Abstract
Magnetic Polyurethane is synthesized by prepolymerization body method using PBA 2000, MDI, 1-4 butyl glycol and magnetic chain extender, which is synthesized by a method involving the use of dimethylol propionic acid (DMPA) and ferrous powder in dimethylformamide as solvent conditions. The mechanical property of magnetic polyurethane is measured by servo control computer system tension tester,Shore hardness of magnetic polyurethane is measured by LX-A type Shore rubber hardness tester.
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