Durable Flame Retardant Nylon-6,6 by Microwave-Assisted Surface Grafting of Polyacrylamide

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Polymer Materials Pub Date : 2024-07-25 DOI:10.1021/acsapm.4c01065

Shiran Yu, Zhiyu Xia, Weeradech Kiratitanavit, Sourabh Kulkarni, Rashmi Sharma, Dingnan Lu, Alexander B. Morgan, Jayant Kumar, Ravi Mosurkal, Ramaswamy Nagarajan

引用次数: 0

Abstract

A microwave-assisted surface grafting of polyacrylamide (PAAm) enabling durable flame resistance on nylon-6,6 fabric is presented. The PAAm grafted nylon-6,6 (PAAm-g-nylon-6,6) fabric is characterized by FTIR and H NMR. Self-extinguishing nylon-6,6 fabric with a char length of 7.7 cm and after-flame of 2 s in the ASTM D6413 vertical flame test is achieved with 7–8% PAAm grafting. The melt/flame dripping behavior of neat nylon-6,6 is also significantly suppressed by PAAm through enhanced char formation and a gas dilution mechanism, as observed in thermogravimetric analysis. The laundry test followed by the vertical flame test and heat release characterization of PAAm-g-nylon-6,6 suggests that the robust grafting of PAAm provided durable flame resistance to nylon-6,6 fabric. The PAAm-g-nylon-6,6 exhibits a char length of 6.1 cm and an afterflame of 0 s after 20 standard laundry cycles.

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通过微波辅助聚丙烯酰胺表面接枝实现耐用阻燃尼龙-6,6

本文介绍了一种微波辅助表面接枝聚丙烯酰胺（PAAm）的方法，可使尼龙-6,6 织物具有持久的阻燃性。傅立叶变换红外光谱（FTIR）和氢核磁共振（H NMR）对 PAAm 接枝的尼龙-6,6（PAAm-g-nylon-6,6）织物进行了表征。在 ASTM D6413 垂直火焰测试中，7-8% PAAm 接枝的尼龙-6,6 织物的炭化长度为 7.7 厘米，余焰时间为 2 秒。通过热重分析观察到，PAAm 通过增强炭的形成和气体稀释机制，也显著抑制了纯尼龙-6,6 的熔融/火焰滴落行为。PAAm-g-nylon-6,6 的洗衣测试、垂直火焰测试和热释放特性表明，PAAm 的牢固接枝为尼龙-6,6 织物提供了持久的阻燃性。PAAm-g-nylon-6,6 在 20 个标准洗衣周期后的炭化长度为 6.1 厘米，余焰时间为 0 秒。

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

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.

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