Results 251 to 260 of about 24,379 (307)

Microwave-cured tracheostoma vents

The Journal of Prosthetic Dentistry, 1992
This article describes a technique of making custom flexible and combined flexible/rigid tracheostoma vents. The combined flexible rigid tracheostoma vent provides a flexible material that is nonirritating in the peristomial region and maintains a patent tracheostoma by the rigidity of the hard acrylic resin section.
R E, McKinstry, I, Zini, Q C, Beery
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Microwave Curing of Composites

Journal of Composite Materials, 1984
A model was developed which describes the microwave curing process of continuous fiber reinforced organic matrix composites. On the basis of the model, a computer code was developed which provides the temperature distribution, the resin viscosity, the degree of cure of the resin, and the resin contents of the composite and the bleeder during microwave
null Woo Il Lee, George S. Springer
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Epoxy nanocomposites curing by microwaves

Polymer Engineering & Science, 2006
Abstract In this work, chemically modified sodium montmorillonite and epoxy monomer were used to prepare nanocomposites in two consecutive stages. In the first stage, dodecylamine, octadecylamine, hexadecylamine, and hexadecyltrimethyl ammonium bromide were used to prepare various organophilic clays. In the second stage, the bisphenol‐
Nurseli Uyanık, A. Rıza Erdem, M. Fatih Can, Mehmet Sabri Çelik   +3 more
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Microwave curing technique in concrete manufacture

Cement and Concrete Research, 1987
Abstract By using microwave desiccation, a new kind of curing technique of concrete was developed. Comparing with traditional thermal technique, the main features of which were that the curing period was much shorter and the quality of concrete was better.
null Wu Xuequan, null Dong Jianbgo, null Tang Mingshu   +2 more
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Microwave curing cement-fly ash blended paste

Construction and Building Materials, 2021
Abstract The embodied carbon dioxide (ECO2) of Portland cement (PC) is about 850 kg/t and consequently the global cement manufacture accounts for 7–9% of the CO2 produced by mankind annually. On the other hand, the ECO2 of fly ash (FA) is only 0.1 kg/t.
Yuli Wang, Shuqiong Luo, Lei Yang, Yahong Ding   +3 more
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Variable‐frequency microwave curing of benzocyclobutene

Journal of Applied Polymer Science, 2002
AbstractPolymer dielectrics are widely used in the microelectronics industry for several applications including interlevel dielectrics, encapsulants, and passivating layers. To attain the desired properties, these materials need to be processed via lengthy cure cycles.
Ravindra V. Tanikella, Sue A. Bidstrup Allen, Paul A. Kohl   +2 more
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Practical microwave curing studies for undergraduates

Polymer International, 1999
Microwave curing has recently generated interest as an alternative to the conventional thermal curing of polymers. Advantages of the microwave process over the thermal method include faster curing times, improved efficiency of curing, and enhanced properties of the polymers. This paper describes an undergraduate polymer chemistry experiment utilizing a
Ng, L.-T., Chia, L.H.L.
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Interfacial properties of microwave cured composites

Composites, 1995
A unidirectional continuous E-glass fibre/epoxy composite was cured using microwaves. The mechanical behaviour of the composite was studied by in situ transverse tensile and short-beam bending tests. The mechanisms of rupture were analysed. By comparing microwave cured composites (MCCs) with thermal cured composites (TCCs), it was found that more voids
S.L. Bai, V. Djafari
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Microwaves Bring Curing Homogeneity

Aerospace Testing International, 2018
Efficient microwave technology offers short process times, low energy consumption and process automation of plastics and foams
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Variable frequency microwave curing of photosensitive polyimides

IEEE Transactions on Components and Packaging Technologies, 2001
Variable frequency microwave (VFM) curing was investigated as a means of rapid curing of two photosensitive polyimides. The properties of two polymers, PI 2734 and Ultradel 7501, cured by convective heating and VFM curing were compared. The results of this study indicate that rapid VFM curing of these polymers is feasible.
K.D. Famsworth, R.N. Manepalli, S.A. Bidstrup-Allen, P.A. Kohl   +3 more
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