Preparation and characterization of PET/silica nanocompositesWiley - Tập 91 Số 2 - Trang 1229-1232 - 2004
Wentao Liu, Xingyou Tian, Ping Cui, Yong Li, Kang Zheng, Ye Yang
AbstractPoly(ethylene terephthalate) (PET)/silica nanocomposites were fabricated by direct polymerizing PET monomer dispersed with organic modified silica nanoparticles. The characteristics and properties of these nanocomposites were investigated by the transmission electron microscopy, differential scanning calorimetry, and thermogravimetric analysis, respectively...... hiện toàn bộ
Preparation of a novel poloxamer hydrogelWiley - Tập 88 Số 11 - Trang 2670-2676 - 2003
HaeYong Kweon, Mi‐Kyong Yoo, Jin‐Hak Lee, Won‐Ryang Wee, Young‐Gun Han, Kwang‐Gill Lee, Chong‐Su Cho
AbstractPoloxamer hydrogels were prepared by photopolymerization from poloxamer macromer, which was synthesized by reaction of poloxamer 407 with acryloyl chloride. The synthesis of poloxamer macromer was confirmed using NMR and FTIR spectrometry. The gelation behavior and crystalline structure of poloxamer macromer was similar to those of poloxamer 407 itself; how...... hiện toàn bộ
LbL‐coated microcapsules as systems for encapsulation of optical brightening agentWiley - Tập 127 Số 3 - Trang 1609-1614 - 2013
Jasaswini Tripathy, Ashok M. Raichur
AbstractWe report the encapsulation of optical brightening agent (OBA) into hollow microcapsules prepared by the controlled Layer‐ by‐Layer (LbL) self‐assembly process, achieved by the sequential adsorption of oppositely charged polyelectrolytes using negatively charged silica template. Loading takes place by spontaneous deposition method which was proved by confoc...... hiện toàn bộ
Service lifetime prediction of nitrile butadiene rubber gaskets used in plate heat exchangersWiley - Tập 139 Số 28 - 2022
Mateus de Sousa Zanzi, Elias Luiz de Souza, Gabriel Benedet Dutra, Kleber Vieira de Paiva, J.L.G. Oliveira, Tiago Vieira da Cunha, André Sampaio Monteiro
AbstractGasketed plate heat exchangers are characterized in a usual heat exchanger class. These systems employ elastomeric gaskets as the sealing element. Several conditions lead to oxidation and deterioration of these materials and their properties. In addition, the complex geometry of the gaskets and operation conditions may cause divergence in the expected aging...... hiện toàn bộ
Preparation and properties of a salt‐resistant superabsorbent polymerWiley - Tập 93 Số 6 - Trang 2532-2541 - 2004
Songmei Ma, Mingzhu Liu, Zhenbin Chen
AbstractCrosslinked sodium polyacrylate was prepared by solution polymerization with N,N‐methylene‐bisacrylamide (bisAM) as crosslinking agent; it was subsequently surface‐crosslinked by ethylene glycol diglycidyl ether (EGDE) and then was modified with inorganic salt to obtain a superabsorbent with water absorb...... hiện toàn bộ