1、Paints and varnishes WettabilityPart 5: Determination of the polar and dispersive fractions of the surface tension of liquids from contact angles measurements on a solid with only a disperse contribution to its surface energyBS ISO 19403-5:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_A
2、W.indd 1 15/05/2013 15:06 ISO 2017Paints and varnishes Wettability Part 5:Determination of the polar anddispersive fractions of the surfacetension of liquids from contactangles measurements on a solid withonly a disperse contribution to itssurface energyPeintures et vernis Mouillabilit Partie 5: Dte
3、rmination des fractions polaires er disperses de la tensionsuperficielle des liquides partir de langle de contact avec un solidenayant quune contribution de dispersion son nergie de surfaceINTERNATIONALSTANDARDISO19403-5First edition2017-06Reference numberISO 19403-5:2017(E)National forewordThis Bri
4、tish Standard is the UK implementation of ISO 19403-5:2017.The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport
5、to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 87398 0ICS 01.040.87; 87.040Compliance with a British Standard cannot confer immunity from legal obli
6、gations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 19403-5:2017 ISO 2017Paints and varnishes Wettability Part 5: Determination of the po
7、lar and dispersive fractions of the surface tension of liquids from contact angles measurements on a solid with only a disperse contribution to its surface energyPeintures et vernis Mouillabilit Partie 5: Dtermination des fractions polaires er disperses de la tension superficielle des liquides parti
8、r de langle de contact avec un solide nayant quune contribution de dispersion son nergie de surfaceINTERNATIONAL STANDARDISO19403-5First edition2017-06Reference numberISO 19403-5:2017(E)BS ISO 19403-5:2017ISO 19403-5:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Publis
9、hed in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permissio
10、n can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 19403-5:2017ISO 19403-5:2017(E)ii I
11、SO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
12、the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09
13、 47copyrightiso.orgwww.iso.orgISO 19403-5:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Reference solid . 26 Sampling 27 Procedure. 27.1 Test conditions 27.2 Determination of the surface tension of the liquid to be tested . 27.3 Determination of the s
14、urface free energy of the reference solid . 37.4 Determination of the contact angle of the liquid to be tested on the reference solid 38 Evaluation 38.1 General . 38.2 Owens-Wendt-Rabel-Kaelble method (OWRK method) . 38.3 Wu method . 48.4 Calculation of the polar fraction of the surface tension of t
15、he liquid . 49 Precision . 410 Test report . 4Bibliography 6 ISO 2017 All rights reserved iiiContents PageBS ISO 19403-5:2017ISO 19403-5:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of pre
16、paring International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in
17、 liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC
18、 Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility
19、 that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of paten
20、t declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to con
21、formity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subco
22、mmittee SC 9, General test methods for paints and varnishes.A list of all parts in the ISO 19403 series can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO 19403-5:2017ISO 19403-5:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of n
23、ational standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Inter
24、national organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those inte
25、nded for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www
26、 .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the documen
27、t will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the
28、 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared
29、by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.A list of all parts in the ISO 19403 series can be found on the ISO website.iv ISO 2017 All rights reserved INTERNATIONAL STANDARD ISO 19403-5:2017(E)Paints and varnishes Wettabil
30、ity Part 5: Determination of the polar and dispersive fractions of the surface tension of liquids from contact angles measurements on a solid with only a disperse contribution to its surface energy1 ScopeThis document specifies a test method to determine the polar and dispersive fractions of the sur
31、face tension of liquids by optical methods. The method can be applied for the characterization of liquid coating materials.The applicability can be restricted for liquids with non-Newtonian rheology1).This document assumes that the information of surface tension of the liquid to be tested and the su
32、rface free energy of the dispersive reference solids is known.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated referen
33、ces, the latest edition of the referenced document (including any amendments) applies.ISO 1409, Plastics/rubber Polymer dispersions and rubber latices (natural and synthetic) Determination of surface tension by the ring methodISO 4618, Paints and varnishes Terms and definitionsISO 15528, Paints, var
34、nishes and raw materials for paints and varnishes SamplingISO 19403-1, Paints and varnishes Wettability Part 1: Terminology and general principlesISO 19403-2:2017, Paints and varnishes Wettability Part 2: Determination of the surface free energy of solid surfaces by measuring the contact angleISO 19
35、403-3, Paints and varnishes Wettability Part 3: Determination of the surface tension of liquids using the pendant drop methodEN 14370, Surface active agents Determination of surface tension3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4618 and ISO 1
36、9403-1 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp1) This term is defined in DIN 1342-1. ISO 2017
37、All rights reserved 1BS ISO 19403-5:2017ISO 19403-5:2017(E)4 PrincipleStep 1: The surface tension of the liquid to be tested is determined in accordance with ISO 19403-3, EN 14370 or ISO 1409.Step 2: The surface free energy of a reference solid without polar fraction of the surface free energy is de
38、termined in accordance with ISO 19403-2.Step 3: Measurement of the contact angle between the reference solid and the liquid to be tested is carried out in accordance with ISO 19403-2.Step 4: The dispersive fraction of the surface tension of the liquid is calculated in accordance with Owens, Wendt, R
39、abel and Kaelble (OWRK) or in accordance with Wu.Step 5: The polar fraction of the surface tension of the liquid is calculated from the dispersive fraction of the surface tension and the surface tension measured in step 1.5 Reference solidSufficiently, chemically and topologically homogenous dispers
40、ive solid, e.g. made of paraffin or PTFE, shall be used.NOTE For the application of this document, surfaces of solids with a polar fraction of 20 mJ/m2, calculate the dispersive fraction of the surface tension of the liquid, ld, in accordance with Formula (1):ld l2s=+(cos )142(1)where is the mean va
41、lue of the measured contact angles between the tested liquid and the reference solid;lis the surface tension of the tested liquid, measured in accordance with 7.2;sis the surface free energy of the reference solid, measured in accordance with 7.3. ISO 2017 All rights reserved 3BS ISO 19403-5:2017ISO
42、 19403-5:2017(E)8.3 Wu methodFor reference surfaces with a surface free energy 20 mJ/m2, calculate the dispersive fraction of the surface tension of the liquid, ld, in accordance with Formula (2): ld lsdsdl=+(cos )(cos )141(2)where is the mean value of the measured contact angles between the tested
43、liquid and the reference solid;lis the surface tension of the tested liquid, measured in accordance with 7.2;sdis the dispersive fraction of the surface energy of the reference solid.8.4 Calculation of the polar fraction of the surface tension of the liquidCalculate the polar fraction of the surface
44、 tension of the liquid, lp, in accordance with Formula (3):lplld= (3)wherelis the surface tension of the tested liquid, measured in accordance with 7.2;ldis the dispersive fraction of the surface tension of the tested liquid.9 PrecisionAt the time of publication, information on precision is not avai
45、lable.10 Test reportThe test report shall contain at least the following information:a) all details necessary to identify the tested product;b) a reference to this document, i.e. ISO 19403-5;c) the surface tension of the liquid to be tested including all information in accordance with the test repor
46、t of the method used;d) the surface free energy of the reference solid including all information in accordance with the test report of the method used or reference and material and manufacturer, cleaning and preparation method of the reference solid, if applicable;e) for the determination of the pol
47、ar and dispersive fractions of the surface tension of the liquid:1) the information on whether it was measured statically or dynamically,2) the used drop volumes or volume range and dosing speed,4 ISO 2017 All rights reservedBS ISO 19403-5:2017ISO 19403-5:2017(E)8.3 Wu methodFor reference surfaces w
48、ith a surface free energy 20 mJ/m2, calculate the dispersive fraction of the surface tension of the liquid, ld, in accordance with Formula (2): ld lsdsdl=+(cos )(cos )141(2)where is the mean value of the measured contact angles between the tested liquid and the reference solid;lis the surface tensio
49、n of the tested liquid, measured in accordance with 7.2;sdis the dispersive fraction of the surface energy of the reference solid.8.4 Calculation of the polar fraction of the surface tension of the liquidCalculate the polar fraction of the surface tension of the liquid, lp, in accordance with Formula (3):lplld= (3)wherelis the surface tension of the tested liquid, measured in accordance with 7.2;ldis the dispersive fraction of the surf
