Development of PVC/silica hybrids using PVC plastisols

被引:0
作者
Gilbert, M [1 ]
Haghighat, S
Chua, SK
Ng, SY
机构
[1] Loughborough Univ Technol, IPTME, Loughborough LE11 3TU, Leics, England
[2] Precis Polymer Engn, Blackburn BB1 3EA, Lancs, England
关键词
in-situ formation; poly(vinyl chloride)(PVC); silicas; sol-gel; water permeability;
D O I
10.1002/masy.200690018
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 gamma-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.
引用
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页码:198 / 202
页数:5
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