title: CTMP-based cellulose fibers modified with core-shell latex for reinforcing biocomposites.
abstract: The toughening of cellulose fiber reinforced polypropylene (PP) was performed via adsorbing the cationic latex with core-shell structure onto chemithermomechanical pulp (CTMP) fibers as reinforcements, which is a novel approach for rendering the surface of cellulose fibers elastomeric. The mechanical, morphological and thermal properties of the resulting biocomposites, containing 40% (wt) of the modified fibers, were investigated. The results showed that with the increasing of the latex dosage up to 2% (wt on dry CTMP fibers), the impact, tensile and flexural strengths of the modified CTMP/PP biocomposites were significantly increased. The toughening mechanism was discussed based on the retarding of crack propagation and the promoting of crystallization of PP matrix (as revealed by DSC characterization). The overall performance of the biocomposite demonstrated that cationic latex-modified CTMP fiber is very effective in reinforcing thermoplastic-based biocomposites along with the synergetic effect on enhancing crystallinity of polymer matrix.
authors.affiliation: Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
authors.forename: Yuanfeng
authors.initials: Y
authors.lastname: Pan
authors.forename: Huining
authors.initials: H
authors.lastname: Xiao
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhao
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Wang
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D000327:Adsorption; D002482:Cellulose / Q000737:chemistry*; D003460:Crystallization; D007840:Latex / Q000737:chemistry*; D008768:Methylmethacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D011126:Polypropylenes / Q000737:chemistry*; D020058:Styrene / Q000737:chemistry; D013718:Tensile Strength
chemical_list: D000180:Acrylic Resins; D007840:Latex; D008768:Methylmethacrylates; D011126:Polypropylenes; C478962:poly(2-ethylhexylacrylate); C060877:Dakril 4B; D020058:Styrene; D002482:Cellulose