Melamine-Modified Waterborne Polyurethane Resin

1、Crack

Surface cracking is a major issue in amino resin-based flame-retardant coatings, which can be reduced by mixing flexible resins into the coatings. In this study, flexible waterborne polyurethane (WPU) was added into a melamine-modified, urea-formaldehyde, resin-based intumescent flame retardant (MUF-IFR) coating. A molecular chain of WPU was inserted into the MUF network and formed a WPU/MUF ...

2、以水性聚氨酯为辅助树脂的抗裂氨基树脂阻燃涂料,Materials

In this study, flexible waterborne polyurethane (WPU) was added into a melamine-modified, urea-formaldehyde, resin-based intumescent flame retardant (MUF-IFR) coating. A molecular chain of WPU was inserted into the MUF network and formed a WPU/MUF-semi-IPN structure.

3、Novel heat

In our work, the novel heat-resistance UV curable waterborne polyurethane coating was prepared via introducing the rigid triazine ring moiety into the main chain of polyurethane by melamine. Comparing with the unmodified UVWPU film, the heat-resistance, resistance to water and mechanical properties of the modified UVWPU film have great improvements.

The Chemistry of Waterborne Polyurethane Coatings

To explore how our broad portfolio of waterborne polyurethane intermediates can address your unique waterborne polyurethane coating requirements, partner with the expert teams at Gantrade Corporation. Our teams, armed with a wealth of technical knowledge and expertise, can guide you to the best solutions for your applications.

Crack

Advances in waterborne polyurethane matting resins: A review

Water-based or waterborne polyurethane matting resins find extensive application in surface coating to diminish gloss, offering a pleasant tactile experience and a matte aesthetic. This review represents the inaugural effort to consolidate the recent advancements in waterborne polyurethane matting resins, encompassing both physical and chemical matting types. The exploration commences with an ...

Bio

Green and environment-friendly preparation are of the utmost relevance to the development of transparent antismudge coatings. To prepare a waterborne polyurethane (WPU) coating with antismudge property, it is challenging to balance the stability of dispersion and the antismudge property of coating. Herein, we prepare a transparent bio-based WPU coating grafted with a minor proportion of poly ...

Melamine Resins

Hexion provides an extensive spectrum of melamine-based resins, spanning a wide range of applications. These resins find their place in decorative laminates, from countertops to laminate flooring, in the domain of composite wood products such as oriented strand board (OSB), and as enhancers in materials like textiles, tires, and paper.

Rapid UV/thermal curing of waterborne difunctional

In this paper, research was carried out on waterborne melamine oligomers (dMFO) with a difunctional group structure (hydroxymethyl group and allyl group), concentrating on main aspects including the structural design and preparation of melamine resin oligomers, curing methods, and coating properties.

Waterborne Intumescent Fire

For example, Zhou et al. employed a waterborne acrylic-resin-based intumescent fire-retardant coating containing organically modified glass fiber filler, ammonium polyphosphate (APP), melamine (MEL), and pentaerythritol (PER) on a steel structure [151].

Melamine-modified waterborne polyurethane resin is a high-performance polymer material widely used in many fields. This article introduces its definition, preparation methods, performance characteristics, and application prospects.

1. Definition of Melamine-Modified Waterborne Polyurethane Resin

Melamine-modified waterborne polyurethane resin is a novel polymer material synthesized through chemical reactions that integrate melamine as a crosslinker into the polyurethane molecular chain. It exhibits excellent mechanical properties, chemical resistance, and wear resistance, along with good film-forming ability and adhesion. These attributes make it suitable for applications in coatings, adhesives, sealants, and other fields.

2. Preparation Methods of Melamine-Modified Waterborne Polyurethane Resin

Raw Material Preparation: Mix melamine, waterborne polyurethane prepolymer, initiators, crosslinkers, and other raw materials in specified proportions.
Reaction Condition Control: Place the mixture in a reactor and regulate temperature, pressure, and reaction time to facilitate the chemical integration of melamine with the polyurethane prepolymer.
Post-Processing: Filter, wash, and dry the reacted resin to obtain the final product.

3. Performance Characteristics of Melamine-Modified Waterborne Polyurethane Resin

Excellent Mechanical Properties: High strength and toughness enable the resin to withstand significant external forces, making it suitable for manufacturing structural components.
Strong Chemical Resistance: Resistance to various chemicals allows its use in anti-corrosion protection of industrial equipment and pipelines.
Superior Wear Resistance: A smooth surface and low friction coefficient ensure exceptional wear resistance, fitting for production of abrasion-resistant materials.
Good Film-Forming and Adhesive Properties: Forms uniform, dense coatings during curing and demonstrates strong adhesion to diverse substrates, ideal for coatings and adhesive formulations.

4. Application Prospects of Melamine-Modified Waterborne Polyurethane Resin

Coatings: Used in anti-corrosion, decorative, and waterproof coatings, offering broad application potential.
Adhesives: Acts as a high-performance base for adhesives and sealants, meeting demands across various industries.
Composites: Combines with other polymers to create specialized composites, such as bulletproof vests and protective helmets.
New Energy: Applicable in manufacturing solar cells and fuel cells, enhancing device performance and lifespan.

melamine-modified waterborne polyurethane resin, as a high-performance polymer material, holds vast potential in coatings, adhesives, composites, and other fields. With technological advancements and increasing market demand, this resin is expected to play an increasingly critical role in future developments.