dataphysics接触角测量仪OCA20
dataphysics接触角测量仪OCA20

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Dataphysics

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OCA20

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欧洲

  • 银牌
  • 第21年
  • 一般经销商
  • 营业执照已审核
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核心参数

仪器种类: 视频光学接触角测定仪

仪器类型: 实验室台式

产地类别: 进口

接触角测量范围: 0~180°

接触角测量精度: ±0.1°

固定样品台大小: 100*100mm

图像放大率: 视频速度52幅图像/秒,分辨率768*576像素,可升级至146幅图像/秒

表界面张力测量范围: 0.01 ~ 2000 mN/m

仪器简介:
德国 Dataphysics公司是专门致力于研究、开发、生产胶体与界面科学仪器的国际知名公司。OCA系列视频光学接触角测量仪是dataphysics公司研发生产的专业接触角测定系统,本系列接触角测量仪采用先进的光学视频测量技术和各类专用的分析软件,是高性能高性价比的专业接触角测量仪。OCA20视频光学接触角测量仪是OCA系列视频光学接触角测量仪中的标准型号,是极具竞争力的科研级仪器。

技术参数:
1. 样品规格:220×∞×70mm
2. 样品台规格:100×100mm
3. 接触角测量范围:0~180°;测量精度:±0.1°

4. 表面/界面张力测量范围:1×10-2~2×03mN/m;分辨率±0.01 mN/m
5. 光学系统:自动聚焦(±6mm)6倍变焦透镜(0.7~4.5放大倍率); 软件控制可连续调节光强且无滞后作
用的卤光灯
6. 视频系统:123幅图像/秒的1/2〞CCIR CCD视频系统,视野范围 1.75×1.4~11.7×9mm; 图像分辨率<0.05%;可升级至 219幅图像/秒
可选:高速视频系统UpOCAH (1000幅图像/秒), UpHSC1000 (1600幅图像/秒) 或UpHSC2000 (2200 幅图像/秒)
7. 测量方法:悬滴法;附着滴法;斜板法;座滴法;振荡/弛豫法; Lamella法
8. 测量温度:-60~700℃,分辨率0.1k

主要特点:
X、Y、Z轴可精确定位的样品台
软件控制注射针的选择和定位,水平位移精度0.005mm,垂直位移精度0.01mm
软件控制精密电动注射单元
高分辨率1/2〞CCD视频系统
视频速度52幅图像/秒,分辨率768X576像素,可升级至146幅图像/秒
可选配温度控制单元、斜板、吸盘、纤维样品夹等附件
软件可控制光强连续变化

专用分析软件及性能:
SCA20
接触角测量软件:静态接触角测量、动态接触角测量、滚动角测量、特殊基线接触角测量
SCA21 固体表面自由能计算软件
SCA22 悬滴法表面/界面张力测量软件
SCA23 Lamella法表面张力测量软件&mdash;&mdash;专利软件,独家提供
SCA26 振荡滴界面粘弹测量软件 

软件控制的测量和分析包括:
1. 按照座滴法测量动、静态接触角
2. 计算固体的表面自由能及其组成
3. 按照悬滴法测量液体的表面/界面张力
4. 按照Lamella法测量熔融或高粘度液体的表面张力
5. 按照震荡滴法测量液体的界面粘弹指数及弛豫分析
6. 分析液体表面张力及其组成
7. 记录吸附材料的吸收过程
8. 计算及分析黏附功

应用领域:
* 涂料、金属表面涂层、塑料、造纸
* 高性能合成材料的开发
* 半导体材料、硅晶片、玻璃等表面洁净度的确定
* 化妆品和制药行业,例如乳霜或粉末表面性能的研究
* 纺织材料
* 用表面性物质进行表面处理
* 吸水性物质的吸附行为


 

  • 在室温条件下, 利用KrF 准分子激光辐照技术, 实现了超疏水性聚偏氟乙烯高分子材料的快速制备, 最快制备时间为10 s。实验结果表明, 在改性后的材料表面上, 与水静态接触角由原来的53&#1048578;增加到170&#1048578; 左右。采用原子力显微镜和X 射线光电子能谱等检测手段对辐照后的材料表面进行了微观形貌和化学结构分析, 结果表明激光辐照区域产生了具有极规整三维网络结构的改性层, 并且C - CF2 和C- F 两种化学基团取代了原有的化学结构CH 2 和CF2 成为该改性层的主体。表面的粗糙化与低表面能化学基团的共同作用, 使改性后的聚偏氟乙烯表面有效地产生了较强的超疏水性能。

    石油/化工 2017-11-18

  • 研究了木塑复合材料在氙灯加速老化环境老化后的性能变化。结果表明,材料老化后表面发生褪色现象,弯曲强度和弯曲弹性模量分别损失10%和20%。通过扫描电子显微镜可以看出材料老化后表面出现微孔和细小裂缝,表面细长物质增多。接触角测试则证明了老化50 h后增多的细长物质为木粉,老化75 h和100 h后增多的细长物质为HDPE老化断链后的低分子物。通过X射线光电子能谱对材料表面元素状态及含量的变化分析可知,老化后材料表面发生了氧化。 关键词 木塑复合材料 接触角 X射线光电子能谱分析

    建材/家具 2017-11-18

  • The OCA20 and the software modules SCA2 and 21 offer an easy way to determine the surface energy of polymer surfaces. The polar portions of the surface energy responsible for the adhesion of coatings can be quantitatively collected by means of the contact angle measurement. In this way, wetting and adhesion properties can be predicted. Compared to the use of test inks to estimate the surface free energy, the present method has the advantage of providing a greater accuracy and let to additional information the polar and dispersive contribution of the surface free energy, which governs printability or adhesion. At the same time being independent of the experimenter, thus ruling out subjective influences.

    石油/化工 2017-09-11

  • For performing the contact angle, surface tension and interfacial tension measurements on the contact adhesives, the knowledge of certain liquid parameters against the temperature is required. For the liquids used as polar or disperse reference liquids, these data are available from DataPhysics instruments GmbH, Filderstadt, on request.

    其他 2017-09-08

  • 在室温条件下, 利用KrF 准分子激光辐照技术, 实现了超疏水性聚偏氟乙烯高分子材料的快速制备, 最快制备时间为10 s。实验结果表明, 在改性后的材料表面上, 与水静态接触角由原来的53&#1048578;增加到170&#1048578; 左右。采用原子力显微镜和X 射线光电子能谱等检测手段对辐照后的材料表面进行了微观形貌和化学结构分析, 结果表明激光辐照区域产生了具有极规整三维网络结构的改性层, 并且C - CF2 和C- F 两种化学基团取代了原有的化学结构CH 2 和CF2 成为该改性层的主体。表面的粗糙化与低表面能化学基团的共同作用, 使改性后的聚偏氟乙烯表面有效地产生了较强的超疏水性能。

    石油/化工 2017-11-18

  • The OCA20 and the software modules SCA2 and 21 offer an easy way to determine the surface energy of polymer surfaces. The polar portions of the surface energy responsible for the adhesion of coatings can be quantitatively collected by means of the contact angle measurement. In this way, wetting and adhesion properties can be predicted. Compared to the use of test inks to estimate the surface free energy, the present method has the advantage of providing a greater accuracy and let to additional information the polar and dispersive contribution of the surface free energy, which governs printability or adhesion. At the same time being independent of the experimenter, thus ruling out subjective influences.

    石油/化工 2017-09-11

  • The OCA20 offers an easy way of determining the surface energy of polymer surfaces. For the case of serial examinations on the same, only slightly modified materials as they often occur in industrial production, a method has been developed which further facilitates the determination of the surface energy. Here, the measurement of a contact angle with just one liquid is needed, thus considerably reducing the time needed. The example of PP films, which were submitted to different surface treatments, showed that the new method can predict the surface energy with an accuracy of 2﹪.

    石油/化工 2017-09-08

  • A method has been presented that simply and precisely establishes the surface tension between printing ink and fountain water. With the examples of coloured inks and fountain water, which are currently under further development in industry, it has been shown that an exact assessment of the surface tension limits between printing inks and fountain water is only possible if one establishes the exact surface tension. The over all surface tension alone is not enough to predict the relationship of liquids to each other.

    石油/化工 2017-09-08

  • The new DataPhysics lamella method was introduced, which permits the rapid and easy determination of the surface tension of liquids at temperatures up to 400℃. With the example of a high viscous hotmelt adhesive, an accuracy of the method of 1﹪was achieved.

    其他 2017-09-11

  • For performing the contact angle, surface tension and interfacial tension measurements on the contact adhesives, the knowledge of certain liquid parameters against the temperature is required. For the liquids used as polar or disperse reference liquids, these data are available from DataPhysics instruments GmbH, Filderstadt, on request.

    其他 2017-09-08

  • The new DataPhysics lamella method was introduced, which permits the rapid and easy determination of the surface tension of liquids at temperatures up to 400℃. With the example of a high viscous hotmelt adhesive, an accuracy of the method of 1﹪was achieved.

    其他 2017-09-08

  • 研究了木塑复合材料在氙灯加速老化环境老化后的性能变化。结果表明,材料老化后表面发生褪色现象,弯曲强度和弯曲弹性模量分别损失10%和20%。通过扫描电子显微镜可以看出材料老化后表面出现微孔和细小裂缝,表面细长物质增多。接触角测试则证明了老化50 h后增多的细长物质为木粉,老化75 h和100 h后增多的细长物质为HDPE老化断链后的低分子物。通过X射线光电子能谱对材料表面元素状态及含量的变化分析可知,老化后材料表面发生了氧化。 关键词 木塑复合材料 接触角 X射线光电子能谱分析

    建材/家具 2017-11-18

  • 研究了木塑复合材料在氙灯加速老化环境老化后的性能变化。结果表明,材料老化后表面发生褪色现象,弯曲强度和弯曲弹性模量分别损失10%和20%。通过扫描电子显微镜可以看出材料老化后表面出现微孔和细小裂缝,表面细长物质增多。接触角测试则证明了老化50 h后增多的细长物质为木粉,老化75 h和100 h后增多的细长物质为HDPE老化断链后的低分子物。通过X射线光电子能谱对材料表面元素状态及含量的变化分析可知,老化后材料表面发生了氧化。 关键词 木塑复合材料 老化性能 

    建材/家具 2017-11-18

  • A method has been presented that simply and precisely establishes the surface tension between printing ink and fountain water. With the examples of coloured inks and fountain water, which are currently under further development in industry, it has been shown that an exact assessment of the surface tension limits between printing inks and fountain water is only possible if one establishes the exact surface tension. The over all surface tension alone is not enough to predict the relationship of liquids to each other.

    环保 2017-09-11

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