Polybutylacrylate/poly (methyl methacrylate) Core-Shell Elastic Particles as Epoxy Resin Toughener:Part II Toughness on DGEBA/DDM system

材料科学技术（英文）, 2004, 20(6): 787-790.

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1.Zhejiang Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials,Zhejiang University of Technology, Hangzhou 310014, China

2.Research Center for Energy Conversion and Storage, Department of Polymer Science and Technology,Chonbuk National University, 664-1, Dukjin, Chonju, Chonbuk 561-756, Korea

3.Zhejiang Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials,Zhejiang University of Technology, Hangzhou 310014, China

4.Zhejiang Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials,Zhejiang University of Technology, Hangzhou 310014, China

5.Zhejiang Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials,Zhejiang University of Technology, Hangzhou 310014, China

基金项目: the grant of Post-Doc. Program,Chonbuk National University

Polybutylacrylate/poly (methyl methacrylate) Core-Shell Elastic Particles as Epoxy Resin Toughener:Part II Toughness on DGEBA/DDM system

Keywords： Epoxy resin

Mechanical properties of epoxy resin were investigated by adding core-shell elastic particles (CSEP). The results indicated that optimized core-shell ratio was 60/40 and the loading volume of CSEP was 10 phr (per hundred parts of epoxy resin by weight). The impact strength of modified systems increased apparently with the decrease of core sizes. However, the shearing strength changed gently with the particle sizes. CSEP with lightly crosslinked rubbery core showed more effectiveness on toughness than others. With solution blending, CSEP could be dispersed in epoxy matrix well, and the morphologies of dispersed rubber domains were controlled perfectly by CSEP whose structure was predesigned. A cavitation-shearing band toughness mechanism was observed from the SEM micrographs of fracture surface. It also was found that the deforming temperature (DT) of modified epoxy did not decline apparently.

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Polybutylacrylate/poly (methyl methacrylate) Core-Shell Elastic Particles as Epoxy Resin Toughener:Part II Toughness on DGEBA/DDM system

参考文献