FDM rapid prototyping material characteristics

ABS (acrylonitrile-butadiene-styrene copolymer)

ABS physical and chemical properties:

ABS is synthesized from three chemical units of acrylonitrile, butadiene and styrene copolymer, each monomer has different characteristics; acrylonitrile has high strength, thermal stability and chemical stability; butadiene has toughness, Impact resistance; styrene has easy processing, high gloss and high strength. From the morphological point of view, ABS is an amorphous material. The polymerization of three monomers produces a terpolymer with two phases, one is the continuous phase of styrene-acrylonitrile and the other is the dispersed phase of polybutadiene gum. This determines the high temperature resistance, impact resistance and ease of processing of ABS materials. Shrinkage rate is 0.5%

All FDM series products provide ABS as an option, and nearly 90% of FDM prototypes are made of this material. Users report that the prototype of ABS can reach 80% of the molding strength of injection ABS, and its properties, such as heat resistance and chemical resistance, are also similar or equivalent to injection molded parts, and its heat resistance is 93.3 ℃. This makes ABS a widely used material for functional testing.

Typical uses:

Cars (dashboards, tool doors, wheel covers, mirror boxes, etc.), refrigerators, high-strength tools (hair dryers, blenders, food processors, lawn mowers, etc.), telephone housings, typewriter keyboards, Entertainment vehicles (such as golf carts, jet skis, etc.)

PC (polycarbonate)

PC physical and chemical properties:

PC is a non-crystalline engineering plastic, which has particularly good impact strength, thermal stability, gloss, antibacterial properties, flame retardant properties and pollution resistance. PC also has superior optical transparency (visible light transmittance greater than 90%) and high impact strength, excellent thermal stability, creep resistance, cold resistance, good electrical insulation, flame retardancy, etc. characteristic. Shrinkage rate 0.5-0.7%

PC materials can be used on TITAN models. The increased-strength PC is more resistant to strength and load than prototypes made from ABS materials. Many users believe that the prototype produced by PC materials can achieve the strength characteristics of injection molded ABS molded parts, and its heat resistance is 125 ° C.

Typical uses:

Electrical and commercial equipment (computer components, connectors, etc.), appliances (food processors, refrigerator drawers, etc.), transportation industry (front and rear lights of vehicles, dashboards, etc.)

PPSF

PPSF physical and chemical properties:

PPSF has high toughness, heat resistance, and oxidation resistance in various Rapid Prototype materials. It is a new engineering plastic used in TITAN models, with a heat resistance of 207.2 ℃, suitable for working in high temperature environments. PPSF has higher flame retardancy and oxidation resistance than ABS and PC. In addition, PC can also be used for disinfection.

Typical uses:

Many of the above characteristics determine the wide application of PPSF in a variety of industries such as aerospace, medical, automotive, and small home appliance design and manufacturing.