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超强吸水剂

超强吸水剂的相关文献在1994年到2020年内共计141篇,主要集中在化学工业、化学、轻工业、手工业 等领域,其中期刊论文93篇、会议论文2篇、专利文献598376篇;相关期刊74种,包括重庆科技学院学报(自然科学版)、兰州大学学报(自然科学版)、西南林业大学学报等; 相关会议2种,包括2004中国绿色高新精细化工论坛、第六届中国功能材料及其应用学术会议等;超强吸水剂的相关文献由271位作者贡献,包括崔英德、马群、姜发堂等。

超强吸水剂—发文量

期刊论文>

论文:93 占比:0.02%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:598376 占比:99.98%

总计:598471篇

超强吸水剂—发文趋势图

超强吸水剂

-研究学者

  • 崔英德
  • 马群
  • 姜发堂
  • 贾振宇
  • 马俊红
  • 司马义·努尔拉
  • 尹国强
  • 廖列文
  • 施晓旦
  • 李改霞
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 李源纯; 汪宇浩
    • 摘要: 超强吸水剂是一种新型功能高分子材料,具有优异的吸水能力和保水性能,本文介绍了超强吸水剂的吸水机理,影响其吸水性能的因素,以及保水性能的分析。
    • 李春香
    • 摘要: 以丙烯酸和聚乙二醇为原料,在对甲苯磺酸的催化下、氢醌为阻聚剂,利用二元醇与羧酸的酯化反应制得纯度较高的交联剂(聚乙二醇二丙烯酸酯),产率为74.37%。之后利用自由基引发的链式聚合反应制得丙烯酸-聚乙二醇二丙烯酸酯共聚物(即超强吸水剂)。经吸水试验测得所合成超强吸水剂对自来水的吸水倍率为85.19。
    • 周爱军; 张泽; 陈颖; 曾水娟; 胡静璇; 胡建芳
    • 摘要: Super absorbent polymers (SAP) were prepared using Xanthan Gum (XG),acrylamide (AM) and acrylic acid (AA)as raw materials by microwave graft copolymerization,then it was blended with the waterborne polyurethane (WPU) to improve mechanical performance.The effect of dosage of XG,mass ratio of monomer acrylamide and acrylic acid (mAA/mAM) on the water absorbency of SAP was studied.The effect of-NCO/-OH value (R value) and WPU content on the mechanical properties and water absorbency of SAP was explored.The structure of SAP was investigated by fourier transform infrared spectroscopy (FT-IR) and the morphology of SAP was characterized by scanning electron microscopy (SEM).The results reveal that the swelling ratio of SAP comes to the maximum when mass ratio of monomer is 5 ∶ 1,dosage of XG is 3 % of total monomers; the composite films exhibit excellent miscibility with a large number of hydrogen bond generated; the tensile strength of composite films enhances but their elongation reduces when the R value increases,the WPU content decreases; the maximum of tensile strength reaches 9.82 MPa and the maximum of elongation attains 28.2% respectively.The maximum water absorbency can achieve 1 340% in water absorption test.%为得到一种力学性能优良的高吸水树脂,以黄原胶(XG)、丙烯酰胺(AM)与丙烯酸(AA)为原料,采用微波聚合接枝共聚方法,制备超强吸水剂溶液XG(SAP),并将其与水性聚氨酯(WPU)溶液共混改性.研究了黄原胶用量,丙烯酰胺与丙烯酸单体配比对于吸水剂吸水倍率的影响,探讨了异氰酸酯基团与羟基的比值(R值)和水性聚氨酯质量分数对高吸水剂的力学性能以及吸水性能的影响.采用红外光谱仪(FT-IR)对合成的高吸水剂以及改性后的高吸水剂的结构进行了表征,利用扫描电镜(SEM),对改性后的高吸水剂的形貌进行表征.结果表明:当丙烯酸与丙烯酰胺的质量比为5∶1,XG占单体总量的比例为3%时,吸水剂的吸水效果最佳;复合胶膜中生成大量氢键,且两相相容性良好;随着R值的增大,XG复合胶膜的拉伸强度增大,断裂伸长率减小;WPU质量分数减小,XG复合胶膜的拉伸强度增大,断裂伸长率减小;XG复合胶膜的最大断裂伸长率可达28.2%,拉伸强度最大可达到9.82 MPa.吸水测试表明,其最大吸水倍率可达1340%.
    • 谢建军; 曾念; 丁出; 姚庆鑫; 何新建; 吴义强
    • 摘要: A self-made kaolin/sodium lignosulfonate graft acrylic acid/acrylamide super-absorbent composites (KLPAAM) was used to test the absorbencies in different heavy metal ion salt solutions. The equilibrium absorbencies of KLPAAM super-absorbent composite were obviously affected by the concentrations of the heavy metal ion solutions and their pH values. The absorption capacity of the resin decreased rapidly with increasing the concentrations of the heavy metal ion solutions and reached an equilibrium value at 4 mmol/L concentration of the heavy metal ion solution. The equilibrium absorbencies of KLPAAM super-absorbent composite in FeCl3 and AlCl3 solutions were far more than that in CuCl2 and ZnCl2 solutions(the late two were near to zero), and the sequence of the four solutions ranked as follows: CuCl2
    • 郭佳; 刘明华; 林春香
    • 摘要: Ascorbic acid,formic acid,isopropanol,sodium bisulfite were chosen as chain transfer agents in the preparation of copolymer absorbent of starch-acrylic acid-acrylamide.The effect of different chain transfer agents on the water absorbency was studied.The results indicated that the water absorbency of the product could be improved in the presence of the chain transfer agents.The results concluded that under the otherwise identical conditions when the dosages of isopropanol,formic acid,sodium bisulfite and ascorbic acid were 0.0375%、0.045%、0.075% and 0.01%,the water absorption percentage could reach 498.1,347.9,549.0 and 407.7 g/g respectively.Additionally,the water absorption percentage from the compound chain transfer agents prevailed over the single one.The optimal compound chain transfer agent was the mixture of isopropanol and sodium bisulfite.When the mass ratio of isopropanol and sodium bisulfite was 1∶2 and the dosage of the compound chain transfer agent was 0.08%,the water absorption percentage could reach 653.5 g/g.%分别以抗坏血酸、甲酸、亚硫酸氢钠、异丙醇为链转移剂,研究了不同的链转移剂对淀粉―丙烯酸―丙烯酰胺(ST-AA-AM)吸水剂吸水性能的影响。实验结果表明:异丙醇、甲酸、亚硫酸氢钠、抗坏血酸用量分别为单体总质量的0.0375%、0.045%、0.075%、0.01%时,吸水率分别为498.1 g/g、347.9 g/g、549.0 g/g、407.7 g/g。将链转移剂进行复配,亚硫酸氢钠与异丙醇复配的效果最佳,当复合链转移剂用量占单体总质量的0.08%,异丙醇/亚硫酸氢钠(质量比)=1∶2时,吸水剂的吸水率最高,为653.5 g/g。
    • 邓顺民
    • 摘要: 应用保水剂治理边坡水土流失是目前采用的重要手段之一。保水剂又称为高吸水性树脂、超强吸水剂、固体水或高分子吸水剂.是利用强吸水树脂制成的一种具有强力吸水保水能力的高分子聚合物。它能迅速吸收大量水分.并且具有重复吸水的功能.
    • 丁以兵
    • 摘要: 养护的有效性与否,严重影响到高性能混凝土的性能,养护的温度和湿度,是影响其性能的关键因素.文中分析了高性能混凝土的结构特点并阐明了其养护的独特机理,列举了几种传统的养护方法.但由于高性能混凝土的特点,传统措施不适用高性能混凝土.而自养护混凝土在控制各种收缩变形、提高水泥水化、改善微观结构以及增强耐久性能等方面,效果显著,表明自养护技术可以成功地应用于外部养护相对不敏感的高性能混凝土之中.%The efficiency of curing seriously affects the mechanical properties of high-performance concrete, the temperature and humidity of curing are the key factors that effect the performance of concrete. This paper would analysis the construction characteristics of high-performance concrete and clarify its special mechanism of curing, and put forward several kinds of traditional curing method.Because of structural characteristic composition of high performance concrete, the traditional methods of curing may fail in highperformance concrete, and the concrete with self-curing can markedly control the various shrinkage deformation, increase the degree of cement hydration,improve the micro-structure, and significantly enhance durability. The study shows that the self-curing technology can be successfully applied to the high-performance concrete while being relatively insensitive to external curing.
    • 孟娟; 金青; 刘晓伟
    • 摘要: 目的 药用淀粉接枝丙烯酸系超强吸水剂的合成.方法 以药用淀粉为原料,丙烯酸为单体,过硫酸钾和N,N-亚甲基双丙烯酰胺分别为引发剂和交联剂,采用水溶液聚合法制备超强吸水剂.研究了单体与药用淀粉质量比、引发剂质量分数、交联剂质量分数、丙烯酸中和度及反应温度对产品吸水倍率的影响,并对产品进行了表征.结果 与结论 当丙烯酸与药用淀粉质量比为6:1,引发剂质量分数为1.3%,交联剂质量分数为0.5%,丙烯酸中和度为75%,温度为60 °C,反应时间为2.5 h时,所得产品吸去离子水的倍率最高,可达715 g·g-1.
    • 刘珍贤
    • 摘要: 以过硫酸钾为引发剂,N,N’-亚甲基双丙烯酰胺为交联剂,采用水溶液自由基聚合法,合成了魔芋粉-丙烯酸(钠)-丙烯酰胺超强吸水剂。采用均匀试验设计法对该合成工艺进行优化,最佳工艺条件为单体总用量(单体/魔芋粉)8.79g·g-1、引发剂量(引发剂/魔芋粉)4.50%、反应温度66.7°C、交联剂量(交联剂/魔芋粉)1.42%、反应时间2.55h、丙烯酸中和度81.74%、单体比例51.7%。产物吸水率为751.3g·g-1,吸盐水率为128.6g·g-1。
    • 刘珍贤
    • 摘要: 以过硫酸钾为引发剂,N,N′-亚甲基双丙烯酰胺为交联剂,采用水溶液自由基聚合法,合成了魔芋粉-丙烯酸(钠)-丙烯酰胺超强吸水剂。采用均匀试验设计法对该合成工艺进行优化,最佳工艺条件为单体总用量(单体/魔芋粉)8.79 g·g-1、引发剂量(引发剂/魔芋粉)4.50%、反应温度66.7°C、交联剂量(交联剂/魔芋粉)1.42%、反应时间2.55 h、丙烯酸中和度81.74%、单体比例51.7%。产物吸水率为751.3 g·g-1,吸盐水率为128.6 g·g-1。
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