包装用无溶剂聚氨酯复膜胶的制备及性能研究  

Study on Preparation and Properties of Solvent-free Polyurethane Laminating Adhesive for Packaging

作　　者：曾海霞 赵煜松 王贵文 ZENG Haixia;ZHAO Yusong;WANG Guiwen(Hebei Center for Medical Device Evaluation,Hebei Center for Drug Evaluation,Shijiazhuang 050091,China;Hebei Institute for Drug and Medical Device Control,Shijiazhuang 050227,China)

机构地区：[1]河北省药品审评中心河北省医疗器械技术审评中心,河北石家庄050091 [2]河北省药品医疗器械检验研究院,河北石家庄050227

出　　处：《化学与粘合》2024年第1期35-37,43,共4页Chemistry and Adhesion

摘　　要：针对传统溶剂型聚氨酯软包装复膜胶释放污染性物质的问题,制备一种更环保的无溶剂水性聚氨酯(SFWP)包装复膜胶,并对比不同配比下的聚氨酯复膜胶性能。结果表明,乳液性能测试得出当R值=1.2时,得出乳液的稳定性、外观等最佳;IPDI和甲苯二异氰酸酯(TDI)分别与PPG制备的复膜胶具备较好的力学性能,两种复膜胶拉伸强度可达9.66 MPa和11.86 MPa,且复膜胶剥离强度最低,分别为0.16 N/cm和0.11 N/cm。PPG与亚甲基二异氰酸酯(HDI)、异佛尔酮二异氰酸酯(IPDI)制备的复膜胶具备较好的可见光透过率达91.81%和89.74%。在实际工业运用中,可根据需求选择适合原料制备无溶剂复膜胶。In order to solve the problem of traditional solvent based polyurethane flexible packaging laminating adhesive releasing pollutants,a more environmentally friendly solvent free waterborne polyurethane(SFWP)packaging laminating adhesive is prepared,and the performances of polyurethane laminating adhesive with different proportions are compared.The results show that when R value=1.2,the stability and appearance of emulsion are the best;The laminating adhesive prepared using IPDI and TDI with PPG respectively has good mechanical properties.The tensile strength of the two kinds of laminating adhesive is 9.66 MPa and 11.86 MPa respectively,and the peel strength of laminating adhesive is the lowest,which is 0.16 N/cm and 0.11 N/cm respectively.The laminating adhesive prepared by PPG,HDI and IPDI has good visible light transmittance,reaching 91.81%and 89.74%respectively.In the practical industrial application,the suitable raw materials can be selected according to the needs to prepare the solvent free laminating adhesive.

关 键 词：水性聚氨酯 复膜胶 剥离强度 可见光透过率 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]