Influence of the Molecular Weight of Polyvinyl Acetate on the Fire Protection Efficiency of Intumescent Fire-Retardant Coatings Based on Polyphosphate Systems

IF 0.8 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Doklady Chemistry Pub Date : 2025-03-19 DOI:10.1134/S0012500825600075

D. A. Kuznetsova, V. A. Zaytseva, N. V. Yashin, V. V. Avdeev

引用次数: 0

Abstract

The dependence of thermophysical and thermomechanical properties of the coating on the average molecular weight and molecular weight distribution of polyvinyl acetate was studied by the example of an intumescent fire-retardant composite containing the ammonium polyphosphate–pentaerythritol–melamine–titanium dioxide system and homopolymer PVA as a binder. It was found that, for homopolymer PVA, there is an optimal value of the average molecular weight, at which the maximum fire protection efficiency of the studied fire-retardant coating is achieved at optimal values of its thermal expansion ratio.

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聚醋酸乙烯酯分子量对聚磷酸酯系膨胀型防火涂料防火性能的影响

以聚磷酸铵-季戊四醇-三聚氰胺-二氧化钛体系和均聚聚乙烯醇为粘结剂的膨胀型阻燃复合材料为例，研究了涂层的热物理和热机械性能对聚乙酸乙烯酯平均分子量和分子量分布的影响。研究发现，对于均聚PVA，存在一个最佳平均分子量值，在此值下，所研究的防火涂料在热膨胀比最佳值下的防火效率达到最大。

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

Doklady Chemistry 化学-化学综合

CiteScore

1.20

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Doklady Chemistry is a journal that publishes new research in chemistry and chemical engineering of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.