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在三层共挤流延聚丙烯薄膜的热封层树脂中共混入聚烯烃弹性体(POE)树脂,制备了医用灭菌纸/塑热封流延聚丙烯(CPP)薄膜。采用热封仪、微控电子拉力机、雾度仪对所研制的CPP薄膜性能进行研究,结果表明:在热封层树脂中加入20%POE树脂所生产的医用灭菌纸/塑热封CPP薄膜与纸热封强度达到3.15N/15mm,直角撕裂强度155N/mm,雾度值为3.58%,可用于生产优质的医用灭菌纸/塑热封的复合膜。
The POE resin was blended into the heat seal layer resin of the three-layer co-extruded cast polypropylene film to prepare the medical sterilized paper / plastic coated polypropylene (CPP) film. The performance of the developed CPP film was studied by means of heat sealing device, microelectronic tensile machine and haze meter. The results showed that the medical sterilized paper / plastic heat seal CPP produced by adding 20% POE resin in the heat seal layer resin Film and paper heat seal strength of 3.15N / 15mm, right angle tear strength of 155N / mm, haze value of 3.58%, can be used to produce high quality medical sterilization paper / plastic heat sealing compound film.