Overmolded hybrid thermoset‐thermoplastic structures: Experimental study on the bonding strength of co‐curing thermoplastic film onto thermoset composite

Abstract

In the present study, an innovative approach to produce hybrid thermosetthermoplastic structure by means of co-curing technique together with injection overmolding technique is proposed. To make thermoset composite bondable, a thermoplastic film was firstly co-cured on the surface of thermoset composite. Five different types of thermoplastic film were chosen to co-cure with thermoset composite. The bonding strength between thermoplastic film

Application of machine learning methods in the analysis of interface bonding strength for overmolded hybrid thermoset‐thermoplastic composites

“…In our previous research, we conducted lap shear tests on TSC-PA 6 structures under different process parameters and the results are shown in Figure 7. 37 It can be observed that the healing degree exhibits a similar trend to the interface bonding strength. To quantify this trend, the Pearson correlation coefficient (referred to as the correlation coefficient) is utilized to measure the degree of correlation between two variables, X and Y.…”

“…The lap shear strength of TSC-PA 6 structure. 37 T A B L E 3 Orthogonal experimental results of healing degree under different process parameters.…”

“…The co‐cured structure consists of a PA 6 film layer and 12 layers of prepreg. The detailed procedure and process parameters have been described in our previous publication 27 …”

“…The detailed procedure and process parameters have been described in our previous publication. 27 Given the challenges in directly measuring interface temperature distribution during the injection overmolding of TSC-PA 6 structures, and the inherent correlation between interface bonding strength and temperature, it becomes necessary to rely on computational models and numerical simulations, such as FEM, to establish the relationship between interface temperature and bonding strength.…”

Leading-Edge Polymer/Carbonaceous Nano-Reinforcement Nanocomposites—Opportunities for Space Sector

“…In this concern, microwave absorption [150], electrostatic shielding [151], electronics [152], engines [153], and high-end nanocomposites have been designed [154]. In addition to mechanical features [155], low weight [156], sturdiness [157], adhesion [158], and heat resilient properties of nanocarbon nanocomposites [159] have been desirable for commercial scale aerospace applications. Here, nanocarbon dispersion, associations with matrices, and interface formation have been identified as major factors enhancing the aerospace structural characteristics [160].…”