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Gelation and fusion of vinyl plastisols
Author(s) -
Hoy K. L.
Publication year - 1966
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1966.070101207
Subject(s) - plasticizer , fusion , materials science , diffusion , phase (matter) , constant (computer programming) , composite material , reflectivity , fick's laws of diffusion , polymer chemistry , chemical engineering , analytical chemistry (journal) , thermodynamics , optics , chemistry , chromatography , organic chemistry , philosophy , linguistics , physics , computer science , programming language , engineering
The gelation of vinyl plastisols at constant temperature has been found to follow the equation ln [( C − C e )/( U − C e )] = (− π 2 / a 2 ) D τ + ln (8/π 2 ), where C is the resin phase concentration, C e the equilibrium resin phase concentration, U the critical resin phase concentration, a the average particle size, D the diffusion constant, and τ the time required for the onsent of gelation. A light reflectance apparatus capable of measuring the gelation process is described. The effect that various resin–plasticizer parameters have on the gelation and fusion process is discussed. The light‐reflectance apparatus is also useful for estimating various resin and formulating parameters.

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