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Sea-island polyphenylene sulfide superfine fiber and preparation method thereof

A technology of polyphenylene sulfide and ultrafine fiber, which is applied in the field of fiber manufacturing, can solve the problems of fiber size (diameter, uncontrollable length, high toxicity of organic solvents, poor mechanical properties, etc.), so as to improve spinnability and reduce spinning The effect of silk temperature and good hand feeling

Active Publication Date: 2021-07-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is simple, and the diameter of the prepared fiber is 20-400nm, but its spinnability is poor, the production efficiency is low, the fiber size (diameter, length) is uncontrollable, and the mechanical properties are not good. Organic solvents, organic solvents are highly toxic and will cause harm to personnel

Method used

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  • Sea-island polyphenylene sulfide superfine fiber and preparation method thereof
  • Sea-island polyphenylene sulfide superfine fiber and preparation method thereof
  • Sea-island polyphenylene sulfide superfine fiber and preparation method thereof

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Embodiment 1-6

[0028] The present invention will be further described below in conjunction with the examples. The present invention uses three kinds of polyphenylene sulfides. In order to show the difference, they are represented by polyphenylene sulfide A, polyphenylene sulfide B and polyphenylene sulfide C respectively, "A" , "B" and "C" have no actual technical meaning, and those skilled in the art should understand that the present invention is not limited to the following examples, and any improvements and equivalent changes made on the basis of the specific examples of the present invention are within Within the scope of the claims of the present invention. The preparation method of embodiment 1-6 sea-island type polyphenylene sulfide superfine fiber

[0029] Examples 1-6 are respectively a preparation method of sea-island polyphenylene sulfide ultrafine fibers, and the process parameters in the preparation process are shown in Table 1. The specific preparation process includes the fol...

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Abstract

The invention belongs to the technical field of fiber manufacturing, and discloses sea-island polyphenylene sulfide superfine fiber and a preparation method thereof. The method comprises the steps of performing melt blending granulation on polyphenylene sulfide A, polyphenylene sulfide B and polyphenylene sulfide C to obtain polyphenylene sulfide particles; mixing the polyphenylene sulfide particles with alkali-soluble polyester, carrying out melt spinning, carrying out heat setting, and performing drafting to obtain composite sea-island fiber of polyphenylene sulfide and polyester; and adding a sodium hydroxide solution into the composite sea-island fiber, and dissolving the alkali-soluble polyester to obtain the sea-island polyphenylene sulfide superfine fiber. The method is simple to operate, the spinnability and safety are improved, no organic solvent pollution is caused, and the prepared sea-island type polyphenylene sulfide superfine fiber has excellent properties such as good hand feeling, heat stability, chemical corrosion resistance and high strength. The preparation method disclosed by the invention is suitable for preparing the sea-island type polyphenylene sulfide superfine fiber, and the prepared sea-island type polyphenylene sulfide superfine fiber is suitable for preparing a battery diaphragm.

Description

technical field [0001] The invention belongs to the technical field of fiber manufacture, and relates to polyphenylene sulfide, in particular to a sea-island type polyphenylene sulfide superfine fiber and a preparation method thereof. Background technique [0002] Polyphenylene sulfide (PPS) is a polymer containing repeating structural units of p-phenylene sulfide in the molecule. It is a new type of functional engineering plastic with good heat resistance, excellent chemical resistance and flame retardancy. sex. It can be widely used in high-temperature filtration, special protective clothing, thermal insulation materials, battery separators and other fields. Microfiber has excellent characteristics such as strong adsorption capacity, softness, high strength, and good filterability. PPS superfine fiber combines the characteristics of PPS and superfine fiber, and has great market prospects. [0003] The sea-island composite spinning method is a main method for preparing u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/16
CPCD01F8/16Y02P70/62
Inventor 朱美芳余严胡泽旭朱丽萍相恒学侯恺周家良
Owner DONGHUA UNIV
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