"Antu\u0161kov\u00E1, V\u00E1clava" . "S" . "Vliv anorganick\u00FDch slou\u010Denin pou\u017E\u00EDvan\u00FDch k ochran\u011B d\u0159eva na celulosu"@cs . "2" . "Koroze a ochrana materi\u00E1l\u016F" . . "1804-1213" . "7"^^ . "Vliv anorganick\u00FDch slou\u010Denin pou\u017E\u00EDvan\u00FDch k ochran\u011B d\u0159eva na celulosu" . . . "58" . "The impact of inorganic compounds used for protection of wood on cellulose"@en . "RIV/60461373:22320/14:43897333" . "http://www.degruyter.com/dg/viewarticle.fullcontentlink:pdfeventlink/$002fj$002fkom.2014.58.issue-2$002fkom-2014-0008$002fkom-2014-0008.pdf?t:ac=j$002fkom.2014.58.issue-2$002fkom-2014-0008$002fkom-2014-0008.xml" . "10.2478/kom-2014-0008" . "Anorganick\u00E9 slou\u010Deniny se \u010Dasto pou\u017E\u00EDvaj\u00ED k ochran\u011B d\u0159eva p\u0159ed d\u0159evokazn\u00FDmi houbami a hmyzem (nap\u0159. slou\u010Deniny arsenu, m\u011Bdi, chromu, zinku nebo boru) nebo jako retard\u00E9ry ho\u0159en\u00ED (nap\u0159. amonn\u00E9 soli, slou\u010Deniny boru). Jejich pou\u017Eit\u00ED ale m\u016F\u017Ee v\u00E9st k urychlen\u00ED prob\u00EDhaj\u00EDc\u00EDch degrada\u010Dn\u00EDch proces\u016F, co\u017E se m\u016F\u017Ee projevit nap\u0159. zhor\u0161en\u00EDm mechanick\u00FDch vlastnost\u00ED. Tato pr\u00E1ce se zab\u00FDv\u00E1 p\u016Fsoben\u00EDm vybran\u00FDch anorganick\u00FDch slou\u010Denin (chlorid sodn\u00FD, pentahydr\u00E1t s\u00EDranu m\u011B\u010Fnat\u00E9ho, kyselina borit\u00E1 a s\u00EDran amonn\u00FD) na celulosu. Vzorky celulosy impregnovan\u00E9 uveden\u00FDmi slou\u010Deninami byly podrobeny um\u011Bl\u00E9mu st\u00E1rnut\u00ED. U vzork\u016F celulosy byly sledov\u00E1ny zm\u011Bny hmotnosti, zm\u011Bny barevnosti, hodnoty pH vodn\u00E9ho v\u00FDluhu, pr\u016Fm\u011Brn\u00FD polymera\u010Dn\u00ED stupe\u0148, mechanick\u00E9 vlastnosti, element\u00E1rn\u00ED slo\u017Een\u00ED a obsah nav\u00E1zan\u00FDch anorganick\u00FDch slou\u010Denin. U pou\u017E\u00EDvan\u00FDch anorganick\u00FDch slou\u010Denin byla zji\u0161\u0165ov\u00E1na jejich stabilita v podm\u00EDnk\u00E1ch um\u011Bl\u00E9ho st\u00E1rnut\u00ED. Z v\u00FDsledku vypl\u00FDv\u00E1, \u017Ee z pou\u017Eit\u00FDch slou\u010Denin nejv\u00EDce urychluj\u00ED degradaci celulosy pentahydr\u00E1t s\u00EDranu m\u011B\u010Fnat\u00E9ho a s\u00EDran amonn\u00FD. P\u016Fsoben\u00EDm kyseliny borit\u00E9 doch\u00E1zelo k v\u011Bt\u0161\u00EDmu po\u0161kozen\u00ED vzork\u016F p\u0159edev\u0161\u00EDm v podm\u00EDnk\u00E1ch such\u00E9ho st\u00E1rnut\u00ED. Chlorid sodn\u00FD nem\u011Bl na pr\u016Fb\u011Bh degradace v\u00FDrazn\u00FD vliv. K po\u0161kozen\u00ED vzork\u016F mohlo doch\u00E1zet ji\u017E b\u011Bhem impregnace kv\u016Fli n\u00EDzk\u00E9mu pH n\u011Bkter\u00FDch impregna\u010Dn\u00EDch roztok\u016F. Pou\u017Eit\u00E9 slou\u010Deniny z\u016Fst\u00E1vaj\u00ED alespo\u0148 \u010D\u00E1ste\u010Dn\u011B nav\u00E1z\u00E1ny ve vzorc\u00EDch celulosy i po vym\u00FDv\u00E1n\u00ED."@cs . "CZ - \u010Cesk\u00E1 republika" . "Vliv anorganick\u00FDch slou\u010Denin pou\u017E\u00EDvan\u00FDch k ochran\u011B d\u0159eva na celulosu" . "[46D6B816A2D0]" . . "2"^^ . "inorganic compounds; degradation; Cellulose"@en . . "Anorganick\u00E9 slou\u010Deniny se \u010Dasto pou\u017E\u00EDvaj\u00ED k ochran\u011B d\u0159eva p\u0159ed d\u0159evokazn\u00FDmi houbami a hmyzem (nap\u0159. slou\u010Deniny arsenu, m\u011Bdi, chromu, zinku nebo boru) nebo jako retard\u00E9ry ho\u0159en\u00ED (nap\u0159. amonn\u00E9 soli, slou\u010Deniny boru). Jejich pou\u017Eit\u00ED ale m\u016F\u017Ee v\u00E9st k urychlen\u00ED prob\u00EDhaj\u00EDc\u00EDch degrada\u010Dn\u00EDch proces\u016F, co\u017E se m\u016F\u017Ee projevit nap\u0159. zhor\u0161en\u00EDm mechanick\u00FDch vlastnost\u00ED. Tato pr\u00E1ce se zab\u00FDv\u00E1 p\u016Fsoben\u00EDm vybran\u00FDch anorganick\u00FDch slou\u010Denin (chlorid sodn\u00FD, pentahydr\u00E1t s\u00EDranu m\u011B\u010Fnat\u00E9ho, kyselina borit\u00E1 a s\u00EDran amonn\u00FD) na celulosu. Vzorky celulosy impregnovan\u00E9 uveden\u00FDmi slou\u010Deninami byly podrobeny um\u011Bl\u00E9mu st\u00E1rnut\u00ED. U vzork\u016F celulosy byly sledov\u00E1ny zm\u011Bny hmotnosti, zm\u011Bny barevnosti, hodnoty pH vodn\u00E9ho v\u00FDluhu, pr\u016Fm\u011Brn\u00FD polymera\u010Dn\u00ED stupe\u0148, mechanick\u00E9 vlastnosti, element\u00E1rn\u00ED slo\u017Een\u00ED a obsah nav\u00E1zan\u00FDch anorganick\u00FDch slou\u010Denin. U pou\u017E\u00EDvan\u00FDch anorganick\u00FDch slou\u010Denin byla zji\u0161\u0165ov\u00E1na jejich stabilita v podm\u00EDnk\u00E1ch um\u011Bl\u00E9ho st\u00E1rnut\u00ED. Z v\u00FDsledku vypl\u00FDv\u00E1, \u017Ee z pou\u017Eit\u00FDch slou\u010Denin nejv\u00EDce urychluj\u00ED degradaci celulosy pentahydr\u00E1t s\u00EDranu m\u011B\u010Fnat\u00E9ho a s\u00EDran amonn\u00FD. P\u016Fsoben\u00EDm kyseliny borit\u00E9 doch\u00E1zelo k v\u011Bt\u0161\u00EDmu po\u0161kozen\u00ED vzork\u016F p\u0159edev\u0161\u00EDm v podm\u00EDnk\u00E1ch such\u00E9ho st\u00E1rnut\u00ED. Chlorid sodn\u00FD nem\u011Bl na pr\u016Fb\u011Bh degradace v\u00FDrazn\u00FD vliv. K po\u0161kozen\u00ED vzork\u016F mohlo doch\u00E1zet ji\u017E b\u011Bhem impregnace kv\u016Fli n\u00EDzk\u00E9mu pH n\u011Bkter\u00FDch impregna\u010Dn\u00EDch roztok\u016F. Pou\u017Eit\u00E9 slou\u010Deniny z\u016Fst\u00E1vaj\u00ED alespo\u0148 \u010D\u00E1ste\u010Dn\u011B nav\u00E1z\u00E1ny ve vzorc\u00EDch celulosy i po vym\u00FDv\u00E1n\u00ED." . . . "The impact of inorganic compounds used for protection of wood on cellulose"@en . "53610" . . . . "RIV/60461373:22320/14:43897333!RIV15-MSM-22320___" . "22320" . "1"^^ . . "Ku\u010Derov\u00E1, Irena" . . . . "Vliv anorganick\u00FDch slou\u010Denin pou\u017E\u00EDvan\u00FDch k ochran\u011B d\u0159eva na celulosu"@cs . "Inorganic compounds were often used to protect wood from wood-decaying fungi and insects (e.g. compounds of arsenic, copper, chromium, zinc or boron) or as a retarder of combustion (e.g. ammonium salts, boron compounds). However, their use may accelerate degradation processes, which may show up as worsening of mechanical properties. The study deals with the impact of selected inorganic compounds (sodium chloride, copper sulphate pentahydrate, boric acid and ammonium sulphate) on cellulose. The samples of cellulose impregnated with the said compounds were subject to artifi cial aging. The cellulose was monitored for weight changes, changes in colour, values of aqueous extract pH, an average polymerization grade, mechanical properties, elementary composition and the content of bound inorganic compounds. The study was meant to identify stability of the used inorganic compounds in the conditions of artifi cial aging. The results imply that copper sulphate pentahydrate and ammonium sulphate accelerated degradation of cellulose the most. The effect of boric acid lead to larger deterioration of specimens namely in the conditions of dry aging. Sodium chloride had a negligible impact on the course of degradation. Used compounds continue to be at least partly retained in the cellulose specimens even after rinsing."@en .