1、Designation: D 1418 06Standard Practice forRubber and Rubber LaticesNomenclature1This standard is issued under the fixed designation D 1418; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in par
2、entheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.INTRODUCTIONThe system of designating rubbers and rubber latices in this pract
3、ice was developed in 1955 toreplace designations GR-A, GR-I, GR-M, GR-S and GR-T (standing for “Government Rubber”:A-acrylontrile, I-isobutylene, S-styrene, M-monochlorobutadiene and T-thiosulfide), used for syn-thetic rubbers made in government owned plants. The system was designed to be a genericc
4、lassification of the rubber polymers that would accommodate both existing and future rubbers. Thechemical composition of the polymer chain was selected as the best classification proposal to achievethis goal. The rubber polymers were divided into eight classes as described in Section 3 of thispracti
5、ce. The letter symbol for the class was given last in the designation for the rubber. Preceding theclass symbol were letter symbols to designate either the monomers used to prepare the polymer or thesubstituent groups on the polymer chain. The system has been successful both in accommodating themany
6、 new polymers developed since 1955 and in conveying to the user certain characteristics of therubber associated with the chemical composition.1. Scope1.1 This practice covers a system of general classificationfor the basic rubbers both in dry and latex forms determinedfrom the chemical composition o
7、f the polymer chain.1.2 The purpose of this practice is to provide a standardiza-tion of terms for use in industry, commerce, and governmentand is not intended to conflict with but rather to act as asupplement to existing trade names and trademarks.1.3 In technical papers or presentations the name o
8、f thepolymer should be used if possible. The symbols can followthe chemical name for use in later references.NOTE 1For terms related to thermoplastic elastomers, see PracticeD 5538.2. Referenced Documents2.1 ASTM Standards:2D 5538 Practice for Thermoplastic ElastomersTerminology and Abbreviations3.
9、Rubbers3.1 Rubbers in both dry and latex form shall be classifiedand coded from the chemical composition of the polymer chainin the following manner:MRubbers having a saturated chain of the polymethylenetype.NRubbers having nitrogen, but not oxygen or phosphorus,in the polymer chain.ORubbers having
10、oxygen in the polymer chain.RRubbers having an unsaturated carbon chain, for ex-ample, natural rubber and synthetic rubbers derived at leastpartly from diolefins.QRubbers having silicon and oxygen in the polymerchain.TRubbers having sulfur in the polymer chain.URubbers having carbon, oxygen, and nit
11、rogen in thepolymer chain.ZRubbers having phosphorus and nitrogen in the polymerchain.4. Class Designations4.1 The “M” class includes rubbers having a saturated chainof the polymethylene type. The following classification shallbe used:ACMCopolymers of ethyl or other acrylate and a smallamount of mon
12、omer which facilitates vulcanization.1This practice is under the jurisdiction of ASTM Committee D11 on Rubber andis the direct responsibility of Subcommittee D11.08 on Terminology.Current edition approved March 1, 2006. Published March 2006. Originallyapproved in 1956. Last previous edition approved
13、 in 2005 as D 1418 05.2For 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
14、 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.AEMCopolymers of ethyl or other acrylates and ethylene.ANMCopolymers of ethyl or other acrylate and acryloni-trile.BIMSMBrominated polymers derived from a copolymerof isobutylene and p-methylstyrene.CMChloro-polyethylene.CFM
15、Polychloro-trifluoro-ethylene.CSMChloro-sulfonyl-polyethylene.EOMCopolymers of ethylene and an octene.EPDMTerpolymer of ethylene, propylene, and a dienewith the residual unsaturated portion of the diene in the sidechain.EPMCopolymers of ethylene and propylene.EVMCopolymers of ethylene and vinyl acet
16、ate.FEPMA fluoro rubber of the polymethylene type onlycontaining one or more of the monomeric alkyl, perfluoroalkyl,and/or perfluoroalkoxy groups, with or without a cure sitemonomer (having a reactive pendant group).FFKMPerfluorinated rubbers of the polymethylene typehaving all fluoro, perfluoroalky
17、l, or perfluoroalkoxy substituentgroups on the polymer chain; a small fraction of these groupsmay contain functionality to facilitate vulcanization.FKMFluoro rubber of the polymethylene type that utilizesvinylidene fluoride as a comonomer and has substituent fluoro,alkyl, perfluoroalkyl or perfluoro
18、alkoxy groups on the polymerchain, with or without a cure site monomer (having a reactivependant group).Type 1Dipolymer of hexafluoropropylene and vinylidenefluoride.Type 2Terpolymer of tetrafluoroethylene, vinylidene fluo-ride, and hexafluoropropylene.Type 3Terpolymer of tetrafluoroethylene, a fluo
19、rinatedvinyl ether, and vinylidene fluoride.Type 4Terpolymer of tetrafluoroethylene, propylene andvinylidene fluoride.Type 5Pentapolymer of tetrafluoroethylene, hexafluoro-propylene, vinylidene fluoride, ethylene, and a fluorinatedvinyl ether.IMPolyisobutylene (not curable).4.2 The “O” class include
20、s rubbers having oxygen in thepolymer chain. The following classification shall be used:COPolychloromethyl oxirane (epichlorohydrin polymer).ECOEthylene oxide (oxirane) and chloromethyl oxirane(epichlorohydrin copolymer).GECOEpichlorohydrin-ethylene oxide-allylglycidyletherterpolymer.GPOPolypropylen
21、e oxide and allyl glycidyl ether.4.3 The “R” class shall be defined by inserting the name ofthe monomer or monomers before the word “rubber” fromwhich it was prepared (except for natural rubber). The letterimmediately preceding the letter R shall signify the diolefinfrom which the rubber was prepare
22、d (except for naturalrubber). Any letter or letters preceding this diolefin lettersignifies the comonomer or comonomers. A parenthetical letter(S), for solution, or (E), for emulsion, is used to indicatewhether the rubber or latex was prepared by solution oremulsion polymerization. The following cla
23、ssification shall beused for rubbers of the “R” class:ABRAcrylate-butadiene.BIIRBromo-isobutene-isoprene.BRButadiene.CIIRChloro-isobutene-isoprene.CRChloroprene.ENREpoxidized natural rubber.ENRGEpoxidized guayule natural rubber.HNBRHydrogenated acrylonitrile-butadiene.IIRIsobutene-isoprene.IRIsopren
24、e, synthetic.NBRAcrylonitrile-butadiene.NIRAcrylonitrile-isoprene.NRNatural rubber.NRGGuayule natural rubber.PBRVinylpyridine-butadiene.PSBRVinylpyridine-styrene-butadiene.SBRStyrene-butadiene.SIRStyrene-isoprene rubbers.4.3.1 Rubbers of the “R” class having substitute carboxylicacid (COOH) groups o
25、n the polymer chain shall be identifiedby the prefix “X”:XBRCarboxylic-butadiene rubber.XSBRCarboxylic-styrene-butadiene.XNBRCarboxylic-acrylonitrile-butadiene.NOTE 2When designating latex or latices the terminology shall be, forexample, “SBR latex” or “SBR latices.”4.4 The “Q” class shall be define
26、d by inserting the name ofthe substituent group on the polymer chain prior to the siliconedesignation. The following classification shall be used formembers of the “Q” class.(The M preceding the Q indicates that methyl is one of thesubstituent groups on the polymer chain.)FMQSilicone rubber having b
27、oth methyl and fluorinesubstituent groups on the polymer chain.FVMQSilicone rubber having fluorine, vinyl, and methylsubstitute groups on the polymer chain.PMQSilicone rubbers having both methyl and phenylsubstituent groups on the polymer chain.PVMQSilicone rubbers having methyl, phenyl, and vinylsu
28、bstituent groups on the polymer chain.MQSilicone rubbers having only methyl substituentgroups on the polymer chain, such as dimethyl polysiloxane.VMQSilicone rubber having both methyl and vinyl sub-stituent groups on the polymer chain.4.5 The “U” class includes rubbers having carbon, oxygen,and nitr
29、ogen in the polymer chain. The following classificationshall be used:AFMUTerpolymer of tetrafluoroethylene, trifluoroni-trosomethane, and nitrosoperfluorobutyric acid.AUPolyester urethane.EUPolyether urethane.4.6 The “T” class includes rubbers having carbon, oxygen,and sulfur in the polymer chain. T
30、he following classificationshall be used for members of the “T” class:OTA rubber having either a -CH2-CH2-O-CH2-O-CH2-CH2group or occasionally an -R-group, where R is an aliphatichydrocarbon between the polysulfide linkages in the polymerchain.D1418062EOTA rubber having a -CH2-CH2-O-CH2-O-CH2-CH2gro
31、up and R groups that are usually -CH2-CH2but occasion-ally other aliphatic groups between the polysulfide linkages inthe polymer chain.4.7 The “Z” class includes rubbers having phosphorus andnitrogen in the polymer chain. The following classificationshall be used:FZA rubber having a -P|CxN- chain an
32、d having fluoro-alkoxy groups attached to the phosphorus atoms in the chain.PZA rubber having a -P|CxN- chain and having aryloxy(phenoxy and substituted phenoxy) groups attached to thephosphorus atoms in the chain.4.8 Mixtures of rubbers are identified by using the classdesignations for the types of
33、 rubbers in the mixture. If thecomposition is known, the major component is listed first; forexample, a blend of NR/BR in 60/40 ratio is designatedNR/BR. If the rubbers are present in equal amounts or if theproportion is unknown, the rubbers should be designated inalphabetical order; for example, BR
34、/NR is used for a 50/50ratio, and BR-NR is used for an unknown composition.5. Keywords5.1 acronyms for latices; acronyms for rubber;nomenclatureAPPENDIXX1. HISTORICAL NOMENCLATUREX1.1 The following terms have been removed from themain body of this standard because they are obsolete and nolonger comm
35、ercially available. This appendix will serve as ahistorical reference.NCRAcrylonitrile-chloropreneSCRStyrene-chloropreneASTM 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 express
36、ly 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 committee and must be reviewed every five years andif not revised,
37、either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may att
38、end. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D1418063
