Tsarin masana'antar HPMC
Tsarin masana'antar donHydroxypyl methylcellose (hpmc)ya ƙunshi jerin sunadarai, injiniyoyi, da matakai na therler. Tsarin yana farawa da hauhawa mai hauhawa daga fibers na halitta kuma yana karewa tare da samar da wata mai kyau, bushe foda wanda ya dace da aikace-aikace daban-daban. Daskararren juzu'i ya rufe kowane mataki a cikin tsarin samar da HPMC, gami da rushewar mahimman matakan, albarkatun ƙasa, halayen ingancin inganci.
Gabatarwa zuwa masana'antar HPMC
Methypyl methylcelose(HPMC) ether ne na sel mai amfani da shi a aikace-aikace iri-iri, ciki har da abinci (a matsayin mai siyarwa), abinci (kamar shaye-shaye), kayan kulawa), samfuran kulawa na mutum), da ƙari. Kayan aikinta na musamman sun haɗa da riƙewar ruwa, ikon samar da fim, babbar danko, da sauƙi gyara.
HPMC an ƙirƙira ta hanyar pellulose na griginlulose, an fitar da polymer na halitta daga zargin shuka. Ta hanyar aiwatar da extaron, takamaiman rukunin aiki-methyldayar hydroxypoylKungiyoyi-an gabatar da su ne ga kwayoyin sukan kwayoyin, don haka ya canza kayan aikin ta da kuma sunadarai. Wadannan gyare-gyare suna ba da halayen da ake so kamar su sha ruwa, ingantattun kwarara, da kaddarorin glelling zuwa samfurin.
Jigogi da ke gaba suna samar da cikakken rushewar matakan da ke tattare da su a cikin samar da HPMC, suna rufe albarkatun ƙasa, matakai na sunadarai, da matattarar masana'antu.
1. Shiri na abu
Manyan albarkatun ƙasa don samar da hpmc shinepelulose, wanda aka samo daga fibers na shuka, da farko katako na katako ko linzunan auduga. Dole ne sel mai sel dole ne ya sami jerin abubuwan jiyya don cire ƙazanta kuma shirya shi don tsarin eThatation. Wannan yana tabbatar cewa cocin yana da tsabta kuma ya ƙi.
1.1. Soursi da tsarkakewa na selulose
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Selellingose | Samu sel daga fibers na halitta, kamar su katako na katako ko linuniyar auduga. | Ya kamata sel ya kamata ya sami tsarkakakkiyar tsarkakakke don tabbatar da ingancin HPMC. |
| Tsarkakewa | Cire kayan aikin da ba sel ba shi ne, kamar Ligntin da Hemmiclulose, ta amfani da alkali magani. | Yawanci, sodium hydroxide (Naoh) ko potassium hydroxide (Koh) ana amfani dashi don narke hemicellulose da Ligntin. |
| Wanka | Kurkura tare da ruwa don cire sinadarai na saura. | Rins yana cire wuce haddi alkali da sauran m don tabbatar da celulamose ne tsarkakakke. |
Ana sarrafa fibers da bushe don cimma takamaiman abun ciki na danshi, wanda yake da mahimmanci ga matakai na gaba.
1.2. Pre-Jiyya Tare da Alkali
Ana kula da Fibers na Fibers tare da sodium hydroxide (Naoh) bayani don sanya zaruruwa ƙarin mai ba da gudummawa da buɗe tsarinsu. Wannan ake kiraJimmar alkali or kunnawa, kuma mataki ne mai mahimmanci a cikin tsari.
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Aokin Alkali | Selelulose an soaked a cikin alkaline bayani (nooh) don sa'o'i da yawa a zazzabi na yanayi. | Maganin alkaline ya yi kwarara cellulose, yana sa ya fi maido da tsarin eThoration. |
| Ƙaramin abu | Bayan jiyya, an bar cakuda don hutawa don dayawa ko kwanaki. | Wannan yana bawa zargin sel mãtawa don tabbatar da daidaituwa don mataki na gaba. |
2.
EThertion tsari shine tsari inda ake mayar da shi da celulose tare daMethyl chloride (ch₃cl)dapropylelene oxide (c₃hexo)Don gabatar da methyl (ch₃) da hydroxypropyl (c₃h₆oh) ƙungiyoyi, canza sel a cikiHydroxypyl methylcellose (hpmc).
Wannan shine mafi mahimmancin matakin masana'antu HPMC, kamar yadda yake ƙayyade ingancin da kaddarorin samfurin ƙarshe.
2.1. Methylation (Methyl Gra Bugu da kari)
An fara mayar da garkuwa da selMethyl chlorideA gaban tushe (yawanci sodium hydroxide, Nooh), wanda ke gabatar da ƙungiyoyin metyl (-ch₃) cikin tsarin sel.
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Mohayal | Ana mayar da ita cellulose tare da methyl chloride (chickcl) a gaban Nooh. | Hadin da aka gabatar yana gabatar da kungiyoyin methyl (-ch₃) a cikin sarƙoƙi na sel. Wannan siffofin(mc)a matsayin matsakaici. |
| Sarrafa martaba | A dauki wuri a hankali a cikin sharuddan zazzabi (30-50 ° C) da lokaci. | Maɗa yawa zafin jiki na iya haifar da halayen da ba a so ba, yayin da ƙananan ƙarancin zafin jiki na iya rage matsayin canzawa. |
Adadin methyation yana tantancedigiri na musanya (ds), wanda ya shafi warwarewar da danko da danko na samfurin ƙarshe.
2.2. Hydroxypyl (HydroxypORYL Bugu da kari)
Ana mayar da sel wanda aka sake shi dapropylelene oxide (c₃hexo)don gabatar daKungiyoyin Hydroxypyl (-c₃h₆oh), wanda ya ba da HPMC kayan halayyar sa, kamar su solubility ruwa da danko.
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Ficalation | Ana bi da sel methylulose tare da propylele opide a karkashin ka'idodin sarrafawa. | A matsayin martaniHydroxypyl methylcellose (hpmc). |
| Catalysis | Ana amfani da sodium hydroxide ko sodium carbonate azaman mai kara kuzari. | Tushen yana taimakawa a cikin kunnawa Oprylene Oxide don amsawa. |
Digiri na musanyawar Hydroxypyl shima yana tasiri kan kaddarorin ƙarshe na HPMC, kamar ganin sa, ƙila, da ikon samar da fina-finai.
2.3. Erithaaddara mai amfani
Ana amfani da halayen eThatayawa a cikinreactor jirgin ruwaƙarƙashinsarrafa zazzabi da matsin lamba. Yanayin hankula sune kamar haka:
| Misali | Yanayi |
|---|---|
| Ƙarfin zafi | 30 ° C zuwa 60 ° C |
| Matsa lambu | ATMOSPHERIC ko Damar da matsin lamba |
| Lokacin dauki | 3 zuwa 6 hours, gwargwadon tsarin da ake so |
Dole ne a kula da shi a hankali don tabbatar da haɗuwa da uniforation da guji halayen da bai cika ba.
3. Cikewa da Wanke
Bayan tsari na eThatation, cakuda dauki ya ƙunshi wuce haddi Alkali da magungunan da ba a san su ba. Wadannan suna buƙatar yin tauri kuma a cire su don tabbatar da cewa samfurin HPMC na ƙarshe yana da lafiya, tsarkakakke, kuma ya sadu da bayanai.
3.1. Rashin tsaro
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Rashin tsaro | Theara rauni mai rauni, kamar hydrochloric acid (hcl), don dakatar da wuce haddi nah. | Aci na acid yana tsarawa duk sauran abubuwan da aka gina alkaline. |
| pH | Tabbatar cewa ph na cakuda yana yin tazara (PH 7) kafin a ci gaba zuwa mataki na gaba. | Rashin daidaitarwa yana taimakawa wajen magance matsaloli tare da kwanciyar hankali na ƙarshe. |
3.2. Wanka
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Wanka | Wanke cakuda cakuda sosai. | Ana buƙatar wanke wanki da yawa don cire dukkanin sunadarai na saura da samfuran samfurori. |
| Tsarkakewa | Ana tayar da samfurin don cire duk wani barbashi mai banƙyama ko ƙazanta. | Wannan matakin yana tabbatar da cewa samfurin ƙarshe yana da tsabta kuma kyauta daga ƙazantu. |
4. Bushewa da face
Da zararHpmCSlurry yana tauracewa da tace, mataki na gaba yana bushewa don sauya samfurin a cikin kyakkyawan foda. Ana sarrafa tsarin bushewa a hankali don kula da kaddarorin sinadarai na HPMC.
4.1. Bushewa
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Bushewa | Da tace hpmc slurry yana bushe, sau da yawa amfanifesa bushewa, Drum bushewa, kodaskare bushewadabaru. | SPRay bushewa shine mafi yawan hanyar da aka fi dacewa, inda slurry ya yi atomized kuma bushe a cikin rafi mai zafi. |
| Sarrafa zazzabi | Zazzabi a hankali yana sarrafawa a hankali don guje wa lalata ether. | Yawanci, yanayin zafi tsakanin 50 ° C zuwa 150 ° C ana amfani dashi, gwargwadon hanyar bushewa. |
4.2. Nika da sieving
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Tuadn ruwa | HPMC da aka bushe tana ƙasa zuwa foda mai kyau. | Wannan yana tabbatar da rarraba sigari. |
| Kurita | Ground Hpmc foda ya narke don cimma girman barbashi. | Yana tabbatar da cewa foda yana da ruwa da ake so da rarraba girman girman ƙananan. |
5. Gudanarwa mai inganci da gwaji
Kafin a shirya samfurin HPMC ta ƙarshe kuma ana jigilar shi, yana fuskantar tsauraran gwajin ingantaccen inganci don tabbatar da cewa ya cika ka'idojin masana'antu.
5.1. Gwajin Magana
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Matsayi na danko | Auna danko na daidaitaccen bayani na HPMC a cikin ruwa. | Dangin HPMC yana da mahimmanci ga aikace-aikacen kamar lamba, mayafin, da kayan gini. |
5.2. Danshi abun ciki
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Gwajin danshi | Gwaji don ragowar danshi. | Yawan danshi na iya haifar da ƙarancin aiki a wasu aikace-aikace. |
5.3. Tsarkakewa da gwajin ƙawata
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Tsarin Tsarkarwa | Gwada tsarkakewar HPMC ta amfani da dabaru kamar cututtukan cututtukan fata. | Yana tabbatar cewa HPMC baya dauke da abubuwan da ba a yi musu sunadarai ba. |
6. Wuri
Da zarar HPMC ta wuce dukkan gwaje-gwaje masu inganci, an jera sujaka, glums, koSachetsya danganta da bukatun abokin ciniki.
| Taka | Shiga jerin gwano | Ƙarin bayanai |
|---|---|---|
| Marufi | Sake kunshin samfurin HPMC zuwa cikin kwantena masu dacewa. | Samfurin ya shirya don jigilar kaya ga abokan ciniki. |
| M | Hanyar da ta dace tare da bayanai dalla-dalla, lambar tsari, da sarrafa umarni. | Labels suna ba da bayani mai mahimmanci ga abokan ciniki. |
Ƙarshe
Tsarin masana'antu don hydroxypropyl methylcellulopyl methylllulose (HPMC) ya ƙunshi matakai masu iko a hankali, farawa daga masarautar da tsarkakewa ga kayan sel na ƙarshe na samfurin. Kowane mataki a cikin tsari yana tasiri ingancin da kaddarorin na HPMC, kamar danko, da kuma tsari na samar da kayan aiki.
Fahimtar aiwatar da cikakken masana'antun na tabbatar da cewa masana'antun za su iya inganta kowane mataki don samar da ingantaccen samfurin masana'antu, daga ginin zuwa magunguna daban-daban.
Lokaci: Feb-07-2025