Publication: Influences of modified chemical blowing agents on foaming of wood plastic composites prepared from poly(vinyl chloride) and rice hull
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Issued Date
2011
Resource Type
File Type
application/pdf
ISSN
10226680
Other identifier(s)
2-s2.0-80053056229
Rights Holder(s)
Scopus
Bibliographic Citation
Advanced Materials Research. Vol 306-307, No. (2011), p.869-873
Suggested Citation
Petchwattana N., Covavisaruch S. Influences of modified chemical blowing agents on foaming of wood plastic composites prepared from poly(vinyl chloride) and rice hull. Advanced Materials Research. Vol 306-307, No. (2011), p.869-873. doi:10.4028/www.scientific.net/AMR.306-307.869 Retrieved from: https://hdl.handle.net/20.500.14740/7237
Author(s)
Abstract
The influences of the types of chemical blowing agent (CBA) namely endothermic, exothermic and their mixture, on the properties of the foamed poly(vinyl chloride) (PVC) and rice hull wood plastic composites (WPC) were investigated in the current research. Specifically, azodicarbonamide and sodium bicarbonate were selected to represent the exothermic the endothermic CBA respectively. Particles of sodium bicarbonate and azodicarbonamide were modified with 25 wt% citric acid and 20 wt% ZnO respectively, and they were used at 0 to 3.0 wt%. Maximum reduction of density by 45% was achieved when the exothermic CBA was applied at 2.0% by weight. Overall, the flexural properties decreased as the level of the CBA was increased from 0-2.0 wt%, but there was an upturn when the CBA reached 3.0 wt%. The mixture of exo/endothermic CBA illustrated the mechanical properties averaged between their parents. © (2011) Trans Tech Publications, Switzerland. © (2011) Trans Tech Publications, Switzerland.
Subject(s)
Azodicarbonamide
Chemical blowing agents
Flexural properties
Rice hulls
Sodium bicarbonates
Wood plastic composite
Wood plastic composites
ZnO
Carbonates
Chlorine compounds
Citric acid
Foams
Low density polyethylenes
Mechanical properties
Physical properties
Polyvinyl chlorides
Sodium
Wood products
Zinc oxide
Blowing agents
Carbonates
Chlorine Compounds
Citric Acid
Foam
Mechanical Properties
Physical Properties
Polyethylene
Polymer Wood Combinations
Wood Products
Chemical blowing agents
Flexural properties
Rice hulls
Sodium bicarbonates
Wood plastic composite
Wood plastic composites
ZnO
Carbonates
Chlorine compounds
Citric acid
Foams
Low density polyethylenes
Mechanical properties
Physical properties
Polyvinyl chlorides
Sodium
Wood products
Zinc oxide
Blowing agents
Carbonates
Chlorine Compounds
Citric Acid
Foam
Mechanical Properties
Physical Properties
Polyethylene
Polymer Wood Combinations
Wood Products