| 有机硅-苯丙乳液最低成膜温度的研究 |
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| 引用本文： | 杜奕,袁志,阚成友,刘德山.有机硅-苯丙乳液最低成膜温度的研究[J].涂料工业,2004,34(5):35-37. |
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| 作者姓名： | 杜奕 袁志 阚成友 刘德山 |
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| 作者单位： | 清华大学化工系高分子研究所,北京,100084 |
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| 摘 要： | 采用半连续法制备了稳定的有机硅-苯丙乳液，研究了软硬单体配比和有机硅单体含量对共聚物玻璃化转变温度(Tg)和乳液最低成膜温度(MFT)的影响：并选用3种成膜助剂(TXL、DPD和二乙二醇二乙醚)分别考察了成膜助剂的种类和用量对乳液产品MFT的影响。结果表明，共聚物T和乳液的MFT呈较好的线性关系，该乳液体系MFT/Tg约为0．97；乳液产品的MFT随成膜助剂用量的增加而大幅降低，其中二乙二醇二乙醚的效果最好。
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| 关 键 词： | 有机硅 苯丙乳液 成膜助剂 玻璃化温度 成膜温度 半连续法 乳液共聚 涂料 |
| 文章编号： | 0253-4312(2004)05-0035-03 |
| 修稿时间： | 2004年2月10日 |
Study on the Minimum Film Forming Temperature (MFT) of Silicone-Styrene Acrylic Emulsion |
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| DU Yi,YUAN Zhi,KAN Cheng-you,et al.Study on the Minimum Film Forming Temperature (MFT) of Silicone-Styrene Acrylic Emulsion[J].Paint & Coatings Industry,2004,34(5):35-37. |
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| Authors: | DU Yi YUAN Zhi KAN Cheng-you |
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| Abstract: | A stable silicone-styrene/acrylic emulsion has been developed by use of semi-continuous process. The influence of ratio of hard and soft monomers, amount of silicone monomer on the glass transition temperature ( T g), and MFT is discussed. Three coalescents (TXL, DPD, and diethylene glycol diethyl ether) are used. The influence of varieties and amount of coalescents on the MFT of emulsion is discussed. It has shown that the T g and MFT have a good linear relation; the MFT/ T g is about 0.97. The MFT of emulsion is decreased greatly with increase of amount of coalescents, and diethylene glycol diethylene ether gives the best result. |
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| Keywords: | silicone-styrene/acrylic emulsion coalescent glass transition temperature minimum film forming temperature |
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