Abstract
The polylactic acid (PLA) resin Ingeo 4032D was selected as the research object, with a focus on PLA modification by using polymers such as linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE) and ethylene–propylene-diene monomer grafted with glycidyl methacrylate (EPDM-g-GMA), by using fillers such as nano calcium carbonate and zeolite. In order to characterize the deposition effect of Al2O3 on the film surface by plasma-assisted atomic layer deposition, Bio-oriented PLA (BOPLA) with more uniform thickness than blown film was purchased for study. The mechanical properties, friction coefficient, surface contact angle and water vapour transmission rate of the modified PLA film were compared and discussed. The aim was to find out the most influencing factors of film’s water vapour resistance.
Highlights
The results show that the PLA/Al2 O3 structure significantly improves the gas barrier of the film
Pretreatment: PLA film resinwas was produced dried in vacuum drying oven at
The surface properties characterized by the friction coefficient show that most of the film meets the requirements of high-speed filling
Summary
PLApolylactic modification by using suchwas as linear low-density polyethylene (LLDPE), on PLA modification by using polymers such as linear low-density polyethylene high-density high-density polyethylene (HDPE). In order to characterize the to characterize the deposition effect of Al2O3 on the film surface by plasma-assisted atomic layer deposition effect of. Properties, coefficient, surfacefor contact and water properties, friction coefficient, surface contact angle and water vapour transmission rate of the modified vapour transmission rate of the modified PLA film were compared and discussed. The aim was to film were compared and discussed. The aim was to find out the most influencing factors of film’s find out the most influencing factors of film’s water vapour resistance
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