ASTM D2141-68(1974)

Method of Test for Adhesion Ratio of Polyethylene Film (Withdrawn 1980)

General Information

• Status: Withdrawn
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Standards Content (Sample)

4~J~ AMERJi:~A~!I?NAL AKSl/ASTM D 2141 - 68 (Reapproved 1974)
Standard Test Method for
1
ADHESION RATIO OF POLYETHYLENE FILM
~~is Standard. i~ issued u~der the fixed designation D 2141 the number immediately following the designation indicates
yefar of origrnal adophon or, rn the case of revision, the year of last revision. A number in parentheses indicates the
year o 1 ast reapproval.
I. Scope ethylene film surface with affinity of the
surface for inks, paints, or other adhesives is
I.I This method covers determination of
also dependent on the absence of undue in­
the ratio of the force required to peel a pres­
terference by additives. The possibility
sure-sensitive adhesive tape from a polyethyl­
should be recognized that a surface might
ene film surface to the force required to peel
show poor tape adhesion due to a layer of
similar tape from an untreated reference
additive but might show good retention of
film surface. Conditions under which adhesion
inks, paints, or adhesives containing a solvent
of the tape to, and separation of the tape
for such layer.
from, the surfaces are to be carried out are
specified.
3. Apparatus
NOTE 1-The values stated in SI units are to be
3.1 Testing Machine-A power-driven test­
regarded as the standard.
machine of the constant-rate-of-crosshead­
movement type.
3.2 Test 1ape-"Po1yken" tape No. 113,
2. Significance
2
black, 12.5 mm Cl2 in.) wide.
2.1 The ability of polyethylene film to re­
3.3 Backing Tape-Backing tape similar to
tain most inks, paints, or adhesives in com­
the test referred to in 3.2 except for width,
mercial use is dependent primarily on the
which shall be at least 25.4 mm {l in.).
character of the polyethylene film surface,
3.4 Rubber - Covered Steel Roller-A steel
which can be modified by one of several
roller 83 ± 3 mm (3.2 ± 0.1 in.) in diam­
surface-treating techniques. It may also be
eter and 44.5 ± l.3 mm (l.75 ± 0.05 in.) in
dependent on the type and amount of addi­
width, covered with rubber approximately
tives present. The force necessary to· peel a
6 mm (0.25 in.) in thickness having a durom­
pressure-sensitive tape from a polyethylene
eter A hardness of 80 ± 5. The weight of the
film surface will, subject to limitations out­
roller proper which applies pressure to the
lined below, correlate well with the degree
test specimen shall be 2.00 ± 0.05 kg (4.5 ±
of adhesion of solids deposited from inks,
0.1 lb. It shall be so constructed that weight of
paints, and adhesives to the polyethylene
the handle is not added to the weight of the
film surface.
roller during use. Figure I illustrates one
2.2 The peel resistance measured in this
construction that accomplishes this.
method is dependent on roll-to-roll variations
in, and on the age of, the test tape. For this
reason, the values obtained are significant
only when related to values obtained with
. 'This method is under the jurisdiction of ASTM Com.
m1ttee D-20 on Plastics and is the direct responsibility of
the same roll of tape on an untreated refer­
Subcommittee D-20.19 on Sheeting.
ence film in the same laboratory on the same
Current edition effective Sept. 9, 1968. Originally· is­
sued 1963. Replaces D 2141 - 63 T.
day.
2
Avail'.lble from the Kendall Co., 309 W. Jackson
2.3 Correlation of the force required to
Bl.vd., Ch1ca_go, Ill. 60606. It is possible that other tapes
remove a pressure-sensitive tape· from a poly- might be sahsfactory, but this has not yet been established.

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D 2141
strip of paper was laid.
4. Test Specimens
6.3 Lay the specimen with the test tape up
4.1 The test specimens shall consist of
on a smooth, level, hard surface, then pass
strips not less than 38 mm (1.5 in.) in width
the roller, without application of additional
and 153 mm (6.0 in.). in length having their
pressure, over the tape lengthwise, once in
edges approximately parallel and free of tears
each direction at the rate approximately 50
or creases. It is recommended that the
mm (2 in.)/s. After the tape has been in
greater dimension of the test specimen be in
contact with the specimen for 30 ± 5 min,
the direction of extrusion.
double back the free end of tape through an
4.2 The specimens shall be representative
angle of 180 deg. Peel 12.5 mm (0.5 in.) of the
of the film under test and shall be taken
tape from the specimen at the doubled end to
from the sheet or tube in a manner repre­
allow a total of 25 mm (I in.) of the specimen
sentative of sound sampling practice. Since
to remain exposed. Clamp this portion of
much commercial film has had only one sur­
the exposed specimen to the lower jaw of the
face treated, it is necessary to identify the sur­
testing machine and place the free end of the
face (or surfaces) being tested.
tape in the upper jaw. The driven jaw shall
4.3 Unless otherwise specified, three spec­
move at a rate of 510 mm (20 in.)/min. In
imens
...