马来酸衍生物与电晕改性聚乙烯膜表面研究

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徐迪,毛翼斐,姚文志,戴力.马来酸衍生物与电晕改性聚乙烯膜表面研究[J].,2022,62(6):576-581

马来酸衍生物与电晕改性聚乙烯膜表面研究

Research on polyethylene film surface modification by maleic acid derivatives and corona

DOI：10.7511/dllgxb202206004

中文关键词:聚乙烯膜表面能电晕处理马来酸衍生物添加剂

英文关键词:polyethylene film surface energy corona treatment maleic acid derivatives additives

基金项目:河南省重点研发与推广专项(科技攻关)资助项目(222102520043)；河南省高等学校重点科研项目(21A150031)；河南省自然科学基金资助项目(202300410273)；华北水利水电大学高层次人才启动项目(4001/405904001/40591).

作者	单位
徐迪,毛翼斐,姚文志,戴力

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中文摘要:

聚乙烯是非极性材料，表面能比较低(30~32 mN/m)，聚乙烯膜表面改性的目的是在膜表面引入极性基团，提高膜表面的粗糙度，消除弱界面层，提高膜表面能．合成了3种马来酸衍生物添加剂，研究了它们对聚乙烯膜表面能的影响，并通过温和电晕的方式(输出电压50 V)使掺入添加剂的聚乙烯膜表面能提升至40~42 mN/m后，通过老化、乙醇擦拭、温度影响、PE-PET覆膜剥离实验、AFM等方法研究了影响表面能的多种因素．在马来酸衍生物与温和电晕共同作用下，与纯聚乙烯膜表面能两个月下降至34 mN/m相比，掺入质量分数0.3%的A-C-575A-MPEG2k添加剂时便可稳定聚乙烯膜表面能40 mN/m长达两个月以上，且基本不受极性溶剂的影响．研究发现添加剂的极性基团、结晶行为对表面能的稳定性具有重要影响．

英文摘要:

Polyethylene is non polar material with low surface energy (30 32 mN/m). The purpose of surface modification of polyethylene film is to introduce polar groups on the surface, improve the surface roughness, eliminate the weak interface layer and promote the surface energy of the film. Herein, three kinds of maleic acid derivative additives are synthesized and their effects on the surface energy of polyethylene film are studied. The surface energy of polyethylene film blended with additives is increased to 40 42 mN/m by mild corona (output voltage 50 V). The factors influencing the surface energy are studied by aging, ethanol wiping, temperature effect, PE-PET lamination stripping test, AFM, and so on. Under the combined action of maleic acid derivative and mild corona, compared with that the surface energy of neat polyethylene film decreases to 34 mN/m within two months, the surface energy of polyethylene film is stabilized at 40 mN/m by adding 0.3% (mass fraction) A-C-575A-MPEG2k additive for more than two months, and is not affected by polar solvents. It is found that the polar groups and crystallization behavior of additives have important effects on the stability of surface energy.

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