ASTM D4819-1996(2005) Standard Specification for Flexible Cellular Materials Made From Polyolefin Plastics《聚烯烃塑料制软多孔材料标准规范》.pdf
《ASTM D4819-1996(2005) Standard Specification for Flexible Cellular Materials Made From Polyolefin Plastics《聚烯烃塑料制软多孔材料标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM D4819-1996(2005) Standard Specification for Flexible Cellular Materials Made From Polyolefin Plastics《聚烯烃塑料制软多孔材料标准规范》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 4819 96 (Reapproved 2005)Standard Specification forFlexible Cellular Materials Made From Polyolefin Plastics1This standard is issued under the fixed designation D 4819; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification applies to flexible closed-cell materi-als made from polyolefin plastics and blends o
3、f polyolefinplastics as defined in Section 3.1.2 Extruded or molded shapes too small to permit thecutting of standard test specimens are difficult to classify or testby standard test methods and will usually require specialtesting procedures or the use of standard test sheets.1.3 In case of conflict
4、 between the provisions of thisspecification and those of detailed specifications for a particu-lar product, the latter shall take precedence. These detailedspecifications for the flexible closed-cell polyolefin plasticfoams should state the particular test or tests desired.1.4 In cases involving re
5、feree decisions, SI units shall beused.1.5 This specification does not contain test procedures orvalues for all the suffix letters listed in Table 1 and Table 2.Where the procedure is not described in this specification orspecial limits are desired, or both, the test procedures andvalues must be arr
6、anged between the purchaser and thesupplier.1.6 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.NOTE 1There is no similar or equivalent ISO standard.2. Referenced Documents2.1 ASTM Standards:2C 518 Test Method for Steady-State
7、Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Heat Flow Meter ApparatusD 412 Test Methods for Vulcanized Rubbers and Thermo-plastic Rubbers and Thermoplastic ElastomersTensionD 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic Elastomer
8、sD 1596 Test Method for Dynamic Shock Cushioning Char-acteristics of Packaging MaterialsD 2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics (Oxygen Index)D 3575 Test Methods for Flexible Cellular Materials Madefrom Olefin PolymersE96 Test Met
9、hods for Water Vapor Transmission of Mate-rialsF 355 Test Method for Shock Absorbing Properties ofPlaying Surface Systems and Materials1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.22 on CellularPlastics.Current ed
10、ition approved March 1, 2005. Published March 2005. Originallyapproved in 1988. Last previous edition approved in 1996 as D 4819 - 96.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume info
11、rmation, refer to the standards Document Summary page onthe ASTM website.TABLE 1 Suffix Letter DesignationsA Heat resistanceB Compression set under constant deflectionC Ozone or weather resistanceD Compression deflectionE Oil resistanceF Low temperatureG Tear resistanceH Flex resistanceI Not assigne
12、dJ Abrasion resistanceK Adhesion capabilityL Water absorptionM Flammability resistanceN Impact resistanceO Electrical propertiesP Staining resistanceQ Not assignedR1ResilienceR2Shock absorptionS Thermal stabilityT1Tensile strengthT2Ultimate elongationU Not assignedV Thermal conductivityW DensityX No
13、t assignedY Not assignedZ Special requirementsAA BuoyancyBB Compressive creepCC Dynamic cushioningDD Open cellEE Not assignedFF Water vapor transmission1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 Motor Vehicle Safety Standard
14、:MVSS-302 Flammability of Vehicle Interior MaterialsPassenger Cars, Multipurpose Passenger Vehicles, Trucksand Buses32.3 UL Standard:UL1191 Standard for Components for Personal FlotationDevices43. Terminology3.1 Definitions:3Available from Department of Transportation, Washington, DC.4Available from
15、 Underwriters Laboratories (UL), Corporate Progress, 333Pfingsten Rd., Northbrook, IL 60062.TABLE 2 Property Limits for Flexible Cellular Polyolefin MaterialsSuffixLetterProperty Test Method UnitsMaximumorMinimumSuffix Numbers and Limiting Values123456789B Compression set D 3575 % max . 5 1015202530
16、35 .D Compression deflection D 3575 kPa (psi) 15 30 40 70 105 170 275 . .min 2.0 4.0 6.0 10 15 25 40G Tear strength D 3575 or N/M (lb/in.) 7.0 14 20 27 40 55 68 . .D 624Amin 5.0 10 15 20 30 40 50L Water absorption D 3575 kg/m2. 0.20 0.30 0.40 0.50 1.00 . . .(lb/ft2) max 0.04 0.06 0.08 0.10 0.20M1Fla
17、mmability-ease of D 3575 or % O2min . 15 20 25 30 . . . .ignition-LOI D 2863AM2Flammability-burn rate MVSS302 mm/min . . 50 100 150 255 . . .(in./min) max 2.0 4.0 6.0 10.0R2Shock absorption-Procedure A25 mm (1 in.) thicksamplesF 355 GsBmax . 25 50 75 100 150 200 . .S Thermal stability-dimensionsCD 3
18、575 6% change max 1251015. . . .T1Tensile strength D 3575 or kPa (psi) . 140 275 345 415 550 690 . .D 412Amin 2040 50608010T2Ultimate elongation D 3575 orD 412A% min . 25 50 75 100 150 200 . .V Thermal conductivity, 25mmD 3575 W/(mK) . 0.040 0.046 0.052 0.058 0.063 . . .(1 in.) thick at 24C(75F),mea
19、n temperature 30C(86F), temperaturedifferentialMethod B orC 518A(BTU-in./(1hft2F)max 0.28 0.32 0.36 0.40 0.44W Density D 3575 kg/m3nominal 25 30 50 65 80 95 130 160 .(lb/ft3%,6) max/min 1.5 2.0 3.0 4.0 5.0 6.0 8.0 10.030/25 30/25 25/25 25/25 25/25 25/25 40/25 45/25AA Buoyancy, 24 h exposure at D 357
20、5 or kg/m3. 830 880 910 945 960 . . .23C (73F), under 50 mm(2.0 in.) water headUL1191A(lb/ft3) min 52 55 57 59 60BB Compressive creep, 7 kPa(1.0psi) load at 23C (73F) for1000 hD 3575 % max . 2.0 4.0 6.0 10 15 . . .CC1Dynamic cushioning, 50mmD 3575 or GsBmax . . 30 40 50 60 80 . .(2.0 in.) thick, 7 k
21、Pa (1 psi)loading, 600 mm (23.6 in.)drop, 23C (73F)D 1596ACC2Dynamic cushioning, same D 3575 or GsBmax . . 30 40 50 60 80 . .conditions as CC, exceptfor14 kPa (2 psi) loadingD 1596ACC4Dynamic cushioning, same D 3575 or GsBmax . . 30 40 50 60 80 . .conditions as CC1exceptfor28 kPa (4 psi) loadingD 15
22、96AFF Water vapor transmission E96 ng/(Pasm) . . 0.3 0.4 0.6 0.9 1.8 . .(perm-in.) max 0.2 0.3 0.4 0.6 1.2AMethods shown are equivalent.BG = The dimensionless ratio of missile acceleration during impact to the acceleration of gravity (see Test Method F 355).CPlus ( + ) sign indicates growth, minus (
23、) sign indicates shrinkage.D 4819 96 (2005)23.1.1 blendmixture of polyolefin plastic(s) with otherpolymer(s) in which at least 51 mass % is the polyolefinplastic(s).3.1.2 polyolefin plasticsmaterial based on polymers madeby the polymerization of olefins or copolymerization of olefinswith other polym
24、ers, the polyolefin being at least 51 mass %.3.1.3 resinsolid, semi-solid, or pseudo-solid organic ma-terial that has an indefinite and often high molecular weight,exhibits a tendency to flow when subject to stress, usually hasa softening or melting range, and usually fractures conchoid-ally.4. Clas
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