EP2519565A1 - Assemblage de deux substrats colles par un polymere rigide, procedes de montage et de demontage par migration de cet assemblage colle - Google Patents
Assemblage de deux substrats colles par un polymere rigide, procedes de montage et de demontage par migration de cet assemblage colleInfo
- Publication number
- EP2519565A1 EP2519565A1 EP10812873A EP10812873A EP2519565A1 EP 2519565 A1 EP2519565 A1 EP 2519565A1 EP 10812873 A EP10812873 A EP 10812873A EP 10812873 A EP10812873 A EP 10812873A EP 2519565 A1 EP2519565 A1 EP 2519565A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly
- seal
- substrates
- substrate
- bonded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/50—Additional features of adhesives in the form of films or foils characterized by process specific features
- C09J2301/502—Additional features of adhesives in the form of films or foils characterized by process specific features process for debonding adherents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2463/00—Presence of epoxy resin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
- Y10T156/1153—Temperature change for delamination [e.g., heating during delaminating, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31511—Of epoxy ether
- Y10T428/31515—As intermediate layer
- Y10T428/31522—Next to metal
Definitions
- the present invention relates to an assembly of two bonded substrates, as well as the composition for bonding this assembly.
- the invention also covers a method of mounting this assembly by gluing and a dismounting process of this assembly bonded by migration and creation of an interfacial detachment.
- the substrates thus bonded give complete satisfaction in the resulting assembly.
- bonding bonds are made by preparing the surfaces to bond by bonding so that they have a suitable surface condition.
- the seal is disposed on at least one of the faces, the substrates are positioned under pressure and the hardening of the adhesive is achieved by heating, by emission of radiation or by an associated catalyst to give examples.
- the hardening of the glue can also occur under the effect of humidity or at room temperature. In any case, the substrates are thus joined together.
- the substrate preserved intact has a surface state that prohibits a new connection by gluing or generates at least a major work surface treatment.
- One solution consists in providing a controlled reversibility of bonded bonds with three means for implementing this reversibility, by chemical, physico-chemical or physical means.
- the chemical route uses joints with polymeric bases whose structure can be modified or destroyed by external actions such as heat, radiation or electromagnetic fields.
- thermoplastic resins thermosetting resins known for their mechanical performance.
- Thermoplastics having the capacity to lose a large part of their properties under the effect of heat, the connection by a joint comprising a combination of a thermosetting and a thermoplastic may be removable by destruction of the joint in its mass . In this case, disassembly is possible but the two substrates generally bear part of this degraded seal and it is necessary at least to remove the remaining portion of the seal on the substrate to be reused.
- thermosets are weakened by the presence of the thermoplastic and this especially as the substrates work in temperature, even while staying away from the degradation temperature ranges.
- the physical route is to introduce into the adhesive composition itself, also known for its adhesive capacity, additives capable, under external stimulation, often heat, to destroy the cohesion of the joint in its mass.
- microspheres can be used in adhesion primers, in the case of automotive glazing, for example. After activation and expansion of the microcapsules within the primary, it has lost all its cohesion and disassembly is possible. However, the substrates carrying the primer are soiled and must be reprocessed in order to be re-glued.
- EP-1,814,935 describes a method of assembling substrates by bonding with a polymer matrix comprising a migrating agent, as well as a method of dismounting the assembly. bonding, which is to provide energy to the migrating agent so as to cause its migration to at least one of the polymer matrix / substrate interfaces to generate a weak cohesion layer and separate the elements.
- Migratory agents such as pTSH, melt and migrate to the interface and then decompose to induce interfacial detachment.
- Such a disassembly process allows the disassembly without degrading one or the other of the substrates and makes it possible to separate the two substrates by obtaining a surface without adhesive residue of at least one of the substrates, possibly ready to be assembled again. to a new substrate.
- the generated gases do not migrate in the same way and the concentration of gas at the joint / substrate interface is not always sufficient to allow delamination.
- the objective of the invention is to overcome these disadvantages and to propose a particular composition that allows the assembly of two substrates by gluing, assembly which is always removable by a specific method.
- the invention is directed to a composition intended to serve as a seal for bonding two substrates, then peelable by heating in the mass, consisting of a polymeric material having a tensile Young's modulus value at 25 ° C between 500 MPa and 5 GPa and comprising at least one migrating agent capable of migrating to at least one of the interfaces of the joint to generate an interfacial detachment.
- interfacial detachment is meant the separation of assembled surfaces at the glued interfaces.
- heating in the mass within the meaning of the invention means any heating process for heating the entire adhesive joint, for example oven or water bath, but also induction or microwave (in the case of adhesives sensitive to these heating techniques).
- the invention also covers the removable assembly by heating in the mass obtained with the aid of this composition, as well as a mounting method and a particular method of disassembly of this assembly which necessarily allows the two substrates to take off.
- FIGS. 1A to 1C schematically represent an assembly such as it is present during the contacting, during the supply of heat for migration and during disassembly.
- the invention provides an assembly 20, dismountable by heating in the mass, comprising a first substrate 10 and a second substrate 12 bonded with at least one gasket 14 as shown in FIG. 1A.
- the seal 14 is made of polymeric material having a tensile Young's modulus value at 25 ° C between 500 MPa and 5 GPa, i.e. a rigid polymeric material, and comprising at least one migrating agent capable of migrate to at least one of the interfaces of the joint 14 to generate interfacial detachment under the effect of heat.
- it is a polymeric material having a tensile Young's modulus value at 25 ° C between 1 GPa and 5 GPa.
- the seal 14 may be a known type of resin-based adhesive having a tensile Young's modulus value at 25 ° C between 500 MPa and 5 GPa such as acrylic or epoxy resin.
- an adhesion primer that is to say a layer of the same type as the polymer used for the adhesive (having a value of Young's modulus tensile to 25 ° C between 500 MPa and 5 GPa), applied before the adhesive and whose thickness is a few tens of microns. It may be for example paints or coatings.
- first substrate 10 and the second substrate 12 with the seal 14 defines two interfaces, one between this seal and the first substrate and the other between this seal and the second substrate.
- the assembly 20 comprises several seals, for example two different adhesives or an adhesive and a primer.
- two seals for example two different adhesives or an adhesive and a primer.
- An interface between two joints or between a joint and a substrate is considered equivalent.
- At least one of the seals includes at least one compound capable of migrating into the seam matrix to generate interfacial delamination at at least one of the interfaces of said seam with one of the substrates or with another seam.
- a second aspect of the invention relates to the composition intended to serve as a seal 14 for the assembly 20.
- This composition comprises:
- At least one migrating agent at least one migrating agent.
- polymer base is meant the binder or skeleton constituting the adhesive.
- thermosetting resins in particular epoxy matrices and acrylate matrices. These matrices, once polymerized, are rigid.
- migrating agent at least one molecule, which once activated, is able to migrate to at least one of the interfaces of the joint 14 to generate an interfacial detachment under the action of heat.
- the migrating agent is an agent which, subjected to a certain heat, decomposes and generates gases that migrate in the volume of the seal 14 to at least one interface to produce stresses and induce a detachment.
- the migrating agent may be chosen from chemical blowing agents.
- the migrating agent is a polycarboxylic acid or azodicarbonamide.
- the migrating agent is present between 5 and 50% by weight of the polymer base, more preferably between 5 and 30%. This proportion is particularly suitable for detachment of rigid substrates consisting of a polymeric material having a tensile Young's modulus value at 25 ° C between 500 MPa and 5 GPa.
- This composition can serve as a seal 14 for making an assembly 20 by carrying out the following steps:
- the assembly 20 thus obtained can be dismounted by the implementation of a method comprising the following steps:
- the step of heating in the mass can be carried out under a controlled thermal input as in an oven for example.
- the temperature for takeoff is preferably chosen between 150 and 220 ° C.
- the choice of the particular polymer base according to the invention with a high value of modulus of elasticity allows the gases generated under the effect of heat to migrate in the volume of the seal towards the interface so that there is sufficient gas concentration at the interface to allow delamination.
- Disassembly or takeoff is schematically shown in Figures 1B and 1C.
- the interfacial detachment is generated in FIG. 1B by the supply of heat and the two substrates are separated from each other in FIG. 1C, the seal being able to remain on one of the two substrates.
- Example 1 The invention can be illustrated by two nonlimiting examples of assembly.
- Example 1 The invention can be illustrated by two nonlimiting examples of assembly.
- the aluminum substrates are degreased with methyl ethyl ketone, brushed and then degreased again.
- the crosslinking of the adhesive is carried out in one hour at 65 ° C.
- the seal has a thickness of 120 microns.
- This test is based on ISO 4587.
- the assemblies are activated by heating and tensile shear tests are carried out.
- the aluminum substrates are degreased with methyl ethyl ketone, brushed and then degreased again.
- the crosslinking of the adhesive is carried out in one hour at 65 ° C.
- the seal has a thickness of 120 microns.
- This test is based on ISO 4587.
- the assemblies are activated by heating and tensile shear tests are carried out.
- the activated test pieces all have adhesive failure facies, i.e., the substrates are free of adhesive residues.
- the substrates are free of adhesive residues.
- this allows the reuse of the substrates, which is not the case with a standard glue.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sealing Material Composition (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0959641A FR2954776B1 (fr) | 2009-12-29 | 2009-12-29 | Assemblage de deux substrats colles par un polymere rigide, procedes de montage et de demontage par migration de cet assemblage colle |
PCT/FR2010/052916 WO2011080477A1 (fr) | 2009-12-29 | 2010-12-24 | Assemblage de deux substrats colles par un polymere rigide, procedes de montage et de demontage par migration de cet assemblage colle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2519565A1 true EP2519565A1 (fr) | 2012-11-07 |
Family
ID=42246270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10812873A Withdrawn EP2519565A1 (fr) | 2009-12-29 | 2010-12-24 | Assemblage de deux substrats colles par un polymere rigide, procedes de montage et de demontage par migration de cet assemblage colle |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120258315A1 (fr) |
EP (1) | EP2519565A1 (fr) |
FR (1) | FR2954776B1 (fr) |
WO (1) | WO2011080477A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5995089B2 (ja) * | 2012-05-31 | 2016-09-21 | パナソニックIpマネジメント株式会社 | シリコンウェハ剥離方法、およびシリコンウェハ剥離装置 |
US9924897B1 (en) * | 2014-06-12 | 2018-03-27 | Masimo Corporation | Heated reprocessing of physiological sensors |
FR3055887B1 (fr) | 2016-09-14 | 2019-06-21 | Airbus Safran Launchers Sas | Dispositif de liaison a separation commandee par effet thermique non pyrotechnique a temps de reaction reduit |
CN112004670A (zh) * | 2018-04-25 | 2020-11-27 | 日东电工株式会社 | 玻璃膜-树脂复合体 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9912694D0 (en) | 1999-06-02 | 1999-08-04 | Bain Peter S | Adhesive |
JP2003041208A (ja) * | 2001-07-30 | 2003-02-13 | Hitachi Chem Co Ltd | 接着シートならびに半導体装置およびその製造方法 |
AU2003288362A1 (en) * | 2003-09-19 | 2005-04-11 | Rescoll | Destructuring agent for an adhesive composition, and glue and primer forming said composition |
FR2877349B1 (fr) | 2004-11-04 | 2007-04-27 | Rescoll Sarl Soc | Procede d'assemblage de deux substrats par collage, procede de demontage de cet assemblage colle par migration |
FR2929951B1 (fr) * | 2008-04-15 | 2011-03-11 | Rescoll Soc | Composition stable destinee a l'assemblage demontable de substrats par collage. |
-
2009
- 2009-12-29 FR FR0959641A patent/FR2954776B1/fr not_active Expired - Fee Related
-
2010
- 2010-12-24 WO PCT/FR2010/052916 patent/WO2011080477A1/fr active Application Filing
- 2010-12-24 EP EP10812873A patent/EP2519565A1/fr not_active Withdrawn
- 2010-12-24 US US13/517,311 patent/US20120258315A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
ANONYMOUS: "Polymer properties", 1 January 2008 (2008-01-01), pages 1 - 1, XP055420523, ISBN: 978-0-13-227271-1, Retrieved from the Internet <URL:http://studylib.net/doc/18910035/polymer-properties#> [retrieved on 20171031] * |
Also Published As
Publication number | Publication date |
---|---|
FR2954776B1 (fr) | 2013-03-08 |
WO2011080477A1 (fr) | 2011-07-07 |
US20120258315A1 (en) | 2012-10-11 |
FR2954776A1 (fr) | 2011-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1989013B1 (fr) | Joints d'etancheite multicouches graphite souple/metal adaptes a des conditions de service a haute temperature | |
EP1814935B1 (fr) | Procede d'assemblage de deux substrats par collage, procede de demontage de cet assemblage colle par migration | |
EP2475487B1 (fr) | Procede d'assemblage de pieces en materiaux a base de sic par brasage non-reactif comprenant du silicium et du neodyme ; composition de brasure avec de tels elements | |
EP2519565A1 (fr) | Assemblage de deux substrats colles par un polymere rigide, procedes de montage et de demontage par migration de cet assemblage colle | |
WO2011113759A1 (fr) | Procede d'assemblage de pieces en materiaux a base de sic par brasage non-reactif, compositions de brasure, et joint et assemblage obtenus par ce procede | |
WO2021028457A1 (fr) | Compositions demontables par activation thermique, utilisations et assemblages comprenant de telles compositions | |
CA2760015A1 (fr) | Procede d'assemblage par soudage de pieces en alliage d'aluminium avec deformation a froid suivi d'un revenu post soudage de l'ensemble de la zone soudee | |
EP3433215B1 (fr) | Procede de fabrication de matelas de laine minerale autoadhesifs | |
EP1611217B1 (fr) | Procede d' assemblage de deux substrats par collage, procede de demontage de cet assemblage colle et primaire utilise | |
EP2519596B1 (fr) | Assemblage de deux substrats colles par un polymere souple, procedes de montage et de demontage par migration de cet assemblage colle | |
US8622694B2 (en) | Methods and systems for removably securing reusable parts to replaceable parts | |
EP2981405B1 (fr) | Liaison entre un liner métallique mince et une paroi en composite par enduction chargée de particules thermoplastiques | |
FR3074178A1 (fr) | Composition latente d'adhesif structural activable par la chaleur et son procede de fabrication | |
EP3947157B1 (fr) | Procédé d'assemblage d'une pluralité d'équipements sur une structure de satellite et structure de satellite portant une pluralité d'équipements | |
EP2408871B1 (fr) | Procede de collage demontable adapte aux materiaux poreux | |
WO2015145075A1 (fr) | Matériau composite de revêtement de surface | |
EP1273357B1 (fr) | Procédé de mise en peinture de pièce de carrosserie | |
FR2822159A1 (fr) | Adhesif composites en bande et procede de depot d'un tel adhesif | |
EP3259487B1 (fr) | Disque de friction comprenant une garniture de friction collee a l'etat reticule | |
WO2023135497A1 (fr) | Matériaux multicouches autoréparables | |
WO2002012590A1 (fr) | Composite beryllium-aluminium a surface microporeuse pour impregnation, peinture ou collage | |
CH716895A2 (fr) | Composition pour protection temporaire et méthode associée. | |
FR3092583A1 (fr) | Assemblage de joint autoadhésif et procédé de fabrication d’un tel assemblage | |
WO2015092285A1 (fr) | Procede d'assemblage de pieces dont les faces a assembler sont en carbure de silicium, joint de brasage obtenu par ledit procede, composition de brasure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120626 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C08J 5/08 20060101ALI20161110BHEP Ipc: C09J 5/06 20060101AFI20161110BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20161221 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20180320 |