Publication:
Influences of particle sizes and contents of chemical blowing agents on foaming wood plastic composites prepared from poly(vinyl chloride) and rice hull

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Issued Date

2011

Resource Type

Article

File Type

application/pdf

ISSN

2641275

DOI

10.1016/j.matdes.2010.12.044

Other identifier(s)

2-s2.0-79952185968

Rights Holder(s)

Scopus

Bibliographic Citation

Materials and Design. Vol 32, No.5 (2011), p.2844-2850

Suggested Citation

Petchwattana N., Covavisaruch S. Influences of particle sizes and contents of chemical blowing agents on foaming wood plastic composites prepared from poly(vinyl chloride) and rice hull. Materials and Design. Vol 32, No.5 (2011), p.2844-2850. doi:10.1016/j.matdes.2010.12.044 Retrieved from: https://hdl.handle.net/20.500.14740/7335

Title

Influences of particle sizes and contents of chemical blowing agents on foaming wood plastic composites prepared from poly(vinyl chloride) and rice hull

Author(s)

Petchwattana N.
 Covavisaruch S.

Abstract

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.

Subject(s)

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

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URI

https://hdl.handle.net/20.500.14740/7335

Collections

Scopus: Year 1983-2021

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