Synthesis of silicone–acrylic resins and their applications to superweatherable coatings

Abstract

Silicone–acrylic resins were synthesized to prepare superweatherable paints for building materials. The raw materials used were n‐butyl acrylate, methyl methacrylate, and n‐butyl methacrylate as acrylic monomers and 3‐methacryloxypropyltrimethoxysilane (MPTS) as a silicone monomer reactive with the acrylic monomers. Acrylic copolymers were synthesized such that their glass‐transition temperatures were adjusted to 30°C and their MPTS contents were varied to 10, 20, and 30 wt %. As the content of silicone and MPTS increased, average molecular weight and viscosity increased, and thermal stability at high temperatures improved. When we tested the properties of coatings by blending the synthesized silicone–acrylic resins with a white pigment, adhesion was superior with various substrates, and their properties were suitable on the whole. Weatherability was tested by an outdoor exposure test with a weather‐ometer and an accelerated weathering tester, and their results showed that silicone–acrylic resin composed of 30 wt % MPTS was a superweatherable coating. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1614–1623, 2001

Synthesis and Application of Silicone-acrylic Polymer Containing Cationic Groups

“…Polyacrylate and polysiloxane are extremely important materials used in coating, adhesives, impact-resistance plastics, etc [1,2], they are also widely used in preparing for nanofibers [3,4] by electrospinning [5][6][7][8]. Most studies have focused on the composite latex particles prepared from methyl methacrylate(MMA), butal acrylate(BA), styrene(St) and vinyl acetate(VAc), only few reports are available that investigate the system of siloxane and acrylic monomers [9,10].…”

Application of a pyrolysis-GC/MS system incorporating with micro-UV irradiation to rapid evaluation of the weatherability of acrylic coating paints for house exterior walls

“…Weatherability test for silicone-modified acrylates has been reported utilizing outdoor exposure or weather meter method [1]. However, the former tests usually require a relatively long test period up to several years, and the latter also does often several weeks or months.…”

Poly(acrylate/siloxane) hybrid adhesives for polymers with low surface energy

“…Poly(acrylate/silicone) hybrid polymers and adhesives have been discussed before [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. However, none of these works focused on their use for adhesion to substrates with low surface energy such as PE, iPP, or PTFE.…”