Amakuru

01. Itandukaniro riri hagati ya hydroxypropyl methyl y'impimbano na hydroxypropyl methyl nziza cyane Ishusho: Ifuru y'ibinyampeke HPCM isa nkaho ingana cyane, iri hagati ya 0.3 na 0.4 g/ml. Amylum ifatana na fermete bityo HPCM ikaba amazi kandi idakomeye cyane ugereranyije n'imiti isanzwe ikuraho uburozi. Ibisabwa: ifuru yuzuye fermete, hpm ...Soma byinshi»

Abakoresha benshi ntibakunze kwita ku kibazo cy'ubushyuhe bwa gel bwa hydroxypropyl methylcellulose. Muri iki gihe, hydroxypropyl methylcellulose ikunze gutandukanywa hakurikijwe ubushyuhe, ariko ku bidukikije bimwe na bimwe byihariye n'inganda zidasanzwe, ubushyuhe bw'ibicuruzwa ni bwo bwonyine bugaragara...Soma byinshi»

Hari ibintu byinshi bigira ingaruka ku ikoreshwa rya hydroxypropyl methylcellulose HPMC mu bikoresho by'ubwubatsi, cyane cyane plaster ishingiye kuri gypsum, ibi bikurikira: 1. Gufata amazi Hydroxypropyl methylcellulose mu bwubatsi irinda ko amazi yinjira cyane mu gice cy'ubutaka, kandi iyo gyp...Soma byinshi»

Uruvange rumwe rufite imbogamizi mu kunoza imikorere ya gypsum slurry. Niba imikorere ya gypsum mortar igomba kugera ku musaruro ushimishije no kuzuza ibisabwa bitandukanye, ibyuma bivanze, ibivanze, ibinyujije, n'ibindi bikoresho bitandukanye birakenewe kongerwamo kandi bigashyirwamo...Soma byinshi»

Hydroxypropyl methylcellulose – sima y'amabuye Ongera uburyo amazi afatanye n'ubuso bw'amabuye, kandi wongere ubushobozi bwo kubika amazi, kugira ngo imbaraga za sima zirusheho kuba nziza. Kunoza uburyo bwo gukoresha sima no kuyitunganya kugira ngo irusheho kuba nziza, koroshya kuyikoresha bikagabanya igihe kandi bikanoza...Soma byinshi»

Cellulose hydroxypropyl methyl ether ikorwa muri cellulose y'ipamba nziza cyane binyuze mu buryo bwihariye bwo gushyushya amazi mu gihe cy'ubushyuhe bwa alkaline. Ingaruka: 1. Inganda z'ubwubatsi: Nk'ikintu gifata amazi kandi kigabanya ubushyuhe bwa sima, gishobora gutuma ubushyuhe bushobora kuvomwa. Muri plaster, gypsum, putty powder cyangwa...Soma byinshi»

1. Ubushyuhe bwa jeli (0.2% by'umuti) 50-90°C. 2. Ishongesha mu mazi no mu gice kinini cya polar c n'igipimo gikwiye cya ethanol/amazi, propanol/amazi, dichloroethane, nibindi, ntishongesha muri ether, acetone, ethanol yuzuye, hanyuma ikabyimba ikagera mu gisubizo cya colloidal cy'amazi akonje. Amazi ...Soma byinshi»

MC ni methyl cellulose, ikorwa muri eteri ya cellulose binyuze mu gutunganya ipamba itunganyijwe na alkali, hakoreshejwe methane chloride nk'ikintu gitanga eteri, kandi ikanyura mu buryo butandukanye. Muri rusange, urwego rwo gusimbuza ni 1.6 ~ 2.0, kandi gushonga nabyo biratandukanye bitewe n'ibipimo bitandukanye ...Soma byinshi»

Hydroxypropyl methylcellulose yo mu rwego rwa buri munsi ni polymeri ikoze mu ipamba rya cellulose karemano binyuze mu guhindura etherification. Cellulose ether ni ikomoka kuri cellulose karemano. Ikorwa rya cellulose ether ritandukanye na polymeri zikoze. Ni polymeri y'ibanze cyane...Soma byinshi»

Kongeramo hydroxypropyl methylcellulose kugira ngo ikore ifu ya putty, ubukana bwayo ntabwo bworoshye kuyigira nini cyane, bunini cyane butera gukora nabi, none se ubukana bwa hydroxypropyl methylcellulose ku ifu ya putty bungana iki bukenewe? Reka tubisesengure kuri buri wese. Ni byiza kongeramo hydroxypropyl methylc...Soma byinshi»

Mu gishishwa cya sima n'igishishwa gishingiye kuri gypsum, hydroxypropyl methylcellulose igira uruhare mu kubika amazi no kuyakomeza, kandi ishobora kunoza neza uburyo igishishwa gifatana n'ubudahangarwa bwacyo. Ibintu nk'ubushyuhe bw'umwuka, ubushyuhe n'umuvuduko w'umuyaga bigira ingaruka ku ihindagurika ry'ikirere...Soma byinshi»

1. Ibibazo bikunze kugaragara mu ifu ya putty Kumisha vuba: Ibi biterwa ahanini n'ingano y'ifu ya kalisiyumu y'indimu yongewemo (ni nini cyane, ingano y'ifu ya kalisiyumu y'indimu ikoreshwa muri putty ishobora kugabanuka neza) bifitanye isano n'igipimo cyo kubika amazi muri fibre, kandi bifitanye isano n'uburyo ...Soma byinshi»