| 化学接枝法制备腻子型吸水膨胀橡胶研究 |
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| 引用本文： | 李宗良,廖双泉,廖建和,林鸿基.化学接枝法制备腻子型吸水膨胀橡胶研究[J].弹性体,2007,17(1):32-35. |
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| 作者姓名： | 李宗良 廖双泉 廖建和 林鸿基 |
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| 作者单位： | 华南热带农业大学,理工学院,海南,儋州,571737 |
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| 基金项目： | 海南省教育厅高校科研项目 |
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| 摘 要： | 吸水膨胀橡胶是一种新型的功能高分子材料,过去多用机械共混的方法制备,但是这种方法存在着反复使用性能差的缺点,针对这个问题,本实验采用过硫酸铵/硫代硫酸钠氧化还原引发体系,有效地使丙烯酸钠单体与天然胶乳接枝共聚,制备出吸水倍率相当高的腻子型吸水膨胀天然橡胶。实验结果表明:反应温度、引发剂用量对吸水倍率和接枝率有明显的影响,单体用量对吸水倍率影响较大;反复吸水能力基本保持不变。
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| 关 键 词： | 胶乳 丙烯酸钠 接枝 吸水膨胀橡胶 |
| 文章编号： | 1005-3174（2007）01-0032-04 |
| 收稿时间： | 2006-09-01 |
| 修稿时间： | 2006年9月1日 |
Study on water swelling rubber made by natural rubber latex grafted with acrylic acid sodium |
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| LI Zong-liang,LIAO Shuang-quan,LIAO Jian-he,LIN Hong-ji.Study on water swelling rubber made by natural rubber latex grafted with acrylic acid sodium[J].China Elastomerics,2007,17(1):32-35. |
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| Authors: | LI Zong-liang LIAO Shuang-quan LIAO Jian-he LIN Hong-ji |
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| Affiliation: | College of Science and Engineering ,South China University of Tropical Agriculture ,Danzhou 571737 ,China |
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| Abstract: | Water swelling rubber is a new functional polymer material;we prepared it often by mechanical blends in the past.But it has a disadvantage that its property of cycle using is not good.So we use natural rubber latex grafted with acrylic acid sodium can make a high water swelling multiplying power rubber by(NH4)2S2O8/Na2S2O3 oxidation-reduction system.The effects of the reaction temperature and the amount of the initiator have an obvious influence on grafting rate.The amounts of acrylic acid sodium have a great affect on the water swelling capacity.The capacity of repeat water adsorption keeps well. |
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| Keywords: | latex acrylic acid sodium graft water swelling rubber |
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