Waterborne Poly(butylene succinate)-Coated Paper for Sustainable Packaging Applications

Abstract

Reported herein is waterborne poly­(butylene succinate) (PBS)-coated paper as a potential biodegradable packaging material. Kraft paper was coated with PBS latex, and the coated paper was evaluated for its water and oil repellency, water vapor barrier performance, and physicomechanical properties. The water resistance (Cobb1800 value = 15.5 ± 0.1 g/m2), oil resistance (kit rating = 12/12), and water vapor transmission rate (112.62 ± 8.04 g/(m2 day) were observed for the coated paper. In addition, the coated paper showed excellent thermal sealing properties. Furthermore, a comparative performance study of our coated paper was performed against multiple commercial benchmarks. The PBS-latex-coated paper showed kit rating performance that matched or surpassed those of commercial benchmarks while having better water resistance than at least two tested commercial benchmarks. The biodegradation study in composting conditions indicates that the one-sided coated paper does not potentially affect the overall biodegradation of the coated paper.

Sustainable Packaging with Waterborne Acrylated Epoxidized Soybean Oil

“…Consequently, it was evident that the paper samples bearing our coatings exhibited enhanced oil resistance relative to their uncoated counterparts. Compared to AESO-emulsion-coated paper in this study with a kit rating 7, the various commercial packaging plastic or paper had kit ratings ranging from 3 to 12 . These findings suggest that cured AESO-coated paper, after being covered, has a moderate oil resistance.…”

“…On the other hand, increasing the thickness of the KP/S via coated materials also can lead to lower mechanical properties. Thus, in turn, contributes to an overall reduction in mechanical properties of the coated papers compared to the uncoated KP. , By evaluating and optimizing these mechanical properties, manufacturers can produce coated papers that meet the specific performance requirements of different packaging applications. This can help ensure that the packaged product is protected from damage, while also helping to reduce waste and improve overall sustainability in the packaging sector.…”

“…However, PE has the potential to form persistent microplastics, while PFAS has carcinogenic concerns. There is a strong need to replace PE and PFAS with bio-based, non-toxic, recyclable, and biodegradable paper coating material. , Researchers have recently devoted enormous efforts toward replacing these non-degradable plastic layers with natural renewable biopolymers, such as zein, starch, chitosan, and so forth. , These biopolymers are degradable, and hence, they pose a much smaller threat to the environment than conventional plastics . Additionally, they can be easily peeled from the surface of the paper, thus facilitating repulping/recycling processes …”

Driving selective upcycling of mixed polyethylene waste with table salt

“…Among the virgin series, the best-performing sample was V3, which showed the lowest Cobb1800 value of 4.75 ± 0.35 g/m 2 and an almost equal value of 4.80 ± 0.56 g/m 2 was exhibited by the R5 sample (the best performer) from the recycled-series. The highest Cobb1800 value among the wax-coated paper samples was 14.15 ± 0.35 g/m 2 shown by sample V5 among tested samples which was still much lower than those of many commercial benchmarks 29 , and paraffin-coated paper, suggesting its applicability as a paper coating. These results show that waxes obtained from recycled plastics have water resistance almost like waxes obtained from virgin polymers, thus suggesting that waxes obtained from waste recycled plastics do not lose their integrity.…”

Degradable Polymeric Waxes for Paper Coating Applications

“…Biodegradable polymers offer potential alternatives to plastics or plastic-coated paper as they do not create any persistent microplastics . Starch, cellulose, and some polyesters are examples of biodegradable/compostable polymers due to the presence of hydrolyzable ester bonds in their structures. − Some examples of biodegradable or compostable polymers include polyhydroxy hexanoate (PHH), polyhydroxy butyrate (PHB), polyhydroxy valerate (PHV), polylactic acid (PLA), and polycaprolactone (PCL) . PLA is an aliphatic polyester that is industrially synthesized via the ring-opening polymerization of lactide especially for obtaining high-molecular-weight PLA .…”