Abstract
Abstract Polypropylene (PP) has the most extensive plastics of plastics because of the advantages of simplicity, easy processing, high mechanical properties, high corrosion resistance and abrasion resistance and electrical insulation. The application of PP has limitations in many fields because it is lack of formation shrinkage, low modulus, poor thermal stability, strong gap and low temperature and cracking. The addition of mineral fillers can not only improve their performance, not just the PP/mineral filler composite materials required, but also reduce the cost of the material. Therefore, in this paper, lamellar mica was selected as mineral filler to modify the surface of PP. The effects of titanate coupling agent and silane coupling agent modified mica, and their addition on the properties of PP were systematically studied. KH-570 modification increases the tensile strength, bending strength and modulus of the composites, while JN-114 and KH-570 can effectively improve the toughness and processability of PP composites. The interaction between modifier and mica was analyzed comprehensively by infrared spectroscopy (FTIR), and the effect mechanism of mica on the properties of PP was discussed by scanning electron microscope. The results show that different modified mica as mineral filler and PP can produce synergistic effect.
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