欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM D6338-2003 Standard Classification System for Highly Crosslinked Thermoplastic Vulcanizate (HCTPVs)《高交联热塑性硫化产品(HCTPVs)的标准分类系统》.pdf

    • 资源ID:522214       资源大小:46.22KB        全文页数:6页
    • 资源格式: PDF        下载积分:5000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要5000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ASTM D6338-2003 Standard Classification System for Highly Crosslinked Thermoplastic Vulcanizate (HCTPVs)《高交联热塑性硫化产品(HCTPVs)的标准分类系统》.pdf

    1、Designation: D 6338 03Standard Classification System forHighly Crosslinked Thermoplastic Vulcanizates (HCTPVs)1This standard is issued under the fixed designation D 6338; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of

    2、last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis classification system is intended as a means for the callout of materials for the fabrication ofparts or end-use

    3、 items. It is not intended for material selection, which should be performed by thosewith special expertise in the materials field. Material selection should be made after carefulconsideration of: part performance and design; the environment in which the part must function; thematerial properties co

    4、vered and not covered by this classification system; the desired service lifetimeof the part; the fabrication process for the part; and material and fabrication costs.1. Scope1.1 This classification system covers highly crosslinkedthermoplastic vulcanizates (HCTPVs) for extrusion, moldingand other f

    5、abrication methods. HCTPVs are thermoplasticelastomers (TPEs) consisting of two or more polymer systemsat least one of which is rubbery and highly (95 %) crosslinkedand at least one of which is thermoplastic, with each systemhaving its own phase. The thermoplastic phase will tend to becontinuous and

    6、 the rubbery phase discontinuous. The highlevel of crosslinking and ultrafine particle size (ca 1 mdiameter) of the rubbery phase give rise to properties moreclosely approaching those of conventional thermoset rubber,when compared to the same thermoplastic/rubbery polymercomposition with a lower lev

    7、el (#95 %) of crosslinking. TheHCTPV polymer compositions may contain fillers, reinforcingagents, plasticizers, resins, antidegradants, colorants and otherbeneficial constituents. Recycled HCTPVs are not covered inthis classification system.1.2 Included in this classification system are the properti

    8、esnecessary to identify the respective compositions. For special-ized applications, other requirements may be needed to identifyspecific characteristics.1.3 As given in IEEE/ASTM SI-10, values in SI units are tobe regarded as standard.NOTE 1There is no equivalent ISO standard.1.4 The following safet

    9、y hazards caveat pertains only to thetest methods portion, Section 12, of this classification system.This standard does not purport to address all of the safetyproblems, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth pr

    10、actices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:D 395 Test Methods for Rubber PropertyCompressionSet2D 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTension2D 471 Test Method for Rubber PropertyEffect of Li

    11、q-uids2D 573 Test Method for RubberDeterioration in an AirOven2D 618 Practice for Conditioning Plastics for Testing3D 638 Test Method for Tensile Properties of Plastics3D 883 Terminology Relating to Plastics3D 1434 Test Method for Determining Gas PermeabilityCharacteristics of Plastics and Sheeting4

    12、D 1566 Terminology Relating to Rubber2D 2240 Test Method for Rubber PropertyDurometerHardness2D 3182 Practice for RubberMaterials, Equipment, andProcedures for Mixing Standard Compounds and Prepar-ing Standard Vulcanized Sheets2D 3892 Practice for Packaging/Packing of Plastics5D 4000 Classification

    13、System for Specifying Plastics Mate-rials5D 4019 Standard Test Method for Moisture in Plastics byCoulometric Regeneration of Phosphorous Pentoxide61This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMa

    14、terials.Current edition approved August 10, 2003. Published October 2003. Originallyapproved in 1998. Last previous edition approved in 1998 as D 6338 - 98.2Annual Book of ASTM Standards, Vol 09.01.3Annual Book of ASTM Standards, Vol 08.01.4Annual Book of ASTM Standards, Vol 15.09.5Annual Book of AS

    15、TM Standards, Vol 08.02.6Discontinued; see 2001 Annual Book of ASTM Standards, Vol 08.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specificati

    16、ons7IEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System83. Terminology3.1 DefinitionsExcept for the terms defined below, tech-nical terms pertaining to materials covered by this classifica-tion system are given in Terminologies D 883 and D 1566.3.2 Def

    17、initions of Terms Specific to This Standard:3.2.1 dynamic vulcanization, nthe process of intimatemelt mixing a thermoplastic polymer with a suitably reactiverubbery polymer to generate a thermoplastic elastomer with achemically crosslinked rubbery phase, resulting in propertiescloser to those of a t

    18、hermoset rubber when compared to thesame uncrosslinked composition.3.2.2 thermoplastic elastomer (TPE), na diverse family ofrubberlike materials that, unlike conventional vulcanized rub-bers, can be reprocessed and recycled like thermoplasticmaterials.3.2.3 thermoplastic vulcanizate (TPV), na thermo

    19、plasticelastomer with a chemically crosslinked rubbery phase, pro-duced by the dynamic vulcanization.4. Classification4.1 Highly crosslinked thermoplastic vulcanizates are clas-sified into groups according to the rubbery polymer(s) present.These groups are subclassified into classes and grades assho

    20、wn in Table HCTPV.4.1.1 To illustrate this classification system: the designationHCTPV 0121 would indicate HCTPV = highly crosslinkedthermoplastic vulcanizate, 01 (group) = EPDM rubber 95 %crosslinked, 2 (class) = medium hardness, and 1 (grade)meeting the requirements in Table HCTPV.4.1.2 To enable

    21、the incorporation of special or futurematerials, the “Other” category (0) for group, class and gradeis given in Table HCTPV. Basic properties can be obtainedfrom Table A.4.2 There is no distinction between reinforced and unrein-forced highly crosslinked thermoplastic vulcanizates.4.3 A six-character

    22、 designation shall show the specificrequirements for the HCTPVs. This designation shall consist ofthe letter A and five digits comprising the property require-ments in the order they appear in Table A.4.3.1 The following is an example of this classificationsystem: Designation HCTPV 0110 A45643 indic

    23、ates the fol-lowing, with the Table A requirements:where:HCTPV 0110 = fully crosslinked thermoplastic vulcani-zate, based on EPDM rubber 95 %crosslinked, low hardness from TableHCTPV,A = Table A property requirements,4=656 5 Shore A hardness, Test MethodD 2240, 5 s delay,5 = 14 MPa, tensile strength

    24、, min, Test MethodD 412 at 23C,6 = 6.0 MPa, tensile strength, min, TestMethod D 412 at 100C,4 = 80 %, weight change, max, Test MethodD 471, IRM 903 oil, 24 h/121C, and3 = 30 %, compression set, max, Test MethodD 395, Procedure B, 22 h/100C.The designation HCTPV 0100 would indicate no propertiesbeing

    25、 specified.4.3.2 Although the values listed are necessary to include therange of properties available in existing materials, users shouldnot infer that every possible combination of the propertiesexists or can be obtained.5. Suffixes5.1 Necessary requirements for superseding or supplement-ing the pr

    26、operty-table or cell-table requirements shall bespecified with suffixes. The first suffix letter indicates thespecial requirements needed; the second letter indicates the testmethod or conditions, or both, with a there-digit numberindicating the specific requirements. Permissible suffixes arelisted

    27、in Table 3 of Classification D 4000.5.1.1 Additional suffixes will be added to this specificationas test requirements and methods are developed or requested,or both.6. Basic Requirements6.1 Basic requirements from property or cell tables arealways in effect, unless superseded by specific suffix requ

    28、ire-ments, which always take precedence.7. General Requirements7.1 Material composition shall be uniform and shall con-form to the requirements of this specification. The productform and color of the HCTPVs shall be mutually agreed to bythe parties involved.8. Detail Requirements8.1 Test specimens a

    29、nd their preparation shall conform toTable HCTPV and Table A, and applicable suffix requirements.8.2 For purposes of determining conformance, all specifiedlimits for a specification (line call out) based on this classifi-cation system are absolute limits, as defined in Practice E 29.8.2.1 With the a

    30、bsolute method, an observed value or acalculated value is not rounded, but is to be compared directlywith the limiting value. Conformance or nonconformance isbased on this comparison.9. Sampling9.1 Sampling shall be statistically adequate to satisfy therequirements of Section 13. A unit of manufactu

    31、re for shipmentshall be a production lot of HCTPV or a uniformly mixed blendof two or more such production lots.7Annual Book of ASTM Standards, Vol 14.02.8Available from ASTM International HeadquartersD633803210. Specimen Preparation10.1 Test specimens shall be prepared by a rigorouslyspecified inje

    32、ction molding process, unless specifically men-tioned to the contrary. This process should be as specified inPractice D 3182, or as specified by the HCTPV supplier. Dueregard should be given to the anisotropic nature of HCTPVmolded parts.11. Conditioning11.1 Prior to testing, test specimens shall be

    33、 conditioned inthe standard laboratory atmosphere in accordance with Proce-dure A of Practice D 618.11.2 Tests shall be carried out at 23 6 2C and 50 6 5percent relative humidity, in accordance with Practice D 618.12. Test Methods12.1 Properties covered by this classification shall be mea-sured by t

    34、he following Test Methods, as applicable: D 395;D 412; D 471; D 573; D 638; D 1434; D 2240; D 4019.12.1.1 The number of tests shall be consistent with therequirements of Section 9 and 13.2.13. Inspection and Certification13.1 Inspection and certification of the material suppliedwith reference to a s

    35、pecification based on this classificationsystem shall be for conformance to the requirements specifiedherein.13.2 Lot-acceptance inspection shall be the basis on whichacceptance or rejection of the lot is made. The lot-acceptanceinspection shall consist of the tests listed as they apply:hardness; we

    36、ight change in IRM 903 oil; moisture content; airpermeability.13.3 Periodic-check inspection shall consist of the testsspecified for all requirements of the material under thisclassification system. Inspection frequency shall be adequate toensure the material is certifiable in accordance with 13.4.1

    37、3.4 Certification shall be that the material was manufac-tured by a process in statistical control, sampled, tested, andinspected in accordance with this classification system, andthat the average values for the lot meet the requirements of thespecification (line callout).13.5 A report of the test r

    38、esults shall be furnished whenrequested. The report shall consist of the results of thelot-acceptance inspection for the shipment and the results ofthe most recent periodic-check inspection.14. Packaging and Marking14.1 Practice D 3892 shall apply to packing; packaging andmarkings.15. Keywords15.1 d

    39、ynamic vulcanization; highly crosslinked thermoplas-tic vulcanizate; line callout; thermoplastic elastomer; thermo-plastic vulcanizateD6338033TABLEHCTPVRequirementDetailsforHighlyCrosslinkedThermoplasticVulcanizatesGroupDescriptionClassDescriptionGradeDescriptionHardness,TestMethodD2240,A/DDurometer

    40、,Typical,5sdelayTensileStrength,23C,TestMethodD412,MPa,minUltimateElonga-tion,23C,TestMethodD412,%minVolumeChange,TestMethodD471,IRM903oil,70h/125C,%maxCompres-sionSet,TestMethodD395,MethodB,25%de-flection,22h/70C,%maxAirAging,TestMethodD573,168h/150C,Ulti-mateElon-gation,%change,maxMoisture,TestMet

    41、hodD4019,%maxAirPermeabil- ity,TestMethod D1434,MethodV,2.1kg/cm30psi,23C,44to59%RH,cm2,mm/m2day,atm,max01EPDMRubber,95%Crosslinked1LowHardness155A3.62801203030.081000264A5.734011035300.081000373A7.03809040400.0810000Other2MediumHardness180A9.04408545400.081000287A14.04808055400.0810000Other3HighHar

    42、dness140D17.05007065500.081000250D20.0A5006075500.0810000Other4UltralowHardness135A1.420016035400.081000245A2.120015035400.0810000Other0Other0Other02NitrileRubber,95%Crosslinked1LowHardness170A4.0175253050B0.1515000Other2MediumHardness180A7.0200204550B0.151500287A11.0300155550B0.1515000Other3HighHar

    43、dness145D13.0350A156550B0.1515000Other0Other0OtherATestMethodD638used.BTemperatureof125Cused.D6338034TABLEHCTPVRequirementDetailsforHighlyCrosslinkedThermoplasticVulcanizates(continued)GroupDescriptionClassDescriptionGradeDescriptionHardness,TestMethodD2240,A/DDurometer,Typical,5sdelayTensileStrengt

    44、h,23C,TestMethodD412,MPa,minUltimateElonga-tion,23C,TestMethodD412,%minVolumeChange,TestMethodD471,IRM903oil,70h/125C,%maxCompres-sionSet,TestMethodD395,MethodB,25%de-flection,22h/70C,%maxAirAging,TestMethodD573,168h/150C,Ulti-mateElon-gation,%change,maxMoisture,TestMethodD4019,%maxAirPermeabil- ity

    45、,TestMethod D1434,MethodV,2.1kg/cm30psi,23C,44to59%RH,cm2,mm/m2day,atm,max03EPDMRubber,95%Crosslinked,Non-hygroscopic1LowHardness155A4.030016040400.021000265A6.040016040400.0210000Other2MediumHardness175A8.040014045400.021000280A9.05009050400.021000390A13.06006060400.0210000Other3UltralowHardness135

    46、A2.530017025400.021000245A3.535017030400.0210000Other0Other0Other04Butyl/halobutylRub-ber,95%Crosslinked1LowHardness165A5.030013040400.08500Other2MediumHardness175A6.040011555400.0855285A10.04009075400.08600Other3HighHardness145D13.04006580400.08700Other0Other0Other00Other0Other0OtherD6338035TABLE A

    47、 Detail Requirements for Highly Crosslinked Thermoplastic VulcanizatesDesignation Or-der NumberProperty 0 1 2 3 4 5 6 7 8 91 Hardness, Test MethodD 2240, Shore A/D, 65unspecified 35A 45A 55A 65A 75A 85A 40D 50D specify value2 Tensile strength, TextMethod D 412,A23C,MPa, minunspecified 2 4 7 10 14 18

    48、 24 30 specify value3 Tensile strength, TestMethod D 412,A100C,MPa, minunspecified 0.5 1.0 2.0 3.0 4.0 6.0 8.0 10.0 specify value4 Weight change, TestMethod D 471, IRM 903oil, 24h/121C, % maxunspecified 180 140 100 80 60 40 20 10 specify value5 Compression set, TestMethod D 395, Method B,25 % defl.,

    49、 22 h/100C,compression molded typeA specimens, % maxunspecified 20 25 30 35 40 50 65 80 specify valueAUse Test Method D 638 for 50D hardness.ASTM International takes 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 responsibility.This standard is subject to revision at any time by the responsible technical


    注意事项

    本文(ASTM D6338-2003 Standard Classification System for Highly Crosslinked Thermoplastic Vulcanizate (HCTPVs)《高交联热塑性硫化产品(HCTPVs)的标准分类系统》.pdf)为本站会员(feelhesitate105)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开