Hydroxypropyl starch ether (HPS)nacellulose etherbụ abụọ nkịtị ewu chemical mgbakwunye, ọtụtụ ebe na-eji ụlọ ihe, dị ka ngwa agha, putty ntụ ntụ, coatings, wdg Ọ bụ ezie na ha nwere myirịta na ụfọdụ Njirimara, e nwere ịrịba ọdịiche na ọtụtụ akụkụ dị ka raw material isi mmalite, chemical Ọdịdị, anụ ahụ Njirimara. , mmetụta ngwa, na ọnụ ahịa.
1. Isi ihe akụrụngwa na usoro kemịkal
Hydroxypropyl starch ether (HPS)
HPS dabere na starch eke eke wee nweta site na mmeghachi omume mgbanwe etherification. Isi akụrụngwa ya bụ ọka, ọka wit, poteto na ahịhịa ndị ọzọ sitere n'okike. Ihe mejupụtara molekul starch bụ nkeji glucose jikọtara ya na njikọ α-1,4-glycosidic yana obere ego nke njikọ α-1,6-glycosidic. Mgbe hydroxypropylation gasịrị, a na-ewebata otu hydroxypropyl hydrophilic n'ime usoro molekụla HPS, na-enye ya ụfọdụ njupụta, njigide mmiri na ọrụ mgbanwe.
cellulose ether
A na-enweta cellulose ethers site na cellulose eke, dị ka owu ma ọ bụ osisi. Ihe mejupụtara cellulose bụ nkeji glucose jikọtara ya na njikọ β-1,4-glycosidic. Cellulose ethers nkịtị gụnyere hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), hydroxyethyl cellulose (HEC), wdg Ndị a ogige ewebata dị iche iche substituents site etherification mmeghachi omume na nwere elu chemical kwụsie ike na anụ ahụ Njirimara.
2. Njirimara anụ ahụ
Njirimara arụmọrụ nke HPS
Ọkpụkpụ: HPS nwere mmetụta na-agbapụta nke ọma, ma e jiri ya tụnyere cellulose ether, ike ya na-esikwu ike na-esiwanye ike.
Njide mmiri: HPS nwere njide mmiri na-agafeghị oke ma dabara adaba maka ngwa ụlọ dị ala ruo etiti.
Ịrụ ọrụ: HPS nwere ike melite arụ ọrụ nke ngwa agha ma belata nkwụsị n'oge a na-ewu ụlọ.
Okpomọkụ na-eguzogide: HPS na-enwe mmetụta dị ukwuu na okpomọkụ yana ọnọdụ okpomọkụ na-emetụta ya nke ukwuu.
Njirimara arụmọrụ nke cellulose ethers
Ọkpụkpụ: Cellulose ether nwere mmetụta siri ike na-akpụ akpụ ma nwee ike ịbawanye viscosity nke ngwa agha ma ọ bụ putty nke ukwuu.
Njide mmiri: Cellulose ether nwere ezigbo njide mmiri, karịsịa na ọnọdụ okpomọkụ dị elu, nke nwere ike ịgbatị oge oghere nke ngwa agha ma gbochie oke mmiri.
Ịrụ ọrụ: Cellulose ether dị mma n'ịkwalite ịrụ ọrụ ma nwee ike ibelata nsogbu ndị dị ka mgbawa na ntụ ntụ.
Nguzogide okpomọkụ: Cellulose ether nwere ike ime mgbanwe maka mgbanwe okpomọkụ yana ịrụ ọrụ kwụsiri ike.
3. Mmetụta ngwa
Mmetụta ngwa nkeHPS
N'ime ngwa agha akọrọ, HPS na-arụkarị ọrụ nke imeziwanye ikike ịrụ ọrụ, melite njide mmiri, yana ibelata delamination na nkewa. Ọ dị oke ọnụ ahịa ma dabara adaba maka iji n'ọnọdụ ọnọdụ nwere ihe njikwa ọnụ ahịa dị elu, dị ka ntụ ntụ ime ụlọ nkịtị, ngwa agha na-agbada ala, wdg.
Mmetụta ngwa nke cellulose ether
Cellulose ethersA na-ejikarị ngwa agha arụ ọrụ dị elu, ihe nkedo tile, ihe ndị dabeere na gypsum na usoro mkpuchi mgbidi dị n'èzí. Ya elu ndim na mmiri njigide Njirimara nwere ike budata mma bonding ike na mgbochi-slip arụmọrụ nke ihe onwunwe, na bụ karịsịa adabara oru ngo nwere elu chọrọ na-ewu arụmọrụ na okokụre ngwaahịa mma.
4. Ọnụ na nchekwa gburugburu ebe obibi
ọnụ ahịa:
HPS nwere ọnụ ala dị ala ma dabara adaba maka iji ya na ahịa nwere mmetụta ọnụahịa. Cellulose ethers dị oke ọnụ, mana ha na-arụ ọrụ nke ọma ma na-akwụ ụgwọ na-achọ ọrụ owuwu.
Nchedo gburugburu ebe obibi:
Ha abụọ sitere na ihe ndị sitere n'okike ma nwee ọmarịcha gburugburu ebe obibi. Agbanyeghị, n'ihi na a na-eri ihe reagents ole na ole na usoro mmepụta nke HPS, ibu gburugburu ya nwere ike ịdị ala.
5. Ntọala nhọrọ
Arụmọrụ chọrọ: Ọ bụrụ na ị nwere ihe dị elu chọrọ maka ihe na-eme ka ọkpụkpụ na mmiri na-ejide mmiri, ị kwesịrị ịhọrọ cellulose ether; maka ihe ndị dị ọnụ ala mana chọrọ ndozi ụfọdụ na ịrụ ọrụ, ị nwere ike ịtụle iji HPS.
Ihe ngosi eji eme ihe: Ụlọ ọkụ dị elu, mkpuchi mgbidi dị n'èzí, ihe ntanye tile na ihe ngosi ndị ọzọ na-achọ nkwado dị elu na-adaba adaba maka cellulose ether; maka mgbidi ime ụlọ nkịtị ma ọ bụ ngwa agha bụ isi, HPS nwere ike inye azịza akụ na ụba na bara uru.
Hydroxypropyl starch ethernacellulose ether onye ọ bụla nwere uru nke ya ma na-arụ ọrụ dị iche iche n'ihe eji arụ ụlọ. Nhọrọ ahụ kwesịrị ka a tụlee nke ọma dabere na ihe ndị chọrọ ịrụ ọrụ, njikwa ọnụ ahịa, gburugburu ebe obibi na ihe ndị ọzọ nke ọrụ a kapịrị ọnụ iji nweta mmetụta kachasị mma.
Oge nzipu: Nov-21-2024