塑料工业2024,Vol.52Issue(10) :150-156,162.DOI:10.3969/j.issn.1005-5770.2024.10.022

复配成核剂改性尼龙6的结晶行为和力学性能

Crystallization Behaviors and Mechanical Properties of Nylon 6 Modified by Compound Nucleating Agents

董亚鹏 赵恬娇 王美珍 郝新宇 张岩丽 张可欣 王波
塑料工业2024,Vol.52Issue(10) :150-156,162.DOI:10.3969/j.issn.1005-5770.2024.10.022

复配成核剂改性尼龙6的结晶行为和力学性能

Crystallization Behaviors and Mechanical Properties of Nylon 6 Modified by Compound Nucleating Agents

董亚鹏 1赵恬娇 1王美珍 1郝新宇 1张岩丽 1张可欣 1王波1
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作者信息

  • 1. 太原科技大学化学工程与技术学院,山西 太原 030024
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摘要

本文使用芥酸酰胺与褐煤蜡酸钙成核剂(TMN-102)复配制备复配型成核剂(TMN-102E)以期达到促进TMN-102在尼龙 6(PA6)中的分散并研究了复合体系的结晶行为和力学性能.结果表明,TMN-102 与芥酸酰胺的复配未改变TMN-102的分子结构.TMN-102 可以显著加快PA6 的等温和非等温结晶速率,在同一降温速率下的结晶温度和结晶度随着TMN-102 的添加而提高.同时,随着TMN-102 的添加,样品的非等温结晶活化能降低.这说明TMN-102 可以作为PA6 的有效成核剂提高其结晶性能.另外,与TMN-102E在PA6 基体中的分散性大幅改善,这一改善也使其拥有比TMN-102 更优异的成核效果.最后,TMN-102 的添加可以通过提高PA6 晶体完善程度的方式提高其缺口冲击强度和拉伸强度,且随着TMN-102E在PA6 基体中均匀分散这一提高更加明显.

Abstract

The calcium lignite wax nucleating agent(TMN-102)was physically blended with the erucic acid amide to obtain compound nucleating agent(TMN-102E)to promote the dispersion of TMN-102 in nylon 6(PA6)and investigate the crystallization behaviors and mechanical properties of the compound systems.The results show that the molecular structure of TMN-102 is not changed after physically blended with the erucic acid amide.TMN-102 could significantly accelerate the isothermal and non-isothermal crystallization rates of the PA6,and the crystallization temperature and crystallinity increase with the addition of TMN-102 at the same cooling rate.Meanwhile,the non-isothermal crystallization activation energies of the samples decrease with the TMN-102 addition,which indicates that TMN-102 could serve as an effective nucleating agent for PA6 to improve its crystallization properties.In addition,because of the significant improvement of the dispersibility of TMN-102E in the PA6 matrix,TMN-102E has more excellent nucleation effect than that of TMN-102.Finally,the addition of TMN-102 could improve the notch impact strength and tensile strength of PA6 by improving the crystal perfection,and this improvement is more obvious with the uniform dispersion of TMN-102E in the PA6 matrix.

关键词

复配成核剂/尼龙6/结晶行为/力学性能

Key words

Compound Nucleating Agent/Nylon 6/Crystallization Behavior/Mechanical Property

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基金项目

山西省科技成果转化引导专项(202204021301061)

山西省高等学校科技创新项目(2023L421)

山西省专利转化专项计划(20240001)

出版年

2024
塑料工业
中蓝晨光化工研究院有限公司

塑料工业

CSTPCDCSCD北大核心
影响因子:0.685
ISSN:1005-5770
参考文献量13
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