The effect of plasticization on the functional properties of thermoplastic polyurethane ureas

International Workshop "Advanced Technologies in Material Science, Mechanical and Automation Engineering – MIP: Engineering – 2019"

材料科学;机械制造;原子能学

Senichev, V Yu^1 ; Makarova, M.A.^1 ; Savchuk, A.V.^1 ; Slobodinyuk, A.I.^1 ; Oshchepkova, T.E.^1

Institute of Technical Chemistry of Ural Branch of Russian Academy of Sciences, 3 Akad. Korolev Street, Perm

614013, Russia^1

关键词: Functional properties;    Isophorone diisocyanate;    Low glass transition temperatures;    Polyether urethanes;    Segmented polyurethanes;    Softening temperature;    Thermoplastic materials;    Thermoplastic polyurethanes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/537/2/022005/pdf
DOI  :  10.1088/1757-899X/537/2/022005

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Several series of plasticized segmented polyether urethane of linear structure which can be used as the polymer base of thermoplastic materials were synthesized. The possibility of obtaining thermoplastic segmented polyurethane ureas with a softening temperature of 100 120°C when using isophorone diisocyanate as the main element for building polymer chains, and DEHS as a plasticizer was proven. The original method for the purification of aromatic amine 4,4′-methylene-bis(2-chloroaniline) used in the process of synthesizing polyurethane ureas as a chain extender was developed. The polymers obtained have a uniquely low glass transition temperature close to -100°C with a plasticizer concentration of not more than 40%. The strength of these materials is more than 10 MPa at room temperature, and it is more 40 MPa at -70°C.