A commercial liquid crystalline polymer(LCP) was used to blend with polypropylene(PP), and a PP-g-MAH was used to improve the compatibilization of PP and LCP. The structure-properties of PP/LCP and PP/LCP/PP-g-MAH composites were studied with DSC and SEM. The results showed that the addition of a little LCP is beneficial for strengthening and reinforcing PP/LCP blends. Compared with pure PP, the impact strength and tensile strength of PP/LCP(100/10) is increased by 21.3% and 5.4%, respectively. With the addition of LCP, the melt temperature of PP component is increased while its crystallinity decreased. Compared with PP/LCP(100/10) blend, the addition of PP-g-MAH, increases the tensile strength and impact strength of PP/LCP/PP-g-MAH(100/10/3) blend. SEM photos showed that, with the addition of LCP component the preferred orientation structure is formed for PP/LCP blends, and the preferred orientation of LCP microfiber is formed with the addition of PP-g-MAH, which are beneficial for enhancing article’s over-all properties.
