化学镀法制备电磁屏蔽聚酯织物的研究

为开发具有电磁屏蔽作用的织物，采用化学镀法制备了具有电磁屏蔽性能的聚酯类化纤织物，并研究了化学处理方法——碱减量处理对涤纶织物表面化学镀层的性能及化学镀后织物的电磁屏蔽性能的影响。研究表明，在20g/LNaOH溶液中处理既可使纤维表面形成微观凹坑，增大比表面积，又可改非极性的疏水表面为亲水表面，提高表面活性，提高敏化和活化时金属离子和金属在纤维表面的吸附性，在化学镀过程中使基体与金属形成平整的结合。碱减量处理2～3h有利于提高镀层与织物结合牢度，并使镀层光亮均匀，电磁屏蔽性能更加优异。

Preparation and properties of electromagnetic interference shielding poly(ethylene terephthalate) fabrics by the electroless deposition method

The electroless deposition method has been employed to metallize poly(ethylene terephthalate)(PET) fabrics for electromagnetic interference shielding.The surface etching of PET fabrics by 20 g/L NaOH was evaluated,and its effects on electroless deposition properties were investigated.The morphology and thickness of the deposition layer were determined by scanning electron microscopy.The adhesion between the deposition and fabric was also studied by wet grinding experiments.Although the deposition layer is bright,uniform and has good adhesion to the PET fabric substrate using conventional surface treatments,alkali pre-treatment for 2 to 3 hours results in firmer adhesion between the deposition and fabric and thus improves the wearing properties.