Dynamic mechanical properties of bacterial cellulose nanofibresIranian Polymer Journal - Tập 27 - Trang 433-443 - 2018
Hadi Hosseini, Mehrdad Kokabi, Seyyed Mohammad Mousavi
In this work, dynamic mechanical properties of the grown bacterial cellulose (BC) nanofibers were investigated. BC pellicles were fabricated using bacterial fermentation (Gluconacetobacter xylinus). The morphology results confirmed that the dried BC at ambient conditions could be categorized as a xerogel. The thermal dynamic mechanical analysis results indicated that the bound water in bacterial c...... hiện toàn bộ
Viscoelastic changes in chlorinated butyl rubber modified with graphene oxideIranian Polymer Journal - - 2017
Ping Jiang, Chunhua Yang, Xianru He, Alisson M. Rodrigues, Rui Zhang
The glass–rubber transition region in multiple component systems is significant for studying the slow relaxation processes in amorphous polymers. It is the first time that graphene oxide (GO) is added into chlorinated butyl rubber (CIIR) to study the effect of GO on different relaxation processes of CIIR. We aimed to give a possible insight to the molecular relaxation behaviors of CIIR/GO nanocomp...... hiện toàn bộ
Processing and characterization of reclaimed rubber composite materialsIranian Polymer Journal - Tập 24 - Trang 671-678 - 2015
Xiaoou Zhou, Sheng Jiang, Xiong Yan, Xinhao Ge, Jie Hong, Bing Sun
The dynamic mechanical properties of environment-friendly elastomeric composites consisting of reclaimed rubber (r-rubber), a waste product of roller processing of textile mill, and organic hindered phenol compound 4,4′-thio-bis(6-tert-butyl-m-methyl phenol) (AO-300) were investigated. With incorporation of AO-300 into the r-rubber, the storage modulus (E′) and loss modulus (E′′) of r-rubber were ...... hiện toàn bộ
A dual-cross-linked hydrogel based on hyaluronic acid/gelatin tethered via tannic acid: mechanical properties’ enhancement and stability controlIranian Polymer Journal - - 2021
Shan Yu, Yuxing Ji, Cuiping Guo, Daohuan Lu, Zhijie Geng, Dating Pei, Qunfeng Liu
Extracellular matrix (ECM) as a network is mainly composed of glycosaminoglycans and proteins. Among these glycosaminoglycans and proteins that naturally occur in ECM, hyaluronic acid (HA) and gelatin attract more attentions. In this work, a chemically cross-linked HA/gelatin hydrogel (HG hydrogel) was firstly fabricated, and then, tannic acid (TA) was introduced as a physical cross-linker, to for...... hiện toàn bộ
Effective oil spill cleaned up with environmentally friendly foams filled with eucalyptus charcoal residueIranian Polymer Journal - - 2021
Lana S. Maia, Noelle C. Zanini, Alana G. de Souza, Rennan F. S. Barbosa, Derval S. Rosa, Hernane S. da Barud, Daniella R. Mulinari
We developed polyurethane foams (PU) filled with eucalyptus charcoal residue (ECR) (5, 10, 20, and 30% by wt) for diesel sorption from seawater. The PU foams were characterized by FTIR, FT-Raman, SEM, density, TGA, contact angle, diesel S500 and S10 sorption, and recyclability. The ECR addition altered PU chemical structure, inducing new chemical bonds and probably altering cross-linking ability o...... hiện toàn bộ
A polyacrylamide hydrogel for application at high temperature and salinity tolerance in temporary well pluggingIranian Polymer Journal - Tập 27 - Trang 577-587 - 2018
Camellia Zareie, Mohsen Vafai Sefti, Ahmad Reza Bahramian, Mahsa Baghban Salehi
In addition to conventional approach to ensure the successful application of polymer hydrogels in maintaining temporary well plugging, exact analysis of gel formation and gel strength properties in wellbore are necessary. In this work, bottles and rheology tests are used to investigate the polymer hydrogel gelation time and cross-linking kinetics of sol–gel systems which consist of polyacrylamide ...... hiện toàn bộ
Methacrylate-functionalized POSS influence on cross-linking and mechanical properties of styrene-butadiene rubberIranian Polymer Journal - Tập 30 - Trang 697-705 - 2021
Seda Bekin Acar, Mehmet Atilla Tasdelen, Bagdagul Karaagac
The addition of methacrylate-functional polyhedral oligomeric silsesquioxane (MA-POSS) nanoparticles to styrene-butadiene rubber (SBR) composites was evaluated in terms of rheological, mechanical, and morphological properties. The aging process and cross-link density of rubber nanocomposites were examined in presence of MA-POSS. The MA-POSS could directly participate in the vulcanization reaction ...... hiện toàn bộ