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首页> 外文会议>MRS meeting >Improvement of Adhesive Strength of Polyacetal by Irradiation of Vacuum Ultra-Violet Light and Deposition of Nanometer-Sized Particles Simultaneously using Laser Ablation
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Improvement of Adhesive Strength of Polyacetal by Irradiation of Vacuum Ultra-Violet Light and Deposition of Nanometer-Sized Particles Simultaneously using Laser Ablation

机译：通过激光烧蚀辐射真空超紫光照射的聚缩醛粘合强度的提高及纳米尺寸颗粒的沉积

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摘要

Polyacetal is a resin which has excellent property. However, polyacetal has a poor adherence property using adhesive material. Therefore, for the improvement of the adhesive strength, simultaneous surface treatments of polyacetal by irradiation of vacuum ultra-violet (VUV) light and deposition of nanometer-sized particles using laser ablation with C, Si and Ti targets were carried out. The surface treatments were carried out with different wavelengths, energies, processing times and substrate locations from normal direction of targets. The targets were irradiated with a pulsed laser from Nd-YAG laser. After surface treatments, tensile test pieces of polyacetal were bonded by epoxide-based adhesive. And, longitudinal shear strengths were measured. As a result, after surface treatment of polyacetal using C target, the highest shear bond strength which is approximately 8 times larger than that of untreated polyacetal sample was measured (5.6 MPa). It was found that increasing functional groups and increasing surface roughness are affecting improvement of the adhesive strength. The improvement of the adhesive strength is also caused by the new-creation of the dangling-bonds on the polymer surface by VUV irradiation and preservation of each dangling-bonds from re-bonding each other by a separation effect of deposited nanometer-sized particles. This method can be expected for new applications of polymers.
机译：聚缩醛是具有优异性质的树脂。然而，聚缩醛使用粘合材料具有较差的粘附性能。因此，为了改善粘合强度，通过激光烧蚀用C，Si和Ti靶进行真空超紫（Vuv）光和纳米尺寸颗粒的粘连，通过释放粘合强度，同时表面处理。用不同的波长，能量，加工时间和衬底位置从靶的正常方向进行表面处理。用来自Nd-YAG激光的脉冲激光照射靶。在表面处理后，通过环氧基粘合剂键合的拉伸试验片。并且，测量纵向剪切强度。结果，在使用C靶的聚缩醛处理聚缩醛后，测量比未处理的聚缩醛样品大约8倍的最高剪切粘合强度（5.6MPa）。结果发现，增加官能团和增加的表面粗糙度正在影响粘合强度的提高。粘合强度的改善也是通过Vuv照射和通过通过沉积的纳米尺寸颗粒的分离效果再粘合的每个悬挂 - 键对聚合物表面上的悬空 - 粘合的新建引起的粘合强度。该方法可以预期聚合物的新应用。

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