Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14535
ชื่อเรื่อง: Influences of particle sizes and contents of chemical blowing agents on foaming wood plastic composites prepared from poly(vinyl chloride) and rice hull
ผู้แต่ง: Petchwattana N.
Covavisaruch S.
Keywords: Azodicarbonamide
Cell size
Cell walls
Chemical blowing agents
Fine particles
Flexural modulus
Rice hulls
Wood plastic composite
ZnO
Biomechanics
Chlorine compounds
Foams
Impact strength
Low density polyethylenes
Mechanical properties
Polymer matrix composites
Polyvinyl chlorides
Reaction kinetics
Zinc oxide
Blowing agents
วันที่เผยแพร่: 2011
บทคัดย่อ: This research aims to investigate the effects of chemical blowing agent (CBA) contents and particle sizes on the properties of foamed poly(vinyl chloride) (PVC)/rice hull (RH) composites. Fine particles of azodicarbonamide (AC) at 5, 8, 11 and 22 μm were modified with 20% by weight of ZnO and used at 0-3.0% by weight. The average cell size and density of the PVC/RH foamed profiles were reduced as the content of modified azodicarbonamide (mAC) increased. Larger mAC particles lowered the density more effectively. Maximum reduction of density by 46% was achieved when mAC 22 μm was applied at 2.0% by weight. Larger blowing particles led to PVC/RH foam with greater flexural modulus and strength. Greater impact strength, observed when 5 μm mAC was applied, resulted from the rather thick cell wall created abundantly when fine mAC was applied. © 2011 Elsevier Ltd.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14535
https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952185968&doi=10.1016%2fj.matdes.2010.12.044&partnerID=40&md5=d3416e911b7b4b0d70916d9ec8d4725b
ISSN: 2641275
Appears in Collections:Scopus 1983-2021

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