用于改善刨花板燃烧反应的生物基含磷聚酯

Bio-Based Phosphate-Containing Polyester for Improvement of Fire Reaction in Wooden Particleboard.

作者信息

Svensson Ingemar, Butron Amaia, Puyadena Maddalen, González Alba, Irusta Lourdes, Barrio Aitor

机构信息

TECNALIA, Basque Research and Technology Alliance (BRTA), 20730 Azpeitia, Spain.

POLYMAT, Department of Polymers and Advanced Materials, Physics, Chemistry and Technology, University of the Basque Country (UPV/EHU), 20080 Donostia-San Sebastián, Spain.

出版信息

Polymers (Basel). 2023 Feb 22;15(5):1093. doi: 10.3390/polym15051093.

DOI:10.3390/polym15051093

PMID:36904334

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10007242/

Abstract

A new phosphate-containing bio-polyester based on glycerol and citric acid was synthesized and evaluated as fire-retardant (FR) in wooden particleboards. Phosphorus pentoxide was used to first introduce phosphate esters in the glycerol followed by esterification with citric acid to produce the bio-polyester. The phosphorylated products were characterized by ATR-FTIR, H-NMR and TGA-FTIR. After polyester curing, they were grinded and incorporated in laboratory produced particleboards. The fire reaction performance of the boards was evaluated by cone calorimeter. An increased char residue was produced depending on the phosphorus content and the THR (Total Heat Release), PHRR (Peak of Heat Release Rate) and MAHRE (Maximum Average of the Rate of Heat Emission) were considerably reduced in presence of the FRs. Highlights: Phosphate containing bio-polyester as fire retardant in wooden particle board; Fire performance is improved; Bio-polyester acts in the condensed and gas phases; Additive effectiveness similar to ammonium polyphosphate.

摘要

合成了一种基于甘油和柠檬酸的新型含磷生物聚酯，并对其在木质刨花板中的阻燃性能进行了评估。首先使用五氧化二磷在甘油中引入磷酸酯，然后与柠檬酸进行酯化反应以制备生物聚酯。通过衰减全反射傅里叶变换红外光谱（ATR-FTIR）、氢核磁共振（H-NMR）和热重-傅里叶变换红外光谱（TGA-FTIR）对磷酸化产物进行了表征。聚酯固化后，将其研磨并添加到实验室生产的刨花板中。通过锥形量热仪评估板材的燃烧反应性能。根据磷含量的不同，产生了更多的残炭，并且在阻燃剂存在的情况下，总热释放量（THR）、热释放速率峰值（PHRR）和最大平均热释放速率（MAHRE）都大幅降低。亮点：含磷生物聚酯作为木质刨花板的阻燃剂；燃烧性能得到改善；生物聚酯在凝聚相和气相中起作用；添加剂效果与聚磷酸铵相似。