ASTM D2861-1987(2009) Standard Test Methods for Flexible Composites of Copper Foil with Dielectric Film or Treated Fabrics《复合型带介电薄膜或精致纤维的铜箔柔韧性的标准试验方法》.pdf
《ASTM D2861-1987(2009) Standard Test Methods for Flexible Composites of Copper Foil with Dielectric Film or Treated Fabrics《复合型带介电薄膜或精致纤维的铜箔柔韧性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D2861-1987(2009) Standard Test Methods for Flexible Composites of Copper Foil with Dielectric Film or Treated Fabrics《复合型带介电薄膜或精致纤维的铜箔柔韧性的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D2861 87 (Reapproved 2009)An American National StandardStandard Test Methods forFlexible Composites of Copper Foil with Dielectric Film orTreated Fabrics1This standard is issued under the fixed designation D2861; the number immediately following the designation indicates the year oforig
2、inal adoption or, in 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. Scope1.1 These test methods cover procedures for testing flexiblemateria
3、ls consisting of copper foil combined with eitherdielectric film or with treated or impregnated fabric to formflexible composites used in the manufacture of flexible ormultilayer circuitry, or both.1.2 The procedures appear as follows:ASTMReferenceProcedure Section MethodConditioning 5Flex Life of t
4、he Composite 20-25Peel Strength of the Composite 11-19Specimen Preparation 6 D1825Strain Relief Due to Etching 26-32Testing of the Dielectric Portion ofthe Composite 7-10 D1825,D2305,D9021.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are math
5、ematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and he
6、alth practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D902 Test Methods for Flexible Resin-Coated Glass Fab-rics and Glass Fabric Tapes Used for Electrical InsulationD1711 Terminology Relating to Electrical InsulationD1825 P
7、ractice for Etching and Cleaning Copper-CladElectrical Insulating Materials and Thermosetting Lami-nates for Electrical TestingD2305 Test Methods for Polymeric Films Used for Electri-cal InsulationD6054 Practice for Conditioning Electrical Insulating Ma-terials for Testing3. Terminology3.1 Definitio
8、ns: For definitions of terms used in this stan-dard, refer to Terminology D1711.4. Selection of Test Specimens4.1 Select specimens for test from portions of material thatare free of obvious defects, unless the purpose of the test is toevaluate these defects.5. Conditioning5.1 Unless otherwise specif
9、ied, conduct all conditioning andtesting in the standard laboratory atmosphere specified inPractice D6054. Condition specimens at least 18 h beforetesting.6. Specimen Preparation6.1 Prepare specimens by etching without scrubbing, usingPractice D1825. The etching reagents described in PracticeD1825 m
10、ay be incompatible with some composite materials.The use of other reagents should be noted in the report for thetest involved.TESTING OF THE DIELECTRIC PORTION OF THECOMPOSITE7. Significance and Use7.1 The electrical and mechanical characteristics of circuitsproduced from flexible composites of copp
11、er foil with dielec-tric materials will to a large extent depend on the properties ofthe dielectric portion of the composite. Measurement of theseproperties is essential for predicting performance of the circuit.1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and El
12、ectronic Insulating Materials and are the direct responsibility ofSubcommittee D09.07 on Flexible and Rigid Insulating Materials.Current edition approved Oct. 1, 2009. Published February 2010. Originallyapproved in 1970. Last previous edition approved in 2004 as D2861 87(2004).DOI: 10.1520/D2861-87R
13、09.2For 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO B
14、ox C700, West Conshohocken, PA 19428-2959, United States.8. Test Specimen8.1 Take specimens as required from a sample that has beenetched free of copper foil in accordance with Section 6. Takethe thickness from the material that remains after etching.9. Procedure9.1 If the dielectric portion of the
15、composite is a film, usethe procedures described in Test Methods D2305.9.2 If the dielectric portion of the composite is a treatedfabric, use the procedures described in Test Methods D902.10. Precision and Bias10.1 This test method has been in use for many years, but nostatement of precision has bee
16、n available and no activity isplanned to develop such a statement. A statement of bias is notapplicable in view of the lack of a standard reference materialfor this property.PEEL STRENGTH OF THE COMPOSITE11. Significance and Use11.1 The peel strength between copper foil and the dielectricmaterial de
17、termines to what degree the composite can with-stand processing and remain intact during service.11.2 Flexible composites generally require more elaboratemeans for proper support during peel testing than do rigid,copper-clad laminates. The selection of the proper procedurewill depend on the nature o
18、f the composite being tested, asshown by the following methods:11.2.1 Method A, Clamped Between Plates This testmethod is generally used when the material tested is not soflexible or slippery that it allows the substrate to deflect duringthe test.11.2.2 Method B, Using Adhesive Tape This test method
19、is used principally for its convenience, but is limited to caseswhere the peel strength of the material is not so great as toallow lifting of the substrate from the plate during removal ofthe copper.11.2.3 Method C, Free-turning DrumThis test method isalso primarily used for its convenience, and is
20、applicable whereit is desired to prevent lifting of the dielectric material from theplate during removal of the copper.12. Apparatus12.1 Force-Measuring InstrumentA strain gage, dial-typeforce meter, or similar instrument sensitive to 0.05 lbf (0.2 N).12.2 Chart Recorder (optional)recording instrume
21、nt ca-pable of converting the force measured in 12.1 to a graphicalrecord.12.3 Peeling MechanismA device capable of peeling thecopper from the dielectric at an angle of 90 to the specimen ata rate of 2 6 0.1 in. (50 6 3 mm)/min.12.4 Specimen HolderA device for clamping the speci-men flat and in the
22、correct position for testing with a minimumof the dielectric left unsupported. A device equivalent to thatshown in Fig. 1 is required.13. Test Specimen13.1 Unless otherwise specified, prepare the test specimensto be a 2.5-in. (62-mm) square of the composite on which thepattern shown in Fig. 2 is etc
23、hed in accordance with Section 6.The dielectric portion may be trimmed to conveniently fit theapparatus being used.13.2 Orient the pattern so that the long direction of thecopper strips is either machine direction or cross-machinedirection as required.14. Method AClamped Between Plates14.1 Clamp the
24、 test specimen between the plates as shownin Fig. 1. Mount the plate horizontally.14.2 Carefully initiate the removal of each of the copperstrips by lifting the12-in. (13-mm) land and peeling back toabout 1 in. (25 mm).14.3 Attach the free end of the strip to the force indicator bymeans of a clamp e
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