WU Wei, HUI Linlin, WANG Zheng. Preparation of EPDM-g-MAZn ionomer by precipitation process and its influence on performance of PP/APP/PER IFR system[J]. CIESC Journal, 2014, (12): 5017-5022.
WU Wei, HUI Linlin, WANG Zheng. Preparation of EPDM-g-MAZn ionomer by precipitation process and its influence on performance of PP/APP/PER IFR system[J]. CIESC Journal, 2014, (12): 5017-5022.DOI: 10.3969/j.issn.0438-1157.2014.12.050.
The EPDM (EPDM) zinc ionomer (EPDM-g-MAZn) grafted with maleic anhydride (MAH) was used as modifying agent in the PP/IFR system. The flame retardant mechanism of the EPDM-g-MAZn and its effects on the mechanical properties of PP/IFR were studied. Flame retardancy was good and tensile strength remained the same with the addition of EPDM-g-MAZn in PP/IFR. The impact strength of PP/EPDM-g-MAZn/IFR was 4.46 times higher than that of PP/IFR
but the tensile strength retention rate of PP/IFR was significantly higher than that of PP/EPDM-g-MAH/IFR. A crosslinked structure containing ZnO and EPDM segments was formed via the ionic bond of MAH. The interface bonding strength between PP and IFR was improved by the effects of the crosslinking agent as well as reinforcing agent. As a result
the mechanical properties of PP/IFR were effectively promoted.