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首页> 外文期刊>Journal of Applied Polymer Science >Use of acrylate-based liquid rubbers as toughening agents and adhesive property modifiers of epoxy resin
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Use of acrylate-based liquid rubbers as toughening agents and adhesive property modifiers of epoxy resin

机译：丙烯酸酯基液态橡胶作为环氧树脂的增韧剂和粘合性能改良剂的用途

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Carboxyl-randomized poly(2-ethyl hexyl acrylate) (CRPEHA) and epoxy-randomized poly(2-ethythexyl acrylate) (ERPEHA) were synthesized by solution polymerization technique in the form of liquid rubbers. The liquid rubbers were characterized by IR and H-1-NMR spectroscopic analysis, nonaqueous titration, and GPC. The liquid rubbers were pre-reacted with the epoxy resin and the modified epoxy networks were made by curing with an ambient temperature curing agent. The modified epoxy networks containing different concentrations of CRPEHA (A-1) and ERPEHA (B-1) were evaluated with respect to their thermal and impact properties. The optimum properties were obtained at 10-phr concentration of a (1 : 1) mixture of CRPEHA and ERPEHA. Fracture surface analysis by scanning electron microcopy indicated the presence of a two-phase microstructure. (C) 2004 Wiley Periodicals, Inc.
机译：通过溶液聚合技术以液态橡胶的形式合成了羧基无规化的聚丙烯酸2-乙基己酯（CRPEHA）和环氧无规化的丙烯酸丙烯酸2-乙基酯（ERPEHA）。通过IR和H-1-NMR光谱分析，非水滴定和GPC表征液体橡胶。将液态橡胶与环氧树脂进行预反应，并通过使用环境温度固化剂进行固化来制备改性的环氧网络。评估了包含不同浓度的CRPEHA（A-1）和ERPEHA（B-1）的改性环氧网络的热性能和冲击性能。在10份浓度的CRPEHA和ERPEHA（1：1）混合物中可获得最佳性能。通过扫描电子显微镜的断裂表面分析表明存在两相微观结构。 （C）2004年Wiley Periodicals，Inc.

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