Collaborative Research: Plasma Polymerization of Acetylene

这项工作的目标是将乙炔等离子体的组成与沉积等离子体聚合乙炔薄膜所用的工艺变量联系起来。然后将这些薄膜作为橡胶与金属粘接的粘合剂进行研究。等离子体成分还与诸如附着力、附着力耐久性和缓蚀等膜性能有关。等离子体聚合乙炔薄膜是在微波反应器中使用Ar或其他惰性气体作为载气在钢衬底上沉积的。薄膜的成分和形貌可以通过外部变量来控制，如功率、压力、单体流量和衬底的射频偏压。等离子体成分由残余气体分析(RGA)、光学发射光谱(OES)和飞行时间质谱仪(TOFMS)确定。用反射吸收红外光谱(RAIR)、X射线光电子能谱(XPS)、变角椭圆偏振光谱(VASE)和原子力显微镜(AFM)对薄膜进行了表征。膜性能通过电化学阻抗谱(EIS)、断裂力学测试和工业测试方法来确定。这是代顿大学(等离子体表征)、辛辛那提大学(等离子体聚合和膜表征)、固特异轮胎和橡胶公司(膜特性)和墨西哥国立自治大学(腐蚀抑制)共同合作的结果。

The goal of this effort is to relate the composition of acetylene plasmas to processing variables used in depositing plasma-polymerized acetylene films. These films are then investigated as adhesives for rubber-to-metal bonding. Plasma composition is also correlated with such film properties as adhesion, durability of adhesion, and corrosion inhibition. Plasma-polymerized acetylene films are deposited onto steel substrates in a microwave reactor using argon or other inert gases as carrier gases. The composition and morphology of the films are controlled through external variables such as power, pressure, monomer flow rate, and RF bias of the substrate. Plasma composition is determined by residual gas analysis (RGA), optical emission spectroscopy (OES), and time-of-flight mass spectroscopy (TOFMS). Films are characterized using reflection-absorption infrared spectroscopy (RAIR), X-ray photoelectron spectroscopy (XPS), variable-angle spectroscopic ellipsometry (VASE), and atomic force microscopy (AFM). Film properties are determined with electrochemical impedance spectroscopy (EIS), fracture mechanics tests, and industrial test methods.This is a collaboration involving the University of Dayton (plasma characterization), the University of Cincinnati (plasma polymerization and film characterization), the Goodyear Tire and Rubber Company (film properties), and the Autonomous National University of Mexico (corrosion inhibition).