1、Designation: D 3935 09Standard Specification forPolycarbonate (PC) Unfilled and Reinforced Material1This standard is issued under the fixed designation D 3935; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. 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 specification covers unfilled and reinforced poly-carbonate and polycarbonate copolymer materials suitable forinjection mol
3、ding, blow molding, and extrusion. Some of thesecompositions may also find use for compression molding orapplication from solution.1.2 The properties in this specification are those required foridentifying the compositions covered. There may be otherrequirements necessary for identifying particular
4、characteris-tics important to specific applications. Those may be specifiedby using the suffixes in accordance with Section 5.1.3 The values stated in SI units are to be regarded as thestandard.NOTE 1This specification and ISO 7391-1 and ISO 7391-2 addressthe same subject matter, but differ in techn
5、ical content.1.4 The following hazards caveat pertains only to the testmethods portion, Section 12, of this specification. This stan-dard does not purport to address all safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate saf
6、ety and health practicesand determine the applicability or regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2D 256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD 638 Test Method for Tensile Properties of PlasticsD 648 Test Method for Deflecti
7、on Temperature of PlasticsUnder Flexural Load in the Edgewise PositionD 790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD 792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 883 Terminol
8、ogy Relating to PlasticsD 1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 2584 Test Method for Ignition Loss of Cured ReinforcedResinsD 3892 Practice for Packaging/Packing of PlasticsD 4000 Classification Sys
9、tem for Specifying Plastic Mate-rialsD 5630 Test Method for Ash Content in PlasticsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 169 Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis2.2 ISO Standard:3ISO 7391-1 Plastic
10、sPolycarbonate Molding and Extru-sion Materials (Part 1: Designation2006)ISO 7391-2 PlasticsPolycarbonate Molding and Extru-sion Materials (Part 2: Preparation of Test Specimens andDetermination of Properties)3. Terminology3.1 DefinitionsThe terminology used in this specificationis in accordance wit
11、h Terminologies D 883 and D 1600. Thepolycarbonate materials will be designated PC as specified inTerminology D 1600.4. Classification4.1 Unfilled polycarbonate materials are classified intogroups according to their composition. These groups aresubdivided into classes and grades as shown in Table PC
12、1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved April 15, 2009. Published June 2009. Originallyapproved in 1980. Last previous edition approved in 2002 as D 3935
13、- 02.2For 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.3Available from American National Standards Institute (A
14、NSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.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 States.TABLE PC Polycarbonate Materials and Detail Requ
15、irementsNote The values are for naturals; colors may be different.Group Description Class Description Grade DescriptionAFlow Rate,BTest MethodD 1238,g/10 minSpecificGravity, TestMethodD 792IzodImpact,CTestMethodsD 256,J/m, minTensileYieldStrengthDElongationatBreakDFlexuralModulus,ETestMethodsD 790,M
16、Pa, minDeflectionTempera-ture, TestMethodD 648,FC, minTest Method D 638,MPa, min01 PC 1 general purpose 1 24 1.191.22 use Table B2 15 to 30 1.191.22 use Table B3 12 to 20 1.191.22 640 55 100 2000 1264 9 to 18 1.191.22 750 60 105 2100 1265 6 to 13 1.191.22 750 60 110 2200 1286 4 to 8 1.191.22 750 60
17、110 2200 1287 24 1.191.22 use Table B2 15 to 30 1.191.22 use Table B3 12 to 20 1.191.22 640 55 100 2000 1264 9 to 18 1.191.22 640 60 100 2100 1265 6 to 13 1.191.22 640 60 105 2200 1286 4 to 8 1.191.22 640 60 110 2200 1287 24 1.191.22 use Table B2 15 to 30 1.191.22 use Table B3 12 to 20 1.191.22 640
18、55 100 2000 1244 9 to 18 1.191.22 750 60 105 2100 1245 6 to 13 1.191.22 750 60 110 2100 1266 4 to 8 1.191.22 750 60 110 2200 1267 24 1.191.22 use Table B2 15 to 30 1.191.22 use Table B3 12 to 20 1.191.22 640 55 100 2000 1264 9 to 18 1.191.22 750 60 105 2100 1265 6 to 13 1.191.22 750 60 110 2200 1286
19、 4 to 8 1.191.22 750 60 110 2200 1287 24 1.221.26 use Table B2 15 to 30 1.221.26 use Table B3 12 to 20 1.221.26 80 60 100 2100 1284 9 to 18 1.221.26 80 60 110 2200 1285 6 to 13 1.221.26 90 60 110 2200 1306 4 to 8 1.221.26 90 60 110 2200 1307 24 1.221.26 use Table B2 15 to 30 1.221.26 use Table B3 12
20、 to 20 1.221.26 80 60 100 2100 1264 9 to 18 1.221.26 80 60 110 2200 1265 6 to 13 1.221.26 90 60 110 2200 1286 4 to 8 1.221.26 90 60 110 2200 1307 50 1.181.22 use Table B2 nominal 45 1.181.22 570 50 100 2070 1043 nominal 29 1.181.22 620 50 100 2070 1064 nominal 18 1.181.22 770 50 100 2160 1075 nomina
21、l 10 1.181.22 810 50 100 2200 1080 other . . . . . . .2UVHstabilized 1 50 1.181.22 use Table B2 nominal 45 1.181.22 570 50 100 2070 1023 nominal 29 1.181.22 620 50 100 2070 1044 nominal 18 1.181.22 770 50 100 2160 1055 nominal 10 1.181.22 810 50 100 2200 1060 other . . . . . . .3 impact-modified 0 o
22、ther . . . . . . .4 FDAJcompliantformulations1 50 1.181.22 use Table B2 nominal 45 1.181.22 570 50 100 2070 1043 nominal 29 1.181.22 620 50 100 2070 1064 nominal 18 1.181.22 770 50 100 2160 1075 nominal 10 1.181.22 810 50 100 2200 1080 other . . . . . . .5 flame-retardedG1 TBD 1.181.22 use Table B0
23、other . . . . . . .0 other 0 other . . . . . . .06 PC copolymerlow-heat easyflow1 general purpose 1 TBD 1.181.22 use Table B0 other . . . . . . .2 UV stabilizedH1 TBD 1.181.22 . . use Table B0 other . . . . . . .3 impact-modified 1 TBD 1.171.22 use Table B0 other . . . . .4 FDAJcompliantformulations
24、1 TBD 1.181.22 use Table B0 other . . . . . . .5 flame-retardedG1 TBD 1.181.22 use Table B0 other . . . . . . .0 other 0 other . . . . . . .99 PC otherI0 other 0 other . . . . . . .AAll grades are listed by performance requirements.BUse condition 300/1.2 for Groups 01, 02, and 05. Define the conditi
25、ons for other groups in the suffixes as needed.CTest specimens are 3.2 mm thick, with a notch radius of 0.25 mm, tested by Method A.DTest specimens are Type I tensile bars, 3.2 mm thick, tested at a crosshead speed of 50 mm/min.ETest specimens are 3.2 by 12.7 mm, tested by Method I, Procedure A (Tan
26、gent), at a crosshead speed of 1.3 mm/min and a span-to-depth ratio of 16 to 1.FTest specimens are 3.2 mm thick, tested at 1820 kPa, and are not annealed before testing.GUse suffix letter F, with the appropriate digits allowed in Classification D 4000, to define specific requirements.HRefer to Pract
27、ices E 169 for testing procedure. Specific requirements shall be stated in the purchase order or contract.ITest specimens for Group 1, Class 4, Grade 1 are 6.4 mm thick with a notch radius of 0.25 mm and are tested by Method A.JManufactured in compliance with Food Additive Regulation 21CFR177.1580 g
28、overning polycarbonate resins for food-contact applicationsNOTE 2An example of this classification system is as follows: thedesignation PC0214 indicates:PC = polycarbonate as found in Terminology D 1600,02 = polycarbonate copolymer-flame retarded (group),1 = general purpose (class), and4 = requireme
29、nts given in Table PC.4.1.1 To facilitate the specification of new, special, orrecycled materials, the “other” category (0) for class or grade,or both, may be used as indicated in Table PC. The propertiesof these materials may be specified using Tables A, B, or R asthey apply.4.2 Reinforced, pigment
30、ed, filled, and lubricated versions ofpolycarbonate materials may be classified in accordance withTables PC and A, B, or R. Table PC is used to specify basicmaterials, and Tables A or B are used to specify the propertyrequirements after the addition of reinforcement, pigments,fillers, or lubricants
31、at the nominal level indicated (see 4.2.1).Table R is used for recycled materials.D39350934.2.1 A single letter shall be used to indicate the majorcategory of the reinforcement, along with two numbers indi-cating the nominal percentage of additive(s) by mass, with thetolerances as tabulated as follo
32、ws:Category MaterialTolerance(Based on the Total Mass)C carbon and graphite fiber-reinforced62 percentage pointsG glass-reinforced15 % glass content 63 percentage pointsL lubricants (such as PTFE,graphite, silicone, and molyb-denum disulfide)depends on material andprocessto be specifiedM mineral-rei
33、nforced 62 percentage pointsR combination/mixtures of rein-forcements or other fillers/reinforcements63 percentage points based ontotal reinforcementNOTE 3If necessary, additional requirements may be specified usingsuffixes, in accordance with Section 5. Special agreements on tolerancesmay be requir
34、ed when levels are below 5 %. The ash content of filled orreinforced materials may be determined using Test Method D 2584 whereapplicable.4.2.2 Specific requirements for reinforced, filled, or lubri-cated polycarbonate materials shall be shown by a six-character designation that will consist of the
35、letter A or B andthe five digits comprising the cell numbers for the propertyrequirements in the order in which they occur in Tables A or B.4.2.2.1 Although the values listed in Tables A and B arenecessary to include the range of properties available inexisting materials, users should not infer that
36、 every possiblecombination of the properties exists or can be obtained.4.2.3 When the grade of the basic material is not shown, oris not important, a “0” grade classification shall be used forreinforced materials in this system.NOTE 4An example of this classification system for reinforcedpolycarbona
37、te material is as follows: the designation PC0110G10A22230indicates:PC0110 = general-purpose polycarbonate from Table PC,G10 = glass reinforced at nominal 10 % level,A = Table A property requirements,2 = 60-MPa tensile strength, min,2 = 3000-MPa flexural modulus, min,2 = 80-J/m Izod impact strength,
38、 min,3 = 125C deflection temperature, min, and0 = unspecified.If no properties are specified, the designation is PC0110G10A00000.4.3 Table B has been incorporated into this specification tofacilitate the classification of special materials where Table PCor Table A do not reflect the required propert
39、ies. Table B shallbe used in the same manner as Table A.NOTE 5The mechanical properties of polycarbonates can be affectedby the amounts and types of additives and colorants used. The most oftenobserved effect is a change in the ductility of the material as evidenced inreductions of up to 90 % in Izo
40、d impact strength and 25 % or more intensile elongation. A classification using Table PC and Table B should beused if properties of pigmented or specially formulated polycarbonatesneed to be specified.NOTE 6An example of this classification system for a special poly-carbonate material is as follows:
41、 the designation PC0110B34720 indi-cates:PC0110 = general-purpose polycarbonate from Table PC,B = Table B property requirements,3 = 60-MPa tensile strength, min,4 = 2100-MPa flexural modulus, min,7 = 640-J/m Izod impact strength, min,2 = 105C deflection temperature, min, and0 = unspecified.4.4 The s
42、hort- and long-term mechanical properties ofpolycarbonate materials can be affected adversely by their priorprocessing as well as end-use exposure to chemicals, weather-ing, and secondary finishing steps. Efforts to reuse materialsmay include direct feedback into the system from which theyare genera
43、ted, or they could involve isolation for reuse at othertimes into other processes or parts. Most manufacturersliterature contains recommendations regarding direct feedbackpractices to aid the user in maintaining the properties of theoriginal materials as much as possible. When polycarbonateresins ar
44、e isolated and reprocessed in conjunction with fillers,additives, colorants, etc., there is a special risk that theproperties of the final products may not be equal to thoseobtained when “virgin” resins are used. While the test speci-men properties called out in this specification may be used toscre
45、en these materials, the user should take precautions toensure that parts made from these materials meet the desiredparameters. Group and class designations from Table PC, usedin conjunction with Grade Designation 0, allow line callouts tobe defined for recycled resins. The group, class, and gradesgi
46、ven should be used with the property ranges from Table R, asappropriate. Table R lists two impact and two tensile propertiesto allow callouts for both filled and unfilled resins. It isintended that only one be used in a given callout and that theunused properties be given an 0, “unspecified,” cell d
47、esigna-tion.4.5 When property requirements involving ISO criteria areto be specified, cell Tables C through H, as defined inClassification D 4000, should be used. Appropriate suffixes,detailing specimen dimensions, test speeds, etc., must also bedefined when using these tables.5. Suffixes5.1 When re
48、quirements not covered by the basic cell tablesneed to be specified, suffixes shall be defined in accordancewith Classification D 4000.5.2 Requirements specified by suffix references always takeprecedence over values from the property or cell tables for thesame properties.6. General Requirements6.1
49、The plastic compositions shall be uniform and shallconform to the requirements herein.7. Detail Requirements7.1 Test specimens for the various materials shall conformto the requirements in accordance with Tables PC, A, B, and Rand the suffix requirements, as they apply.7.2 For the purpose of determining conformance with therequirements of this specification, all specified limits in thisspecification are absolute limits in accordance with PracticeE29.7.2.1 With the absolute method, an observed or calculatedvalue i
