TY  - JOUR
AU  - Shwika, Salem Ibrahim
AU  - Omran, Kaled Mohamed Ben
AU  - Čutović, Natalija
AU  - Marinković, Aleksandar
AU  - Ranitović, Milisav
AU  - Vasilski, Dragana
AU  - Kamberović, Željko
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5178
AB  - Due to the rapidly increasing use of electrical devices, e-waste became one of the major threats to the environment. Waste printed circuit boards (WPCBs) are an integral part of electrical devices, thus the interest in their recycling is growing. Recycling of WPCBs can be performed by applying hydrometallurgical or pyrometallurgical processes, as well as vacuum pyrolysis. The main advantages of vacuum pyrolysis are eco-friendliness, economic viability and efficiency in extracting present noble metals, while pyrolysis oil occurs as a by-product. Pyrolysis oil poses a tremendous threat to the environment, due to the possibility of its spillage into water, as well as a potential release into the air and soil. Because of this, the pyrolysis oil was subjected to chemical treatment with different reagents, such as sodium hydroxide, calcium oxide, sulfuric acid and maleic anhydride, with the intent to solidify the material and remove unpleasant odors. Incorporation of the solidified materials into bitumen, at 2.5, 5, 7.5, and 10 wt.% addition, was performed to obtain waterproofing materials. The obtained solidified and bituminous water-resistant materials were subjected to various test methods: FTIR spectroscopy, physicochemical and mechanical properties of bitumen, etc. which showed that all the tested characteristics are in accordance with values prescribed by the current standard. Toxicity Leaching Procedure (TCLP) confirmed non-hazardous characteristics of the obtained materials, except for the ones with added solidified pyrolysis oil, with Sodium hydroxide, that showed higher leaching of the phenol constituent.
PB  - Association of Metallurgical Engineers of Serbia
T2  - Metallurgical and Materials Engineering
T1  - SUSTAINABLE DEVELOPMENT IN WPCBs TREATMENT FOR PRODUCTION OF BITUMINOUS WATERPROOFING MATERIALS
EP  - 390
IS  - 2
SP  - 381
VL  - 28
DO  - 10.30544/787
ER  - 

@article{
author = "Shwika, Salem Ibrahim and Omran, Kaled Mohamed Ben and Čutović, Natalija and Marinković, Aleksandar and Ranitović, Milisav and Vasilski, Dragana and Kamberović, Željko",
year = "2022",
abstract = "Due to the rapidly increasing use of electrical devices, e-waste became one of the major threats to the environment. Waste printed circuit boards (WPCBs) are an integral part of electrical devices, thus the interest in their recycling is growing. Recycling of WPCBs can be performed by applying hydrometallurgical or pyrometallurgical processes, as well as vacuum pyrolysis. The main advantages of vacuum pyrolysis are eco-friendliness, economic viability and efficiency in extracting present noble metals, while pyrolysis oil occurs as a by-product. Pyrolysis oil poses a tremendous threat to the environment, due to the possibility of its spillage into water, as well as a potential release into the air and soil. Because of this, the pyrolysis oil was subjected to chemical treatment with different reagents, such as sodium hydroxide, calcium oxide, sulfuric acid and maleic anhydride, with the intent to solidify the material and remove unpleasant odors. Incorporation of the solidified materials into bitumen, at 2.5, 5, 7.5, and 10 wt.% addition, was performed to obtain waterproofing materials. The obtained solidified and bituminous water-resistant materials were subjected to various test methods: FTIR spectroscopy, physicochemical and mechanical properties of bitumen, etc. which showed that all the tested characteristics are in accordance with values prescribed by the current standard. Toxicity Leaching Procedure (TCLP) confirmed non-hazardous characteristics of the obtained materials, except for the ones with added solidified pyrolysis oil, with Sodium hydroxide, that showed higher leaching of the phenol constituent.",
publisher = "Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical and Materials Engineering",
title = "SUSTAINABLE DEVELOPMENT IN WPCBs TREATMENT FOR PRODUCTION OF BITUMINOUS WATERPROOFING MATERIALS",
pages = "390-381",
number = "2",
volume = "28",
doi = "10.30544/787"
}

Shwika, S. I., Omran, K. M. B., Čutović, N., Marinković, A., Ranitović, M., Vasilski, D.,& Kamberović, Ž.. (2022). SUSTAINABLE DEVELOPMENT IN WPCBs TREATMENT FOR PRODUCTION OF BITUMINOUS WATERPROOFING MATERIALS. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia., 28(2), 381-390.
https://doi.org/10.30544/787

Shwika SI, Omran KMB, Čutović N, Marinković A, Ranitović M, Vasilski D, Kamberović Ž. SUSTAINABLE DEVELOPMENT IN WPCBs TREATMENT FOR PRODUCTION OF BITUMINOUS WATERPROOFING MATERIALS. in Metallurgical and Materials Engineering. 2022;28(2):381-390.
doi:10.30544/787 .

Shwika, Salem Ibrahim, Omran, Kaled Mohamed Ben, Čutović, Natalija, Marinković, Aleksandar, Ranitović, Milisav, Vasilski, Dragana, Kamberović, Željko, "SUSTAINABLE DEVELOPMENT IN WPCBs TREATMENT FOR PRODUCTION OF BITUMINOUS WATERPROOFING MATERIALS" in Metallurgical and Materials Engineering, 28, no. 2 (2022):381-390,
https://doi.org/10.30544/787 . .

TY  - JOUR
AU  - Omran, Kaled Mohamed Ben
AU  - Shwika, Salem Ibrahim
AU  - Vuksanović, Marija M.
AU  - Marinković, Aleksandar D.
AU  - Jovanović, Aleksandar
AU  - Prlainović, Nevena
AU  - Vasilski, Dragana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5177
AB  - During a fire, passive fire protection systems are designed to prevent the spread of flames, smoke, and toxic gases. The new fire-retardant (FR) material, used for passive fire protection, is created by combining copolymers (VC–co–VAc) (Slovinyl KV 173) and PVC K70 with expanded graphite and plasticizers/modifiers such as diisononyl phthalate-DINP, diisononyl terephthalate-DINTP, dioctyl adipate-DOA, as well as plasticizers that are synthesized based on tertiary recycling of waste poly(ethylene terephthalate) (PET), 1-hexadecene, azodicarbonamide (ADC), tri(p-cresyl phosphate), epoxidized soybean oil (ESO) and acrylate emulsion (DH50, Ecrylic, or Flexryl, etc.). The obtained material's morphology was examined using an emission scanning electron microscope (FESEM) field. Tensile testing was used to determine the mechanical properties of the obtained samples, as well as Shore A hardness and toughness using the Charpy impact test. All samples obtained were tested according to non-flammability standards. To conform to the new trend of "green economy," the development of novel eco-friendly FRs with improved thermal and mechanical properties will include careful consideration of environmental protection and sustainable development.
PB  - Association of Metallurgical Engineers of Serbia
T2  - Metallurgical and Materials Engineering
T1  - CIRCULAR ECONOMY IMPLEMENTATION IN THE DEVELOPMENT OF FIRE-RETARDANT MATERIALS USED IN CONSTRUCTION, INDUSTRY, AND GENERAL-PURPOSE PRODUCTS
EP  - 379
IS  - 2
SP  - 369
VL  - 28
DO  - 10.30544/768
ER  - 

@article{
author = "Omran, Kaled Mohamed Ben and Shwika, Salem Ibrahim and Vuksanović, Marija M. and Marinković, Aleksandar D. and Jovanović, Aleksandar and Prlainović, Nevena and Vasilski, Dragana",
year = "2022",
abstract = "During a fire, passive fire protection systems are designed to prevent the spread of flames, smoke, and toxic gases. The new fire-retardant (FR) material, used for passive fire protection, is created by combining copolymers (VC–co–VAc) (Slovinyl KV 173) and PVC K70 with expanded graphite and plasticizers/modifiers such as diisononyl phthalate-DINP, diisononyl terephthalate-DINTP, dioctyl adipate-DOA, as well as plasticizers that are synthesized based on tertiary recycling of waste poly(ethylene terephthalate) (PET), 1-hexadecene, azodicarbonamide (ADC), tri(p-cresyl phosphate), epoxidized soybean oil (ESO) and acrylate emulsion (DH50, Ecrylic, or Flexryl, etc.). The obtained material's morphology was examined using an emission scanning electron microscope (FESEM) field. Tensile testing was used to determine the mechanical properties of the obtained samples, as well as Shore A hardness and toughness using the Charpy impact test. All samples obtained were tested according to non-flammability standards. To conform to the new trend of "green economy," the development of novel eco-friendly FRs with improved thermal and mechanical properties will include careful consideration of environmental protection and sustainable development.",
publisher = "Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical and Materials Engineering",
title = "CIRCULAR ECONOMY IMPLEMENTATION IN THE DEVELOPMENT OF FIRE-RETARDANT MATERIALS USED IN CONSTRUCTION, INDUSTRY, AND GENERAL-PURPOSE PRODUCTS",
pages = "379-369",
number = "2",
volume = "28",
doi = "10.30544/768"
}

Omran, K. M. B., Shwika, S. I., Vuksanović, M. M., Marinković, A. D., Jovanović, A., Prlainović, N.,& Vasilski, D.. (2022). CIRCULAR ECONOMY IMPLEMENTATION IN THE DEVELOPMENT OF FIRE-RETARDANT MATERIALS USED IN CONSTRUCTION, INDUSTRY, AND GENERAL-PURPOSE PRODUCTS. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia., 28(2), 369-379.
https://doi.org/10.30544/768

Omran KMB, Shwika SI, Vuksanović MM, Marinković AD, Jovanović A, Prlainović N, Vasilski D. CIRCULAR ECONOMY IMPLEMENTATION IN THE DEVELOPMENT OF FIRE-RETARDANT MATERIALS USED IN CONSTRUCTION, INDUSTRY, AND GENERAL-PURPOSE PRODUCTS. in Metallurgical and Materials Engineering. 2022;28(2):369-379.
doi:10.30544/768 .

Omran, Kaled Mohamed Ben, Shwika, Salem Ibrahim, Vuksanović, Marija M., Marinković, Aleksandar D., Jovanović, Aleksandar, Prlainović, Nevena, Vasilski, Dragana, "CIRCULAR ECONOMY IMPLEMENTATION IN THE DEVELOPMENT OF FIRE-RETARDANT MATERIALS USED IN CONSTRUCTION, INDUSTRY, AND GENERAL-PURPOSE PRODUCTS" in Metallurgical and Materials Engineering, 28, no. 2 (2022):369-379,
https://doi.org/10.30544/768 . .