1、Designation: D6835 17Standard Classification System forThermoplastic Elastomer-Ether-Ester Molding and ExtrusionMaterials (TEEE)1This standard is issued under the fixed designation D6835; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis
2、ion, 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. Scope*1.1 This classification system covers segmented blockcopolyether-ester elastomers suitable for molding a
3、nd extru-sion.1.2 This classification system allows for the use of seg-mented block copolyether-ester elastomers that are recycledprovided that the requirements as stated in this classificationsystem are met. The proportions of recycled material used, aswell as the nature and amount of any contamina
4、nt, however,cannot be covered practically in this specification.1.3 The properties included in this classification system arethose required to identify the compositions covered. It ispossible that there are other requirements necessary to identifyparticular characteristics important to specialized a
5、pplications.One way of specifying them is by using the suffixes as given inSection 5.1.4 This classification system and subsequent line callout(specification) are intended to provide a means of calling outplastic materials used in the fabrication of end items or parts.It is not intended for the sele
6、ction of materials. Materialselection is best made by those having expertise in the plasticfield after careful consideration of the design and the perfor-mance required of the part, the environment to which it will beexposed, the fabrication process to be employed, the costsinvolved, and the inheren
7、t properties of the material other thanthose covered by this classification system.1.5 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.6 The following precautionary caveat pertains only to thetest methods portion, Section 11,
8、of this classification system.This standard does not purport to address all of 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
9、to use.NOTE 1This standard, ISO 14910-1, and ISO 14910-2 address thesame subject matter, but differ in technical content.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelo
10、pment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1600 Terminology forAbbr
11、eviated Terms Relating to Plas-ticsD2240 Test Method for Rubber PropertyDurometer Hard-nessD3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Crystallization of Polymers byDifferential Scanning CalorimetryD3641 Practice for Injection Molding Test Specimens ofThermoplastic Mo
12、lding and Extrusion MaterialsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ISO Standards:3ISO 178 PlasticsDetermination of Flexural Pro
13、pertiesISO 294-1 PlasticsInjection Moulding of Test Specimensof Thermoplastic Materials-Part 1: General Principles andMoulding of Multipurpose and Bar Test SpecimensISO 527-1 PlasticsDetermination of Tensile Properties-Part 1: General Principles1This classification system is under the jurisdiction o
14、fASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Aug. 1, 2017. Published August 2017. Originallyapproved in 2002. Last previous edition approved in 2014 as D6835 - 08 (2014).DOI: 10.1520/D6835-17.2For referenced
15、 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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.
16、,4th Floor, New York, NY 10036, http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internatio
17、nally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1ISO 527-2 PlasticsDetermination of Tensile Properties
18、-Part 2: Test Conditions for Moulding and ExtrusionPlasticsISO 868 Plastics and EboniteDetermination of IndentationHardness by Means of a Durometer (Shore Hardness)ISO 1133 PlasticsDetermination of the Melt Mass-FlowRate (MFR) and the Melt VolumeFlow Rate (MVR) ofThermoplasticsISO 11357-3 AMD 1 Plas
19、ticsDifferential Scanning Calo-rimetry (DSC)-Part 3: Determination of Temperature andEnthalpy of Melting and CrystallizationISO 14910-1 PlasticsThermoplastic Polyester/ester andPolyether/ester Elastomers for Moulding and Extrusion-Part 1: Designation System and Basis for SpecificationsISO 14910-2 Pl
20、asticsThermoplastic Polyester/ester andPolyether/ester Elastomers for Moulding and Extrusion-Part 2: Preparation of Test Specimens and Determinationof PropertiesISO 20753 PlasticsTest Specimens3. Terminology3.1 DefinitionsThe terminology used in this classificationsystem is in accordance with Termin
21、ologies D883 and D1600.4. Classification4.1 Polyether-ester elastomers are classified into groups inaccordance with flexural modulus. These groups are subdi-vided into classes by viscosity range (flow rate) and are furthersubdivided into grades by tensile properties, as shown in thebasic property ta
22、ble (Table TEEE).NOTE 2AN EXAMPLE OF THIS CLASSIFICATION SYSTEM IS GIVEN AS FOLLOWS:THE DESIGNATION TEEE0311 INDICATES THE FOLLOWING:TEEE = polyether-ester elastomer03 (group) = flexural modulus from 125 to 325 MPa1 (class) = flow rate from 2 to 12 g/10 min1 (grade) = property requirements as given
23、in Table TEEE4.1.1 To facilitate the incorporation of future or specialmaterials, the other category for group (00), class (0), andgrade (0) is shown in Table TEEE.4.2 Reinforced, filled, and/or lubricated versions of thepolyether-ester materials that are not in Table TEEE areclassified in accordanc
24、e with Tables TEEE and A. Table TEEEis used to specify the group of polyester materials and Table Ais used to specify the property requirements after the additionof reinforcements or lubricants at the nominal level indicated(see 4.2.1).4.2.1 Reinforced, filled, and/or lubricated versions of thebasic
25、 materials are identified by a single letter that indicates thereinforcement or filler used and two digits that indicate thenominal quantity in percent by weight. Thus, a letter designa-tion G for glass-reinforced and 33 for % of reinforcement, G33,specifies a filled material with a nominal glass le
26、vel of 33 %.The reinforcement letter designations and associated tolerancelevels are shown in the following table:Symbol Material ToleranceC carbon and graphite fiber 2 %G glass 2 %L lubricants (for example, PTFE,graphite, silicone, andmolybdenum disulfide)depends upon material andprocessto be speci
27、fiedM mineral 2 %R combination of reinforcementsor fillers, or both3 %NOTE 3This part of the classification system uses the percent ofreinforcements or additives, or both, in the control of the modified basicmaterial. The types and percentages of reinforcements and additives aresometimes shown on th
28、e suppliers technical data sheet unless they areproprietary in nature. If necessary, additional callout of these reinforce-ments and additives can be accomplished by the use of the suffix part ofthe system (see Section 5).4.2.2 Specific requirements for reinforced, filled, or lubri-cated polyether-e
29、ster materials shall be shown by a six-character designation. The designation will consist of the letter“A” and the five digits comprising the cell numbers for theproperty requirements in the order as they appear in Table A.4.2.2.1 Although the values listed are necessary to includethe range of prop
30、erties available in existing materials, usersshall not infer that every possible combination of the propertiesexists or can be obtained.4.2.3 When the grade of the basic material is not known oris not important, the use of “0” grade classification will be usedfor reinforced materials in this system.
31、NOTE 4An example of a reinforced polyether-ester elastomer of thisclassification system is as follows. The designation TEEE0310G-20A45630 would indicate the following material requirements from TableA:TEEE0310 = polyether-ester elastomer from Table TEEEG20 = glass reinforced at 20 % nominal (see 4.2
32、.1)A = Table A property requirements4 = flexural modulus of 150 MPa, min5 = flexural modulus of 450 MPa, max6 = tensile strength of 60 MPa, min3 = elongation at break of 20 %, min0 = unspecifiedIf no properties are specified, the designation would beTEEE0310G20A00000.TABLE A Detail Requirements Poly
33、ether-Ester ElastomersDesignation Order No. Property Cell Limits0 12345678 91 Flexural modulus, ISO 178, MPa, minAunspecified 10 25 75 150 250 450 1000 2000 specify value2 Flexural modulus, ISO 178, MPa, maxAunspecified 25 75 150 250 450 1000 2000 4000 specify value3 Tensile strength, ISO 527-1, 2 M
34、Pa,minBunspecified 10 20 30 40 50 60 70 80 specify value4 Elongation at break, ISO 527-1, 2, %,minBunspecified 5 10 20 100 200 300 400 500 specify value5 To be determined unspecified . . . . . . . . .ATest specimen80 10 4 mm. Test Speed2 mm/min.BTensile strength shall be determined using a Type A12
35、test speciemen as described in ISO 20753. Test Speed50 mm/minD6835 172TABLE TEEE Requirements for Polyether-Ester ElastomersGroup Class Grade DescriptionAFlexuralModulusBISO 178MPaFlowRateCISO 1133g/10 minFlowRateConditionC/kgTensileStrengthDISO 527-1, 2MPa, minElongationatBreakDISO 527-1, 2,%min01
36、1 1 Blow Molding 25 to 150 0.5 to 5 230/2.16 20 1500 Other 25 to 150 0.5 to 5 . . .2 1 25 to 150 2 to 12 220/2.16 5 3002 25 to 150 2 to 12 220/2.16 15 3003 25 to 150 2 to 12 190/2.16 15 2500 Other 25 to 150 2 to 12 . . .3 1 25 to 150 160 #50 2 40B200 100160 50 2 50B200 100. . 4 20B200 100AHardness d
37、etermined by ISO 868 or Test Method D2240.B30C above melting temperature as determined by ISO 11357-3 (except the heating rate shall be 10C/min) or Test Method D3418.5. Suffixes5.1 When additional requirements are needed that are notcovered by the basic requirements or cell-table requirements,they s
38、hall be indicated through the use of suffixes.5.2 A list of suffixes can be found in Classification D4000(Table 3) and can be used to indicate additional requirements asappropriate. Additional suffixes will be added to that classifi-cation system as test methods and requirements are developedand req
39、uested.6. General Requirements6.1 Basic requirements from the property or cell tables arealways in effect unless superseded by specific suffixrequirements, which always take precedence.6.2 The plastics composition shall be uniform and shallconform to the requirements specified herein.7. Detail Requi
40、rements7.1 The materials shall conform to the requirements inTables TEEE and A, and suffix requirements as they apply.7.2 For the purpose of determining conformance, all speci-fied limits for a specification (line callout) based on thisclassification system are absolute limits, as defined in Practic
41、eE29.7.3 With the absolute method, an observed value or acalculated value is not rounded off, but is to be compareddirectly to the specified limiting value. Conformance or non-conformance is based on this comparison.8. Sampling8.1 Sampling shall be statistically adequate to satisfy therequirements o
42、f 12.4.8.2 A batch or lot shall be constituted as a unit of manufac-ture as prepared for shipment and can consist of a blend of twoor more “production runs.”9. Specimen Preparation9.1 The test specimens shall be molded in accordance withISO 294 and Practice D3641. Recommended processing con-ditions
43、are shown in Table 1.10. Conditioning10.1 Test specimens shall be conditioned in the standardlaboratory atmosphere in accordance with Procedure A ofPractice D618 before performing the required tests.10.2 Conduct tests in the standard laboratory atmosphere of23C and 50 % relative humidity.11. Test Me
44、thods11.1 Determine the properties enumerated in this classifica-tion system by means of the test methods referenced in Section2.11.1.1 The number of tests shall be consistent with therequirements of Section 8 and 12.4.12. Inspection and Certification12.1 Inspection and certification of the material
45、 suppliedwith reference to a specification based on this classificationsystem shall be for conformance to the requirements specifiedherein.12.2 Lot-acceptance inspection shall be the basis on whichacceptance or rejection of the “lot” is made. The lot-acceptanceinspection shall consist of the tests l
46、isted as they apply:12.2.1 Flow rate.12.2.2 Reinforcement content.12.3 Periodic-check inspection with reference to a specifi-cation based upon this classification system shall consist of thetests specified for all requirements of the material under thespecification. Inspection frequency shall be ade
47、quate to assurethe material is certifiable in accordance with 12.4.12.4 Certification shall be that the material wasmanufactured, sampled, tested and inspected in accordancewith this classification system and that the average values forthe lot meet the requirements of the specification line callout.
48、12.5 Reports of the test results shall be furnished whenrequested. The report shall consist of results of the lot-acceptance inspection for the shipment and results of the mostrecent periodic-check inspection.13. Packaging, Packing, and Marking13.1 The provisions of Practice D3892 apply to packaging
49、,packing, and marking of containers for plastic materials.14. Keywords14.1 classification; classification system; elastomers; linecallout; polyether-ester; recycle; specificationD6835 174SUMMARY OF CHANGESCommittee D20 has identified the location of selected changes to this standard since the last issue (D6835 -08(2014) that may impact the use of this standard. (August 1, 2017)(1) Added ISO 20753 to Referenced Documents.(2) Corrected Tensile strength test method given under Desig-nation
