HydroxyPropyl methylcellellse nubwoko bwa selile itari ionic bivanze ether. Bitandukanye ionic methyl carboxymethyll selile ivanze ether, ntabwo yitwara nibukaniro riremereye. Kubera igipimo gitandukanye cyibirimo na hydroxypropyle ibirimo muri hydroxypropyl methylcellleples, mugihe ibintu byinshi birimo ibintu bitandukanye hamwe na hydroxyPropyle iri hafi yibyo HydroxyPropyl Methyl Cellulose. Ariko, muri buri bwoko, nubwo gusa umubare muto wa hydroxyPropyl cyangwa umubare muto wa memoxyl ukiboneka, hari itandukaniro rikomeye mubikesha mubibazo bya kama cyangwa ubushyuhe bwa floctulat mubisubizo byimibare.
(1) Ibicuruzwa byonyine bya HydroxyPropyl methylcellse
①ubusa wa HydroxyPropyl methylcellse mumazi hydroxypropyl methylcellse yahinduwe na methylcellse yahinduwe mumazi akonje kandi ashyushye. Ariko, kubera amatsinda yahinduwe yahinduwe, ubushyuhe bwa pelale mumazi ashyushye ni hejuru cyane kurenza ubw'ikirere. Kurugero, viscogity ya hydroxyPropyl methylcellellse igisubizo cya 2% Urutonde rwimpapuro za mugitondo Ku bijyanye no kukengurwa mu mazi, nayo iratera imbere cyane. Kurugero, hydroxypropyl methylcellse (imiterere ya granular 0.2 ~ 0.
. Kubicuruzwa biri hejuru ya 2.1, vidroxyproppopyl methylcellse irimo hydroxypropyl ms = 0.2 ~ 1.8, hamwe na methanoX Birashonga kandi muri hydrocarbone nka methylene chloride na chloroform, hamwe na kama nka acetone nka acetone, inzoga za IsAcetone na Diacetone. Kudakemurwa kwamashanyarazi kama ni byiza kuruta kwikebagura amazi.
. Ibyatsi byibicuruzwa bimwe byiyongera hamwe no kwiyongera kw'ibitekerezo. Kubicuruzwa hamwe nuburemere butandukanye bwa molekari icyarimwe, ibicuruzwa hamwe nuburemere bunini bwa molekilar bufite ubushishozi bwo hejuru. Umubano wacyo nubushyuhe urasa nubwa methyl selile. Iyo ubushyuhe buzamutse, viscosity itangira kugabanuka, ariko iyo igeze ku bushyuhe runaka, viscosity irazamuka gitunguranye kandi igaragara. Ubushyuhe bwa Gel bwo kurimbura ibicuruzwa hasi biri hejuru. ni hejuru. Icyerekezo cyacyo ntigifitanye isano gusa na vithes gusa, ariko nanone bifitanye isano nubutaka bwa Methoxyl itsinda na hydroxyPropyl itsinda hamwe nubunini bwurwego rwo gusimbuza. Tugomba kumenya ko hydroxypropyl methylcellse nayo ni pseudoplastique, kandi igisubizo cyacyo kirahamye mubushyuhe bwicyumba udafite ubushyuhe bwicyumba kerekanya ubushyuhe usibye kubishoboka byo gutesha agaciro.
. Umunyu rusange nka chloride, Brospe, fosifate, nitrate, nibindi ntibizacika intege mugihe yongerewe igisubizo cyacyo. Ariko, kongeramo umunyu bifite uruhare runini ku bushyuhe bwa plocté yibisubizo byayo. Iyo umunyu wibanda kunyungu, ubushyuhe bwa Gel bugabanuka. Iyo umunyu wibanze uri munsi yingingo ya floctulation, viscosiyani yogisubizo ikunda kwiyongera. Kubwibyo, umubare runaka wumunyu wongeyeho. , mubisabwe, irashobora kugera kunganya ubukungu mubukungu. Kubwibyo, muburyo bumwe, nibyiza gukoresha imvange ya selile ether n'umunyu kuruta kwibanda cyane kugirango ugere ku ngaruka mbi.
. Irashobora kwihanganira umubare runaka wa acide yoroheje, nka acide ya macetike, acide acibi, acire Alkalis nka soda ya Caustic, amazi ya Caustic atagira ingaruka kuri yo, ariko arashobora kongera ubukwe bwigisubizo, hanyuma bukagabanya buhoro.
. Ibi bigize polymer birimo Glycol, Polyvinys Acetate, Polysilikone, PolymethylvinysiloxalIAne, HydroxyEthyl, na Methyl selile. Ibikorwa bisanzwe byinshi nkibishitsi bya Gum Icyarabu, inzige mu byumwa, karaya gum, nibindi kandi bifite akamaro keza nigisubizo cyacyo. HydroxyPropyl methylcellse irashobora kandi kuvangwa na Manteli Ester cyangwa Sorbitpol enterineti ya acide cyangwa iryiti
.) Igitabo gikora hydroxyproppopyl methylcellse idashobora gushyiramo foldehyde, glegoxehde, muri keltoldehyde, mubice bya glyoxe umusaruro. Umubare wubwoko nkubu wasabwe mu gisubizo ni 0.2% ~ 10% ya misa ya ether, byaba byiza 7% ~ 10% ya Glyoxal niyo ibereye cyane. Mubisanzwe, ubushyuhe bwubuvuzi ni 0 ~ 30 ℃, kandi igihe ni 1 ~ 120min. Guhuza imyuka bigomba gukorwa muburyo bwa aside. Mubisanzwe, igisubizo cyongewe bwa mbere acide acide cyangwa aside kano kugirango uhindure ph yumuti ugera kuri 2 ~ 6, byaba byiza hagati ya 4 ~ 6, hanyuma wongere Addehdes gukora reaction ihuriweho. Acide yakoreshejwe ifite aside hydrochloric, aside sulfuric, acide ya fosifori, acide Acide na Aldehyde barashobora kandi kongerwaho icyarimwe kugirango bakemereke igisubizo cyo guhura na reaction yo guhuza PH. Iyi myitwarire ikoreshwa kenshi mubikorwa byanyuma byo kuvura mubikorwa byo gutegura aba bahanganye na selile. Nyuma ya selile ether ni ibicucu, biroroshye gukoresha
20 ~ 25 ℃ Amazi yo Gukaraba no kwezwa. Iyo ibicuruzwa bikoreshwa, ibintu bya alkaline birashobora kongerwaho kubicuruzwa kugirango uhindure PH yumuti wo kuba alkaline, kandi ibicuruzwa bizashonga mubisubizo vuba. Ubu buryo bukoreshwa no kuvura film nyuma yubugari bwa selile bikozwe muri firime kugirango ikore film idashoboka.
.) Urunigi rwa Cellulose ntabwo ruhuze, kandi mikoroguro irashobora kwangirika ku itsinda rya anhydroglucocose. Isukari zarakozwe kandi zigakoreshwa nk'intungamubiri za mikorobe. Kubwibyo, niba urwego rwo gusimbuza kwangirika kwa selile, kurwanya isuri yuzuye ya selile iziyongera. Nk'uko amakuru abitangaza, kugengwa n'imiterere yagenzuwe, hydrolyses ibisubizo bya endzymes, visity ya hydroxyPropyl methycelllese (DS = 1.6%, na methylceellyl methythyl Meleulose ni 1.7%. Birashobora kugaragara ko hydroxypropyl methylcellse ifite ubushobozi bukomeye bwo kurwanya enzyme. Kubwibyo, enzyme nziza yo kurwanya hydroxypropyl methylcellse, ihujwe nuburyo butazirikana, kubyimba no gukora siporo, bikoreshwa mumata ya manda, nibindi, kandi muri rusange ntibikeneye kopi. Ariko, kububiko bwigihe kirekire kubisubizo cyangwa kwanduza hanze, bikaba bishobora kongerwa ari ukwirinda, kandi guhitamo birashobora kugenwa hakurikijwe ibisabwa byanyuma byigisubizo. PhenylmerCuric acetate na manganesi fluororasilicate nibitunganya neza, ariko bose bafite uburozi, bagomba kwitondera kubagwa. Mubisanzwe, 1 ~ 5Mg ya Phenylmercury acetate irashobora kongerwaho igisubizo kuri litiro ya dosage.
. Igisubizo cyacyo cyamazi cyangwa igisubizo cyibinyabuzima cyatijwe ku isahani yikirahure, kandi biba ubuntu nyuma yo kumisha. Ibara, film yo mu mucyo na bukomeye. Ifite ubushuhe bwiza kandi ikomeza gukomera mubushyuhe bwo hejuru. Niba Plasticecopic yongeyeho, kurangira no guhinduka birashobora kwiyongera. Mu rwego rwo kuzamura impimuro, plastistizers nka glycerin na sorbitdol nibyo byose. Mubisanzwe, igisubizo cyigisubizo ni 2% ~ 3%, kandi ingano ya plastistizer ni 10% ~ 20% ya selile. Niba ibikubiye muri plastistizer ari hejuru cyane, kugabanuka kwa colloidal dehydration bizabera mubushuhe buke. Imbaraga za tensile ya firime hamwe na plastisar yongeyeho ni nini cyane kuruta uko idafite plastistizer, kandi iriyongera hamwe no kongera amafaranga yinyongera. Naho hygroscopique ya firime, iriyongera kandi kongera umubare wa plastistizer.
Igihe cya nyuma: Ukuboza-20-2022