Synthesis and Characterization of Bio-based Epoxy Blends from Renewable Resource Based Epoxidized Soybean Oil as Reactive Diluent

被引：86
|
作者：
Sahoo, Sushanta K. [1 ]
Mohanty, Smita [1 ]
Nayak, Sanjay K. [1 ]
机构：
[1] CIPET, LARPM, Bhubaneswar 751024, Odisha, India
来源：
CHINESE JOURNAL OF POLYMER SCIENCE | 2015年 / 33卷 / 01期
关键词：
Bio-based epoxy; Soybean oil; Fracture toughness; Curing kinetics; TMA; MECHANICAL-PROPERTIES; PLANT OILS; FRACTURE-TOUGHNESS; THERMAL-PROPERTIES; IMPACT-STRENGTH; POLYMER SCIENCE; RESIN SYSTEM; BISPHENOL-A; BEHAVIOR; RUBBER;
D O I：
10.1007/s10118-015-1568-4
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A novel bioresin, epoxidized soybean oil was synthesized by in situ method and was characterized employing FTIR and NMR. The bioresin was blended with epoxy (DGEBA) at different ratios as reactive diluents for improved processibility and toughened nature. The composition with 20 wt% bioresin exhibited improved impact strength to the tune of 60% as compared to virgin epoxy. Fracture toughness parameters critical stress intensity factor (K-IC) and critical strain energy release rate (G(IC)) were evaluated using single edge notch bending test and demonstrated superior enhancement in toughness. Dynamic mechanical, thermal, thermo mechanical and fracture morphological analyses have been studied for bio-based epoxy blends. Curing kinetics has been evaluated through DSC analysis to investigate the effect of bioresin on cross-linking reaction of neat epoxy with triethylenetetramine as curing agent.
引用
收藏
页码：137 / 152
页数：16
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