JIECHUJIAOCELIANGYIYONGYUCESHIGUTICAILIAODEJIECHUJIAOZHISHIYIGEDIANXINGDEYINGYONG。MUQIAN,JUEDADUOSHUDEJIECHUJIAOCELIANGYIJUNSHICAIYONGYUANNIHE、TUOYUANNIHEHUOQIEXIANFA、Young-LaplaceFANGCHENGNIHEFADEYIQI。QIZHONG,YUANNIHE、TUOYUANNIHEYIJIQIEXIANFADEJIECHUJIAOCELIANGYI,YINQICAIYONGDECESHISUANFAWEIJIANDANDEJIAODUCELIANGDELIANGJIAOGONGJU,YINER,TONGCHANGZHEIXIEYIQIZHINENGSHIWEIPUTONGDESHUMALIANGJIAOQI。QIMINGXIANDEQUEXIANZAIYU:
1、ZHEIXIECESHISUANFAWUFAJIANGZHONGLIXISHUJINXINGXIUZHENG,YINER,CEZHIJIEGUOYISHOUZHONGLIYINGXIANGERDAOZHIZHONGFUXINGFEICHANGCHA;
2、SHISHISHANGDEYEDILUNKUODEFEIYUAN(QIUXING)HUOTUOYUAN(TUOQIU)XINGDETEZHENG,JUEDINGLEQICEZHIJIEGUOYINGCAIYONGYUJIEMIANHUAXUEFENXIYUANLIXIANGGUANDESUANFA,YINERLIANGJIAOQIYUANLIDESUOWEIDEJIECHUJIAOCELIANGYIDECEZHIJIEGUODEKEXUEXINGCUNZAIWENTI,CEZHIJUEDUIJINGDUYUCUNZAIWENTI。
3、98%DEYANGPINYINQICAILIAODEBENSHENKEGUANCUNZAIDEHUAXUEDUOYANGXING、BIAOMIANCUCAODUYIJIYIGOUXINGDAOZHI,JIECHUJIAOZHIZAI3DZHUANGTAIXIAWEIFEIZHOUDUICHENGDE。YINER,LIANGJIAOQIFADEYIQISHISHISHANGWUFAYONGYUZHUNQUEDECELIANGZUO、YOUJIAODUZHIBINGJIANGQIYINGYONGYUSHIJIDEYINGYONG。
Young-LaplaceFANGCHENGNIHEFA,JIANGZHONGLIXISHUYIJIBIAOMIANZHANGLI、JIECHUJIAOZHIZONGHECANYUYUNSUAN,YINER,ZHEIGESUANFAZAIJIECHUJIAOCELIANGSHANG:
1、FUHEJIEMIANHUAXUEYUANLI,CEZHIJIEGUODEKEXUEXINGYIJIKEKAOXINGJUNHAO;
2、CEZHIDEZHONGFUXINGHAO,ZIDONGXIUZHENGZHONGLIYINGXIANG,YINERJIECHUJIAOCELIANGSHI,ZAIYIDINGDETIJIFANWEINEI,ZHONGLIYINGXIANGBEIXIUZHENG,JIECHUJIAOZHIDECEZHIJIEGUOZAIYANGPINHAODESHIHOUBAOCHIJIHUBUBIAN。
ZHEIYESHIGUOWAIYIQIYUGUOCHANDEJIECHUJIAOCELIANGYIDEBENZHIQUBIESUOZAI。
但是,正如上所示,98%的样品因其材料的本身客观存在的化学多样性、表面粗糙度以及异构性导致,接触角值在3D状态下为非轴对称的。因而,量角器法的仪器事实上无法用于准确的测量左、右角度值并将其应用于实际的应用。因而,Young-Laplace方程拟合法无法用于绝大多数的接触角值样品的测试条件,换言之,其测值精度事实上是存在问题的。
根据YC/T 424-2011《烟用纸表面润湿性能的测量 接触角法》Determination of surface wettability of paper for cigarette contact angle meter。 接触角测值结果可用于评估卷烟纸的润湿性。其中,按传统的接触角测量测量仪,提供了四种主要的测试方法,包括:椭圆法、切线法、宽高法、圆形拟合法和杨氏方程拟合法(Young-Laplace方程拟合法)。而在具体的测试应用中,由于材料本身的化学多样性、表面粗糙度以及异构性(表面形貌结构)导致的接触角滞后,将影响到测值结果以及评估。因而,如上的所有的方法在具体的应用中存在一定的缺陷。
对于四种不同卷烟纸,我们进行了测量,测量的结果如下所示:
左接触角
右接触角
平均
左接触角
右接触角
平均
左接触角
右接触角
平均
总平均
1#
90.065
88.407
89.236
91.1
88.177
89.636
91.07
88.177
89.592
89.488
2#
52.411
55.712
54.062
52.165
55.452
53.809
51.145
54.145
53.021
53.63067
3#
49.031
50.355
49.493
49.122
50.798
49.96
49.041
49.88
49.46
49.63767
4#
42.03
43.804
42.917
39.764
42.294
41.029
38.892
41.251
40.072
41.33933
并进而,我们对如上接触角测量仪得到的接触角值数据进行整理分析:
总平均
表面自由能
表面自由能差值
接触角值标准差分布平均
1#
89.488
30.06
1.25
2#
53.63067
51.49
21.43
1.60
3#
49.63767
53.81
2.32
0.64
4#
41.33933
58.48
4.67
1.11
从如上数据可以看出:
1、CONGRUSHANGSHUJULAIFENXI,QINSHUIXINGCHENGDUERYAN,QICHENGDUPAIXUWEI1#<2#<3#<4#;
2、QIZHONGZUIWEITESHUDESHI2#HE3#YANGPIN,QIJIECHUJIAOZHICHAZHIWEI4DU,HUANSUANZHIBIAOMIANZIYOUNENGYUEWEI2.32mN/m,BUZUYIYONGZUOPANDUANSHIFOUYOUMINGXIANQUBIEDEBIAOZHUN。TONGCHANGWEI5mN/mDECHAZHIKEYONGZUOPANDUANBUTONGCAILIAODEYIJU。
"3、GENJU3DJIECHUJIAOYUANLI,JIECHUJIAOZHIBIAOZHUNCHAPIANCHAFANWEIWEI±1DUSHI,BIAOMIANZIYOUNENGDEBIANHUAFANWEIWEI2mN/m。KEYIYONGZUOPANDUANYANGPINDEJUNYUNDUHUOBIAOMIANCUCAODUDAOZHIDEZHIHOUJIECHUJIAOMINGXIANYUFOUDEYIJU。
CONGJIECHUJIAOZHIFENBULAIKAN,2#YANGPINDEJIECHUJIAOZHIBIAOZHUNCHAFENBUWEI1.6,YUANCHAO1DUDEYAOQIU。YINER,2#YANGPINDEBIAOMIANQINGJIEDUHUOJUNYUNDUSHIZUICHADE。ER3#YANGPINSHISHISHANGBI4#YANGPINDEBIAOMIANQINGJIEDUHUOJUNYUNDUYAOHAO,JIJIECHUJIAOZHIHOUXIANXIANGGENGWEIBUMINGXIAN。"
4、CONGRUSHANGSHUJULAIKAN,1、2、4HAOYANGPINJUNCUNZAIMINGXIANDEZUO、YOUJIECHUJIAOZHIBIAOZHUNCHAJIAODADEQINGKUANG,YINER,BIAOMIANDEQINGJIEDUCHULIKEYIYOULIYUTISHENGCAILIAODERUNSHIXING,QIEYOUYIDINGDEGAILIANGDEKONGJIAN。ZHEIGEKONGJIANSHIZHIJIECHUJIAOZHIZUO、YOUZHIKEYISHIXIANBIAOZHUNCHAZHIXIAOYU1DUJIECHUJIAOZHI。
ZONGHERUSHANGKEYIKANCHU:
1、TONGCHANGDELIANGJIAOQIFADEJIECHUJIAOCELIANGYIWUFAMANZUSHIJIDEFEICHANGFUZADEYINGYONGXUQIU,RUBIAOMIANQINGJIEDUPINGGU、BIAOMIANJUNYUNDU、BIAOMIANCUCAODUYINGXIANGDEJIECHUJIAOZHIDEPINGGU;
2、Young-LaplaceFANGCHENGNIHEDEFANGFAWUFAYONGYUPINGGUJUEDABUFENYANGPIN。YINER,98%DEYANGPINDEZUO、YOU、QIAN、HOUJIAODUZHITONGCHANGCUNZAIPIANCHA。
3、ASHASUANFA(ADSA-RealDrop)YOUYUQIFEIZHOUDUICHENGXINGYIJIZHONGLIXISHUXIUZHENGGONGNENG,SHIMUQIANWEIZHIPINGGUCAILIAOXINGZHIYIJIRUNSHIXINGXIANGDUIERYANJIAOHAODEFANGFA。ZAIPINGGUYOUXIAOXINGYIJICEZHIJINGDUFANGMIANJUNYOUMINGXIANDEQUBIEYUCHANGGUIDEFANGFA。
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