ASTM_D_3189_-_06_2011.pdf

Designation:D318906(Reapproved 2011)Standard Test Methods forRubberEvaluation of Solution BR(Polybutadiene Rubber)1This standard is issued under the fixed designation D3189;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover the standard materials,testformula,mixing procedures,and test methods for evaluation ofbutadiene rubber(BR)made by polymerization in solution.1.2 The values stated in SI units are to be regarded as thestandard.The values in parentheses are for information only.1.3 This standard does not purport to address the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D88 Test Method for Saybolt ViscosityD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD1646 TestMethodsforRubberViscosity,StressRelaxation,andPre-VulcanizationCharacteristics(Mooney Viscometer)D2084 Test Method for Rubber PropertyVulcanizationUsing Oscillating Disk Cure MeterD2161 Practice for Conversion of Kinematic Viscosity toSaybolt Universal Viscosity or to Saybolt Furol ViscosityD2501 Test Method for Calculation of Viscosity-GravityConstant(VGC)of Petroleum OilsD3040 Practice for Preparing Precision Statements for Stan-dards Related to Rubber and Rubber Testing(Withdrawn1987)3D3182 Practice for RubberMaterials,Equipment,and Pro-cedures for Mixing Standard Compounds and PreparingStandard Vulcanized SheetsD3896 Practice for Rubber From Synthetic SourcesSamplingD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustriesD5289 Test Method for Rubber PropertyVulcanizationUsing Rotorless Cure MetersD6204 Test Method for RubberMeasurement of Unvulca-nized Rheological Properties Using Rotorless Shear Rhe-ometersNOTE1The specific dated edition of Practice D3040 that prevails inthese test methods is referenced in the precision section.3.Significance and Use3.1 These test methods are intended mainly for refereepurposes but may be used for quality control of rubberproduction.They may also be used in research and develop-ment work and for comparison of different rubber samples in astandard formula.3.2 These tests may be used to obtain values for customeracceptance of rubber.4.Standard Test Formula4.1 Standard FormulasSee Table 1.5.Sample Preparation5.1 For tests intended for referee purposes obtain andprepare the test samples in accordance with Practice D3896.6.Mixing Procedures6.1 The following four mixing procedures are offered:6.1.1 Test Method AInternal Mixer for Initial and FinalMix,6.1.2 Test Method BInternal Mixer Initial Mix with FinalMill Mix,6.1.3 Test Method CMill Mix,and6.1.4 Test Method DMiniature Internal Mixer Mix.NOTE2The compound may be prepared either on a mill or in aninternal mixer or in a miniature internal mixer although slightly differentresults may be obtained.NOTE3Since the mill handling characteristics of the solution polyb-utadiene rubber are somewhat more difficult than for other polymers;theuse of one of the internal mixer procedures is recommended(Test MethodA,B,or D).The mill procedure(Test Method C)may be used provided1These test methods are under the jurisdiction of ASTM Committee D11 onRubber and are the direct responsibility of Subcommittee D11.23 on SyntheticRubbers.Current edition approved Nov.1,2011.Published January 2012.Originallyapproved in 1973.Last previous edition approved in 2006 as D3189 06.DOI:10.1520/D3189-06R11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 good carbon black dispersion is obtained.6.2 Test Method AInternal Mixer for Initial and FinalMixSee Table 2 and Table 3.6.2.1 For general mixing procedure,refer to PracticeD3182.6.2.1.1 If required,cut samples from the batch to allowtesting of compound viscosity and processability in accordancewith Test Methods D1646 or D6204,and vulcanization char-acteristics in accordance with Test Methods D2084 or D5289.6.2.1.2 If tensile stress strain tests are required,sheet off toa finished thickness of approximately 2.2 mm(0.087 in.)andcondition the compound according to Practice D3182.6.3 Test Method BInternal Mixer for Initial Mix WithFinal Mill Mix:6.3.1 For general mixing procedure refer to Practice D3182