Investigation of the plasma effects on wood after activation by diffuse coplanar surface barrier discharge
| Authors | |
|---|---|
| Year of publication | 2013 |
| Type | Article in Periodical |
| Magazine / Source | European Journal of Wood and Wood Products |
| MU Faculty or unit | |
| Citation | |
| Web | http://download.springer.com/static/pdf/456/art%253A10.1007%252Fs00107-013-0706-3.pdf?auth66=1389446376_aa09eb1b3c9f06f44a39beba7eb23674&ext=.pdf |
| Doi | http://dx.doi.org/10.1007/s00107-013-0706-3 |
| Field | Forestry |
| Keywords | ATMOSPHERIC-PRESSURE; WATER-ABSORPTION; AIR; WETTABILITY; ADHESION; DBD |
| Description | Abstract Sample material from spruce (Picea abies), beech (Fagus sylvatica) and ash (Fraxinus excelsior) with radial and tangential section was treated by diffuse coplanar surface barrier discharge (DCSBD) plasma generated in air at atmospheric pressure. Plasma activated samples exhibited significantly lower water uptake times of 50 mu l droplets and minimal differences in wetting between the two cutting planes (radial and tangential), when compared to the untreated surface. Simultaneously, more uniform spreading of the droplets and increased area of wetting on the activated surface were achieved. The plasma treatment had no effect on the water absorption coefficient of the wood samples. FTIR measurements confirmed the presence of oxygen containing functional groups and structural changes in lignin on the activated wood surface. The minimal heating of the treated samples suggests this method to be applicable to treat heat sensitive wooden materials. |
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