Table 2 Thermal and mechanical properties of the CNPs using M120G as the monolith sheet and acrylic thermosets as the second component.

From: Co-continuous network polymers using epoxy monolith for the design of tough materials

Sample code

Tga

(oC)

Strength at breakb (MPa)

Strain at breakb

(%)

Modulusb

(MPa)

Toughnessc

(kJ/m2)

CNP-T6/A6d

48 [57], 140

7.29

2.28

396

0.94

CNP-T3/A6e

9.8 [21], 150

6.40 ± 1.01

6.07 ± 1.01

207 ± 9.7

2.6 ± 0.84

CNP-T2/A3

[‒ 12]

7.15 ± 1.12

6.08 ± 1.71

210 ± 51

3.0 ± 1.5

CNP-T2/P6

‒ 42 [‒42]

7.25 ± 0.056

5.30 ± 0.13

219 ± 15

2.3 ± 0.04

CNP-P6f.,g

‒ 44, 117

8.00 ± 1.50

9.76 ± 1.94

227 ± 22

5.5 ± 2.0

CNP-P6/A1-10

‒

9.47 ± 0.97

4.18 ± 1.23

356 ± 50

2.5 ± 1.0

CNP-P6/A1-20 h

‒ 50 [‒ 42], 121

12.4 ± 0.67

7.12 ± 0.11

437 ± 26

6.1 ± 0.20

CNP-P6/A1-30

‒

11.3 ± 0.36

5.67 ± 0.61

444 ± 3.2

4.3 ± 0.67

CNP-P6/A1/GA-18/2

‒

7.50 ± 0.71

3.91 ± 1.20

329 ± 65

1.9 ± 0.76

CNP-P2/A1-20

[‒ 28]

4.36 ± 0.54

1.44 ± 0.00

388 ± 26

0.34 ± 0.04

  1. aBased on the tanδ peak temperature of DMA measured at a frequency of 1 Hz and a heating rate of 2 °C/min. Values in bracket indicate Tg values for the bulk thermosets of the second component determined by DMA.
  2. bBased on the tensile test at the rate of 1 mm/min and room temperature. The modulus was determined in the strain range of 0.05–0.25%
  3. cEvaluated based on an area below each stress–strain curve. The toughness values of M120G was 4.4 ± 0.77 kJ/m2.
  4. d The E’ values of CNP-T6/A6 were 1680, 309, and 8.9 MPa at 25, 100, and 180 °C, respectively, determined by DMA.
  5. eThe E’ values of CNP-T3/A6 were 240 and 17.5 MPa at 80 and 180 °C, respectively, determined by DMA.
  6. fM120A was used instead of M120G.
  7. gThe E’ values of CNP-P6 were 3170, 324, and 23.1 MPa at ‒80, 0, and 160 °C, respectively, determined by DMA.
  8. hThe E’ values of CNP-P6/A1-20 were 5530, 839, and 29.6 MPa at ‒80, 0, and 160 °C, respectively, determined by DMA.
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