Synthesis of Recyclable Hyperbranched Polymers with High Efficiency of Promoting Degradation of Epoxy Resins

2018 ◽  
Vol 3 (17) ◽  
pp. 4873-4883 ◽  
Author(s):  
Luping Wang ◽  
Sufang Chen ◽  
Juan Cheng ◽  
Wenqiang Guo ◽  
Yimei Wang ◽  
...  
Keyword(s):  
Epoxy Resins ◽  
High Efficiency ◽  
Hyperbranched Polymers

scholarly journals Hyperbranched phosphorus flame retardants: multifunctional additives for epoxy resins

2019 ◽  
Vol 10 (31) ◽  
pp. 4346-4358 ◽  
Author(s):  
Alexander Battig ◽  
Jens C. Markwart ◽  
Frederik R. Wurm ◽  
Bernhard Schartel
Keyword(s):  
Flame Retardancy ◽  
Epoxy Resins ◽  
Flame Retardants ◽  
Hyperbranched Polymers ◽  
Multifunctional Additives

Novel phosphorus-based hyperbranched polymers provide multifunctional flame retardancy to epoxy resins.

scholarly journals Enhancing Toughness and Impact Strength of Epoxy Resins by Using Hyperbranched Polymers

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Hangyu Park ◽  
Youngson Choe
Keyword(s):  
Molecular Weight ◽  
Impact Strength ◽  
Epoxy Resins ◽  
Impact Resistance ◽  
Experimental Studies ◽  
Molecular Size ◽  
Hyperbranched Polymers ◽  
Phase Separations ◽  
Hyperbranched Poly ◽  
The Impact

Toughened epoxy has been widely used in industrial areas such as automotive and electronics. In this study, nanosized hyperbranched polymers (HBPs) as a flexibilizer are synthesized and embedded into epoxy resin to enhance the toughness and flexibility. Two different HBPs, hyperbranched poly(methylacrylate-diethanolamine) (poly(MA-DEA)) and poly(methylacrylate- ethanolamine) (poly(MA-EA)), were prepared and blended with both epoxy and polyetheramine, a curing agent. The molecular size of HBPs was estimated to be 6 ~ 14 nm in diameter. The molecular weight of HBPs ranges from 1500(1.5 K) to 7000(7.0 K) g/mol. In cured epoxy/HBP blends, no phase separations are occurred, indicating that HBPs possess sufficient miscibility with epoxy. The tensile toughness of the blends increased with changing the molecular weight of HBPs without sacrificing tensile strengths. The impact strength of the blends increases stiffly until the loading % of HBPs in the blends reaches 10 wt%. In addition, the experimental studies showed that impact resistance also increased with an increase in molecular weight of HBPs. The obtained impact resistance of the epoxy/HBP blends with 10 wt% was 270% more effective compared to that of cured neat epoxy.

Dendritic hyperbranched polymers as tougheners for epoxy resins

Polymer ◽  
1999 ◽  
Vol 40 (9) ◽  
pp. 2249-2261 ◽  
Author(s):  
Louis Boogh ◽  
Bo Pettersson ◽  
Jan-Anders E. Månson
Keyword(s):  
Epoxy Resins ◽  
Hyperbranched Polymers

The effect of amino-terminated hyperbranched polymers on the impact resistance of epoxy resins

2015 ◽  
Vol 294 (3) ◽  
pp. 607-615 ◽  
Author(s):  
Shuiping Li ◽  
Huajun Zhu ◽  
Tingting Lv ◽  
Qin Lin ◽  
Haijun Hou ◽  
...  
Keyword(s):  
Epoxy Resins ◽  
Impact Resistance ◽  
Hyperbranched Polymers ◽  
The Impact
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