The Investigation of Acetylation and Anti-Oxidant Effect on Weathering of wood  Plastic Composites By Means of FTIR and Color Metry (Color measurement)

Darabi, Pyvand; Abdolzadeh, Hamideh; Karimi, Ali Naghi; Mirshokraie, Seeyed Ahmad; Doosthoseini, Kazem

doi:10.22092/ijwpr.2010.117268

	The Investigation of Acetylation and Anti-Oxidant Effect on Weathering of wood Plastic Composites By Means of FTIR and Color Metry (Color measurement)
تحقیقات علوم چوب و کاغذ ایران
Article 7, Volume 25, Issue 1 - Serial Number 32, September 2010, Pages 70-79 PDF (305.25 K)
Document Type: Research Paper
DOI: 10.22092/ijwpr.2010.117268
Authors
Pyvand Darabi^* ¹; Hamideh Abdolzadeh²; Ali naghi Karimi³; Seeyed Ahmad Mirshokraie⁴; Kazem Doosthoseini³
¹Ph.D., Wood and paper science & Technology, Natural Resources Faculty, University of Tehran, Iran,
²PhD of university of Tehran
³Professor, Wood and paper science & Technology, Natural Resources Faculty, University of Tehran, Iran
⁴Professor, Science Faculty, Payamenoor University, Iran
Abstract
In this study capability of acetylated poplar flour in manufacture of high density poly ethylene composite which expose to accelerated weathering, was investigated. The acetylation degrees at medium and zero (control) levels, use of anti- oxidant and duration of weathering were considered as variables and their effects on discoloration and photodegradation of WPC were investigated. To determine treatments influence on changes and color fade resulting from weathering, samples were tested after o, 250, 2000 hours of weathering. The results indicated that application of acetylated wood flour in WPC can reduce about 25% of weathering discoloration in short time and about 17% in long time. Also it shows that as exposed time of weathering increase Anti oxidant loss its effect. Although in short time it can reduce 12% of weathering color changes. FTIR results show that after 2000 h of weathering all peaks samples had same decrease which mean none of the treatments were useful. But Anti oxidant can reduce depth of weathering.
Keywords
Wood plastic composites; High Density Poly Ethylene/ Wood flour; Acetylation; Anti- Oxidant; Weathering and Discoloration

References
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The Investigation of Acetylation and Anti-Oxidant Effect on Weathering of wood Plastic Composites By Means of FTIR and Color Metry (Color measurement)