1. Bayani
Hydroxypropyl Methyl Cellulose (HPMC) wani ether ne wanda ba na ionic cellulose wanda aka yi daga kayan polymer na halitta - cellulose ta hanyar tsarin sinadarai. Hydroxypropyl methylcellulose (HPMC) wani wari ne, marar ɗanɗano, foda mai canza launin kai ba mai guba ba, wanda za'a iya narkar da shi cikin ruwan sanyi don samar da ingantaccen bayani mai ɗanɗano, wanda yana da ayyuka na thickening, bonding, dispersing, emulsifying, film-forming, da dakatarwa , adsorption, gelation, aikin saman, riƙewar danshi da kaddarorin colloid masu kariya.
Ana iya amfani da Hydroxypropyl methylcellulose (HPMC) a cikin kayan gini, sutura, resins na roba, yumbu, magani, abinci, yadi, noma, kayan kwalliya da masana'antar taba.
2, Product bayani dalla-dalla da kuma rarrabuwa Products aka raba zuwa ruwan sanyi mai soluble irin S da talakawa irin
Ƙididdigar gama gari naHydroxypropyl Methyl Cellulose
| samfur | MC | HPMC | ||||
| E | F | J | K | |||
| Methoxy | abun ciki (%) | 27.0-32.0 | 28.0-30.0 | 27.0-30.0 | 16.5-20.0 | 19.0-24.0 |
| Digiri na maye gurbin DS | 1.7 ~ 1.9 | 1.7 ~ 1.9 | 1.8-2.0 | 1.1 ~ 1.6 | 1.1 ~ 1.6 | |
| Hydroxypropoxy | abun ciki (%) | 7.0-12.0 | 4 ~ 7.5 | 23.0 ~ 32.0 | 4.0-12.0 | |
| Digiri na maye gurbin DS | 0.1 ~ 0.2 | 0.2 ~ 0.3 | 0.7 ~ 1.0 | 0.1 ~ 0.3 | ||
| Danshi (Wt%) | ≤5.0 | |||||
| Ash(Wt%) | ≤1.0 | |||||
| PHdara | 5.0-8.5 | |||||
| Na waje | madara farin granule foda ko farin granule foda | |||||
| Lafiya | 80 shugaban | |||||
| danko (mPa.s) | duba ƙayyadaddun danko | |||||
Ƙimar danko
| Ƙayyadaddun bayanai | Kewayon danko (mpa.s) | Ƙayyadaddun bayanai | Kewayon danko (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,samfurin yanayi
Properties: Wannan samfurin fari ne ko fari-fari, mara wari, mara daɗi kumamara guba.
Solubility na ruwa da ƙarfin kauri: Ana iya narkar da wannan samfurin a cikin ruwan sanyi don samar da ingantaccen bayani mai danko.
Rushewa a cikin abubuwan kaushi: Domin ya ƙunshi adadin adadin ƙungiyoyin hydrophobic methoxyl, ana iya narkar da wannan samfurin a cikin wasu kaushi na halitta, kuma ana iya narkar da shi a cikin abubuwan da aka haɗe da ruwa da kwayoyin halitta.
Juriya na Gishiri: Tun da wannan samfurin ba polymer polymer ba ne, yana da ingantacciyar kwanciyar hankali a cikin mafita mai ruwa na gishirin ƙarfe ko na lantarki.
Ayyukan saman: Maganin ruwa na wannan samfurin yana da aikin saman, kuma yana da ayyuka da kaddarorin kamar emulsification, colloid mai kariya da kwanciyar hankali.
Thermal Gelation: Lokacin da maganin ruwa na wannan samfurin ya yi zafi zuwa wani zafin jiki, ya zama maras kyau har sai ya zama yanayin flocculation (poly), ta yadda maganin ya rasa danko. Amma bayan sanyaya, zai sake komawa cikin ainihin yanayin bayani. Yanayin zafin jiki wanda gelation ke faruwa ya dogara da nau'in samfurin, ƙaddamar da bayani da kuma yawan dumama.
PH kwanciyar hankali: Danko na ruwa mai ruwa bayani na wannan samfurin ya tsaya a cikin kewayon PH3.0-11.0.
Tasirin riƙe ruwa: Tun da wannan samfurin na hydrophilic, ana iya ƙara shi zuwa turmi, gypsum, fenti, da dai sauransu don kiyaye babban tasirin ruwa a cikin samfurin.
Riƙe siffar: Idan aka kwatanta da sauran polymers masu narkewar ruwa, maganin ruwa na wannan samfurin yana da kaddarorin viscoelastic na musamman. Ƙarin sa yana da ikon kiyaye siffar samfuran yumbu da aka fitar ba canzawa.
Lubricity: Haɗa wannan samfur na iya rage ƙimar juzu'i da haɓaka lub ɗin samfuran yumbu da aka fitar da samfuran siminti.
Kaddarorin ƙirƙirar fina-finai: Wannan samfurin na iya ƙirƙirar fim mai sassauƙa, mai gaskiya tare da kyawawan kaddarorin inji, kuma yana da kyakkyawan juriya mai mai da mai.
4. Jiki da sinadarai Properties
Girman barbashi: 100 raga izinin wucewa ya fi 98.5%, 80 raga izinin wucewa shine 100%
Carbonization zafin jiki: 280 ~ 300 ℃
Bayyanar yawa: 0.25 ~ 0.70/cm takamaiman nauyi 1.26 ~ 1.31
Zazzabi mai launi: 190 ~ 200 ℃
Tashin hankali: 2% maganin ruwa shine 42 ~ 56dyn/cm
Solubility: Mai narkewa a cikin ruwa da wasu kaushi, maganin ruwa yana da aikin saman. Babban nuna gaskiya. Ayyukan kwanciyar hankali, haɓakawa yana canzawa tare da danko, ƙananan danko, mafi girma da solubility.
Har ila yau, HPMC yana da halaye na ƙarfin ƙarfin ƙarfi, juriya na gishiri, kwanciyar hankali na PH, riƙewar ruwa, kwanciyar hankali mai girma, kyakkyawan kayan samar da fim, da kewayon juriya na enzyme, rarrabawa da haɗin kai.
5, babban manufar
Masana'antu sa HPMC aka yafi amfani a matsayin dispersant a samar da polyvinyl chloride, kuma shi ne babban karin wakili don shirya PVC ta dakatar polymerization. Bugu da ƙari, ana iya amfani da shi azaman thickener, stabilizer, emulsifier, excipient, da kuma ruwa mai kula da ruwa a cikin samar da sauran man fetur, sutura, kayan gini, masu cire fenti, sinadarai na noma, tawada, bugu na yadi da rini, yumbu, takarda. , kayan shafawa, da dai sauransu, fim kafa wakili, da dai sauransu A aikace-aikace a roba resins iya sa samu kayayyakin da halaye na na yau da kullum da sako-sako da barbashi, dace takamaiman nauyi da kyau kwarai aiki yi, don haka m maye gurbin gelatin da polyvinyl barasa a matsayin dispersants.
Hanyoyi shida na rushewa:
(1) . Ɗauki adadin da ake buƙata na ruwan zafi, saka shi a cikin akwati kuma zafi shi zuwa sama da 80 ° C, kuma a hankali ƙara wannan samfurin a cikin sannu a hankali. Selulose yana yawo a saman ruwa da farko, amma a hankali an tarwatsa shi don samar da slurry iri ɗaya. An kwantar da maganin yayin motsawa.
(2) . A madadin haka, zafi 1/3 ko 2/3 na ruwan zafi zuwa sama da 85 ° C, ƙara cellulose don samun ruwan zafi mai zafi, sa'an nan kuma ƙara sauran adadin ruwan sanyi, ci gaba da motsawa, da kwantar da sakamakon da aka samu.
(3) . Rukunin cellulose yana da kyau sosai, kuma yana wanzuwa a matsayin ƙananan ɓangarorin guda ɗaya a cikin foda mai motsawa daidai, kuma yana narkewa da sauri lokacin da ya hadu da ruwa don samar da danko da ake bukata.
(4) . A hankali a hankali ƙara cellulose a dakin da zafin jiki, yana motsawa har sai an samar da bayani mai haske.
Lokacin aikawa: Janairu-11-2023