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Journal of Renewable Materials 2018年第2期6卷 217-218页

作者： hamid kaddami Bernard Cathala Laboratory of Organometallic Macromolecular Chemistry and Composites Materials Cadi Ayyad UniversityAvenue Abdelkrim ElkhattabiB.P.549MarrakechMorocco The INRA–Biopolymers–Interaction and Assemblies(BIA) Rue de la Géraudière BP 7162744316 Nantes Cedex 3France

This special issue of Journal of Renewable Materials contains the contributions of authors in attendance at the 4th International Conference on Biobased Materials and Composites(ICBMC’17)held at the INRA-BIA unit in Nantes,*** conference is one of the most successful scientific events in the field of biobased materials and *** goal of the ICBMC conferences is to foster an understanding of scientific and technical progress,and knowledge of the field of natural polymers extraction,biopolymers,biomaterials and their blends,composites,and biobased materials for energy conversion and IPNs.

关键词： composites biomaterials knowledge

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Structure-Thermal Conductivity Tentative Correlation for Hybrid Aerogels Based on Nanofibrillated Cellulose-Mesoporous Silica Nanocomposite

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Journal of Renewable Materials 2018年第3期6卷 299-313页

作者： Dounia Bendahou Abdelkader Bendahou Bastien Seantier Benedicte Lebeau Yves Grohens hamid kaddami University of Southern Brittany Dupuy de Lôme Research InstituteFRE-CNRS 3744BP 9211656321 Lorient CedexFrance Cadi Ayyad University Faculty of Sciences and TechnologiesAvenue Abdelkrim ElkhattabiB.P.549MarrakechMorocco University of Upper Alsace Institute of Materials Science of Mulhouse(IS2M)68057 Mulhouse CedexFrance

Hybrid aerogels have been prepared by freeze-drying technique after mixing water dispersions of cellulose microfibers or cellulose nanofibers and silica(SiO2)of type SBA-15(2D-hexagonal).The prepared composites were characterized by different analysis techniques such as SEM,hot-filament,DMA,*** composites are compared to those previously prepared using nanozeolites(NZs)as mineral *** morphology studied by SEM indicated that both systems have different structures,i.e.,individual fibers for cellulose microfibers WP-based aerogels and films for nanofibrillated cellulose NFC-based ones....These differences seem to be driven by the charge of the particles,their aspect ratio and *** hybrid materials exhibit tunable thermal conductivity and mechanical *** thermal conductivity values range between^18 to 28 mW.m^-1.K^-1 and confirm the superinsulation ability of these fibrous *** on the thermal insulation properties and mechanical properties was shown by adjunction of mineral particles to both cellulose-based aerogels by reaching pore size lower than 100 *** significantly reduces the thermal conductivity of the hybrid aerogels as predicted by Knudsen et ***,the addition of mineral fillers to aerogels based on cellulose microfibers induced a significant increase in stiffness.

关键词： Aerogels cellulose microfibers WP TEMPO-oxidized NFC silica lyophilization porosity superinsulation mechanical properties

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Synergistic Effect of Halloyosite Nanotube and Nanocellulose on Thermal and Mechanical Properties of Poly(Ethylmethacrylate-co-Acrylonitrile)Bionanocomposites

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Journal of Renewable Materials 2020年第3期8卷 301-317页

作者： Karima Ben Hamou Amal Kadimi Remo Merijs Meri Sergei Gaidukov hamid kaddami Mustapha Raihane Mouhamed Lahcini Fouad Erchiqui Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials Faculty of Sciences and Technology of MarrakechCadi Ayyad UniversityGuélizAv.A.El KhattabiMarrakechBP 618Morocco Engineering School University of Québec in Abitibi-Témiscamingue445 Boulevard de l'UniversitéRouyn-NorandaJ9X 5E4QuébecCanada Institute of Polymer Materials Riga Technical UniversityKaļķu iela 1Centra rajonsRīgaLV-1658Latvia

This work reports a comprehensive study on poly(Ethylmethacrylateco-Acrylonitrile)Poly(EMA-AN)nanocomposites reinforced with a hybrid mixture of nanoreiforcements based on nanocrystals of cellulose(NCC)(1 or 5%wt)and halloysite nanotubes(HNTs)(1 or 5%wt).The morphology,thermal and mechanical properties of these nanocomposites were *** dispersion of the nanofillers has been shown by scanning electron microscopy.A significant increase of the rubbery modulus and glass transition temperature were obtained upon filler addition,due to the reduction of mobility of the matrix macromolecular *** the other hand,compared with the neat Poly(EMAAN),the storage modulus of the nanocomposites increased by a factor 38 when adding 5 wt%NCC and by 17 for the same concentration of *** properties of ternary nanocomposites were furthers increased resulting from a synergistic effect of these two nanofillers.

关键词： Poly(Ethylmethacrylate-co-Acrylonitrile) nanocrystals cellulose halloysite nanotubes nanocomposites hybrid mechanical properties

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