Progress in the Degradability of Biodegradable Film Materials for Packaging

Abstract

In today’s world, the problem of “white pollution” is becoming more and more serious, and many countries have paid special attention to this problem, and it has become one of the most important tasks to reduce polymer waste and to protect the environment. Due to the degradability, safety, economy and practicality of biodegradable packaging film materials, biodegradable packaging film materials have become a major trend in the packaging industry to replace traditional packaging film materials, provided that the packaging performance requirements are met. This paper reviews the degradation mechanisms and performance characteristics of biodegradable packaging film materials, such as photodegradation, hydrodegradation, thermo-oxidative degradation and biodegradation, focuses on the research progress of the modification of biodegradable packaging film materials, and summarizes some challenges and bottlenecks of current biodegradable packaging film materials.

Study on morphological, mechanical, thermal, barrier, rheological, and biodegradation properties of poly(butylene adipate‐co‐terephthalate)/thermoplastic starch/poly(propylene carbonate)‐g‐polyurethane biodegradable films

“…Most packaging materials predominantly consist of petrochemicalderived plastics, such as polyethylene, ethylene vinyl acetate, polyamide, polypropylene, polystyrene, and polyethylene terephthalate. 1 These plastics are chosen for their cost-effectiveness, ready availability, and commendable attributes such as good barrier performance, flexibility, strength, and durability. 2 However, the global plastic waste recycling rate, as per the Organization for Economic Co-operation and Development, stands at a mere 9%.…”

Lignin-containing biodegradable UV-blocking films: a review

“…Because of the non-renewability and non-degradability of petroleum-derived plastic, it is urgent to develop biodegradable materials (e.g., cellulose, soy protein, chitosan, starch, gelatin) as its replacement to fulfill the goal of sustainable development. [6][7][8][9][10][11][12][13][14][15] Additionally, UV-absorbents including organic and inorganic materials have been in widespread use for a long period of time. [16][17][18] For instance, benzotriazole and benzophenone possess the advantages of high absorption coefficient and wide absorption wavelength range; besides, low volatility and cost also contribute to their prevalence in sunscreen cream, plastic products, and other industrial fields of UV radiation protection.…”

“…, cellulose, soy protein, chitosan, starch, gelatin) as its replacement to fulfill the goal of sustainable development. 6–15…”

Degradable Green Polymers, Green Nanopolymers and Green Nanocomposites Derived from Natural Systems: Statistics and Headways

“…There is always a curiosity to know the difference between degradable and biodegradable polymer [39]. Degradation refers to the decomposition process that usually involves the breakdown of polymer chains upon exposure to heat, light, moisture and other environmental factors [40]. The result of polymer degradation can be the environmentally harmful microscopic particles [41].…”