Highly Efficient and Green Multi-layer Coatings toward Enhancing Impact Resistance, Flame Retardancy and Thermal Insulation of Flexible Polyurethane Foam

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability Pub Date : 2025-05-03 DOI:10.1016/j.polymdegradstab.2025.111408

Yan Liu , Yanjun Zhu , Jie Chen , Yongqian Shi , Yijie Zhang , Libi Fu , Longcheng Tang , Jiefeng Gao , Pingan Song , Ting Qiu

{"title":"Highly Efficient and Green Multi-layer Coatings toward Enhancing Impact Resistance, Flame Retardancy and Thermal Insulation of Flexible Polyurethane Foam","authors":"Yan Liu , Yanjun Zhu , Jie Chen , Yongqian Shi , Yijie Zhang , Libi Fu , Longcheng Tang , Jiefeng Gao , Pingan Song , Ting Qiu","doi":"10.1016/j.polymdegradstab.2025.111408","DOIUrl":null,"url":null,"abstract":"<div><div>In extreme environments, the simultaneous presence of mechanical impact and fire hazards poses significant challenges for single flexible polyurethane foam (FPUF) protective materials. To address these limitations, we developed an innovative multilayer coating structure for FPUF using a simple dip-drying method. This structure comprises a polydopamine (PDA) base layer, an intermediate layer containing ammonium polyphosphate (APP), carboxymethyl chitosan (CMC), and halloysite nanotubes (HNT), and a top layer of polydimethylsiloxane (PDMS). The multilayer coating significantly enhanced the cushioning and flame-retardant properties of FPUF. At a coating loading of 35 wt.%, the FPUF@PDA/A-C-H/PDMS exhibited a compressive strength 3.52 times higher than pure FPUF, with only a 10.2 % decrease after 100 compression cycles. The composite effectively dissipated 95.7 % of an impact energy of 1.22 J, achieving a 97.1 % impact force dissipation rate and significantly extending cushioning duration. The FPUF@PDA/A-C-H/PDMS demonstrated self-extinguishing properties after 10 s of exposure to a butane flame, maintaining structural integrity. Moreover, its peak heat release rate was reduced by 68.8 %. The multilayer coating also improved hydrophobicity and thermal insulation. This multifunctional foam composite shows great potential for enhancing the performances of FPUF in hazardous environments, offering robust protection in extreme conditions.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"239 ","pages":"Article 111408"},"PeriodicalIF":6.3000,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Degradation and Stability","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S014139102500237X","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

In extreme environments, the simultaneous presence of mechanical impact and fire hazards poses significant challenges for single flexible polyurethane foam (FPUF) protective materials. To address these limitations, we developed an innovative multilayer coating structure for FPUF using a simple dip-drying method. This structure comprises a polydopamine (PDA) base layer, an intermediate layer containing ammonium polyphosphate (APP), carboxymethyl chitosan (CMC), and halloysite nanotubes (HNT), and a top layer of polydimethylsiloxane (PDMS). The multilayer coating significantly enhanced the cushioning and flame-retardant properties of FPUF. At a coating loading of 35 wt.%, the FPUF@PDA/A-C-H/PDMS exhibited a compressive strength 3.52 times higher than pure FPUF, with only a 10.2 % decrease after 100 compression cycles. The composite effectively dissipated 95.7 % of an impact energy of 1.22 J, achieving a 97.1 % impact force dissipation rate and significantly extending cushioning duration. The FPUF@PDA/A-C-H/PDMS demonstrated self-extinguishing properties after 10 s of exposure to a butane flame, maintaining structural integrity. Moreover, its peak heat release rate was reduced by 68.8 %. The multilayer coating also improved hydrophobicity and thermal insulation. This multifunctional foam composite shows great potential for enhancing the performances of FPUF in hazardous environments, offering robust protection in extreme conditions.

查看原文本刊更多论文

提高柔性聚氨酯泡沫塑料抗冲击、阻燃和隔热性能的高效绿色多层涂料

在极端环境下，同时存在机械冲击和火灾危险，对单一柔性聚氨酯泡沫（FPUF）保护材料提出了重大挑战。为了解决这些限制，我们使用简单的浸渍干燥方法开发了一种创新的多层FPUF涂层结构。该结构由聚多巴胺（PDA）基础层、含聚磷酸铵（APP）、羧甲基壳聚糖（CMC）和高岭土纳米管（HNT）的中间层和聚二甲基硅氧烷（PDMS）的顶层组成。多层涂层显著提高了FPUF的缓冲性能和阻燃性能。当涂层载荷为35 wt.%时，FPUF@PDA/ a - c - h /PDMS的抗压强度比纯FPUF高3.52倍，在100次压缩循环后仅下降10.2%。该复合材料有效耗散了1.22 J冲击能量的95.7%，实现了97.1%的冲击力耗散率，显著延长了缓冲时间。FPUF@PDA/ a - c - h /PDMS暴露于丁烷火焰10秒后表现出自熄特性，保持结构完整性。同时，其峰值放热率降低了68.8%。多层涂层还改善了疏水性和绝缘性。这种多功能泡沫复合材料在增强FPUF在危险环境中的性能方面显示出巨大的潜力，在极端条件下提供强大的保护。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Polymer Degradation and Stability 化学-高分子科学

CiteScore

10.10

自引率

10.20%

发文量

325

审稿时长

23 days

期刊介绍： Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology. Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen and sunlight are the most important degradative agencies. In more specialised applications, degradation may be induced by high energy radiation, ozone, atmospheric pollutants, mechanical stress, biological action, hydrolysis and many other influences. The mechanisms of these reactions and stabilisation processes must be understood if the technology and application of polymers are to continue to advance. The reporting of investigations of this kind is therefore a major function of this journal. However there are also new developments in polymer technology in which degradation processes find positive applications. For example, photodegradable plastics are now available, the recycling of polymeric products will become increasingly important, degradation and combustion studies are involved in the definition of the fire hazards which are associated with polymeric materials and the microelectronics industry is vitally dependent upon polymer degradation in the manufacture of its circuitry. Polymer properties may also be improved by processes like curing and grafting, the chemistry of which can be closely related to that which causes physical deterioration in other circumstances.