Wood–mycelium particles without CNF (100WM)
✓ Reviewed content
White-rot fungus (basidiomycete), undisclosed (Ecovative Design (proprietary)) · University of Maine (US); USDA Forest Products Laboratory (US); Ecovative Design (US)
Recipe
How this sample was made, step by step-
1
Substrate
- 100 wt%
- SPF particleboard particles (spruce/pine/fir) (1.4–3.5 mm; Ecovative Design LLC, Green Island, NY (US))
-
2
Sterilisation
Not reported
-
3
Inoculation
- Fungus
- White-rot fungus (basidiomycete), undisclosed · Ecovative Design (proprietary)
- Inoculum
- Other
-
4
Growth in mould
- Mould
- aluminium forming box 120 × 120 mm; thickness set by stops
-
5
Inactivation & pressing
- Method
- Hot pressing
- Temperature
- 180 °C
- Duration
- 0.25 h
- Pressure
- 0.4 MPa
-
6
Specimen & testing
- Geometry
- panel 120 × 120 mm, thickness 9.4 mm; specimens 3 × 3 cm (water, internal bond), 12 × 3 cm (bending)
- Dry density
- 600 kg/m³
- Measurements
- 3
Steps marked “not reported” were not stated in the source. Suggest missing details
Mycelium grown on SPF particles (group 2), without CNF, hot-pressed.
Measurements
Moisture & water
| Property | Value | n | Test standard | Conditions | |
|---|---|---|---|---|---|
| Water absorption after 24 h immersion | 158 wt% | 8 | ASTM D1037 (2012), modified | edit | |
| Thickness swelling after 24 h | 70 % | 8 | ASTM D1037 (2012), modified | edit |
Thermal
| Property | Value | n | Test standard | Conditions | |
|---|---|---|---|---|---|
| Onset of thermal decomposition (TGA) | 241.9 °C | TGA Hi-Res, N₂, up to 600 °C | measured on the wood–mycelium particles (raw material), not on the panel |
edit |
Production
Substrate mix
Fungus & inoculation
- Fungus
- White-rot fungus (basidiomycete), undisclosed (Ecovative Design (proprietary))
- Inoculum type
- Other
Growth
- Mould / mould material
- aluminium forming box 120 × 120 mm; thickness set by stops
Post-processing
- Inactivation
- Hot pressing
- Inactivation – temperature [°C]
- 180
- Inactivation – duration [h]
- 0.25
- Pressing pressure [MPa]
- 0.4
Specimen
- Specimen geometry
- panel 120 × 120 mm, thickness 9.4 mm; specimens 3 × 3 cm (water, internal bond), 12 × 3 cm (bending)
- Dry density [kg/m³]
- 600
Notes
Components mixed for 2 min in a stand mixer (without CNF: the same amount of water added), cold pre-pressed at approx. 400 kPa (solids content 16 % → 38 %), then hot-pressed at 180 °C for 15 min. Density = target value. The mycelium was grown at Ecovative in a proprietary process and dried at 43 °C.
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