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
专利文献>
论文:598376篇
占比:99.98%
总计:598471篇
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
- 王吉德
- 丁以兵
- 买苏尔
- 刘明华
- 刘爱红
- 刘珍贤
- 吴玉凯
- 崔亦华
- 张焜
- 方岩雄
- 易国斌
- 杨晓丽
- 柳明珠
- 田大听
- 谢建军
- 郭建维
- F·富尔诺
- H-p·克里默
- J·伊斯贝纳
- J·哈伦
- M·瓦尔登
- P·韦勒
- R·泰尼
- 于浩
- 全炳新
- 关荐伊
- 刘秀贤
- 刘静
- 华峰君
- 原金海
- 司马义.努尔拉
- 吐尼莎古丽·阿吾提
- 吕钱江
- 吴树威
- 周君
- 周斌
- 周朝鸿
- 和润喜
- 唐富刚
- 孙亚民
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周爱军;
张泽;
陈颖;
曾水娟;
胡静璇;
胡建芳
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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%.
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谢建军;
曾念;
丁出;
姚庆鑫;
何新建;
吴义强
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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
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郭佳;
刘明华;
林春香
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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。
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丁以兵
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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.
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孟娟;
金青;
刘晓伟
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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.
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马俊红;
吐尼莎古丽·阿吾提;
王吉德;
司马义·努尔拉
- 《2004中国绿色高新精细化工论坛》
| 2004年
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摘要:
本文以丙烯酸烯丙酯作为交联剂、丙烯酸(AA)为单体、过硫酸钾(KPS)为引发剂,采用溶液聚合法合成了一种聚丙烯酸类超强吸水剂.研究了合成条件对吸水性能的影响:当ρ丙烯酸烯丙酯)=0.594g/L,ρ(KPS)=0.178g/L,单体中和度x(丙烯酸钠)=90%,c(丙烯酸钠)=4,17mol/L,聚合温度为60°C时,制得的聚合物每克吸去离子水最高达到1360mL,吸盐水(生理盐水)162mL.所得的聚合物具有良好的吸水可逆性,30min的吸水量可以达到饱和吸水量的90%.制得聚合物的热重分析表明,未吸水的该聚合物在350°C开始分解.聚合物吸水前后XRD测试结果显示:吸水前聚合物结构基本无规整性,吸水后膨胀使主链展开,结构趋于规整。
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谢光勇;
张东方;
李春涯
- 《第六届中国功能材料及其应用学术会议》
| 2007年
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摘要:
以天然糖类化合物果糖为新型交联剂,过二硫酸钾引发丙烯酸水溶液聚合法合成了聚丙烯酸钠超强吸水剂;研究了交联剂及用量、引发剂用量、单体浓度和中和度等对产物吸水性能的影响,筛选到最佳工艺条件;当交联剂用量为单体质量的6%、引发剂用量为单体质量的1%、单体浓度为30%、中和度为80%时所得产物的吸水率可达995ml/g.用红外光谱对产物结构进行了表征,证实果糖起到了较好的交联作用。