Photocurable resins, widely used in 3D printing, UV coatings, printing inks and other fields, their performance core depends on the matrix resin, which acts as the "backbone" component. Recently, industry experts have comprehensively analyzed 6 mainstream matrix resins in the photocurable system, providing authoritative references for enterprise selection.
    As the core of photocurable materials, the molecular structure of matrix resins determines key properties such as product hardness, flexibility and adhesion. Epoxy Acrylate (EA) has become a cost-effective choice for metal protective coatings and high-strength bonding scenarios due to its high hardness, strong adhesion and excellent chemical resistance, but its flexibility is insufficient. Polyurethane Acrylate (PUA) achieves a balance between hardness and flexibility with outstanding impact resistance, and is widely used in 3D printed elastic parts and adhesives for soft materials.
    Polyester Acrylate (PEA) is suitable for wood decoration and plastic surface coatings with its high gloss and medium cost advantages, but its weather resistance and hydrolysis resistance are weak. Polyether Acrylate, with low viscosity and excellent hydrolysis resistance, is the preferred material for humid environments. Silicone Acrylate, known as the "leader" in outdoor weather resistance, can resist ultraviolet rays and high temperatures, and is applicable to outdoor billboard coatings and high-temperature protection of electronic components. Amino Acrylate empowers high-end decorative coatings and printing inks with its high gloss and fast-drying characteristics, but it has poor flexibility and is prone to cracking.
    Performance comparison shows that Epoxy Acrylate has the best hardness and adhesion, Silicone Acrylate is unparalleled in weather resistance, and Polyurethane Acrylate has balanced comprehensive performance. Experts suggest that the core principle for selection is "choose EA for hardness, PUA for flexibility, and Silicone Acrylate for outdoor weather resistance".
    The continuous development of photocurable resin technology is promoting the modification and upgrading of matrix resins. Through the optimization of molecular structure, the performance boundaries of various resins are constantly expanding, injecting momentum into the high-quality development of related industries.

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