Premium
Filler surface treatment with hydrophobic esters
Author(s) -
Naughton Frank C.
Publication year - 1984
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02678805
Subject(s) - filler (materials) , polyolefin , materials science , polymer , wetting , ultimate tensile strength , composite material , dispersion (optics) , inert , rheology , viscosity , chemical engineering , chemistry , organic chemistry , physics , layer (electronics) , optics , engineering
Abstract The use of fillers in polyolefin polymer composites has escalated in recent years in conjunction with the need for improved physical properties and the increased costs of petroleum‐based polymers. Fillers, used as inert extenders and reinforcing agents, present problems when added to organic polymers that are different in chemical nature and physical form. Use of surface‐treatment additives has been developed to overcome problems that originate in the interfacial region where the organic resin phase must wet out the inorganic filler being compounded. Achieving optimal physical and chemical properties in a filled compound, by the use of hydrophobic esters derived from castor oil as wetting and encapsulating agents, was evaluated. The hydrophobic esters improved the dispersion and distribution of filler particles throughout the organic medium. The surface treatment with the ester resulted in a lowering of viscosity and better ability to control the rheology of the compound, raise the extender filler loadings and an upgrading of mechanical properties of the filled resin. It was shown that the use of hydrophobic esters as a surface filler treatment resulted in increased tensile strength, higher impact strength and improved processing of filled polymer composites.