1. Aha ngwaahịa:
01. Aha kemịkalụ: hydroxypropyl methylcellulose
02. Aha zuru oke n'asụsụ Bekee: Hydroxypropyl Methyl Cellulose
03. Mkpirisi Bekee: HPMC
2. Njirimara anụ ahụ na kemịkalụ:
01. Ọdịdị: ntụ ntụ ọcha ma ọ bụ nke na-acha ọcha.
02. Nha nke ihe ndị dị n'ime ya; ọnụego ngafe nke ihe 100 karịrị 98.5%; ọnụego ngafe nke ihe 80 karịrị 100%.
03. Okpomọkụ kabọn: 280~300℃
04. Njupụta doro anya: 0.25~0.70/cm3 (ọ na-abụkarị ihe dị ka 0.5g/cm3), ike ndọda kpọmkwem 1.26-1.31.
05. Okpomọkụ agba: 190~200℃
06. Nrụgide elu: 2% mmiri mmiri bụ 42~56dyn/cm.
07. A na-agbaze n'ime mmiri na ụfọdụ ihe mgbaze, dịka ethanol/mmiri, propanol/mmiri, trichloroethane, wdg. n'ogo kwesịrị ekwesị.
Ngwọta mmiri na-arụ ọrụ n'elu. Nnukwu nghọta, arụmọrụ kwụsiri ike, okpomọkụ gel nke ngwaahịa nwere nkọwapụta dị iche iche.
Dị iche, mgbaze na-agbanwe ka viscosity si dị, obere viscosity na-ebelata, ka mgbaze na-abawanye, arụmọrụ nke nkọwapụta dị iche iche nke hydroxypropyl methylcellulose (HPMC) nwere ụfọdụ ọdịiche, mgbaze nke hydroxypropyl methylcellulose (HPMC) n'ime mmiri anaghị emetụta mmetụta uru PH.
08. Ka ọnụọgụgụ methoxyl na-ebelata, isi ihe gel na-abawanye, mmiri na-agbaze na-ebelata, ọrụ elu nke hydroxypropyl methylcellulose (HPMC) na-ebelatakwa.
09. Hydroxypropyl methylcellulose (HPMC) nwekwara ikike ime ka ihe sie ike, iguzogide nnu, ntụ ntụ ntụ dị ala, nkwụsi ike PH, idobe mmiri, nkwụsi ike nha, ihe onwunwe imepụta ihe nkiri dị mma, yana ọtụtụ ihe mgbochi enzyme, njirimara mgbasa dị ka mmekọahụ na nrapado.
Njirimara atọ, hydroxypropyl methylcellulose (HPMC):
Ngwaahịa a na-ejikọta ọtụtụ ihe onwunwe anụ ahụ na kemịkalụ iji bụrụ ngwaahịa pụrụ iche yana ọtụtụ ojiji, ihe onwunwe dị iche iche bụ ndị a:
(1) Nchekwa mmiri: O nwere ike ijide mmiri n'elu oghere dị larịị dịka bọọdụ simenti na brik mgbidi.
(2) Nhazi ihe nkiri: Ọ nwere ike ịmepụta ihe nkiri doro anya, siri ike ma dị nro nke nwere ezigbo iguzogide mmanụ.
(3) Mmiri ihe ndị dị ndụ: Ngwaahịa a na-agbaze n'ime ụfọdụ ihe ndị dị ndụ, dịka ethanol/mmiri, propanol/mmiri, dichloroethane, na sistemụ ihe ndị dị ndụ nke nwere ihe ndị dị ndụ abụọ.
(4) Mkpụcha ọkụ: Mgbe mmiri mmiri nke ngwaahịa ahụ dị ọkụ, ọ ga-aghọ gel, gel ahụ a kpụrụ akpụ ga-aghọkwa ihe ngwọta ọzọ mgbe ọ jụrụ oyi.
(5) Ọrụ elu: Nye ọrụ elu n'ime ngwọta ahụ iji nweta emulsification achọrọ na colloid nchebe, yana nhazi usoro.
(6) Nkwụsịtụ: Ọ nwere ike igbochi mmiri ozuzo nke ihe siri ike, si otú a gbochie mmepụta nke ihe ndị na-adịghị mma.
(7) Colloid nchebe: ọ nwere ike igbochi ntapụ mmiri na ihe ndị dị n'ime ya ịgbakọta ma ọ bụ ịgbakọta.
(8) Nrapado: A na-eji ya eme ihe dị ka ihe e ji agwakọta agba, ngwaahịa ụtaba, na ngwaahịa akwụkwọ, ọ na-arụ ọrụ nke ọma.
(9) Mmiri na-agbaze: Enwere ike ịgbaze ngwaahịa a na mmiri n'ọtụtụ dị iche iche, oke ya na-ejedebe naanị site na viscosity.
(10) Enweghị ike ionic: Ngwaahịa a bụ cellulose ether nke na-abụghị ionic, nke na-anaghị ejikọta ya na nnu ígwè ma ọ bụ ion ndị ọzọ iji mepụta ihe ndị na-agbaze agbaze.
(11) Nkwụsi ike nke isi ihe dị n'ime acid: dị mma maka ojiji n'ime oke PH3.0-11.0.
(12) Enweghị ụtọ na isi, metabolism anaghị emetụta ya; a na-eji ha eme ihe dị ka ihe mgbakwunye nri na ọgwụ, ha agaghị agbanwe agbanwe na nri ma ha agaghị enye kalori.
4. Usoro mgbasa nke Hydroxypropyl methylcellulose (HPMC):
Mgbe etinyere ngwaahịa hydroxypropyl methylcellulose (HPMC) ozugbo na mmiri, ha ga-agbakọta ma gbazee, mana mgbaze a na-adị nwayọ ma sie ike. E nwere ụzọ mgbaze atọ a tụrụ aro n'okpuru, ndị ọrụ nwekwara ike ịhọrọ ụzọ kachasị mma dịka ojiji ha si dị:
1. Usoro mmiri ọkụ: Ebe ọ bụ na hydroxypropyl methylcellulose (HPMC) anaghị agbaze na mmiri ọkụ, a pụrụ ịgbasa ọkwa mbụ nke hydroxypropyl methylcellulose (HPMC) n'otu n'otu na mmiri ọkụ, mgbe emechara ka ọ dị jụụ, a kọwara usoro atọ A dịka ndị a:
1). Tinye mmiri ọkụ achọrọ n'ime akpa ahụ ma kpoo ya ọkụ ruo ihe dị ka 70°C. Tinye hydroxypropyl methylcellulose (HPMC) nwayọ nwayọ, hydroxypropyl methylcellulose (HPMC) na-amalite ise n'elu mmiri ahụ, wee jiri nwayọọ nwayọọ mepụta slurry, mee ka slurry ahụ dị jụụ mgbe a na-akpali ya.
2). Kpoo 1/3 ma ọ bụ 2/3 (ọnụọgụ achọrọ) nke mmiri n'ime akpa ahụ ma kpoo ya ọkụ ruo 70°C. Dịka usoro nke 1 si dị, kesaa hydroxypropyl methylcellulose (HPMC) iji kwadebe mmiri ọkụ. Mgbe ahụ tinye mmiri oyi ma ọ bụ mmiri ice fọdụrụ n'ime akpa ahụ, wee tinye mmiri ọkụ hydroxypropyl methylcellulose (HPMC) nke a kpọtụrụ aha n'elu na mmiri oyi, wee gwakọta ya, wee jụọ ngwakọta ahụ oyi.
3). Tinye 1/3 ma ọ bụ 2/3 nke mmiri achọrọ n'ime akpa ahụ wee kpoo ya ọkụ ruo 70°C. Dịka usoro nke 1 si dị, gbasaa hydroxypropyl methylcellulose (HPMC) iji kwadebe mmiri ọkụ; A na-agbakwunye mmiri oyi ma ọ bụ ice fọdụrụ na mmiri ọkụ ahụ ma mee ka ngwakọta ahụ jụọ oyi mgbe agwakọtara ya.
2. Usoro ngwakọta ntụ ntụ: A na-agbasa ntụ ntụ hydroxypropyl methylcellulose (HPMC) na oke ntụ ntụ ndị ọzọ hà nhata ma ọ bụ karịa site na ngwakọta akọrọ, wee gbazee na mmiri, mgbe ahụ enwere ike ịgbaze hydroxypropyl methylcellulose Base cellulose (HPMC) na-enweghị agglomeration. 3. Usoro ịgbaze ihe mgbaze organic: gbazee hydroxypropyl methylcellulose (HPMC) tupu oge eruo ma ọ bụ mee ka mmiri dị mmiri mmiri na ihe mgbaze organic dị ka ethanol, ethylene glycol ma ọ bụ mmanụ, wee gbazee ya na mmiri. N'oge a, enwere ike ịgbaze hydroxypropyl methylcellulose (HPMC) nke ọma.
5. Ojiji bụ isi nke hydroxypropyl methylcellulose (HPMC):
Enwere ike iji Hydroxypropyl methylcellulose (HPMC) mee ihe dị ka ihe na-eme ka ihe dị arọ, ihe na-agbasa ihe, ihe na-eme ka ihe dị nro, na ihe na-emepụta ihe nkiri. A pụrụ iji ngwaahịa ya dị elu na kemịkalụ kwa ụbọchị, ihe eji emepụta ihe na ngwa eletrọnịkị, ihe e ji emepụta ihe, ihe owuwu na ihe mkpuchi.
1. Nkwusioru polymerization:
N'imepụta resin sịntetik dịka polyvinyl chloride (PVC), polyvinylidene chloride na copolymers ndị ọzọ, a na-ejikarị polymerization suspension eme ihe ma dị mkpa iji mee ka nkwụsịtụ nke monomers hydrophobic dịgide n'ime mmiri. Dịka polymer na-agbaze mmiri, ngwaahịa hydroxypropyl methylcellulose (HPMC) nwere ọrụ dị mma n'elu ma na-arụ ọrụ dị ka ihe nchebe colloidal, nke nwere ike igbochi nchịkọta nke ihe polymer nke ọma. Ọzọkwa, ọ bụ ezie na hydroxypropylmethylcellulose (HPMC) bụ polymer na-agbaze mmiri, ọ na-agbazekwa ntakịrị na monomers hydrophobic ma na-eme ka porosity nke monomers nke a na-esi na ya emepụta ihe polymeric dịkwuo elu, ka o wee nwee ike inye polymers ikike magburu onwe ya iwepụ monomers fọdụrụ ma mee ka nnabata nke plasticizers dịkwuo mma.
2. N'ime nhazi ihe owuwu ụlọ, enwere ike iji hydroxypropyl methylcellulose (HPMC) mee ihe maka:
1) Ihe na-eme ka ihe na-arapara ma na-eme ka ihe dị nro maka teepu gypsum;
2) Njikọ nke brik, taịlị na ntọala nke e ji simenti mee;
3) Stucco nke e ji plastaboard mee;
4) Plasta e ji simenti rụọ;
5). N'ime usoro nke ihe na-ewepụ agba na agba.
Oge ozi: Mee-24-2023