Chitukuko chaukadaulo wopanga HPMC ndi njira ya hydroxypropyl methyl cellulose ku China

Chitukuko chaukadaulo wopanga HPMC ndi njira ya hydroxypropyl methyl cellulose ku China

Hydroxypropyl methyl celluloseMtengo wa HPMCkuti kupanga panopa zoweta amapatsidwa patsogolo ndi madzi gawo njira luso, luso limeneli akuimiridwa ndi wuxi mankhwala makampani kafukufuku ndi kapangidwe bungwe ku China kafukufuku wagawo m'ma 1970, kafukufuku wapeza pa maziko a kukwezeleza, choyambirira ndi mpweya gawo njira etherification anachita, chifukwa zida si azolowere dziko lathu, ndiye anagwira ntchito madzi gawo njira etherification anachita, Mpaka pano mkulu ether chiŵerengero chamadzimadzi ndondomeko akadali odziwika bwino gawo losamba njira yamadzimadzi. opanga ma cellulose ether.

Zoweta hydroxypropyl methyl mapadi HPMC kupanga zambiri ntchito thonje woyengeka ngati zopangira (opanga ena anayamba kuyesa ntchito nkhuni zamkati), ndi zoweta chopukusira akupera kapena mwachindunji ntchito woyengeka thonje alkalization, etherification ntchito bayinare wosanganiza zosungunulira organic, anachita mu ofukula riyakitala. Njira yoyeretsera imagwiritsa ntchito njira yapakatikati yomwe organic zosungunulira zimachotsedwa mu riyakitala ndipo zinthu zopanda pake zimatsukidwa kudzera m'matsuka angapo ndi kutaya madzi m'thupi kudzera muzopukuta ndi ma centrifuges. Anamaliza mankhwala processing ndi yapakatikati granulation, pansi Kutentha chikhalidwe (palinso wopanga popanda granulation), kuyanika ndi kuphwanya njira ochiritsira, ambiri a processing wapadera ndi kungochedwa hydration nthawi ya mankhwala (mwamsanga kupasuka) processing popanda mildew kuteteza ndi kugawa processing, ma CD ntchito njira Buku.

Njira yamadzimadzi gawo ili ndi ubwino wotsatirawa: zomwe zidachitika m'kati mwake zida zamkati ndizochepa, zida zokakamiza mphamvu ndizochepa, chiopsezo chochepa; Pambuyo poika mimba mu lye,celluloseakhoza kukulitsidwa kwathunthu ndi wogawana alkali. Lye imalowetsa bwino komanso kutupa kwa cellulose. The etherification riyakitala ndi yaing'ono, pamodzi ndi kutupa yunifolomu wa mapadi alkali, kotero khalidwe la mankhwala n'zosavuta kulamulira, digiri m'malo ndi mamasukidwe akayendedwe angapezeke mankhwala yunifolomu, mitundu komanso zosavuta m'malo.

Komabe, ndondomekoyi ilinso ndi zovuta zotsatirazi: riyakitala nthawi zambiri siikulu kwambiri, zoperewera zowerengera zimatsogolera ku mphamvu yaing'ono yopangira, pofuna kupititsa patsogolo zotsatira, m'pofunika kuwonjezera chiwerengero cha reactors; Zoyengedwa ndi zoyeretsedwa zopanda pake zimafunikira zida zambiri, ntchito yovuta, kulimba kwa ntchito; Chifukwa palibe mankhwala odana ndi mildew ndi pawiri, zomwe zimapangitsa kuti zinthu zikhale zokhazikika komanso zopangira ndalama zomwe zimakhudzidwa; Kupaka ndi njira yamanja, kulimba kwa ntchito, kukwera mtengo kwa ntchito; The automation digiri ya reaction control ndi yotsika kuposa ya gasi gawo process, kotero kulondola kowongolera kumakhala kochepa. Poyerekeza ndi ndondomeko ya gasi, machitidwe ovuta osungunulira amafunikira.

Ndi kusintha kwapakhomo hydroxypropyl methyl celluloseMtengo wa HPMCukadaulo wopanga, mabizinesi ena kudzera mwaukadaulo wodziyimira pawokha, njira yayikulu yamadzimadzi ya ketulo yapangidwa ndi kudumpha ndi njira, ndipo ili ndi mawonekedwe akeake. Anxin umagwirira ntchito HPMC choyambirira ndondomeko kupanga, osati ndondomeko kupanga ndi wololera, magawo ulamuliro ntchito ndi olondola ndi odalirika, ntchito zonse ndi wololera wa zipangizo ndi makhalidwe ena, ndi digiri mankhwala m'malo ndi yunifolomu, anachita ndi bwinobwino, yankho mandala ndi zabwino, ndipo pa nthawi yomweyo kuonetsetsa bata la khalidwe mankhwala. HPMC mzere kupanga mabizinesi ena wakhala basi kusintha, kukwaniritsa chipangizo cha DCS zochita zokha kulamulira amafuna, zipangizo kuphatikizapo madzi, olimba zopangira angagwiritsidwe ntchito kuyeza molondola ndi kuwonjezera DCS dongosolo, kutentha ndi kuthamanga kulamulira mu ndondomeko anachita zonse anazindikira DCS kulamulira basi ndi kuyang'anira kutali, Pankhani kuthekera, kudalirika, bata ndi chitetezo cha kupanga, ndi mwachionekere kuchepetsa chikhalidwe kupanga mphamvu poyerekezera ndi khalidwe labor munthu, n'zoonekeratu kuti kuchepetsa mphamvu ya ntchito poyerekezera ndi chikhalidwe cha anthu. kulimba, komanso kumapangitsanso malo ogwirira ntchito pamalowo.