Focus on Cellulose ethers

Hydroxypropyl methyl selulose ni iki?

Intangiriro kuri Hydroxypropyl Methyl Cellulose
Hydroxypropyl methylcellulose, izwi kandi ku izina rya hypromellose na HPMC selulose hydroxypropyl methyl ether, ikozwe mu ipamba rya selile nziza cyane nk'ibikoresho fatizo, bigashyirwa mu buryo bwihariye mu bihe bya alkaline. HPMC ni ifu yera, itaryoshye, idafite impumuro nziza, idafite uburozi, idahindutse rwose mumubiri wumuntu kandi isohoka mumubiri. Igicuruzwa gishobora gushonga mumazi, ariko ntigishobora gushonga mumazi ashyushye. Igisubizo cyamazi nikintu kitagira ibara kibonerana. HPMC ifite umubyimba mwiza, emulisitiya, gukora firime, gutatanya, kurinda colloid, kugumana ubushuhe, adhesion, aside na alkali birwanya, kurwanya enzyme nibindi bintu, kandi bikoreshwa cyane mubwubatsi, gutwikira, ubuvuzi, ibiryo, imyenda, imirima ya peteroli, kwisiga, ibikoresho byo gukaraba, ububumbyi, wino hamwe nuburyo bwa polymerisiyonike.

1. Kalisiyumu nkeya ya calcium yumukara hamwe nigipimo kidakwiye cya CaO na Ca (OH) 2 muri calcium yumukara bizatera gutakaza ifu. Niba bifite aho bihuriye na HPMC, noneho niba amazi ya HPMC ari mabi, bizatera no gutakaza ifu. Ese ifu yatakaje ifu ya putty ifitanye isano na hydroxypropyl methylcellulose? Gutakaza ifu yifu ya putty bifitanye isano ahanini nubwiza bwa calcium yivu, kandi ntaho bihuriye na HPMC.

2. Igikorwa cyingenzi cya hydroxypropyl methylcellulose ni ukubika amazi, hagakurikiraho kubyimba. Mu ifu ya putty, mugihe cyose gufata amazi ari byiza kandi ibishishwa bikaba bike (70.000-80,000), birashoboka. Birumvikana ko hejuru yubukonje, niko gufata amazi ugereranije. Iyo ubwiza burenze 100.000, ubwiza buzagira ingaruka kumazi. Ntabwo ari byinshi.

Ni ubuhe bwenge bwa hydroxypropyl methylcellulose (HPMC)?

Ifu ya putty muri rusange ni 100.000 Yuan, kandi ibisabwa kuri minisiteri ni byinshi, kandi 150.000 yuan birakenewe kugirango bikoreshwe byoroshye.

3. Nibihe bikoresho nyamukuru bya hydroxypropyl methylcellulose? Ibikoresho nyamukuru bya hydroxypropyl methylcellulose (HPMC): ipamba itunganijwe, chloride methyl, okiside ya propylene, nibindi bikoresho fatizo, soda ya caustic, aside, Toluene, isopropanol, nibindi.

4. Niyihe mpamvu yo kunuka hydroxypropyl methylcellulose? Hydroxypropyl methylcellulose yakozwe nuburyo bwa solvent ikoresha toluene na isopropanol nkumuti. Niba gukaraba atari byiza cyane, hazabaho umunuko usigaye.

5. Hydroxypropyl methylcellulose: Ufite hydroxypropyl nyinshi muri rusange ni byiza mu kubika amazi. Iyifite ubukonje bwinshi ifite gufata neza amazi, ugereranije (ntabwo rwose), naho iyifite ubukonje bwinshi ikoreshwa neza mumabuye ya sima. Nibihe bipimo nyamukuru byerekana tekinike? Hydroxypropyl ibirimo hamwe nubwiza, abakoresha benshi bahangayikishijwe nibi bipimo byombi.

Ese phenomenon ya efflorescence muri minisiteri ifitanye isano na hydroxypropyl methylcellulose?

Hashize igihe, umukiriya yavuze ko ibicuruzwa bifite efflorescence, kandi akora spray. Shotcrete: Igikorwa nyamukuru nugupfuka inyuma, gukomera, no kongera gufatana hagati yurukuta nibikoresho byo hejuru. Koresha bike cyane, gusa utere urwego ruto kurukuta. Dore ifoto yibintu bya efflorescence umukiriya yanyoherereje: Ishusho Igitekerezo cyanjye cya mbere nuko rwose atariyo nyirabayazana wa hydroxypropyl methylcellulose, kubera ko hydroxypropyl methylcellulose idahuye nikintu cyose kiri mu mbunda yabyitwayemo. Kandi ibintu bya efflorescence ni: beto isanzwe ni silikatike, iyo ihuye numwuka cyangwa ubuhehere kurukuta, ion ya silikatike ihura na hydrolysis, kandi hydroxide yabyaye ikomatanya na ion ibyuma kugirango ikore hydroxide ifite imbaraga nke (imiti ya chimique Alkaline) , iyo ubushyuhe buzamutse, imyuka y'amazi irashira, kandi hydroxide igwa kurukuta. Hamwe no guhinduka buhoro buhoro amazi, hydroxide igwa hejuru yubuso bwa sima ya beto, ikegeranya mugihe, bigatuma imitako yumwimerere Iyo irangi cyangwa irangi bizamuwe kandi ntibikigumane kurukuta, kwera, gukuramo, no gukuramo bizabaho. Iyi nzira yitwa "pan-alkali". Ntabwo rero ubiquinol iterwa na hydroxypropyl methylcellulose

Umukiriya yavuze kandi kuri phenomenon: grout yatewe yatewe izaba ifite pan-alkaline phenomenon kurukuta rwa beto, ariko ntizigaragara kurukuta rwamatafari rwarashwe, byerekana ko silikoni muri sima yakoreshejwe kurukuta rwa beto Umunyu (alkaline ikomeye) umunyu) ni muremure cyane. Efflorescence iterwa no guhumeka amazi akoreshwa mugutera spray. Ariko, nta silikatike iri kurukuta rw'amatafari yarashwe kandi nta efflorescence izaba. Ikintu rero cya efflorescence ntaho gihuriye no gutera.

Igisubizo:

1. Ibintu bya silikatike ya sima ya beto yagabanutse.

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3. Irinde kwinjira mu mazi, kandi ntukaminjagire amazi menshi mbere yo kubaka.

Kuvura pan-alkaline phenomenon:
Ibikoresho byo gusukura amabuye efflorescence kumasoko birashobora gukoreshwa. Iyi suku ni isuku itagira ibara ryamazi ikozwe mubintu bitari ionic surfactants hamwe na solve. Ifite ingaruka runaka mugusukura amabuye karemano. Ariko mbere yo kuyikoresha, menya neza gukora ikizamini gito cyo gupima kugirango ugerageze ingaruka hanyuma uhitemo kuyikoresha.

Ikoreshwa rya Cellulose mu nganda zubaka

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3. Gupfundikanya ibikoresho byangiritse nka asibesitosi: nkumukozi uhagarika, ibintu byongera amazi, kandi binatezimbere imbaraga zihuza substrate.
4. Gypsum coagulation slurry: kunoza gufata neza no gutunganya, no kunoza imiterere ya substrate.
5. Isima ihuriweho: yongewe kuri sima ihuriweho na gypsum kugirango iteze imbere amazi.
6. Latex putty: kunoza amazi no kugumana amazi ya resin latex ishingiye kuri putty.
7. Stucco: Nka paste yo gusimbuza ibicuruzwa bisanzwe, irashobora kunoza gufata neza amazi no kunoza imbaraga zihuza na substrate.
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9. Gutera irangi: Ifite ingaruka nziza mukurinda kurohama kwa sima cyangwa latex gutera ibikoresho hamwe no kuzuza no kunoza amazi no gutera imiti.
10. Ibicuruzwa bya kabiri bya sima na gypsumu: bikoreshwa nkibikoresho byo gusohora sima-asibesitosi nibindi bintu bya hydraulic kugirango bitezimbere amazi kandi bibone ibicuruzwa bimwe bibumbabumbwe.
11. Urukuta rwa fibre: Bitewe na anti-enzyme n'ingaruka zo kurwanya bagiteri, bigira akamaro nkuguhuza inkuta zumucanga.
12. Abandi: Irashobora gukoreshwa nkibikoresho byo kugumana ikirere (verisiyo ya PC) kubutaka bworoshye bwibumba ryumucanga hamwe nuwashinzwe hydraulic.

Porogaramu mu nganda zikora imiti
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3. Imiti yica udukoko: Yongewe kumiti yica udukoko nudukoko, irashobora kunoza ingaruka zifatika mugihe utera.
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5. Guhambira: nk'ibikoresho byo gushiraho amakaramu na karayoni.

Porogaramu mu nganda zo kwisiga
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2. Amenyo yinyo: Kunoza amazi yinyo yinyo.

Porogaramu mu nganda zimiti
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2. Buhoro buhoro agent: garama 2-3 kumunsi, 1-2G buri gihe, ingaruka zizagaragara muminsi 4-5.
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4. Jelly: nkibikoresho fatizo bya jelly imeze nkimiti yo hanze cyangwa amavuta.
5. Kuvoma imiti: nkumubyimba mwinshi, kubika amazi


Igihe cyo kohereza: Ugushyingo-17-2022
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