Table 3.

Techniques and properties enhanced in polymer composites.

Technique	Materials	Enhancement in Properties	Reference
Large Format Additive Manufacturing (LFAM)	Acrylonitrile Styrene Acrylate (ASA)	Higher performance of the CF loaded composite compared to the raw ASA polymer (i.e., the 20 wt % CF composite shows a 350% increase in flexural Young’s modulus and a 500% increment in thermal conductivity compared with neat ASA).	[102]
FDM	Polypropylene	The results showed the potential of the FDM to compete with conventional techniques, especially for the production of small series of parts/components; also, it was showed that this technique allows the production of parts with adequate mechanical performance and, therefore, does not need to be restricted to the production of mockups and prototypes	[104]
Digital Light Synthesis	Functionalized silica nanoparticles suspended in a poly(dimethylsiloxane) matrix	The border of printability at standard temperature and pressure (STP) is established by resin with a silica nanoparticle mass fraction of 0.15.	[108]
Multi-nozzle additive manufacturing system	Sandwich pad with soft and hard material structure	A finer printing performance than a traditional FDM machine is achieved.	[109]
Multimaterial Stereolithography	3D printed multi-chip module with an on-package enhanced dielectric lens for mm-wave applications	The ability to 3-D print multiple materials of different dielectric constants at optical resolutions enables the formations of entirely new structures to be integrated into system-on-package solutions for mm-wave applications.	[110]
Multimaterial additive manufacturing	A new multifunctional compliant joint for unibody robotic mechanisms.	It offers interesting performances while being compact and MR-compatible	[111]