Zobrazeno 1 - 10
of 150
pro vyhledávání: '"John K. Gillham"'
Autor:
Armand F. Lewis, John K. Gillham
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 6:125-136
The application of the torsional braid technique to the thermal analysis of polymers (and monomers) is demonstrated. Included in this work are details of a visual method for estimating the dynamic mechanical damping factor of a freely oscillating sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b1e20fb6ff0de18137ee2274b542c1f
https://doi.org/10.1002/polc.5070060115
https://doi.org/10.1002/polc.5070060115
Autor:
John K. Gillham, Jong Keun Lee
Publikováno v:
Journal of Applied Polymer Science. 90:2665-2675
Isothermal physical ageing below the glass-transition temperature (Tg) of a high-Tg thermosetting difunctional epoxy/tetrafunctional aromatic amine system was investigated at different ageing temperatures (Ta) and chemical conversions (monitored by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa1b4aea7cb1bd5280a59f0d63ff25c2
https://doi.org/10.1002/app.12915
https://doi.org/10.1002/app.12915
Publikováno v:
Journal of Applied Polymer Science. 81:396-404
The erasure below the glass-transition temperature (Tg) of the effect of isothermal physical aging (at aging temperature Ta) in a fully cured epoxy/amine thermosetting system is investigated using the torsional braid analysis (TBA) dynamic mechanical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1df99d66779ef059a8c4828c5fcc5043
https://doi.org/10.1002/app.1451
https://doi.org/10.1002/app.1451
Autor:
John K. Gillham
Publikováno v:
Polymer International. 44:262-276
Generalizations on the cure and properties of thermosetting polymers, which have stemmed from the development and application of the torsional braid analysis (TBA) technique, have been formulated in terms of cure–property relationships. They are th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa0178bb531cd730f5114b67c49c1934
https://doi.org/10.1002/(sici)1097-0126(199711)44:3<262::aid-pi863>3.0.co
https://doi.org/10.1002/(sici)1097-0126(199711)44:3<262::aid-pi863>3.0.co
Autor:
Shellee L. Maddox, John K. Gillham
Publikováno v:
Journal of Applied Polymer Science. 64:55-67
The rate and effects of isothermal physical aging of a fully cured epoxyamine/ glass fiber composite specimen were studied for a wide range of isothermal aging temperatures (-180 to 200°C) using a freely oscillating torsion pendulum technique: torsi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861c31c0fc586fb9d2a31ac0996c9411
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<55::aid-app5>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<55::aid-app5>3.0.co
Autor:
Richard A. Venditti, John K. Gillham
Publikováno v:
Journal of Applied Polymer Science. 64:3-14
An equation, based on thermodynamic considerations to relate the glass transition temperature, T g , to compositional variation of a polymer system, is adapted in this article for modeling the T g vs. fractional conversion (x) relationship of reactiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98da6f16e4f8ab9809abb63e9c395daf
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<3::aid-app1>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<3::aid-app1>3.0.co
Publikováno v:
Journal of Applied Polymer Science. 64:27-38
A methodology is reported for monitoring the evolution of isothermal physical properties of thermosetting systems with increasing conversion (cure). For this report, measurements of modulus vs. temperature of a single composite specimen were obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77c75c000fb5049fad525156ccd25689
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<27::aid-app3>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<27::aid-app3>3.0.co
Publikováno v:
Journal of Applied Polymer Science. 64:15-25
The present article describes a methodology for examining the evolution of the properties vs. cure of a complex thermosetting isocyanate/epoxy reactive mixture which reacts through two consecutive but separable reaction regimes. The methodology is ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b673a958ab2c816bfc9d617a721e3601
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<15::aid-app2>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<15::aid-app2>3.0.co
Autor:
John K. Gillham, Amy S. Vallely
Publikováno v:
Journal of Applied Polymer Science. 64:39-53
A single specimen of an epoxy/amine thermoset-glass fiber composite was examined, using a freely oscillating torsion pendulum operating at ∼ 1 Hz, for different conversions (as measured by T g ) from T g0 = 0°C to T gx = 184°C during cooling and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cba10886c9465afc2bc703c34e09075
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<39::aid-app4>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19970404)64:1<39::aid-app4>3.0.co
Autor:
Richard A. Venditti, John K. Gillham
Publikováno v:
Journal of Applied Polymer Science. 56:1687-1705
Isothermal properties of thermosetting materials after cure, such as density and modulus, pass through maximum and minimum values with increasing chemical conversion. In this report observed decreases in modulus and density at isothermal temperatures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::886b4ddcb67508ad34ba1b0239930f90
https://doi.org/10.1002/app.1995.070561301
https://doi.org/10.1002/app.1995.070561301