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What are the commonly used nylon materials for 3D printing?

2024-02-26 15:31

1. Nylon 11
Also known as polyamide 11 (or PA 11). This type of nylon exhibits excellent flexibility and impact strength, making it an ideal material for printing aerospace components and automotive and construction industry conduits. PA 11 is relatively more moisture-proof, so it is more convenient to operate.
2. Nylon 12
The biggest highlight of nylon 12 is its lower melting point compared to other polyamides, making it easier to operate. At the same time, it also has high fatigue resistance and toughness, and is commonly used for snap locks, tools for pressing and inserting, and components that need to withstand huge vibrations.
3. Nylon 6
Nylon 6 is commonly used for FDM printing and has outstanding strength, toughness, and impact resistance. It has better flexibility and curvature than nylon 12.
In addition to these basic types, the combination of nylon and other materials is also popular and can meet different needs. For example, Stratasys and Stratasys Direct can provide highly customized nylon material choices for different printing methods and production requirements. Common combinations include:

Carbon fiber nylon
Carbon fiber filled nylon is the most common composite nylon material. As is well known, it has many advantages similar to standard nylon, including high strength and stiffness. But the components it produces are lighter and more suitable for lightweight tools, functional prototypes, and some end user components.
Glass-filled Nylon 
It is commonly used for SLS printing and has high rigidity and mechanical strength. In addition, fiberglass nylon is usually very tough and has excellent elasticity. It is very suitable for making components that require long-term static load and high temperature conditions, but it is not suitable for making sliding components due to the rough finish.
Mixed aluminum nylon
Also known as nylon aluminum powder, it can present a metallic finish effect, high hardness, and high-quality post-treatment. It is commonly used for SLS printing and can provide high standards of dimensional accuracy, good density and stiffness balance, and thermal conductivity. Mixed aluminum nylon is suitable for hard metal components such as automotive parts, cutting tools, and demonstration models.

 

Flame retardant nylon
It has higher quality than ordinary filled nylon materials because it adds flame retardant components, making it suitable for making customized application components. As a legally recognized flame retardant component, it has passed the combustion smoke toxicity test and can be used in commercial, military, and civilian aircraft interiors. Commonly found in nylon 11 and nylon 12 materials.
Mineral fiber nylon
Also known as HST nylon. This polyamide material is composed of mineral fibers and has a unique combination of strength, heat resistance, and stiffness. It has a clean finish and can be used to express details, making it an ideal material for manufacturing load bearing applications and prototypes that require precise dimensions.