▎ 摘　　要

Market demand for food packing bags is large. However, low mechanical properties and strong electrostatic damage limit their use. In this work, carrageenan/konjac glucomannan/graphene oxide (GO) nanocomposite films were prepared by solution casting. First, Hummers method was used to obtain GO nanosheets. Then, GO-filled composites (various GO dosages) were fabricated. Surface morphology of films was investigated. After that, stress-strain curves of films were determined, and mechanical properties of films after 80 degrees C thermal aging were studied. In the end, electrical and thermal conductivities of films were measured. GO can play an important role in improving mechanical, antistatic and heat-conducting performances of films. The optimal composite (3.6 wt% GO) can exhibit promising features including a high breaking strength of similar to 130 MPa (similar to 65 MPa after 80 degrees C thermal aging for 30 min), high electrical conductivity of similar to 0.01 S m(-1) at 20 Hz under 1 V and high thermal conductivity of similar to 0.74 W m(-1) K-1 at room temperature. This research will favor a large-scale fabrication of functional and environmental composites for food packaging.