阴离子松香施胶剂的制备及性能
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摘要
采用自制阴离子丙烯酸共聚物乳化剂乳化松香制得阴离子松香施胶剂,所制施胶剂粒径较小,可用作浆内中性施胶剂。结果表明,松香与乳化剂最佳质量比1∶1;最佳施胶工艺:阴离子松香施胶剂用量1%,Al_2(SO_4)_3用量4%,阳离子聚酰胺多胺环氧氯丙烷(PAE)用量0. 05%,pH值在5. 5～7. 0。反向施胶优于正向施胶解决硬水杂质带来的问题;通过扫描电子显微镜(SEM)观察,反向施胶在胶料分布、改善纤维表面裂纹和缺陷等方面更优于正向施胶;本实验所制阴离子松香施胶剂综合性能优于市售阴离子中性松香施胶剂。
Highly dispersed rosin sizing agent was prepared using the self-made anionic acrylic copolymer emulsified rosin,and this rosin latex emulsion had smaller particle size and could be used as neutral sizing agent in pulp. In this paper,the main factors affecting neutral sizing were also studied. The optimum ratio of rosin and emulsifier was 1∶ 1; Optimal sizing conditions were as follows: highly dispersed rosin dosage 1%,Al_2( SO_4)_3 dosage 4%,cationic polyamide polyamine epichlorohydrin( PAE) dosage 0. 05%,p H value was 5. 5 ～7. 0. Reverse sizing was better than normal sizing in solving the problem of hard water impurities. SEM observation indicated that,reverse sizing was better than normal sizing in rosin latex distribution,improving fiber surface cracks and defects,etc. The anionic rosin size had better overall performance than the commercially available neutral rosin size.
Highly dispersed rosin sizing agent was prepared using the self-made anionic acrylic copolymer emulsified rosin,and this rosin latex emulsion had smaller particle size and could be used as neutral sizing agent in pulp. In this paper,the main factors affecting neutral sizing were also studied. The optimum ratio of rosin and emulsifier was 1∶ 1; Optimal sizing conditions were as follows: highly dispersed rosin dosage 1%,Al_2( SO_4)_3 dosage 4%,cationic polyamide polyamine epichlorohydrin( PAE) dosage 0. 05%,p H value was 5. 5 ～7. 0. Reverse sizing was better than normal sizing in solving the problem of hard water impurities. SEM observation indicated that,reverse sizing was better than normal sizing in rosin latex distribution,improving fiber surface cracks and defects,etc. The anionic rosin size had better overall performance than the commercially available neutral rosin size.
引文
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[14]Yang N,Deng Y.Paper sizing agents from micelle-like aggregates of polystyrene-based cationic copolymers[J].Journal of Applied Polymer Science,2000,77(9):2067.
[15]Zhu K,Li X,Wang H,et al.Properties and paper sizing application of waterborne polyurethanemicroemulsions:Effects of extender,cross-linker,and polyol[J].Journal of Applied Polymer Science,2016,133(25):43211.
[2]Du Weimin.The Latest Trends of Sizing Agent Design Technology[J].Paper Chemicals,2007,19(6):64.杜伟民.施胶剂设计技术的最新动向[J].造纸化学品,2007,19(6):64.
[3]Liu Qiong,Wan Jinquan,Ma Yongwen,et al.Preparation and Properties of Anionic Dispersed Rosin Sizing Agent for Recycled Pulp[J].Paper Science and Technology,2007,26(2):37.刘琼,万金泉,马邕文,等.再生纸浆用阴离子分散松香施胶剂的制备与性能研究[J].造纸科学与技术,2007,26(2):37.
[4]Chen Fushan,Wang Songlin.Application Status and Development Trends of Neutral Sizing Agents[J].Paper Chemicals,2010,22(z1):6.陈夫山,王松林.中性施胶剂的应用现状与发展趋势[J].造纸化学品,2010,22(z1):6.
[5]Guan Dan.Synthesis of polymer emulsifier and its application in acrylate emulsion polymerization[D].Suzhou:Suzhou University,2008.管丹.高分子乳化剂的合成及其在丙烯酸酯乳液聚合中的应用[D].苏州:苏州大学,2008.
[6]REN Tianri,SHEN Yiding,FEI Guiqiang,et al.Preparation and Application of Cationic Rosin/AKD Neutral Sizing Agent[J].Transsactions of China Pulp and Paper,2009,24(4):32.任天日,沈一丁,费贵强,等.阳离子松香/AKD中性施胶剂的制备及应用[J].中国造纸学报,2009,24(4):32.
[7]WU Zonghua,CHEN Shaoping,SUN Xiuwu,et al.The Function of Polymer Surfactants in Dispersing Rosin[J].China Pulp&Paper,2004,23(9):18.吴宗华,陈少平,孙秀武,等.高分子表面活性剂在分散松香胶中的功能[J].中国造纸,2004,23(9):18.
[8]Li Dejun,Shen Yiding.Neutral Sizing Agent-High Dispersion Modified Rosin Size[J].Paper&Paper Making,2001(4):41.李德军,沈一丁.高分散改性松香中性施胶剂[J].纸和造纸,2001(4):41.
[9]Inaoka K,Nakata T,Hashiguchi Y.Cationic surface sizing agent and paper coated with the same:US,US 2009272507 A1[P].2009-11-05.
[10]ZHANG Jian,HE Beihai,CHEN Yongju,et al.Anionic Dispersive Rosin Sizing with Attached Agent in Neutral Papermaking Condition[J].China Pulp&Paper,2006,25(5):9.张健,何北海,陈永菊,等.固着剂用于阴离子乳液松香胶中性施胶的初步研究[J].中国造纸,2006,25(5):9.
[11]Porkert,Sebastian.Physico-chemical Processes during Reactive Paper Sizing with Alkenyl Succinic Anhydride(ASA)[C]//Forschungsforum der Hochschule München.2015,5(3):21.
[12]Ozaki Y,Sawatari A.The Studies on the Distribution of Rosin Sizing Agent in the Paper Sheet(Part 1)[J].Japan Tappi Journal,2010,55(7):987.
[13]Wang F,Tanaka H.Aminated poly-N-vinylformamide as a modern retention aid of alkaline paper sizing with acid rosin sizes[J].Journal of Applied Polymer Science,2000,78(10):6.
[14]Yang N,Deng Y.Paper sizing agents from micelle-like aggregates of polystyrene-based cationic copolymers[J].Journal of Applied Polymer Science,2000,77(9):2067.
[15]Zhu K,Li X,Wang H,et al.Properties and paper sizing application of waterborne polyurethanemicroemulsions:Effects of extender,cross-linker,and polyol[J].Journal of Applied Polymer Science,2016,133(25):43211.