发明名称 |
Method of making electret articles based on zeta potential |
摘要 |
<p>A method of making an electret article, from a polymeric article that has a zeta potential of greater than or less than -7.5 millivolts. The article is charged by contacting it with an aqueous liquid that has a pH and conductivity as follows: (i) if the article has a zeta potential of -7.5mV or less, then the contacting liquid has pH greater than 7 and a conductivity of 5 to 9,000 microSiemens per centimeter; and (ii) if the article has a zeta potential of greater than -7.5mV, then the contacting liquid has a pH of 7 or less and a conductivity of 5 to 5,500 microSiemens per centimeter. An electret article made in this manner can provide improved electret performance, particularly in electret filtration articles.</p> |
申请公布号 |
AU2009255525(B2) |
申请公布日期 |
2012.02.16 |
申请号 |
AU20090255525 |
申请日期 |
2009.04.14 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
SHAH, RAHUL B.;SCHULTZ, NATHAN E.;LI, FUMING B.;SEBASTIAN, JOHN M.;KEOUGH, JUSTIN L.;JAPUNTICH, DANIEL A.;JONES, MARVIN E.;CHOU, SHIH-HUNG |
分类号 |
D06M13/335;A62B18/02;B01D39/16 |
主分类号 |
D06M13/335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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