单环氧化合物接枝改性PA6材料的制备及其性能研究

doi:10.19491/j.issn.1001-9278.2019.06.001

中国塑料 ›› 2019, Vol. 33 ›› Issue (6): 1-7.DOI: 10.19491/j.issn.1001-9278.2019.06.001

• 材料与性能 • 下一篇

单环氧化合物接枝改性PA6材料的制备及其性能研究

龚继辽,文健,刘滨滨,熊其鹏,吴叔青

华南理工大学材料科学与工程学院

收稿日期:2019-02-15 修回日期:2019-03-25 出版日期:2019-06-26 发布日期:2019-07-26

Preparation and Properties of Monoepoxy Compound-grafted Polyamide 6

Received:2019-02-15 Revised:2019-03-25 Online:2019-06-26 Published:2019-07-26

摘要/Abstract

摘要： 利用反应挤出法制备了聚酰胺6（PA6）接枝新癸酸缩水甘油酯（GND）改性材料，通过红外光谱分析对改性产物的分子结构进行了测试，并对改性材料的结晶性能、流变性能和力学性能等进行了研究。结果表明，单环氧化合物能够在挤出过程中与PA6发生接枝反应，生成支化PA6产物；接枝链降低了PA6的结晶速率和结晶度，在宏观上相应地表现出材料力学性能的变化；GND最佳用量范围为1~3份，当其用量为1份时，相对于纯PA6，支化PA6的拉伸强度降低了8 %，断裂伸长率和缺口冲击强度分别提高了161 %和35 %。

Abstract: Polyamide 6 (PA6) was grafted with a monoepoxy compound, glycidyl neodecanoate (GND), through reactive extrusion. The molecular structure of grafted PA6 was characterized by infrared spectroscopy, and its crystalline, rheological and mechanical properties were also investigated. The results indicated that GND could well react with PA6 to form branched PA6 copolymers. The branched chains reduced the crystallization rate and crystallinity degree of PA6, resulting in a change in the mechanical properties of grafted PA6 accordingly. The optimum dosage of GND was found to be in the range of 1~3 phr. There was a decrease in tensile strength by 8 % when 1 phr of GND was grafted into PA6. On the other hand, the elongation at break and notched impact strength increased by 161 % and 35 % compared to those of pure PA6, respectively.

龚继辽文健刘滨滨熊其鹏吴叔青. 单环氧化合物接枝改性PA6材料的制备及其性能研究[J]. 中国塑料, 2019, 33(6): 1-7.

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单环氧化合物接枝改性PA6材料的制备及其性能研究

Preparation and Properties of Monoepoxy Compound-grafted Polyamide 6

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