Development of PVC/Silica Hybrids Using PVC Plastisols

A novel method for producing a plasticised PVC with increased porosity has been developed, by the use of an organic‐inorganic hybrid. Silica was produced in situ from tetraethoxysilane via a hydrolytic sol‐gel processing route. Tetrahydrofuran was used as co‐solvent, and γ‐glycidyloxypropyl‐trimetho...

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Bibliographic Details
Published in:Macromolecular symposia 2006-02, Vol.233 (1), p.198-202
Main Authors: Gilbert, Marianne, Haghighat, Siavash, Chua, Soo Keow, Ng, Soo Yeng
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Coupling agents
Exact sciences and technology
Forms of application and semi-finished materials
in-situ formation
Mechanical properties
Plastisols
poly(vinyl chloride)(PVC)
Polymer industry, paints, wood
Polyvinyl chlorides
Porosity
silicas
Silicon dioxide
Sol gel process
sol-gel
Technology of polymers
Vapour
water permeability
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Summary:A novel method for producing a plasticised PVC with increased porosity has been developed, by the use of an organic‐inorganic hybrid. Silica was produced in situ from tetraethoxysilane via a hydrolytic sol‐gel processing route. Tetrahydrofuran was used as co‐solvent, and γ‐glycidyloxypropyl‐trimethoxysilane as coupling agent. The films produced were transparent, with moderate mechanical properties. A film containing 20% silica showed a 45% increase in water vapour permeability.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200690018