Effect of intumescent flame retardants on the properties of poly(ethylene-co-vinyl acetate)/high-density polyethylene blends

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-10-29 DOI:10.1002/vnl.22175

Kyu-Hyun Kang, Hyun-Rae Kim, Sangwon Park, Jong-Seok Park, Daeyoung Hwang, Byoung-Min Lee, Jae-Hak Choi

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引用次数: 0

Abstract

This study investigates the innovative use of intumescent flame retardants (IFRs), specifically ammonium polyphosphate (APP), dipentaerythritol (DPER), and melamine cyanurate (MC), to enhance the flame retardancy and thermal stability of poly(ethylene-co-vinyl acetate)/high-density polyethylene (EVA/HDPE) blends. The blends were prepared through a melt mixing process, followed by compression molding, allowing for a thorough integration of the IFRs into the polymer matrix. Comprehensive characterization techniques, including limiting oxygen index (LOI) measurements, UL-94 vertical combustion tests, and cone calorimeter tests, were employed to evaluate the flame retardant performance of the blends. The findings reveal that the incorporation of IFRs significantly improves the flame retardant properties of the EVA/HDPE blends, achieving LOI values of 30.0% and UL-94 ratings of V-0 at higher IFR concentrations. This work contributes to the field by demonstrating the effectiveness of IFRs in forming a protective char layer that enhances thermal stability and reduces heat release during combustion. The study not only provides insights into the optimal formulation of EVA/HDPE blends for improved fire safety but also paves the way for the development of advanced materials suitable for applications in wire and cable insulation, where enhanced flame resistance is paramount.

Highlights

Intumescent flame retardants (IFRs) were incorporated to improve flame retardancy.
The effect of IFRs content was investigated.
EVA/HDPE/IFRs blends exhibited high thermal stability and flame retardancy.

Abstract Image

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膨胀阻燃剂对聚乙烯/高密度聚乙烯共混物性能的影响

本研究探讨了膨胀阻燃剂（IFRs）的创新用途，特别是聚磷酸铵（APP）、二季戊四醇（DPER）和三聚氰胺氰尿酸（MC），以提高聚（乙烯-醋酸乙烯）/高密度聚乙烯（EVA/HDPE）共混物的阻燃性和热稳定性。共混物是通过熔融混合工艺制备的，然后是压缩成型，允许ifr完全集成到聚合物基体中。综合表征技术，包括极限氧指数（LOI）测量、UL-94垂直燃烧测试和锥形量热计测试，用于评估共混物的阻燃性能。研究结果表明，IFR的加入显著提高了EVA/HDPE共混物的阻燃性能，在较高IFR浓度下，LOI值达到30.0%，UL-94等级为V-0。这项工作通过证明ifr在形成保护炭层方面的有效性，从而提高了热稳定性并减少了燃烧过程中的热释放，从而为该领域做出了贡献。该研究不仅为EVA/HDPE共混物的最佳配方提供了见解，以提高消防安全性，而且为开发适用于电线电缆绝缘应用的先进材料铺平了道路，其中增强阻燃性至关重要。加入膨胀阻燃剂（IFRs）以提高阻燃性。考察了IFRs含量的影响。EVA/HDPE/IFRs共混物具有较高的热稳定性和阻燃性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.