{"id":916,"date":"2024-02-04T13:36:23","date_gmt":"2024-02-04T05:36:23","guid":{"rendered":"https:\/\/www.joyforce.com\/?p=916"},"modified":"2024-02-05T13:32:55","modified_gmt":"2024-02-05T05:32:55","slug":"the-preparation-process-of-hydroxyethyl-cellulose","status":"publish","type":"post","link":"https:\/\/www.joyforce.com\/zh\/blogs\/the-preparation-process-of-hydroxyethyl-cellulose.html","title":{"rendered":"\u7f9f\u4e59\u57fa\u7ea4\u7ef4\u7d20\u7684\u5236\u5907\u5de5\u827a"},"content":{"rendered":"<p style=\"font-weight: 400;\">Alkali cellulose is a natural macromolecule. Each fiber-based ring contains three hydroxyl groups. The most active hydroxyl groups react to form hydroxyethyl cellulose. Soak raw cotton linters or refined pulp in 30% liquid caustic soda, take out and press after half an hour. Squeeze until the ratio of alkaline water reaches 1:2.8, and then pulverize. The crushed alkali cellulose is put into the reaction kettle, sealed, vacuumed, filled with nitrogen, and the air in the kettle is completely replaced by repeated vacuuming and nitrogen filling. Press into the pre-cooled ethylene oxide liquid, pass cooling water into the jacket of the reactor, and control the reaction at about 25\u00b0C for 2 hours to obtain crude hydroxyethyl cellulose. The crude product was washed with alcohol, neutralized with acetic acid to pH 4-6, and then cross-linked with glyoxal for aging. Then it is washed with water, centrifuged, dried, and ground to obtain hydroxyethyl cellulose.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-918\" src=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-7.png\" alt=\"\" width=\"567\" height=\"378\" srcset=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-7.png 567w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-7-300x200.png 300w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/1-7-18x12.png 18w\" sizes=\"(max-width: 567px) 100vw, 567px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>\u78b1\u7ea4\u7ef4\u7d20\u662f\u4e00\u79cd\u5929\u7136\u5927\u5206\u5b50\u3002\u6bcf\u4e2a\u7ea4\u7ef4\u73af\u542b\u6709\u4e09\u4e2a\u7f9f\u57fa\u3002\u6700\u6d3b\u8dc3\u7684\u7f9f\u57fa\u53cd\u5e94\u751f\u6210\u7f9f\u4e59\u57fa\u7ea4\u7ef4\u7d20\u3002\u5c06\u539f\u68c9\u7eb1\u6216\u7cbe\u5236\u7eb8\u6d46\u6d78\u6ce1\u5728 30% \u70e7\u78b1\u6db2\u4e2d\uff0c\u534a\u5c0f\u65f6\u540e\u53d6\u51fa\u5e76\u538b\u69a8\u3002\u6324\u538b\u81f3\u78b1\u6c34\u6bd4\u4f8b\u8fbe\u5230 1:2.8\uff0c\u7136\u540e\u7c89\u788e\u3002[...]<\/p>","protected":false},"author":1,"featured_media":918,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The preparation process of hydroxyethyl cellulose - JOYFORCE INDUSTRIAL<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.joyforce.com\/zh\/blogs\/the-preparation-process-of-hydroxyethyl-cellulose.html\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The preparation process of hydroxyethyl cellulose - JOYFORCE INDUSTRIAL\" \/>\n<meta property=\"og:description\" content=\"Alkali cellulose is a natural macromolecule. Each fiber-based ring contains three hydroxyl groups. The most active hydroxyl groups react to form hydroxyethyl cellulose. Soak raw cotton linters or refined pulp in 30% liquid caustic soda, take out and press after half an hour. Squeeze until the ratio of alkaline water reaches 1:2.8, and then pulverize. 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