Abstract
In recent years, polymer clay nanocomposites have been attracting considerable interests in polymers science because of their advantages. There are many scientists who researched about this kind of material and demonstrated that when polymer matrix was added to little weight of clay, properties were enhanced considerably. Because clay is a hydrophilic substance so it is difficult to use as filler in polymer matrix having hydrophobic nature, so clay needs to be modified to become compatible with polymer. In this study, poly(ethylene oxide) was used as a new modifier for clay to replace some traditional ionic surfactants such as primary, secondary, tertiary, and quaternary alkyl ammonium or alkylphosphonium cations having the following disadvantages: disintegrate at high temperature, catalyze polymer degradation, and make nanoproducts colorific, and so forth. In order to evaluate modifying effect of poly(ethylene oxide), modified clay products were characterize d by X-ray spectrum. Then organoclay was used to prepare nanocomposite based on unsaturated polyester. Morphology and properties of nanocomposites were measure d by X-ray diffraction, transmission electron microscopy, tensile strength, and thermal stability. The results showed that clay galleries changed to intercalated state in the nanocomposites. Properties of nanocomposites were improved a lot when the loading of the organoclay was used at 1 phr.
Highlights
Polymer clay nanocomposites (PCNs) are one of the ways for making new materials that frequently exhibit remarkable improvements of material properties to replace traditional products in many applications [1, 2]
The results showed that when clay dispersed in the form of exfoliated state or intercalated state, properties of PCNs such as tensile strength, flexural strength, gas permeability and biodegradability were improved significantly [3,4,5,6]
Nanocomposite materials based on Unsaturated Polyester resin (UP) with poly(ethylene oxide) (PEO) modified clay were prepared by solution method
Summary
Polymer clay nanocomposites (PCNs) are one of the ways for making new materials that frequently exhibit remarkable improvements of material properties to replace traditional products in many applications [1, 2]. The PCNs based on unsaturated polyester and nanoclay (MMT) have been widely researched by scientists in the world for many years. In this study we have tried using poly(ethylene oxide) (PEO) as a new modifier to replace some traditional ionic surfactants such as primary, secondary, tertiary, and quaternary alkyl ammonium or alkylphosphonium cations having, disadvantages: disintegrate at high temperature, catalyze polymer degradation, and make nanoproducts colorific [13]. Nanocomposite materials based on Unsaturated Polyester resin (UP) with PEO modified clay were prepared by solution method. The morphology and properties of PCNs were tested through XRD, TEM, mechanical strength, and thermal behavior
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