Polyarylene sulfide granule, preparation method and molded product thereof
A technology of polyarylene sulfide and molded products, which is applied in the field of fiber products and its preparation, material preparation or processing, and polyarylene sulfide products, and can solve the problem of unstable product performance, functional additives and polyarylene sulfide resin Uneven mixing and other problems, to achieve the effect of simple method and guaranteed stability
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no. 1 approach
[0067] In the first embodiment of the present invention, a polyarylene sulfide granulated material is provided. The granulated matter in the present invention may be in the form of granules or flakes, or may be a sheared product in a form between flakes or granules. The surface of the polyarylene sulfide granulated material of the present invention has a porous structure, and the particles / chips have functional additives on at least part of the surface of the porous structure. In some specific embodiments, the same functional adjuvant is substantially only present on the surface of the granulate.
[0068] polyarylene sulfide resin
[0069] The polyarylene sulfide resin described in the present invention can be used as a raw material for preparing the above-mentioned granules or slices, and there is no special limitation, and polyarylene sulfide resins commonly used as raw materials in the art can be used. These polyarylene sulfide resins are commercially available, and suc...
no. 2 approach
[0105] In the second embodiment of the present invention, a method for preparing polyarylene sulfide granules is provided, including:
[0106] Extrusion of polyarylene sulfide resins or compositions thereof,
[0107] The extruded polyarylene sulfide extrudate is pelletized to obtain pellets,
[0108] The condition is to have at least one of the following procedures:
[0109] a. contacting the polyarylene sulfide extrudate with a treatment liquid containing a functional additive, and then granulating the polyarylene sulfide extrudate to obtain a granulate,
[0110] or,
[0111] b. Granulating the extruded polyarylene sulfide extrudate, then contacting the granulated polyarylene sulfide with a treatment liquid containing a functional auxiliary agent to obtain a granulation,
[0112] The granulated matter includes granules and / or chips of polyarylene sulfide.
[0113] For the extrusion of the polyarylene sulfide resin or its composition, an extruder that generally processes p...
no. 3 approach
[0125] In a third embodiment of the present invention, there is provided a polyarylene sulfide molded article.
[0126] The polyarylene sulfide molded article is obtained by melt-processing and molding components including the above-mentioned polyarylene sulfide granulated product. The method of melting and molding is not particularly limited.
[0127] In some preferred embodiments, the molded article can be obtained by injection molding or spinning. The shaped article may comprise a tube, a sheet, a film or a fibre, preferably a fibre.
[0128] In a preferred embodiment of the invention, the shaped articles are preferably fibers. The inventors of the present invention have found that, compared to the situation in the prior art that the service life of polyarylene sulfide fibers is limited under high temperature and high corrosion conditions, the polyarylene sulfide particles / chips provided by the present invention are used to process polyarylene sulfide fibers. Arylene sul...
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Abstract
Description
Claims
Application Information
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