插层改性锰镁铝水滑石对EVA阻燃及力学性能的影响

摘要

乙烯-醋酸乙烯共聚物（EVA）易燃烧，且燃烧产物含有一氧化碳。采用微波晶化法分别用碳酸根、硬脂酸、硼酸根、十二烷基硫酸根及其混合阴离子合成插层组装的锰镁铝水滑石，FT-IR和XRD结果显示插层组装的样品进行了成功制备。将改性的水滑石分别按5%和20%比例与EVA混合制备成复合材料，并对其进行阻燃性能和力学性能的测定。测试结果表明：插层组装的锰镁铝水滑石有助于提高EVA的阻燃性能，且插层阴离子对EVA的断裂拉伸率及拉伸强度均有不同程度的影响。

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	张晓璐
	丁彤
	王丽丽
	马智

关键词：水滑石插层阻燃 EVA

Abstract：

Ethylene-Vinyl acetate copolymer (EVA) is easy to burn and the combustion products contain large amounts of carbon monoxide. Mn-Mg-Al hydrotalcite-like compound intercalated by the carbonate anions, stearate anions, borate anions, dodecyl sulfonate anions and the mixture of these anions were prepared by microwave crystallization method. FT-IR and X-ray diffraction (XRD) revealed that the samples were synthesized successfully. Then, the modified hydrotalcite and EVA were combined to constitute the composite material, whose flame retardant performance and mechanical properties were further investigated. The results showed that the modified hydrotalcite was favorable to the flame retardant performance of EVA while the varied anions and their mixtures affect the elongation at break and tensile strength of EVA.

Keywords： hydrotalcite； intercalation； flame retardance； EVA

Received 2014-04-28;

Corresponding Authors: 丁彤,E-mail:d_tong@tju.edu.cn。 Email: d_tong@tju.edu.cn

About author: 张晓璐(1987-),女,硕士研究生,主要研究方向为阻燃材料和MCM-41分子筛的研究。

引用本文:

张晓璐, 丁彤, 王丽丽, 马智.插层改性锰镁铝水滑石对EVA阻燃及力学性能的影响[J]. 化学工业与工程, 2016,33(4): 33-37

Zhang Xiaolu, Ding Tong, Wang Lili, Ma Zhi.Effect of Anion-Intercalation Mn-Mg-Al Hydroxides on Flammability and Mechanical Property of EVA Composite[J]. Chemcial Industry and Engineering, 2016,33(4): 33-37

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