制造阻燃硬化PLA基3D打印材料,其中含有通过植物酸修饰的木质素
Siqi Ren1,2, Dongfang Fan1,2, Qian Zhang1,2
1College of Chemistry and Materials Science, Hebei University Baoding 071002 China.
RSC advances
|October 16, 2025
概括
一种基于素的新型阻燃剂 (P2N-lig) 增强了聚乳酸 (PLA) 复合材料,提高了热稳定性和耐火性. 这种可持续材料对3D打印应用具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续化学 可持续化学
背景情况:
- 生物基芳香聚合物宁为开发环保材料提供了潜力.
- 阻燃剂对于提高聚合物安全性至关重要,但许多传统选择带来了环境问题.
- 开发可持续的阻燃剂来自可再生资源,如素是一个活跃的研究领域.
研究的目的:
- 合成一种基于素的新型阻燃剂,其中包含和.
- 为了评估聚乳酸 (PLA) 复合材料的阻燃性能和机械性能,这些复合材料与合成的阻燃剂进行了修改.
- 评估这些改性PLA复合材料对于3D打印应用的适用性.
主要方法:
- 通过曼尼赫反应和酸化合成一种基于素的阻燃剂 (P2N-lig).
- 将P2N-lig纳入含有TPU和MMT的硬化PLA (T-PLA) 复合材料中.
- 使用像热度计和UL-94测试等技术,对物理化学,热稳定性和阻燃性能进行表征.
- 评估3D打印样品的机械性能和性能.
主要成果:
- 合成的P2N-lig有效地提高了T-PLA复合材料的阻燃性.
- 9重%的P2N-lig配方获得了UL-94 V-0评级,显著降低了峰值热释放率 (pHRR) 和总热释放率 (THR).
- 用于3D打印的6重%P2N-lig配方显示了限制氧指数 (LOI) >24%,UL-94 V-2分类,以及最小的机械降解.
结论:
- 开发的基于素的阻燃剂 (P2N-lig) 为提高PLA复合材料的消防安全提供了可持续的解决方案.
- 经过修改的PLA复合材料表现出机械性能和阻燃性之间的良好平衡.
- 该材料显示出在3D打印中使用的巨大潜力,有助于开发更安全,更可持续的增材制造.
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