Polyester polyols based on aromatic alcohols

被引:0
作者
Lewandowski, Marek [1 ]
Biniecka, Paulina [1 ]
机构
[1] Purinova Sp Zoo, Jako Technol Dziale R&D, Bydgoszcz, Poland
来源
PRZEMYSL CHEMICZNY | 2023年 / 102卷 / 02期
关键词
polyester polyols; aromatic alcohols; polyurethane boards; fire resistance;
D O I
10.15199/62.2023.2.1
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Polyester polyols based on phthalic anhydride or a mixt. of carboxylic acids and resorcinol were obtained, and then polyurethane foams were prepared from them. To modify the flammability properties, the addn. of tetrabromophthalate diol (PTH-diol) was used at the stage of foam production or at the stage of polyester polyol synthesis, incorporating the PTH-diol molecule into the polyester polyol chain. The simultaneous use of aromatic alc. and Br flame retardant for the synthesis of polyester polyol allowed to maintain or reduce the single burning item indexes SBI of the polyurethane foam produced from it, while creating a favorable scale on the surface of the burnt sample. The obtained polyurethane foams were characterized by reduced maximum rate of heat emission, MARHE and heat release rate, HRR and increased heat of combustion.
引用
收藏
页码:152 / 155
页数:4
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