Polyols: Lisebelisoa tse Tala tsa Merero e Mengata bakeng sa Likopo tsa Liindasteri le tsa Bareki
Masimo a Maholo a Kopo
Indastering ea lik'hemik'hale, li-polyol ke thepa ea bohlokoa bakeng sa ho hlahisa thepa e boima ba limolek'hule tse kang li-polyester, li-polyether le li-polyurethane. Mohlala, ethylene glycol e sebelisoa ho hlahisa polyethylene terephthalate (PET), e sebelisoang haholo libotlolong tsa polasetiki le likhoeleng. Polyethylene glycol (PEG) e sebelisoa ho hlahisa li-surfactants le li-lubricant tse fapaneng. Ho feta moo, li-polyol li ka sebetsa e le li-solvents ho qhala mefuta e fapaneng ea metsoako ea lintho tse phelang, e leng se ntlafatsang katleho ea karabelo.
Indastering ea meriana, li-polyol li sebelisoa haholo e le li-solvents, li-plasticizers le li-humectants. Mohlala, propylene glycol le glycerol li sebelisoa hangata ho lokiseng liente, lino tse nooang le mafura ho ntlafatsa ho qhibiliha ha meriana le botsitso. Ho feta moo, li-polyol li ka sebelisoa ho hlahisa metsoako ea lithethefatsi e laoloang, e laolang sekhahla sa ho lokolloa ha meriana.
Indastering ea lijo, li-polyol li sebelisoa e le li-sweeteners, li-humectant le li-emulsifier. Mohlala, glycerol le polyethylene glycol li ka sebelisoa tlhahisong ea li-confectionery, lintho tse besitsoeng le lino tse tahang, tse fanang ka monate le ho boloka mongobo. Ho feta moo, li-polyol li ka sebelisoa ho fetola sebopeho le maikutlo a molomo oa lijo, ho eketsa nako ea tsona ea ho boloka lijo.
Indastering ea litlolo le tlhokomelo ea letlalo, li-polyol li sebelisoa haholo e le li-humectants le li-emulsifier. Mohlala, propylene glycol le glycerol li ka monya mongobo, tsa boloka letlalo le moriri li le metsi. Ho feta moo, li-polyol li ka sebelisoa tlhahisong ea li-sunscreen, li-shampoo le li-conditioner, tse fanang ka litlamorao tsa mongobo le ho tlotsa.
Indastering ea polasetiki, li-polyol li sebelisoa e le li-plasticizer ho ntlafatsa ho tenyetseha le ho sebetsa ha polasetiki. Mohlala, glycerol le polyethylene glycol li ka sebelisoa e le li-plasticizer bakeng sa polyvinyl chloride (PVC), ho ntlafatsa ho tenyetseha ha eona le ho tšoarella ha eona. Ho feta moo, li-polyol li ka sebelisoa ho hlahisa li-plastiki tse bolang, ho fokotsa tšusumetso ea tikoloho.
Indastering ea ho roala le enke, li-polyol li sebelisoa e le li-solvent le li-emulsifier. Li ka qhala mefuta e fapaneng ea li-resin le li-pigment, li fana ka thepa e ntle ea ho etsa filimi. Mohlala, polyethylene glycol e ka sebelisoa ho hlahisa li-coating le enke tse thehiloeng metsing, e fanang ka litharollo tse mosa tikolohong le tse sebetsang hantle.
Litlhaloso
| Lebitso la Sehlahisoa | Polyols ea Polyester | |||||||||
| Ponahalo | Mokelikeli o tiileng kapa o tiileng o se nang 'mala ho isa ho o mosehla o bobebe | |||||||||
| Boima ba limolek'hule | 500-5000 g/mol | |||||||||
| Sebaka sa ho bela | >200 | |||||||||
| Bohloeki | 98%,99.5% | |||||||||
| Botenya | 1.10-1.15 | |||||||||
| Khoutu ea HS | 3907910000 | |||||||||
| Kopo | Liaparo tsa polyurethane, enke; liphaephe tsa lieta, litiiso, mabili | |||||||||
Leqephe la Taolo ea Boleng
| Lebitso la Sehlahisoa | Polyols ea Polyester | ||||||
| NTHO | E tloaelehileng | Sephetho | |||||
| Chroma (APHA) | ≤30 | 11 | |||||
| Ho thibana ha mocheso ho 25℃ (mPas) | 1100-1500 | 1296 | |||||
| Sekhahla sa Metsi (%) | ≤0.08 | 0.017 | |||||
| Boleng ba Hydroxyl(mgKOH/g) | 32.5-35.5 | 34.2 | |||||
| Boleng ba Asiti (meKOH/s) | ≤0.08 | 0.029 | |||||
| Boleng ba pH | 5.0-7.5 | 6.7 | |||||
| K+(mgkg) | ≤5 | 1.0 | |||||
| Qetello | Tšoanelehang | ||||||
Ka kakaretso
Ka bokhutšoanyane, li-polyol, e le lisebelisoa tsa bohlokoa tsa lik'hemik'hale tse tala tsa tlhaho, li bapala karolo ea bohlokoa liindastering tse ngata. Ha li ntlafatse ts'ebetso ea sehlahisoa le boleng feela empa li boetse li tšehetsa nts'etsopele ea indasteri ea sejoale-joale. Ka tsoelo-pele e tsoelang pele ea theknoloji, menyetla ea ts'ebeliso ea li-polyol e tla ba kholo le ho feta.