膨胀型防火涂料在暴露于火焰时会膨胀形成保护炭层,有助于限制钢的温升以显著延长其失效时间,防止倒塌。近年来,基于可再生生物基材料、环保材料、一体化膨胀、纳米技术、协效剂和微纳米结构涂层等先进的防火体系被开发出来,为持久性长、释放热量低、烟雾少、有毒气体少、环保、多功能防火涂料的开发提供了潜在的解决方案。简要介绍了新的膨胀型阻燃剂基防火涂料,着重介绍了新膨胀防火涂料用协效剂,并进一步探讨了涂料的防火机理及发展方向。
Intumescent fireproof coatings expand when exposed to flames to form a protective char layer that helps control temperature rise of steel to significantly prolong its failure time and prevent collapse.Some advanced fireproof systems have been developed in recent years based on renewable biobased materials,environmentally friendly materials,“all-in-one” intumescence,nanotechnology,synergistic agent,micro-nano structure coatings,etc.,which have provided potential solutions for the development of multifunctional fireproof coatings with great persistence,the low release of heat,smoke,and toxic gases,and environmental protection.This review outlined new intumescent flame retardants-based fireproof coatings,focusing on synergists used for these coatings.The fireproof mechanism and future development of intumescent fireproof coatings were further discussed.
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基金资助
国家自然科学基金面上项目(22178242);山西省重点研发计划项目(202102040201009)
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