Reactive compatibilization of PP/PBT blends by a mixture of PP-g-MA and epoxy resin

In this study, dual compatibilizers composed of the commercially available maleic anhydride-grafted polypropylene (PP–MA) and a multifunctional epoxy resin were demonstrated to effectively compatibilize the immiscible and incompatible blends of PP and poly(butylene terephthalate) (PBT). The PP–MA with a low MA content is totally miscible with PP to make the PP phase quasi-functionalized, so that the multifunctional epoxy has the chance to react...