Hydroxypropyl starch ether-HPS

Hydroxypropyl starch ether (HPS) bụ ihe na-emepụta starch emezigharịrị nke kemịkalụ nke na-ahụta ebe niile na ụlọ ọrụ dị iche iche n'ihi njirimara ya pụrụ iche. A na-enweta onyinye a site na iji propylene oxide meghachi omume starch, na-eduga na nnọchi nke otu hydroxyl na molekul starch na otu hydroxypropyl. Ngwaahịa a na-esi na ya pụta na-egosipụta nkwalite mmiri solubility, nkwụsi ike, viscosity, na ihe na-emepụta ihe nkiri ma e jiri ya tụnyere starch obodo.

1. Structure na Njirimara:

Hydroxypropyl starch ether nwere usoro dị mgbagwoju anya sitere na ngbanwe nke molekul starch. Starch bụ polysaccharide nke mejupụtara nkeji glucose jikọtara ya na njikọ glycosidic. Usoro hydroxypropylation gụnyere ngbanwe nke otu hydroxyl (-OH) n'ime molekul starch na otu hydroxypropyl (-OCH2CHOHCH3). Mgbanwe a na-agbanwe njirimara anụ ahụ na kemịkalụ nke starch, na-enye njirimara emelitere.

Ogo nke nnọchi (DS) bụ oke dị oke mkpa nke na-ekpebi oke hydroxypropylation. Ọ na-anọchi anya nkezi ọnụọgụ hydroxypropyl dị n'otu glucose ọ bụla dị na molekul starch. Ụkpụrụ DS dị elu na-egosi mgbanwe mgbanwe dị ukwuu, na-eduga na mgbanwe dị ukwuu na njirimara starch.

2.Hydroxypropyl starch ether na-egosipụta ọtụtụ ihe na-achọsi ike:

Mmiri Solubility: HPS na-egosi nkwalite solubility na mmiri ma e jiri ya tụnyere starch obodo, na-eme ka ọ dị mma maka ngwa dị iche iche ebe achọrọ usoro mmiri.

Viscosity: Ọnụnọ nke otu hydroxypropyl na-eme ka viscosity dịwanye elu na ngwọta HPS, nke bara uru na ngwa ndị na-agba agba dị ka na adhesives, mkpuchi, na ihe owuwu.

Ikike imepụta ihe nkiri: HPS nwere ike mepụta ihe nkiri na-agbanwe agbanwe na nke doro anya mgbe ihicha, na-enye ihe mgbochi na mgbochi mmiri. Ihe onwunwe a bara uru na ngwa dị ka ihe nkiri oriri, mkpuchi na ihe nkwakọ ngwaahịa.

Nkwụsi ike: Hydroxypropyl starch ether na-egosipụta nkwụsi ike dị mma megide okpomọkụ, shiee, na mmebi kemịkalụ ma e jiri ya tụnyere starch obodo, na-agbasawanye uru ya na gburugburu na usoro dị iche iche.

Ndakọrịta: HPS dakọtara na ọtụtụ ihe mgbakwunye, polymers, na ihe ndị na-emepụta ihe, na-eme ka o jiri ya mee ihe n'ụdị nwere ihe mgbagwoju anya.

3. Ngwa:

Hydroxypropyl starch ether na-achọta ngwa dị ukwuu n'ofe ụlọ ọrụ dị iche iche n'ihi njirimara ya. Ụfọdụ ngwa igodo gụnyere:

Ihe eji arụ ọrụ: A na-eji HPS dị ka ihe ngbanwe rheology, onye na-ebu ibu, na onye na-ejigide mmiri n'ime ngwaahịa simenti, plasta gypsum, adhesives tile, na ngwa agha. Ọ na-eme ka arụ ọrụ, nrapado, na nrụ ọrụ nke ihe ndị a dịkwuo mma.

Nri na ihe ọṅụṅụ: N'ụlọ ọrụ nri, HPS na-arụ ọrụ dị ka ihe nkwụsi ike, thickener, na texturizer na ngwaahịa ndị dị ka ofe, sauces, desserts mmiri ara ehi, na ihe ndị na-esi ísì ụtọ. Ọ na-akwalite mmetụta ọnụ, nkwụsi ike, na nkwụsi ike shelf na-emetụtaghị uto ma ọ bụ isi.

Ọgwụ: A na-eji Hydroxypropyl starch ether eme ihe n'ụdị ọgwụ dị ka ihe na-ekekọta, ihe na-emebi emebi, na onye na-ewepụta ihe na-achịkwa n'ichepụta mbadamba nkume. Ọ na-eme ka mkpakọ mbadamba nkume dị mfe, na-akwalite mwepụta otu ọgwụ, ma na-eme ka nnabata ndị ọrịa dịkwuo mma.

Ngwaahịa Nlekọta Onwe Onye: A na-etinye HPS n'ime ihe ịchọ mma, ụlọ mposi, na ngwaahịa nlekọta onwe onye dị ka ihe na-agba agba, emulsifier, na ihe nkiri mbụ. Ọ na-eme ka udidi ngwaahịa, nkwụsi ike, na njirimara mmetụta n'ụdị dị ka ude, lotions, na ngwaahịa nlekọta ntutu.

Akwụkwọ na akwa: N'ime ụlọ ọrụ akwụkwọ, HPS na-arụ ọrụ dị ka onye na-ahụ maka nha elu, ihe mkpuchi mkpuchi, na nkwalite ike iji melite ogo akwụkwọ, mbipụta na akụrụngwa ike. Na textiles, a na-eji ya dị ka onye na-emepụta ihe na-enye ike na ire ụtọ na akwa.

4.Uru:

Iji hydroxypropyl starch ether eme ihe na-enye ọtụtụ uru nye ndị nrụpụta, ndị na-emepụta ihe na ndị ọrụ njedebe:

Arụmọrụ emelitere: HPS na-akwalite arụmọrụ nke ngwaahịa dị iche iche site n'inye ihe ndị a na-achọsi ike dị ka njikwa viscosity, nkwụsi ike, nrapado, na nhazi ihe nkiri.

Ntughari: Nkwekọrịta ya na ihe ndị ọzọ na ihe ndị ọzọ na-enye ohere maka nhazi dịgasị iche iche n'ofe ụlọ ọrụ dị iche iche, na-enyere aka ịmepụta ngwaahịa ọhụrụ.

Ọnụ ahịa bara uru: N'agbanyeghị nkwalite ya, HPS na-enye ngwọta dị ọnụ ahịa ma e jiri ya tụnyere mgbakwunye ma ọ bụ ihe mgbakwunye ọzọ, na-enye aka na nchekwa ego n'ozuzu ya na nhazi.

Nrube isi n'usoro iwu: HPS na-ezute ụkpụrụ nchịkwa maka nchekwa, ịdịmma na ndakọrịta gburugburu ebe obibi, na-ahụ na nnabata na ụkpụrụ na ụkpụrụ dị na mpaghara dị iche iche.

Njigide: Ihe mgbakwasị ụkwụ dabere na Starch dị ka HPS sitere na akụrụngwa enwere ike imeghari, na-eme ka ha bụrụ ihe ọzọ dị mma na gburugburu ebe obibi.

ihe mgbakwunye mmanụ ala. Biodegradaability ha na-enye aka n'ihu na mbọ nkwado.

hydroxypropyl starch ether (HPS) bụ ngwa ngwa bara uru nke nwere ngwa dị iche iche n'ofe ụlọ ọrụ sitere na owuwu na nri ruo na ọgwụ na nlekọta onwe onye. Ngwongwo ya pụrụ iche, gụnyere nkwalite solubility, viscosity, nkwụsi ike, na ike imepụta ihe nkiri, na-eme ka ọ bụrụ ihe dị mkpa n'ọtụtụ usoro. Ka ụlọ ọrụ na-aga n'ihu na-achọ ihe ndị na-adigide na arụ ọrụ dị elu, a na-atụ anya na ọchịchọ HPS ga-eto eto, na-ebuwanye ihe ọhụrụ na ngwa n'ọdịnihu.