Akademik Veri Yönetim Sistemi
InternatIonal Congress on InnovatIon TechnologIes & EngIneerIng, İzmir, Türkiye, 2 - 04 Eylül 2022
As well known, epoxy acrylate resins have been widely
used in 3D SLA printer applications. Epoxy acrylate systems have generally
consisted of bisphenol-A glycerolate diacrylate (epoxy acrylate resin) and
1,6-Hexanediol diacrylate (HDDA, reactive diluent resin) in various weight
percents. The purpose of this study is to develop novel epoxy acrylate systems
without HDDA and investigate their properties. For this reason, two different
reactive resins were used instead of HDDA in epoxy acrylate systems with various
weight percents. One of these resins was urethane acrylate resin that was
synthesized in our laboratory. Urethane acrylate resin was synthesized using
monomeric aliphatic diisocyanate (commercial name; Desmodur H) and
2-Hydroxymethyl methacrylate (HEMA). The other reactive resin was mixture of
silicone acrylate and photoinitiator (commercial name; TEGO RC 1002). These
resins were added into epoxy acrylate resin in various weight percent such as
20%, 40%, 60% and 80%. Tensile, izod impact, shore-D hardness, taber abrasive,
density and DSC tests were applied to these produced samples. Considering of
the results, urethane acrylate containing epoxy acrylate system exhibited much
more improved results compared to pure epoxy acrylate system and silicon acrylate
containing epoxy acrylate systems. It also exhibited more enhanced properties
than epoxy acrylate systems with HDDA. It exhibited substantial increases in
terms of tensile strength, modulus and izod impact resistance. Moreover, they
presented more enhanced abrasive resistance. Shore-D hardness values and
densities showed almost no change. This synthesized urethane acrylate reactive
resin can be used in applications that required higher mechanical and abrasive
properties for epoxy acrylate systems of 3D SLA printers.