Study on the Preparation and Property of LDPE/Aluminum Silicate Zeolite Blend Film

Ethylene is plant hormones, which can promote postharvest fruit mature and age rotten. In fresh-keeping packaging of fruit and vegetable to achieve safety packaging and timely remove ethylene in the wrapper and to extend shelf life, this study were prepared by melting blend weight ratio of zeolite and LDPE were 0 / 100, 2 / 100, 4 / 100, 6 / 100, 8 / 100, five different blending film, and the rub resistance and tensile properties, DSC thermodynamic performance, blocking properties and adsorption performance of ethylene gases of these five kinds of film are studied. With the increase of the content of zeolite the friction coefficient and the tensile strength of the Blend film first increased and then decreased. DSC differential thermal analysis showed that the addition of the zeolite does not have effect on the thermal stability of the blend film. but with the increase of the zeolite content , the crystallinity of the film is reduced ,and the barrier property is declined.