Abstract
AbstractIn the present study, an innovative approach to produce hybrid thermoset‐thermoplastic 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 and thermoset composite was evaluated with lap shear strength. The results show that plasma treatment on thermoplastic film can promote polar groups at interface, which has positive effect on increasing wettability and can increase bonding strength by up to 69.7% of co‐cured structure. Meanwhile, increasing the surface roughness of thermoplastic film can also increase bonding strength by 162.9% because of mechanical interlock. Especially, because of low melting temperature of metallocene polypropylene, some fiber bundles in the interface zone were impregnated with molten metallocene polypropylene, resulting in strong bonding strength increased by 266.2% of the resultant co‐cured structure. Based on these results, polyamide 6 film was selected as the best thermoplastic boundary for co‐cured structure. Finally, hybrid thermoset‐thermoplastic was fabricated by injection overmolding of molten polyamide 6 on co‐cured structure, which has high average lap shear strength of around 14.9 MPa.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
