Formula and production method of BOPP (Biaxially-oriented Polypropylene) film

The invention discloses a BOPP (biaxially-oriented polypropylene) film formula and a preparation method thereof, and aims to improve antifogging, antistatic and smooth properties and comprehensive mechanical properties. The formula is an optimized combination of 82%-91% of polypropylene resin, 5%-9% of high-density polyethylene, 3%-7% of modified polypropylene, 1%-2% of an antifogging agent, 0.1%-0.3% of a slipping agent and 1.2%-1.8% of an antistatic agent. The preparation method comprises the steps of raw material drying, extrusion hot melting, precise filtering, two-way stretching, surface treatment and the like. The BOPP film disclosed by the invention is suitable for multiple fields, such as high-end packaging and printing materials, provides better transparency, stronger mechanical property and processing convenience, and meets the requirements of the market on high-quality films. 本发明公开了一种BOPP膜配方及其制备方法，旨在提升防雾、抗静电、爽滑性能及综合力学性质。配方为：聚丙烯树脂82％-91％，高密度聚乙烯5％-9％，改性聚丙烯3％-7％，防雾剂1％-2％，爽滑剂0.1％-0.3％，抗静电剂1.2％-1.8％的优化组