Fibrillated fiber and method for preparing the same
AssigneeLG Chem, Ltd.
InventorsMinsung Park, Su Hee Lee, Nana Kang, Kwang Seoung Jeon
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Abstract
The present disclosure relates to fibrillated fibers and a method for preparing the same. In the present disclosure, there is provided a preparation method capable of providing fibers suitable for complexing with plastics in a more simplified process. According to the preparation method of the present disclosure, microfibers can be easily miniaturized with little energy by growing fine particles on the microfibers to fibrillate the microfibers, and then applying a shear force thereto, and various physical properties can be expressed from the grown fine particles.
Claims8
A method for preparing fibrillated fibers, the method comprising the steps of:
- preparing a mixture comprising microfibers, a fine particle precursor, and a solvent;
- fibrillating the microfibers by growing fine particles on the microfibers from the fine particle precursor by adding a reducing agent, a catalyst, a ligand or a mixture thereof to the mixture and then stirring;
- and
- miniaturizing the microfibers by applying a shear force to the microfibers fibrillated by the growth of the fine particles,
- wherein the microfibers are cellulose fibers,
- the microfibers fibrillated by the growth of the fine particles contain microcellulose fibers comprising nanofibrils and the fine particles,
- the nanofibrils are bonded to a surface of the microcellulose fibers, and the fine particles are bonded to the nanofibrils or bonded to a surface or inside of the microcellulose fibers, and
- the mixture comprises 40 to 100 parts by weight of the fine particle precursor and 1000 to 10000 parts by weight of the solvent based on 100 parts by weight of the microfibers,
- wherein in the step of preparing the mixture, the microfibers are added after dissolving the fine particle precursor in the solvent.
Dependencies are inferred from the claim text.