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Relationships between synthesis parameters and properties of water expandable polystyrene

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Because of the negative environmental impact of volatile hydrocarbon-based blowing
agents used in expandable polymers, water has been considered a suitable candidate.
Water expandable polystyrene is a polystyrene containing water cells, which may be
used as blowing agent. Because of different physical properties of water and volatile
hydrocarbons, production conditions and physical properties of expandable polystyrene
and water expandable polystyrene are completely different. In this work, water expandable
polystyrene was prepared via suspension polymerization of the styrene/polystyrene
mixture that contained water droplets as blowing agent. An inverse emulsion system
was used to incorporate water into the organic phase. An experimental design was
created to investigate the effects of variation of pre-polymerization time, surfactant
concentration, suspension stabilizer/suspending agent ratio, suspension stabilizer addition
time, and the amount of initial emulsified water on the particle size, distribution of
water droplets, and the water content of the final beads. The relationships between the
synthesis parameters and the properties of water expandable polystyrene were also
studied. Regarding to the expansion behavior of water expandable polystyrene beads,
the effect of water content and bead size on the expandability and the foam density
were investigated.

Keywords Water expandable polystyrene, water content, particle size, experimental design,expansion

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Informasi Detail

Judul Seri

Journal of Cellular Plastics

No. Panggil

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Penerbit

: SAGE Publications Ltd., 2012

Deskripsi Fisik

Journal of Cellular Plastics 49(1) 13–31 , 2012

Bahasa

English

ISBN/ISSN

-

Klasifikasi

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Tipe Isi

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Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

BIOKIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

hasnidar/agus

Versi lain/terkait

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