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接触角
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  contact angle
    Wa- ter contact angle of the membranes increased from 92 to 123°,suggesting the hydrophobicity of the membranes was improved significantly.
    改性后的膜疏水性显著提高,水接触角从92°提高到123°。
短句来源
    The hydrophobic surfaces of HDPE films are hence hydrophilically modified with the contact angle decreasing from 104° to 48°.
    由于在聚乙烯薄膜的表面引入了亲水性的聚乙二醇分子链,其表面接触角从改性前的104°降至48°.
短句来源
    As the ratio of sp~3/sp~2 decreases, the quantity of CF_2 and roughness of film surface increases, thus contact angle increases.
    sp3/sp2的比值减小,CF2基团含量增加,薄膜粗糙度增加,接触角增大;
短句来源
    The contact angle is correlated with the deposition condition, which low temperature, low radio frequency power and high flux ratio r(r=CF_4/[CF_4+CH_4]) brings the contact angle to ascend.
    在工艺上,沉积温度和功率的减小,气体流量比r(r=CF4/[CF4+CH4])的增加,都会使水的浸润性变差,接触角增大.
短句来源
    When the heat-treating temperature is 550℃ and the molar ratio of tio2 and sio2 is l:0.2,the contact angle of the film Is Oo,the property of hydrophili,Phtotocatalyst and anti-fog in creased,the average transmittance for visible light was 77%.
    当热处理温度为550℃、TiO2与SiO2配比为1:0.2时,制得的薄膜接触角为0°,薄膜的亲水性、光催化活性、防雾性能增强,所得的可见光平均透过率为77%。
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  water contact angle
    The results show that in the modificated packing the surface coarse degree was increased,some oxygen polar group were demonstrated,the water contact angle was decreased from 88° to 45°, the critical surface tension was raised from 28×10 -3 N/m to 55×10 -3 N/m and gas total transfer unit number was increased about 24 percent on the average.
    结果表明,改性后的填料表面粗糙度增大并引入了含氧极性基团,表面水接触角从88°降低至45°,临界表面张力由28×10-3N/m提高到55×10-3N/m,气相总传质单元数平均增加24%,传质性能大为改善。
短句来源
    The results revealed that the film at a mole percent of x(Y3+/Ti4+)=1.5%had a water contact angle of less than 5°after UV illumination for 30min or sunlight for 1h, showing superhydrophilicity.
    研究结果表明,掺杂Y3+的二氧化钛纳米薄膜,在物质的量分数x(Y3+/Ti4+)=1.5%时,经紫外光照30min或自然光照1h后,与水的接触角小于5°,表现出超亲水性;
短句来源
    3 minutes TUV irradiation of TiO 2 film,800 nm in thickness,reduces the water contact angle to below 2 degree.
    80 0nm的TiO2 薄膜在TUV辐照 3min后其接触角可下降至 2°以下。
短句来源
    UV irradiation may adjust the water contact angle of the Ag/TiO 2 composite film from 120 to 0 degree.
    Ag/TiO2 复合薄膜是一种接触角在较大范围内可变的薄膜材料 ,紫外辐射可使其接触角在 12 0°到 0°间调节。
短句来源
    The experimental results show that a FTE SAMs,with a thickness of 1.2 nm,water contact angle of 110.6° and R_a value of 0.198 nm,can be prepared on magnetic head surface.
    实验结果表明磁头表面可制备膜厚1.2 nm、接触角值110.6°、表面粗糙度0.198 nm的FTE单层自组装膜。
短句来源
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  “接触角”译为未确定词的双语例句
    The polar component of titanium oxide films treated by water/oxygen and acrylic acid/oxygen increased 36.5 and 50.9mJ/m~2 respectively. The hydrophilic property was enhanced signifi- cantly by the water/oxygen and acrylic acid/oxygen plasma treatment,on titanium oxide films.
    经水蒸气/氧气、丙烯酸/等离子体处理的氧化钛薄膜的水接触角分别降低了67.3和58.5°,极性分量分别增加了36.5和50.9mJ/m~2,表现出很好的亲水性。
短句来源
    In addition, the experiments of albumin directly immobilizing on the surface of Ti-O film were also performed.
    另外在Ti-O膜表面直接固定吸附白蛋白与肝素,通过AFM,血小板粘附实验、纤维蛋白吸附实验、接触角测试来分析其表面特征。
短句来源
    The structure morphology, the physical and chemical parameters of themembranes are obtained by FT-IR, DSC, XRD, DMA, PALS, PM, SEM, contactangle, swelling experiment.
    采用红外光谱、微分扫描量热(DSC)、接触角实验、溶胀实验、X射线衍射实验(XRD)、动态机械分析实验(DMA)、正电子湮没实验(PALS)、偏光显微镜(PM)、扫描电子显微镜(SEM)等多种表征手段对膜材料的结构形态和物理化学参数进行了研究。
短句来源
    4. CS/PA-130 CS/PA-170 CS/PA-6 CS/EC membrane material were prepared by means of solution blend L-S phase transit.
    3.通过接触角法,发现CS/PA-130、CS/PA-6的亲水性比CS的亲水性有所降低,共聚尼龙可改善CS的亲水性。
短句来源
    2.These membrane materials of PA-6/CA、 PA-130/CA、 PA-170/EC were prepared by the solution blending and liquid-solid transformation, The compability and thermal stability of blending alloys were studied using solubility parameter, viscometry, FTIR,refractive index and TG.
    通过接触角法、高效液相色谱法研究了这三种合金膜材料和均质膜材料的亲水性和界面分离性能,实验结果表明PA-6/CA、PA-130/CA、PA-170/EC合金膜材料的亲水性得到明显的改善,同时PA-170/EC合金对不离解的极性有机物的分离效果优于PA-170均质膜材料。
短句来源
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  contact angle
With the increase of DHPDMS content, the water contact angle increased while the surface tension decreased.
      
As the DHPDMS content increases above 5%, both the contact angle and the surface tension tend to approach a constant.
      
The contact angle increases with increasing temperature, and it tends to approach a constant when the temperature is higher than 50°C.
      
Surface energy of preservative-treated southern yellow pine (Pinus spp.) by contact angle measurement
      
Based on the contact angle data, the surface energy was obtained from the acid-base approach.
      
更多          
  water contact angle
With the increase of DHPDMS content, the water contact angle increased while the surface tension decreased.
      
The water contact angle data show that grafting of PEG400 onto PE can greatly improve the hydrophilicity of the PE surface.
      
With all water contact angle smaller than 74.3°, the crosslinked films demonstrated good hydrophilic properties.
      
It is shown that the water contact angle on the membrane surface decreases as a result of modification, and the extent of its change depends on the duration and temperature of membrane treatment.
      
The variations of water contact angle against surfactant concentration showed two distinct regions.
      
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The author discusses the relationship between contact angle and surface free energy of solid and analyzes the factors affecting contact angle data. The methods for calculating surface free energy of solids from contact angle data are briefly introduced.

本文分析了接触角与固体表面自由能的关系及影响接触角的因素,并简要介绍了用接触角数据计算固体表面自由能的方法。

Polymethylvinylsiloxane(PDMVS)-Polyethylene(PE)alloy membraneshave been prepared with mixing mechanically or in solution and with crosslinking by γ-rayirradiation.The surface structure has been studied by means of XPS,SEM and contact an-gle measurement.From XPS studies it was shown that there was a surface enrichment ofPDMVS segments in the memhrane surfaces at depth of~5nm with an exception,whichwas supported by contact angle measurement.The results have also shown that even in caseof the enrichment of PE in...

Polymethylvinylsiloxane(PDMVS)-Polyethylene(PE)alloy membraneshave been prepared with mixing mechanically or in solution and with crosslinking by γ-rayirradiation.The surface structure has been studied by means of XPS,SEM and contact an-gle measurement.From XPS studies it was shown that there was a surface enrichment ofPDMVS segments in the memhrane surfaces at depth of~5nm with an exception,whichwas supported by contact angle measurement.The results have also shown that even in caseof the enrichment of PE in the surface at depth of~5nm there was a very thin layer(monolayer)of PDMVS in the outermost of the surface,which determined the contact an-gle and was important for the membrane functions.

用机械共混或溶液共混的方法,制备了γ-射线辐照交联的聚甲基乙烯基硅氧烷(PDMVS)-聚乙烯(PE)合金膜,并用 XPS,SEM 和接触角测量等研究其表面结构。XPS 结果表明,在深度~5nm 的膜表面有 PDMVS 链段的富集(只有一个例外),并得到接触角测量的支持。研究结果也表明,即使在~5nm 范围的表面有 PE 链段的富集,其最外层也存在一层很薄(~单分子层)的PDMVS,这一薄层就决定了接触角,并对膜功能有大的影响。

A surface study has been made on wettability adsorption of albumin and surface structure of medical silicone rubber

研究了离子注入医用高分子材料硅橡胶,聚氨脂表面浸润性和白蛋白吸附性的变化。硅橡胶样品分别在40,60,80,100keV能量下注入N~+和Ar~+、注入剂量为2×10~(12)~2×10~(17)cm~(-2),聚氨脂样品在60~100keV能量下注入Si~+,剂量为2×10~(13)~2×10~(16)cm~(-2)。注入后的样品测量了水接触角和白蛋白吸附量。结果表明:随注入剂量增加硅橡胶表面与水的接触角从86°下降到59°;聚氨脂样品的水接触角从84°下降到69°。用傅立叶变换衰减全反射红外光谱(FT-IR-ATR)研究了注入后表面的键合状态。发现离子束轰击打断了一些表面的化学键,在表面形成了一些自由基。对Si~+注入的聚氨脂样品作了顺磁共振分析,发现表面的自由基随注入剂量增加,强度增加。用扫描电子显微镜观察了注入后的表面形貌。

 
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