High-temperature-resistant polyolefin hot melt adhesive and preparation method thereof

The invention provides a high-temperature-resistant polyolefin hot melt adhesive and a preparation method thereof. The high-temperature-resistant polyolefin hot melt adhesive is prepared from the following raw materials in parts by mass: 40 to 50 parts of polyolefin copolymer, 20 to 30 parts of hydrogenated petroleum resin, 20 to 35 parts of homopolymerized PP elastomer, 1 to 5 parts of antioxidant and 0 to 20 parts of filler, the prepared hot melt adhesive is low in density and good in thermal viscosity; the white, odorless and smokeless odor is milder, and a good working environment can be created; heat stability is good, yellowing is not prone to occurring after high-temperature heating, and carbide is not generated; the high and low temperature resistance is good; and the product applicability is wider. 本发明提供一种耐高温聚烯烃热熔胶及其制备方法，包括以下质量份原料：聚烯烃共聚物40～50份、氢化石油树脂20～30份、均聚PP弹性体20～35份、抗氧化剂1～5份和填料0～20份；本发明制备的热熔胶，低密度且热粘性佳；白色无味无烟气味更加温和，可创造良好的工作环境；热稳定性佳，高温加热不容易黄变，不产生碳化物；耐高低温性能佳；产品适用性更广。