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摘要：本課題主要研究含異氰脲酸酯環(huán)增塑劑的制備及其對(duì)聚氯乙烯（PVC）的增塑性能。以三羥乙基異氰脲酸酯（THEIC）和異辛酸、丙酸為原料，濃H2SO4為催化劑，二甲苯為共沸劑成功制備THEIC-三異辛酸酯。通過(guò)核磁共振(1H NMR)測(cè)試將制得的增塑劑結(jié)構(gòu)進(jìn)行了表征。結(jié)果表明，THEIC-三異辛酸酯和THEIC-三丙酸酯的實(shí)際結(jié)構(gòu)與理論結(jié)構(gòu)相符。將THEIC-三異辛酸酯與THEIC-三丙酸酯對(duì)聚氯乙烯（PVC）進(jìn)行增塑改性對(duì)比，研究了增塑PVC的力學(xué)性能，塑化性能，流變性能。研究結(jié)果表明，THEIC-三丙酸酯較適合作為PVC的增塑劑，而THEIC-三異辛酸酯與PVC的相容性太差，不能有效增塑PVC。THEIC-三丙酸酯增塑的聚氯乙烯（PVC）在增塑劑含量為50%時(shí)，力學(xué)性能，塑化性能，流變性能最好。 關(guān)鍵詞：三羥乙基異氰脲酸酯；增塑劑；聚氯乙烯；塑化性能；力學(xué)性能
Abstract：This paper mainly research the preparation of plasticizers containing isocyanurate ring and the property of plasticized polyvinyl chloride (PVC). Plasticizer was prepared using Tris(2-hydroxyl ethyl) isocyanurate (THEIC) 2-Ethylcapronic acid and propionie acid as raw materials, concentrated sulfuric acid as a catalyst and xylene as entrainer. The structure of the plasticizers was analysised by nuclear magnetic resonance (1H NMR). The results showed that the structure of tris(2-hydroxyl ethyl) isocyanurate tris-ethylhexanoate and tris(2-hydroxyl ethyl) isocyanurate tris- propionate is consistent with the theoretical structure. Tris(2-hydroxyl ethyl) isocyanurate tris-ethylhexanoate was compared with tris(2-hydroxyl ethyl) isocyanurate tris- propionate for plasticized modified PVC by mechanical properties, plasticizing properties, rheological properties. The results showed that tris(2-hydroxyl ethyl) isocyanurate tris- propionate is more suitable as a plasticizer of PVC, and the compatibility of tris(2-hydroxyl ethyl) isocyanurate tris-ethylhexanoate is too bad for PVC,it can not be effectively plasticized PVC. When tris(2-hydroxyl ethyl) isocyanurate tris- propionate content is 50%, the mechanical properties, plasticizing properties and rheological properties were the best. Key words: tris(2-hydroxyl ethyl) isocyanurate；plasticizer；polyvinyl chloride；plasticizing properties；mechanical properties；
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