Flow of nanofluids through porous media: Preserving timber with colloid science

- Silica nanofluids of various size, charge and concentration are passed through pine.
- We find the effective pore size for flow through Scots pine to be 1.75-3.0 μm.
- Interactions of nanofluids with charged groups within the flow paths are discussed.
- Flow data and interactions are rationalised with AFM and contact angle measurements.