Seretse ke motsoako oa samente, lehlabathe le metsi tse sebelisoang indastering ea kaho bakeng sa lits'ebetso tse fapaneng tse kang masonry, plastering le ho lokisa lithaele. Boleng ba seretse bo bohlokoa haholo ho tšoarella le matla a mohaho. Boemo ba moea ba seretse bo phetha karolo e kholo ts'ebetsong ea seretse. Ho ba teng ha li-bubble tsa moea ka har'a seretse ho ntlafatsa ts'ebetso ea eona, ho fokotsa ho fokotseha le ho phunyeha, le ho ntlafatsa thepa ea eona ea ho pata mocheso. Li-cellulose ethers, tse kang hydroxypropylmethylcellulose (HPMC) le methylhydroxyethylcellulose (MHEC), li sebelisoa haholo indastering ea kaho e le li-additives ho ntlafatsa boleng le ts'ebetso ea lirekere. Sengoliloeng sena se bua ka phello ea li-cellulose ethers moeeng oa seretse.
Phello ea cellulose ether moeeng oa seretse:
Moea oa seretse o itšetlehile ka lintlha tse fapaneng tse kang karo-karolelano ea samente ea metsi, tekanyo ea lehlabathe le samente, nako ea ho kopanya le mokhoa oa ho kopanya. Ho eketsoa ha cellulose ethers ho seretse ho ka ama moea oa eona haholo. HPMC le MHEC ke li-polymers tsa hydrophilic tse ka monyang metsi le ho hasana ka ho lekana ka motsoako oa seretse. Li sebetsa e le lisebelisoa tse fokotsang metsi le ho ntlafatsa ho sebetsa ha seretse. Ho kenya li-cellulose ethers ho motsoako oa seretse ho fokotsa bongata ba metsi a hlokahalang ho finyella botsitso bo lakatsehang, kahoo ho fokotsa moea oa seretse.
Leha ho le joalo, phello ea cellulose ethers moeeng oa seretse hase kamehla e leng mpe. Sena se itšetlehile ka tekanyo le mofuta oa cellulose ether e sebelisitsoeng. Ha li sebelisoa ka tekanyo e nepahetseng, li-cellulose ethers li ka eketsa boemo ba moea oa liretse ka ho eketsa botsitso ba tsona le ho fokotsa ho arohana. Cellulose ether e sebetsa e le stabilizer, e ka thibelang ka katleho ho putlama ha li-pores nakong ea ho beha le ho thatafala ha seretse. Sena se eketsa ho tšoarella le matla a seretse.
Ntho e 'ngoe e amang moea oa seretse ke mokhoa o nepahetseng oa ho kopanya. Ho omella ho kopanya ha selulose ether e nang le lirekere ha e khothalletsoe kaha e tla lebisa ho agglomeration ea likaroloana tsa cellulose ether le ho thehoa ha makukuno ka seretse. Ho kgothaletswa ho kopanya metsi kaha ho netefatsa ho hasana homogeneous ea cellulose ether motsoako oa seretse le ho ntlafatsa tshebetso ea eona.
Melemo ea ho sebelisa cellulose ether ka seretse:
Li-cellulose ethers tse kang HPMC le MHEC li fana ka melemo e mengata ha li sebelisoa liretseng. Li ntlafatsa ho sebetsa le ho khomarela seretse, li fokotsa tekanyo ea samente ea metsi le ho eketsa ho tsitsisa ha seretse. Ba matlafatsa ho tšoarella, matla le elasticity ea seretse. Li-cellulose ethers li sebetsa e le li-thickeners le stabilizers 'me li thibela ho putlama ha li-bubble tsa moea nakong ea ho beha le ho thatafala ha seretse. Sena se eketsa khanyetso ea leqhoa, se fokotsa ho honyela le ho ntlafatsa khanyetso ea mapetso. Cellulose ether e boetse e na le thepa e ntle ea ho boloka metsi, ka tsela eo e ntlafatsa pholiso le hydration ea seretse.
Ho akaretsa, HPMC, MHEC le li-ether tse ling tsa cellulose li sebelisoa haholo e le li-additives indastering ea kaho ho ntlafatsa boleng le ts'ebetso ea seretse. Boemo ba moea ba seretse ke ntlha ea bohlokoa e amang ts'ebetso ea eona, 'me ho eketsoa ha cellulose ether ho ka ama haholo moea oa seretse. Leha ho le joalo, phello ea cellulose ethers moeeng oa seretse hase kamehla e leng mpe. Li-cellulose ethers li ka eketsa moea oa seretse le ho ntlafatsa ts'ebetso ea eona haeba li sebelisoa ka tekanyo e nepahetseng le ka mekhoa e nepahetseng ea ho kopanya. Melemo ea ho sebelisa li-cellulose ethers ka seretse e kenyelletsa ho ntlafatsa ho sebetsa, ho khomarela, ho tsitsisa, ho tšoarella, matla le ho phutholoha ha seretse, hammoho le ho fokotsa ho fokotseha le ho ntlafatsa ho hanyetsa ha mapetsong.
Nako ea poso: Aug-22-2023