Polypropylene composite material containing coffee grounds and preparation method thereof

The invention relates to the technical field of environment-friendly composite materials, in particular to a polypropylene composite material containing coffee grounds and a preparation method thereof.The polypropylene composite material is prepared from, by weight, 55-80 parts of polypropylene, 10-25 parts of modified coffee grounds, 2-5 parts of compatilizer, 4-7 parts of antibacterial mildew-proof master batch, 4-15 parts of reinforcing agent and 0.1-0.5 part of antioxidant. The prepared polypropylene composite material containing coffee grounds has excellent mechanical strength and antibacterial and mildew-proof performance, and can be widely applied to daily life such as packaging, tableware, consumer goods, stationery, toys and the like. 本发明涉及环保复合材料技术领域，特别是涉及一种含咖啡渣的聚丙烯复合材料及其制备方法，包括以下重量份的原料：聚丙烯55-80份，改性咖啡渣10-25份，相容剂2-5份，抗菌防霉母粒4-7份，增强剂4-15份，抗氧剂0.1-0.5份。本发明制得的含咖啡渣的聚丙烯复合材料，具有优异力学强度和抗菌防霉性能，可广泛应用于包装、餐具、消费品、文具、玩具等日常生活中。