成膜助剂对核壳结构乳胶粒子成膜过程的影响

穆元春;李晓晨;邱藤;何立凡;张胜文;李效玉

北京化工大学学报(自然科学版) ›› 2011, Vol. 38 ›› Issue (3) : 44-49.

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北京化工大学学报(自然科学版) ›› 2011, Vol. 38 ›› Issue (3) : 44-49.
材料科学与工程

成膜助剂对核壳结构乳胶粒子成膜过程的影响

  • 穆元春;李晓晨;邱藤;何立凡;张胜文;李效玉
作者信息 +

The study on the film formation of the core-shell latex by using the coalescing agent

  • MU YuanChun;LI XiaoChen;QIU Teng;HE LiFan;ZHANG ShengWen;LI XiaoYu
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摘要

以核壳结构丙烯酸酯乳液为研究对象,采用扩散波光谱技术(diffusing-wave spectroscopy, DWS)对成膜助剂二丙二醇丁醚(DPNB)在乳液成膜过程的作用机理进行了研究。通过获取乳胶粒子在成膜过程中多级动态散射光的散斑干涉波动频率随时间的变化规律,确定DPNB在粒子相互排列阶段就开始起作用,且随着DPNB用量的增加,谱图由多峰变为双峰,最终呈现单峰;结合最低成膜温度(MFFT)、动态光散射(DLS)、原子力显微镜(AFM)等仪器分析发现,得到适用于本体系成膜助剂的最佳使用量为7%~8%(质量分数),在该成膜助剂用量下粒子边界融合充分,从宏观上表现为连续漆膜。

Abstract

A core-shell structure acrylic emulsion used in the industrial production of waterborne wood coatings has been investigated by diffusing-wave spectroscopy (DWS) and the film formation processes of the emulsion particles were studied using dipropylene glycol n-butyl ether (DPNB) as co-coalescing agent. The speckle rate of multi-level dynamic light scattering during the film-forming process was measured. The effect of co-coalescing agent on the particle arrangement was evaluated: As the DPNB concentration was increased, the DWS spectra changed from multi-peak to two-peak, and finally to a single peak. By means of minimum film formation temperature (MFFT) measurements, dynamic light scattering (DLS) and atomic force microscopy (AFM), the optimum dosage of the DPNB in the emulsion was found to be 7%-8%. The particle boundary merged and then formed into continuous films with the optimum dosage of the co-coalescing agent.

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穆元春;李晓晨;邱藤;何立凡;张胜文;李效玉. 成膜助剂对核壳结构乳胶粒子成膜过程的影响[J]. 北京化工大学学报(自然科学版), 2011, 38(3): 44-49
MU YuanChun;LI XiaoChen;QIU Teng;HE LiFan;ZHANG ShengWen;LI XiaoYu. The study on the film formation of the core-shell latex by using the coalescing agent[J]. Journal of Beijing University of Chemical Technology, 2011, 38(3): 44-49

参考文献

[1]贺宏彬, 王晓光, 宋阳, 等. 水性木器涂料的研究进展[J]. 涂料工业, 2006, 36(4): 45-49. 
He H B, Wang X G, Song Y, et al. Progress of research in waterborne wood coatings[J]. Paint & Coatings Industry, 2006, 36(4): 45-49. (in Chinese)

[2]魏丽敏, 王嘉图, 罗文飞. 自交联醋苯丙防水乳液的制备与性能研究[J]. 涂料工业, 2008, 38(4): 26-28, 31. 
Wei L M, Wang J T, Luo W F. Preparation and study of self-crosslink VAc/St/BA water resistant emulsion [J]. Paint & Coatings Industry, 2008, 38(4): 26-28, 31. (in Chinese)

[3]吴俊. 成膜助剂在高Tg乳液木器漆中的应用[J]. 涂料工业, 2010, 40(3): 71-74. 
Wu J. Application of film forming additive in industry wood coatings based on high Tg emulsion[J]. Paint & Coatings Industry, 2010, 40(3): 71-74. (in Chinese)
[4]崔嘉敏, 张胜文, 何立凡, 等. 成膜助剂在多层核/壳丙烯酸酯乳液中的应用[J]. 涂料工业, 2008, 38(10): 19-22.
Cui J M, Zhang S W, He L F, et al. Application of coalescents in Multi-Core-Shell structure acrylate emulsion[J]. Paint & Coatings Industry, 2008, 38(10): 19-22. (in Chinese)
[5]殷耀兵, 李国强, 管文超. 乳液涂料成膜过程中成膜助剂的挥发[J]. 涂料工业, 2007, 37(8): 20-22. 
Yin Y B, Li G Q, Guan W C. Evaporation of coalescents during the film formation of emulsion coatings[J]. Paint & Coatings Industry, 2007, 37(8): 20-22. (in Chinese)
[6]Sherman Jr R L, Ford W T. Small core/thick shell polystyrene/poly(methyl methacrylate) latexes[J]. Industrial & Engineering Chemistry Research, 2005, 44: 8538-8541. 
[7]Aguiar A, Gonzalez Villegas S, Rabelero M, et al. Core-shell polymers with improved mechanical properties prepared by microemulsion polymerization[J]. Macromolecules, 1999, 32: 6767-6771. 
[8]Mahdavian A R, Ashjari M, Mobarakeh H S. Nanocomposite particles with core-shell morphology. Ⅰ. Preparation and characterization of Fe3O4 poly(butyl acrylate-styrene) particles via miniemulsion polymerization[J]. Journal of Applied Polymer Science, 2008, 110: 1242-1249. 
[9]Jonsson J E, Karlsson O J, Hassander H, et al. Semi-continuous emulsion polymerization of styrene in the presence of poly(methyl methacrylate) seed particles. Polymerization conditions giving coreshell particles[J]. European Polymer Journal, 2007, 43: 1322-1332.
[10]Liu W J, Zheng R, He Z C. Onestage preparation of PSt/PNVP Core/Shell nanoparticles via interfacial-initiated microemulsion copolymerization [J]. Polymer Bulletin, 2008, 61: 27-34. 
[11]张胜文, 邱藤, 俸艳芸, 等. 乳液涂膜开放时间的扩散波光谱研究[J]. 涂料工业, 2010, 40(1): 12-15. 
Zhang S W, Qiu T, Feng Y Y, et al. Study on the film open time of emulsion by diffusing-wave spectroscopy[J]. Paint & Coatings Industry, 2010, 40(1): 12-15. (in Chinese)
[12]Colombini D, Ljungberg N, Hassander H, et al. The effect of the polymerization route on the amount of interphase in structured latex particles and their corresponding films[J]. Polymer, 2005, 46: 1295-1308. 
[13]Adler H J, Jahny K, VogtBirnbrich B. Polyurethane macromers—new building blocks for acrylic hybrid emulsion with outstanding performance[J]. Progress in Organic Coatings, 2001, 43: 251-257. 
[14]Stefan S, Katharina L, Gunter L, et al. Microheterogeneities of core-shell latexes probed by 1H spin diffusion and transmission electron microscopy[J]. Macromolecular Chemistry and Physics, 1995, 196: 985-993. 
[15]Jonsson J E L, Hassander H, Jansson L H, et al. Morphology of two-phase polystyrene/poly(methyl methacrylate) latex particles prepared under different polymerization conditions[J]. Macromolecules, 1991, 24: 126-131. 
[16]Kirsch S, Doerk A, Bartsch E, et al. Synthesis and characterization of highly crosslinked, monodisperse core-shell and inverted core-shell colloidal particles. Polystyrene/poly(tert-butyl acrylate) core-shell and inverse core-shell particles[J]. Macromolecules, 1999, 32: 4508-4518. 
[17]Gonzalez Ortiz L J, Asua J M. Development of particle morphology in emulsion polymerization. 3. cluster nucleation and dynamics in polymerizing systems[J]. Macromolecules, 1996, 29: 4520-4527. 
[18]Landfester K, Spiess H W. Characterization of interphases in core-shell latexes by solidstate NMR[J]. Acta Polymerica, 1998, 49: 451-464. 
[19]Mu Y C, Qiu T, Li X Y. Monodisperse and multilayer core-shell latex via surface cross-linking emulsion polymerization[J]. Materials Letters, 2009, 63: 1614-1617.

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