title: Lignosulfonate as reinforcement in polyvinyl alcohol film: Mechanical properties and interaction analysis.
abstract: Recently, there has been a growing research interest on renewable composite due to sustainability concerns. This work demonstrated the possibility of using eucalyptus lignosulfonate calcium (HLS) particles as reinforcement in polyvinyl alcohol (PVA) matrix. 41% and 384.7% improvement of pure PVA tensile strength and Young's modulus were achieved with incorporation of 5 wt% HLS. The above results were ascribed to specific intermolecular interactions between HLS and PVA, suggested by the increasing PVA glass transition and crystalline relaxations temperature, depression of melting point with HLS incorporation. Moreover, this interaction was quantitatively determined by q value of -62.4±10.0 in Kwei equation. Additionally, the remarkable red shift of wavenumber corresponding to hydroxyl group also indicated the formation of strong hydrogen bond in HLS/PVA blend. SEM characterization confirmed that HLS/PVA blends are at least miscible.
authors.affiliation: Polymer Research Institute, Sichuan University, Chengdu 610065, PR China; State Key Laboratory of Polymer Material Engineering, Sichuan University, Chengdu 610065, PR China.
authors.forename: De-zhan
authors.initials: DZ
authors.lastname: Ye
authors.affiliation: Polymer Research Institute, Sichuan University, Chengdu 610065, PR China; State Key Laboratory of Polymer Material Engineering, Sichuan University, Chengdu 610065, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Polymer Research Institute, Sichuan University, Chengdu 610065, PR China; State Key Laboratory of Polymer Material Engineering, Sichuan University, Chengdu 610065, PR China.
authors.forename: Xiao-qin
authors.initials: XQ
authors.lastname: Hu
authors.affiliation: Polymer Research Institute, Sichuan University, Chengdu 610065, PR China; State Key Laboratory of Polymer Material Engineering, Sichuan University, Chengdu 610065, PR China.
authors.forename: Ming-hua
authors.initials: MH
authors.lastname: Zhang
authors.affiliation: Polymer Research Institute, Sichuan University, Chengdu 610065, PR China; State Key Laboratory of Polymer Material Engineering, Sichuan University, Chengdu 610065, PR China. Electronic address: zhangxi6352@163.com.
authors.forename: Xi
authors.initials: X
authors.lastname: Zhang
mesh_terms: D006860:Hydrogen Bonding; D008031:Lignin / Q000031:analogs & derivatives* / Q000737:chemistry; D055595:Mechanical Phenomena; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D013696:Temperature
chemical_list: C001545:lignosulfuric acid; D011142:Polyvinyl Alcohol; D008031:Lignin
keywords: Lignosulfonate; Polyvinyl alcohol; Reinforcement