| 改性M-CMHPC增稠PVA乳液体系的流变特性 |
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| 引用本文： | 王恩浦,刘跃平,黎秉环,朱新荣,许凯,李慧琼.改性M-CMHPC增稠PVA乳液体系的流变特性[J].高分子材料科学与工程,1991(2). |
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| 作者姓名： | 王恩浦 刘跃平 黎秉环 朱新荣 许凯 李慧琼 |
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| 作者单位： | 中国科学院广州化学研究所，中国科学院广州化学研究所，中国科学院广州化学研究所，中国科学院广州化学研究所，中国科学院广州化学研究所，中国科学院广州化学研究所 广州 510650，广州 510650，广州 510650，广州 510650，广州 510650，广州 510650 |
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| 摘 要： | 用旋转粘度计研究了改性羧甲基羟丙基纤维素(M-CMHPC)增稠聚醋酸乙烯(PVA)乳液体系的流变特性。与离子型羧甲基纤维素和非离子型羟乙基纤维素相比较,在实验的增稠剂浓度范围内,改性M-CMHPC增稠PVA乳液体系呈现非牛顿流体Bingham塑性流型,具有较明显的屈服值、塑性粘度和触变性。
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| 关 键 词： | 聚醋酸乙烯乳液 假塑性流型 宾汉塑性流型 屈服值 塑性粘度 融变度 |
RHEOLOGICAL CHARACTERISTIC OF POLYVINYL ACETATE LATEX SYSTEMS THICKENED WITH MODIFIED CARBOXYMETHYL HYDROXYPROPYL CELLULOSE |
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| Wang Enpu,Liu Yueping,Li Binghuan,Zhu Xinrong,Xu Kai and Li Huiqiong.RHEOLOGICAL CHARACTERISTIC OF POLYVINYL ACETATE LATEX SYSTEMS THICKENED WITH MODIFIED CARBOXYMETHYL HYDROXYPROPYL CELLULOSE[J].Polymer Materials Science & Engineering,1991(2). |
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| Authors: | Wang Enpu Liu Yueping Li Binghuan Zhu Xinrong Xu Kai and Li Huiqiong |
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| Abstract: | The rheological characterics of polyvinyl acetate (PVA)latex systems thickened with modified carboxymethyl hydroxypropyl cellulose(M-CMHPC) have been studied with rotational viscometer. The PVA latex systems thickened with M-CMHPC presented Non-Newtonian's pattern of Bingham plastic flow, and had evidently'yield valle, plastic viscosity and thixo-tropic behaviour at 0.2~1.0 wt% of concentration compared with ionic carboxymethyl cellulose (CMC) and non-ionic hydroxyethyl cellulose (HEC) . |
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| Keywords: | PVA latex pseudoplastic flow pattern Bingham plastic pattern yield value plastic viscosity degree of thixotropy |
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