Abstract A series of hot-melt adhesives (HMAs) were made from poly(ethylene-co-vinyl acetate) (EVA) and a glycerol ester of partially hydrogenated rosin (Staybelite Ester 10, SE10) in various ratios. A content of 70 parts of SE10 per hundred parts (phr) of EVA showed a maximal peel strength. The effect of decreasing the rubbery plateau G′ value and increasing the glass transition temperature while increasing the SE10 content seems evident in the peel strength study. The trend also showed that the tackifier became less effective when the Tg's of the adhesive mixture were higher than a limit temperature (i.e., 15 °C). With 70 phr of SE10, the compatibility of the adhesive blend was further improved by adding 10 phr of wax, and the recipe displayed an even higher peel strength value. The presence of wax leads to ultrahigh cohesive strength, which is related to the rapid increase in crystallinity of the adhesive mixture. Formulating with a larger amount of wax worsens the peel strength, which may be explained by the formation of a weak boundary layer of the adhesive mixture on the surface of the adhesive blend.

中文翻译：

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聚（乙烯-共-醋酸乙烯酯）基热熔胶的粘合和粘弹性-增粘剂和蜡的影响

摘要 一系列热熔胶（HMA）由聚（乙烯-醋酸乙烯酯）（EVA）和部分氢化松香的甘油酯（Staybelite Ester 10，SE10）按不同比例制成。每百份 (phr) EVA 70 份 SE10 的含量显示出最大剥离强度。在剥离强度研究中，降低橡胶平台 G' 值和提高玻璃化转变温度同时增加 SE10 含量的效果似乎很明显。该趋势还表明，当粘合剂混合物的 Tg 高于极限温度（即 15°C）时，增粘剂变得不那么有效。使用 70 份的 SE10，通过添加 10 份的蜡进一步提高了粘合剂混合物的相容性，并且配方显示出更高的剥离强度值。蜡的存在导致超高的内聚强度，这与粘合剂混合物结晶度的快速增加有关。用大量蜡配制会使剥离强度变差，这可以通过在粘合剂混合物表面形成粘合剂混合物的弱边界层来解释。