| 四臂星型尼龙6的合成与表征 |
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| 引用本文： | 付鹏,井琼琼,刘民英,杨韶辉,王玉东,赵清香. 四臂星型尼龙6的合成与表征[J]. 高分子材料科学与工程, 2011, 0(9): 33-35,39 |
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| 作者姓名： | 付鹏 井琼琼 刘民英 杨韶辉 王玉东 赵清香 |
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| 作者单位： | 郑州大学材料科学与工程学院 |
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| 摘 要： | 以2,2,6,6-四丙酸环己酮为四官能团核心,进行己内酰胺的水解开环聚合,合成了四种不同臂长的四臂星型尼龙6,对产物的分子量进行了测定,并对其力学性能和流变行为进行了研究。结果表明,四臂星型尼龙6的分子量随着四丙酸环己酮含量的提高而降低,与相应分子量的线型尼龙6相比,星型尼龙6的拉伸强度和弯曲强度基本保持,冲击强度保持率在75%以上,断裂伸长率最大降低了15%,相对黏度降低了近25%,熔融指数提高了近4倍,平衡转矩降低了75%,表现出了较好的加工流动性。
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| 关 键 词： | 星型尼龙 力学性能 流变行为 尼龙6 |
Synthesis and Characterization of Star-Shaped Nylon 6 with Four Arms |
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| Peng Fu,Qiongqiong Jing,Minying Liu,Shaohui Yang,Yudong Wang,Qingxiang Zhao. Synthesis and Characterization of Star-Shaped Nylon 6 with Four Arms[J]. Polymer Materials Science & Engineering, 2011, 0(9): 33-35,39 |
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| Authors: | Peng Fu Qiongqiong Jing Minying Liu Shaohui Yang Yudong Wang Qingxiang Zhao |
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| Affiliation: | (School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450052,China) |
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| Abstract: | Four kinds of star-shaped nylon 6 samples with different branched-chain length were prepared by the hydrolytic polymerization of ε-caprolactam using 2,2,6,6-tetra(β-carboxyethyl)cyclohexanone as tetrafunctional reactant.The molecular weight of prepared star-shaped nylon 6 was determined by end group titration, and mechanical properties and rheological behavior were also investigated.Compared with linear chain nylon 6 with similar molecular weight,the tensile and bending strength of star-shaped nylon 6 can be maintained,impact strength retention over 75%,elongation at break decreases by 15% maximally,relative viscosity reduces 25%,melting index increases nearly 4 times,balance torque reduces 75%.The prepared star-shaped nylon 6 presents good flow ability. |
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| Keywords: | star-shaped nylon mechanical properties rheological behavior nylon 6 |
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