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MicroDrop法用于表征固体材料物理化学性质之接触角值

点击次数:1113  发布时间:2018-11-12

GUTICAILIAODEWULIHUAXUEDEBIAOZHENGTONGCHANGCAIYONGJIECHUJIAOZHIBIAOZHENGFAHEGUTIBIAOMIANZIYOUNENGFALIANGZHONGFANGFAZHIYI。ERCONGJISHULUXIANLAIFENXI,SHISHISHANG,WULUNSHIGUTICAILIAODEJIECHUJIAOZHIBIAOZHENGFAHAISHIBIAOMIANZIYOUNENGBIAOZHENGFA,QIFENXICESHIDEJICHUJUNJIANLIZAIGUTICAILIAOXIANGDUIYUTANZHENYETIDEJIECHUJIAOZHI,YINER,GUTICAILIAODEJIECHUJIAOZHI、GUTICAILIAOJIECHUJIAOZHIDUIYINGDETANZHENYETIBIAOMIANZHANGLIZHIJIQIFENLIANGZHIDEWENDINGXINGZAIGUTICAILIAOBIAOMIANZIYOUNENGFENXIBIAOZHENGFAZHONGSHIWEIGUANJIANDEYINSU。

CHENGRUHENNANZHAODAOGUANGHUADEGUTIBIAOMIANYIYANG,GUTICAILIAODEJIECHUJIAOZHIDEBIAOZHENGSHISHISHANGYUANFEIMUQIANSUOCAIYONGDEFENXIJISHUYIJISHANGYEHUADECELIANGYIQISUOCAIYONGDEJISHUSUONENGGOUDADAOHUOSHIXIANDE。ZHEIZHUYAOSHIYOUYUGUTICAILIAOTEYOUDEJIECHUJIAOZHIHOUXIANXIANGZAOCHENGDE,ERZAOCHENGJIECHUJIAOZHIHOUDEXIANXIANGCHULEJIAOKESHUZHONGSUOZHANSHIDEBIAOMIANCUCAODU、HUAXUEDUOYANGXINGZHIWAI,HAIBAOKUOLEYOUMEIGUOKENUO(JIQIZHANLVETOUZIGONGSISHANGHAISUOLUN)SUOTICHUDEYIGOUXING。SUIRANYOUBUFENGUOWAICHANGSHANGXUANCHENGKEYITONGGUO3DXINGMAOFABIAOZHENGCHUXIANGYINGDECUCAODU,JINERYOUYONGWenzel-CassieJIECHUJIAOXIUZHENGGONGSHI,DEDAOXIANGYINGDEBENZHENGJIECHUJIAOZHI,DANSHI,XIANJIANDESHI,JIECHUJIAOHUOBENZHENGJIECHUJIAODEBIAOZHENGBINGFEIZHIYOUBIAOMIANCUCAODUYIXIANGZHIBIAO。Wenzel-CassieMOXINGDESHIYONGDUWENTIYEMEIYOUDEDAOXIANGYINGDESHIYANSHUJUDEYANZHENG。

Wenzel cassieWenzel cassie

MUQIANZHUANYEKEXUELINGYUYIJISHANGYEHUADEJIECHUJIAOCELIANGYISUOCAIYONGDEJISHUZHONG,JIECHUJIAOCELIANGJISHUTONGCHANGFENWEISANGEJIEDUAN:

1、量角器及数码量角器阶段:众博棋牌20世纪40年代,Zisman教授提出Giniometer概念(量角器)用于分析测试固体材料的接触角值。长期以来,固体材料的接触角值表征一直采用简单的量角器技术。20世纪80年代,随着计算机科学的发展,图像分析技术引入到对弧形角度的分析,因而,接触角测量技术也从为简单的显微镜量角器阶段发展到了数码量角器阶段。本阶段的显著特征为接触角测值通常采用与界面化学无关的简单的几何测量法,如圆拟合法、椭圆拟合法、多项式曲线切线法。其中,测值精度高的方法主要有美国科诺倡导的曲线尺法以及RealDrop(TrueDrop)法。

DANSHI,YISHANGSHUMALIANGJIAOQIJINJINSHIJIYUSUOXINGCHENGDELUNKUOXINGZHUANGDEJIAODUDECELIANG,ERYUJIEMIANHUAXUEFENXIWUGUAN。YINER,CEZHIDEJIEGUOYISHOULUNKUOXINGZHUANGDEYINGXIANG,SHOUZHONGLIYINGXIANG,WUFADEDAOKEXUEERKEKAODEJIEMIANHUAXUEXINGZHISHANGDEGUTICAILIAODEWULIHUAXUEXINGZHIBINGXINGCHENGYOUXIAODEZHIDAOYIYI。

2、基于Young-Laplace方程拟合分析的基础接触角测量阶段:20世纪80年代末,A.W.Neumann教授团队提出了ADSA-P用于分析基于液滴轮廓的界面化学分析测量技术,将界面化学测量技术提升至一个全新的阶段。A.W.Neumann教授团队的ADSA-P技术在界面化学分析测试领域具有里程碑的意义。与此同时留学德国的Song.Bihai以及美国的Hensen教授等也提出了相应的采用Young-Laplace方程拟合技术分析界面化学性质的解决方案。但后者的分析技术是基于Select Plane基础上进行了简单的图像识别化技术,其测值精度取决于所选取的关键面或点位置的标定参数以及图像轮廓精度。这些技术与A.W.Neumann教授团队提出的ADSA-P技术具有显著的区别。ADSA技术的核心理念在于完全不采用Select Plane技术而直接通过两次叠加拟合技术,直接分析得出接触角值和表面张力(或界面张力)值。在界面张力的测试过程中,ADSA-P并不会采用Song和Hensen教授团队的简单的在油相液中悬挂水进行测量,而进行了专门的饱和化处理,进而测值精度在ADSA-P算法中也得到了提升。

MUQIAN,BUFENZHONGGUODESHANGYEHUADEYIQICHANGSHANGYEMANMANYINJINLEYoung-LaplaceFANGCHENGNIHESUANFA,DANSHI,QIHEXINSUANFAYUGUOWAIDEYoung-LaplaceFANGCHENGNIHEJISHUCUNZAIHENDACHAYI。ERGUOWAISHANGYEHUAXUEJIECHUJIAOCELIANGYICHANGSHANGYUGUONEIDEJIECHUJIAOCELIANGYICHANGSHANGDADEQUBIEZHENGZAIYU:GUOCHANDEJIECHUJIAOCELIANGYIZHINENGSHIWEIJIANDANDESHUMALIANGJIAOQI(CEZHIWUZHONGFUXING、JIEGUOWUKEXUEYIJU);ERGUOWAIDEJIECHUJIAOCELIANGYIZESHIZHENZHENGYIYISHANGDEJIEMIANHUAXUEDEJIECHUJIAOCELIANGYI。

接触角测量仪

 

3、3DJIECHUJIAOCELIANGJIMicroDropJISHUJIEDUAN:ZI2015NIANHOU,YIMEIGUOKENUOWEISHOUDEYANFATUANDUIWEIRAOJIECHUJIAOZHIHOUXIANXIANGJIQICHENGYIN,JIANGJIECHUJIAOCELIANGJISHUJINXINGLEQUANMIANSHENGJI。

众博棋牌MEIGUOKENUOTUANDUIFAZHAN,98%YISHANGDEGUTICAILIAOYOUYURUSHANGTIJIDEBIAOMIANCUCAODU、HUAXUEDUOYANGXING、YIGOUXINGDECUNZAI,QIXINGCHENGDESHUIDILUNKUOHUOYEDILUNKUOSHIFEIZHOUDUICHENGDE。JINER,YANFATUANDUIFAXIAN,YIGOUXINGHUIXIANRANDAOZHI3DJIECHUJIAOXIANXIANGDECHANSHENG。YINER,3DJIECHUJIAOCELIANGCAISHIBIAOZHENGGUTICAILIAOBIAOMIANDEWULIHUAXUEXINGZHI--JIECHUJIAOXIANGDUIBIJIAOHAODEFANGFA,ERFEIJIANDANDEJIANG3DXINGMAOFENXIDEDAODEBIAOMIANCUCAODUDAIRUWenzel-CassieGONGSHIJINXINGXIUZHENGZHEIMEJIANDANDECAOZUOSUONENGGOUJIEJUE。

接触角测量

TONGGUO3DJIECHUJIAODECELIANG,CHULETISHENGLESUOCAIYONGDEJIECHUJIAOZHIDESHUJUKEKAOXINGZHIWAI,JINYIBUDIKEYIDEDAOCAILIAODEZHIHOUXIANXIANGSHIFOUCUNZAIYIJICAILIAOBIAOMIANDEQINGJIEDU、HUAXUEDUOYANGXINGDENG。RUGUOSUOCEDEDE3DJIECHUJIAOZHIBIANHUAFANWEIBUCHAOGUO2DU,ZESHUOMINGCAILIAOBENSHENDEQINGJIEDUYIJIHUAXUEDUOYANGXINGJUNBUCUNZAIWENTI,FANZHIZEQINGJIEDUHUOHUAXUEDUOYANGXING、YIGOUXINGCUNZAI。

众博棋牌3DJIECHUJIAOCELIANGDEJISHULUXIANBAOKUO:

(1)YANGPINTAI360DUSHUIPINGXUANZHUAN:BENFANGFADEYOUDIANZAIYUSHENGJIJIWEIFANGBIAN,CHENGBENDI;QUEDIANZAIYURUGUOCUNZAIBIAOMIANXISHUIHUOZHENGFA,ZEQIANHOUJIAODUZHIBUJUYOUTONGBUXING,DANSHIRENGBUYINGXIANGQIJIAODUZHIPIANCHAYONGYUPINGGUQIBIAOMIANJIECHUJIAOZHIHOUXIANXIANGDEYOUXIAOXING。

(2)3DJIECHUJIAOJINGTOU:CAIYONG360DUWEIRAOYEDIDEJINGTOUHUOLENGJINGJIEGOU。BENFANGFAYOUDIANZAIYUSHISHIXINGHETONGBUXINGJIAOHAO;QUEDIANZAIYU:CHENGBENGAO,CAOZUOJIAOWEIFUZA。

(3)TOF 3D XIANGJI:CAIYONGTOFXIANGJICELIANG3DJIECHUJIAOSHIWEIFANGBIANDECELIANGFANGFA,DANBENFANGFADEQUEDIANZAIYU:CHENGBENGAO,CEZHIJINGDUYIBAN。

3DJIECHUJIAOCELIANGDEJISHULUXIANZHONGHAIBAOKUOLEADSA-DSUANFA,ZAI3DJIECHUJIAOJINGTOUZHONG,JIEGOUDINGSHICHENGXIANGTUXIANG,KEYIJINYIBUTISHENG3DJIECHUJIAOCELIANGDEJINGDU。DAN,ADSA-DSUANFASUOYIJUDETIJIJISUANSHOUDINGSHITUXIANGJISUANDEBANJINGYINGXIANGJIAODA,YINER,CEZHIJINGDUTONGCHANGBUGAO。XIANGDUIYUCESHITIAOJIANXIADE3DJIECHUJIAOFENXIJISHUERYAN,ADSA-DDEDINGSHIJISHUZHINENGSHIWEIFUZHUSUOYONG。

MUQIAN,SHANGYEHUADEJIECHUJIAOCELIANGYICHANGSHANGCHULEMEIGUOKENUOZHIWAIJUNMEIYOUTIGONG3DJIECHUJIAOCELIANGJISHU,ZAIJISHUXIJIEDELEJIESHANGJUNCUNZAIHENDAPIANCHA。SHENZHIYOUBUFENCHANGSHANGXUANCHENG3DJIECHUJIAOGENBENSHIBUJIANGKEXUE,SHIMEIYOUYIJUDE。RANHOUTAMENYOUNACHULEDINGSHIFACAISHI3DJIECHUJIAODEJIANGFA。ERZHEIQIANHOUMAODUNDEJIANGFABENSHENJISHIDUI3DJIECHUJIAOLINIANDERENTONG。JIRANDINGSHIFACAISHI3DJIECHUJIAO,NEIME3DJIECHUJIAOSHIKEGUANCUNZAIDE;ZHISHIZAICELIANGFANGFASHANGMIANCUNZAIBUTONGRENTONG。DANSHI,MEIGUOKENUOCONGMEIYOUTICHUDINGSHIWUFAYONGYU3DJIECHUJIAOPINGGU,ZHISHIDUIDINGSHIDUI3DJIECHUJIAOBIAOZHENGSHIFOUYOUXIAOTICHULEBUTONGKANFA,SHISHISHANG,ZHEIXIETIBUTONGYIJIANDEJISHUTUANDUITONGYANGMEIYOUZHONGXINGCHENGBUTONGSHIJIAOTIAOJIANXIA,NAPADINGSHITIAOJIANXIAGEWEIZHIDEJIAODUJINXINGXIANGXIFENXICEZHI。QICEZHIZHISHIJIYUXIAOERCHENGHOUYEDIBANJINGJISUANDEDAODETIJIFENXIDEDAODEYIGEPINGJUNJIECHUJIAOZHIERBINGFEIWEIJIECHUJIAODEFENBUQINGKUANGDEFENXI。

顶视法接触角测量仪

进一步的,美国科诺团队基于长期存在的Wenzel-Cassie模型的无法实证问题进行了全面探讨,提出了MicroDrop法用于评估固体材料的接触角值众博棋牌。为了客观而准确地评估MicroDrop法的有效性,美国科诺团队的测试方案采用了接触角测量中为难测的纤维+树脂的测量方案。

众博棋牌(1)CAIYONGCHUANTONGDEJIECHUJIAOCELIANGFANGFASHI,JIECHUJIAOCEZHISUDUCAIYONG100ZHEN/MIAOSHI,GONGPAIDE2ZHANGTUPIAN,ZAIMANFANGTIAOJIANTIAOJIANXIA,JIECHUJIAOBIANHUATUXIANGRUXIASUOSHI:

纤维接触角

众博棋牌(2)CAIYONGMicropDropFASHI,TONGYANGDE100ZHEN/MIAOTIAOJIANXIA,JIECHUJIAODEBIANHUATUXIANGRUXIASUOSHI:

接触角测量仪MicropDrop法测量接触角值

从如上数据来看,MicroDrop法与传统的接触角测量方法的主要区别在于:

(1)MicroDropFAYOUYUYEDIWEIZHIZAIYANGPINXIAFANG,XIANGDANGYUXINGCHENGXUANDIXINGZHUANG,YINERCISHIZHONGLIDEZUOYONGFANGXIANGWEIYUANLIYANGPIN;ERZAICHUANTONGFANGFATIAOJIANXIA,XINGCHENGDEYEDIWEITINGDI,CISHIZHONGLIXIANGXIA,YEDIHUIBEIJIARUYANGPINZHONG,JIASUDEYEDIDEXIRU。

(2)MicropDropFAYEDIDEBIANHUAXIANSHILEYEDIYOUYUMAOXIXIANXIANGHUOWenzel-CassieMOXINGDECUNZAI,YEDIHUIBEIXIRUDAOYANGPINZHONG。DANZHONGYEDIBINGMEIYOUQUANBUXIRUDAOYANGPINNEI,CISHIDEJIECHUJIAOZHIYONGYUBIAOZHENGGUTICAILIAODEWULIHUAXUEXINGZHIHUOGUYEDEWULIHUAXUEXINGZHISHI,WOMENDEDAODEJIELUNSHI,GAISHUZHIYUXIANWEIDEJIEMIANHUAXUEZHANHEXIAOGUOBINGBUSHILIXIANGDE。ERXIANGDUIERYAN,CHUANTONGFANGFAZEWUFAJICHURUSHANGJIELUN,YINWEISHUZHIZHONGHUIJIYIZAIGUTIBIAOMIANXINGCHENGYOUXIAODEPUZHAN,YANGPINJIANDEQUBIEYOUYUZHONGLIDEZUOYONGERWUFAQUBIEKAILAI。

众博棋牌MicropDropFAYUXUANDIFADEQUBIEZAIYU:XUANDIFATONGGUOSHICESHIYETIBIAOMIANZHANGLIHUOYEYEJIEMIANZHANGLISUOYONG,WUFAYONGYUPINGGUJIECHUJIAOZHI。ERQIE,ZAIMicroDropZHUANGTAISHI,YOUYUZHONGLIZUOYONGDEXIANGFANXING,YUANNIHE、TUOYUANNIHESUANFASHIWUXIAODE,ERMUQIANWEIZHI,MicroDropFASUOCAIYONGDEJIECHUJIAOFENXIFANGFAZHIYOUADSA-RealDrop(TrueDrop)FA。QIZHONGADSA、RealDrop、TrueDrop、MicroDropSHIMEIGUOKENUOZHANLVETOUZIGONGSISHANGHAISUOLUNDEZHUCESHANGBIAOHUOSHENQINGZHUCEZHONGDESHANGBIAO。

众博棋牌JINYIBUDE,WOMENTONGGUODUIYIXILIEBUTONGJIAODUDEYANGPINCAIYONGCHUANTONGJIECHUJIAOCELIANGFANGFAHEMicroDropFAJINXINGLEJIECHUJIAODUIBISHUJUCELIANG,JINYIBUZHENGSHILEWenzel-CassieMOXINGDECUNZAI,YIJIMicroDropFAYONGYUFENXICESHIGUTICAILIAODEJIECHUJIAOZHIDEYOUXIAOXING:

序号传统停滴MicroDrop法接触角差值误差百分比表面自由能差值
接触角表面自由能接触角表面自由能
19.87371.8511.1971.551.31713.34%-0.30
215.08470.5114.2270.77-0.864-5.73%0.26
321.74368.1921.6268.24-0.123-0.57%0.05
429.17264.9728.6565.21-0.522-1.79%0.24
531.43763.8831.5963.810.1530.49%-0.07
640.76459.0632.6263.3-8.144-19.98%4.24
746.06756.1139.7659.6-6.307-13.69%3.49
854.94650.9651.6852.88-3.266-5.94%1.92
992.04228.0479.7235.75-12.322-13.39%7.71
1095.08326.1691.3627.97-3.723-3.92%1.81
1197.27824.894.5626.48-2.718-2.79%1.68
1297.91924.4192.5227.75-5.399-5.51%3.34
13100.47722.8498.7823.88-1.697-1.69%1.04
14107.15218.83103.7620.85-3.392-3.17%2.02
15123.3289.7126.558.23.2222.61%-1.50
16134.0675.31137.374.163.3032.46%-1.15
17150.9061.02156.820.435.9143.92%-0.59
18160.790.21163.870.13.081.92%-0.11
     负误差百分比
平均
-5.97% 
     (排除1和18项数据值) 

 

MicroDrop法

TONGGUORUSHANGSHUJU,WOMENKEYIFENXIDEDAO:

众博棋牌(1)Wenzel-CassieMOXINGSHIZHENSHICUNZAIDE,DANSHI,QIJIAODUFENJIEDIANBINGFEIYI90DUJIECHUJIAOZHIWEIJIE。ZAIFENJIEJIAODUSHANG,0-30DUSHI,Wenzel-CassieMOXINGBINGBUCUNZAI;120DUSHI, Wenzel-CassieMOXINGJINXINGZHUANHUAN。

众博棋牌(2)TONGGUOBIAOMIANZIYOUNENGDEFENXI,WOMENKEYIDEDAO,GUTICAILIAODEBIAOMIANZIYOUNENGZAICAIYONGMicroDropFASHI,CEZHISHUJUGENGWEIKEKAO;

(3)TONGGUOBIAOMIANZIYOUNENGDEFENXI,WOMENKEYIDEDAO,GUTICAILIAODEBIAOMIANZIYOUNENGFENXI,QIJIECHUJIAOZHIDADELINJIEDIANZAIYU120DU,JICHAOGUO120DUDEJIECHUJIAOZHI,QIGENGDUODESHIYOUYUBIAOMIANDENAMIJIEGOUZAOCHENGDE,ERFEISHIGUTICAILIAOBENSHENDEBIAOMIANZIYOUNENGDAOZHIDE。