1、From renewable biomass to bio

Through molecular design and synthesis, alternative bio-based products with close properties to petroleum-based epoxy resins were exploited, and then bio-based epoxy resins with excellent and unique properties were developed.

2、Recent Development of Functional Bio

This review summarizes the research progress of functional bio-based epoxy resins in recent years.

3、Bio

In recent years, more and more research has been devoted to the preparation of novel epoxy materials to overcome the compromise between toughness and strength and solve plastic waste problems. Among them, the development of bio-based hyperbranched epoxy resins (HERs) is unique and attractive.

Bio

Designing sustainable epoxy resins with intrinsic recyclability and degradability has become vital in polymer science.

Recent Development of Functional Bio

This review summarizes the research progress of functional bio-based epoxy resins in recent years.

Fully Bio‐Based Epoxy Resins from Liquefied Wood for Chemically

Addressing the need for environmentally friendly wood coatings, a recyclable and bio-based epoxy resin has been derived from wood liquefaction and offering properties comparable to commercial coatings.

Advances in the development of biobased epoxy resins: insight into more

Herein is reported the most relevant advances of epoxy resins (ERs) in the past decade, with great emphasis on the replacement of bisphenol A (BPA), leading to the production of renewable-based ERs with good properties.

Sustainable Bio

Significant progress in new bio-based epoxy material development on bio-based epoxy resins, curing agents, and additives, as well as bio-based epoxy formulated products, has been achieved recently not only in fundamental academic studies but also in industrial product development.

Fully bio

In recent years, researchers have successfully synthesized shape memory polymers based on ESO, capitalizing on advancements in bio-based epoxy resin manufacturing techniques.

Recent Development of Functional Bio

To alleviate concerns about the environment and health, the design and synthesis of bio-based epoxy resins using biomass as raw materials have been widely studied in recent decades to replace petroleum-based epoxy resins.

In today's society, with the growing awareness of environmental protection and the deep rooting of sustainable development concepts, research in green chemistry and materials has become a hot topic. Among these, bio-based modified epoxy resins, as a promising green material, have attracted widespread attention. They not only reduce the environmental impact of traditional epoxy resins but also expand their applications in construction, automotive, electronics, and other fields. This paper explores the concept, preparation methods, and application potential of bio-based modified epoxy resins in various sectors.

1. Definition and Characteristics of Bio-based Modified Epoxy Resins

Bio-based modified epoxy resins refer to composite materials whose molecular structures or properties are altered by adding biomass-based compounds (e.g., cellulose, lignin, natural oils). Compared to conventional petroleum-based epoxy resins, they exhibit the following characteristics:

1. Renewability: Derived from renewable resources such as plant fibers and animal fats, these resins help reduce reliance on fossil fuels and lower environmental pollution.
2. Environmental Friendliness: Their production generates fewer byproducts, and waste disposal is simpler, minimizing ecological harm.
3. Performance Advantages: Compared to petrochemical products, bio-based modified epoxies often show superior mechanical properties and thermal stability, meeting specific demands in specialized fields.

2. Preparation Methods for Bio-based Modified Epoxy Resins

The main methods for preparing bio-based modified epoxy resins include:

1. Blending Method: Mixing biomass compounds with epoxy resins to improve compatibility and mechanical performance through physical or chemical means.
2. Grafting Method: Chemically bonding biomass compounds to epoxy polymer chains to form new polymers.
3. Polymerization Method: Using biomass-derived monomers to synthesize epoxy resins with targeted structures via polymerization.
4. Nanotechnology Method: Enhancing the dispersion and compatibility of biomass compounds in epoxy matrices through nanoscale surface modifications.

3. Applications of Bio-based Modified Epoxy Resins

1. Construction: Due to their excellent mechanical and weather resistance properties, these resins are used in high-performance architectural coatings, sealants, and flooring materials.
2. Automotive: In vehicle manufacturing, they produce lightweight, high-strength parts such as engine components and body panels.
3. Electronics: Their electrical insulation and heat resistance make them suitable for encapsulating electronic devices and protecting circuit boards.
4. Aerospace: Bio-based epoxies hold promise for lightweight, high-strength structural components and heat-resistant coatings in aviation and spacecraft.
5. Energy: They serve as insulating materials in renewable energy devices like solar panels and wind turbines.

4. Conclusion and Outlook

As eco-friendly, green materials, bio-based modified epoxy resins offer significant research value and broad application prospects. Although their current production costs are relatively high, technological innovation and scalable manufacturing may enable commercialization in the future. With global emphasis on environmental protection, demand for these resins is expected to grow, fostering new opportunities across industries. We anticipate further advancements in research and expanded applications of bio-based modified epoxy resins in diverse fields.