Abstract Polyesteramide (PEA) based hot melt adhesive (HMA) was successfully designed containing a high content of renewable mass. The PEA HMA was synthesized based on dimer acid (DA), catechol, ethylenediamine (EDA), ricinoleic acid amide (RA amide) which was synthesized by using ricinoleic acid and diethanolamine. RA amide was reacted with dimer acid with a varying concentration of RA amide by 5%, 10%, 15% and 20% on a molar basis. Catechol was further added on the molar basis of 10%, 20%, and 30% as a partial replacement of ethylenediamine. The effect on the properties of the hot melt adhesive, such as mechanical properties: tensile strength, shore D hardness, elongation at break; thermal properties: glass transition temperature (Tg), melting temperature (Tm), heat of crystallization (Hc), crystallization temperature (Tc); adhesion properties: lap shear strength (LSS) and T-peel strength (TPS); rheological properties and degree of crystallinity was investigated. It was observed that the mechanical and thermal properties are increased with increasing concentration of RA amide and catechol. These HMA materials could hold potential for sustainability and high adhesive performance.

中文翻译：

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用于聚酯酰胺热熔胶的脂肪酸基新型前体

摘要 基于聚酯酰胺 (PEA) 的热熔胶 (HMA) 被成功设计为含有高含量的可再生物质。PEA HMA是以二聚酸（DA）、儿茶酚、乙二胺（EDA）、蓖麻油酸酰胺（RA酰胺）为基础合成的，蓖麻油酸和二乙醇胺合成。RA酰胺与二聚酸反应，RA酰胺的浓度为5%、10%、15%和20%（以摩尔计）。以10%、20%和30%的摩尔数进一步加入儿茶酚作为乙二胺的部分替代。对热熔胶性能的影响，如机械性能：拉伸强度、肖氏D硬度、断裂伸长率；热学性质：玻璃化转变温度（Tg）、熔化温度（Tm）、结晶热（Hc）、结晶温度（Tc）；粘合性能：搭接剪切强度 (LSS) 和 T 型剥离强度 (TPS)；研究了流变特性和结晶度。据观察，机械和热性能随着 RA 酰胺和儿茶酚浓度的增加而增加。这些 HMA 材料具有可持续性和高粘合性能的潜力。