Polypropylene acid resistance, alkali resistance, corrosion resistance, organic solvent of high strength, high melting point, particularly suitable for the preparation of hot filling packing material,
Composite membrane, stiff packaging, used for packaging, butter, yogurt, tomato sauce, such as food, also can produce medicine packaging, PP is also used in auto parts, consumer goods such as packaging.
The application of polypropylene
According to statistics, in 2011 the global PP production capacity of 64.22 million t, consuming about 52.05 million t, the average annual growth of 4.4% (table
3-14), of which the packaging material is a main field of application of PP consumption accounts for about 20% of the total consumption.
Whether food flexible packaging or rigid package, as a kind of PP are the main raw material.Today, about consumption each year around the world
410 billion L non-carbonated class food and beverage, 60% of whom are not sensitive to oxygen, this part of the drink can be used in PP
As the raw material preparation of rigid package form.With PP as raw material to produce rigid package according to Pira accounted for about 20% of the total rigid package.Flexible packaging of PP was processed into BOPP, CPP, used in dry compound preparation of multi-layer composite flexible packaging materials, multi-layer co-extrusion process, of course, also can take composite membrane.According to statistics, multi-layer composite technology used in PP film content accounted for about 33% of the flexible packaging quality;In the form of resin used 70/0 of the PP resin in the form of total amount;Total resin and thin film form, accounts for about 17% of PP in flexible packaging materials.