Synthesis and characterization of tung oil-based UV curable for three-dimensional printing resins.

RSC Adv · 2022 · PMC9364080 · PMID 36043097

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an increasing trendno p-value reported

2(c) : as the amount of formic acid is added, the epoxy value shows at first an increasing trend and then decreasing, and the epoxy value reaches the maximum when the amount of formic acid added (the mass percentage of tung oil) is 20%.

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