Addition of ammonium polyphosphate for simultaneous enhancement of flame retardancy, mechanical, and viscoelastic properties of PALF-reinforced bio-HDPE composite

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-12-16 DOI:10.1002/vnl.22185

Aditya Pratap Singh, Manoj Kumar Singh, Sanjay Mavinkere Rangappa, Suchart Siengchin, Himanshu Pathak, Sunny Zafar

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引用次数: 0

Abstract

This work is focused on reducing the flammability of 25 wt.% pineapple leaf fiber (PALF)-reinforced bio-based high-density polyethylene (bio-HDPE) composites. Varying contents of ammonium polyphosphate (APP) up to 10 wt.%, have been incorporated as a flame retardant while its effects on mechanical and viscoelastic properties are also evaluated. The linear burning rate is reduced by up to 26% for 10% APP content in the horizontal burn test. The incorporation of APP also proved beneficial in arresting the dripping of the polymer matrix during the vertical burn test. Thermal analysis showed that the interaction between APP and natural fibers enhanced the residual char content by up to 9%. Furthermore, dynamic mechanical analysis revealed an increase in the damping factor (loss tangent) with APP addition. The findings recommend incorporating up to 5% APP in PALF/Bio-HDPE composites as optimum. PALF-reinforced Bio-HDPE composite with improved flame retardancy, mechanical, and damping properties is achieved, offering an alternative to conventional composites used in automobile and construction industries.

Highlights

Flame-retardant composites made from 25% PALF and 10% APP.
10% APP base composite showed a 26% reduced UL 94 horizontal burning rate.
APP incorporation increases residual char content and prevents dripping also.
APP enhances both the mechanical properties and damping factor of composites.

Abstract Image

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添加聚磷酸铵，同时增强palf增强生物hdpe复合材料的阻燃性、机械性能和粘弹性

这项工作的重点是降低25吨的可燃性。%菠萝叶纤维（PALF）增强生物基高密度聚乙烯（bio-HDPE）复合材料。不同含量的聚磷酸铵（APP）可达10吨。%的阻燃剂，并对其机械性能和粘弹性性能的影响进行了评价。水平燃烧试验中，APP含量为10%时，直线燃烧速率降低26%。在垂直燃烧试验中，APP的掺入也被证明有利于阻止聚合物基体的滴落。热分析表明，APP与天然纤维的相互作用使残炭含量提高了9%。此外，动态力学分析表明，APP的加入增加了阻尼系数（损失切线）。研究结果建议在PALF/Bio-HDPE复合材料中添加5%的APP为最佳。palf增强Bio-HDPE复合材料具有更好的阻燃性、机械性能和阻尼性能，为汽车和建筑行业中使用的传统复合材料提供了一种替代方案。由25% PALF和10% APP组成的阻燃复合材料。10% APP基复合材料的UL 94水平燃烧率降低了26%。APP的掺入增加了残余炭的含量，也防止了滴落。APP提高了复合材料的力学性能和阻尼系数。

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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.