Method for fabricating nano long fiber

Abstract

The invention relates to a method for fabricating a nano long fiber. The method comprises the fabricating steps of cleaning the surface of an oyster shell, calcining the oyster shell into oyster shellashes and then grinding the oyster shell ashes into nano oyster shell powder; wrapping the surface of the nano oyster shell powder with a dispersant and a graft copolymer, mixing the nano oyster shell powder and first polyester for a long fiber evenly and then fabricating large granular masterbatches; and fusing the masterbatches and second polyester for the long fiber evenly and then stretchinga fusion into a nano long fiber by a long fiber fabricating machine. The fabricated nano long fiber with the nano oyster shell powder can be uniformly and continuously fabricated, a fiber pressing diehead with high fabrication cost does not block or damage fiber pressing holes, the service life of the fiber pressing die head can be effectively prolonged, and the cost of the fiber pressing die head is amortized into a plurality of nano long fibers, so that the nano long fiber has the effectiveness of reducing the fabrication cost and the fabricated nano long fiber has excellent characteristics.

Description

technical field [0001] The invention relates to a method for making nano long fibers, which belongs to the technical field of nano long fibers. Background technique [0002] A nano-short fiber 20 made of nano-oyster shell powder 10. The current production method of the nano-short fiber 20 is: clean the surface of the oyster shell 101 A0, dry B0 and calcinate C0 to form oyster shell ash 102, the oyster shell ash 102 is ground into nano oyster shell powder 10, the nano oyster shell powder 10 is put into a kneading tank 30 to fuse polyester 40, and then extruded and stretched into nano staple fiber 20 by fiber making machine 50 with fiber compression die 501 (Such as figure 1 shown). [0003] However, the nano oyster shell powder 10 has a large specific gravity and has the characteristics of stacking each other, so that the nano oyster shell powder 10 will settle or agglomerate to form larger particles (such as figure 1 , figure 2 shown). In addition, the fiber compressio...

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Problems solved by technology

[0004] However, the reason for this implementation is that the short nanofibers 20 are mainly because the diameter of the fiber press hole 502 is extremely small, and the nano oyster shell powder 10 accumulated into larger particles is just formed in the press hole 502 and extruded. When the polyester 40 is extruded, the nano oyster shell powder 10 that accumulates into larger particles due to sedimentation or agglomeration cannot be continuously broken into the nano short fiber 20 with a very short length. Therefore, the nano Staple fiber 20 is very intriguing under the benefit of use

In addition, the nano oyster shell powder 10 accumulated into larger particles will also block the fiber compression hole 502, and the fiber compression die head 501, which is quite expensive to manufacture, is blocked by the nano oyster shell powder 10 at the fiber compression hole 502 When, this fiber compression die head 501 promptly has scrapped, simultaneously, must change again this expensive this fiber compression die head 501 (as image 3 shown)

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