Autori: Sandu Irina Crina Anca , Brebu Mihai , Luca Constantin, Sandu Ion, Vasile Cornelia

Editorial: Elsevier Science, Brighton, Polymer Degradation and Stability, 80, 1, p.10, 2003.

Rezumat:

Lucrarea prezinta datele termogravimetrice a unor probe din lemn de tei, utilizat ca suport pentru pictura cu o vechime de 100-200 de ani. Se stabilesc in baza datelor termogravimetrice, procesele de imbatranire, schimbarile fizico-stucturale si chimice, care au aparut de-a lungul timpului sub influenta mediului si se propune o metoda de determinare a vechimii prin prelucrarea curbelor DTG. This paper presents thermogravimetric data of some samples of soft lime tree wood from the structure of the supports of old painting 100-200 years old. In order to determine the ageing processes, the physical, structural and chemical changes that have occurred in time under the influence f enviroment have been correlated with thermogravimetric data.

Cuvinte cheie: determinarea varstei lemnului de tei, degradate termica, picturi vechi // thermal degradation, soft wood, wood ageing, conservation status, collapsed wood, old paintings