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3D printing using PA12 nylon (SLS and MJF)

Trunnano 3D Printing Podwer

Nylon (also known as polyamide or PA) is a stretchy and strong material that most people encounter almost daily. It is used in sportswear because it makes the textile stronger. It is used in trunk hubs because of its wear resistance. It is a housing for the car’s intake manifold and electronics because it’s durable, lightweight, and heat-resistant. Nylon PA12 is even biocompatible, so you’ll find it used in orthopaedic products such as 3D-printed casts and braces.

(Nylon powder 3d printing)

 

 

Used by manufacturers for nearly a century, nylon has become a familiar and reliable choice for 3D printing and is the most commonly used plastic in additive manufacturing, especially when you look at the kilograms sold.

Nylon is easy to process because of its low melting point, yet it yields impressive mechanical properties in 3D printing. The material is chemically resistant, dimensionally stable, and not prone to stress cracking, all of which have led to many applications for practical prototypes and end-use parts such as jigs and fixtures, spare parts, automotive parts, sports equipment, and more.

What is PA12 nylon?

Why 12? PA12 stands for polyamide 12 and is a thermoplastic polymer belonging to the polyamide or nylon family. It is a polymerization of 12-amino dodecanoic acid or laurellactam molecules. Polymerization is a chemical process in which small molecules (called monomers) combine to form larger, more complex structures (called polymers).

Having 12 molecules doesn’t necessarily make PA12 stronger than PA11 or PA6 (the other two common nylons used in 3D printing), but it does give it some different properties. Generally speaking, PA6 is usually chosen for its high strength and stiffness, while PA11 is chosen for its flexibility and chemical resistance. PA12 generally falls between strength, toughness, and chemical resistance properties, making it the most popular nylon.

What colour does nylon come in?

Nylon is usually grey or black but can also be found in white, which is the best option for adding colour. This material is easily tinted in post-processing, typically using DyeMansion’s tinting machine, but you can also paint it.

(Nylon powder 3d printing)

Sustainability & Recycling PA12 Nylon

As with any powder bed fusion process, there is a large amount of unused or leftover material in every 3D printing run. Fortunately, PA12 can be melted and reprocessed multiple times without significantly reducing its performance. This means your leftover powder can all be thrown back into the hopper and used for your next print, but not always without some fresh, unused powder mixed in. There is also a limit to how often you can reuse the same powder before part quality is compromised.

If you are 3D printing PA12 parts that will be in a regulated industry or meet certification standards, you may not be able to use only 100% virgin powder. However, depending on the required mechanical properties of the part, you can achieve 100% reuse; however, 60%-70% reuse is more typical.

Reducing the mix percentage (or refresh rate) should reduce the overall cost of 3D printing, which is especially important as manufacturers focus on many parts. But remember that refresh rate isn’t just a significant issue; your printer can affect refresh rate, too.

The application fields of nylon powder 3D printing mainly include the following aspects

Automotive industry: Nylon powder 3D printing can be used to manufacture electrostatic safety parts for the automotive industry, such as electronic casings and automotive parts.

(Nylon powder 3d printing)

Electronics industry: Nylon powder 3D printing can manufacture tools and testers in electronic production, etc.

(Nylon powder 3d printing)

Mechanical manufacturing: Because nylon powder 3D printed parts have good mechanical properties, they can manufacture various mechanical parts, such as bearings, gears, pump blades, etc.

(Nylon powder 3d printing)

Fashion industry: Nylon powder 3D printing can produce personalized clothes, shoes and other fashion items.

(Nylon powder 3d printing)

Daily necessities: Nylon powder 3D printing can make various personalized accessories, such as mobile phone cases, rings, etc.

Supplier

Luoyang Tongrun Nanotechnology Co, Ltd., as a global chemical material purveyor and manufacturer with over 12 years of experience, is highly trusted for providing high-quality chemicals and nanomaterials such as graphite powder, zinc sulfide, nitride powder, calcium nitride, Ca3N2, 3D printing powder, concrete foaming agent, etc.

We usually transport our goods using DHL, TNT, UPS, and FedEx.You can choose T/T(USD), Western Union, Paypal, Credit card, Alipay or Alibaba trade insurance for payment. Please inquire if you want to buy a high-quality 3D printing powder; we will help.

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