Hydroxypropyl starch ether-HPS

Hydroxypropyl starch ether (HPS) ke motsoako oa starch o fetotsoeng ka lik'hemik'hale o fumanang tšebeliso e pharaletseng liindastering tse fapaneng ka lebaka la thepa ea eona e ikhethang. Motsoako ona o fumanoa ka ho arabela starch ka propylene oxide, e lebisang ho nkeloa sebaka ha lihlopha tsa hydroxyl ka molek'hule ea starch le lihlopha tsa hydroxypropyl. Sehlahisoa se hlahisoang se bonts'a matla a ho qhibiliha ha metsi, botsitso, viscosity, le thepa ea ho etsa lifilimi ha e bapisoa le starch ea tlhaho.

1.Sebopeho le Thepa:

Hydroxypropyl starch ether e na le sebopeho se rarahaneng se bakoang ke ho fetoloa ha molek'hule ea starch. Starch ke polysaccharide e entsoeng ka li-unit tsa tsoekere tse hokahaneng le li-bond tsa glycosidic. Ts'ebetso ea hydroxypropylation e kenyelletsa ho nkela sebaka sa lihlopha tsa hydroxyl (-OH) ka molek'hule ea starch ka lihlopha tsa hydroxypropyl (-OCH2CHOHCH3). Phetoho ena e fetola litšobotsi tsa 'mele le lik'hemik'hale tsa starch, e fana ka litšobotsi tse ntlafetseng.

The degree of substitution (DS) ke parameter ea bohlokoa e khethollang boholo ba hydroxypropylation. E emela palo e tloaelehileng ea lihlopha tsa hydroxypropyl tse hokeletsoeng yuniti e 'ngoe le e 'ngoe ea tsoekere ka molek'hule ea starch. Litekanyetso tse phahameng tsa DS li bontša tekanyo e kholo ea phetoho, e lebisang liphetohong tse kholo tsa thepa ea starch.

2.Hydroxypropyl starch ether e bonts'a lintho tse 'maloa tse lakatsehang:

Motsoako oa Metsi: HPS e bonts'a ho qhibiliha ha metsi ho matlafalitsoeng ha ho bapisoa le starch ea tlhaho, e leng se etsang hore e tšoanelehe bakeng sa lisebelisoa tse fapaneng moo ho hlokahalang metsoako ea metsi.

Viscosity: Ho ba teng ha lihlopha tsa hydroxypropyl ho fana ka viscosity e eketsehileng ho litharollo tsa HPS, e leng molemo ho matlafatsoa lits'ebetsong tse kang likhomaretsi, lirafshoa le thepa ea kaho.

Bokhoni ba ho Etsa Lifilimi: HPS e ka etsa lifilimi tse feto-fetohang le tse pepeneneng ha li omisoa, li fana ka thepa ea tšitiso le ho hanyetsa mongobo. Thepa ena e bohlokoa lits'ebetsong tse kang lifilimi tse jeoang, likoaelo le thepa ea ho paka.

Botsitso: Hydroxypropyl starch ether e bonts'a botsitso bo ntlafetseng khahlanong le mocheso, ho kuta, le ho senyeha ha lik'hemik'hale ha ho bapisoa le starch ea tlhaho, ho atolosa tšebeliso ea eona libakeng tse sa tšoaneng le mekhoa e fapaneng.

Ho lumellana: HPS e lumellana le mefuta e mengata e fapaneng ea li-additives, li-polymers, le metsoako, e nolofalletsang tšebeliso ea eona mekhoeng e nang le metsoako e rarahaneng.

3. Likopo:

Hydroxypropyl starch ether e fumana ts'ebeliso e pharaletseng ho pholletsa le liindasteri tse fapaneng ka lebaka la thepa ea eona e fapaneng. Tse ling tsa lisebelisoa tsa bohlokoa li kenyelletsa:

Lisebelisuoa tsa Kaho: HPS e sebelisoa e le sesebelisoa sa rheology modifier, thickener, le ho boloka metsi lihlahisoa tse entsoeng ka samente, li-plaster tsa gypsum, li-adhesives tsa lithaele le lirafshoa. E ntlafatsa ho sebetsa, ho khomarela, le thepa ea mechine ea lisebelisoa tsena.

Lijo le Seno: Lefapheng la lijo, HPS e hiriloe e le ntho e etsang hore motho a be le botsitso, e teteaneng le e etsang hore mongolo o hlahisoe lihlahisoa tse kang sopho, li-sauces, li-dessert tsa lebese le lintho tse entsoeng ka confectionery. E matlafatsa molomo, ho tsitsisa, le botsitso ba sethala ntle le ho ama tatso kapa monko.

Meriana ea Meriana: Hydroxypropyl starch ether e sebelisoa mefuteng ea meriana e le se tlamellang, se senyang, le ho lokolloa ho laoloang ha ho etsoa matlapa. E nolofatsa khatello ea letlapa, e khothalletsa ho lokolloa ha lithethefatsi tse tšoanang, 'me e ntlafatsa ho latela melao ea mokuli.

Lihlahisoa tsa Tlhokomelo ea Motho: HPS e kenyellelitsoe ho litlolo, matloana, le lihlahisoa tsa tlhokomelo ea motho e le ntho e tenya, emulsifier le filimi ea pele. E ntlafatsa sebopeho sa sehlahisoa, botsitso, le litšobotsi tsa kutlo tse kang litlolo, litlolo le lihlahisoa tsa tlhokomelo ea moriri.

Lipampiri le Masela: Lefapheng la lipampiri, HPS e hiriloe e le sesebelisoa sa boholo ba bokaholimo, sekontiri se koahelang, le se matlafatsang matla ho ntlafatsa boleng ba pampiri, khatiso le thepa ea matla. Ho masela, e sebelisoa e le sesebelisoa sa boholo ho fana ka boima le boreleli ho masela.

4.Melemo:

Tšebeliso ea hydroxypropyl starch ether e fana ka melemo e mengata ho bahlahisi, baetsi ba lihlahisoa le basebelisi ba ho qetela:

Ts'ebetso e Ntlafetseng: HPS e ntlafatsa ts'ebetso ea lihlahisoa tse fapaneng ka ho fana ka thepa e lakatsehang e kang viscosity control, botsitso, ho khomarela le ho etsoa ha lifilimi.

Ho feto-fetoha ha maemo: Ho lumellana ha eona le metsoako le lisebelisoa tse ling ho lumella litlhophiso tse fapaneng ho pholletsa le liindasteri tse ngata, tse nolofalletsang nts'etsopele ea lihlahisoa tse ncha.

Katleho ea Litšenyehelo: Leha e na le thepa e ntlafalitsoeng, HPS e fana ka litharollo tse baballang chelete e ngata ha li bapisoa le litlatsetso kapa metsoako e meng, e tlatsetsang ho bolokeng litšenyehelo ka kakaretso ha ho etsoa litlhare.

Tumellano ea Taolo: HPS e kopana le litekanyetso tsa taolo bakeng sa polokeho, boleng, le tšebelisano ea tikoloho, ho netefatsa hore e latela melao le litekanyetso tse sebetsang libakeng tse fapaneng.

Sustainability: Lintho tse tsoang ho starch tse kang HPS li nkiloe mehloling e ka nchafatsoang, e leng se etsang hore e be mekhoa e meng e se nang botsoalle ho tikoloho.

li-additives tse thehiloeng ho petroleum. Ho senyeha ha tsona ho boetse ho kenya letsoho boitekong ba ho tšoarella.

hydroxypropyl starch ether (HPS) ke motsoako o feto-fetohang le oa bohlokoa o nang le lits'ebetso tse fapaneng ho pholletsa le liindasteri ho tloha ho tsa kaho le lijo ho isa ho tsa meriana le tlhokomelo ea motho ka mong. Mehaho ea eona e ikhethang, ho kenyelletsa ho qhibiliha ho matlafalitsoeng, viscosity, botsitso le bokhoni ba ho etsa lifilimi, e etsa hore e be karolo ea bohlokoa mekhoeng e mengata. Ha liindasteri li ntse li tsoela pele ho batla metsoako ea ts'ebetso e tsitsitseng le e phahameng, tlhoko ea HPS e lebelletsoe ho hola, e tsamaisang boqapi bo bong le lits'ebetso nakong e tlang.