title: Preparation and properties of carboxylated styrene-butadiene rubber/cellulose nanocrystals composites.
abstract: A series of carboxylated styrene-butadiene rubber (XSBR)/cellulose nanocrystals (CNs) latex composites were successfully prepared. The vulcanization process, morphology, dynamic viscoelastic behavior, dynamic mechanical property, thermal and mechanical performance of the XSBR/CNs composites were investigated in detail. The results revealed that CNs were dispersed uniformly in the XSBR matrix and formed a strong filler-filler network. The dynamic mechanical analysis (DMA) showed that the glass transition temperature (T(g)) of XSBR matrix was shifted from 48.45 to 50.64 °C with 3 phr CNs, but decreased from 50.64 to 46.28 °C when further increasing CNs content up to 15 phr. The composites exhibited a significant enhancement in tensile strength (from 16.9 to 24.1 MPa) and tear strength (from 43.5 to 65.2 MPa) with loading CNs from 0 to 15 phr. In addition, the thermo-gravimetric analysis (TGA) showed that the temperature at 5% weight loss of the XSBR/CNs composites decreased slightly with an increase of the CNs content.
authors.affiliation: School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Cao
authors.forename: Chuanhui
authors.initials: C
authors.lastname: Xu
authors.forename: Yuhong
authors.initials: Y
authors.lastname: Liu
authors.forename: Yukun
authors.initials: Y
authors.lastname: Chen
mesh_terms: D002070:Butadienes / Q000138:chemical synthesis / Q000737:chemistry; D002482:Cellulose / Q000138:chemical synthesis / Q000737:chemistry; D003188:Composite Resins / Q000138:chemical synthesis / Q000737:chemistry; D020724:Elastomers / Q000138:chemical synthesis / Q000737:chemistry; D007840:Latex / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry*; D013343:Styrenes / Q000138:chemical synthesis / Q000737:chemistry; D013696:Temperature; D013718:Tensile Strength; D013818:Thermogravimetry
chemical_list: D002070:Butadienes; D003188:Composite Resins; D020724:Elastomers; D007840:Latex; D013343:Styrenes; C065815:styrene-butadiene rubber; D002482:Cellulose