东华大学材料科学与工程学院;东华大学纤维材料改性国家重点实验室;黑龙江伊品新材料有限公司;成都升宏新材料科技有限公司;
生物基聚酰胺PA56凭借其绿色低碳的原料来源以及与商业化PA66相近的综合性能而受到关注,但受限于脂肪族的柔性主链结构,无法满足高温场景下的使用需求。为解决上述问题,引入对苯二甲酸构筑生物基半芳香族共聚酰胺PA5T/56,对PA5T/56的结构及性能进行系统研究,并与生物基脂肪族聚酰胺PA56进行对比分析。红外光谱与核磁共振氢谱的表征结果验证了PA5T/56与PA56结构上的差异;相比PA56,PA5T/56具有更高的玻璃化转变温度(t_g=113℃)、更优的热稳定性(td, 5%=392℃,tdmax=423℃),以及更佳的热机械性能,同时其在高温下具有适宜加工的熔体黏度(<10~3 Pa·s),这些优势赋予生物基半芳香族PA5T/56广阔的应用前景。
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基本信息:
DOI:10.19886/j.cnki.dhdz.2023.0274
中图分类号:TQ342.1
引用信息:
[1]张海洋,郭小炜,宋云鹤等.生物基半芳香族共聚酰胺PA5T/56与脂肪族聚酰胺PA56的性能对比[J].东华大学学报(自然科学版),2024,50(03):39-44.DOI:10.19886/j.cnki.dhdz.2023.0274.
基金信息:
国家重点研发计划(2021YFC2101800);; 中央高校基本科研业务费专项资金(CUSF-DH-T-2023034)