The one step method was adopted in this study to synthesize aliphaticpolyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).
The effects of organic silicon mass fraction on polymer state, mechanical properties, water resistance and yellowing resistance of siloxane-modified aliphaticpolyurethane were investigated.