[article] in Annales de l'Ecole nationale des eaux et forêts et de la station de recherches et expériences forestières > Vol. 4 n° 1 (01/10/1931) . - p. 083-107 | Titre : | Recherches sur les bois bakélisés. - I. Propriétés physiques et mécaniques. - II. Etude microscopique | | Type de document : | texte imprimé | | Auteurs : | J. Campredon, Auteur ; R.C. Rol, Auteur | | Année de publication : | 1931 | | Article en page(s) : | p. 083-107 | | Langues : | Français (fre) | | Catégories : | Autres descripteurs
BOIS TECHNOLOGIE ; ETUDE MICROSCOPIQUE
Liste Plan de classement
841.25 (Procédés par imprégnation (sans pression d'air)) [Classement GFDC]
Thésaurus Agrovoc
Propriété mécanique ; Propriété physicochimique
| | Résumé : | RESEARCHES ON WOODS IMPREGNATED WITH" BAKELITE " - Woods impregnated with "bakelite" possess the followingproperties :They are artificially made old, a little or not at all hygroscopic,and show phenomena of minimum shrinking and swelling;lastly, they possess good insulating qualities.The author calls to mind how the impregnation of wood bybakelite is realised and he shows the results of a very greatnumber of mecanical experiments carried out with the purposeof comparing, all other conditions being equal, sample of naturalwood and of wood impregnated with the synthetic resins. Theseresults are the following :i) Resistance to crushing : the breakage loads are multipliedby a coefficient which varies from 1,5 to 3 without the densityperceptibly increasing.2) Resistance to extension : no change.3) Resistance to flexion is increased by about 1,5.4) Power of resisting shocks : no improvement.5) Hardness : it is from 3,4 to 6 times greater than the hardnessof natural wood.The total of these results explains the multitude of applicationsof bakelised wood.Microscopic study has shown that there is no chemical combinationbut simply partial filling of the cellular cavities. | | En ligne : | https://doi.org/10.4267/2042/33484 | | Permalien de la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=196147 |
[article] Recherches sur les bois bakélisés. - I. Propriétés physiques et mécaniques. - II. Etude microscopique [texte imprimé] / J. Campredon, Auteur ; R.C. Rol, Auteur . - 1931 . - p. 083-107. Langues : Français ( fre) in Annales de l'Ecole nationale des eaux et forêts et de la station de recherches et expériences forestières > Vol. 4 n° 1 (01/10/1931) . - p. 083-107 | Catégories : | Autres descripteurs
BOIS TECHNOLOGIE ; ETUDE MICROSCOPIQUE
Liste Plan de classement
841.25 (Procédés par imprégnation (sans pression d'air)) [Classement GFDC]
Thésaurus Agrovoc
Propriété mécanique ; Propriété physicochimique
| | Résumé : | RESEARCHES ON WOODS IMPREGNATED WITH" BAKELITE " - Woods impregnated with "bakelite" possess the followingproperties :They are artificially made old, a little or not at all hygroscopic,and show phenomena of minimum shrinking and swelling;lastly, they possess good insulating qualities.The author calls to mind how the impregnation of wood bybakelite is realised and he shows the results of a very greatnumber of mecanical experiments carried out with the purposeof comparing, all other conditions being equal, sample of naturalwood and of wood impregnated with the synthetic resins. Theseresults are the following :i) Resistance to crushing : the breakage loads are multipliedby a coefficient which varies from 1,5 to 3 without the densityperceptibly increasing.2) Resistance to extension : no change.3) Resistance to flexion is increased by about 1,5.4) Power of resisting shocks : no improvement.5) Hardness : it is from 3,4 to 6 times greater than the hardnessof natural wood.The total of these results explains the multitude of applicationsof bakelised wood.Microscopic study has shown that there is no chemical combinationbut simply partial filling of the cellular cavities. | | En ligne : | https://doi.org/10.4267/2042/33484 | | Permalien de la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=196147 |
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Ajouter le résultat dans votre panier Faire une suggestion Affiner la recherche Interroger des sources externesL'organisation de la recherche en France / R.C. Rol in Unasylva (Ed. française. Imprimé), Vol. 4 n° 2 (01/04/1950)
