CAJ | 학술논문

以聚已内酯二醇(PCL220N)、甲苯二异氰酸酯(TDI-80)、二羟甲基丙酸(DMPA)为基料,以三羟甲基丙烷(TMP)为交联剂、环氧树脂(E-44)和松香为改性剂,制备出环氧树脂和松香改性的TDI水性聚氨酯胶粘剂。同时考察了环氧树脂(E-44)、松香和三羟甲基丙烷用量以及n(—NCO)/n(—OH)比值对TDI水性聚氨酯胶粘剂力学性能的影响。结果表明,当环氧树脂含量为5.73%,松香含量为8.92%,三羟甲基丙烷含量为2.68%,n(—NCO)/n(—OH)比值为1.23时,TDI水性聚氨酯胶粘剂的拉伸强度达到最大值为4.72 MPa。
이취이내지이순(PCL220N)、갑분이이청산지(TDI-80)、이간갑기병산(DMPA)위기료,이삼간갑기병완(TMP)위교련제、배양수지(E-44)화송향위개성제,제비출배양수지화송향개성적TDI수성취안지효점제。동시고찰료배양수지(E-44)、송향화삼간갑기병완용량이급n(—NCO)/n(—OH)비치대TDI수성취안지효점제역학성능적영향。결과표명,당배양수지함량위5.73%,송향함량위8.92%,삼간갑기병완함량위2.68%,n(—NCO)/n(—OH)비치위1.23시,TDI수성취안지효점제적랍신강도체도최대치위4.72 MPa。
The epoxy resin and rosin modified TDI waterborne polyurethane adhesive was prepared with polyethylene glycol(PCL220N),toluene diisocyanate(TDI-80),dimethylolpropionic acid(DMPA)as the basic materials,with trimethylolpropane(TMP) as crosslinking agent,and with epoxy resin(E-44) and rosin as modifying agent. The influence of the epoxy resin ( E-44 ) , rosin and trimethylolpropane dosage and the ratio of n( NCO)/n( OH) on the mechanics property of the TDI waterborne polyurethane adhesive was studied. The results show that when the epoxy resin content is 5. 73%,the rosin content is 8. 92%, the trimethylolpropane content is 2. 68%,the ratio of n(NCO)/n(OH) is 1. 23,the tensile strength of the TDI waterborne polyurethane adhesive reaches maximum 4. 72 MPa.