Preparation of fibre beam for polypropylene cigarette containing water-soluble high polymer
A water-soluble polymer, polypropylene technology, applied in the direction of conjugated synthetic polymer rayon, tobacco, application, etc., can solve the problems of loose fibers, inability, limited performance improvement, 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, 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. °C, the post-stretching temperature is 80 °C, the post-drawing ratio is 2.85 times, and the tow specification is 3.80ktex / 3.45dtex. Using this tow to process rods and mouthpieces is very smooth. The amount of rods (rod length 120mm...
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