High-Temperature Properties and Applications of Polymeric Materials

Tant, Martin R.; McManus, Hugh; Rogers, Martin E.

doi:10.1021/bk-1995-0603.ch001

Cited by 24 publications

(13 citation statements)

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“…The speed of weight loss ( k ) versus time has been modeled by using an Arrhenius' law to calculate an estimate material lifetime 17 It appears that the thermal degradation of the constituted epoxide polymer TGMDA and DDMTS seems to present an Arrhenian's behavior.…”

Section: Resultsmentioning

confidence: 99%

Study of epoxy and epoxy-cyanate networks thermal degradation to predict materials lifetime in use conditions

Mortaigne

Régnier

2000

J. Appl. Polym. Sci.

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Composite materials are used more and more for aeronautical applications and they have to be as thermally stable as possible. The thermostability of carbon‐fiber/epoxy–cyanate composites elaborated with an autoadhesive and autoextinguish prepreg were tested. Dynamical and isothermal aging tests were carried out to evaluate the composite thermal stability. Thermal degradation products were identified by chromatography/mass spectrometry analysis and the results obtained were compared with data known on the material network structure. The physicochemical network structure evolutions and the thermal aging data are correlated with the interlaminar shear strength (ILSS) mechanical results. For epoxy–cyanate composites, cracking appears after a longer time of aging than for epoxy composites. This new epoxy–cyanate material isothermal stability seems to be good and particularly good if it was postcured after processing. The comparison of chemical, mechanical, and crack formation results obtained by accelerated aging tests allowed us to determine models to predict long‐term behavior. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 3142–3153, 2000

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Section: Resultsmentioning

confidence: 99%

Study of epoxy and epoxy-cyanate networks thermal degradation to predict materials lifetime in use conditions

Mortaigne

Régnier

2000

J. Appl. Polym. Sci.

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“…Thermogravimetric analyses at different heating rates have been performed on polyetherimides in order to study their thermal stability [17,18]. Foreman et al studied the service lives of PEI under different criteria.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Thermal Degradation and Fire Behavior of High Performance Polymers

2019

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“…In the present work, we have employed ALD technique at low temperature (100–150 °C) to prepare TiO 2 thin films from TDMAT and H 2 O. TDMAT has been used for this study as this precursor allows TiO 2 deposition at low temperature. Low deposition temperature was exploited to study a possibility of depositing TiO 2 thin films on thermally subtle materials such as organics and polymers compounds of organic solar cells such as PEDOT which decomposes at temperature above 390 °C [ 22 , 25 , 26 ]. The aim of this study was to minimize the deposition and heat treatment temperatures without compromising the lifetime of photogenerated charge carriers.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Photogenerated Charge Carrier Lifetimes in ALD Grown TiO2 for Photonic Applications

et al. 2020

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Titanium dioxide (TiO2) thin films are widely employed for photocatalytic and photovoltaic applications where the long lifetime of charge carriers is a paramount requirement for the device efficiency. To ensure the long lifetime, a high temperature treatment is used which restricts the applicability of TiO2 in devices incorporating organic or polymer components. In this study, we exploited low temperature (100–150 °C) atomic layer deposition (ALD) of 30 nm TiO2 thin films from tetrakis(dimethylamido)titanium. The deposition was followed by a heat treatment in air to find the minimum temperature requirements for the film fabrication without compromising the carrier lifetime. Femto-to nanosecond transient absorption spectroscopy was used to determine the lifetimes, and grazing incidence X-ray diffraction was employed for structural analysis. The optimal result was obtained for the TiO2 thin films grown at 150 °C and heat-treated at as low as 300 °C. The deposited thin films were amorphous and crystallized into anatase phase upon heat treatment at 300–500 °C. The average carrier lifetime for amorphous TiO2 is few picoseconds but increases to >400 ps upon crystallization at 500 °C. The samples deposited at 100 °C were also crystallized as anatase but the carrier lifetime was <100 ps.

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High-Temperature Properties and Applications of Polymeric Materials

Cited by 24 publications

References 0 publications

Study of epoxy and epoxy-cyanate networks thermal degradation to predict materials lifetime in use conditions

Study of epoxy and epoxy-cyanate networks thermal degradation to predict materials lifetime in use conditions

Thermal Degradation and Fire Behavior of High Performance Polymers

Optimization of Photogenerated Charge Carrier Lifetimes in ALD Grown TiO2 for Photonic Applications

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