Flame retardant and drip-preventing polypropylene composition as pulling filament with improved softness
A technology of polypropylene resin and polyethylene resin, which is applied in the direction of single-component polypropylene artificial filament, physical therapy, and equipment using electric current, etc., and can solve the problem of hard drawing wire
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Embodiment 1
[0029] 100 parts by weight of a homopolypropylene (PP) resin with a melt index (D1238) of 2.0 g / 10 minutes as the base resin, and 20 parts by weight of polyethylene with a melt index (D1238) of 2.0 g / 10 minutes as an additional resin ( PE) resin, 100 parts by weight of calcium carbonate (CaCO 3 ), 10 parts by weight of solvent and common additives were stirred and mixed for 5 minutes. Table 1 shows the main components and the like contained in the resin compositions produced in this embodiment and all of the following Examples and Comparative Examples, etc., and their composition ratios.
[0030] The resulting mixture was melted and extruded using a common extruder to produce pellets, and the physical properties were measured. Table 2 shows the results. Tensile strength (tensile load) and elongation rate are measured by the test method of KS M3001-96, and the flame retardancy is measured by the test method of KS M3030-95 (flame retardancy: 2 grades - excellent, 3 grades - goo...
Embodiment 2
[0033] Except for using 20 parts by weight of ethylene-vinyl acetate (EVA) copolymer resin having a vinyl acetate content of 15% by weight as an additional resin, after stirring and mixing the same components as in Example 1, the resulting mixture was mixed with The pellets were melted and extruded under the same conditions as in Example 1, and their physical properties were measured. The results are shown in Table 2 below. In addition, after producing drawn yarns from the pellets of the obtained resin composition by the same method as in Example 1, the softness of the produced drawn yarns was measured by the same method as in Example 1. The results of the measurement are shown in Table 2 below.
Embodiment 3
[0035] Except for using 20 parts by weight of an ethylene-methyl acrylate (EMA) copolymer resin having an acrylate content of 18% by weight as an additional resin, the same ingredients as in Example 1 were stirred and mixed, and the resulting mixture was used in the same manner as in Example 1. The pellets were melted and extruded under the same conditions as in Example 1, and their physical properties were measured. The results are shown in Table 2 below. In addition, after producing drawn yarns from the pellets of the obtained resin composition by the same method as in Example 1, the softness of the produced drawn yarns was measured by the same method as in Example 1. The results of the measurement are shown in Table 2 below.
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