1、Designation: E 1800 03Standard Specification forAdhesive for Bonding Foam Cored Sandwich Panels (160FElevated Humidity Service), Type I Panels1This standard is issued under the fixed designation E 1800; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This
3、 specification covers two-part paste adhesives forbonding foam core sandwich panels. The adhesive may be usedfor new production or depot maintenance. The adhesive shouldbe suitable for forming bonds that can withstand long termexposure to temperatures from 55 to 71C (67 to 160F)and also withstand co
4、mbinations of stress, temperature, andhumidity expected to be encountered in service. The adhesivesshall be used for bonding aluminum alloy facing to foam core,inserts, edge attachments, and other components of a foamcored sandwich panel.1.2 The values stated in SI units are to be regarded as thesta
5、ndard where only SI units are given or where SI units aregiven first followed by English units; where English units aregiven first followed by SI units, the English units are to beregarded as the standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated wit
6、h its use. 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.2. Referenced Documents2.1 ASTM Standards:B 209 Specification for Aluminum and Aluminum-AlloySheet and Plate2D
7、 1002 Test Method forApparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Ten-sion Loading (Metal to Metal)3E 864 Practice for Surface Preparation of Aluminum Alloysto Be Adhesively Bonded in Honeycomb Shelter Panels4E 1749 Terminology of Rigid Wall Relocatable Shelters4E
8、 1793 Practice for Preparation of Aluminum Alloy forBonding in Foam and Beam Type Transportable Shelters42.2 Military Standard:MIL-STD-202F Test Methods for Electronic and ElectricalComponent Parts52.3 Federal Specification:QQ-A-250/11d Aluminum Alloy 6061T6, Plate and Sheet53. Terminology3.1 Defini
9、tionsSee Terminology E 1749 for definitions ofterms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 adhesive lifethe maximum time that an adhesive,when mixed in a prescribed quantity, can set at a designatedtemperature, after which the adhesive, when used to prepa
10、respecimens, will deliver the required properties.4. Requirements4.1 MaterialThe adhesive shall be a two-part thermoset-ting epoxy paste containing no asbestos, and when tested usingthe test methods described in Section 6, shall meet therequirements of Section 4. The adhesive shall not have adetrime
11、ntal effect on the components being bonded over therange of temperatures at which the adhesive will be used.4.2 Working Characteristics:4.2.1 ApplicationThe adhesive shall be suitable for appli-cation to facings and foam core materials. The adhesive shallbe suitable for spray application to faying s
12、urfaces.4.2.2 CuringThe time, temperature, and pressure used tocure the adhesive shall be within the range specified herein.4.2.2.1 Curing Time and TemperatureThe adhesive, whenmixed in accordance with the manufacturers instruction, shallmeet the requirements of this specification when cured at atem
13、perature of not less than 52C (125F) for 4 h, or 63C(145F) for 60 min. The timing of the cure shall start when thepanel skins have reached the specified temperature. Thetemperature for the cure shall be fully attained within 2 h afterthe first application of the adhesive to the faying surface.4.2.2.
14、2 Curing PressureSpecimens for testing under thisspecification shall be cured under a normal load of 0.05 61This specification is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.53on Materials and Processes for Durable Rigi
15、dwall Relocatable Structures.Current edition approved April 10, 2003. Published May 2003. Originallyapproved in 1996. Last previous edition approved in 2000 as E 180000.2Annual Book of ASTM Standards, Vol 02.02.3Annual Book of ASTM Standards, Vol 15.06.4Annual Book of ASTM Standards, Vol 04.07.5Avai
16、lable from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.0.007 MPa (8.0 6 0.5 psi). No more than 75 min at 25C(77F)
17、shall elapse between the application of the adhesive tothe faying surface and the application of the pressure.4.2.3 Mix RatioThe mix ratio for the two parts of theadhesive shall be as defined by the manufacturer.4.3 Storage LifeThe storage life shall not exceed one yearfrom the date of manufacture,
18、when the components of theadhesive shall be stored at a temperature between 10C (50F)and 42C (90F). The storage life of the two parts of theadhesive, from the date of shipment, when stored in airtightcontainers at 23 6 3C (73.4 6 5.4F), shall be at least 12months. The adhesive shall be considered to
19、 have met thisstorage life requirement if all the characteristics described in4.1 and 4.5 are met by the adhesive after the 12 month storageperiod described above.4.4 Adhesive LifeThe adhesive life of one quart of themixed adhesive at 25C (77F) shall not be less than 160 min,at which time the adhesi
20、ve shall meet the requirements of 4.5.4.5 Mechanical PropertiesThe minimum mechanicalproperties of the adhesives, when cured as specified, shall meetthe requirements of Table 1.5. Significance and Use5.1 This specification is intended to provide information onthe properties of adhesives, and the tes
21、t methods required toevaluate adhesives to be used in the production bonding ofaluminum alloys to foam core materials for the manufacture oftactical shelters.6. Test Methods6.1 Qualification TestsFor qualification, the adhesiveshall be tested using the tests described in this section. Sheartests sha
22、ll be performed in accordance with Test MethodD 1002 except that the length of the test coupon shall be 103.7mm (414 in.) and the thickness shall be 2.196 mm (0.090 in.).6.2 Preparation of Test Specimens Prepare at least tenspecimens for each separate test. The metal to be bonded shallbe 6061-T6 (Fe
23、deral Specification QQ-A-250/11d or Specifi-cation B 209) cleaned as specified in Practice E 864. Time,temperature, and pressure for curing the adhesive shall be asspecified in 5.3.2.1 and 5.3.2.2.6.3 Room Temperature ShearSubject specimens to a ten-sile shear test at a room temperature of 27 6 6C (
24、80 6 10F).6.4 Low Temperature ShearTest specimens at 54 6 3C(65 6 5F). Bring the specimens to temperature as indicatedby a thermocouple at the bond area and stabilize for 10 6 1min just prior to test. Stabilize the chamber used to test thespecimens at the test temperature for 45 min prior to testing
25、.6.5 High Temperature ShearTest specimens at93 + 0, 3C (200 + 0, 5F). Bring the specimens to tem-perature as indicated by a thermocouple at the bond area andstabilize for 10 min just prior to test. Stabilize the chamberused to test the specimens at the test temperature for 45 minprior to testing.6.6
26、 Humidity ExposureTest lap shear specimens at 71 63C (160 6 5F) after 2 weeks exposure to 100 % relativehumidity and 71 6 3C (160 6 5F). Bring the specimen totemperature as indicated by a thermocouple at the bond areaand stabilize for 10 min just prior to test. Stabilize the chamberused to test the
27、specimens at temperature and humidity for 45min prior to testing. Start the test of each humidity exposuretest specimen no later than 30 min after removing it from thehumidity chamber.6.7 Salt Spray ExposureTest specimens at 27 6 6C (806 10F) after exposure to the salt spray test of MIL-STD-202using
28、 a 20 % NaCl solution at 35 6 3C (95 6 5F). Stabilizethe specimens at the test temperature as indicated by athermocouple at the bond area for 10 min just prior to test.7. Inspection7.1 Qualification InspectionThe inspection requirementsspecified herein are classified as follows:7.1.1 Qualification T
29、estUnless otherwise specified by thepurchaser, adhesives that have not passed the qualificationtests, or that have previously passed the tests but havesubsequently been modified in any manner, must be testedagainst this specification and shown to meet its requirements.7.1.1.1 Instruction SheetA date
30、d, coded, and titled in-struction sheet that outlines instruction for use of the adhesiveon bonding metal facings to foam core and metal componentsshall be supplied by the manufacturer. These instructions shallbe forwarded with the test report when requesting qualification.In addition, a copy of the
31、 instruction sheet shall accompanyeach shipment of the adhesive.7.1.2 Reevaluation ProcedureIn the event that two ormore test results should fall below the minimum specified forany of the qualification tests, the submitted product shall beconsidered to have failed qualification testing. In this case
32、, thelot along with two additional lots may be retested for that test.If all of these pass, the product will be considered as beingqualified.7.2 Quality Conformance Inspection The number of testspecimens for conformance testing shall be five. The testprocedure, cure of the adhesive, and surface prep
33、aration shallbe in accordance with 6.2.8. Keywords8.1 adhesive; foam and beam; 160F/elevated humidityTABLE 1 Physical Property RequirementsTest RequirementRoom temperature, shear 1500 psi, min, 10.4 MPaLow temperature, shear 1500 psi, min, 10.4 MPaHigh temperature, shear 400 psi, min, 2.8 MPaHumidit
34、y exposure, shear, hot 500 psi, min, 3.4 MPaSalt spray exposure, shear, RT 1500 psi, min, 10.4 MPaE1800032ASTM 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 expressly advised tha
35、t 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, either reappro
36、ved 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 attend. If you fe
37、el 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).E1800033
