Synthesis, mechanical, thermal, and fire properties of poly(vinyl chloride) modified with a new flame retardant based on zeolite and urea cyanurate DOI
Mahroo Khaleghi,

Iliya Eslami

Journal of Vinyl and Additive Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 20, 2024

Abstract In the article, polyvinyl chloride/zeolite 4A/urea cyanurate composites (P/UCA‐Zlt) were designed and prepared by a melt intercalation method suitable for manufacture of rigid products. To determine structure properties this flame‐retardant system, thermal, flame retardancy, mechanical behavior tested Fourier transform infrared analysis (FTIR) spectroscopy, field emission scanning electron microscopy (FE‐SEM), thermogravimetric (TGA/DTG), thermal stability test, cone calorimetric test (CCT), tensile analysis. Results showed that composites, based on UCA‐Zlt, exhibited better HCl scavenger properties, improved reduced level degradation compared with pure chloride (PVC) at optimum modification UCA (3 wt%)–Zlt (1%). TGA, indicated against heat influences PVC was increased adding UCA–Zlt which evident decomposition temperature. The CCT results properties. matrix time as value 1 wt%. Moreover, strength composite containing (1%) 19.8% those neat PVC. Highlights A strategy to design an FR‐additive from zeolite urea Introduce guide formulation. Effects retardancy Introducing optimal FR‐PVC system

Language: Английский

Thermal Stability and Combustion Efficiency of Menouna Coal DOI

Ahmed Yacine Acila,

Mahmoud Eid,

Aleksey valerivich

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Boosting Flame Retardancy of Polypropylene/Calcium Carbonate Composites with Inorganic Flame Retardants DOI Open Access
António Benjamim Mapossa, Erick Gabriel Ribeiro dos Anjos, Uttandaraman Sundararaj

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4553 - 4553

Published: Sept. 16, 2024

This study investigates the effects of inorganic flame retardants, zinc borate, and magnesium hydroxide, on thermal, morphological, retardancy, mechanical properties polypropylene (PP)/calcium carbonate composites for potential construction industry applications. Polypropylene/calcium (50 wt.%) containing 5 10 wt.% retardants were prepared using a batch mixer, followed by compression moulding. The results demonstrated enhanced thermal stability, with highest char residue reaching 47.2% polypropylene/calcium carbonate/zinc borate (10 wt.%)/magnesium hydroxide composite, notably strong outcome. Additionally, composite exhibited an elevated limited oxygen index (LOI) 29.4%, indicating synergistic effect between hydroxide. proposed retardancy mechanism suggests that flammability performance is driven interaction within matrix. Magnesium contributes to smoke suppression releasing water, while forms protective glassy foam covers burning surface, promoting formation acting as physical barrier heat transmission fire spread. Scanning electron microscopy confirmed good dispersion additives alongside calcium polymer Despite addition up maintained high-notched impact strength.

Language: Английский

Citations

3
Synthesis, mechanical, thermal, and fire properties of poly(vinyl chloride) modified with a new flame retardant based on zeolite and urea cyanurate DOI
Mahroo Khaleghi,

Iliya Eslami

Journal of Vinyl and Additive Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 20, 2024

Abstract In the article, polyvinyl chloride/zeolite 4A/urea cyanurate composites (P/UCA‐Zlt) were designed and prepared by a melt intercalation method suitable for manufacture of rigid products. To determine structure properties this flame‐retardant system, thermal, flame retardancy, mechanical behavior tested Fourier transform infrared analysis (FTIR) spectroscopy, field emission scanning electron microscopy (FE‐SEM), thermogravimetric (TGA/DTG), thermal stability test, cone calorimetric test (CCT), tensile analysis. Results showed that composites, based on UCA‐Zlt, exhibited better HCl scavenger properties, improved reduced level degradation compared with pure chloride (PVC) at optimum modification UCA (3 wt%)–Zlt (1%). TGA, indicated against heat influences PVC was increased adding UCA–Zlt which evident decomposition temperature. The CCT results properties. matrix time as value 1 wt%. Moreover, strength composite containing (1%) 19.8% those neat PVC. Highlights A strategy to design an FR‐additive from zeolite urea Introduce guide formulation. Effects retardancy Introducing optimal FR‐PVC system

Language: Английский

Citations

1