| 梳型聚合物超分散剂的合成及其在有机介质中分散CaCO3的研究 |
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| 引用本文： | 景希玮,公维光,冯中军,唐胜程,郑柏存.梳型聚合物超分散剂的合成及其在有机介质中分散CaCO3的研究[J].医学教育探索,2017,43(6):777-783. |
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| 作者姓名： | 景希玮 公维光 冯中军 唐胜程 郑柏存 |
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| 作者单位： | 华东理工大学体育新材料研发中心, 上海 200237,华东理工大学体育新材料研发中心, 上海 200237,上海三瑞高分子材料有限公司, 上海 200232,华东理工大学体育新材料研发中心, 上海 200237,华东理工大学体育新材料研发中心, 上海 200237 |
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| 摘 要： | 设计合成了一种新型梳型聚合物SMA-g-PSHD，用于在有机介质中分散超细碳酸钙。该梳型聚合物分别以羧基为锚固基团，低极性聚酯PSHD为溶剂化链。通过FT-IR、1H-NMR和凝胶渗透色谱（GPC）对梳型聚合物的结构、组成和分子量进行表征，并且系统地研究了SMA-g-PSHD对CaCO3在有机介质中的分散性、悬浮液流变行为和稳定性的影响，结果表明：梳型聚合物明显改善了CaCO3的分散性，使其在有机介质中几乎呈单颗粒分布；悬浮液黏度显著降低，并且呈近牛顿流体特征；SMA-g-PSHD改性后的悬浮液具有极佳的稳定性。
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| 关 键 词： | 梳型聚合物 超分散剂 CaCO3 有机介质 |
| 收稿时间： | 2017/2/24 0:00:00 |
Synthesis of Comb-Like Copolymer Dispersant for Dispersing CaCO3 in Organic Medium |
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| JING Xi-wei,GONG Wei-guang,FENG Zhong-jun,TANG Sheng-cheng and ZHENG Bai-cun.Synthesis of Comb-Like Copolymer Dispersant for Dispersing CaCO3 in Organic Medium[J].Researches in Medical Education,2017,43(6):777-783. |
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| Authors: | JING Xi-wei GONG Wei-guang FENG Zhong-jun TANG Sheng-cheng and ZHENG Bai-cun |
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| Institution: | Research & Development Center for Sports Materials, East China University of Science and Technology, Shanghai 200237, China,Research & Development Center for Sports Materials, East China University of Science and Technology, Shanghai 200237, China,Shanghai Sunrisechem Co. Ltd, Shanghai 200232, China,Research & Development Center for Sports Materials, East China University of Science and Technology, Shanghai 200237, China and Research & Development Center for Sports Materials, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | A novel comb-like poly(styrene-co-maleic anhydride)-graft-poly(stearyl alcohol-co-hexanediol-co-decanedioic acid) (SMA-g-PSHD) was designed and synthesized,which was used as the surface modifier for dispersing CaCO3 in organic medium.The comb-like copolymer was absorbed on the surface of CaCO3 using the anionic polycarboxylate as binding group while dispersed in organic medium using the low polarity PSHD polyester side chains.The structure,composition and molecular weight of SMA-g-PSHD were determined by FT-IR,1H-NMR and GPC,respectively.The dispersion ability of CaCO3 in organic medium,the rheological behavior and stability of CaCO3 suspension using SMA-g-PSHD as the dispersant were investigated systematically.The results showed that the addition of SMA-g-PSHD improved the dispersion ability of CaCO3 in xylene significantly and decreased the apparent viscosity of CaCO3 suspension dramatically who behaved near Newton fluid.In addition,the SMA-g-PSHD modified suspension showed superior stability. |
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| Keywords: | comb-like polymer hyperdispersant CaCO3 organic medium |
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