Table 2 Transparency and hardness of plain ER and B-doped ER prepared with varying boric acid concentrations.

From: Fabrication and characterization of microfluidic devices based on boron-modified epoxy resin using CO2 laser ablation for bio-analytical applications

Boric acid (%)

0

5

10

15

20

Transparency (%)

99.6

98.4

98.0

98.2

96.1

Hardness (HV.)

12.4

16.7

30.5

35.5

41.4

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