What are the applications of acrylic resin in 3D printing materials?

Acrylic resin has many applications in 3D printing materials, as follows:

Curing 3D printing

Improve printing accuracy: acrylic photosensitive resin is a common material in photocurable 3D printing. It can be cured quickly under illumination, and can realize high-precision printing, and is suitable for manufacturing products with complex shapes and fine structures, such as jewelry, handicrafts, precision mechanical parts, etc. For example, when making miniature models, acrylic resin can clearly show the details of the model.

Improve material properties: By mixing with other resins or additives, the properties of printing materials can be improved. For example, free radical photosensitive resin (acrylic resin) is mixed with cationic resin system (epoxy resin), and the ring-opening reaction of epoxy resin is used to reduce the volume shrinkage caused by acrylic resin polymerization, while maintaining good curing speed and toughness of parts.

Achieve specific functions: the introduction of special functional groups or additives can make acrylic resin have specific functions. If fluorescent agent is added, printing materials with fluorescent properties can be made, which can be used in decoration, safety identification and other fields; Conductive 3D printing materials can be prepared by adding conductive substances, which can be used to manufacture electronic components or circuit substrates.

3D printing coating

Enhance surface performance: As a coating material for 3D printed products, it can improve the surface hardness, wear resistance, corrosion resistance and gloss of products. For example, coating the surface of some 3D printed mechanical parts with acrylic resin coating can reduce the wear of the parts during use and prolong their service life.

Improve the appearance effect: provide rich color choices, so that 3D printed products have better visual effects. Various colors of acrylic resin coatings can be prepared according to needs, which can be used for the surface coating of 3D printed artworks, toys, etc., so as to improve the aesthetics of products.

composite material

As a matrix material, it can be compounded with inorganic fillers and fibers to prepare high-performance 3D printing composites. If it is compounded with carbon fiber, it can improve the strength and rigidity of the material and be used to manufacture parts in aerospace, automobile and other fields; Compounding with ceramic particles can improve the high-temperature resistance and hardness of materials, and is suitable for manufacturing high-temperature parts or molds.

Improve compatibility: by modifying acrylic resin, improve its compatibility with other materials, and make the properties of composite materials more stable. For example, using vinyl silane coupling agent to modify acrylic resin can enhance its compatibility with inorganic whiskers and improve the dispersion uniformity of inorganic whiskers in the resin, so that the composite material has both low shrinkage and high elongation at break.