Standard Test Method for Strength Properties of Adhesives in Cleavage Peel by Tension Loading (Engineering Plastics-to-Engineering Plastics)

SIGNIFICANCE AND USE
This test method determines strength properties of adhesives in cleavage peel by tension loading. It allows the comparative testing of cleavage/peel strengths of bonded engineering thermoplastic adherends.
Cleavage/peel forces are common in bonded assemblies. This test method gives information as to the performance of substrate/adhesive combinations under cleavage/peel forces.
SCOPE
1.1 This test method covers the determination of the comparative cleavage/peel strengths of adhesives for bonding engineering plastics when tested on a standard specimen and under specific conditions of preparation and testing.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Publication Date
30-Apr-2012
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ASTM D3807-98(2012) - Standard Test Method for Strength Properties of Adhesives in Cleavage Peel by Tension Loading (Engineering Plastics-to-Engineering Plastics)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3807 − 98 (Reapproved 2012)
Standard Test Method for
Strength Properties of Adhesives in Cleavage Peel by
Tension Loading (Engineering Plastics-to-Engineering
Plastics)
This standard is issued under the fixed designation D3807; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope comparative testing of cleavage/peel strengths of bonded
engineering thermoplastic adherends.
1.1 This test method covers the determination of the com-
parative cleavage/peel strengths of adhesives for bonding 4.2 Cleavage/peelforcesarecommoninbondedassemblies.
engineering plastics when tested on a standard specimen and This test method gives information as to the performance of
under specific conditions of preparation and testing. substrate/adhesive combinations under cleavage/peel forces.
1.2 The values stated in SI units are to be regarded as the
5. Apparatus
standard. The values given in parentheses are for information
5.1 Tension Testing Machine, capable of applying a tensile
only.
load having the following prescribed conditions:
1.3 This standard does not purport to address all of the
5.1.1 Select the machine and loading range so that the
safety concerns, if any, associated with its use. It is the
maximum load on the specimen falls between 15 and 85 % of
responsibility of the user of this standard to establish appro-
the upper limit of the loading range.
priate safety and health practices and determine the applica-
5.1.2 Maintain the rate of movement between heads to be
bility of regulatory limitations prior to use.
essentially constant under fluctuating loads.
2. Referenced Documents
NOTE 1—It is difficult to meet this requirement when loads are
measured with a spring-type or pendulum-type weighing device. Gear-
2.1 ASTM Standards:
driven head separation is recommended.
D907 Terminology of Adhesives
5.1.3 Equip the machine with suitable grips capable of
clamping the specimens firmly throughout the tests.
3. Terminology
5.1.4 The machine is autographic, giving a chart that can be
3.1 Definitions—Many of the terms used in this test method
read in terms of centimetres (inches) of separation as one
are defined in Terminology D907.
coordinate and applied load as the other coordinate.
3.2 Definitions of Terms Specific to This Standard:
5.1.5 The applied tension as measured and recorded is to be
3.2.1 semirigid adherend, n—an adherend that has dimen-
accurate within 61%.
sions and physical properties that permit bending at designated
5.2 Conditioning Room or Desiccators, capable of main-
test temperature through any angle up to 30° without breaking
taining a relative humidity of 50 6 5 % at 23 6 2°C.
or cracking.
6. Test Specimen
4. Significance and Use
6.1 Laminated test panels (see Fig. 1) consist of two
4.1 This test method determines strength properties of
semirigid adherends properly prepared and bonded together in
adhesives in cleavage peel by tension loading. It allows the
accordance with the manufacturer’s recommendations. Spe-
cially prepared test specimens shall be 25.4 mm (1 in.) wide by
1 177.3 mm (7 in.) long, but bonded only over approximately 76
This test method is under the jurisdiction of ASTM Committee D14 on
AdhesivesandisthedirectresponsibilityofSubcommitteeD14.40onAdhesivesfor mm (3 in.) of their length. Test specimens of these same
Plastics.
dimensionsmayalsobecutfromlarger,fullylaminatedpanels.
Current edition approved May 1, 2012. Published May 2012. Originally
6.1.1 Direct comparisons of different adhesives are made
approved in 1979. Last previous edition approved in 2004 as D3807 – 98 (2004).
only when specimen construction and test conditions are
DOI: 10.1520/D3807-98R12.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
identical.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on NOTE 2—General purpose ABS (acrylonitrile-butadiene-styrene)
the ASTM website. molded plaques approximately 6.3 mm (0.25 in.) thick have been found
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3807 − 98 (2012)
FIG. 1 Cleavage Peel Test Specimen
satisfactory as adherends for structural adhesives. Other engineering
manufacturer may specify such an aging period to be unnec-
plastics and metals have been found satisfactory for specific adhesives.
essary or a shorter period to be adequate.
NOTE 3—The adherend substrate selected must exhibit sufficient
toughness and stiffness to resist substrate failure, thus forcing the adhesive
8. Procedure
layer to absorb the stresses of the testing process. Should the substrate fail
cohesively, the ultimate cleavage/peel strength of the adhesive under test
8.1 Clamp the connecting wires from the specimen (Fig. 1)
has not been determined.
in the test grips of the tension-testing machine.Apply the load
6.2 Cut the bonded panels into 25-mm (1-in.) wide test at a constant crosshead speed of 12.7 mm (0.5 in.)/min.
specimens by a means that is not deleterious to the bond. A
8.2 During the cleavage/peel test make an autographic
suggest
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