Novel PPS washing and purifying process
The invention relates to a novel PPS (polyphenylene sulfide) washing and purifying process, which comprises the following steps: 1) taking quantitative polyphenylene sulfide, namely pps, in a beaker, adding a certain amount of water and NMP (N-Methyl Pyrrolidone) according to a proportion, stirring...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
08.09.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a novel PPS (polyphenylene sulfide) washing and purifying process, which comprises the following steps: 1) taking quantitative polyphenylene sulfide, namely pps, in a beaker, adding a certain amount of water and NMP (N-Methyl Pyrrolidone) according to a proportion, stirring and washing by using an electric stirrer for 15 minutes, filtering by using a 200-mesh screen after washing, and keeping a solid phase for later use; (2) adding the filtered PPS into a beaker, adding quantitative deionized water according to the mass ratio of 1: 5, stirring and washing by using an electric stirrer for 15 minutes, and filtering by using a 200-mesh screen after washing to obtain a solid phase for later use; (3) adding the filtered PPS into a beaker, adding quantitative deionized water according to the mass ratio of 1: 5, stirring and washing by using an electric stirrer for 15 minutes, filtering by using a 200-mesh screen after washing, and drying a solid phase in a vacuum drying oven for later use; |
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Bibliography: | Application Number: CN202310058141 |