The effect of organofluorine additives on the morphology, thermal conductivity and mechanical properties of rigid polyurethane and polyisocyanurate foams

被引：18
|
作者：
Brondi, Cosimo [1 ]
Di Maio, Ernesto [1 ]
Bertucelli, Luigi [2 ]
Parenti, Vanni [2 ]
Mosciatti, Thomas [2 ]
机构：
[1] Univ Naples Federico II, Dipartimento Ingn Chim Mat & Prod Ind, PleTecchio 80, I-80125 Naples, Italy
[2] DOW Italia Srl, Polyurethanes R&D, Correggio, Italy
来源：
JOURNAL OF CELLULAR PLASTICS | 2022年 / 58卷 / 01期
关键词：
Polyurethane; polyisocyanurate; liquid blowing agents; liquid organofluorine additives; thermal insulation; mechanical properties;
D O I：
10.1177/0021955X20987152
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
This study investigates the effect of liquid-type organofluorine additives (OFAs) on the morphology, thermal conductivity and mechanical properties of rigid polyurethane (PU) and polyisocyanurate (PIR) foams. Foams were characterized in terms of their morphology (density, average cell size, anisotropy ratio, open cell content), thermal conductivity and compressive as well as flexural properties. Based on the results, we observed that OFAs efficiently reduced the average cell size of both PU and PIR foams, leading to improved thermal insulating and mechanical properties.
引用
收藏
页码：121 / 137
页数：17
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