PBT/PC材料在证件制作中的应用研究

研究了聚对苯二甲酸丁二醇酯(PBT)/聚碳酸酯(PC)合金薄膜材料的透光率、表面张力、表面电阻、碳粉附着力、打印顺畅性等证件行业需求的薄膜材料特性;用PBT/PC合金薄膜材料与聚对苯二甲酸乙二醇酯-1,4环己烷二甲醇酯(PETG)卡基材料在一定温度、压力下层压制证,研究了其最佳层压制证条件,研究了PBT/PC合金薄膜材...

Study on Application of PBT/PC Film in Document Manufacturing

PBT/PC alloys have a great number of excellent properties. In this paper,the characteristics of PBT/PC alloy films were studied,which included light transmittance,surface tension,surface resistance,carbon powder adhesion,printing smoothness and others that are required for document manufacture. The optimum pressing conditions for the PBT/PC alloy films with a PETG-matrix card material were investigated under a certain temperature and pressure. The image quality,peel strength and other properties of the certificate were obtained from the laminates of PBT/PC alloy films with the PETG-matrix card material. The durability of the document was studied through an accelerated aging test,and the image quality,bending and torsion performance,dimensional stability and electrical property of the document after aging were also evaluated. The results indicated that the printing image of the PBT/PC alloy films was clear and firm,and their optimum processing conditions with the PETG-matrix card material were determined to be a temperature of 135 ℃,a pressure of 1.5 MPa and a time of 15~20 s. The obtained document has a clear performance image and firm peeling strength. The accelerated aging test results revealed that the image quality,bending and torsion properties,dimensional stability and electrical properties of the document could meet the requirement of the standard. The certificate can be used for at least 5 years. The PBT/PC alloy films can be used for the production of the document based on the PETG-matrix card material.