Welding of thermoplastics by means of carbon-nanotube web

Abstract

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Thermoplastic Composites and Their Promising Applications in Joining and Repair Composites Structures: A Review

“…For these reasons, the authors believe this setup can be an interesting alternative to the traditional heating elements if the temperature uniformity could be improved. To overcome this shortcoming, Russello et al [ 102 ] successfully welded thermoplastic PEEK films using embedded layers of Carbon Nanotube web between two PEEK films, obtaining 96% of the strength of the pristine material in mechanical tensile tests. The temperature uniformity was also pointed by Murray et al [ 43 ] to affect the joint strength when welding TPC lap shear coupons by resistance welding.…”

A tailored heating element for resistance welding of complex shaped joining surfaces

“…6 Newer approaches consider heating elements with carbon nanotubes as a conductor either in form of an additive to polymers or as a directly contacted web. 10,11 A geometrically more flexible heating element can be generated by printing conductive silver-ink. 12 While welding carbon fiber reinforced parts, special attention must be paid to the fact that the parts to be joined are themselves electrically conductive.…”

“…6 Newer approaches consider heating elements with carbon nanotubes as a conductor either in form of an additive to polymers or as a directly contacted web. 10,11 A geometrically more flexible heating element can be generated by printing conductive silver-ink. 12…”

Development of heating elements based on conductive polymer composites for electrofusion welding of plastics

“…Such composites are very promising for many applications including heating elements 12 . However, most studies were performed using thermosetting polymers, such as, epoxy resin, 19,20,22,23 PDMS, 24,25 PBI 18 and others, while there are few works on thermoresistor composites based on thermoplastic polymers 13,14,26–28 . Thus, the development of composite materials based on thermoplastic polymers is an urgent task.…”