Material resistance of weathered wood-plastic composites against fungal decay

被引：29

作者：

Naumann, Annette ^{[1
]}

Stephan, Ina ^{[1
]}

Noll, Matthias ^{[1
,2
]}

机构：

[1] BAM, Fed Inst Mat Res & Testing, Div 4 1, D-12205 Berlin, Germany

[2] Univ Appl Sci Coburg, D-96406 Coburg, Germany

来源：

INTERNATIONAL BIODETERIORATION & BIODEGRADATION | 2012年 / 75卷

关键词：

Wood-plastic composite (WPC); Weathering; Fungal decay; Fourier transform infrared - attenuated total reflexion (FTIR-AIR) spectroscopy; Microscopy; DENSITY-POLYETHYLENE COMPOSITES; FTIR SPECTROSCOPY; CONTACT;

D O I：

10.1016/j.ibiod.2012.08.004

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Material performance testing of wood-plastic composites (WPC) requires adequate and time-efficient evaluation of the resistance against fungal colonisation and decay. This study investigates the effects of weathering on WPCs and subsequent material degradation by fungi. Weathering using UV radiation, water spray and repeated frost incidents caused micro- and macro-cracks. Fourier transform infrared spectroscopy (FTIR) demonstrated delignification of wood particles at the weathered WPC surface. Despite of increased surface area, accessibility for fungal hyphae and moisture content, weathering enhanced mass loss due to fungal decay only subtly but not significantly. These potentially enhancing effects for fungal decay are assumed to be outbalanced by delignification due to photo-oxidation and leaching of degradation products resulting in loss of nutrient sources essential for fungal growth. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：28 / 35

页数：8

共 30 条

[21] Rapid characterisation of brown and white rot degraded chir pine and rubberwood by FTIR spectroscopy
Pandey K.K.
Nagveni H.C.
[J]. Holz als Roh - und Werkstoff, 2007, 65 (06) : 477 - 481
[22] Natural Weathering Studies of Polypropylene
Rajakumar, K.
Sarasvathy, V.
Chelvan, A. Thamarai
Chitra, R.
Vijayakumar, C. T.
[J]. JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2009, 17 (03) : 191 - 202
[23] Schirp A, 2008, ACS SYM SER, V982, P480
[24] Schwarze Francis W. M. R., 2007, Fungal Biology Reviews, V21, P133, DOI 10.1016/j.fbr.2007.09.001
[25] Characterization of weathered wood-plastic composite surfaces using FTIR spectroscopy, contact angle, and XPS
Stark, Nicole M.
Matuana, Laurent M.
[J]. POLYMER DEGRADATION AND STABILITY, 2007, 92 (10) : 1883 - 1890
[26] Effect of weathering cycle and manufacturing method on performance of wood flour and high-density polyethylene composites
Stark, NM
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2006, 100 (04) : 3131 - 3140
[27] Surface chemistry and mechanical property changes of wood-flour/high-density-polyethylene composites after accelerated weathering
Stark, NM
Matuana, LM
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 94 (06) : 2263 - 2273
[28] Improvements of monitoring the effects of soil organisms on wood in ground contact
Stephan, I
Göller, S
Rudolph, D
[J]. HOLZ ALS ROH-UND WERKSTOFF, 2000, 58 (1-2) : 115 - 119
[29] Stephan I, 2008, CHIM OGGI, V26, P20
[30] Taylor A., 2009, PB1779 U TENN

← 1 2 3 →