1、Principles of Biodegradable Resin Modification

The core of biodegradable resin modification lies in incorporating specific bio-based components or adopting specialized modification methods to enable resins to rapidly and completely decompose into water and carbon dioxide under specific conditions, thereby reducing environmental pollution.

2、Plant

The figure illustrates the key stages involved, including fiber placement, resin application, manual consolidation using rollers, and ambient or thermal curing. This visual aid reinforces the operational principles of the method and highlights its relevance in the processing of plant-fiber-reinforced biocomposites. Figure 5.

3、Chemical modification of polysaccharides for sustainable bioplastics

This review outlines the common methods and design principles employed in chemical modification, network structure modulation, and processing strategies for polysaccharide feedstocks.

4、Recent advances in biodegradable polymers for sustainable applications

In this article, biodegradable polymers, treatment, composites, blending and modeling are studied. Environmental fate and assessment of biodegradable polymers are discussed in detail.

5、Surface Modification of Biodegradable Polymers

The methods selected for modification of polymer surface invariably impacts the surface properties of the polymer without altering the bulk property. In this chapter, several methods used for the modification of biodegradable polymer surfaces are described.

Recent advances in biodegradable polymer blends and their biocomposites

While numerous reviews have focused on biodegradable polymer blends, this article offers a unique contribution by comprehensively examining both biodegradable polymer blends and their reinforced biocomposites within a single review, an area that has seen limited coverage in recent years.

Review of the Synthesis and Degradation Mechanisms of Some

Biodegradable polymers within natural habitats predominantly undergo degradation mediated by microorganisms. These microorganisms secrete enzymes that cleave long-chain polymers into smaller fragments for metabolic assimilation.

Sustainable biobased composites for advanced applications: recent

We initially review the overall characteristic including, the extraction, chemical composition, and physical and mechanical properties of the most popular biopolymers and biofibers (based on natural and synthetic resources) employed for fabricating biocomposites.

Modification and Processing of Biodegradable Polymers

Biodegradable polymers like any other polymer can be processed using conventional techniques such as injection molding, extrusion, and compression molding. Furthermore using appropriate methods of modification, new or improved properties of materials can be obtained.

Biodegradable Resin Modification Solutions

The core of biodegradable resin modification lies in incorporating specific bio-based components or adopting specialized modification methods to enable resins to rapidly and completely decompose into water and carbon dioxide under specific conditions, thereby reducing environmental pollution.

Principles of Biodegradable Resin Modification

With the growing severity of global environmental issues, plastic pollution has become a problem that cannot be ignored. Traditional plastic materials are difficult to degrade naturally, causing significant damage to ecosystems. developing biodegradable resins is key to resolving this issue. This article introduces the principles of modifying biodegradable resins and how such modifications can enhance their biodegradation performance.

1. Definition and Classification of Biodegradable Resins

Biodegradable resins refer to a class of materials that can be decomposed into harmless substances by microorganisms or plants under specific conditions. Based on their origin and composition, biodegradable resins are divided into two categories: natural biodegradable resins and synthetic biodegradable resins. Natural biodegradable resins primarily derive from biomass resources, such as corn starch, sugarcane residue, and seaweed. Synthetic biodegradable resins are chemically synthesized polymers, including polylactic acid (PLA), polyhydroxybutyrate (PHB), and others.

2. Principles of Biodegradable Resin Modification

1. Introduction of Biodegradable Moieties To improve biodegradation performance, biodegradable functional groups (e.g., carboxyl, hydroxyl, or carbonyl groups) can be incorporated into the resin’s molecular structure through methods like copolymerization or grafting. These groups reduce the resin’s non-biodegradable properties and enhance its susceptibility to microbial breakdown.

2. Incorporation of Photosensitizers Photosensitizers generate free radicals under light exposure, initiating polymer chain cleavage and accelerating biodegradation. By introducing compounds like benzotriazoles or thiophenes into the resin, its photo-induced degradation rate can be significantly increased.

3. Addition of Crosslinking Agents Crosslinking agents form networks within the resin, improving mechanical strength and thermal stability. excessive crosslinking hinders biodegradation, so careful selection and concentration control of these agents are critical.

4. Integration of Antimicrobial Agents Antimicrobial agents inhibit microbial growth, reducing surface adhesion and degradation. Quaternary ammonium salts or organic acids are commonly used to modulate the resin’s interaction with microorganisms.

3. Applications of Modified Biodegradable Resins

1. Packaging Materials Modified resins can produce biodegradable films for food and pharmaceutical packaging. By combining photosensitizers and crosslinking agents, these films retain mechanical integrity while minimizing environmental impact.

2. Construction Materials Antimicrobial and crosslinked resins enable the creation of biodegradable concrete or wood alternatives, reducing construction waste and promoting sustainable building practices.

3. Agricultural Products Light-resistant and crosslinked resins can be used to manufacture biodegradable mulch films. These films mitigate soil erosion, prevent fertilizer runoff, and improve crop yields.

Modifying biodegradable resins is a vital strategy for addressing plastic pollution. By incorporating biodegradable moieties, photosensitizers, crosslinking agents, and antimicrobial agents, resin performance can be tailored for efficient degradation. Although still evolving, these technologies hold promise for developing eco-friendly plastic substitutes in the future.