文献类型：期刊文献

英文题名：Effects of Processing Conditions on the Properties of Monoammonium Phosphate Microcapsules with Melamine-Formaldehyde Resin Shell

作者：Han, Shenjie[1] Li, Jingpeng[2] Ding, Qingyun[3] Zang, Jian[3] Lu, Yulian[4] Zhang, Longfei[5] Hu, La[6]

第一作者：Han, Shenjie

通信作者：Li, JP[1];Hu, L[2]

机构：[1]Yancheng Inst Technol, Key Lab Adv Technol Environm Protect Jiangsu Prov, Yancheng 224051, Peoples R China;[2]China Natl Bamboo Res Ctr, Key Lab High Efficient Proc Bamboo Zhejiang Prov, Hangzhou 310012, Peoples R China;[3]Yancheng Inst Technol, Coll Mat Sci & Engn, Yancheng 224051, Peoples R China;[4]Yancheng Inst Technol, Sch Chem & Chem Engn, Yancheng 224051, Peoples R China;[5]Chinese Acad Forestry, Res Inst Wood Ind, Key Lab Wood Sci & Technol, State Forestry Adm, Beijing 100091, Peoples R China;[6]Guangxi Forestry Res Inst, State Forestry Adm, Guangxi Key Lab Super Timber Trees Resource Cultiv, Engn Res Ctr Masson Pine, Nanning 530002, Peoples R China

年份：2023

卷号：15

期号：14

外文期刊名：POLYMERS

收录：;EI(收录号：20233114472973);Scopus(收录号：2-s2.0-85166215776);WOS:【SCI-EXPANDED(收录号:WOS:001036335900001)】；

语种：英文

外文关键词：monoammonium phosphate; microcapsule; processing conditions; melamine-formaldehyde; in situ polymerization

摘要：To develop monoammonium phosphate (MAP) as a novel acid source for durable intumescent fire retardants (IFR), MAP microcapsules (MCMAPs) containing MAP as the internal core and melamine-formaldehyde (MF) as the external shell were prepared by in situ polymerization in this study. The influences of synthesis conditions (including reaction temperature, polymerization time, and reaction pH value) on the properties of obtained MCMAPs (MAP content, yield, morphologies, and thermal properties) were then investigated systematically. The morphologies, chemical structures, and thermal properties were characterized by optical microscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetry analyzer (TGA). The results show that MAP was well encapsulated by MF resin. No microcapsules are obtained at <55 & DEG;C or with polymerization times <1 h. Optimal preparation conditions of reaction temperature, polymerization time, and reaction pH value are 75 & DEG;C, 3 h, and 5.5, respectively. Those results provide process reference and theoretical basis for preparing MCMAPs and could promote the application of MAP microcapsules in wood flame-retardant materials.