1、Designation: D 6835 08Standard Classification System forThermoplastic Elastomer-Ether-Ester Molding and ExtrusionMaterials (TEEE)1This standard is issued under the fixed designation D 6835; the number immediately following the designation indicates the year oforiginal adoption or, in the case of rev
2、ision, 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 This classification system covers segmented blockcopolyether-ester elastomers suitable for molding
3、and 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 contamin
4、ant, 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
5、applications.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 sel
6、ection 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 inhere
7、nt 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.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 883 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Rela
10、ting toPlasticsD 2240 Test Method for Rubber PropertyDurometerHardnessD 3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Crystallization of Polymers byDifferential Scanning CalorimetryD 3641 Practice for Injection Molding Test Specimens ofThermoplastic Molding and Extrusion
11、 MaterialsD 3892 Practice for Packaging/Packing of PlasticsD 4000 Classification System for Specifying Plastic Mate-rialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ISO Standards:3ISO 178 Plastics-Determination of Flexural PropertiesISO 294-1
12、 Plastics-Injection Moulding of Test Specimensof Thermoplastic Materials-Part 1: General Principles andMoulding of Multipurpose and Bar Test SpecimensISO 527-1 Plastics-Determination of Tensile Properties-Part1: General PrinciplesISO 527-2 Plastics-Determination of Tensile Properties-Part2: Test Con
13、ditions for Moulding and Extrusion PlasticsISO 868 Plastics and Ebonite-Determination of IndentationHardness by Means of a Durometer (Shore Hardness)ISO 1133 Plastics-Determination of the Melt Mass-FlowRate (MFR) and the Melt VolumeFlow Rate (MVR) ofThermoplastics1This classification system is under
14、 the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Nov. 1, 2008. Published November 2008. Originallyapproved in 2002. Last previous edition approved in 2002 as D 6835 - 02.2For referenced ASTM s
15、tandards, 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.,4th Fl
16、oor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ISO 11357-3 AMD 1 Plastics-Differential Scanning Calo-rimetry (DSC)-Part 3: Determination of Temperature andEnthalpy of Melting and Crystalli
17、zationISO 14910-1 Plastics-Thermoplastic Polyester/ester andPolyether/ester Elastomers for Moulding and Extrusion-Part 1: Designation System and Basis for SpecificationsISO 14910-2 Plastics-Thermoplastic Polyester/ester andPolyether/ester Elastomers for Moulding and Extrusion-Part 2: Preparation of
18、Test Specimens and Determinationof Properties3. Terminology3.1 DefinitionsThe terminology used in this classificationsystem is in accordance with Terminologies D 883 and D 1600.4. Classification4.1 Polyether-ester elastomers are classified into groups inaccordance with flexural modulus. These groups
19、 are subdi-vided into classes by viscosity range (flow rate) and are furthersubdivided into grades by tensile properties, as shown in thebasic property table (Table TEEE).NOTE 2An example of this classification system is given as follows:The designation TEEE0311 indicates the following:TEEE = polyet
20、her-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 in Table TEEE4.1.1 To facilitate the incorporation of future or specialmaterials, the other category for group (00), class (0), andgrade (0) is sh
21、own in Table TEEE.4.2 Reinforced, filled, and/or lubricated versions of thepolyether-ester materials that are not in Table TEEE areclassified in accordance with Tables TEEE and A. Table TEEEis used to specify the group of polyester materials and Table Ais used to specify the property requirements af
22、ter 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 materials are identified by a single letter that indicates thereinforcement or filler used and two digits that indicate thenominal quantity in pe
23、rcent by weight. Thus, a letter designa-tion G for glass-reinforced and 33 for % of reinforcement,G 33, specifies a filled material with a nominal glass level of33 %. The reinforcement letter designations and associatedtolerance levels are shown in the following table:Symbol Material ToleranceC carb
24、on and graphite fiber 62%G glass 62%L lubricants (for example, PTFE,graphite, silicone, andmolybdenum disulfide)depends upon material andprocessto be specifiedM mineral 62%R combination of reinforcementsor fillers, or both63%NOTE 3This part of the classification system uses the percent ofreinforceme
25、nts or additives, or both, in the control of the modified basicmaterial. The types and percentages of reinforcements and additives aresometimes shown on the suppliers technical data sheet unless they areproprietary in nature. If necessary, additional callout of these reinforce-ments and additives ca
26、n 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-ester materials shall be shown by a six-character designation. The designation will consist of the letter“A” and the five digits comprising the ce
27、ll 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 properties available in existing materials, usersshall not infer that every possible combination of the propertiesexists or can be obtained.4.2.3 Whe
28、n 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.NOTE 4An example of a reinforced polyether-ester elastomer of thisclassification system is as follows. The designation TEEE0310G-20A45630 would i
29、ndicate the following material requirements from TableA:TEEE0310 = polyether-ester elastomer from Table TEEEG20 = glass reinforced at 20 % nominal (see 4.2.1)A = Table A property requirements4 = flexural modulus of 150 MPa, min5 = flexural modulus of 450 MPa, max6 = tensile strength of 60 MPa, min3
30、= elongation at break of 20 %, min0 = unspecifiedIf no properties are specified, the designation would beTEEE0310G20A00000.TABLE A Detail Requirements Polyether-Ester ElastomersDesignation Order No. Property Cell Limits0 12345 6 7 8 91 Flexural modulus, ISO 178, MPa, minAunspecified 10 25 75 150 250
31、 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, 2m MPa, 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
32、specify value5 To be determined unspecified . . . . . . . . .ATest specimen80 3 10 3 4 mm. Test Speed2 mm/min.BISO 5271-2, Type 1BA specimen. Test Speed50 mm/minD6835082TABLE TEEE Requirements for Polyether-Ester ElastomersGroup Class Grade DescriptionAFlexuralModulusBISO 178MPaFlowRateCISO 1133g/10
33、 minFlowRateConditionC/kgTensileStrengthDISO 527-1,2MPa, minElongationatBreakDISO 527-1, 2,%min01 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
34、 150 2 to 12 . . .3 1 25 to 150 160 #50 2 40B200 6 100160 50 2 50B200 6 100. . 4 20B200 6 100AHardness determined by ISO 868 or Test Method D 2240.B30C above melting temperature as determined by ISO 11357-3 (except the heating rate shall be 10C/min) or Test Method D 3418.D6835084ASTM International t
35、akes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own
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37、essed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at
38、the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D6835085
