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Antibiofilm Mechanism of ZnO-PDMS Superamphiphobic Films Against Shewanella putrefaciens(ZnO-PDMS超双疏薄膜对腐败希瓦氏菌生物被膜的抑制机制) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
To improve the surface anti-adhesion property of food storage and processing materials against Shewanella putrefaciens biofilm of aquatic products, the ZnO-PDMS films were prepared by tape casting method with polydimethylsiloxane (PDMS) as filmogen, ZnO ...
HUANG Haitao(黄海涛)   +7 more
doaj   +1 more source

Study on the modified NaAlCl4/ZSM-5 catalysts —catalytic performance of the disproportionation of chlorotrimethyl and trichloromethyl silanes(NaAlCl4/ ZSM-5分子筛催化剂的改性研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
前期工作表明NaAlCl4/ZSM-5分子筛有较好的催化一甲基硅烷和三甲基硅烷制备二甲基硅烷活性.本文通过浸渍法制备了一系列的用La(NO3)3改性及Sr(NO3)2改性的NaAlCl4/ZSM-5分子筛催化剂.结果表明La(NO3)3的加入对反应活性有一定程度的提高,当加入La(NO3)3的量为5%时,二甲产率最高,为68.24%.当加入Sr(NO3)2的量为3%时的效果最好,二甲含量为77.63%.采用IR表征的结果与实验结果比较吻合.用量子化学计算对所得结果进行了理论解释.
XUWen-yuan(徐文媛)   +6 more
doaj   +1 more source

Effect of coating supports and column temperatures on the resolution of omeprazole by coated cellulose triphenyl-carbamate (TPCC)(涂敷担体和柱温对纤维素三苯基氨基甲酸酯涂敷型固定相拆分奥美拉唑的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2004
分别用氨丙基硅胶和不改性硅胶作涂敷担体,制备了纤维素三苯基氨基甲酸酯(TPCC)涂敷型手性固定相,用乙醇/正己烷作流动相,对奥美拉唑进行了手性拆分,并考察了温度对拆分效果的影响,发现用不改性硅胶作担体,亦可取得较好的拆分效果.容量因子和分离因子随柱温升高而降低.分别用Chiralpak AD柱和自制的TPCC手性柱分析有一定对映体过量值(ee)的奥美拉唑溶液,确定了奥美拉唑两对映体在TPCC涂敷型固定相上的洗脱顺序.
WEIFeng(危凤)   +2 more
doaj   +1 more source

新型有机硅乳液消泡剂的制备

open access: yesGongye shui chuli, 2010
以端烯丙基聚氧烯醚、低含氢硅油为原料,氯铂酸为催化剂进行接枝改性,获得聚醚改性聚硅氧烷;再复配硅膏增效,筛选合适的助乳化剂制备新型高效的有机硅乳液消泡剂,并对其性能进行了对比论证。
胡廷   +5 more
doaj   +2 more sources

纤维状海泡石吸附剂对水中Cu2+的吸附行为研究

open access: yesGongye shui chuli, 2022
为回收利用废水中的Cu2+,通过酸处理和化学改性法制备了新型纤维状海泡石吸附剂。分别考察了酸处理、十六烷基三甲氧基硅烷(HDTMS)改性对天然海泡石(Sep)表面性质的影响,并用制备的海泡石吸附剂(H-T-Sep)对水中的Cu2+进行吸附。对改性吸附剂的理化性质进行表征分析,HDTMS能在保持Sep原始晶体结构的情况下对其进行疏水化改性。静态吸附实验结果表明:H-T-Sep对水中Cu2+的吸附过程符合准二级反应动力学模型及Langmuir吸附方程,表明该吸附过程由多种行为控制。H-T ...
魏珊珊   +4 more
doaj   +2 more sources

Study of separating organic acids with capillary electrophoresis(用毛细管电泳方法分离有机酸的研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2002
利用3-氨丙基三甲氧基硅烷(3-APS)作为偶联剂将2,4-二硝基氯苯键合到电泳毛细管内壁上,形成具有一定疏水性的键合相.考察了改性柱对小分子有机酸的分离情况,在40 mmol/L的KH2PO4(pH=5.5)缓冲溶液中可得最佳分离.结合量子化学计算数据进行保留机理的探索,可以确定存在着不同电性的集团间的相互作用.
SHENXiao-chun(沈晓春)   +4 more
doaj   +1 more source

Mechanoluminescent Mixed‐Anion Borate Sr2B5O9Cl:Eu for Dynamic Anticounterfeiting

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Mechanoluminescence (ML)—the emission of light in response to mechanical stimuli—offers a direct and visually intuitive route for transducing mechanical information into optical signals. Herein, we report a mixed‐anion strategy to prepare mixed‐anion borate Sr2B5O9Cl:Eu phosphors through a facile, low‐temperature, and ambient‐atmosphere solid ...
Yuhong Han   +7 more
wiley   +1 more source

Manipulating Terminal Bonds of Ti3C2Tx MXene for Highly Efficient Microwave Absorption and Photothermal Conversion

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT MXenes have been widely investigated as microwave absorption (MA) materials because of their unique properties. This study introduces a terminal bond manipulation strategy to enhance charge transfer and polarization in Ti3C2Tx, optimizing its MA performance.
Xiang Fang   +8 more
wiley   +1 more source

巯基改性泥炭对水体中Hg2+的吸附解吸研究

open access: yesGongye shui chuli, 2020
以泥炭土为原料,利用3-巯丙基三甲氧基硅烷对其进行改性,研究了不同巯基量改性泥炭土对水中Hg2+的吸附动力学特征及等温吸附解吸过程,并探讨了吸附机理。结果表明:提高泥炭土中的巯基含量,可增大泥炭土对Hg2+的吸附量,且吸附平衡时间明显缩短。巯基改性泥炭土对Hg2+的吸附符合准二级动力学方程和Langmuir吸附等温方程,吸附后的解吸率均较低。其吸附机理主要是通过羟基、羰基等官能团对汞的络合吸附作用。
姚璁   +4 more
doaj   +2 more sources

缓释型憎水防污闪涂料性能研究

open access: yesGaoya dianqi, 2017
文中以侧链带有活性基团的聚硅氧烷(改性聚硅氧烷)为缓释型憎水防污闪涂料的基础聚合物,研究了涂料配方对涂料憎水性及拉伸强度、自洁性的影响。试验结果表明:改性聚硅氧烷与107硅胶用量最佳比例为40:60,此时涂料具有较优异的憎水性能,涂料平均静态接触角及伸长率最大。通过加入多胺基有机硅氧烷和纳米活性金属氧化物来降低涂层表面的电阻和增加涂层表面光滑度,从而提高涂料自洁性能。
刘辉, 沈庆河, 刘怀宇
doaj  

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