Preparation and properties of urethane/acrylate composite by emulsion polymerization technique

Athawale, Vilas D.; Kulkarni, Mona A.

doi:10.1016/j.porgcoat.2009.03.004

Cited by 83 publications

(58 citation statements)

References 13 publications

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“…However, in many cases, physical blending cannot achieve the fully compatibility between the two systems, which leads that the excellent properties of both components are not well represented as expected [20][21][22]. Therefore, the formation of hybrid latexes may be a good choice to promote the homogeneity of two systems [23].…”

Section: Polyacrylate Latex Modified By Polyurethanementioning

confidence: 99%

“…Therefore, the formation of hybrid latexes may be a good choice to promote the homogeneity of two systems [23]. For example, Athawale et al [20] prepared polyurethane-modified polyacrylate hybrid latexes by seeded emulsion polymerization using a mixture of acrylic monomers in the presence of polyurethane latex. At the same time, the physical blends were also prepared by mixing polyacrylate latex and polyurethane latex.…”

Section: Polyacrylate Latex Modified By Polyurethanementioning

confidence: 99%

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Recent advances in the modification of polyacrylate latexes

Bao

Zhang

et al. 2015

J Mater Sci

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Polyacrylate latexes present good film-forming property, and therefore are used in a wide range of applications including coatings, adhesives, additives for paper, textiles, wood, and leather. However, some drawbacks, such as poor elasticity and low hardness have restricted their applications. This review summarizes recent development of polyacrylate latexes modified by polyurethane, organic fluorine, and inorganic nanoparticles, separately, which most often exhibit superior properties to those of their individual components. For each modification method, a comment is given based on our knowledge and related research experience. At last, some perspectives on the future research and development of modification of polyacrylate latexes are concluded.

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Section: Polyacrylate Latex Modified By Polyurethanementioning

confidence: 99%

Section: Polyacrylate Latex Modified By Polyurethanementioning

confidence: 99%

Recent advances in the modification of polyacrylate latexes

Bao

Zhang

et al. 2015

J Mater Sci

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“…The absorption peak at 3353 cm 21 and 1719 cm 21 can be ascribed to the stretching vibration of hydrogen-bonded -NH. 27,28 Before UV curing, the absorption peaks of the C@C double band at 1635 cm 21 (C@C), 1411 cm 21 (@CH 2 ), and 809 cm 21 (@CH) 19,29,30 are observed, suggesting that UWPU is functionalized with vinyl groups. It is worthy to note that the characteristic peaks of the vinyl groups disappear after UV-curing, indicating the crosslinking reaction among vinyl groups.…”

Section: Characterization Of Uwpu Dispersions and Filmsmentioning

confidence: 99%

Preparation and property of waterborne UV‐curable chain‐extended polyurethane surface sizing agent: Strengthening and waterproofing mechanism for cellulose fiber paper

Wang

Fan

Fei

et al. 2015

J of Applied Polymer Sci

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Waterborne UV-curable polyurethane (UWPU) dispersions with different hydrophilicity and functionalities were prepared by varying the content of dimethylol butanoic acid (DMBA) and pentaerythritol triacrylate (PETA). And linear and cyclic chain extenders with different functionalities were also incorporated into the UWPU backbone, including isophorone diamine (IPDA), diethylene triamine (DETA), and ethylene diamine (EDA). Effects of DMBA content, PETA content, photoinitiator content, UV curing time, chain extender on the properties of UWPU dispersions and films, as well as the properties of the unsized and sized paper were investigated. The water resistance and mechanical properties of sized paper were greatly relied on the particle size, the molecular weight, the croslinking density, and penetrability of UWPU. UWPU dispersion chain extended with IPDA (IPDA-UWPU) displayed smaller particle size than that of UWPU. The paper sized with IPDA-UWPU was endowed with best water resistance, tensile strength, folding strength and surface strength. XPS depth analysis revealed that IPDA-UWPU exhibited better penetrability into the paper substrate than UWPU. SEM and AFM demonstrated that the smoothness of sized paper was improved, and the bond strength between fibers was enhanced. The obtained UWPU could be directly used as an effective and fast drying surface sizing agent for cellulose fiber paper.

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“…Anionic PUD based on glycolyzed products with molar ratio PET/glycol, 1:10, were prepared by prepolymer mixing method in two steps: synthesis of NCO-terminated prepolymers and the preparation of dispersions by introducing anionic centers to aid dispersions (Athawale & Kulkarni, 2009). The prepolymer mixing method has been developed adjusting the molar ratio of DMPA to IPDI as 1:3, which was increased compared to the previous procedure.…”

Section: Synthesis Of Pud Based On Glycolyzed Products With Molar Ratmentioning

confidence: 99%