NPGDA

AcronymDefinition
NPGDANoe Ponlyl Glycol Di Acrylate (chemistry)
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14, the viscosity of 1,3/1,4-CHDMDA is ~27 mPa.s, which is higher than HDDA, DPGDA, TPGDA, and 2PO NPGDA, but significantly lower than the alkoxylated cyclohexanedimeth-anol diacrylates (3EO, 5EO, or 5PO CHDMDA).
Table 14: Summary of chemical resistance of 35 micron UV-cured coatings containing diacrylate monomer and photoinitiator applied on polycarbonate Chemicals & stains 1,3/1,4-CHDMDA HDDA TPGDA DPGDA 2PO NPGDA Tap water 0 0 1 0 2 Ethanol 1 0 2 1 2 4% Acetic acid 0 0 1 0 0 Black RIT[R] dye 0 2 3 2 4 5% NaOH 0 0 2 1 1 Yellow mustard 0 1 1 1 1 Betadine[R] 0 0 0 0 0 4% [NH.sup.4]OH 0 1 1 1 4 Total score 1 4 11 6 14 Chemicals & stains 3EO CHDMDA 5EO CHDMDA 5PO CHDMDA Tap water 0 2 1 Ethanol 1 1 2 4% Acetic acid 1 0 2 Black RIT[R] dye 4 5 5 5% NaOH 1 2 1 Yellow mustard 2 2 2 Betadine[R] 2 5 1 4% [NH.sup.4]OH 3 2 3 Total score 14 19 17 Conclusions
Now China can produce generally used monomer products such as TEGDA, DEGDA, PETA, TMPTA, TPGDA, NPGDA, HDDA, PDDA, EOTMPTA and others.