A kind of elastic fiber of cross-linked polyolefin elastomer composition and its manufacturing method
A technology of elastic fiber and manufacturing method, which is applied in the field of manufacturing elastic fiber of polyolefin elastomer composition, and can solve problems such as increasing production cost, reducing production efficiency, and inconvenient large-scale production of elastic fiber
Active Publication Date: 2021-09-07
ZHUJI HUAHAI SPANDEX +3
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Problems solved by technology
It must be pointed out that the limitation of the ambient atmosphere of radiation crosslinking will cause great inconvenience to the large-scale production of the elastic fiber, increase the production cost and reduce the production efficiency
But at the same time, according to reference samples 1 and 2 in Table 1 of this patent, even if antioxidants and / or high levels of radiation doses are added, fibers made by irradiating fibers in air still do not have sufficient resistance. Heat resistance to pass dyeing and heat setting tests
Method used
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[0071] The present invention will be further described in detail through the following examples.
[0072] The components shown in Table 1 were added to a mixer for mixing, and then sent to a twin-screw extruder for mixing, thereby producing 2 kg of polyolefin composition pellets.
[0073] Melt flow rate MFR:
[0074] According to GB / T3682-2000 "Determination of Melt Flow Rate and Melt Volume Flow Rate of Thermoplastics", the melt flow rate MFR (190 ° C / 2.16kg). The results are shown in Table 1.
[0075]Table 1 Composition and content of polyolefin composition
[0076]
[0077] Note:
[0078] 1) Ethylene-octene copolymer, POE-8200, supplier Dow Chemical, melt index (190°C / 2.16kg): 5.0, density: 0.870g / cm 3 ;
[0079] 2) Ethylene-octene copolymer, POE-8150, supplier Dow Chemical, melt index (190°C / 2.16kg): 0.5, density: 0.868g / cm 3 ;
[0080] 3) Propylene-ethylene copolymer: VISTAMAXX-6102, ExxonMobil, MFR (190°C / 2.16kg): 1.3, density: 0.862g / cm 3 , Ethylene monome...
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Abstract
The present invention provides a method for producing cross-linked polyolefin elastic fibers, comprising the following steps: a) providing a polyolefin composition by blending, which comprises at least one ethylene copolymer A, and at least one propylene copolymer object B; b) spinning the polyolefin composition to obtain elastic fibers; c) directly performing radiation crosslinking on the obtained elastic fibers in air, wherein the ethylene copolymer A is composed of ethylene and at least one It is formed by copolymerization of C4‑C20 olefins, and its density is 0.855~0.900g / cm 3 , the melt index (190°C / 2.16kg) is 1-10g / 10min; the density of the propylene copolymer B is 0.855-0.900g / cm 3 , the melt index (230°C / 2.16kg) is 0.1-30g / 10min, and the weight ratio of the ethylene copolymer A to the propylene copolymer B is 5:95-95:5.
Description
technical field [0001] The invention relates to a method for manufacturing elastic fibers of a cross-linked polyolefin elastomer composition; a polyolefin elastic fiber made by the manufacturing method; and an application of the polyolefin elastic fiber in the field of clothing. Background technique [0002] Polyolefin fiber is a kind of synthetic fiber, which is obtained by spinning alone or copolymerizing olefins such as ethylene and propylene, and generally has excellent mechanical and chemical properties, high strength and good wear resistance. The fiber also has strong light resistance and weather resistance. Polyolefin fibers are hydrophobic (only 0.1% moisture regain), wipe off stains easily, and are water washable and dry cleanable. Although this fiber is hydrophobic, it has excellent wicking action at very fine thicknesses and also has excellent resilience properties. Due to the low softening point of this fiber, it must be ironed at low temperature (about 65°C), ...
Claims
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IPC IPC(8): D01F8/06D06M10/00D02G3/04
Inventor 彭宏施楣梧杜春树蔡华峻
Owner ZHUJI HUAHAI SPANDEX