1. Ibikoresho bibisi bya selile
Cellulose ether yo kubaka ni polymer idafite amazi-elegitoronike inkomoko yayo:
Cellulose (ibiti biva mu mbaho cyangwa ipamba), hydrocarbone ya halogene (methane chloride, Ethyl chloride cyangwa izindi ntera ndende), ibice bya epoxy (okiside ya Ethylene, okiside ya propylene, nibindi)
HPMC-Hydroxypropyl Methyl Cellulose Ether
HEC-Hydroxyethyl Cellulose Ether
HEMC-Hydroxyethyl Methyl Cellulose Ether
EHEC-Ethyl Hydroxyethyl Cellulose Ether
MC-methyl selulose ether
2. Ibyiza bya selulose ether
Ibiranga selile ya selile biterwa na:
Impamyabumenyi ya Polymerisation DP Umubare wibice bya glucose-viscosity
Abasimbuye nintera yabo yo gusimburwa, urwego rwuburinganire bwabasimbuye - bagena ikibanza cyo gusaba
Ingano y'ibice —- Gukemura
Kuvura isura (ni ukuvuga gutinda guseswa) —- igihe cyo kwijimisha kijyanye na pH agaciro ka sisitemu
Impamyabumenyi yo Guhindura —- Kunoza imitekerereze ya sag no gukora bya selile ether.
3. Uruhare rwa selile ether - kubika amazi
Cellulose ether ni urunigi rwa polymer rugizwe na β-D-glucose. Itsinda rya hydroxyl muri molekile hamwe na atome ya ogisijeni kuri ether ihuza umusemburo wa hydrogène hamwe na molekile y’amazi, ibyo bikaba byerekana molekile y’amazi hejuru y’urunigi rwa polymer kandi igahuza molekile. Mu munyururu, itinda guhinduka kwamazi kandi igatwarwa nigice cyibanze.
Inyungu zitangwa nuburyo bwo kubika amazi ya selile ethers:
Ntibikenewe koza urwego shingiro, uburyo bwo kuzigama
kubaka neza
imbaraga zihagije
4. Uruhare rwa selile ether - ingaruka zo kubyimba
Ether ya selile irashobora kongera ubufatanye hagati yibigize gypsumu ishingiye kuri minisiteri, ibyo bikaba bigaragarira mu kongera ubwinshi bwa minisiteri.
Inyungu nyamukuru zitangwa no kubyibuha kwa selile ya selile ni:
Mugabanye ivu
Ongera gufatira kumurongo
Mugabanye kugabanuka kwa minisiteri
gumana na minisiteri
5. Uruhare rwa selile ether - ibikorwa byubuso
Ether ya selile irimo amatsinda ya hydrophilique (hydroxyl group, ether bond) hamwe na hydrophobique (matsinda ya methyl, amatsinda ya Ethyl, impeta ya glucose) kandi ni surfactant.
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Inyungu nyamukuru zitangwa nigikorwa cyo hejuru cya selile ethers ni:
Ingaruka zo guhumeka ikirere (gusiba neza, ubucucike buke, modulus nkeya ya elastike, kurwanya ubukonje)
Gutose (byongera gufatira hamwe)
6. Ibisabwa bya gypsumu yumucyo wa selile ya ether
(1). Kubika amazi meza
(2). Gukora neza, nta guteka
(3). Gusiba neza
(4). Kurwanya cyane
(5). Ubushyuhe bwa gel buri hejuru ya 75 ° C.
(6). Igipimo cyo gusesa vuba
(7). Nibyiza kugira ubushobozi bwo kwinjiza umwuka no guhagarika umwuka mubi muri minisiteri
11. Nigute ushobora kumenya urugero rwa selile ether
Kuhomesha plaster, birakenewe kugumana amazi ahagije muri minisiteri mugihe kirekire kugirango ugire imikorere myiza kandi wirinde kumeneka hejuru. Muri icyo gihe, selulose ether igumana amazi akwiye igihe kinini kugirango minisiteri igire gahunda ihamye.
Ingano ya selulose ether iterwa na:
Viscosity ya selile ether
Igikorwa cyo gukora selile ya ether
Ibirimo Gusimbuza no Gukwirakwiza Cellulose Ether
Ingano Ingano Ikwirakwizwa rya Cellulose Ether
Ubwoko nibigize gypsumu ishingiye kuri minisiteri
Ubushobozi bwo kwinjiza amazi murwego rwibanze
Gukoresha Amazi Kubisanzwe Bisanzwe bya Gypsumu ishingiye kuri Mortar
Gushiraho igihe cya gypsumu ishingiye kuri minisiteri
Ubwinshi bwubwubatsi nibikorwa byubwubatsi
Imiterere yubwubatsi (nkubushyuhe, umuvuduko wumuyaga, nibindi)
Uburyo bwo kubaka (gusiba intoki, gutera imashini)
Igihe cyo kohereza: Mutarama-18-2023