Method for producing skin-core structural micro-wave screening functional fibre by melt direct spinning

A technology of functional fiber and skin-core structure, which is applied in fiber processing, textiles and papermaking, and single-component polyester rayon. It can solve the problems of uneven physical and chemical properties of products, difficult process control, and long production process. To achieve the effect of facilitating industrial promotion and application, solving the problem of poor fine-tuning of the process, and easy operation

Inactive Publication Date: 2008-06-25
SHENGHONG GRP CO LTD
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  • Description
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Problems solved by technology

The twin-screw method and sea-island composite method have a long production process, complex procedures, difficult process control, and uneven physical and chemical properties of the product

Method used

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  • Method for producing skin-core structural micro-wave screening functional fibre by melt direct spinning

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Embodiment Construction

[0017] Provide 1 concrete implementation example of the present invention below:

[0018] Take 76 parts of PET slices with a melt index of 50, 5 parts of copper powder with an average particle size of 40nm, 4 parts of γ-methylacrylphthaleinoxytrimethoxysilane, and 6 parts of barium ferrite magnetic powder with an average particle size of 38nm , 9 parts of isopropyl tris(dodecylbenzenesulfonate)ferrate with an average particle size of 1 μm, after being fully mixed, the fiber skin melt was produced by twin-screw extrusion at 190°C; The sheath-core volume ratio is 2:8, and the microwave-shielding PET filament with sheath-core composite structure is produced by melt direct spinning.

[0019] It is determined that the microwave reflection attenuation rate of the obtained fiber is 10db, and the x-ray shielding rate can reach 79%.

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Abstract

The invention relates to a method for producing a microwave shielding function fiber with a skin-core structure by means of melt direct spinning, in particular to a production method for spinning production of the skin-core microwave shielding function fiber by adopting a direct spinning melt and a melt which is produced by a twin-screw to pass through a composite spinning tank and a skin-core composite component, wherein, the direct spinning melt is a sandwich layer; the compositions of skid-core by weight are 75 to 85 percent of core component and 15 to 25 percent of skin component; the compositions of cortical materials of the melt which is produced by the twin-screw by weight are 75 to 85 percent of cortical polymer, 5 to 8 percent of conductive nano powder, 4 to 7 percent of microwave absorbent, 3 to 9 percent of compatibilizer and 0.2 to 4 percent of coupling agent; sandwich layer material of the fiber is 100 percent polymer. The microwave shielding function fiber is produced by means of composite spinning through the composite spinning tank. The invention has the advantages of use of conventional equipment, simple technology, easy operation, low cost and convenience in industrialized promotion and application.

Description

technical field [0001] The invention relates to a functional chemical fiber manufacturing technology, in particular to a method for producing a skin-core structure microwave shielding functional fiber by melt direct spinning, and belongs to the technical field of chemical fiber. Background technique [0002] At present, there are many varieties of domestic functional fibers and their production methods, which can be summarized as follows: twin-screw chip spinning production technology; sea-island composite production technology, etc. Although these methods can also produce functional fibers with better properties, there are deficiencies. The twin-screw method and the sea-island composite method have a long production process, complex procedures, difficult process control, and uneven physical and chemical properties of the product. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/34D01F6/62D01F1/10
Inventor 辛婷芬
Owner SHENGHONG GRP CO LTD
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