Modification of nano-calcium carbonate particles and its effect on epoxy resin
A nano-calcium carbonate/silane coupling agent (NCC/SCA) master batch was prepared by the reaction of a silane coupling agent (γ-aminopropyl triethoxy silane,trade name KH550) with the hydroxyl groups of the nano-CaCO3.Fourier transform infrared and thermal gravimetric analysis both indicated that the nanoparticles were grafted by the silane coupling agent.An epoxy resin was modified by adding the NCC/SCA master batch.A simple dipping test suggested that a better dispersion of the treated NCC in epoxy could be obtained than that of untreated NCC.Then, samples of epoxy nano-composites were prepared by a hot press process.The compressive property of the epoxy nano-composites was investigated.The results of the mechanical property tests revealed that the compressive strength, elastic modulus and the total fracture work of the epoxy matrix filled with the treated NCC were significantly improved relative to that filled with un-treated NCC.
Nano-calcium carbonate silane coupling agent composites mechanical
Hongwei He
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,P.R.China;Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education,Taiyuan University of Technology, Taiyuan 030024, China
国内会议
宁波
英文
137-146
2014-11-11（万方平台首次上网日期，不代表论文的发表时间）