Heat-sealing easy-to-repeatedly tear PE film and preparation method thereof
A hot-melt adhesive and intermediate layer technology, which is applied in chemical instruments and methods, adhesive additives, layered products, etc., can solve the problems of difficult sealing and preservation of products, heat-sealed edges that cannot be peeled off, etc., and achieve good impact resistance Intensity, high softness, smooth effect
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[0032] Example 1: A heat-sealed repeated easy-to-peel PE film, comprising an inner layer, a middle layer and a surface layer stacked in sequence. The inner layer includes the following components by weight: 1.5 parts of melt index is 2g / 10min, and the density is 0.926g / cm 3 LDPE, 3 parts melt index is 2g / 10min, density is 0.921g / cm 3 LLDPE, 3 parts melt index is 2g / 10min, density is 0.905g / cm 3 The metallocene LLPDE and 0.08 parts of PPA masterbatch, the intermediate layer includes the first material of the intermediate layer and the second material of the intermediate layer, the first material of the intermediate layer includes 10 parts by weight, the melt index is 4g / 10min, and the density is 0.920g / cm 3 The second material of the middle layer includes 3 parts by weight of styrene-ethylene-styrene block copolymer, 1.5 parts of rosin resin, 1.5 parts of acrylonitrile-butadiene-styrene copolymer, and the surface layer Including the following components by weight: 1.5 parts of me...
Example Embodiment
[0041] Example 2: A heat-sealed and repeated easy-to-peel PE film, comprising an inner layer, a middle layer and a surface layer stacked in sequence. The inner layer includes the following components by weight: 1.8 parts of melt index is 2g / 10min, and the density is 0.926g / cm 3 LDPE, 3.6 parts melt index is 2g / 10min, density is 0.921g / cm 3 LLDPE, 3.6 parts melt index is 2g / 10min, density is 0.905g / cm 3 The metallocene LLPDE and 0.08 parts of PPA masterbatch, the intermediate layer includes the first material of the intermediate layer and the second material of the intermediate layer, the first material of the intermediate layer includes 10 parts by weight, the melt index is 4g / 10min, and the density is 0.920g / cm 3 The second material of the middle layer includes 4 parts by weight of styrene-ethylene-styrene block copolymer, 2 parts of rosin resin, 2 parts of acrylonitrile-butadiene-styrene copolymer, and the surface layer Including components including the following parts by wei...
Example Embodiment
[0050] Example 3: A heat-sealed and repeated easy-to-peel PE film, comprising an inner layer, a middle layer and a surface layer stacked in sequence. The inner layer includes the following components by weight: 2 parts melt index is 2g / 10min, and the density is 0.926g / cm 3 LDPE, 4 parts melt index is 2g / 10min, density is 0.921g / cm 3 LLDPE, 4 parts melt index is 2g / 10min, density is 0.905g / cm 3 The metallocene LLPDE and 0.08 parts of PPA masterbatch, the intermediate layer includes the first material of the intermediate layer and the second material of the intermediate layer, the first material of the intermediate layer includes 10 parts by weight, the melt index is 4g / 10min, and the density is 0.920g / cm 3 The second material of the middle layer includes 4.5 parts by weight of styrene-ethylene-styrene block copolymer, 2.25 parts of rosin resin, 2.25 parts of acrylonitrile-butadiene-styrene copolymer, and the surface layer Including the following parts by weight: 2 parts melt inde...
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