Table 2 Electrochemical parameters corresponding to the electrochemical impedance spectrum of the epoxy coatings with different added amounts of microcapsules.

From: Properties and corrosion resistance mechanism of a self-healing octadecyl amine loaded ethyl cellulose microcapsule coatings loaded with epoxy resin

Amount of microcapsules added

CPE1(µF/cm2)

Rp(Ω/cm2)

CPE2(µF/cm2)

Rct(Ω/cm2)

Error bar(%)

0%

1.68 × 10− 6

3.17 × 104

1.62 × 10− 7

5.23 × 104

1.82

3%

2.73 × 10− 6

4.25 × 104

1.25 × 10− 7

3.52 × 105

6.38

6%

2.65 × 10− 9

7.58 × 104

3.51 × 10− 8

2.68 × 106

1.89

9%

3.58 × 10− 7

5.27 × 104

9.17 × 10− 8

5.83 × 105

4.30

12%

8.96 × 10− 8

6.59 × 104

8.63 × 10− 8

8.17 × 105

1.98

15%

2.05 × 10− 6

3.75 × 104

1.59 × 10− 7

2.17 × 105

9.72

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