ASTM D1430-2010 Standard Classification System for Polychlorotrifluoroethylene (PCTFE) Plastics《聚氯三氟乙烯(PCTFE)塑料的标准分类体系》.pdf
《ASTM D1430-2010 Standard Classification System for Polychlorotrifluoroethylene (PCTFE) Plastics《聚氯三氟乙烯(PCTFE)塑料的标准分类体系》.pdf》由会员分享,可在线阅读,更多相关《ASTM D1430-2010 Standard Classification System for Polychlorotrifluoroethylene (PCTFE) Plastics《聚氯三氟乙烯(PCTFE)塑料的标准分类体系》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D1430 10Standard Classification System forPolychlorotrifluoroethylene (PCTFE) Plastics1This standard is issued under the fixed designation D1430; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This classification system covers polychlorotrif
3、luoroet-hylene (PCTFE) plastics that consist of at least 90 % chlorot-rifluoroethylene and are suitable for extrusion and for com-pression and injection molding. The remaining 10 % shallinclude chemical modifications, such as co-monomers, but notcolorants, fillers, plasticizers, or mechanical blends
4、 with otherresins. This classification system does not cover recycledPCTFE materials.1.2 The physical and electrical properties of parts molded orextruded from PCTFE molding compounds vary with thecrystalline content obtained during processing and subsequentannealing. Accordingly, the numerical valu
5、es listed in Table 1apply only to the test specimens molded in accordance withSection 8. These values are not applicable as design criteria tosemi-finished and finished parts prepared and annealed underother conditions.1.3 The values stated in SI units as detailed in IEEE/ASTMSI-10 are to be regarde
6、d as the standard. The values given inparentheses are for information only.1.4 The following precautionary statement pertains only tothe test methods portion, Section 10, of this classificationsystem: This standard does not purport to address all of thesafety concerns, if any, associated with its us
7、e. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE 1Although this classification system and ISO 12086-1 (1995)and ISO 12086-2 (1995) differ in approach or detail, d
8、ata obtained usingeither are technically equivalent.2. Referenced Documents2.1 ASTM Standards:2D150 Test Methods for AC Loss Characteristics and Per-mittivity (Dielectric Constant) of Solid Electrical Insula-tionD618 Practice for Conditioning Plastics for TestingD621 Test Methods for Deformation of
9、Plastics UnderLoad3D792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology for Abbreviated Terms Relating toPlasticsD3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Crystalliza
10、tion of Polymers byDifferential Scanning CalorimetryD3892 Practice for Packaging/Packing of PlasticsD4591 Test Method for Determining Temperatures andHeats of Transitions of Fluoropolymers by DifferentialScanning CalorimetryD4895 Specification for Polytetrafluoroethylene (PTFE)Resin Produced From Di
11、spersionD7194 Specification for Aerospace Parts Machined fromPolychlorotrifluoroethylene (PCTFE)D7211 Specification for Parts Machined from Polychlorot-rifluoroethylene (PCTFE) and Intended for General Use2.2 ISO Standard:4ISO 12086-1 (1995) PlasticsFluoropolymer Dispersionsand Moulding and Extrusio
12、n Materials, Part 1ISO 12086-2 (1995) PlasticsFluoropolymer Dispersions1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials (Section D20.15.12).Current edition approved Nov. 1, 2010. Pu
13、blished January 2011. Originallyapproved in 1956. Last previous edition approved in 2008 as D1430 03(2008).DOI: 10.1520/D1430-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informati
14、on, refer to the standards Document Summary page onthe ASTM website.3Withdrawn4Available from American National Standards Institute (ANSI), 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
15、, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.and Moulding and Extrusion Materials, Part 23. Terminology3.1 DefinitionsDefinitions of terms used in this classifi-cation system shall be in accordance with Terminology D883.3.1.1 lot, none production run or unifo
16、rm blend of two ormore production runs. D48953.2 Definitions of Terms Specific to This Standard:3.2.1 preforming, na process to compress the materialunder pressure in a mold to form a preform.3.2.2 zero strength time (ZST ), ntime measured in accor-dance with Section 10 of this classification system
17、 to check therelative molecular weight of PCTFE material.3.3 Abbreviations:AbbreviationsAbbreviated terms are inaccordance with Terminology D1600.4. Classification4.1 PCTFE materials in powders and pellets are classifiedinto one group. The group is subdivided into classes based onchemical compositio
18、n. These classes are subdivided intogrades as shown in the Basic Property Table (Table 1).An example of this classification system is given as follows:Group 01 = PCTFEClass 1 = homopolymerGrade 2 = having properties per Table 1 (Grade 2)4.1.1 To facilitate incorporation of future material the“other”
19、 category for group (01), class (0), and grade (0) areshown in Table 1.5. General Requirements5.1 The molding or extrusion material shall be of uniformcomposition and so compounded as to conform to the require-ments of this classification system.6. Detail Requirements6.1 Test specimens prepared in a
20、ccordance with Section 9shall conform to the requirements prescribed for the particulartype and grade in Table 1.6.2 For finished PCTFE parts made from resin meetingGroup 01, Class 1, Grade 3 requirements, and intended foraerospace use, detail requirements given in SpecificationD7194 shall be follow
21、ed.6.3 For finished PCTFE parts made from resin Group 01,Class 1, Grade 0, 1, 2, or 3 requirements, and intended forgeneral use, detail requirements given in Specification D7211shall be followed.7. Sampling7.1 Sampling shall be statistically adequate to satisfy therequirements of 11.4.8. Number of T
22、ests8.1 One set of test specimens as prescribed in Section 9shall be considered sufficient for testing each batch. Theaverage result for the specimens tested shall conform to therequirements prescribed in this classification system.9. Specimen Preparation9.1 Test specimens shall be cut from compress
23、ion-moldedsheets 1.58 6 0.08 mm (0.062 6 0.003 in.) thick, preparedfrom the resins in the following manner:9.1.1 PreformingPowder resin shall be preformed prior tomolding in the following way: Place 30 6 0.5 g of resin intoa 57-mm (2.25-in.) diameter positive-pressure compressionmold and compress th
24、e material at room temperature into apreform having a density of 1.4 to 1.5 g/cm3.Apressure of 68.9MPa (10 000 psi) will satisfactorily accomplish the densifica-tion.TABLE 1 Requirements for PCTFE Molded Test SpecimensPropertiesGroup Class Description GradeSpecificGravity,A23/23CZeroStrengthTime, sB
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