Etarike ya etarh ni ijambo rusange mubyiciro byahinduwe birimo ibinyamisogwe bya ether muri molekile, bizwi kandi nka etherified krah, ikoreshwa cyane mubuvuzi, ibiryo, imyenda, gukora impapuro, imiti ya buri munsi, peteroli nizindi nganda. Uyu munsi turasobanura cyane cyane uruhare rwa krahisi ether muri minisiteri.
Intangiriro kuri Ether Ether
Ibisanzwe kandi bikoreshwa cyane ni ibirayi, ibirayi bya tapioca, ibinyamisogwe byibigori, ibinyamisogwe by ingano, nibindi.
Ibinyamisogwe ni polysaccharide macromolecular igizwe na glucose. Hariho ubwoko bubiri bwa molekile, umurongo nu mashami, bita amylose (hafi 20%) na amylopectine (hafi 80%). Kugirango tunoze imitungo ya krahisi ikoreshwa mubikoresho byubwubatsi, uburyo bwumubiri nubumashini burashobora gukoreshwa muguhindura kugirango imitungo yarwo ibe nziza kubikorwa bitandukanye byubaka.
Ibinyamisogwe birimo ubwoko butandukanye bwibicuruzwa. Nka carboxymethyl starch ether (CMS), hydroxypropyl starch ether (HPS), hydroxyethyl starch ether (HES), cateric krah ether, nibindi bikunze gukoreshwa hydroxypropyl starch ether.
Uruhare rwa hydroxypropyl krahisi ether muri minisiteri
1) Komeza minisiteri, ongera imiti igabanya ubukana, irwanya kugabanuka hamwe na rheologiya ya minisiteri
Kurugero, mukubaka amatafari ya tile, putty, na plaster, cyane cyane ko gutera imashini bisaba amazi menshi, nko muri minisiteri ishingiye kuri gypsumu, ni ngombwa cyane cyane (gypsumu yatewe imashini isaba amazi menshi ariko bizatera kugabanuka gukomeye , ibinyamisogwe Ether irashobora kuzuza iki kibazo).
Amazi meza hamwe no kurwanya sag akenshi usanga bivuguruzanya, kandi kwiyongera kwamazi bizatuma kugabanuka kwa sag. Mortar ifite imiterere ya rheologiya irashobora gukemura neza uku kwivuguruza, ni ukuvuga, iyo hashyizweho imbaraga zo hanze, ububobere bugabanuka, bikongerera imbaraga no gukora pompe, kandi iyo imbaraga zo hanze zivuyemo, ubukonje bwiyongera kandi kurwanya kugabanuka bikagenda neza.
Kuburyo bugezweho bwo kongera tile agace, kongeramo ibinyamisogwe birashobora kunoza kunyerera kwa tile.
2) Amasaha yagutse yo gufungura
Kumatafari ya tile, irashobora kuba yujuje ibisabwa byamavuta adasanzwe (Icyiciro E, 20min yaguwe kugeza 30min kugirango igere 0.5MPa) yongerera igihe cyo gufungura.
Kunoza imiterere yubuso
Etar ya etar irashobora gutuma ubuso bwa gypsum na sima ya sima byoroha, byoroshye kuyikoresha, kandi bifite ingaruka nziza zo gushushanya. Nibyiza cyane guhomeka minisiteri na thin layer decorator nka putty.
Uburyo bwibikorwa bya hydroxypropyl krahisi ether
Iyo krahisi ether ishonga mumazi, izatatana kimwe muri sisitemu ya minisiteri. Kubera ko molekile ya krahisi ifite imiterere y'urusobekerane kandi ikarishye nabi, izakuramo ibice bya sima byuzuye neza kandi ikore nk'ikiraro cyinzibacyuho ihuza sima, bityo bigatanga agaciro kanini k'umusaruro wa slurry birashobora kunoza anti-sag cyangwa anti-kunyerera Ingaruka.
Itandukaniro riri hagati ya hydroxypropyl starch ether na selulose ether
1. Ibinyamisogwe ether irashobora kunoza neza imiti irwanya sag na anti-kunyerera ya minisiteri
Ubusanzwe selulose ether irashobora gusa kunoza ubwiza no kugumana amazi ya sisitemu ariko ntishobora kunoza imitekerereze irwanya kugabanuka no kurwanya kunyerera.
2. Kubyimba no kwiyegeranya
Mubisanzwe, ubwiza bwa selile ya selile bugera ku bihumbi mirongo, mugihe ubwiza bwa etarike ya etarike ari ibihumbi magana kugeza ku bihumbi byinshi, ariko ntibisobanuye ko ether ya krahisi ifite imitungo ikomeye yinjira mu kirere, mugihe ether ya krahisi idafite imitungo yinjira mu kirere. .
5. Imiterere ya molekulire ya selile ether
Nubwo ibinyamisogwe na selile byombi bigizwe na molekile ya glucose, uburyo bwabo bwo kubikora buratandukanye. Icyerekezo cya molekile zose za glucose muri krahisi ni imwe, mugihe irya selile ari ikinyuranyo, kandi icyerekezo cya buri molekile ya glucose yegeranye kiratandukanye. Itandukaniro ryimiterere kandi rigena itandukaniro mumiterere ya selile na krahisi.
Igihe cyo kohereza: Apr-10-2023