DMA
trasduttori
test meccanici

Wood interactions

Wood bonding and coating
Properties of the interphase formed when external products, such as adhesives and coatings or finishing products, are applied to wood are evaluated. The characterisations are carried out in several ways: macroscopic (e.g., shear strength, delamination, accelerated ageing, wood failure percentage, fracture energy etc.), microscopic (e.g., penetration, wettability, interphase observation by means of optical and electronic microscopy etc.) and by using indirect analysis procedures (e.g., dynamical mechanical analysis). Considered wood adhesives are of different type, both of natural (e.g., protein based bio-adhesives) and synthetic origin. These latter are both for structural and non-structural use (e.g., epoxy resins, isocyanate-based adhesives, vinyl acetate dispersions etc.). Activities are predominantly carried out by the Laboratory of Chemistry of Wood and Wood products, in cooperation with the Laboratory of Physical and Mechanical tests and with the Laboratory of Wood Anatomy

Wood Chemistry
Activities concern the quantification and identification of wood extractives, and the evaluation of the effects of such substances on relevant technological wood properties (such as natural durability, shrinkage/swelling, wettability, gluing, coating etc.). The effects of wood chemical composition variations (for instance because of natural ageing or environmental interactions) on wood properties are also evaluated. The wood properties evaluated are the mechanical, physical and biological characteristics. Main fields of application include measurements on the retention of preservatives, identification of compounds that wood staves confer to wine, evaluation of the effects of time on mechanical characteristics of ancient wood elements. Activities are predominantly carried out by the Laboratory of Chemistry of Wood and Wood products, in cooperation with the Laboratory of Wood Anatomy and with the Laboratory of Biodegradation and preservation

Consolidation of timber
The efficacy of consolidation and restoration interventions on decayed timber, carried out with various materials (e.g., adhesives, consolidants, impregnants etc.), is evaluated. Fields of application are of both structural (e.g., glued-in rods and laminas, sheets etc.) and non-structural (e.g., artefacts, archaeological findings etc.) type. Activities are predominantly carried out by the Laboratory of Chemistry of Wood and Wood products, in cooperation with the Laboratory of Physical and Mechanical tests and with the Laboratory of Wood Anatomy

team

Benedetto Pizzo (person in charge), Ilaria Santoni, Luigi Fiorentino, Elisa Pecoraro

main publications

Wood bonding and coating
Mader A., Schirò A., Brischetto M., Pizzo B. (2011) “Interactions and penetration of polymers and nanolatexes into wood. An overview”. Progress in Organic Coatings, in press
Pizzo B., Lavisci P., Misani C., Triboulot P., Macchioni N. (2003) “Measuring the shear strength ratio of glued joints within the same specimen”. Holz als Roh- und Werkstoff, 61 (4), 273-280
Pizzo B., Lavisci P., Misani C., Triboulot P. (2003) “The compatibility of structural adhesives with wood”. Holz als Roh- und Werkstoff, 61 (4), 288-290
Lavisci P., Berti S., Pizzo B., Triboulot P., Zanuttini R. (2001) “A shear test for structural adhesives used in the consolidation of old timber”. Holz als Roh- und Werkstoff, 59 (1/2), 145-152

Wood Chemistry
Pizzo B., Pometti C.L., Charpentier J.P., Boizot N. and Saidman B.O. (2011) “Relationships involving several types of extractives of five native argentine wood species of genera Prosopis and Acacia”. Industrial Crops and Products, in press, DOI: 10.1016/j.indcrop.2011.02.003
Pometti C.L., Palanti S., Pizzo B., Charpentier J.P., Boizot N., Resio C. and Saidman B.O. (2010) “Durability of five native argentine wood species of genera Prosopis and Acacia decayed by rot fungi and its relationship with extractive content”. Biodegradation, 21 (5), 753-760, DOI: 10.1007/s10532-010-9340-5
Pizzo B., Giachi G., Fiorentino L. (2010) “Evaluation of the applicability of conventional methods for the chemical characterization of waterlogged archaeological wood”. Archaeometry, 52 (4), 656-667, DOI: 10.1111/j.1475-4754.2009.00490.x
Palanti S., Pizzo B., Feci E., Fiorentino L., Torniai A.M. (2010) “Nutritional requirements for larval development of the dry wood borer Trichoferus holosericeus (Rossi) in laboratory cultures”. Journal of Pest Science, 83 (2), 157-164, DOI: 10.1007/s10340-009-0282-9

Consolidation of timber

Pizzo B., Garabelli G., Varetto M., Brancati L.E., Locandieri M., Pecoraro E., Macchioni N. (2011) “On site consolidation of burnt and partially charred wood in dry conditions”. Journal of Cultural Heritage, 12 (1), 19-27, DOI: 10.1016/j.culher.2010.09.003
Giachi G., Capretti C., Macchioni N., Pizzo B., Donato I.D. (2010) “A methodological approach in the evaluation of the efficacy of treatments for the dimensional stabilisation of waterlogged archaeological wood”. Journal of Cultural Heritage, 11 (1), 91-101, DOI: 10.1016/j.culher.2009.04.003
Lavisci P., Pizzo B., Gagliano J.M., Triboulot P., De Ciechi M. (2003) “Fracture energy testing of thick joints with structural wood adhesives”. Holz als Roh- und Werkstoff, 61 (5), 355-357
Lavisci P., Berti S., Pizzo B., Triboulot P., Zanuttini R. (2001) “A delamination test for structural wood adhesives used in thick joints”. Holz als Roh- und Werkstoff, 59 (1/2), 153-154

[Last updated on: 02-11-2015]
Navigando il sito ivalsa.cnr.it acconsenti all'utilizzo dei Cookie. Per maggiori dettagli.