“…Some drawbacks, however, such as low‐temperature brittleness, low modulus, and large shrinkage ratios have limited its applications in high‐performance engineering areas 7–10. To overcome these limitations, scientists have developed a number of methods to modify PP‐matrix composites 11–14. Microsized inorganic fillers, including talc, wollastonite, calcium carbonate, barium sulfate, carbon black, magnesium hydroxide, hydroxyapatite, glass beads, montmorillonite, and aluminum, have been applied not only to lower the material costs but also to enhance the moduli and toughnesses of PP‐matrix materials and reduce their shrinkage rates of forming 6, 13, 15–23.…”