{"title":"用非等温DSC数据研究环氧树脂固化动力学","authors":"D Roşu, C.N Caşcaval, F Mustątǎ, C Ciobanu","doi":"10.1016/S0040-6031(01)00672-4","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>The curing kinetics of diglycidyl ether of bisphenol A<span><span><span><span> (DGEBA) and diglycidyl ether of hydroquinone (DGEHQ) </span>epoxy resins in presence of diglycidyl </span>aniline as a reactive diluent and triethylenetetramine (TETA) as the </span>curing agent<span> was studied by non-isothermal differential scanning calorimetry<span> (DSC) technique at different heating rates. The kinetic parameters of the curing process were determined by isoconversional method given by Málek for the </span></span></span></span>kinetic analysis of the data obtained by the thermal treatment. A two-parameter (</span><em>m</em>, <em>n</em><span>) autocatalytic model (Šesták–Berggren equation) was found to be the most adequate selected to describe the cure kinetics of the studied epoxy resins. Reactive diluent decreases both the activation energy and the cure kinetic parameters. Non-isothermal DSC curves obtained using the experimental data show a good agreement with that theoretically calculated.</span></p></div>","PeriodicalId":23058,"journal":{"name":"Thermochimica Acta","volume":"383 1","pages":"Pages 119-127"},"PeriodicalIF":3.5000,"publicationDate":"2002-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0040-6031(01)00672-4","citationCount":"281","resultStr":"{\"title\":\"Cure kinetics of epoxy resins studied by non-isothermal DSC data\",\"authors\":\"D Roşu, C.N Caşcaval, F Mustątǎ, C Ciobanu\",\"doi\":\"10.1016/S0040-6031(01)00672-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span><span>The curing kinetics of diglycidyl ether of bisphenol A<span><span><span><span> (DGEBA) and diglycidyl ether of hydroquinone (DGEHQ) </span>epoxy resins in presence of diglycidyl </span>aniline as a reactive diluent and triethylenetetramine (TETA) as the </span>curing agent<span> was studied by non-isothermal differential scanning calorimetry<span> (DSC) technique at different heating rates. The kinetic parameters of the curing process were determined by isoconversional method given by Málek for the </span></span></span></span>kinetic analysis of the data obtained by the thermal treatment. A two-parameter (</span><em>m</em>, <em>n</em><span>) autocatalytic model (Šesták–Berggren equation) was found to be the most adequate selected to describe the cure kinetics of the studied epoxy resins. Reactive diluent decreases both the activation energy and the cure kinetic parameters. Non-isothermal DSC curves obtained using the experimental data show a good agreement with that theoretically calculated.</span></p></div>\",\"PeriodicalId\":23058,\"journal\":{\"name\":\"Thermochimica Acta\",\"volume\":\"383 1\",\"pages\":\"Pages 119-127\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2002-02-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0040-6031(01)00672-4\",\"citationCount\":\"281\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Thermochimica Acta\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0040603101006724\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thermochimica Acta","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0040603101006724","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Cure kinetics of epoxy resins studied by non-isothermal DSC data
The curing kinetics of diglycidyl ether of bisphenol A (DGEBA) and diglycidyl ether of hydroquinone (DGEHQ) epoxy resins in presence of diglycidyl aniline as a reactive diluent and triethylenetetramine (TETA) as the curing agent was studied by non-isothermal differential scanning calorimetry (DSC) technique at different heating rates. The kinetic parameters of the curing process were determined by isoconversional method given by Málek for the kinetic analysis of the data obtained by the thermal treatment. A two-parameter (m, n) autocatalytic model (Šesták–Berggren equation) was found to be the most adequate selected to describe the cure kinetics of the studied epoxy resins. Reactive diluent decreases both the activation energy and the cure kinetic parameters. Non-isothermal DSC curves obtained using the experimental data show a good agreement with that theoretically calculated.
期刊介绍：
Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application.
The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta.
The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas:
- New and improved instrumentation and methods
- Thermal properties and behavior of materials
- Kinetics of thermally stimulated processes
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