污染的日益严重，用生物基资源替代石化资源符合可持续发展战略。本研究将姜黄素衍生的新型生物质阻燃剂（PCDAC）插层到可膨胀石墨（EG）中，构建了本征膨胀型阻燃体系（EG@PCDAC），然后将其与聚乳酸（PLA）熔融共混，制成阻燃、防滴落和抑烟的聚乳酸复合材料（PLA/EG@PCDAC）。在N2气氛下，PLA/EG@PCDAC的残炭率为14.27 wt%，同时达到了UL-94 V-0等级。此外，与原始聚乳酸相比，PLA/EG@PCDAC 的峰值放热率和总放热率分别降低了 46.95 % 和 19.02 %，总产烟量和峰值产烟率也分别降低了 20.74 % 和 72.09 %。这项工作为探索生物质阻燃剂和可再生聚乳酸基功能材料提供了绿色可行的启示。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.