In this work membrane (proton exchange membrane) by using the blend polymers (polyethersulfone (PES), Expandable polystyrene (EPS), polyvenylidinefluride polymer (PVDF)) were prepared. This was modified adding organic sulfonic acid to solution precasting process, and sulfonated dipping it in diluted sulfuric (H2SO460%) post casting process. The sulfonation confirmed via FTIR spectra. characteri...

Seaport buildings have been affected by marine moisture for a long time, but most of the wall thermal insulation studies not considered transfer effect structure. Therefore, considering function structure and energy consumption solar radiation, based on cost analysis, paper puts forward research energy-saving technology harbor building analysis. Grey clustering is used to analyze project enviro...

In this study, the recovery rates of dissolution method for radioactivity analysis expandable polystyrene (EPS) with a liquid scintillation counter (LSC) using tetrahydrofuran (THF), toluene, and acetone as solvents were estimated. The detection efficiency calibration curve each solvent was derived. Two methods—the volumetric ratio quenching agent method—were used to prepare quench source sets,...

An oil and gas well cementing in Gachsaran formation, where sustained annular pressure has been reported in many wells, presents a big challenge in Maroon field. The main challenges are preventing gas migration and achieving zonal isolation using a competent cement sealant system which is able to withstand downhole stresses and high temperatures during production cycles. Unlike conventional cem...

The present study is concerned with the investigation of mechanical properties of A713 alloy castings produced by investment casting process using expandable polystyrene as the pattern material and the plaster of paris as the mould material. Experiments were conducted as per Taguchi’s L9 orthogonal array. Castings were made under the constraint of different process parameters like mould firing ...

The seismic performance of recycled aggregate concrete (RAC) composite shear walls with different expandable polystyrene (EPS) configurations was investigated. Six concrete shear walls were designed and tested under cyclic loading to evaluate the effect of fine RAC in designing earthquake-resistant structures. Three of the six specimens were used to construct mid-rise walls with a shear-span ra...

an oil and gas well cementing in gachsaran formation, where sustained annular pressure has been reported in many wells, presents a big challenge in maroon field. the main challenges are preventing gas migration and achieving zonal isolation using a competent cement sealant system which is able to withstand downhole stresses and high temperatures during production cycles. unlike conventional cem...

This paper investigates the effect of filling polystyrene foam beads (EPS) on foaming temperature regulation rigid polyurethane (RPUF) composites and describes change process first 400 s reaction for two systems with high low RPUF. Different contents expandable EPS were used to regulate RPUF reduce internal structural defects composite material caused by excessive which is effectively optimized...