PC film is also known as polycarbonate film, is in the molecular chain polymers containing carbonate base, according to the structure of the ester base can be divided into aliphatic, aromatic, aliphatic -
A variety of types such as aromatic.
Because of the aliphatic and aliphatic -
On the mechanical properties of the aromatic polycarbonate is low, thereby limiting its applications in the field of engineering plastics.
There are only aromatic polycarbonate won the industrialized production.
Due to the particularity of polycarbonate structure, has become the fastest growing in the five engineering plastics of general engineering plastics.
Generalization performance 1 PC film, its impact resistance performance, high bending strength, good tensile strength.
2, puncture resistant performance is good, and good resistance to temperature, temperature had little effects on the mechanical properties, chemical properties, can be use for a long time under 60 ~ 120 ℃.
4, the melt viscosity of resin, and can be used for packaging of 5, good weatherability, heat sealing layer can withstand oil, acid, light stability 6, but not resistant to ultraviolet light, long-term contact with water is easy to decompose, especially of 7 under high temperature, fatigue resistance is poor, especially after folded in half, prone to stress cracking PC film application in packaging 1, through the way of combined PC film, increasing resistance to impact of the packaging bags, puncture resistance, in nuts packaging bags, vacuum bags, etc all can compound (PC).
2, the PC film as the heat sealing layer, good melt viscous force, can provide good heat sealing strength for packaging bags, mainly as a heat sealing layer of automatic packaging film.
3, more meat and oil in the
food packaging bags, add a layer of PC film, can promote the oil resistance of the PC film in the packaging application packet defects 1, PC film as the heat sealing layer, is no guarantee air tightness.
Due to poor fatigue resistance of PC's, especially after the folded in half, and is easy to appear stress cracking phenomenon, resulting in poor air tightness.
So PC film is not suitable for as a harmonica bag or finished bag heat sealing layer, because the finished bag, in the process of storage, transportation, filling, bag will pressure, pulling force, such as poor fatigue resistance of the PC film is likely to happen at this time cracking.
2, the general should not be used in liquid packaging, because the PC long-term contact with water, easy to decompose.
Can make the barrier property of the packaging bags, product deterioration, and even liquid will permeate outside packing bag.
3, should not be used in the packing bag of cooking disinfection, PC in high temperature water, decomposition of aging faster.
When boiling disinfection, barrier property of the packaging bags, unable to effectively protect the product.
The point for Kolysen Packaging Integration Co.,LTD. is that managerial processes are as important as other inputs in production and can create significant competitive advantage.
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