Chain Extender

Product DescriptionHowinTM SMA-725Product DescriptionHOWINTM SMA-725 is a random copolymer of styrene and maleic anhydride, produced by bulk polymerization process. Its appearance is yellowish transparent granule.ApplicationHOWINTM SMA-725 includes a mass of maleic anhydride group, which can be applied to: Chain extender for PA, improving viscosity and mechanical strength of PA and PA+GF.CharacteristicsA. SMA-725 is used as chain extender of PA.a) As chain extender, SMA-725