Effects of corona treatment on surface properties of co‐extruded transparent polyethylene film,Polymer Engineering and Science

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Effects of corona treatment on surface properties of co‐extruded transparent polyethylene film
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2021-02-17 , DOI: 10.1002/pen.25663
Bidhan Das ₁ , Debabrata Chakrabarty ₂ , Chandan Guha ₃ , Saswata Bose ₃

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Current study encompasses that the effect of corona treatment on the outer surface of transparent co‐extruded polyethylene films was at various levels by applying different wattages, in tandem with the blown film extrusion process. A maximum treatment of 42 dynes/cm was achieved at 4.5 KW of applied wattage. The heat seal joint strength of the films sealed at different combinations of treated/untreated surfaces was evaluated and an untreated/untreated surface combination was found to exhibit maximum strength (2.8 kgf/25 mm), while a treated/treated surface combination showed the minimum (1.41 kgf/25 mm) under identical conditions of sealing and testing. The peel adhesion to ascertain the treatment level on the treated surfaces was inspected by a standard Scotch tape method, and the results exhibited a linear relationship between the applied wattage and the pulling force of adhesion. The Fourier transform infrared spectroscopy (FTIR) spectra of the treated and untreated film samples in an attenuated total reflection (ATR) mode showed the peaks' characteristics mostly of polyolefin films. The morphologies of the treated surfaces displayed relatively rough surface compared to the untreated one. The barrier properties of the treated films in respect of water vapor and oxygen transmission rate do not undergo any appreciable change.

中文翻译：

电晕处理对共挤透明聚乙烯薄膜表面性能的影响

当前的研究包括电晕处理对透明共挤出聚乙烯薄膜外表面的影响，通过与吹塑薄膜挤出工艺相结合，通过施加不同的瓦特数，可以达到不同的水平。在施加功率4.5 KW时，最大处理量为42达因/厘米。评价在不同处理/未处理表面组合下密封的薄膜的热封接头强度，发现未处理/未处理表面组合显示最大强度（2.8 kgf / 25 mm），而处理/处理表面组合显示最小强度。（1.41 kgf / 25 mm）在相同的密封和测试条件下进行。通过标准的透明胶带法检查以确定在处理过的表面上的处理水平的剥离粘合力，结果表明，施加的瓦数与附着力之间呈线性关系。经处理和未经处理的薄膜样品在衰减全反射（ATR）模式下的傅立叶变换红外光谱（FTIR）光谱显示出大多数聚烯烃薄膜的峰特征。与未处理的表面相比，处理过的表面的形态显示出相对粗糙的表面。在水蒸气和氧气透过率方面，处理过的薄膜的阻隔性能没有任何明显的变化。与未处理的表面相比，处理过的表面的形态显示出相对粗糙的表面。在水蒸气和氧气透过率方面，处理过的薄膜的阻隔性能没有任何明显的变化。与未处理的表面相比，处理过的表面的形态显示出相对粗糙的表面。在水蒸气和氧气透过率方面，处理过的薄膜的阻隔性能没有任何明显的变化。

更新日期：2021-02-17

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