Special material for irradiation-resistant sterilizing polypropylene spun-bonded non-woven fabric and preparation method of special material
The invention belongs to the technical field of synthetic resin production, and particularly relates to a special material for an irradiation-resistant sterilizing polypropylene spun-bonded non-woven fabric and a preparation method of the special material. The preparation method specifically compris...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention belongs to the technical field of synthetic resin production, and particularly relates to a special material for an irradiation-resistant sterilizing polypropylene spun-bonded non-woven fabric and a preparation method of the special material. The preparation method specifically comprises the following steps: (1) on-line mixing of basic polypropylene powder, peroxide and additives; (2) controllable rheological reaction in a barrel of an extruder; (3) extrusion pelletizing and centrifugal drying; and (4) air conveying, product homogenization, packaging and delivery. According to the invention, a one-time hot working process is utilized, direct contact with oxygen in the processes of mixing and preparation is avoided, reduction in mechanical performance and optical performance caused by the hot working process is reduced, additional addition of an elastomer for toughening is not needed, and production cost is low. The produced special material provided by the invention can provide protection for po |
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