Organosilicone modification of allyl methacrylate with speier’s catalyst for waterborne self-matting styrene-acrylic emulsion

“…In general, these emulsion particles with a greatly wider particle diameter distribution developed mechanical instability during the film formation process, thus yielding a micro-rough film surface. When the incident light was cast on this rough polymer film, most incident light experienced absorption, refraction, and multiple reflections and little reflected light was received, leading to a low gloss effect of the acrylic film [ 24 , 25 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of an Aqueous Self-Matting Acrylic Resin with Low Gloss and High Transparency via Controlling Surface Morphology

Yong

Liang

2019

Polymers

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This paper reports on a novel, film-forming acrylic polymer resin that exhibits low-gloss surface and high transparency via controlling film morphology at sub-micron roughness levels. Such microstructure is controlled by means of the copolymerization process increasing the allyl methacrylate (AMA) crosslinker content from 0 to 0.4 wt %. This acrylic resin makes it possible to avoid high loadings of matting agents, while also having good abrasion resistance and soft-touch feeling. Gloss levels of as low as 4 units at 60° incident angle and light transmittance of up to 85% have been achieved. The chemical structure of the aqueous acrylic resin was characterized by ATR-FTIR and NMR spectroscopy. The film morphology and surface roughness were measured by SEM and AFM analysis. The emulsion particle morphology and glass transition temperature were obtained by TEM and DSC, respectively. The effects of the crosslinker content on the light transmittance, glass transition temperature, and thermal degradation stability were also discussed in detail. The characterization results conclude that an acrylic polymer with interesting optical properties and high thermal stability can be obtained, which is desirable for leather applications.

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“…In comparison to acrylic emulsion, the styrene–acrylic emulsion has the characteristics of good performance and low price simultaneously. It is extensively used in adhesives [ 10 ], paper sizing machines [ 11 ], coatings [ 12 , 13 , 14 , 15 ], and other industries [ 16 , 17 ] due to its applicability and cost performance.…”

Section: Introductionmentioning

confidence: 99%

Styrene–Acrylic Emulsion with “Transition Layer” for Damping Coating: Synthesis and Characterization

et al. 2021

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In order to study the dynamic mechanical properties of styrene–acrylic latex with a core/shell structure, a variety of latexes were synthesized by semi-continuous seeded emulsion polymerization based on “particle design” with the same material. The latexes were characterized by rotary viscosimeter, dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM), dynamic mechanical analysis (DMA), and universal testing machine. The effects of difference at the glass transition temperature (Tg) of core and shell and the introduction of the “transition layer” on the damping and mechanical properties of latex film were studied. The results indicate that as the Tg of core and shell gets closer, the better the compatibility of core and shell, from phase separation to phase continuity. Furthermore, the introduction of the “transition layer” can effectively improve the tensile strength and tan δ (max) of the latex film. The tensile strength and maximum loss factor (f = 1 Hz) of latex with the “transition layer” increased by 36.73% and 29.11% respectively compared with the latex without the “transition layer”. This work provides a reference for the design of emulsion for damping coating.

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Organosilicone modification of allyl methacrylate with speier’s catalyst for waterborne self-matting styrene-acrylic emulsion

Cited by 31 publications

References 22 publications

The study of cationic waterborne polyurethanes modified by two different forms of polydimethylsiloxane

The study of cationic waterborne polyurethanes modified by two different forms of polydimethylsiloxane

Synthesis of an Aqueous Self-Matting Acrylic Resin with Low Gloss and High Transparency via Controlling Surface Morphology

Styrene–Acrylic Emulsion with “Transition Layer” for Damping Coating: Synthesis and Characterization

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