A polymer concrete (PC) was synthesized by mixing styrenated polyester (SP) and marble wastes as fillers. The unsaturated polyester (UP) used was prepared from the reaction of oligomers obtained from the depolymerization of polyethylene terephthalate (PET) soft drink bottles with maleic anhydride and adipic acid. The UP was then mixed with the styrene monomers at a ratio of 60 : 40% by weight to obtain the SP used for the synthesis of the PC. The aim of this work is to study the suitability of the prepared PC to be used as polymer based building materials. Using marble and PET soft drink bottle wastes for the preparation of the PC affects the environment positively, by avoiding the accumulation of these wastes. Saving the raw materials of polymer and fillers for other applications is another economical advantage of preparing the PC from the recycled PET and marble waste. Mechanical integrity of the PC was studied as blocks prepared under different experimental conditions. Chemical resistance and water absorption were also followed to evaluate the durability of the products obtained. In addition, the flammability of the SP and the PC prepared was also studied. Based on the data obtained, it could be concluded that the PC under consideration has good chemical resistance for 20% Na2CO3,

Polymer Concrete from Marble Wastes and Recycled Poly(ethylene terephthalate)

A novel polymer concrete made with recycled glass aggregates, fly ash and metakaolin

This work reports the use of non-traditional fillers as flame retardants in polyester resin composites. Studies have been carried out to evaluate the fire-retardant properties of non-traditional fillers viz. hydroxyapatite, zinc borate and fly ash in combination with traditional fire retardant filler antimony trioxide, in prepolymer polyester resin composite system. Polyester resin was synthesized using phthalic anhydride (PA), maleic anhydride (MAN) and propylene glycol (PG). Flammability properties studied using limiting oxygen index suggests that incorporation of non-traditional fillers in creases fire retardancy with considerable improvement in mechanical properties. However, the effectiveness of fillers as flame retardants depends on several factors including the type of fillers and incorporation level of the fillers. The use of antimony trioxide and fly ash increases the fire resistance behavior but there is decrease in mechanical properties and thermal stability. The results reveal that good improvement in fire resistance with considerable increase in mechanical properties and thermal stability was obtained with 30% zinc borate as filler.

Use of non-traditional fillers to reduce flammability of polyester resin composites

Effect of polyester backbone structure on the cured products properties

Polymeric composites based on polystyrene and cement dust wastes

Unsaturated polyester based on poly(ethylene, 1,2, propylene ma-leate-phthalate-adipate) was synthesized and used with the styrene monomer as a binder to produce polymeric basalt composites (PBC). The physical properties of the styrenated polyester resin (SP) were determined. Because the aggregate type and composition do affect the durability properties of the composites, the minerological, textural, and chemical composition of the basalt Filler were studied. The mix design for the PBC systems was optimized for workability, strength, and economy. The optimum composition was 10wt% resin and 90wt% oven-dried basalt. The mechanical and durability properties of the prepared PBC have been investigated. The physical, mechanical, and thermal properties of the composites appear to be satisfactorily good. Excellent chemical resistance to most chemical environments was also noted. The dielectric constant (∊′) values indicated that the use of basalt as a filler enhances the electrical characteristics of the...

N. L. Doss

Papers

Preparation and evaluation of some polymeric basalt composites