Abstract
This paper compares the properties of iPP based composites and PLA based biocomposites using 5% of ZnO particles or ZnO particles coated with stearic acid as filler. In particular, the effect of coating on the UV stability, thermostability, mechanical, barrier, and antibacterial properties of the polymer matrix were compared and related to the dispersion and distribution of the loads in the polymer matrix and the strength of the adhesion between the matrix and the particles. This survey demonstrated that, among the reported systems, iPP/5%ZnOc and PLA/5%ZnO films are the most suitable active materials for potential application in the active food packaging field.
Highlights
Nano- and micro-technologies are applicable in food packaging to improve packaging performance such as gas, moisture, UV and volatile barriers, mechanical strength, heat resistance, flame retardancy, etc. [1,2,3,4,5,6,7]
This paper reports the results obtained using 5% of zinc oxide (ZnO) particles and of ZnO particles coated (ZnOc) with stearic acid in order to modify the characteristics of two polymers, one derived by oil, isotactic polypropylene, and the other derived from renewable resources, polylactide acid (PLA), largely used in the field of food packaging [8,9,10,35,36,37]
All systems composites based on iPP and PLA matrix
Summary
Nano- and micro-technologies are applicable in food packaging to improve packaging performance such as gas, moisture, UV and volatile barriers, mechanical strength, heat resistance, flame retardancy, etc. [1,2,3,4,5,6,7]. [1,2,3,4,5,6,7] Application of these technologies in food packaging is, considered highly promising since these technologies could improve safety and quality of food and the research is oriented to materials with increased mechanical properties and reduced permeability and those having antimicrobial properties [8,9,10,11,12,13,14,15,16,17]. Recent studies confirm the efficacy of ZnO particles as antimicrobial agents when used in thermoplastic polymers [27,28,29,30]. We analyze how the distribution and dispersion of the ZnO particles, coated or not, and their adhesion to the two different matrices (iPP and PLA) affect the UV stability; thermostability; and mechanical, barrier, and antibacterial properties
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
