ASTM D952-10

Standard Test Method for Bond or Cohesive Strength of Sheet Plastics and Electrical Insulating Materials

SIGNIFICANCE AND USE
This test, when applied to laminated plastics, is a measure of the interlaminar or intralaminar strength, whichever is smaller, in a direction normal to the plane of the laminate. When applied to nonlaminated plastics, the test is a measure of the cohesive strength of the material. The property determined is fundamental and has not yet been correlated with the results of any other method for bond strength.
The test may be found to be useful as (1) a research test when studying the effects of changes in independent variables, (2) a specification test, or (3) a referee test.
Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions or testing parameters or combination thereof covered in the relevant ASTM materials specification shall take precedence over those in this test method. If there are no relevant ASTM material specifications then the default conditions apply. Table 1 of Classification System D4000 lists the ASTM materials standards that currently exist.
SCOPE
1.1 This test method covers the determination of the bond strength or ply adhesion strength of sheet plastic and electrical insulating materials. It is applicable to both laminated and nonlaminated thermoplastic and thermosetting materials.
1.2 Test data obtained by this test method is relevant and appropriate for use in engineering design.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
Note 1—There is no known ISO equivalent to this standard.

General Information

• Status: Historical
• Publication Date: 30-Apr-2010
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.10 - Mechanical Properties

Relations

• Replaces: ASTM D952-02 - Standard Test Method for Bond or Cohesive Strength of Sheet Plastics and Electrical Insulating Materials
• Effective Date: 01-May-2010
• Referred By: ASTM D2093-03(2017) - Standard Practice for Preparation of Surfaces of Plastics Prior to Adhesive Bonding
• Effective Date: 01-May-2010
• Referred By: ASTM D710-19 - Standard Specification for Vulcanized Fibre Sheets, Rolls, Rods, and Tubes Used for Electrical Insulation
• Effective Date: 01-May-2010
• Referred By: ASTM F521-22 - Standard Test Methods for Bond Integrity of Transparent Laminates
• Effective Date: 01-May-2010
• Referred By: ASTM D619-21 - Standard Test Methods for Vulcanized Fibre Used for Electrical Insulation
• Effective Date: 01-May-2010

Standards Content (Sample)

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: D952 − 10
StandardTest Method for
Bond or Cohesive Strength of Sheet Plastics and Electrical
1
Insulating Materials
This standard is issued under the fixed designation D952; 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* 3. Terminology
1.1 This test method covers the determination of the bond 3.1 Definitions—For definitions of technical terms pertain-
strength or ply adhesion strength of sheet plastic and electrical ing to plastics used in this test method, see Terminology D883
insulating materials. It is applicable to both laminated and or Terminology D4805.
nonlaminated thermoplastic and thermosetting materials.
4. Significance and Use
1.2 Test data obtained by this test method is relevant and
4.1 This test, when applied to laminated plastics, is a
appropriate for use in engineering design.
measureoftheinterlaminarorintralaminarstrength,whichever
1.3 The values stated in SI units are to be regarded as the
is smaller, in a direction normal to the plane of the laminate.
standard. The values given in parentheses are for information
When applied to nonlaminated plastics, the test is a measure of
only.
the cohesive strength of the material. The property determined
1.4 This standard does not purport to address all of the
is fundamental and has not yet been correlated with the results
safety concerns, if any, associated with its use. It is the
of any other method for bond strength.
responsibility of the user of this standard to establish appro-
4.2 The test may be found to be useful as (1) a research test
priate safety and health practices and determine the applica-
when studying the effects of changes in independent variables,
bility of regulatory limitations prior to use.
(2) a specification test, or (3) a referee test.
NOTE 1—There is no known ISO equivalent to this standard.
4.3 Before proceeding with this test method, reference
shouldbemadetothespecificationofthematerialbeingtested.
2. Referenced Documents
Any test specimen preparation, conditioning, dimensions or
2
2.1 ASTM Standards:
testing parameters or combination thereof covered in the
D618 Practice for Conditioning Plastics for Testing
relevant ASTM materials specification shall take precedence
D883 Terminology Relating to Plastics
over those in this test method. If there are no relevant ASTM
D4000 Classification System for Specifying Plastic Materi-
material specifications then the default conditions apply. Table
als
1 of Classification System D4000 lists the ASTM materials
D4805 Terminology for Plastics Standards (Withdrawn
standards that currently exist.
3
2002)
E691 Practice for Conducting an Interlaboratory Study to
5. Apparatus and Materials
Determine the Precision of a Test Method
5.1 Testing Machine—Any suitable tensile testing machine
2.2 ANSI Standard:
capable of crosshead movement at a constant rate of 1.3
4
B1.1 Standard for Unified Screw Threads
mm/min. (0.05 in/min.) and of sufficient capacity to exceed the
failure load of the material being tested.
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
5.2 Loading Fixtures—The loading fixtures shall be self-
and is the direct responsibility of Subcommittee D20.10 on Mechanical Properties.
aligning and shall not apply eccentric loads.
Current edition approved May 1, 2010. Published June 2010. Originally
approved in 1948. Last previous edition approved in 2002 as D952 – 02.
5.3 Metal Blocks—A pair of 51-mm (2-in.) square metal
DOI:10.1520/D0952-10.
blocks each having a maximum height of 51 mm (2 in.). Each
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
block shall be configured to permit attachment to the testing
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on machine’s loading fixture (see Fig. 1).
the ASTM website.
3
NOTE 2—Blocks constructed from heat-treated aluminum alloy, each
The last approved version of this historical standard is referenced on
7
having a hole in one end tapped ⁄8 in. in accordance with ANSI B1.1, to
www.astm.org.
4 7
Available from American National Standards Institute (ANSI), 25 W. 43rd St., accommodate threaded ⁄8-in. studs of convenient length, have been used
4th Floor, New York, NY 10036, http://www.ansi.org. successfully.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D952 − 10
TABLE 1 Precisi
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D952–02 Designation:D952–10
Standard Test Method for
Bond or Cohesive Strength of Sheet Plastics and Electrical
1
Insulating Materials
This standard is issued under the fixed designation D952; 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*
1.1 This test method covers the determination of the bond strength or ply adhesion strength of sheet plastic and electrical
insulating materials. It is applicable to both laminated and nonlaminated thermoplastic and thermosetting materials.
1.2 Test data obtained by this test method is relevant and appropriate for use in engineering design.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
NOTE 1—There is no known ISO equivalent to this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
D4000 Classification System for Specifying Plastic Materials
D4066Classification System for Nylon Injection and Extrusion Materials (PA)
D4805 Terminology for Plastics Standards
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 ANSI Standard:
3
B1.1 Standard for Unified Screw Threads
3. Terminology
3.1 Definitions—For definitions of technical terms pertaining to plastics used in this test method, see Terminology D883 or
Terminology D4805.
4. Significance and Use
4.1 This test, when applied to laminated plastics, is a measure of the interlaminar or intralaminar strength, whichever is smaller,
in a direction normal to the plane of the laminate. When applied to nonlaminated plastics, the test is a measure of the cohesive
strength of the material. The property determined is fundamental and has not yet been correlated with the results of any other
method for bond strength.
4.2 The test may be found to be useful as (1) a research test when studying the effects of changes in independent variables, (2)
a specification test, or (3) a referee test.
4.3 Before proceeding with this test method, reference should be made to the specification of the material being tested.Any test
specimen preparation, conditioning, dimensions or testing parameters or combination thereof covered in the relevant ASTM
materials specification shall take precedence over those in this test method. If there are no relevantASTM material specifications
then the default conditions apply. Table 1 of Classification System D4000 lists theASTM materials standards that currently exist.
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.10 on Mechanical Properties.
Current edition approved April 10, 2002. Published June 2002. Originally published as D952–48T. Last previous edition D952–95. DOI: 10.1520/D0952-02.
Current edition approved May 1, 2010. Published June 2010. Originally approved in 1948. Last previous edition approved in 2002 as D952 – 02. DOI:10.1520/D0952-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D952–10
TABLE 1 Precision Data
Average Coefficient of Variation
A B
Materials Strength, MPa n Within n Between
r R
(psi) Laboratories Laboratories
BMC 12.7 (1840) 7.1 7.1
SMC 14.0 (2030) 5.4 8.8
A
n is the within-laboratories standard deviation of the mean, expressed as a
r
percentage of the listed average.
B
n is the between-laboratories standard deviation of the mean, expressed as
R
a p
...