探索硬质聚氨酯泡沫中的豆油基多元醇和无卤阻燃剂的效果

IF 4.7 3区 工程技术 Q2 ENGINEERING, ENVIRONMENTAL
Sahithi Kondaveeti, Pratik Patel, Felipe M. de Souza, Ram K. Gupta
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引用次数: 0

摘要

由于化石燃料的过度使用和人们对环境的日益关注,对可持续生物材料的需求与日俱增,为了解决这一问题,我们合成了一种新型的可生物降解且环保的硬质聚氨酯泡沫(RPUF)。这些泡沫由化学改性的大豆油基多元醇(SBO-多元醇)通过环氧乙烷的形成和环氧乙烷反应的开放而获得。聚氨酯泡沫一般用于建筑、家具和汽车行业,但极易燃烧,燃烧时会释放有毒烟雾。本研究以 2-羧乙基(苯基)膦酸(CEPP)和三聚氰胺(MA)为原料,合成了一种具有高效协同效应的无卤阻燃(FR)三聚氰胺盐--2-羧乙基(苯基)膦酸三聚氰胺盐(CMA)。傅立叶变换红外光谱(FT-IR)鉴定了 CMA 的化学结构。在泡沫制备过程中,分别引入了三种不同的 FRs(MA、氰尿酸三聚氰胺(MC)和 CMA),且引入量不断增加,以抑制燃烧过程中的火焰。通过闭孔含量、表观密度、压缩试验、水平燃烧试验、热重分析(TGA)、凝胶渗透色谱(GPC)和扫描电子显微镜(SEM),研究了这些 FR 对制备的 RPUF 的热性能、阻燃性、形态、物理和机械性能的影响。添加 28.56 wt% 的 MA(MA-15)、MC(MC-15)和 CMA(CMA-15)后,燃烧时间分别为 10.1 秒(失重 5.34%)、28.4 秒(失重 13.02%)和 15.25 秒(失重 8%)。研究结果表明,这三种阻燃剂都赋予了 RPUF 良好的阻燃特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Exploring Soybean Oil-Based Polyol and the Effect of Non-halogenated Flame Retardants in Rigid Polyurethane Foam

Exploring Soybean Oil-Based Polyol and the Effect of Non-halogenated Flame Retardants in Rigid Polyurethane Foam

Exploring Soybean Oil-Based Polyol and the Effect of Non-halogenated Flame Retardants in Rigid Polyurethane Foam

To address the increasing demand for sustainable biomaterials because of the excessive usage of fossil fuel and growing concerns with the environment, a novel biodegradable and environmentally friendly rigid polyurethane foam (RPUF) has been synthesized. These foams are derived from chemically modified soybean oil-based polyol (SBO-polyol) obtained through the formation of oxirane followed by the opening of the oxirane reaction. Polyurethane foam is generally used in construction, furniture, and automobile industries but is highly flammable and releases toxic fumes in combustion. In this study, an efficient synergistic effect of non-halogen flame-retardant (FR) melamine salt, 2-carboxyethyl(phenyl)phosphinic acid melamine salt (CMA) was synthesized from 2-carboxyethyl(phenyl)phosphinic acid (CEPP) and melamine (MA). Fourier transform infrared (FT-IR) spectroscopy characterized the chemical structure of CMA. Three different FRs, MA, melamine cyanurate (MC), and CMA were separately introduced in increasing quantities for the foam preparation to suppress the flame during combustion. The influence of these FRs on the thermal properties, flame retardancy, morphology, physical, and mechanical properties of the prepared RPUFs was studied through closed cell content, apparent density, compression test, horizontal burning test, thermogravimetric analysis (TGA), and gel permeation chromatography (GPC), scanning electron microscopy (SEM). The addition of 28.56 wt% of MA (MA-15), MC (MC-15), and CMA (CMA-15) presented a burning time of 10.1 s with weight loss of 5.34% and 28.4 s with 13.02% and 15.25 s with 8%, respectively. The findings demonstrated that all three FRs gave RPUF good FR properties.

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来源期刊
Journal of Polymers and the Environment
Journal of Polymers and the Environment 工程技术-高分子科学
CiteScore
9.50
自引率
7.50%
发文量
297
审稿时长
9 months
期刊介绍: The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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