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5700913 
Journal Article 
Studies on SBR and EVA surfaces treated with new adhesion activators 
Hong, YP; Zhang, DR; Oh, SW; Ahn, BH; Kang, YS 
2004 
Yes 
Journal of Industrial and Engineering Chemistry
ISSN: 1226-086X 
ELSEVIER SCIENCE INC 
NEW YORK 
10 
5 
806-812 
English 
WOS:000224160700019 
New types of adhesion activators, Lichlor-6 (consisting of lithium chlorohexylisocyanurate and lithium dichloroisocyanurate), Lichlor-7 (consisting of lithium chloroheptylisocyanurate and lithium dichloroisocyanurate), and Nachlor-6 (consisting of sodium chlorohexylisocyanurate and sodium dichloroisocyanurate), which can be dissolved in water instead of harmful organic solvents, were synthesized to allow surface treatment to improve the adhesion between polymer surfaces. The surfaces of styrene-butadiene rubber (SBR) and ethylene vinyl acetate (EVA) were treated with 2 wt% solutions of Lichlor-6, Lichlor-7, and Nachlor-6, respectively. Waterborne polyurethane (PU) adhesive was used to joint the treated surfaces of SBR and EVA. The water contact angles of the SBR and EVA surfaces decreased noticeably because of the increased surface roughness caused by treatment with the 2 wt% adhesion activators; the decreases in the contact angles of the SBR surfaces are larger than those of the EVA surfaces because of the more-polar group (silica) present in the SBR than that in the EVA. Easier breaks of joints occurred in the layer between the EVA and PU adhesive as a result of the higher contact angles on the EVA surfaces than those on the SBR surfaces. The tested tear resistance values of joints increased in the order Lichlor-6, Lichlor-7, and Nachlor-6. This order is in good agreement with the order of the relative intensities of the polar group bands in the ATR-IR spectra of EVA. 
adhesion activator; trichloroisocyanuric acid; styrene-butadiene rubber; ethylene vinyl acetate; tear resistance