文献类型：期刊文献

英文题名：Fabrication of melamine-urea-formaldehyde/paraffin microcapsules modified with cellulose nanocrystals via in situ polymerization

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

第一作者：Han, Shenjie

通信作者：Wang, SQ[1];Fu, F[1];Wang, SQ[2];Fu, F[3]

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

年份：2019

卷号：54

期号：9

起止页码：7383-7396

外文期刊名：JOURNAL OF MATERIALS SCIENCE

收录：;EI(收录号：20190606465943);Scopus(收录号：2-s2.0-85060855204);WOS:【SCI-EXPANDED(收录号:WOS:000458655200050)】；

基金：This work was supported by the Fundamental Research Funds of CAF (No. CAFYBB2017ZX003), the financial support from the National High-Tech R&D Program (863 Program) (Grant No. 2010AA101704), 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 - Cellulose nanocrystals - Crystal structure - Differential scanning calorimetry - Fabrication - Field emission microscopes - Formaldehyde - Fourier transform infrared spectroscopy - High resolution transmission electron microscopy - Metabolism - Microstructure - Polymerization - Scanning electron microscopy - Urea

摘要：The study aims to obtain leakage-free, thermally stable melamine-urea-formaldehyde (MUF)/paraffin microcapsules modified with cellulose nanocrystals (CNCs) by in situ polymerization technique. The morphological features and physicochemical characteristics of CNCs were investigated by transmission electron microscopy, zeta potential measurement, X-ray diffraction, and Fourier transform infrared spectroscopy. Optical microscope measurement, field emission scanning electron microscopy, thermogravimetric analyzer, and differential scanning calorimetry were employed to characterize the morphology, size distribution, and phase change properties of MUF/paraffin microcapsules. The characterization results showed that MUF/paraffin microcapsules were successfully fabricated and modified with CNCs. The CNCs had no impact on the chemical structure or crystal type of MUF/paraffin microcapsules. When the CNC addition was 0.2 wt%, the phase change latent heat values of melting and crystallization of MUF/paraffin microcapsules were, respectively, about 104.5 J/g and 102.8 J/g and the encapsulation efficiency was about 59.8%.