Nano ceramic composite thin polypropylene multifunctional fiber and preparing method

Abstract

The invention discloses nano-ceramic composite fine polypropylene fiber and the processing method. The fiber contains nano-ceramic powder with 12-45 of 300, polypropylene with 250-270 of 300, polyethylene wax with 2-18 of 300 by weight. The denier of the fiber monofilament is 0.5-1.5D, the breaking strength is more than 2.5cN / dtex. We can get the fiber by the step of nano-ceramic powder aqueous dispersion, pre-dispersed precursor, composite masterbatch, composite sections, and high-speed spinning. The nano-ceramic powder is made up of ZrO2, or ZrO2 and ZrC, or TiO2 and Ag+. This type of fiber can be made of various type of textiles, such as sports apparel, underwear, bedding, shirt, socks and so on. The textiles with the function of launch biological waves of energy, anti-UV, anti-bacterial, absorption and barrier the near-infrared. So that to make the textiles have the function of anti-bacterial, energy health, insulation sunscreen, regenerative thermal insulation, dry and comfortable and so on.

Description

technical field [0001] The invention relates to a multifunctional fiber and a manufacturing method thereof, in particular to a nano-ceramic composite fine-denier polypropylene multifunctional fiber and its manufacturing method and application, belonging to the technical field of new textile materials. Background technique [0002] Nano-ceramic materials refer to nano-materials whose grain size is between 1 and 100nm and whose chemical composition belongs to inorganic non-metallic materials. Nano-ceramic powder is the most basic nano-ceramic material. The nano-ceramic composite functional fiber made by compounding and doping nano-ceramic powder with special properties and other polymer materials not only has the conventional properties of ordinary fibers, but also has the special functional properties of nano-ceramic materials. [0003] At present, there are mainly three ways to theoretically manufacture nano-ceramic composite functional fibers: (1) Coating method, which is t...

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Problems solved by technology

[0003] At present, there are mainly three ways to theoretically manufacture nano-ceramic composite functional fibers: (1) Coating method, which is to coat the fiber surface with a binder containing nano-ceramic powder. The adhesion and stability of ceramic powder on the fiber surface, especially the comfort of fiber products and the durability of repeated washing

(2) The composite fiber masterbatch method is to blend nano-ceramic powder and organic polymer to form a composite fiber masterbatch, and then mix it with spinning raw materials in a certain proportion for spinning. The process, technology and fiber quality of this method are operable The key is how to effectively disperse the nano-ceramic powder in the masterbatch in the state of nano-particles, which is technically difficult, and no specific and effective method has been found so far.

(3) Synthetic fiber masterbatch method is to carry out the in-situ synthesis of fiber raw materials in the presence of nanopowders to form fiber macromolecules coated with nanoparticles to form nanocomposite fiber masterbatch, and then use the same method as (2) Spinning, the key to this method is that the technology, process and equipment requirements of synthetic fiber masterbatch are very complicated and difficult, and the cost is relatively high. In addition, it is to obtain the special function of the fiber without losing the fiber texture and feel. At present, There is no ideal solution

At present, ordinary fine-denier polypropylene fiber technology has been widely used, but there is no mature and reliable application technology for multi-functional fine-denier polypropylene fiber. The fineness, especially the particle dispersion must also be very small, otherwise it is difficult to guarantee the conventional properties of the fiber, the amount of functional components added and the functionality, especially the spinnability and post-processing of the fiber are difficult to meet the requirements of mass production

Although Chinese Invention Patent Publication No. CN1310250A discloses a production method of far-infrared fine-denier polypropylene filaments, it is to modify and granulate far-infrared ceramic powder masterbatch and polypropylene slices to make slices, and adopt high-speed spinning to produce 1 ~ 2.5dtex ( 1D≈1.1dtex) fine-denier polypropylene filaments, but this method only provides fiber spinning production methods, and the particle size of the ceramic powder used in the masterbatch is 0.3~1.2μm, which is not a nano-ceramic material, much larger than the nano-material and less than 100nm ( 0.1μm) nanoscale requirements; in this production method, there are no specific measures and instructions for the content and dispersion of ceramic powder that mainly affect the performance of functional fibers. Therefore, how to implement the addition of sufficient ceramic powder to meet the functional requirements of fibers , and to ensure the spinnability of the fiber, and to avoid problems such as the wear of the weaving equipment due to the existence of large particles on the fiber surface, there are serious technical limitations and uncertain factors

[0007] To sum up, how to find nano-ceramic functional materials with multiple functions, simple components and easy control, and use economical and effective nano-ceramic dispersion methods to uniformly disperse nano-ceramic particles into appropriate fiber polymers to make a Nano-composite multifunctional fibers can endow fiber textiles with multifunctional properties such as hygiene, health care, protection, dryness and comfort. At present, there is no ideal feasible technology and corresponding products

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