1. Nchịkọta
Hydroxypropyl Methyl Cellulose (HPMC) bụ ihe na-abụghị ionic cellulose ether nke sitere na ihe polymer eke - cellulose site na usoro usoro kemịkal. Hydroxypropyl methylcellulose (HPMC) bụ ntụ na-enweghị isi, nke na-enweghị ụtọ, ntụ ntụ na-adịghị egbu egbu, nke enwere ike ịgbaze na mmiri oyi iji mepụta ngwọta viscous transperent, nke nwere ọrụ nke ịgbakọ, njikọta, ịgbasa, emulsifying, imepụta ihe nkiri, na nkwusioru , adsorption, gelation, ọrụ elu, njigide mmiri na ihe nchebe colloid.
Enwere ike iji Hydroxypropyl methylcellulose (HPMC) na ihe owuwu ụlọ, mkpuchi, resins synthetic, ceramics, ọgwụ, nri, textiles, ọrụ ugbo, ịchọ mma na ụlọ ọrụ ụtaba.
2, Product nkọwa na nhazi ọkwa Products na-ekewa n'ime mmiri oyi soluble ụdị S na ndị nkịtị ụdị
Nkọwapụtakarị nkeHydroxypropyl Methyl Cellulose
| ngwaahịa | MC | HPMC | ||||
| E | F | J | K | |||
| Methoxy | ọdịnaya (%) | 27.0-32.0 | 28.0-30.0 | 27.0-30.0 | 16.5-20.0 | 19.0-24.0 |
| Ogo nke nnọchi anya | 1.7-1.9 | 1.7-1.9 | 1.8-2.0 | 1.1-1.6 | 1.1-1.6 | |
| Hydroxypropoxy | ọdịnaya (%) | 7.0-12.0 | 4-7,5 | 23.0-32.0 | 4.0-12.0 | |
| Ogo nke nnọchi anya | 0.1-0.2 | 0.2-0.3 | 0.7-1.0 | 0.1-0.3 | ||
| Mmiri (Wt%) | ≤5.0 | |||||
| Ash(Wt%) | ≤1.0 | |||||
| PH uru | 5.0-8.5 | |||||
| Mputa | uzuzu granule ọcha ma ọ bụ ntụ ntụ ọcha | |||||
| Ịdị mma | 80 isi | |||||
| viscosity (mPa.s) | hụ nkọwapụta viscosity | |||||
Nkọwapụta viscosity
| Nkọwapụta | Oke viscosity (mpa.s) | Nkọwapụta | Oke viscosity (mpa.s) |
| 5 | 3 ~ 9 | 8000 | 7000-9000 |
| 15 | 10-20 | 10000 | 9000-11000 |
| 25 | 20-30 | 20000 | 15000-25000 |
| 50 | 40-60 | 40000 | 35000-45000 |
| 100 | 80-120 | 60000 | 46000-65000 |
| 400 | 300-500 | 80000 | 66000-84000 |
| 800 | 700-900 | 100000 | 85000-120000 |
| 1500 | 1200-2000 | 150000 | 130000-180000 |
| 4000 | 3500-4500 | 200000 | ≥180000 |
3,ọdịdị ngwaahịa
Njirimara: Ngwaahịa a bụ ntụ ntụ ọcha ma ọ bụ na-acha ọcha, enweghị isi, enweghị ụtọ naadịghị egbu egbu.
Mmiri solubility na ndim ike: Ngwaahịa a nwere ike igbari na mmiri oyi iji mepụta ngwọta viscous na-enweghị atụ.
Mgbasa na organic solvents: N'ihi na o nwere a ụfọdụ ego nke hydrophobic methoxyl otu, ngwaahịa a nwere ike agbaze na ụfọdụ organic solvents, na nwekwara ike agbaze na ihe mgbaze gwakọtara na mmiri na organic okwu.
Nguzogide nnu: Ebe ọ bụ na ngwaahịa a bụ polymer na-abụghị ionic, ọ kwụsiri ike na ngwọta mmiri nke salts metal ma ọ bụ organic electrolytes.
Ọrụ dị n'elu: Ihe ngwọta mmiri nke ngwaahịa a nwere ọrụ elu, ma nwee ọrụ na njirimara dịka emulsification, colloid nchebe na nkwụsi ike.
Thermal gelation: Mgbe mmiri mmiri ngwọta nke ngwaahịa a na-ekpo ọkụ na a ụfọdụ okpomọkụ, ọ na-aghọ opaque ruo mgbe ọ na-etolite a (poly) flocculation steeti, nke mere na ngwọta na-efunahụ viscosity ya. Ma mgbe jụrụ oyi, ọ ga-aghọ ọzọ ngwọta ngwọta mbụ. Ọnọdụ okpomọkụ nke gelation na-adabere n'ụdị ngwaahịa, ntinye nke ngwọta na ọnụego ọkụ.
Nkwụsi ike PH: viscosity nke ngwọta mmiri nke ngwaahịa a kwụsiri ike n'ime oke PH3.0-11.0.
Mmetụta na-ejigide mmiri: Ebe ọ bụ na ngwaahịa a bụ hydrophilic, enwere ike ịgbakwunye ya na ngwa agha, gypsum, agba, wdg iji nọgide na-enwe mmetụta dị elu nke mmiri na ngwaahịa.
Njide ọdịdị: E jiri ya tụnyere polymers ndị ọzọ na-edozi mmiri, ngwọta mmiri nke ngwaahịa a nwere ihe ndị pụrụ iche viscoelastic. Ihe mgbakwunye ya nwere ikike idobe ọdịdị nke ngwaahịa seramiiki extruded agbanweghị.
Mmanya: Ịtinye ngwaahịa a nwere ike ibelata ọnụ ọgụgụ esemokwu ma melite mmanye nke ngwaahịa seramiiki extruded na ngwaahịa ciment.
Njirimara na-emepụta ihe nkiri: Ngwaahịa a nwere ike ịmepụta ihe nkiri na-agbanwe agbanwe, nke na-egosipụta nke ọma nwere ihe eji arụ ọrụ dị mma, ma nwee ezigbo mmanụ na abụba na-eguzogide.
4. Njirimara anụ ahụ na kemịkal
Oke urughuru: 100 ntupu ngafe ọnụego karịrị 98.5%, 80 ntupu ọnụego ngafe bụ 100%
Carbonization okpomọkụ: 280 ~ 300 ℃
Njupụta pụtara ìhè: 0.25 ~ 0.70/cm kpọmkwem ike ndọda 1.26 ~ 1.31
Okpomọkụ mgbanwe agba: 190 ~ 200 ℃
Esemokwu dị n'elu: 2% ngwọta mmiri bụ 42 ~ 56dyn / cm
Solubility: Soluble na mmiri na ụfọdụ ihe mgbaze, ihe ngwọta mmiri nwere ọrụ elu. Nnukwu nghọta. Arụ ọrụ kwụsiri ike, mgbanwe solubility na viscosity, obere viscosity dị ala, nke ukwuu solubility.
HPMC nwekwara e ji mara nke ndim ike, nnu-eguzogide, PH kwụsie ike, mmiri njide, akụkụ kwụsie ike, magburu onwe film-akpụ onwunwe, na dịgasị iche iche nke enzyme iguzogide, dispersibility na cohesiveness.
5, isi nzube ya
Industrial ọkwa HPMC bụ tumadi ji dị ka a dispersant na mmepụta nke polyvinyl chloride, na bụ isi inyeaka gị n'ụlọnga maka ịkwadebe PVC site nkwusioru polymerization. Tụkwasị na nke a, enwere ike iji ya dị ka onye na-agba agba, stabilizer, emulsifier, excipient, na onye na-ejigide mmiri na-emepụta ihe ndị ọzọ na-emepụta mmanụ petrochemicals, mkpuchi, ihe owuwu ụlọ, ihe ndị na-ese ihe, kemịkalụ ugbo, inks, mbipụta textile na ịcha akwa, ceramik, akwụkwọ. , ịchọ mma, wdg, film akpụ gị n'ụlọnga, wdg The ngwa na sịntetik resins nwere ike ime ka nwetara ngwaahịa nwere àgwà nke mgbe na rụrụ ahụ, adabara kpọmkwem ike ndọda na magburu onwe nhazi arụmọrụ, si otú ihu ọma dochie gelatin na polyvinyl mmanya dị ka dispersants.
Ụzọ mgbasa isii:
(1). Were mmiri ọkụ achọrọ, tinye ya n'ime akpa ma kpoo ya n'elu 80 Celsius C, ma jiri nwayọọ nwayọọ tinye ngwaahịa a n'okpuru mkpali nwayọọ. Cellulose na-ese n'elu mmiri na mbụ, mana ejiri nwayọọ nwayọọ gbasaa ka ọ ghọọ otu slurry. A na-eme ka ihe ngwọta dị mma mgbe ọ na-akpali.
(2). N'aka nke ọzọ, kpoo 1/3 ma ọ bụ 2/3 nke mmiri ọkụ ka ọ dị elu karịa 85 Celsius C, tinye cellulose iji nweta slurry mmiri ọkụ, tinyezie ihe fọdụrụ nke mmiri oyi, nọgide na-akpali akpali, ma mee ka ngwakọta ahụ dị jụụ.
(3). Ntupu nke cellulose dị nnọọ mma, ọ na-adịkwa dị ka obere irighiri ihe n'otu n'otu n'ime ntụ ntụ a kpalitere, ọ na-agbaze ngwa ngwa mgbe ọ zutere mmiri iji mepụta viscosity achọrọ.
(4). Jiri nwayọọ na nke ọma tinye cellulose n'ime ụlọ okpomọkụ, na-akpali akpali ruo mgbe a na-emepụta ngwọta na-egbuke egbuke.
Oge nzipu: Jan-11-2023