In order to obtain elastomeric composites with both mechanical and self-healing properties,a series of CNC/GENR composites based on the interfacial hydrogen bonding between the hydroxyl groups on the surface of CNC and the hydroxyl and carboxyl groups on the molecular chain of GENR were prepared by adding different mass fractions of cellulose nano(CNC)to the glycine-modified epoxidized natural rubber(GENR)matrix,respectively.The interfacial hydrogen bonding,mechanical strength and self-healing properties of CNC/GENR composites were characterized and analyzed by X-ray photoelectron spectroscopy,scanning electron microscopy,universal tensile testing machine,etc.The results show that the introduction of CNC significantly improve the mechanical properties of epoxidized natural rubber.When the addition mass fraction is 10％,the composites possessed excellent mechanical and self-healing properties,with tensile strength of 4.4 MPa,elongation at break of 1500％,and self-healing efficiency of 90％,which has increased 2 times,0.93 times and 1.43 times,respectively,compared with the samples without the addition of CNC.The CNC/GENR composites achieve the goal of simultaneous improving the mechanical properties and self-healing properties of the composites.
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