面向自动铺放的预浸料动态黏性实验研究简

 为解决自动铺放过程中预浸料铺贴适宜性问题，以预浸料对模具黏附性及预浸料自身黏附性为考察对象，试制了一套基于剥离实验的动态黏性测试装置，并结合本装置对剥离实验机理加以分析。采用固定其中2种参数，考察第3种参数法研究压力和温度对预浸料与模具及自身黏附性行为的影响。结果表明，2种模式下随着压力的增大，动态刚度值和黏性值均增大；随着温度的升高，动态刚度值降低，黏性值先增大后降低。该研究结果为后续自动铺放工艺研究奠定了理论基础。

Experimental Research on Prepreg Dynamic Tack Based on Automated Placement Process

This paper introduces a set of dynamic tack test equipment based on peel tests, and investigates the adhesion of the prepreg bonding on a rigid mould and with itself, in an attempt to study the bonding suitability of adjacent plies in an automated placement process. The mechanism of the peel test is explained in combination with the equipment. Two parameters are fixed and the third is investigated in the experiment; the method is so designed as to explore the adhesion of the prepreg bonding on the rigid mould and with itself in different pressures and temperatures. The results indicate that the dynamic stiffness and tack increases with the increase of pressure, while the dynamic stiffness decreases but the tack increases initially and then decreases with the increase of temperature in the two modes. This study provides a theoretical foundation for subsequent study of automated placement process.