ASTM D4634-2011a Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S MA)《苯乙烯-马来酸酐共聚物模制和挤压材料(S MA)规格的标准分类系统及基准.pdf
《ASTM D4634-2011a Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S MA)《苯乙烯-马来酸酐共聚物模制和挤压材料(S MA)规格的标准分类系统及基准.pdf》由会员分享,可在线阅读,更多相关《ASTM D4634-2011a Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S MA)《苯乙烯-马来酸酐共聚物模制和挤压材料(S MA)规格的标准分类系统及基准.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D4634 11aStandard Classification System and Basis for Specification forStyrene-Maleic Anhydride Molding and Extrusion Materials(S/MA)1This standard is issued under the fixed designation D4634; the number immediately following the designation indicates the year oforiginal adoption or, in
2、 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. Scope*1.1 This classification system covers styrene-maleic anhy-dride materials suitable for
3、 molding or extrusion. This classi-fication system does not apply to alloys or blends of styrene-maleic anhydride materials with non-elastomericthermoplastics. Styrene-maleic anhydride materials, beingthermoplastic, are reprocessable and recyclable. This classifi-cation system allows for the use of
4、those materials providedthat all the specific requirements of this classification systemare met.1.2 The properties included in this standard are thoserequired to identify the compositions covered. Other require-ments necessary to identify particular characteristics importantto specialized applicatio
5、ns are to be specified by using thesuffixes as given in Section 5.1.3 This classification system and subsequent line call out(specification) are intended to provide means of calling outproperties of plastic materials used in the fabrication of enditems or parts. It is not intended for the selection
6、of materials.Materials should be selected by those having expertise in theplastics field after careful consideration of the design and theperformance required of the part, the environment to which itwill be exposed, the fabrication process to be employed, costsinvolved, and the inherent properties o
7、f the material other thanthose covered by this classification system.1.4 The values stated in SI units are to be regarded as thestandard.1.5 The following precautionary caveat pertains only to thetest methods portion, Section 11, of this classification system.This standard does not purport to addres
8、s 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 to use.NOTE 1There is no known ISO equivalent to this standard.2. Refe
9、renced Documents2.1 ASTM Standards:2D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD648 Test Method for Deflection Temperature of PlasticsUnder Flexural Load in the
10、Edgewise PositionD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD883 Terminology Relating to PlasticsD1525 Test Method for Vicat Softening Temperature ofPlasticsD1600 Terminology for Abbreviated Terms Relating toPlasticsD3641 Pract
11、ice for Injection Molding Test Specimens ofThermoplastic Molding 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 M
12、ilitary Standard:3MIL-STD-1916 DOD Preferred Methods for Acceptance ofProduct2.3 Underwriters Laboratories Standard:4UL 94 Standard for Tests for Flammability for Parts inDevices and Appliances1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct res
13、ponsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Sept. 1, 2011. Published September 2011. Originallyapproved in 1986. Last previous edition approved in 2011 as D4634 - 11. DOI:10.1520/D4634-11A.2For referenced ASTM standards, visit the ASTM website, www.astm.org,
14、 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 Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, ht
15、tp:/dodssp.daps.dla.mil.4Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., North-brook, IL 60062-2096, http:/.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United
16、States.3. Terminology3.1 The terminology used in this classification system is inaccordance with Terminologies D883 and D1600.4. Classification4.1 Styrene-maleic anhydride materials are classified intogroups according to their use either for injection molding, orfor extrusion. These groups are subdi
17、vided into classes andgrades, as shown in Table S/MA.NOTE 2An example of this classification system is as follows: Thedesignation S/MA 211 would indicate:S/MA = Styrene-maleic anhydride,2 = injection-molding resin (group),1 = general purpose (class),1 = requirements given in Table S/MA (grade).4.1.1
18、 To facilitate the incorporation of future or specialmaterials, the “other/unspecified” category (0) for group, class,and grade is shown in Table S/MA. The basic properties can beobtained from Tables A and B as they apply (see 4.3).TABLE S/MA Requirements for Natural Color OnlyGroup Description Clas
19、s Description Grade DescriptionTensileStrengthA(D638) min,MPaFlexuralModulusB(D790)min,MPaIzodImpactStrengthC(D256)min, J/mVicatSofteningPointD(D1525)min, C1 Crystal 1 general purpose 10 other45.3000.10.120.2 high-heat resistant 1 45 2900 10 1300 other . . . .0 other 0 other . . . .2 Impact-modified
20、,molding1 general purpose 1230 other403330.220021002000.140170200.115115115.2 high-impact 120 other4534.22002200.500300.115120.3 high-heat resistant 1230 other353330.250022002200.12021080.135125125.4 plating 10 other30.2000.150.120.5FR 120 other2822.19001800.13070.115115.0 other 0 other . . . .3 Imp
21、act modified,extrusion1 general purpose 1230 other403530.250023002200.140170200.115115115.2 high-heat resistant 120 other3330.22002200.21080.125125.3FR 12282219001800130701151150 other 0 other . . . .0 Other 0 other 0 other . . . .ATensile strength determined on 3.2-mm thick injection-molded D638, T
22、ype I specimen, tested at 5 mm/min.BFlexural modulus determined on centrally-loaded D638, Type I tensile bar, 2-in. span, tangent, Method 1, 1.3 mm/s.CIzod impact strength determined on 12.5 by 3.2-mm injection molded specimen. The specimen shall be obtained from the central section of a D638, Type
23、I tensile bar.DVicat softening point shall be 1-kg load, Rate B, 12.5 by 3.2-mm injection-molded specimen obtained from the central section of a D638, Type I tensile bar.D4634 11a2TABLE A Detail Requirements for Reinforced S/MA MaterialsDesig-nationGradeProperty Cell Limits0 1234567891 Tensile Stren
24、gthAD638,MPa, minUnspecified 40 50 60 70 80 90 100 120B2 Flexural ModulusCD790,MPa, minUnspecified 3500 4500 5500 6500 7500 8500 10 500 14 000B3 Izod Impact StrengthDD256,J/m, minUnspecified 20 50 100 150 200 250 300 350B4 Heat DeflectionTemperatureED648,C, minUnspecified 90 100 110 120 130 150 170
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