Study Structure and Properties of Nanocomposite Material Based on Unsaturated Polyester with Clay Modified by Poly(ethylene oxide)

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.

Morphology development and mechanical properties of unsaturated polyester resin containing nanodiamonds

“…The extent of improvement obtained in this study is consistent with the UP/nanofillers reported in the literature. Thanh et al . reported an enhancement in tensile strength (12%) and elastic modulus (56%) in the presence of nanoclay at concentrations above 1 wt%.…”

“…The role of nanoparticles with various shapes and properties like CNTs, GO, clay, carbon black, nanoalumina, nano calcium carbonate and nano titanium on the performance of UP resins has been investigated. In all cases the optimum improvement in mechanical properties can be achieved by a fine dispersion of nanoparticles providing the maximum interfacial area.…”

Unsaturated Polyesters and Vinyl Esters

“…Montmorillinonite, as one of the most often studied materials for nanoreinforcement has been used as such, or modified by grafting of silanes, by ion-exchange [73], by polymers (e.g. polyethylene oxide) [74], or by quaternary alkylammonium modifiers [75]. Typically, organoclay-modified UPRs show increased impact strength, tensile strength, and modulus [76À78], better thermal stability [72], higher plasticity [75], and even lower shrinkage.…”

Research on the Microstructure and Property of an Anion Rubber Modified Asphalt

“…Anion concentration is listed as an important parameter to measure the air quality, and appropriate anion concentration is beneficial to human health and environmental improvement [3][4][5][6]. ARMA (anion rubber modified asphalt) possesses the double advantage of excellent performance and green environmental protection.…”