DOI: 10.3724/SP.J.1095.2013.30040

Chinese Journal of Applied Chemistry (应用化学) 2013/30:12 PP.1404-1410

Synthesis, Characterization and Properties of the Hybrid Latexes of Polyurethane and Polystyrene-acrylate and Their Application in Laminating Adhesive

The polyurethane-styrene-acrylate(PUSA) hybrid latexes were prepared by emulsion polymerization of a mixture of polyurethane(PU) prepolymer, butyl acrylate and styrene monomers. The obtained PU prepolymer was end capped by vinyl groups based on 1H NMR results. The particles′ diameter was about 150 nm from the TEM. The thermostability of the hybrid latexes was improved when the content of PU was decreased, and the single Tg was located between those of PU and polystyrene-acrylate(PSA). When the resultant hybrid latexes were applied in paper-plastic and plastic-plastic laminating adhesives, the peel strengths were 14.1 N/2.5 cm and 12.2 N/2.5 cm, respectively.

Key words:polyurethane,emulsion polymerization,waterborne hybrid latexes,laminating adhesive

ReleaseDate:2015-06-08 13:47:31

[1] LIU Guojun,ZHANG Guixia,ZENG Hanmin,et al. Preparation of Organic-inorganic Nanocomposite Emulsions Used as High Quality Pressure Sensitive Adhesives[J]. Polym Mater Sci Eng,2007,23(2):54-57(in Chinese).刘国军,张桂霞,曾汉民,等。 聚丙烯酸酯/纳米SiO2有机-无机复合压敏胶乳液的制备[J]. 高分子材料科学与工程,2007,23(2):54-57.

[2] Jiang X B,Zhu X L,Zhang Z G,et al. Determination of Crosslinking and Grafting in Polyurethane-acrylic Hybrid Material and Their Theoretical Calculations[J]. Chem Res Chinese Univ,2011,27(1):154-157.

[3] Degrandi-Contraires E,Lopez A,Reyes Y,et al. High-Shear-Strength Waterborne Polyurethane/Acrylic Soft Adhesives[J]. Macromol Mater Eng,2012,28,DOI:10.1002/mame.201200106.

[4] Lopez A,Degrandi-contraires E,Canetta E,et al. Waterborne Polyurethane-acrylic Hybrid Nanoparticles by Miniemulsion Polymerization:Applications in Pressure-sensitive Adhesives[J]. Langmuir,2011,27:3878-3888.

[5] Chai S L,Jin M M,Tan H M. Comparative Study Between Core-shell and Interpenetrating Network Structure Polyurethane/Polyacrylate Composite Emulsions[J]. Eur Polym J,2008,44:3306-3313.

[6] Zhang J F,Li X F,Shi X H,et al. Synthesis of Core-shell Acrylic polyurethane Hybrid Latex as Binder of Aqueous Pigment Inks for Digital Inkjet Printing[J]. Prog Nat Sci:Mater Int,2012,22(1):71-78.

[7] Lu Y S,Xia Y,Larock R C. Surfactant-free Core-shell Hybrid Latexes from Soybean Oil-based Waterborne Polyurethanes and Poly(styrene-butyl acrylate)[J]. Prog Org Coat,2011,71:336-342.

[8] Zhang S F,Wang R M,He Y F,et al. Waterborne Polyurethane-acrylic Copolymers Crosslinked Core-shell Nanoparticles for Humidity-sensitive Coatings[J]. Prog Org Coat,2013,76:729-735.

[9] XIONG Pingting,LU Deping,HUANG Hongzhi. Advances in Polymerizable Surfactant[J]. Chinese J Polym Bull,2006,(8):14-20(in Chinese).熊娉婷,鲁德平,黄宏志。 可聚合表面活性剂的研究进展[J]. 高分子通报,2006,(8):14-20.

[10] Henry I,Pascault J P,Taha M,et al. Structure and Properties of Polyurethane Acrylate Prepolymers Based on Hydroxy-terminated Polybutadiene[J]. J Appl Polym Sci,2002,83(2):225-233.

[11] Jiang X B,Kong X Z,Zhu X L,et al. Calculation of Grafting and Property Characterization in Polyurethane-acrylic Hybrid Materials Prepared by Emulsion Process[J]. Macromol Chem Phys,2010,211:2201-2210.

[12] Hirose M,Zhou J H,Nagai K. The Structure and Properties of Acrylic-polyurethane Hybrid Emulsions[J]. Prog Org Coat,2000,38:27-34.

[13] Wang C P,Chu F X,Jin L W,et al. Polyurethane-Acrylate Hybrid Latexes from Miniemulsion Polymerization: Effect of Endgroups on Structure and Properties[J]. Polym Adv Technol,2009,20:319-326.

[14] LI Haiyan,ZHANG Xiaolei,YANG Derui. Study on Polyureathane Emulsion Modified by Acrylic Resin and Polysilicon[J]. Chem Ind Eng Prog,2003,22(11):1196-1199(in Chinese).李海燕,张晓镭,杨德瑞。 有机硅丙烯酸酯改性聚氨酯共聚乳液的研究[J]. 化工进展,2003,22(11):1196-1199.

[15] Chai S L,Jin M M. Morphology and Particle Size of Nanograde Polyurethane/Polyacrylate Hybrid Emulsions[J]. J Appl Polym Sci,2009,114:2030-2035.

[16] LIU Jingsong,SHEN Yiding,LAI Xiaojuan. Synthesis and Properties of Waterborne Polyurethane Adhesive Modified by Acrylic Ester[J]. Chem Ind Eng Prog,2010,29(4):699-703(in Chinese).刘敬松,沈一丁,赖小娟。 丙烯酸酯改性水性聚氨酯胶黏剂的制备及性能[J]. 化工进展,2010,29(4):699-703.

[17] Pardini O R,Amalvy J I. FTIR, 1H-NMR Spectra, and Thermal Characterization of Water-based Polyurethane/acrylic Hybrids[J]. J Appl Polym Sci,2008,107:1207-1214.

[18] Gower M D,Shanks R A. The Effect of Varied Monomer Composition on Adhesive Performance and Peeling Master Curves for Acrylic Pressure-sensitive Adhesives[J]. J Appl Polym Sci,2004,93:2909-2917.

[19] LI Yanke,LING Ailian,SANG Hongxun,et al. Study on Aqueous Polyurethane and Acrylic Emulsion Copolymerization[J]. China Adhes,2002,10(2):8-9(in Chinese).李延科,凌爱莲,桑鸿勋,等。 水性聚氨酯与丙烯酸酯共聚乳液的研究[J]. 中国胶粘剂,2002,10(2):8-9.

[20] Kukanja D,Golob J,Zupancic-valant A,et al. The Structure and Properties of Acrylic-polyurethane Hybrid Emulsions and Comparison with Physical Blends[J]. J Appl Polym Sci,2000,78:67-80.

[21] Brown R A,Coogan R G,Fortier D G,et al. Comparing and Contrasting the Properties of Urethane/Acrylic Hybrids with Those of Corresponding Blends of Urethane Dispersions and Acrylic Emulsions[J]. Prog Org Coat,2005,52(01):73-84.