Preparation and coating properties of an acrylic melamine resin containing silicone segments

Abstract

The aim of this study was the preparation of novel water repellent UV curable materials using acrylic modified melamine (AM) and poly-dimethylsiloxane (PDMS). UV curable acrylic melamines containing silicone segments (SiAMs) were synthesized by condensation of methylolmelamine, 2-hydroxyethyl acrylate, and carbinol-modified PDMS. The SiAM films with a 0.3 wt% PDMS segment that were cured by UV irradiation had higher transparency than that of a blended sample. Examination with a scanning electron microscope revealed that the blend sample has cohesion of the silicone segments, while such a phenomenon was not observed in the composite samples (SiAMs). From these results, it was confirmed that aggregation of the silicone segments was prevented by introducing the silicone segments into the acrylic melamine. By introducing 0.3 wt% of PDMS segments into AM, good watershedding properties were confirmed, while several of the most attractive features of AM, such as hardness, adhesion, and refractive index, were maintained.

Flame‐retardant behavior of a phosphorus/silicon compound on polycarbonate

“…In recent years, polymeric materials have been more and more applied in many fields . Polycarbonate (PC), a kind of rapid‐developing thermoplastic resin, is widely used as an amorphous engineering polymer in construction, medical equipment, transport, and other fields due to its outstanding properties, such as high mechanical properties, high flame retardancy, excellent electric properties, and high glass‐transition temperature . However, PC flame retardancy is often required in many fields, especially in electronic applications.…”

Preparation of melamine–formaldehyde resin grafted by (3‐aminopropyl) triethoxysilane for high‐performance hydrophobic materials

“…Physical doping is convenient to operate and economical; however, the interaction between modifiers and MF resin matrix is mainly dominated by van der Waals force which is relatively weak and unstable, so the physicochemical properties of modified MF material are rather unstable and unsustainable. The performance of MF materials obtained by chemical grafting is relative steady and durable; however, the polarity discrepancy between silicon or fluorine monomer with MF resin matrix is obvious and strong, they are difficult to be compatible with and react with each other in aqueous media. No doubt, chemical grafting of silicon or fluorine monomer with MF resin matrix is considered as challenge task in MF resin researches.…”

Revestimentos poliméricos baseados em policarbonato-melamina

“…Revestimentos de carros, máquinas, tubulações, estruturas arquitetônicas são exemplos do emprego destes materiais. [6][7][8][9] Existem diversos trabalhos na literatura sobre revestimentos baseados em sistemas poliéster/melamina e acrílico/melamina, [7][8][9][10][11][12][13][14][15][16][17] sendo que a maioria não fornece informações sobre a estrutura química dos polióis -o que dificulta a compreensão das propriedades mecânicas, químicas e ópticas do ponto de vista estrutural. Contudo, pode-se estimar, com base na literatura, 10,11,16 que as massas molares destes polióis estejam entre 2.000 g • mol −110, 11 e 13.000 g • mol −1 .…”