BS ISO 11443-2014 Plastics Determination of the fluidity of plastics using capillary and slit-die rheometers《塑料 用毛细管和狭缝口模流变仪测定塑料的流动性》.pdf
《BS ISO 11443-2014 Plastics Determination of the fluidity of plastics using capillary and slit-die rheometers《塑料 用毛细管和狭缝口模流变仪测定塑料的流动性》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 11443-2014 Plastics Determination of the fluidity of plastics using capillary and slit-die rheometers《塑料 用毛细管和狭缝口模流变仪测定塑料的流动性》.pdf(46页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS ISO 11443:2014Plastics Determinationof the fluidity of plasticsusing capillary and slit-dierheometersBS ISO 11443:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 11443:2014. Itsupersedes BS ISO 11443:2005 which is withdrawn.The
2、UK participation in its preparation was entrusted to TechnicalCommittee PRI/21, Testing of plastics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are respo
3、nsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 84785 1ICS 83.080.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards
4、Policy and Strategy Committee on 31 March 2014.Amendments issued since publicationDate Text affectedBS ISO 11443:2014 ISO 2014Plastics Determination of the fluidity of plastics using capillary and slit-die rheometersPlastiques Dtermination de la fluidit au moyen de rhomtres quips dune filire capilla
5、ire ou plateINTERNATIONAL STANDARDISO11443Third edition2014-04-01Reference numberISO 11443:2014(E)BS ISO 11443:2014ISO 11443:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or ut
6、ilized 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. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyri
7、ght officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 11443:2014ISO 11443:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions .
8、14 General principles . 45 Apparatus . 45.1 Test device 45.2 Temperature control 95.3 Measurement of temperature and calibration 95.4 Measurement of pressure and calibration . 105.5 Measurement of the volume flow rate of the sample .116 Sampling .117 Procedure117.1 Cleaning the test device 117.2 Sel
9、ection of test temperatures 117.3 Preparation of samples . 127.4 Preheating 137.5 Determination of the maximum permissible test duration 137.6 Determination of test pressure at constant volume flow rate: Method 2 .137.7 Determination of volume flow rate at constant test pressure: Method 1 .137.8 Wai
10、ting periods during measurement. 147.9 Measurement of extrudate swelling 148 Expression of results .158.1 Volume flow rate .158.2 Apparent shear rate .158.3 Apparent shear stress 168.4 True shear stress 178.5 True shear rate . 218.6 Viscosity . 228.7 Determination of extrudate swelling 229 Precision
11、 2310 Test report 2410.1 General 2410.2 Test conditions . 2410.3 Flow characteristics .2510.4 Visual examination .26Annex A (informative) Method of correcting for the influence of H/B on the apparent shear rate .27Annex B (informative) Measurement errors .29Annex C (informative) Uncertainties in the
12、 determination of shear viscosity by capillary extrusion rheometry testing .30Bibliography .36BS ISO 11443:2014ISO 11443:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internati
13、onal 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 liaison with IS
14、O, 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 Directives, Par
15、t 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 that some of the
16、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 patent declarations rec
17、eived (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 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs a
18、dherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 5, Physical-chemical properties.This third edition cancels and replaces the second ed
19、ition (ISO 11443:2005), of which it constitutes a minor revision with the following changes: polybutene-1 (PB-1) with typical temperature range of 150 C to 230 C has been added in Table 3; normative references have been updated.iv ISO 2014 All rights reservedBS ISO 11443:2014INTERNATIONAL STANDARD I
20、SO 11443:2014(E)Plastics Determination of the fluidity of plastics using capillary and slit-die rheometers1 ScopeThis International Standard specifies methods for determining the fluidity of plastics melts subjected to shear stresses at rates and temperatures approximating to those arising in plasti
21、cs processing. Testing plastics melts in accordance with these methods is necessary since the fluidity of plastics melts is generally not dependent solely on temperature, but also on other parameters, in particular shear rate and shear stress.The methods described in this International Standard are
22、useful for determining melt viscosities from 10 Pas to 107Pas, depending on the measurement range of the pressure and/or force transducer and the mechanical and physical characteristics of the rheometer. The shear rates occurring in extrusion rheometers range from 1 s1to 106s1.Elongational effects a
23、t the die entrance cause extrudate swelling at the die exit. Methods for assessing extrudate swelling have also been included.The rheological techniques described are not limited to the characterization of wall-adhering thermoplastics melts only; for example, thermoplastics exhibiting “slip” effects
24、12and thermosetting plastics can be included. However, the methods used for determining the shear rate and shear viscosity are invalid for materials which are not wall-adhering. Nevertheless, this International Standard can be used to characterize the rheological behaviour of such fluids for a given
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