DPHPA

AcronymDefinition
DPHPADipentaerythritol-Hydroxy Penta-Acrylate
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References in periodicals archive ?
7 The multifunctional acrylate mixture was made of 20 wt% of polyethylene glycol-400-diacrylate (PEGA), 40 wt% of trimethylolpropane triacrylate (TMPTA), and 40 wt% dipentaerythrytol monohydroxy pentaacrylate (DPHPA).
The monomer solution was a typical formulation used in our stereo-lithographic applications: a mixture of multifunctional acrylate monomers including TMPTA, DPHPA, polyethylene glycol diacrylate with a fluorone dye initiator (DIBF), and an amine coinitiator (NPG).
Photopolymer DPHPA BL036 YEt NPG NVP OA NMP n 1 48.4 29.2 0.1 1.5 16.4 4.4 0.0 1.535 2 48.4 29.2 0.2 1.5 16.3 4.4 0.0 1.535 3 46.9 28.3 0.1 1.5 15.8 4.2 3.1 1.532 TABLE 2: Main parameters fitted from the angular response for chemical compositions 1 and 2 after recording.
A low dye concentration is sufficient to polymerize the polyfunctional DPHPA monomer and obtain a high reticulation.