Focus on Cellulose ethers

Hydroxypropyl Methyl Cellulose Fermented

Hydroxypropyl Methyl Cellulose Fermented

Hydroxypropyl methylcellulose ni a lo bi ohun elo aise lati gbejade epo, eyiti o le pari lilo suga, mu iwọn lilo ti awọn ohun elo aise dara, dinku iye to ku ti sobusitireti ninu omitooro bakteria, dinku idiyele ti itọju omi idọti, ati ṣe agbekalẹ abuda. ti anfani hydroxypropyl methylcellulose O wulo fun iṣapeye ipele, ipele ati awọn ilana bakteria ti nlọ lọwọ, idilọwọ ifọwọyi ti àsopọ ati awọn iṣoro ti o jọmọ aṣa dilution; tun ni anfani fun ifọwọyi ti awọn ilana bakteria.

Hydroxypropyl methylcellulose, cellulose aise, o le jẹ owu ti a ti mọ, tabi o le jẹ ti ko nira igi. O nilo lati ṣaju ṣaaju tabi lakoko alkalization. O jẹ dandan lati pọn ohun elo aise cellulose nipasẹ agbara ẹrọ lati dinku crystallinity ati iwọn polymerization, mu agbegbe oju rẹ pọ si, ati lẹhinna mu iwọn trihydroxyl ati agbara ifaseyin kemikali ti ifaseyin lori iwọn glukosi ti polima cellulose.

Botilẹjẹpe kolaginni ti hydroxypropyl methylcellulose ko ni idiju, alkali, awọn ohun elo aise jẹ titu ati alkalized. Etherification, imularada epo, ipinya centrifugal, fifọ ati gbigbe ni awọn agbegbe pupọ, ṣugbọn pẹlu ọpọlọpọ awọn imọ-ẹrọ bọtini ati imọ akoonu ọlọrọ. Fun awọn oriṣiriṣi awọn ọja, agbegbe kọọkan ni awọn ipo iṣakoso tuntun, gẹgẹbi iwọn otutu, akoko, titẹ ati awọn ohun elo iranlọwọ iṣakoso sisan ati awọn ohun elo iṣakoso jẹ iṣeduro ti didara ọja iduroṣinṣin, eto iṣelọpọ igbẹkẹle, ati ọjo.

Niwọn igba ti iṣẹ ti hydroxypropyl methylcellulose jẹ iru si ti awọn ethers miiran ti omi tiotuka, o le ṣee lo bi aṣoju ti o ṣẹda fiimu, thickener, emulsifier ati amuduro ni awọn kikun latex ati awọn akopọ ti a bo resini ti omi-tiotuka, resistance abrasion, ibora aṣọ ati adhesion, ati ilọsiwaju ẹdọfu dada, iduroṣinṣin si awọn acids ati awọn ipilẹ, ati ibamu pẹlu awọn pigments ti fadaka. Hydroxypropyl methylcellulose ni ipa ti o dara bi apọn fun awọn kikun polyvinyl acetate ti o da lori omi funfun. Iwọn iyipada ti ether cellulose ti ni ilọsiwaju, ati pe resistance si kokoro arun tun dara si.


Akoko ifiweranṣẹ: Oṣu Karun-11-2023
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