1. Aha ngwaahịa:
01. Aha kemịkal: hydroxypropyl methylcellulose
02. N'uju aha na Bekee: Hydroxypropyl Methyl Cellulose
03. Ndebiri Bekee: HPMC
2. Njirimara anụ ahụ na kemịkalụ:
01. Ọdịdị: ọcha ma ọ bụ na-acha ọcha ntụ ntụ.
02. Nha nha; ọnụego ngafe nke 100 ntupu karịrị 98.5%; ngafe nke 80 ntupu karịrị 100%.
03. Carbonization okpomọkụ: 280 300 ℃
04. Njupụta pụtara ìhè: 0.25 ~ 0.70 / cm3 (na-emekarị gburugburu 0.5g / cm3), ike ndọda kpọmkwem 1.26-1.31.
05. Okpomọkụ agba agba: 190～200℃
06. Esemokwu dị n'elu: 2% ngwọta mmiri bụ 42 ~ 56dyn/cm.
07. Soluble na mmiri na ụfọdụ ihe mgbaze, dị ka ethanol / mmiri, propanol / mmiri, trichloroethane, wdg na nha kwesịrị ekwesị.
Aqueous ngwọta na-arụ ọrụ elu. Nghọta dị elu, arụmọrụ kwụsiri ike, gel okpomọkụ nke ngwaahịa nwere nkọwa dị iche iche
Dị iche iche, solubility mgbanwe na viscosity, na ala nke viscosity, ukwuu solubility, arụmọrụ nke dị iche iche nkọwa nke hydroxypropyl methylcellulose (HPMC) nwere ụfọdụ iche, mgbasa nke hydroxypropyl methylcellulose (HPMC) na mmiri adịghị emetụta PH uru mmetụta. .
08. Site na mbelata nke ọdịnaya methoxyl, ebe gel na-abawanye, solubility mmiri na-ebelata, ọrụ elu nke hydroxypropyl methylcellulose (HPMC) na-ebelatakwa.
09. Hydroxypropyl methylcellulose (HPMC) nwekwara ike ndim, nguzogide nnu, ntụ ntụ ntụ dị ala, nkwụsi ike PH, njigide mmiri, nkwụsi ike nke akụkụ, ihe na-emepụta ihe nkiri magburu onwe ya, na ọtụtụ nkwụsị nke enzyme, àgwà dispersion dị ka mmekọahụ na adhesiveness.
Atọ, njirimara hydroxypropyl methylcellulose (HPMC):
Ngwaahịa a na-ejikọta ọtụtụ ihe anụ ahụ na kemịkal ka ọ bụrụ ngwaahịa pụrụ iche nwere ọtụtụ ojiji, yana njirimara dị iche iche bụ ndị a:
(1) Njide mmiri: Ọ nwere ike ijide mmiri n'elu ebe ndị na-adịghị mma dịka mbadamba ciment na brik.
(2) Nhazi ihe nkiri: Ọ nwere ike ịmepụta ihe nkiri na-egbuke egbuke, siri ike na nke dị nro na mmanu mmanu mmanu.
(3) Ihe na-edozi ahụ: Ngwaahịa a bụ soluble na ụfọdụ ihe mgbaze organic, dị ka ethanol / mmiri, propanol / mmiri, dichloroethane, na ihe mgbaze nke mejupụtara abụọ ihe mgbaze organic.
(4) Thermal gelation: Mgbe mmiri mmiri ngwọta nke ngwaahịa na-ekpo ọkụ, ọ ga-etolite a gel, na kpụrụ gel ga-aghọ ihe ngwọta ọzọ mgbe jụrụ.
(5) Ọrụ elu: Nye ọrụ elu na ngwọta iji nweta emulsification chọrọ na colloid nchebe, yana nkwụsị nke oge.
(6) nkwusioru: Ọ nwere ike igbochi mmiri ozuzo nke ihe siri ike, si otú a na-egbochi nhazi nke sedimenti.
(7) Colloid nchebe: ọ nwere ike igbochi ụmụ irighiri mmiri na ụmụ irighiri mmiri ka ọ ghara ịchịkọta ma ọ bụ ịgbakọta.
(8) Adhesiveness: Eji ya mee ihe maka pigmenti, ngwaahịa ụtaba, na ngwaahịa akwụkwọ, ọ na-arụ ọrụ dị mma.
(9) Mmiri solubility: Enwere ike ịgbaze ngwaahịa ahụ na mmiri dị iche iche, na njedebe kachasị elu bụ nanị viscosity.
(10) Inertness na-abụghị ionic: Ngwaahịa a bụ cellulose ether na-abụghị ionic, nke anaghị ejikọta ya na nnu ígwè ma ọ bụ ion ndị ọzọ na-emepụta ihe na-adịghị edozi.
(11) Acid-base kwụsie ike: adabara maka ojiji n'ime nso nke PH3.0-11.0.
(12) Enweghị ụtọ na enweghị isi, ọ naghị emetụta metabolism; eji dị ka nri na ọgwụ mgbakwunye, ha agaghị metabolized na nri na ha agaghị enye calorie.
4. Usoro mgbasa nke Hydroxypropyl methylcellulose (HPMC):
Mgbe a na-agbakwunye ngwaahịa hydroxypropyl methylcellulose (HPMC) na mmiri, ha ga-agbakọta wee gbazee, mana mgbaze a na-adị ngwa ngwa ma sie ike. Enwere ụzọ mgbasa atọ atụpụtara n'okpuru, ndị ọrụ nwere ike họrọ usoro kachasị adaba dịka ojiji ha siri dị:
1. Usoro mmiri ọkụ: Ebe ọ bụ na hydroxypropyl methylcellulose (HPMC) adịghị agbaze n'ime mmiri ọkụ, a pụrụ ịgbasa mmalite nke hydroxypropyl methylcellulose (HPMC) na mmiri ọkụ, mgbe ahụ, mgbe ọ dị jụụ, a na-akọwa usoro atọ A na-ahụkarị. so:
1). Tinye mmiri ọkụ achọrọ n'ime akpa ahụ wee kpoo ya ihe dịka 70 Celsius. Nke nta nke nta tinye hydroxypropyl methylcellulose (HPMC) n'okpuru nwayọọ edemede, na hydroxypropyl methylcellulose (HPMC) na-amalite sere n'elu n'elu mmiri, wee jiri nwayọọ nwayọọ na-etolite a slurry, jụụ slurry n'okpuru edemede .
2). Kpoo 1/3 ma ọ bụ 2/3 (ego achọrọ) nke mmiri n'ime akpa wee kpoo ya ruo 70 Celsius. Dị ka usoro nke 1 si dị, gbasasịa hydroxypropyl methylcellulose (HPMC) iji kwadebe slurry mmiri ọkụ wee tinye ihe fọdụrụ nke mmiri oyi ma ọ bụ mmiri ice n'ime akpa ahụ, tinyezie hydroxypropyl methylcellulose (HPMC) nke a kpọtụrụ aha n'elu. mmiri oyi, ma kpalie, wee kpoo ngwakọta ahụ.
3). Tinye 1/3 ma ọ bụ 2/3 nke mmiri achọrọ n'ime akpa wee kpoo ya ruo 70 Celsius. Dị ka usoro nke 1 si dị, gbasasịa hydroxypropyl methylcellulose (HPMC) iji kwadebe slurry mmiri ọkụ; A na-agbakwunye ihe fọdụrụ nke mmiri oyi ma ọ bụ ice mmiri na mmiri ọkụ na-ekpo ọkụ ma mee ka ngwakọta ahụ dị jụụ mgbe ọ kpalitere.
2. Usoro ngwakọta ntụ ntụ: hydroxypropyl methylcellulose (HPMC) ntụ ntụ na nha nha ma ọ bụ karịa nke ihe ndị ọzọ na-emepụta ntụ ntụ na-agbasasị n'ụzọ zuru ezu site na ngwakọta akọrọ, wee gbazee na mmiri, mgbe ahụ, hydroxypropyl methylcellulose Base cellulose (HPMC) nwere ike gbazee na-enweghị agglomeration. . 3. Organic mgbaze wetting usoro: tupu-achụsasịa ma ọ bụ mmiri hydroxypropyl methylcellulose (HPMC) na organic solvents dị ka ethanol, ethylene glycol ma ọ bụ mmanụ, na mgbe igbari ya na mmiri. N'oge a, hydroxypropyl methylcellulose (HPMC) nwekwara ike agbaze nke ọma.
5. Isi ojiji nke hydroxypropyl methylcellulose (HPMC):
Enwere ike iji Hydroxypropyl methylcellulose (HPMC) mee ihe dị ka ihe na-agba agba, onye na-ekesa, emulsifier na onye na-emepụta ihe nkiri. Enwere ike iji ngwaahịa ya dị na ụlọ ọrụ mmepụta ihe na kemịkalụ kwa ụbọchị, ngwa elektrọn, resins sịntetik, ihe owuwu na mkpuchi.
1. polymerization nkwusioru:
Na mmepụta nke resins sịntetik dị ka polyvinyl chloride (PVC), polyvinylidene chloride na ndị ọzọ copolymers, a na-ejikarị polymerization nkwusioru eme ihe na ọ dị mkpa iji mee ka nkwụsịtụ nke monomers hydrophobic dị na mmiri. Dị ka polymer soluble mmiri, ngwaahịa hydroxypropyl methylcellulose (HPMC) nwere ọrụ elu dị mma ma na-eme ihe dị ka onye na-ahụ maka nchebe colloidal, nke nwere ike igbochi nchịkọta nke polymer. Ọzọkwa, ọ bụ ezie na hydroxypropylmethylcellulose (HPMC) bụ polymer soluble mmiri, ọ bụkwa ubé soluble na hydrophobic monomers ma na-abawanye porosity nke monomers site na nke polymeric ahụ na-emepụta, nke mere na ọ nwere ike na-enye polymers na magburu onwe ikike iji wepụ ihe fọdụrụ monomers. ma kwalite absorption nke plasticizers.
2. Na nhazi nke ihe owuwu ụlọ, hydroxypropyl methylcellulose (HPMC) nwere ike iji:
1). Ihe ntanye na ihe mkpuchi maka teepu ntanye nke dabeere na gypsum;
2). Njikọ nke brik dabeere ciment, taịl nile na ntọala;
3). stucco dabeere na plasterboard;
4). plasta nhazi nke dabeere na ciment;
5). Na usoro nke agba na agba agba.
Oge nzipu: Mee-24-2023