Cellulose nanocrystal as ecofriendly stabilizer for emulsion polymerization and its application for waterborne adhesive

编号 020022803

推送时间 20200302

研究领域 林产化工 

年份 2020 

类型 期刊 

语种 英语

标题 Cellulose nanocrystal as ecofriendly stabilizer for emulsion polymerization and its application for waterborne adhesive

来源期刊 Carbohydrate Polymers

期 第228期

发表时间 20191101

关键词 Cellulose;  Nanocrystal;  Nanocomposite;  Emulsion polymerization;  Waterborne;  Adhesive; 

摘要 Soap-free emulsion polymerization of vinyl acetate (AVM) in the presence of cellulose nanocrystals (CNCs) was performed using persulfate/metabisulfite as initiator. The effect of the addition of MPEG comonomer on the locus of CNCs with respect to polymer particles was investigated. It was shown that the presence of MPEG strongly favors the accumulation of CNCs on the polymer particle thus contributing to a stabilization of polymer particle through Pickering effect. The rheological properties of the dispersion as well as the reinforcing effect of CNCs were also meaningfully affected by the presence of MPEG. For purpose of application, the polyvinyl acetate (PVA)/CNC nanocomposite dispersion was used as binder to produce PVA-based waterborne adhesive for wood. This open the way to produce high-value one pot nanocomposite dispersion ready for use, free from any surfactant likely to be used for waterborne adhesive or coating with higher mechanical performance.

服务人员 尚玮姣

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