文献类型：期刊文献

英文题名：Combined stabilizers prepared from cellulose nanocrystals and styrene-maleic anhydride to microencapsulate phase change materials

作者：Han, Shenjie[1] Lyu, Shaoyi[1] Chen, Zhilin[1,2] Fu, Feng[1,2] Wang, Siqun[1,3]

第一作者：Han, Shenjie

通信作者：Fu, F[1];Wang, SQ[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Nanjing Forestry Univ, Co Innovat Ctr Efficient Proc & Utilizat Forest R, Nanjing 210037, Peoples R China;[3]Univ Tennessee, Dept Forestry Wildlife & Fisheries, Ctr Renewable Carbon, Knoxville, TN 37996 USA

年份：2020

卷号：234

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20200608128389);Scopus(收录号：2-s2.0-85078866118);WOS:【SCI-EXPANDED(收录号:WOS:000513917300046)】；

基金：This work was supported by the Fundamental Research Funds of CAF (No. CAFYBB2017ZX003), the USDA National Institute of Food and Agriculture, Hatch project 1012359 and the Special Fund for Forest Scientific Research in the Public Welfare (No. 201504603).

语种：英文

外文关键词：Cellulose nanocrystals; Phase change material; Pickering emulsions; Styrene-maleic anhydride; Microcapsules

摘要：Cellulose nanocrystals (CNCs) combined with styrene-maleic anhydride (SMA) as stabilizers were used to stabilize paraffin droplets for fabricating paraffin/melamine-urea-formaldehyde (MUF) microcapsules. Effects of mixed emulsifier of CNCs and SMA on the morphologies, chemical structures, and properties of paraffin/MUF microcapsules were characterized by Field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric analyzer (TGA), differential scanning calorimetry (DSC), and paraffin leakage rate test. The results showed that using CNCs alone as emulsifier did not work in manufacturing paraffin/MUF microcapsules, but mixed emulsifier of CNCs and SMA was suitable. When CNCs and SMA each account for 50 % of the mixed stabilizer, the phase change latent heat values of melting and crystallization of MicroC5S5 were about 123.6 J/g and 118.4 J/g, respectively. This demonstrates that CNCs can be mixed with SMA to stabilize paraffin droplets in situ polymerization and reduce the need for surfactants.