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Influence of corona treatment energy and storage time on the changes of the contact angle of activated polystyrene film

机译:电晕处理能量和储存时间对活化聚苯乙烯薄膜接触角变化的影响

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摘要

Corona treatment was applied to modify surface of general purpose polystyrene (GPPS) film to improve its molecular interaction with lacquers, paints and adhesives. Results of corona treatment unit energy (E_j) effect on changes in the contact angle of the film using water, glycerol, diiodomethane and alpha-bromonaphthalene as well as results of changes in the contact angle occurring during six weeks storage after corona treatment have been presented. The significant influence of Ej on the contact angle changes, especially when tested with water and glycerol (polar liquids) has been found. It turns out from presented results that the wettability suitable for technical purposes can be obtained when Ej values reach ca. 1.2 kJ/m~2. Due to gradual disapperance of the activation process effects, storage time of the tested film can not be longer than 2 weeks.
机译:应用电晕处理来修饰通用聚苯乙烯(GPPS)薄膜的表面,以改善其与清漆,油漆和粘合剂的分子相互作用。提出了电晕处理单元能量(E_j)对用水,甘油,二碘甲烷和α-溴萘的薄膜接触角变化的影响的结果,以及电晕处理后六周存储期间发生的接触角变化的结果。 。已发现Ej对接触角变化的重大影响,尤其是在用水和甘油(极性液体)进行测试时。从给出的结果可以看出,当Ej值达到约3时,可获得适用于技术目的的润湿性。 1.2 kJ / m〜2。由于活化过程的影响逐渐消失,被测薄膜的储存时间不能超过2周。

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