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首页> 美国卫生研究院文献>Polymers >Comparison of Adhesive Properties of Polyurethane Adhesive System and Wood-plastic Composites with Different Polymers after Mechanical Chemical and Physical Surface Treatment
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Comparison of Adhesive Properties of Polyurethane Adhesive System and Wood-plastic Composites with Different Polymers after Mechanical Chemical and Physical Surface Treatment

机译：机械化学和物理表面处理后的聚氨酯胶粘剂体系和具有不同聚合物的木塑复合材料的胶粘性能比较

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摘要

The cost of most primary materials is increasing, therefore, finding innovative solutions for the re-use of residual waste has become a topic discussed more intensely in recent years. WPCs certainly meet some of these demands. The presented study is focused on an experimental analysis of the effect of surface treatment on the adhesive properties of selected WPCs. Bonding of polymer-based materials is a rather complicated phenomenon and modification of the bonded area in order to improve the adhesive properties is required. Two traditional types of surface treatments and one entirely new approach have been used: mechanical with sandpaper, chemical with 10 wt % NaOH solution and physical modification of the surface by means of a MHSDBD plasma source. For comparison purposes, two high-density polyethylene based products and one polyvinyl-chloride based product with different component ratios were tested. A bonded joint was made using a moisture-curing permanently elastic one-component polyurethane pre-polymer adhesive. Standardized tensile and shear test methods were performed after surface treatment. All tested surface treatments resulted in an improvement of adhesive properties and an increase in bond strength, however, the MHSDBD plasma treatment was proven to be a more suitable surface modification for all selected WPCs.
机译：大多数主要材料的成本正在增加，因此，寻找创新的解决方案来重新利用残余废物已成为近年来讨论的话题。 WPC当然可以满足其中的一些要求。提出的研究集中在表面处理对所选WPC粘合性能影响的实验分析上。聚合物基材料的粘结是相当复杂的现象，并且需要改变粘结面积以改善粘结性能。已经使用了两种传统类型的表面处理和一种全新的方法：使用砂纸进行机械处理，使用10 wt％NaOH溶液进行化学处理以及通过MHSDBD等离子源对表面进行物理修饰。为了比较，测试了两种具有不同组分比的高密度聚乙烯基产品和一种聚氯乙烯基产品。使用湿固化永久弹性的单组分聚氨酯预聚物粘合剂制成粘合接头。表面处理后进行标准化的拉伸和剪切测试方法。所有测试的表面处理均改善了粘合性能并提高了粘合强度，但是，事实证明，MHSDBD等离子处理对于所有选定的WPC而言都是更合适的表面改性方法。

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