01. Ibyiza bya sodium carboxymethylcellulose
Sodium carboxymethyl selulose ni anionic polymer electrolyte. Urwego rwo gusimbuza CMC yubucuruzi ruri hagati ya 0.4 kugeza 1.2. Ukurikije ubuziranenge, isura ni umweru cyangwa ifu yera.
1. Ubwiza bwumuti
Ubukonje bwumuti wamazi wa CMC bwiyongera byihuse hamwe no kwiyongera kwinshi, kandi igisubizo gifite ibiranga pseudoplastique. Ibisubizo bifite urwego rwo hasi rwo gusimburwa (DS = 0.4-0.7) akenshi bigira thixotropy, kandi ibigaragara bigaragara ko bizahinduka mugihe ubwogoshe bwakoreshejwe cyangwa bwakuwe mubisubizo. Ubukonje bwumuti wamazi wa CMC buragabanuka hamwe nubushyuhe bwiyongera, kandi iyi ngaruka irahindurwa mugihe ubushyuhe butarenze 50 ° C. Ku bushyuhe bwo hejuru igihe kirekire, CMC izatesha agaciro. Ninimpamvu ituma amaraso ava amaraso byoroshye guhinduka umweru no kwangirika mugihe ucapuye umurongo utameze neza wamaraso.
CMC ikoreshwa muri glaze igomba guhitamo ibicuruzwa bifite urwego rwo hejuru rwo gusimburwa, cyane cyane amaraso ava.
2. Ingaruka yagaciro ka pH kuri CMC
Ubukonje bwumuti wamazi wa CMC buguma ari ibisanzwe muburyo bugari bwa pH, kandi burahagaze neza hagati ya pH 7 na 9. Hamwe na pH
Agaciro kagabanuka, kandi CMC ihinduka kuva muburyo bwumunyu igahinduka aside, idashobora gushonga mumazi no kugwa. Iyo agaciro ka pH kari munsi ya 4, igice kinini cyumunyu gihinduka aside kandi igwa. Iyo pH iri munsi ya 3, urwego rwo gusimburwa ruri munsi ya 0.5, kandi rushobora guhinduka rwose kuva mumunyu ukagera kuri acide. Agaciro pH yo guhindura byimazeyo CMC hamwe nu rwego rwo hejuru rwo gusimbuza (hejuru ya 0.9) iri munsi ya 1. Noneho rero, gerageza ukoreshe CMC ufite urwego rwo hejuru rwo gusimbuza glaze.
3. Isano iri hagati ya CMC na ion zicyuma
Iyuma ya monovalent ion irashobora gukora umunyu ushonga mumazi hamwe na CMC, bitazagira ingaruka kumyuka, gukorera mu mucyo nibindi bintu byumuti wamazi, ariko Ag + nibidasanzwe, bizatera igisubizo kugwa. Iyoni zingana nicyuma, nka Ba2 +, Fe2 +, Pb2 +, Sn2 +, nibindi bitera igisubizo kugwa; Ca2 +, Mg2 +, Mn2 +, nibindi nta ngaruka bigira kubisubizo. Iyoni ntoya yibyuma ikora imyunyu idashonga hamwe na CMC, cyangwa imvura cyangwa gel, bityo chloride ferricike ntishobora kubyimba hamwe na CMC.
Hariho ukutamenya neza ingaruka zo kwihanganira umunyu wa CMC:
(1) Bifitanye isano n'ubwoko bw'umunyu w'icyuma, pH agaciro k'igisubizo n'urwego rwo gusimbuza CMC;
(2) Bifitanye isano no kuvanga gahunda nuburyo bwa CMC n'umunyu.
CMC ifite urwego rwo hejuru rwo gusimbuza ifite guhuza neza nu munyu, kandi ingaruka zo kongeramo umunyu mumuti wa CMC nibyiza kuruta amazi yumunyu.
CMC nibyiza. Kubwibyo, mugihe utegura glaze osmotic, mubisanzwe ushonga CMC mumazi, hanyuma wongeremo umunyu wa osmotic.
02. Nigute dushobora kumenya CMC kumasoko
Bishyizwe mubikorwa byera
Urwego rwohejuru cyane - ibirimo biri hejuru ya 99.5%;
Urwego rwiza rwinganda - ibirimo biri hejuru ya 96%;
Ibicuruzwa bitemewe - ibirimo biri hejuru ya 65%.
Bishyizwe mu majwi
Ubwoko bwo hejuru cyane - 1% igisubizo kiboneka hejuru ya 5 Pa s;
Ubwoko bwa viscosity hagati - viscosity ya 2% igisubizo kiri hejuru ya 5 Pa s;
Ubwoko bwijimye buke - 2% yumuti wijimye hejuru ya 0.05 Pa · s.
03. Ibisobanuro byurugero rusanzwe
Buri ruganda rufite icyitegererezo cyarwo, bivugwa ko hari ubwoko burenga 500. Icyitegererezo gikunze kugaragara kigizwe n'ibice bitatu: X - Y - Z.
Ibaruwa ya mbere yerekana imikoreshereze yinganda:
F - urwego rwibiryo;
I —— icyiciro cy'inganda;
C - urwego rwibumba;
O - urwego rwa peteroli.
Ibaruwa ya kabiri yerekana urwego rwijimye:
H - ubukonje bwinshi
M —— ubukonje buciriritse
L - ubukonje buke.
Ibaruwa ya gatatu yerekana urwego rwo gusimburwa, kandi umubare wacyo ugabanijwe na 10 ni urwego nyarwo rwo gusimbuza CMC.
Urugero:
Icyitegererezo cya CMC ni FH9, bivuze ko CMC ifite ibyiciro byibiribwa, ubukonje bwinshi hamwe nimpamyabumenyi ya 0.9.
Icyitegererezo cya CMC ni CM6, bivuze ko CMC yo mucyiciro cya ceramic, icyegeranyo giciriritse hamwe nimpamyabumenyi ya 0.6.
Mu buryo nk'ubwo, hari n'amanota akoreshwa mu buvuzi, mu myenda no mu zindi nganda, zidakunze kugaragara mu gukoresha inganda z’ubutaka.
44. Ibipimo byo gutoranya inganda zubutaka
1. Guhagarara neza
Nibintu byambere byo guhitamo CMC ya glaze
(1) Viscosity ntabwo ihinduka cyane mugihe icyo aricyo cyose
(2) Viscosity ntabwo ihinduka cyane hamwe nubushyuhe.
2. Thixotropy nto
Mugukora amatafari asize, glaze slurry ntishobora kuba thixotropique, bitabaye ibyo ikagira ingaruka kumiterere yubuso bwa glaze, nibyiza rero guhitamo CMC yo mu rwego rwibiryo. Kugirango ugabanye ibiciro, ababikora bamwe bakoresha inganda zo mu rwego rwa CMC, kandi ubwiza bwa glaze bugira ingaruka byoroshye.
3. Witondere uburyo bwo gupima viscosity
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(2) Witondere uburinganire bwumuti wa CMC. Uburyo bukomeye bwo kwipimisha ni ugukangura igisubizo mumasaha 2 mbere yo gupima ububobere bwacyo;
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(4) Witondere kubungabunga igisubizo cya CMC kugirango wirinde kwangirika.
(5) Witondere itandukaniro riri hagati yubukonje no guhuzagurika.
Igihe cyo kohereza: Mutarama-05-2023