The area of the TCT Show earlier this month, occupied by 3T RPD, was the source of much interest as it showcased several new materials for 3D printing that were being introduced by the company.
The creation of the not-so-lyrically-named PA 2241 FR is noteworthy because it adds flame retardant nylon to the portfolio of additive manufacturing materials. This will broaden the field of parts that can be produced using additive manufacturing techniques to areas that previously were unable to use the technology because of stringent safety requirements regarding the flame resistance of parts.
The flame retardant material is a polyamide 12 for use in laser sintering systems and works via a halogen-based flame retardant. What this means is that when the material is introduced to the conditions of a fire, it releases halogen, an inert gas, that then depletes the supply of oxygen to the flame and therefore extinguishes it. The fact that the powder is recyclable, meaning that the powder that remains loose and unsintered after part production can be mixed with fresh powder and used in the next sintering process, reduces the overall cost of utilizing the technology for part production. … (Read more)