1、Applications of Modified Epoxy Resin Primer
Experimental results on modified epoxy resins are collectively summarized, which focus on the structure, curing, and alternate methods for modification of epoxy resins.
2、Preparation of modified epoxy resin with high hydrophobicity, low
These comprehensive performances underscore the potential of PDMS-GE oligomers in significantly improving epoxy resin properties. When the loadings of PDMS-GE oligomers are less than 5 wt%, PDMS-GE with a lower degree of polymerization can improve the toughness of epoxy resins.
3、Epoxy Additives and Polyamides
Complex modified amines and polyamides capable of emulsifying and curing liquid epoxy resins at ambient temperature. Also used with solid resins including a high molecular weight waterborne dispersion included in this product guide.
Silicone Modified Epoxy Resins with Enhanced Chemical Resistance
Investigation of silicone modification of two different epoxy resins: DGEBA Bisphenol-A type, (aromatic structure) Hydrogenated Diphenylpropane (aliphatic structure)
Modified Epoxy Adhesives and Primers
Synthesis of urethane-modified aliphatic epoxy using a greenhouse gas for epoxy composites with tunable properties: Toughened polymer, elastomer,and pressure-sensitive adhesive [J] .
Preparation and Application of Dimer Acid Modified Epoxy Resin
Abstract: A modified epoxy resin is prepared from dimer acid (EJS), 1, 6-hexanedioldiglycidylether (1, 6-HDE) and bisphenol A type epoxy resin (E51) wherein Both EJS and 1, 6-HDE has long aliphatic flexible chain segments.
Alkoxysilane oligomer modified epoxide primers
The bisphenol-A based epoxide, the epoxy phosphate, and the epoxy ester were all modified with tetraethylorthosilicate (TEOS) oligomers, which were prepared through the hydrolysis and condensation of TEOS monomer with water under acidic condition.
Improving Epoxy Resin Performance Using PPG and MDI by One
In this study, epoxy resin was modified with MDI and PPG, compared with the traditional polyurethane prepolymer modification, and the effect of the modifier addition on the mechanical properties of epoxy resin was discussed.
Reactive Modified Epoxy Resin and Its Miscible Blends Based on Recycled
The curing kinetics of the pure reactive modified epoxy resin (baseline) and its mixtures with RO of different concentrations were investigated under both isothermal and nonisothermal conditions using small amplitude oscillatory shear flow.
Starting Formulation
Resin formulations that contain these elastomer modified epoxy resins are typically processed as hot melts, but their use can be limited by the very viscous nature of the epoxy-elastomer adduct.
In modern industrial and construction fields, epoxy primers, as one of the critical materials, directly influence the adhesion, durability, and overall quality of coatings. Modified resins, a vital component of epoxy primers, play a pivotal role in enhancing the performance of the entire coating system. This article explores the role and application of modified resins in epoxy primers.
Epoxy resins are high-molecular-weight compounds known for their chemical stability, thermal resistance, and mechanical strength, widely used in electronics, automotive, aerospace, and other sectors. pristine epoxy resins cannot meet the demands of all application scenarios, particularly in environments requiring strong adhesion and chemical resistance. Consequently, modifying epoxy resins to improve their properties has become a key focus of research.
Modified resins are typically achieved through the addition of functional fillers, additives, or via methods such as copolymerization and crosslinking. These modifications significantly enhance the physical and chemical properties of epoxy resins, tailoring them to specific application environments.
For example, to improve adhesion, inorganic fillers like aluminum hydroxide or magnesium hydroxide can be incorporated. These fillers interact effectively with the epoxy matrix, strengthening the coating’s adhesion. Additionally, fillers reduce porosity and refine surface roughness, further boosting overall coating performance.
Beyond fillers, additives are indispensable for modified resins. Common additives include curing accelerators, UV absorbers, and antioxidants. Adjusting their ratios and types optimizes the curing process, enhancing weatherability and aging resistance.
Copolymerization involves synthesizing new polymers from two or more monomers. Introducing copolymers such as polyurethane or polyimide into epoxy systems imparts flexibility, impact resistance, and heat resistance while retaining epoxy’s high strength.
Crosslinking, achieved through chemical bonding between molecular chains, markedly improves mechanical and thermal properties. Crosslinking agents (e.g., trifunctional compounds) create a three-dimensional network structure, enabling coatings to withstand higher stress without fracturing.
combining epoxy resins with other resins (e.g., polyurethane or polyester) leverages complementary advantages. This hybrid approach maintains epoxy’s core benefits while improving processability and overall performance.
the application of modified resins in epoxy primers is a crucial research direction in coating science. Appropriate modification of resins significantly enhances epoxy primer performance, meeting diverse application needs. With ongoing advancements in material development and application technologies, modified resins will play an increasingly vital role in epoxy primers, driving sustained innovation in the coatings industry.
