Compound packing strap and production technology
A technology of coating and mixing materials, applied in packaging, transportation and packaging, flexible and elongated components, etc., can solve the problems of short service life, low tensile strength, and damage to goods by loose packaging, and achieve long service life and strength. high effect
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Embodiment 1
[0025] The compound comprises 99%-100% by weight of polypropylene, 0-10% by weight of antioxidant and 0-10% by weight of anti-ultraviolet agent. Of course, the mixture may also include polyethylene in an amount of 0-20% by weight. Specifically, it includes 99% by weight of polypropylene, 5% by weight of antioxidant and 5% by weight of anti-ultraviolet agent. Of course, the fiber filaments can also be twisted.
Embodiment 2
[0027] In the composite strapping belt of the present invention, the compound comprises 40% to 98% by weight of polypropylene, 0 to 20% by weight of polyethylene, and 1 to 40% by weight of polyolefin elastomer , 0-10‰ antioxidant and 0-10‰ anti-ultraviolet agent. Specifically, it includes 69% by weight of polypropylene, 10% by weight of polyethylene, 20% by weight of polyolefin elastomer, 5% by weight of antioxidant and 5% by weight of antioxidant. 5‰ anti-ultraviolet agent. Of course, the fiber filaments can also be twisted.
[0028] Such as figure 1 Shown, the production technology of composite packing belt of the present invention may further comprise the steps:
[0029] 1). Add the mixture to the extruder 1 to melt, and at the same time pass the fiber filament 2 through the mold 3;
[0030] 2). Extrude the melted mixture in the extruder 1 and the fiber filament 2 through the mold 3 to form a composite packing belt 4;
[0031] 3). The composite packing belt 4 is cooled...
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