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Study on Modified Epoxy Curing Reagent by Oganosilicon and Properties of Curing Product

Songqi Ma

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Abstract

Novolac resin was modified by the grafting reaction with the condensation product of polymethyl triethoxy silane(PTS) and ethoxy-propoxy-propyl-trimethoxy silane,which could be used for curing epoxy resin.The different modified novolac resins were prepared from the different ratio of materials and cured with epoxy resins.The cured products were tested by the impact strength,glass transition temperature and thermogravimetric analysis.Results showed that the glass transition temperatures of modified cured products was 30 ℃ higher than the pure product.The impact strength increased more than 36.6%,and the thermal stability was improved.

About this research paper

What this paper is about

Novolac resin was modified by the grafting reaction with the condensation product of polymethyl triethoxy silane(PTS) and ethoxy-propoxy-propyl-trimethoxy silane,which could be used for curing epoxy resin.The different modified novolac resins were prepared from the different ratio of materials and cured with epoxy resins.The cured products were tested by the impact strength,glass transition temperature and thermogravimetric analysis.Results showed that the glass transition temperatures of modified cured products was 30 ℃ higher than the pure product.The impact strength increased more than 36.6%,and the thermal stability was improved.

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Available abstract

Novolac resin was modified by the grafting reaction with the condensation product of polymethyl triethoxy silane(PTS) and ethoxy-propoxy-propyl-trimethoxy silane,which could be used for curing epoxy resin.The different modified novolac resins were prepared from the different ratio of materials and cured with epoxy resins.The cured products were tested by the impact strength,glass transition temperature and thermogravimetric analysis.Results showed that the glass transition temperatures of modified cured products was 30 ℃ higher than the pure product.The impact strength increased more than 36.6%,and the thermal stability was improved.

Key concepts: Epoxy, Curing (chemistry), Thermogravimetric analysis, Materials science, Silane, Glass transition, Reagent, Thermal stability

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