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Factors affecting the peel strength of resin
1, the influence of resin melt index (MI) on peel strength.
Melt index (MI) is a kind of index of resin fluidity. Generally speaking, the higher the melt index (MI) of the resin, the better the fluidity is, the lower the viscosity of the melt film is, and the larger the bonding force is. The melt index (MI) of the resin is too small, and its molecular weight is large, the fusion is poor, and can not be well bonded with the coated substrate, resulting in a decrease in peel fastness.
2, the influence of resin density on peel strength.
The smaller the density of the resin, the higher the content of the branched chain, the more easily the surface is activated, the greater the adhesion force, the better the peel strength.
3, the influence of the additives and moisture content on the peel strength.
The additives, especially lubricants, have a great influence on the peeling strength of the composite film

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