Preparation of fibre beam for polypropylene cigarette containing water-soluble high polymer
A water-soluble high polymer and polypropylene technology, applied in the direction of conjugated synthetic polymer artificial filament, tobacco, application, etc., can solve the problems of difficult cutting, limited performance improvement, poor adsorption performance, etc.
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[0026] A partially water-soluble polypropylene tobacco tow made of water-soluble high polymer A, matting agent B, coupling agent C, rheology modifier D and a small amount of polypropylene PP, wherein the water-soluble high polymer A is poly Vinyl alcohol PVA and polyethylene glycol PEG, the mixing ratio is: PVA: PEG = 1: 0.5; matting agent B is TiO 2 ; Coupling agent C is titanate; rheology modifier D is ethylene vinyl acetate copolymer.
[0027] When preparing, first mix A, B, C, D, and PP according to the ratio of A:B:C:D:PP=30:20:0.5:10:39.5, and use a twin-screw extruder at a temperature of 200°C Modified masterbatches are prepared. Then, the ratio of modified masterbatch: PP=4:96 is blended with PP at a temperature of 225°C for spinning, the spinning spinneret is an annular plate with 11000 holes, the spinneret holes are trilobal, and the temperature of the ring blowing is 18 °C, the post-stretching temperature is 80 °C, the post-drawing ratio is 2.85 times, and the tow...
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