| 低固含量聚醋酸乙烯乳液黏度影响因素研究 |
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| 引用本文： | 毛国琪,顾继友,刘海英,张俊.低固含量聚醋酸乙烯乳液黏度影响因素研究[J].中国胶粘剂,2009,18(9). |
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| 作者姓名： | 毛国琪 顾继友 刘海英 张俊 |
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| 作者单位： | 东北林业大学材料科学与工程学院,黑龙江,哈尔滨,150040 |
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| 摘 要： | 采用半连续种子乳液聚合法制备了固含量为20%的聚醋酸乙烯(PVAC)乳液,探讨了保护胶体聚乙烯醇(PVA)用量、共聚单体、加料方式及轻质碳酸钙(CaCO_3)用量对该乳液黏度的影响。结果表明:随着PVA用量的增加,乳液黏度提高;共聚单体的种类对乳液黏度有一定的影响;乳液黏度随种子单体用量的增加而降低;加入轻质CaCO_3后,乳液的黏度增加数倍。合成乳液的固含量为18.04%,黏度为5 570 mPa·s。
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| 关 键 词： | 聚醋酸乙烯 乳液 胶粘剂 黏度 固含量 |
Study on viscosity influence factors for PVAc emulsion with lower solid content |
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| MAO Guo-qi,GU Ji-you,LIU Hai-ying,ZHA NG Jun.Study on viscosity influence factors for PVAc emulsion with lower solid content[J].China Adhesives,2009,18(9). |
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| Authors: | MAO Guo-qi GU Ji-you LIU Hai-ying ZHA NG Jun |
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| Affiliation: | MAO Guo-qi,GU Ji-you,LIU Hai-ying,ZHANG Jun (College of Material Science and Engineering,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | A polyvinyl acetate(PVAc) emulsion with 20%solid content was synthesized by semi-continuous seeded emulsion polymerization.The influences of PVA(polyvinyl alcohol) contents,monomers of copolymer, charging wise and light CaCO_3 contents were discussed on emulsion viscosity.The results showed that the emulsion viscosity was enhanced with increase of PVA contents.The monomer types of copolymer had certain influence on emulsion viscosity.The emulsion viscosity was reduced with increase of seeded monomer content... |
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| Keywords: | PV Ac emulsion adhesive viscosity solid content |
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