Air-Conditioning (AC) systems are responsible for a considerable portion of the energy consumption in buildings located in high cooling load requiring regions of Iran. In addition, the heat flow through the buildingschr('39') external walls plays a major role in cooling load estimations for the countrychr('39')s hot regions. Therefore, application of insulation materials in external walls has g...

Considering the insulators ageing in a mixture of PVC and dye, set following operating conditions time to ensure proper operation perfect safety industrial installations using insulated conductors. The results showed that insulation carried out by L.C main office was good quality (on thermal aspect), because resistance is so high (i.e. 3940 Mega Ohms under normal conditions). lifespan 50 years ...

This work focused on reusing polyvinyl chloride (PVC) plastic waste from bottle labels (BLWA) as lightweight aggregates in geopolymer mortar. way of is beneficial for diminishing the negative impacts plastics environment and reducing CO2 emissions by using an alternative cementing material. BLWA was used to partially substitute natural fine aggregate at ratios 0, 5, 10, 15, 20% volume. The mort...

A bio-based plasticizer, epoxidized acetylation cardanol, was synthesized from cardanol, which experienced acetylation reaction and epoxidation reaction. Chemical structure of epoxidized acetylation cardanol was characterized by FT-IR and 1H NMR. Plasticized PVC films (PVC-P) were prepared by casting method with 40%wt of epoxidized acetylation cardanol as a plasticizer. Thermal s...

Polyvinyl chloride (PVC) has toxic effects through the induction of oxidative stress in the body and testicles. Vitamin E (Vit E) is a dietary compound that functions as an antioxidant scavenging toxic free radicals. The present study aimed to probe the protective effect of Vit E against PVC-induced reprotoxicity in male rats. In this experimental study, 24 male rats were randomly divided into ...

X-ray fluorescence spectrometry has been employed to measure Pb in a wide range of consumer and environmental plastics, including food-packaging material, household goods, electronic casings, beach litter agricultural waste. Results reveal high concentrations (>1000 mg kg?1) historical items that are still use or circulation (e.g. toys, construction wiring insulation) variable, but generally lo...

The ZnO sol well-crystallized was prepared by the sol-gel method. The ZnO films were coated on medical-grade PVC surface by the improved organic-inorganic interfacial adhesion method. The physical and photocatalytic properties of the samples were characterized by XRD, SEM, DRS spectra and measured by the photodegradation reaction of Rhodamine B (RhB) and anti-bacteria for Escherichia coli (E. c...

Poly(vinyl chloride) resins are produced by four basic processes: suspension, emulsion, bulk and solution polymerization. PVC suspensions resins are usually relatively dust-free and granular with varying degrees of particle porosity. PVC emulsion resins are small particle powders containing very little free monomer. Bulk PVC resins are similar to suspension PVC resins, though the particles tend...

Continuous monitoring of Power transformer is very much essential during its operation. Incipient faults inside the tank and winding insulation needs careful attention. Traditional ratio methods and Duval triangle can be employed to diagnose the incipient faults. Many times correct diagnosis due to the borderline problems and the existence of multiple faults may not be possible. Artificial inte...