1、Additivation of the ethylene–vinyl acetate copolymer (EVA) with maleic

When the EVA/MA/DCP system is additivation with the styrene monomer (St), all compositions grafted maleic anhydride into the EVA chain, suggesting that styrene increases the effectiveness of the degree of grafting.

2、OREVAC® 18211

OREVAC® 18211 is a coextrusion adhesive resin based on a maleic anhydride modified ethylene-vinyl acetate copolymer. OREVAC® 18211 has been designed to develop…

3、Journal of Applied Polymer Science

It was found that grafting reaction of MAH on to EVA could compete with crosslinking reaction of DCP during the modification process. In addition, the introduction of small amount of MAH showed a great effect on reducing gel content by decreasing crosslink reaction.

4、EVA Modified Maleic Anhydride as Tie Layer Resin for Adhesion Between

COACE's R&D and manufactures focus on chemical modified high molecular weight polymers and some inorganic small molecule chemical additives. Most of her products are to be used as compatibilizer for plastic blending compounds, coupling agent for plastic compsite materials, hot-melt ahesive materials, adhesion promoters, and other application.

5、Maleic Anhydride Modified EVA

GNM900V is elastic copolymer resin based EVA by reactive extrusion with maleic anhydride.It is an excellent adhesion promoter and the coupling agent. Typical application:

Effect of modified ethylene vinyl acetate copolymers pour point

The success of EVA graft reaction can be confirmed by the differences of the chemical structure between maleic anhydride derivatives and graft modified copolymers.

FTIR spectra of neat EVA and maleic anhydride modified EVA

The functionalization of the ethylene–vinyl acetate copolymer (EVA) was carried out in an internal mixer, using maleic anhydride (MA), dicumyl peroxide (DCP) and styrene monomer (St) as...

Effects of maleic anhydride grafted ethylene/vinyl acetate

Ternary nanocomposites based on ethylene/vinyl acetate copolymer (EVA), maleic anhydride-grafted EVA (EVAgMA), and nanosilica were prepared in a Haake Rheomixer.

Maleic Anhydride Modified EVA Adhesive Hot Melt

Maleic Anhydride Modified EVA Adhesive Hot Melt COACE K2B is a grafted EVA containing maleic anhydride functional groups, designed as hot melt for polymers and metal.

Grafting maleic anhydride onto EVA and effect on the physical and

It was found that grafting reaction of MAH on to EVA could compete with crosslinking reaction of DCP during the modification process. In addition, the introduction of small amount of MAH showed a great effect on reducing gel content by decreasing crosslink reaction.

In the modern field of polymer materials, EVA (Ethylene-Vinyl Acetate Copolymer) is widely used in various industrial applications due to its unique physical and chemical properties. some drawbacks of EVA, such as low glass transition temperature and poor thermal stability, limit its application in certain fields. To overcome these limitations, researchers have developed multiple modification techniques. Among them, maleic anhydride (MA) modification is an effective method that introduces new functional groups into the EVA molecular chain, thereby improving the material’s mechanical properties, heat resistance, and chemical resistance. This article explores the preparation methods, applications, and potential improvement directions of maleic anhydride-modified EVA resin.

Preparation Methods of Maleic Anhydride-Modified EVA Resin

The preparation process of maleic anhydride-modified EVA resin mainly includes the following steps:

1. Synthesis of EVA: Typically carried out using free radical polymerization.
2. Maleic Anhydride Grafting: Achieved through the copolymerization reaction between maleic anhydride monomers and EVA.
3. End-Capping Treatment: Ensures that maleic anhydride monomers are fully grafted onto the EVA molecular chain, avoiding the formation of undesirable polymer structures.

Applications of Maleic Anhydride-Modified EVA Resin

1. Rubber and Plastic Processing: Adding maleic anhydride-modified EVA resin significantly improves the mechanical strength, heat resistance, and chemical resistance of rubber and plastics, expanding their applications in automotive, electronics, packaging, and other fields.
2. Coatings and Adhesives: Maleic anhydride-modified EVA resin serves as a high-performance base material for coatings and adhesives, offering better adhesion, wear resistance, and flexibility to meet specific industrial needs.
3. Textiles and Carpets: Products made from maleic anhydride-modified EVA resin exhibit excellent antistatic properties and wear resistance, suitable for high-end consumer markets.
4. Medical Devices: With good biocompatibility and biodegradability, maleic anhydride-modified EVA resin can be used to manufacture medical implants and catheters.

Potential Improvement Directions

Despite its superior performance in multiple fields, maleic anhydride-modified EVA resin still faces challenges that require further research and refinement:

1. Interfacial Compatibility: How to further improve the interfacial compatibility between maleic anhydride-modified EVA resin and substrates to enhance the overall performance of composites.
2. Cost Control: While the performance improvements of maleic anhydride-modified EVA resin increase costs, technological innovations are needed to reduce costs and make the product more competitive.
3. Environmental Concerns: Production processes must prioritize environmental protection, ensuring that the use of maleic anhydride monomers meets environmental standards and minimizes pollution.

As an emerging material, maleic anhydride-modified EVA resin has become a hot topic in the field of polymer materials science due to its unique modification technology and broad application prospects. By optimizing preparation methods, further enhancing performance, and reasonably controlling costs, maleic anhydride-modified EVA resin is expected to play a larger role in future industrial applications.