Enhancement of Adhesion Characteristics of Low-Density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol
نویسندگان
چکیده
The low-density polyethylene/aluminum (LDPE/Al) joint in Tetra Pak provides stability and strength to food packaging, ensures protection against outside moisture, maintains the nutritional values flavors of without need for additives products. However, a poor adhesion LDPE Al, due its non-polar surface, is limiting factor extra polymeric interlayers or surface treatment required. Plasma-assisted grafting with different molecular weight compounds polyethylene glycol (PEG) was used improve LDPE/Al adhesion. It found that this modification contributed significantly wettability as confirmed by contact angle measurements. chemical composition changes after plasma process were observed X-ray photoelectron spectroscopy (XPS) Fourier transform infrared (FTIR). A morphology analyzed scanning electron microscopy (SEM) atomic force (AFM). Adhesion characteristics adhesive joints peel tests. most significant improvement PEG modified achieved using 10.0 wt.% aqueous (6000 M) solution, while resistance increased approximately 54 times comparison untreated LDPE.
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ژورنال
عنوان ژورنال: Polymers
سال: 2021
ISSN: ['2073-4360']
DOI: https://doi.org/10.3390/polym13081309