Composites from PMMA modified thermosets and chemically treated woodflour

The mechanical behavior of composites made from woodflour and a modified thermoset unsaturated polyester resin has been examined. Polymethylmethacrylate (PMMA), a common low profile additive (LPA), was used as the matrix modifier. Woodflour, the reinforcing filler, was used ‘as received’ and was als...

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Bibliographic Details
Published inPolymer engineering and science Vol. 43; no. 5; pp. 999 - 1010
Main Authors Acha, Betiana A., Aranguren, Mirta I., Marcovich, Norma E., Reboredo, Maria M.
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.05.2003
Wiley Subscription Services
Society of Plastics Engineers, Inc
Blackwell Publishing Ltd
Subjects
Applied sciences
Composites
Exact sciences and technology
Fibers
Forms of application and semi-finished materials
Polymer industry, paints, wood
Polymeric composites
Polymethylmethacrylate
Technology of polymers
United States
Ester polymer
Methyl methacrylate polymer
Mechanical properties
Lignocellulosics
Dispersion reinforced material
Organic anhydride
Experimental study
Property processing relationship
Fumarate polymer
Composite material
Thermosetting resin
Surface treatment
Coupling agent
Polymer filler interaction
Wood by product
Concentration effect
Modified material
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Summary:The mechanical behavior of composites made from woodflour and a modified thermoset unsaturated polyester resin has been examined. Polymethylmethacrylate (PMMA), a common low profile additive (LPA), was used as the matrix modifier. Woodflour, the reinforcing filler, was used ‘as received’ and was also modified with a commercial alkenyl succinic anhydride (ASA), in order to enhance the compatibility with the resin. The composites exhibited higher flexural and compressive modulus and compressive yield stress than the neat resin, while flexural strength and ultimate strain were reduced. The addition of PMMA to the unfilled thermoset led to a LPA morphology and decreased the flexural modulus, but produced an increment in flexural strain at break, impact energy and toughness of the UP resin. No enhancement in the mechanical behavior of the composites was found when treated woodflour instead of unmodified woodflour was used.
Bibliography:ArticleID:PEN10084
istex:0B3AB2877872EDC87E72CFF3B9DF7146D48C85CA
ark:/67375/WNG-WJP8NR5B-3
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.10084