@article{Song:2018:10.1002/mame.201800363,
author = {Song, W and Tagarielli, VL and Lee, KY},
doi = {10.1002/mame.201800363},
journal = {Macromolecular Materials and Engineering},
title = {Enhancing the fracture resistance and impact toughness of mechanically frothed epoxy foams with hollow elastomeric microspheres},
url = {http://dx.doi.org/10.1002/mame.201800363},
volume = {303},
year = {2018}
}

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TY  - JOUR
AB  - Nonporous elastomeric particles are often employed to improve the toughness of brittle epoxy foams but this also decreases their compressive strength and stiffness. Herein, a novel strategy utilizing hollow elastomeric microspheres as toughening agent for epoxy foams is presented. The addition of 0.5 wt.% hollow elastomeric microspheres into epoxy foam leads to a 15% increase in critical stress intensity factor (K1c) to 0.38 MPa m0.5and 33% increase in Charpy impact strength (acU) to 1.05 kJ m−2, respectively, compared to unfilled epoxy foam (K1c = 0.33 MPa m0.5and acU= 0.79 kJ m−2). However, a further increase in the hollow elastomeric microsphere concentration to 1.0 wt.% leads to microsphere agglomeration, which reduces both K1cand acUto 0.35 MPa m0.5and 0.93 kJ m−2, respectively. Nevertheless, the added hollow elastomeric microspheres do not lead to a reduction in the quasi-static compressive properties of the epoxy foams.
AU  - Song,W
AU  - Tagarielli,VL
AU  - Lee,KY
DO  - 10.1002/mame.201800363
PY  - 2018///
SN  - 1438-7492
TI  - Enhancing the fracture resistance and impact toughness of mechanically frothed epoxy foams with hollow elastomeric microspheres
T2  - Macromolecular Materials and Engineering
UR  - http://dx.doi.org/10.1002/mame.201800363
UR  - http://hdl.handle.net/10044/1/64306
VL  - 303
ER  - 

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