Polyamide (PA), also known as nylon (Nylon), is a high molecular polymer containing amide groups in the repeating units on the main chain of the molecule. Nylon has excellent performance and is widely used. It can be made into various plastics, drawn into fibers, and can also be made into films, coatings, and adhesives. The products can be widely used in clothing, industrial silk, automobiles, machinery, etc. Electronic and electrical, transportation, packaging industry, and many other fields.
Nylon is a high-performance polymer material in traditional industries. In the field of 3D printing, nylon has also become one of the most widely used materials. PA6, PA11, PA12, PA66, etc. often appear in the available materials for 3D printing.
Compared with conventional varieties, special nylons introduced with new synthetic monomers have more excellent properties. Traditions nylon (PA6, PA66, etc.) still has shortcomings such as strong hydrophilicity, high-temperature resistance, poor transparency even after being reinforced, and flame retardant, which limits its application range to a certain extent.
Therefore, in order to improve the shortcomings of conventional nylon and add new properties, generally by introducing new synthetic monomers, a series of special nylons with different properties can be obtained to suit more usage scenarios. These specialty nylons include high-temperature nylons, long carbon chain nylons, transparent nylons, bio-based nylons, and nylon elastomers.
The advantages of nylon 12 are highlighted
Long carbon chain nylon has excellent performance, and nylon 12 has both performance and cost advantages. Nylon with a methylene length of more than 10 between two amide groups in the main chain of nylon molecule is called long carbon chain nylon. The main varieties include nylon 11, nylon 12, nylon 612, nylon 1212, nylon 1012, nylon 1313, etc. .
Nylon 12 is the most widely used long carbon chain nylon. In addition to having most of the general properties of nylon, it has low water absorption, high dimensional stability, high-temperature resistance, corrosion resistance, good toughness, and easy processing. advantage. Compared with PA11, another long carbon chain nylon material, the price of butadiene, the raw material of PA12, is only on- third of that of castor oil, which is the raw material of PA11. It can be used in most scenarios instead of PA11. Pipes, submarine cables, 3D printing, and many other fields have a wide range of applications.
Nylon 12 material excels in 3D printing.
Compared with other materials, PA12 powder has excellent characteristics such as high fluidity, low static electricity, low water absorption, moderate melting point, and high dimensional accuracy of products. Fatigue resistance and toughness can also satisfy workpieces requiring higher mechanical properties, so nylon 12 has gradually become an ideal material for 3D printing of engineering plastics.
In recent years, my country has also continuously introduced policies to encourage the development of the unique nylon industry, and actively promote the localization of unique nylon materials. With the help of policies, domestic enterprises will continue to rise to the challenge and are expected to break the monopoly of nylon 12.