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http://dx.doi.org/10.7473/EC.2016.51.3.175

Influence of Amino Acidic Additives on Properties of EPDM-g-MAH/ZnO Composites  

Choi, Sung-Seen (Department of Chemistry, Sejong University)
Kim, Yeowool (Department of Chemistry, Sejong University)
Chung, Yu Yeon (Department of Chemistry, Sejong University)
Bae, Jong Woo (Korea Institute of Footwear & Leather Technology)
Kim, Jung-Soo (Korea Institute of Footwear & Leather Technology)
Publication Information
Elastomers and Composites / v.51, no.3, 2016 , pp. 175-180 More about this Journal
Abstract
Influence of amino acidic chemical on properties of maleic anhydride-grafted ethylene-propylene-diene terpolymer/zinc oxide (EPDM-g-MAH/ZnO) composites was investigated. 4-Aminosalicylic acid (ASA), 4-amino-2-methoxybenzoic acid (AMBA), 12-aminolauric acid (ALA), and glutamine (Gln) were employed as the amino acidic chemicals. Though small quantity (0.5 phr) of the amino acidic chemical was added to the EPDM-g-MAH/ZnO composite, the properties were notably changed. By adding the amino acidic chemical, the percent crystallinity and apparent crosslink density were reduced. Order of the percent crystallinity was related to that of the $pK_a$ values of amino acidic chemicals. By adding the amino acidic chemical, the basic tensile properties were on the whole improved. The experimental results were explained by the $pK_a$ values of amino acidic chemicals, change of zinc ionomer formation, and interactions between the additive and EPDM-g-MAH chain.
Keywords
EPDM-g-MAH; amino acidic additive; crystallinity; crosslink density; tensile property;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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