Bonding thermoplastic polymers

Wallow, Thomas I; Hunter, Marion C; Krafcik, Karen Lee; Morales, Alfredo M; Simmons, Blake A; Domeier, Linda A

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Title: Bonding thermoplastic polymers

Abstract

We demonstrate a new method for joining patterned thermoplastic parts into layered structures. The method takes advantage of case-II permeant diffusion to generate dimensionally controlled, activated bonding layers at the surfaces being joined. It is capable of producing bonds characterized by cohesive failure while preserving the fidelity of patterned features in the bonding surfaces. This approach is uniquely suited to production of microfluidic multilayer structures, as it allows the bond-forming interface between plastic parts to be precisely manipulated at micrometer length scales. The bond enhancing procedure is easily integrated in standard process flows and requires no specialized equipment.

Inventors:

Wallow, Thomas I ^[1]; Hunter, Marion C ^[2]; Krafcik, Karen Lee ^[2]; Morales, Alfredo M ^[2]; Simmons, Blake A ^[3]; Domeier, Linda A ^[4]

Fremont, CA
Livermore, CA
San Francisco, CA
Danville, CA

Issue Date:: 2008-06-24

Research Org.:: Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 941142

Patent Number(s):: 7390377

Application Number:: 11/234,607

Assignee:: Sandia Corporation (Livermore, CA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

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B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C65/02 - by heating, with or without pressure
B29C65/4815 - {Hot melt adhesives, e.g. thermoplastic adhesives}
B29C65/482 - {Drying adhesives, e.g. solvent based adhesives}
B29C65/4825 - {Pressure sensitive adhesives}
B29C65/4835 - {Heat curing adhesives}
B29C65/4845 - {Radiation curing adhesives, e.g. UV light curing adhesives}
B29C65/5042 - {covering both elements to be joined}
B29C65/523 - {by dipping}
B29C66/1122 - {Single lap to lap joints, i.e. overlap joints
B29C66/324 - {Avoiding burr formation}
B29C66/53461 - {joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies}
B29C66/71 - {characterised by the composition of the plastics material of the parts to be joined
B29C66/73921 - {characterised by the materials of both parts being thermoplastics}
B29C66/83221 - {cooperating reciprocating tools, each tool reciprocating along one axis}
B29C66/954 - {by measuring or controlling the thickness of the parts to be joined}
B29C66/9592 - {in explicit relation to another variable, e.g. X-Y diagrams}

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
B29K2023/38 - {Polymers of cycloalkenes, e.g. norbornene or cyclopentene}

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
B29L2031/756 - {Microarticles, nanoarticles}

B - PERFORMING OPERATIONS B81 - MICROSTRUCTURAL TECHNOLOGY B81B - MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
B81B2201/058 - Microfluidics not provided for in B81B2201/051 - B81B2201/054

B - PERFORMING OPERATIONS B81 - MICROSTRUCTURAL TECHNOLOGY B81C - PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
B81C3/001 - {Bonding of two components}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C08J5/121 - {by heating}
C08J5/122 - {using low molecular chemically inert solvents, swelling or softening agents}

C - CHEMISTRY C09 - DYES C09J - ADHESIVES
C09J2400/226 - in the substrate
C09J5/02 - involving pretreatment of the surfaces to be joined

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DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Wallow, Thomas I, Hunter, Marion C, Krafcik, Karen Lee, Morales, Alfredo M, Simmons, Blake A, and Domeier, Linda A. Bonding thermoplastic polymers.  United States: N. p., 2008. 
        Web.

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                    Wallow, Thomas I, Hunter, Marion C, Krafcik, Karen Lee, Morales, Alfredo M, Simmons, Blake A, & Domeier, Linda A. Bonding thermoplastic polymers.  United States.

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                    Wallow, Thomas I, Hunter, Marion C, Krafcik, Karen Lee, Morales, Alfredo M, Simmons, Blake A, and Domeier, Linda A. Tue .  
        "Bonding thermoplastic polymers".  United States.  https://www.osti.gov/servlets/purl/941142.

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@article{osti_941142,

  title        = {Bonding thermoplastic polymers},

  author       = {Wallow, Thomas I and Hunter, Marion C and Krafcik, Karen Lee and Morales, Alfredo M and Simmons, Blake A and Domeier, Linda A},

  abstractNote = {We demonstrate a new method for joining patterned thermoplastic parts into layered structures. The method takes advantage of case-II permeant diffusion to generate dimensionally controlled, activated bonding layers at the surfaces being joined. It is capable of producing bonds characterized by cohesive failure while preserving the fidelity of patterned features in the bonding surfaces. This approach is uniquely suited to production of microfluidic multilayer structures, as it allows the bond-forming interface between plastic parts to be precisely manipulated at micrometer length scales. The bond enhancing procedure is easily integrated in standard process flows and requires no specialized equipment.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2008},

  month        = {6}

}

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Works referenced in this record:

A mechanistic model of case II diffusion of a diluent into a glassy polymer
journal, December 1999

Argon, A. S.; Cohen, R. E.; Patel, A. C.
Polymer, Vol. 40, Issue 25
https://doi.org/10.1016/S0032-3861(99)00033-6

Diffusion mechanics of the system PMMA-methanol
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Thomas, N. L.; Windle, A. H.
Polymer, Vol. 22, Issue 5
https://doi.org/10.1016/0032-3861(81)90352-9

Case II Sorption
book, January 1985

Windle, A. H.
Polymer Permeability
https://doi.org/10.1007/978-94-009-4858-7_3

Non-fickian diffusion in thin polymer films
journal, April 1996

Edwards, D. A.
Journal of Polymer Science Part B: Polymer Physics, Vol. 34, Issue 5, p. 981-997
URL: 10.1002/(SICI)1099-0488(19960415)34:5<981::AID-POLB16>3.0.CO;2-7

Chemical structure and physical properties of cyclic olefin copolymers (IUPAC Technical Report)
journal, January 2005

Shin, Ju Young; Park, Ji Yong; Liu, Chenyang
Pure and Applied Chemistry, Vol. 77, Issue 5
https://doi.org/10.1351/pac200577050801

Diffusion of alcohols and relaxation in poly(methyl methacrylate): effect of thermal history
journal, September 1983

Sarti, G. C.; Gostoli, C.; Masoni, S.
Journal of Membrane Science, Vol. 15, Issue 2
https://doi.org/10.1016/S0376-7388(00)80397-X

Case II diffusion: effect of solvent molecule size
journal, August 1990

P. Gall, Thomas; Lasky, Ronald C.; Kramer, Edward J.
Polymer, Vol. 31, Issue 8
https://doi.org/10.1016/0032-3861(90)90156-S

A theory of case II diffusion
journal, April 1982

Thomas, N. L.; Windle, A. H.
Polymer, Vol. 23, Issue 4
https://doi.org/10.1016/0032-3861(82)90093-3

Temperature dependence of case II diffusion
journal, June 1988

Lasky, R.; Kramer, E.; Hui, C.
Polymer, Vol. 29, Issue 6
https://doi.org/10.1016/0032-3861(88)90028-6

Chemically Driven Deformation of Polymers
journal, March 1989

Hui, C. -Y.; Wu, K. -C.; Lasky, Ronald C.
Journal of Electronic Packaging, Vol. 111, Issue 1
https://doi.org/10.1115/1.3226511

Interfacial Events Associated with Case II Diffusion in the Poly(Methylmethacrylate)/CH ₃ OH System
journal, August 1996

Drake, Phillip A.; Bohn, Paul W.
Applied Spectroscopy, Vol. 50, Issue 8
https://doi.org/10.1366/0003702963905277

Case‐II diffusion in polymers. II. Steady‐state front motion
journal, June 1987

Hui, C. ‐Y.; Wu, K. ‐C.; Lasky, Ronald C.
Journal of Applied Physics, Vol. 61, Issue 11
https://doi.org/10.1063/1.338288

Non-Fickian mass transport in polymers
journal, May 2002

El Afif, A.; Grmela, M.
Journal of Rheology, Vol. 46, Issue 3
https://doi.org/10.1122/1.1470520

Case‐II diffusion in polymers. I. Transient swelling
journal, June 1987

Hui, C. ‐Y.; Wu, K. ‐C.; Lasky, Ronald C.
Journal of Applied Physics, Vol. 61, Issue 11
https://doi.org/10.1063/1.338287

The initial stages of Case II diffusion at low penetrant activities
journal, April 1988

Lasky, Ronald C.; Kramer, Edward J.; Hui, C. -Y.
Polymer, Vol. 29, Issue 4
https://doi.org/10.1016/0032-3861(88)90083-3

Transport of methanol in poly(methyl methacrylate)
journal, March 1978

Thomas, Noreen; Windle, A. H.
Polymer, Vol. 19, Issue 3
https://doi.org/10.1016/0032-3861(78)90218-5

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Similar Records

Title: Bonding thermoplastic polymers

Abstract

Citation Formats

A mechanistic model of case II diffusion of a diluent into a glassy polymer journal, December 1999

Diffusion mechanics of the system PMMA-methanol journal, May 1981

Case II Sorption book, January 1985

Non-fickian diffusion in thin polymer films journal, April 1996

Chemical structure and physical properties of cyclic olefin copolymers (IUPAC Technical Report) journal, January 2005

Diffusion of alcohols and relaxation in poly(methyl methacrylate): effect of thermal history journal, September 1983

Case II diffusion: effect of solvent molecule size journal, August 1990

A theory of case II diffusion journal, April 1982

Temperature dependence of case II diffusion journal, June 1988

Chemically Driven Deformation of Polymers journal, March 1989

Interfacial Events Associated with Case II Diffusion in the Poly(Methylmethacrylate)/CH 3 OH System journal, August 1996

Case‐II diffusion in polymers. II. Steady‐state front motion journal, June 1987

Non-Fickian mass transport in polymers journal, May 2002

Case‐II diffusion in polymers. I. Transient swelling journal, June 1987

The initial stages of Case II diffusion at low penetrant activities journal, April 1988

Transport of methanol in poly(methyl methacrylate) journal, March 1978

A mechanistic model of case II diffusion of a diluent into a glassy polymer
journal, December 1999

Diffusion mechanics of the system PMMA-methanol
journal, May 1981

Case II Sorption
book, January 1985

Non-fickian diffusion in thin polymer films
journal, April 1996

Chemical structure and physical properties of cyclic olefin copolymers (IUPAC Technical Report)
journal, January 2005

Diffusion of alcohols and relaxation in poly(methyl methacrylate): effect of thermal history
journal, September 1983

Case II diffusion: effect of solvent molecule size
journal, August 1990

A theory of case II diffusion
journal, April 1982

Temperature dependence of case II diffusion
journal, June 1988

Chemically Driven Deformation of Polymers
journal, March 1989

Interfacial Events Associated with Case II Diffusion in the Poly(Methylmethacrylate)/CH ₃ OH System
journal, August 1996

Case‐II diffusion in polymers. II. Steady‐state front motion
journal, June 1987

Non-Fickian mass transport in polymers
journal, May 2002

Case‐II diffusion in polymers. I. Transient swelling
journal, June 1987

The initial stages of Case II diffusion at low penetrant activities
journal, April 1988

Transport of methanol in poly(methyl methacrylate)
journal, March 1978