以超临界流体法制备聚甲基丙烯酸甲酯（PMMA）-CaCO3粉末涂料,应用于纸张表面干法处理技术。为了解决无机颜料与有机胶黏剂界面结合、均匀分散等问题,探究了用硅烷偶联剂KH-570对纳米碳酸钙进行改性。实验考察了反应温度和改性CaCO3用量对制备的无水相涂料性能的影响,通过FT-IR、TG等对改性后CaCO3进行表征,利用GPC-十八角度激光光散射联用技术、TG、SEM等对制备的粉末涂料进行表征。实验表明,与未改性的纳米Ca-CO3相比,改性CaCO3与PMMA粉末涂料颗粒分布均匀,界面结合和分散状况基本能满足纸张表面干法处理的要求。
Polymethyl methacrylate（PMMA）-CaCO3 powdery coating was made in the method of supercritical fluid and used in the dry surface treatment of paper. In order to solve the problems of combination and dispersion with PMMA, nano-calcium carbonate particles well dispersed in ethanol were modified by silane coupling agent KH-570. The effects of the reaction temperature and amount of modified calcium carbonate on the poly- merization of MMA were discussed,the modified CaCO3 was characterized by FT-IR and TGA, and the powdery coating particles were systematically investigated by GPC, TGA and SEM methods. The experimental results indicated that the particle size of PMMA was smaller,which can be used to dry surface treatment of paper coating. From SEM observation,it was found that the modified calcium granules carbonate were able to evenly disperse and embedded in the PMMA and didn＇t show conglomeration. Moreover, the interracial bonds and dispersion situation of water-free powdery coating particles were fairly well.
参考文献
| [1] | 张运展.加工纸与特种纸[M].北京:中国轻工业出版社,2008:89-97. |
| [2] | Maijala J;Putk isto K;Gron J .[J].Tappi Journal,2004,3(05):20. |
| [3] | 祝红丽,杨仁党,杨飞,吴朝军,陈克复.纸张干法涂料制备和干法涂布技术[J].中国造纸学报,2008(01):106-110. |
| [4] | 李建文.干法表面涂布纸张涂层的构成[J].造纸化学品,2004(06):31-34. |
| [5] | Putkisto K;Maijala J;Gron J et al.[J].Nordic Pulp and Paper Research Journal,2003,18(02):226. |
| [6] | 胡红旗;陈鸣才;黄玉惠 等.[J].化学通报(印刷版),1997,12:20-26. |
| [7] | 吴金,刘昭铁.超临界二氧化碳中的高分子合成[J].高分子通报,2005(06):70-75. |
| [8] | 徐志康;封麟先 .超临界CO2在高分子合成与制备中的应用[J].高分子通报,1998,1:65-72. |
| [9] | 廖旭深,杨仁党,戚朝荣.超临界二氧化碳中无水相涂料的合成与表征[J].高分子学报,2010(09):1088-1093. |
| [10] | 李宝智.[J].中国粉体技术,2006(02):3-5. |
| [11] | 马进,邓先和,潘朝群.纳米碳酸钙的表面改性研究进展[J].橡胶工业,2006(06):377-381. |
| [12] | Romack T J;Maury E E;Desimone J M .[J].Polymeric Preprints(American Chemical Society Division of Polymer Chemistry),1994,35(02):741-742. |
| [13] | Zhao Qian;Samulski E T .[J].Polymer,2006,47:663-671. |
| [14] | Filardo G;Galia A;Pierro P.[J].cal Fluids,2004(32):255-263. |
| [15] | Park Jin-Yeol;Shim Jae-Jin .[J].Journal of Supercriti Journal of Supercriti cal Fluids,2003,27:297-307. |
| [16] | Colin D;Wood A;Andrew I.[J].Current Opinion in Solid State and Materials Science,2004(08):325-331. |
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