Ni irihe tandukaniro riri hagati yimikorere ya methyl selulose ether na fibre ya lignin

Ni irihe tandukaniro riri hagati yimikorere ya methyl selulose ether na fibre ya lignin

Igisubizo: Kugereranya imikorere hagati ya methyl selulose ether na fibre ya lignin irerekanwa mumeza

 Kugereranya imikorere hagati ya methyl selulose ether na fibre ya lignin

Ni iki gikwiye kwitabwaho mugihe ukoresheje methyl selulose na carboxymethyl selulose?

Igisubizo: (1) Iyo ukoresheje amazi ashyushye kugirango ushonga selile, igomba gukonjeshwa byuzuye mbere yo kuyikoresha. Ubushyuhe bukenewe kugirango iseswe ryuzuye hamwe no gukorera mu mucyo biterwa n'ubwoko bwa selile.

(2) Ubushyuhe busabwa kugirango ubone ubukonje buhagije

Carboxymethylcellulose≤25 ℃, methylcellulose≤20 ℃

. Ntugasukemo amazi muri selilose, kandi ntukongereho mu buryo butaziguye selile nyinshi yagabanutse kandi ikabamo ibibyimba cyangwa imipira muri kontineri.

. Ibishobora gukoreshwa ni: sodium hydroxide yumuti wamazi, sodium karubone yumuti wamazi, sodium bicarbonate yumuti wamazi, amazi ya lime, amazi ya amoniya na amoniya kama, nibindi.

. Niba byongewe muburyo butaziguye kuri alkaline, kuvura hejuru bizananirana kandi bitera kondegene, bityo rero hakwiye kwitabwaho cyane.

Ni ubuhe bwoko bwa methylcellulose?

Igisubizo: (1) Iyo ashyutswe hejuru ya 200 ° C, irashonga ikabora. Ibivu birimo hafi 0.5% iyo bitwitswe, kandi ntaho bibogamiye iyo bikozwe mumazi. Kubijyanye n'ubukonje bwacyo, biterwa nurwego rwa polymerisation.

.

.

(4) Iyo hari umunyu wicyuma cyangwa electrolytike kama mugisubizo cyamazi yacyo, igisubizo kirashobora kuguma gihamye. Iyo electrolyte yongeyeho kubwinshi, gel cyangwa imvura bizabaho.

(5) Ifite ibikorwa byo hejuru. Bitewe no kuba hari amatsinda ya hydrophilique na hydrophobique muri molekile zayo, ifite imirimo ya emulisifike, kurinda colloid no guhagarara neza.

(6) Gushyuha. Iyo igisubizo cyamazi kizamutse mubushyuhe runaka (hejuru yubushyuhe bwa gel), bizahinduka umuyonga kugeza igihe biza cyangwa bigwa, bigatuma igisubizo kibura ubukonje bwacyo, ariko gishobora gusubira muburyo bwambere nyuma yo gukonja. Ubushyuhe burimo gelation nubushyuhe biterwa nubwoko bwibicuruzwa, ubwinshi bwumuti, nigipimo cyubushyuhe.

(7) pH irahagaze. Ubukonje bwumuti wamazi ntibworoshye byoroshye na aside na alkali. Nyuma yo kongeramo umubare munini wa alkali, utitaye ku bushyuhe bwo hejuru cyangwa ubushyuhe buke, ntabwo bizatera kubora cyangwa gucamo urunigi.

. Ntabwo ihinduka umuhondo cyangwa ibibyimba iyo ihuye numucyo, kandi irashobora kongera gushonga mumazi. Niba fordehide yongewe kumuti cyangwa nyuma yo kuvurwa na fordehide, firime ntishobora gushonga mumazi, ariko irashobora kwaguka igice.

(9) Kubyimba. Irashobora kubyimba amazi na sisitemu idafite amazi, kandi ifite imikorere myiza yo kurwanya sag.

(10) Kwishishanya. Igisubizo cyacyo cyamazi gifite ubumwe bukomeye, bushobora kunoza ubumwe bwa sima, gypsumu, irangi, pigment, wallpaper, nibindi.

(11) Guhagarikwa. Irashobora gukoreshwa mugucunga coagulation hamwe nimvura yibice bikomeye.

(12) Kurinda colloid no kunoza ituze rya colloid. Irashobora gukumira kwirundanya no gutonyanga ibitonyanga na pigment, kandi ikarinda neza imvura.

(13) kubika amazi. Igisubizo cyamazi gifite ubwiza bwinshi. Iyo wongeyeho kuri minisiteri, irashobora kugumana amazi menshi, irinda neza kwinjiza amazi cyane na substrate (nk'amatafari, beto, nibindi) kandi bikagabanya umuvuduko wamazi.

.

(15) Irashobora kuvangwa na carboxymethyl selulose muburyo ubwo aribwo bwose kugirango ibone ingaruka zidasanzwe.

(16) Imikorere yo kubika igisubizo nibyiza. Niba ishobora guhorana isuku mugihe cyo gutegura no kubika, irashobora kubikwa ibyumweru byinshi itangirika.

ICYITONDERWA: Methylcellulose ntabwo ari uburyo bwo gukura kuri mikorobe, ariko niba ihumanye na mikorobe, ntibizababuza kugwira.Niba igisubizo gishyushye igihe kirekire, cyane cyane imbere ya aside, molekile zumunyururu nazo zishobora gucamo ibice, kandi ububobere buzagabanuka muri iki gihe. Irashobora kandi gutera gucamo ibice bya okiside, cyane cyane mubisubizo bya alkaline.

Ni izihe ngaruka nyamukuru za carboxymethyl selulose (CMC) kuri gypsumu?

Igisubizo: Carboxymethyl selulose (CMC) ahanini igira uruhare mukubyimba no gufatana, kandi ingaruka zo gufata amazi ntabwo zigaragara. Niba ikoreshejwe ifatanije nogukoresha amazi, irashobora kubyimba no kubyimba gypsum slurry no kunoza imikorere yubwubatsi, ariko carboxymethyl selulose Selulose fatizo izabuza imiterere ya gypsumu, cyangwa ntizikomere, kandi imbaraga zizagabanuka cyane , amafaranga yo gukoresha rero agomba kugenzurwa cyane.