Thermoplastic polymers are one of the most common 3D printing material. Common 3D printing materials include: acrylonitrile-butadiene-styrene plastic (acrylonitrile-butadiene), polylactic acid (PLA), polyamide (nylon) (PA), polycarbonate (PC), polystyrene (PS), polycaprolactone (PCL); polyphenylsulfone (PPSF), thermoplastic polyurethane (elastic rubber), polyether ether ketone (PEEK), etc.
PLA filament is a degradable and environmentally friendly plastic with good printing performance. PLA filament is an ideal 3D printing thermoplastic polymer and has been widely used in education, medical treatment, construction, mold design and other industries. In addition, PLA filament also has good biocompatibility, and PLA modified with hydroxyapatite can be used in the manufacture of tissue engineering scaffolds.
PA filament is a semi-crystalline polymer. After SLS is formed, parts with high specific gravity and high strength can be obtained. The PA used in SLS needs to have high sphericity and particle size uniformity, and is usually prepared by low-temperature pulverization. PA filament composite powder can be prepared by adding inorganic materials such as glass beads, clay, aluminum powder, carbon fiber, etc. The addition of these inorganic fillers can significantly improve certain aspects of performance, such as strength, heat resistance, electrical conductivity, etc., to meet different requirements. The application requirements of the field.
PCL filament is a non-toxic, low-melting thermoplastic. PCL wire is mainly used as a consumable for children’s 3D printing pens. Because of its low molding temperature (80~100°C), has high safety. PCL filament can also improve mechanical properties and biocompatibility by doping with materials such as nano-hydroxyapatite. In addition, PCL materials also have a certain shape memory effect and have certain potential in 4D printing.