Table 1 Details of the foam samples’ composition.

From: A sustainable acoustic customization of open porous materials using recycled plastics

Sample ID

Alginate

Glycerol

Total microplastics

PET powder

PET flakes

PS powder

[w/v%]

[mL]

[g]

[g]

[g]

[g]

1

1.4

0.0

3.0

3.0

0.0

0.0

2

1.6

0.0

3.0

3.0

0.0

0.0

3

1.8

0.0

3.0

3.0

0.0

0.0

4

2.0

0.0

3.0

3.0

0.0

0.0

5

1.4

0.8

3.0

3.0

0.0

0.0

6

1.4

1.6

3.0

3.0

0.0

0.0

7

1.4

3.2

3.0

3.0

0.0

0.0

8

1.4

0.0

3.0

0.0

0.0

3.0

9

1.4

0.0

3.0

0.5

0.0

2.5

10

1.4

0.0

3.0

1.0

0.0

2.0

11

1.4

0.0

3.0

2.0

0.0

1.0

12

1.4

0.0

3.0

2.5

0.0

0.5

13

1.4

0.0

3.0

2.0

1.0

0.0

14

1.4

0.0

3.0

1.5

1.5

0.0

15

1.4

0.0

3.0

1.0

2.0

0.0

16

1.4

0.0

3.0

0.5

2.5

0.0