Shape memory polyurethane foams (SMPUF) were synthesized using the materials as follows:liquefied MDI (MM103),polycaprolactone diol (PCL) and 1,6-hexanediol (HDO) as the main raw materials,together with water and dichlorofluoroethane as co-blowing agents,and triethylamine and dibutyltin dilaurate as catalysts.Then the sealing foam were prepared by pressing the synthesized SMPUF.The properties of SMPUF and sealing foam were investigated by density testing,differential scanning calorimetry,and shape memory performance testing.The results showed that the density of the foam was 1.1g/cm3,the shape recovery temperature was 80℃.The foam had an excellent shape memory performance,which could meet the sealing requirement of prefabricated building.
Feng Minghui, Li Shuai, Xia Chunlei, Zhou Minghui, Jiang Guochang, Jiang Zhiguo
. Study on preparation and performance of sealing foam used in prefabricated building[J]. New Chemical Materials, 2020
, 48(7)
: 164
-166
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.07.037
[1] 单翠.我国装配式建筑研究综述[J].攀枝花学院学报,2017,34(5):8-13.
[2] Secondary Auther.高密度填充型形状记忆聚氨酯泡沫的研制[J].化工新型材料,2017,238-240.
[3] Singhal P,Rodriguez J N,Small W,et al.Ultra low density and highly crosslinked biocompatible shape memory polyurethane foams[J].Journal of Polymer Science Part B Polymer Physics,2012,50(10):724-737.
[4] Ratna D,Karger-Kocsis J.Recent advances in shape memory polymers and composites:a review[J].Journal of Materials Science,2008,43(1):254-269.
[5] Hager M D,Bode S,Weber C,et al.Shape memory polymers:past,present and future developments[J].Progress in Polymer Science,2015,49-50:3-33.
[6] Thirumal M,Khastgir D,Singha N K,et al.Effect of foam density on the properties of water blown rigid polyurethane foam[J].Journal of Applied Polymer Science,2008,108(3):1810-1817.
[7] 黄微波,张静,吕平.混凝土防护用聚脲和聚氨酯(脲)的鉴别[J].聚氨酯工业,2011,26(2):37-39.
[8] Singhal P,Rodriguez J N,Small W,et al.Ultra low density and highly crosslinked biocompatible shape memory polyurethane foams[J].Journal of Polymer Science Part B Polymer Physics,2012,50(10):724-737.
