Additive manufacturing of high-performance vinyl ester resin via direct ink writing with UV-thermal dual curing
نویسندگان
چکیده
Vinyl ester (VE) resin is widely used as a thermosetting polymer for structural materials because of its high mechanical properties and excellent chemical resistance. Using additive manufacturing to produce high-performance VE structures with dimensional scalability material efficiency has gained interest from both research industry, however it challenging due the limitations current techniques. In this work, modified setup direct ink writing (DIW) ultraviolet (UV)-thermal dual curing made compatible commercially available resins thickened by 4 wt% fumed silica fabricate three-dimensional outstanding properties. The in-situ UV during DIW partially solidifies provide shape, subsequent thermal allows degree crosslinking. printed cured nanocomposites have Young’s modulus 3.7 GPa tensile strength approximately 80 MPa, which outperforms conventionally molded neat methyl ethyl ketone peroxide (MEKP) about 10% also indistinguishable same composition. fracture toughness 16% higher than MEKP superior interfacial bonding between infill paths additional toughening, similar Along properties, resolution technique demonstrated printing 100 mm long wrench microscale lattice, thus showing potential in structures.
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ژورنال
عنوان ژورنال: Additive manufacturing
سال: 2021
ISSN: ['2214-8604', '2214-7810']
DOI: https://doi.org/10.1016/j.addma.2021.102180