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Titolo:
Mechanisms for the surface colour protection of bamboo treated with chromated phosphate
Autore:
Chang, ST; Yeh, TF; Wu, JH;
Indirizzi:
Natl Taiwan Univ, Dept Forestry, Taipei 106, Taiwan Natl Taiwan Univ Taipei Taiwan 106 iv, Dept Forestry, Taipei 106, Taiwan
Titolo Testata:
POLYMER DEGRADATION AND STABILITY
fascicolo: 3, volume: 74, anno: 2001,
pagine: 551 - 557
SICI:
0141-3910(2001)74:3<551:MFTSCP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
GREEN-COLOR; COPPER ARSENATE; MODEL COMPOUNDS; CHLOROPHYLL PHOTODEGRADATION; DENDROCALAMUS-LATIFLORUS; SPECTROSCOPIC ANALYSIS; WOOD; CHROMIUM; PRODUCTS; CONSERVATION;
Keywords:
discolouration; green-colour protection; bamboo; chromated phosphate (CP); FTIR; model compound;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Chang, ST Natl Taiwan Univ, Dept Forestry, No 1,Sect 4,Roosevelt Rd, Taipei 106, Taiwan Natl Taiwan Univ No 1,Sect 4,Roosevelt Rd Taipei Taiwan 106 wan
Citazione:
S.T. Chang et al., "Mechanisms for the surface colour protection of bamboo treated with chromated phosphate", POLYM DEGR, 74(3), 2001, pp. 551-557

Abstract

The attractive green appearance of bamboo culm discolours easily without any protective treatment. Chromated phosphate (CP) was used successfully to protect the green surface of bamboo. To further understand the mechanisms of this protective treatment, three model compounds including cellobiose, arabinose and guaiacol, in place of the chemical components of bamboo, were used to react with CP. FTIR with liquid attenuated total reflectance accessory (liquid ATR) was conducted to investigate the reaction between the modelcompounds and CP. The results revealed that guaiacol had the greatest reactivity toward CP, followed by arabinose and cellobiose. Green precipitates were formed in the solution, as reaction time increased. This green complexwas similar to a green pigment, chromic phosphate (CrPO4). in chemical structure. This green complex contributed to the green-colour protection of bamboo treated with CP by precipitation and chemical bonding to its epidermis. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 14:09:18