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Inorganic polymer
About: Inorganic polymer is a research topic. Over the lifetime, 702 publications have been published within this topic receiving 13920 citations. The topic is also known as: hybrid polymer.
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01 Jan 2009
TL;DR: In this article, the authors describe the synthesis and characterization of fly ash glass chemistry and inorganic polymer cements for geopolymers and their application in nuclear waste immobilization and toxic waste removal.
Abstract: Introduction to geopolymers Part 1 Geopolymer synthesis and characterisation: Fly ash glass chemistry and inorganic polymer cements Geopolymer precursor design Activating solution chemistry for geopolymers Nanostructure/microstructure of metakaolin geopolymers Nanostructure/microstructure of fly ash geopolymers Geopolymer synthesis kinetics Part 2 Manufacture and properties of geopolymers: Accelerated ageing of geopolymers Chemical durability of geopolymers Life-cycle analysis of geopolymers Engineering properties of geopolymer concrete Producing fire and heat-resistant geopolymers Utilisation of mining wastes to produce geopolymer binders Utilisation of non-thermally activated clays in the production of geopolymers Thermal properties of geopolymers Utilisation of low-calcium slags to improve the strength and durability of geopolymers Part 3 Applications of geopolymers: Commercialisation of geopolymers for construction: Opportunities and obstacles Geopolymers for nuclear waste immobilization Immobilization of toxic waste in geopolymers
585 citations
TL;DR: In this paper, the effect of the water, sodium hydroxide and sodium silicate contents in the synthesis of fly ash-based geopolymers on their compressive strength is investigated.
525 citations
TL;DR: In this paper, a series of geopolymer composites were prepared containing 10−20% of various granular inorganic fillers ranging from waste demolition materials through mineral tailings to engineering ceramics.
454 citations
TL;DR: A review of the recent advances in the field of inorganic polymers over the past decade can be found in this article, focusing mainly on the new inorganic polymer systems that have been prepared during this period.
Abstract: Polysiloxanes [R2SiO]n, polyphosphazenes [R2PN]n, and polysilanes [R2Si]n illustrate that the incorporation of inorganic elements into a polymer main chain can lead to useful properties. These include low temperature flexibility, high thermal and oxidative stability, flame retardancy, novel forms of chemical reactivity, and intriguing electrical and optical characteristics arising from unusual electronic effects such as the delocalization of σ electrons. However, until recently, the development of inorganic polymer science has been held back by the synthetic problem of finding ways to join atoms of inorganic elements together into long chains. This review surveys many of the exciting advances in the field of inorganic polymers over the past decade and focuses mainly on the new inorganic polymer systems that have been prepared during this period. These include random-network polysilynes, poly(carbophosphazene)s, sulfur–nitrogen–phosphorus polymers, poly(organooxothiazene)s, and, very recently, the first examples of polystannanes that possess a main chain of tin atoms. Transition metal based polymer science has also experienced a number of synthetic break-throughs and new materials include high molecular weight metallocene-based polymers, polymetallaynes incorporating elements such as iron, nickel, and rhodium, liquid crystalline organocobalt and organochromium polymers, and lanthanide-based polymers.
452 citations
TL;DR: In this paper, the effect of mainly Na+ and K+ on the physical and chemical properties of fly ash-based geopolymeric binders both before and after setting has been investigated.
Abstract: The alkali and alkali earth metal cations present during the formation of most known aluminosilicate structures have a very significant effect on both the physical and chemical properties of the final product. Geopolymers are no exception, although this effect has not been thoroughly quantified and in the case of waste-based geopolymers it has not received any significant attention. The present study investigates the effect of mainly Na+ and K+ on the physical and chemical properties of fly ash-based geopolymeric binders both before and after setting has occurred. A variety of tests were conducted, including rheological measurements, various leaching tests, compressive strength testing, specific surface area determinations, and infrared spectroscopy (IR). It is concluded that the alkali metal cation controls and affects almost all stages of geopolymerization, from the ordering of ions and soluble species during the dissolution process to playing a structure-directing role during gel hardening and eventual...
392 citations