-
Ingaruka zo kwiyongera kwa eteri ya selulosi biterwa n'urugero rwa polymerization ya eteri ya selulosi, ubwinshi bw'umuti, umuvuduko wo gukata, ubushyuhe n'ibindi. Imiterere ya gelling y'umuti ni umwihariko wa alkyl cellulose n'ibiyikomokaho byahinduwe. Imiterere ya gelation ni r...Soma byinshi»
-
1. Ubushyuhe bwo gushyuha Dukurikije uko ubushyuhe bwo gushyuha bugenda bugabanuka uko igihe kigenda gihita, uburyo bwo gushyuha bwa sima bukunze kugabanywamo ibice bitanu, ari byo: igihe cyo gushyuha bwa mbere (0 ~ 15 min), igihe cyo gutangira (15 min ~ 4 h), igihe cyo kwihutisha no gushyiraho (4h ~ 8 h), kugabanya umuvuduko ...Soma byinshi»
-
Mu ikoreshwa ry'ibikoresho by'ubwubatsi, hydroxypropyl methylcellulose ni inyongeramusaruro ikoreshwa cyane mu bikoresho by'ubwubatsi, naho hydroxypropyl methylcellulose ikoreshwa cyane mu nganda kandi ifite ubwoko butandukanye. Hydroxypropyl methylcellulose ishobora kugabanywamo ubwoko bw'amazi akonje n'ubwoko bw'amazi ashyushye ashongeshwa, hamwe...Soma byinshi»
-
Mu ibumba, sima na gypsum, HPMC hydroxypropyl methylcellulose ether igira uruhare mu kubika amazi no kuyagwingira, kandi ishobora kunoza neza uburyo ibumba rifatana n'amazi. Ibintu nk'ubushyuhe bw'umwuka, ubushyuhe n'umuvuduko w'umuyaga bizafasha...Soma byinshi»
-
Hydroxypropyl methyl cellulose (HPMC) ni ubwoko bwa eteri ya cellulose idafite ionic ikozwe mu ipamba rya polymer karemano hakoreshejwe uburyo butandukanye bwo kuvura. Mu nganda z'ubwubatsi, ni iyihe mikoreshereze nyamukuru ya hydroxypropyl methylcellulose? 1, sima: kunoza urwego rw'umucanga wa sima, g...Soma byinshi»
-
Bishyizwe mu byiciro hakurikijwe ibintu bisimbura ibindi, eteri za selulosi zishobora kugabanywamo eteri imwe n'eteri zivanze; bishyizwe mu byiciro hakurikijwe uburyo bwo gushonga, eteri za selulosi zishobora kugabanywamo izishongesha mu mazi n'izidashonga mu mazi. Uburyo bw'ingenzi bwo gushyira mu byiciro eteri ya selulosi ni ugushyira mu byiciro hakurikijwe ioni...Soma byinshi»
-
1. Ihame ry'imiterere n'itegurwa rya eteri ya selulosi Ishusho ya 1 igaragaza imiterere isanzwe ya eteri za selulosi. Buri gice cya bD-anhydroglucose (igice gisubiramo cya selulosi) gisimbura itsinda rimwe ku myanya ya C (2), C (3) na C (6), ni ukuvuga ko hashobora kubaho amatsinda ya eteri agera kuri atatu. Bitewe n'uko ...Soma byinshi»
-
Ibintu by'ingenzi bituma ubuso bwa putty idashobora amazi buhinduka umuhondo Nyuma y'ubushakashatsi ku bikoresho, igerageza ryinshi n'imyitozo y'ubuhanga, umwanditsi yizera ko ibintu by'ingenzi bituma ubuso bwa putty idashobora amazi buhinduka umuhondo ni ibi bikurikira: Impamvu ya 1. Kalisiyumu...Soma byinshi»
-
1. Hydroxypropyl methyl cellulose Hydroxypropyl methylcellulose ni ubwoko bwa cellulose buvangwa n'umusaruro n'ikoreshwa ry'ibintu byiyongera cyane. Ni eteri ivanze ya cellulose itari ionic ikozwe mu ipamba ryatunganyijwe nyuma yo guhindurwamo alkalize, hakoreshejwe propylene oxide na methyl chloride nk'ikintu gitanga etherification, binyuze mu...Soma byinshi»
-
Umumaro w'ingenzi w'umuti wa eteri ya selulosi ni imiterere yawo ya rheological. Imiterere yihariye ya eteri nyinshi za selulosi ituma zikoreshwa cyane mu nzego zitandukanye, kandi kwiga imiterere ya rheological ni ingirakamaro mu iterambere ry'imirima mishya ikoreshwa cyangwa idasanzwe...Soma byinshi»
-
Ni iyihe miterere ya carboxymethyl cellulose? Igisubizo: Carboxymethyl cellulose nayo ifite imiterere itandukanye bitewe n'ingano zayo zitandukanye zo gusimbuza. Igipimo cyo gusimbuza, kizwi kandi nk'urwego rwa etherification, bivuze umubare mpuzandengo wa H mu matsinda atatu ya OH hydroxyl rep...Soma byinshi»
-
Carboxymethyl cellulose: Ionic cellulose ether ikorwa mu migozi karemano (ipamba, nibindi) nyuma yo kuvurwa na alkali, hakoreshejwe sodium monochloroacetate nk'ikintu gitanga etherification, kandi ikorerwa ubuvuzi butandukanye. Igipimo cyo gusimbuza muri rusange ni 0.4 ~ 1.4, kandi imikorere yayo ni myiza cyane ...Soma byinshi»