Cellulose ether (CelluloseEther) imapangidwa kuchokera ku cellulose kudzera mu etherification reaction ya ether imodzi kapena zingapo komanso dry grinding. Malinga ndi kapangidwe ka mankhwala osiyanasiyana a ether substituents, cellulose ethers imatha kugawidwa m'magulu a anionic, cationic ndi nonionic ethers. Ionic cellulose ethers makamaka imaphatikizapo carboxymethyl cellulose ether (CMC); non-ionic cellulose ethers makamaka imaphatikizapo methyl cellulose ether (MC), hydroxypropyl methyl cellulose ether (HPMC) ndi hydroxyethyl cellulose ether. Chlorine ether (HC) ndi zina zotero. Non-ionic ethers amagawidwa m'magulu a ethers osungunuka m'madzi ndi ethers osungunuka ndi mafuta, ndipo non-ionic water-soluble ethers amagwiritsidwa ntchito kwambiri mu mortar. Pakakhala ma calcium ions, ionic cellulose ether ndi yosakhazikika, kotero siigwiritsidwa ntchito kawirikawiri mu dry-mixed mortar products zomwe zimagwiritsa ntchito simenti, slaked laimu, ndi zina zotero ngati simenti. Ma ether a cellulose osungunuka m'madzi omwe si a ionic amagwiritsidwa ntchito kwambiri mumakampani opanga zida zomangira chifukwa cha kukhazikika kwawo pakuyimitsidwa komanso kusunga madzi.
1. Katundu wa mankhwala a efa wa cellulose
Etha iliyonse ya cellulose ili ndi kapangidwe koyambira ka cellulose - kapangidwe ka anhydroglucose. Pakupanga etha ya cellulose, ulusi wa cellulose umatenthedwa kaye mu yankho la alkaline, kenako umachiritsidwa ndi mankhwala ophera. Chogulitsa cha fibrous reaction chimayeretsedwa ndikuphwanyidwa kuti chipange ufa wofanana wokhala ndi kupyapyala kwina.
Pakupanga MC, methyl chloride yokha ndi yomwe imagwiritsidwa ntchito ngati etherification agent; kuwonjezera pa methyl chloride, propylene oxide imagwiritsidwanso ntchito kupeza magulu olowa m'malo mwa hydroxypropyl popanga HPMC. Ma cellulose ether osiyanasiyana ali ndi ma methyl ndi hydroxypropyl substitution ratios osiyanasiyana, zomwe zimakhudza organic compatibility ndi kutentha kwa kutentha kwa ma cellulose ether solutions.
2. Zochitika za efa ya cellulose
Cellulose ether ndi polima yopanda ionic semi-synthetic, yomwe imasungunuka m'madzi komanso imasungunuka ndi zosungunulira. Ili ndi zotsatira zosiyanasiyana m'mafakitale osiyanasiyana. Mwachitsanzo, mu zipangizo zomangira mankhwala, ili ndi zotsatira zotsatirazi:
①Chosungira madzi ②Chokhuthala ③Katundu wolinganiza ④Katundu wopanga filimu ⑤Chomangirira
Mu makampani opanga polyvinyl chloride, ndi emulsifier ndi dispersant; mu makampani opanga mankhwala, ndi binder komanso zinthu zotulutsa pang'onopang'ono komanso zolamulidwa, ndi zina zotero. Popeza cellulose ili ndi zotsatira zosiyanasiyana, ntchito yake ndi yofala kwambiri. Zotsatirazi zikuyang'ana kwambiri pa kugwiritsa ntchito ndi ntchito ya cellulose ether mu zipangizo zosiyanasiyana zomangira.
(1) Mu utoto wa latex:
Mu makampani opanga utoto wa latex, posankha hydroxyethyl cellulose, kufotokozera kwa viscosity yofanana ndi RT30000-50000cps, komwe kumagwirizana ndi specification ya HBR250, ndipo mlingo wofunikira nthawi zambiri umakhala pafupifupi 1.5‰-2‰. Ntchito yayikulu ya hydroxyethyl mu utoto wa latex ndikukhuthala, kuletsa gelation ya utoto, kuthandizira kufalikira kwa utoto, kukhazikika kwa latex, ndikuwonjezera viscosity ya zigawo, zomwe zimathandiza kuti kapangidwe kake kakhale koyenera: Hydroxyethyl cellulose ndi yosavuta kugwiritsa ntchito. Itha kusungunuka m'madzi ozizira ndi madzi otentha, ndipo siyikhudzidwa ndi pH. Itha kugwiritsidwa ntchito ndi mtendere wamumtima pamene PI ili pakati pa 2 ndi 12. Njira zogwiritsira ntchito ndi izi: I. Kuonjezera mwachindunji popanga: Pa njira iyi, hydroxyethyl cellulose delayed type iyenera kusankhidwa, ndipo hydroxyethyl cellulose yokhala ndi nthawi yosungunuka ya mphindi zoposa 30 imagwiritsidwa ntchito. Masitepe ake ndi awa: ① Ikani mu chidebe chokhala ndi chotenthetsera champhamvu kwambiri. Madzi oyera okwanira ②Yambani kusakaniza mosalekeza pa liwiro lotsika, ndipo nthawi yomweyo onjezerani pang'onopang'ono hydroxyethyl mu yankho mofanana ③Pitirizani kusakaniza mpaka zinthu zonse za granular zitanyowa ④Onjezani zowonjezera zina ndi zowonjezera za alkaline, ndi zina zotero. ⑤Sakanizani mpaka hydroxyethyl yonse isungunuke kwathunthu, kenako onjezerani zigawo zina mu fomula, ndikupukuta mpaka chinthu chomalizidwa. Ⅱ. Yokhala ndi mowa wochuluka kuti mugwiritse ntchito pambuyo pake: Njira iyi ingasankhe cellulose yachangu, yomwe imakhala ndi mphamvu yotsutsana ndi chimfine. Ubwino wa njira iyi ndikuti imakhala yosinthasintha kwambiri ndipo imatha kuwonjezeredwa mwachindunji ku utoto wa latex. Njira yokonzekera ndi yofanana ndi masitepe ①-④. Ⅲ. Konzani phala kuti mugwiritse ntchito pambuyo pake: Popeza zosungunulira zachilengedwe ndi zosungunulira zopanda mphamvu (zosasungunuka) za hydroxyethyl, zosungunulira izi zitha kugwiritsidwa ntchito pokonzekera phala. Zosungunuka zachilengedwe zomwe zimagwiritsidwa ntchito kwambiri ndi zamadzimadzi zachilengedwe zomwe zimapezeka mu utoto wa latex, monga ethylene glycol, propylene glycol, ndi zinthu zopangira filimu (monga diethylene glycol butyl acetate). Porridge ya hydroxyethyl cellulose ikhoza kuwonjezeredwa mwachindunji ku utoto. Pitirizani kusakaniza mpaka itasungunuka kwathunthu.
(2) Mu putty yokanda pakhoma:
Pakadali pano, m'mizinda yambiri m'dziko langa, putty yosalowa madzi komanso yosalowa madzi m'malo mwa chilengedwe yakhala ikukondedwa ndi anthu. Imapangidwa ndi acetal reaction ya vinyl alcohol ndi formaldehyde. Chifukwa chake, zinthuzi zimachotsedwa pang'onopang'ono ndi anthu, ndipo zinthu za cellulose ether zimagwiritsidwa ntchito m'malo mwa zinthuzi. Izi zikutanthauza kuti, popanga zipangizo zomangira zosalowa madzi, cellulose ndiye chinthu chokhacho chomwe chimagwiritsidwa ntchito. Mu putty yosalowa madzi, imagawidwa m'mitundu iwiri: putty youma ndi putty phala. Pakati pa mitundu iwiriyi ya putty, methyl cellulose yosinthidwa ndi hydroxypropyl methyl ziyenera kusankhidwa. Kufotokozera kwa viscosity nthawi zambiri kumakhala pakati pa 30000-60000cps. Ntchito zazikulu za cellulose mu putty ndi kusunga madzi, kugwirizana ndi mafuta. Popeza ma formula a putty a opanga osiyanasiyana ndi osiyana, ena ndi imvi calcium, calcium yopepuka, simenti yoyera, ndi zina zotero, ndipo ena ndi gypsum powder, imvi calcium, calcium yopepuka, ndi zina zotero, kotero ma specifications, viscosity ndi kulowa kwa cellulose m'ma formula awiriwa ndi osiyana. Kuchuluka komwe kwawonjezeredwa ndi pafupifupi 2‰-3‰. Pomanga putty yokanda khoma, popeza pamwamba pa khoma pali madzi enaake (kuchuluka kwa madzi olowa pakhoma la njerwa ndi 13%, ndipo kuchuluka kwa madzi olowa pa konkire ndi 3-5%), kuphatikiza ndi kutuluka kwa madzi kuchokera kunja, ngati putty itataya madzi mwachangu kwambiri, izi zipangitsa kuti pakhale ming'alu kapena kuchotsa ufa, zomwe zidzafooketsa mphamvu ya putty. Chifukwa chake, kuwonjezera cellulose ether kudzathetsa vutoli. Koma mtundu wa filler, makamaka mtundu wa phulusa la calcium, nawonso ndi wofunikira kwambiri. Chifukwa cha kuchuluka kwa ma cellulose, kuyandama kwa putty kumawonjezeka, ndipo kutsika kwa madzi panthawi yomanga kumapewedwanso, ndipo kumakhala kosavuta komanso kopulumutsa ntchito mukamaliza kukanda. Ndikosavuta kuwonjezera cellulose ether mu powder putty. Kupanga ndi kugwiritsa ntchito kwake ndikosavuta. Filler ndi zowonjezera zimatha kusakanikirana mofanana mu ufa wouma.
(3) Simenti yopangidwa ndi konkire:
Mu matope a konkriti, kuti apeze mphamvu yokwanira, simenti iyenera kukhala ndi madzi okwanira. Makamaka nthawi yachilimwe yomanga, matope a konkriti amataya madzi mwachangu kwambiri, ndipo miyeso ya madzi okwanira imagwiritsidwa ntchito kusunga ndi kuwaza madzi. Kutaya zinthu ndi ntchito yosasangalatsa, chofunikira ndichakuti madzi azikhala pamwamba pa nthaka yokha, ndipo madzi amkati sakukwanira, kotero yankho la vutoli ndikuwonjezera zinthu zisanu ndi zitatu zosungira madzi ku konkriti ya konkriti, nthawi zambiri sankhani hydroxypropyl methyl kapena methyl Cellulose, kuchuluka kwa kukhuthala kuli pakati pa 20000-60000cps, ndipo kuchuluka kowonjezera ndi 2%-3%. Kuchuluka kwa madzi osungira madzi kumatha kuwonjezeredwa mpaka kupitirira 85%. Njira yogwiritsira ntchito mu konkriti ya konkriti ndikusakaniza ufa wouma mofanana ndikutsanulira m'madzi.
(4) Mu plaster gypsum, gypsum yolumikizidwa, gypsum yophimba:
Ndi chitukuko chachangu cha makampani omanga, kufunikira kwa anthu kwa zipangizo zatsopano zomangira kukukulirakuliranso tsiku ndi tsiku. Chifukwa cha kuchuluka kwa chidziwitso cha anthu chokhudza kuteteza chilengedwe komanso kupititsa patsogolo magwiridwe antchito omanga, zinthu zopangidwa ndi gypsum zokhazikika zapangidwa mofulumira. Pakadali pano, zinthu zodziwika bwino za gypsum ndi plastering gypsum, bonded gypsum, inlaid gypsum, ndi tile adhesive. Plastering gypsum ndi zinthu zapamwamba kwambiri zomangira makoma ndi denga. Pakhoma lopakidwa ndi losalala komanso losalala. Guluu watsopano wa board light board ndi chinthu chomata chopangidwa ndi gypsum ngati maziko ndi zowonjezera zosiyanasiyana. Ndi yoyenera kumangirira pakati pa zipangizo zosiyanasiyana zomangira makoma. Sichimayambitsa poizoni, Sichimanunkha, chili ndi mphamvu yoyambirira komanso chimakhazikika mwachangu, chimakhala cholimba komanso chili ndi makhalidwe ena, ndi chinthu chothandizira pa matabwa omangira ndi zomangamanga; gypsum caulking agent ndi chodzaza mipata pakati pa matabwa a gypsum ndi chodzaza chokonzera makoma ndi ming'alu. Zinthu zopangidwa ndi gypsum izi zili ndi ntchito zosiyanasiyana. Kuphatikiza pa ntchito ya gypsum ndi zodzaza zina, nkhani yayikulu ndi yakuti zowonjezera za cellulose ether zomwe zawonjezeredwa zimagwira ntchito yotsogola. Popeza gypsum imagawidwa mu gypsum yopanda madzi ndi gypsum ya hemihydrate, gypsum yosiyana imakhala ndi zotsatira zosiyana pa magwiridwe antchito a chinthucho, kotero kukhuthala, kusunga madzi ndi kuchedwa kumatsimikizira mtundu wa zipangizo zomangira gypsum. Vuto lofala la zipangizozi ndi kusweka ndi kusweka, ndipo mphamvu yoyamba siingapezeke. Kuti athetse vutoli, ndi kusankha mtundu wa cellulose ndi njira yogwiritsira ntchito compound ya retarder. Pankhaniyi, methyl kapena hydroxypropyl methyl 30000 nthawi zambiri imasankhidwa. -60000cps, kuchuluka kowonjezera ndi 1.5%–2%. Pakati pawo, cellulose imayang'ana kwambiri pakusunga madzi ndi kuletsa mafuta. Komabe, sizingatheke kudalira cellulose ether ngati retarder, ndipo ndikofunikira kuwonjezera citric acid retarder kuti musakanize ndikugwiritsa ntchito popanda kukhudza mphamvu yoyamba. Kusunga madzi nthawi zambiri kumatanthauza kuchuluka kwa madzi omwe adzatayika mwachilengedwe popanda kuyamwa madzi akunja. Ngati khoma ndi louma kwambiri, kuyamwa madzi ndi kutuluka kwa madzi ndi nthunzi yachilengedwe pamwamba pa nthaka kudzapangitsa kuti zinthuzo zitaye madzi mwachangu kwambiri, ndipo kusweka ndi kusweka kudzachitikanso. Njira yogwiritsira ntchito iyi imasakanizidwa ndi ufa wouma. Ngati mukukonzekera yankho, chonde onani njira yokonzekera yankho.
(5) Chotenthetsera cha kutentha
Chophimba choteteza makoma ndi mtundu watsopano wa zinthu zotetezera makoma mkati mwa dera lakumpoto. Ndi zinthu zotetezera makoma zopangidwa ndi zinthu zotetezera makoma, chophimba makoma ndi chomangira. Mu zinthuzi, cellulose imagwira ntchito yofunika kwambiri pakulumikizana ndikuwonjezera mphamvu. Nthawi zambiri sankhani methyl cellulose yokhala ndi kukhuthala kwakukulu (pafupifupi 10000eps), mlingo nthawi zambiri umakhala pakati pa 2‰-3‰), ndipo njira yogwiritsira ntchito ndi kusakaniza ufa wouma.
(6) wothandizira mawonekedwe
Sankhani HPNC 20000cps ya cholumikizira cholumikizira, sankhani 60000cps kapena kuposerapo pa cholumikizira cha matailosi, ndipo yang'anani kwambiri pa chokhuthala chomwe chili mu cholumikizira cholumikizira, chomwe chingathandize kulimbitsa mphamvu yokoka komanso mphamvu yotsutsana ndi mivi. Chimagwiritsidwa ntchito ngati chosungira madzi mu mgwirizano wa matailosi kuti matailosi asaume msanga ndikugwa.
3. Mkhalidwe wa unyolo wa mafakitale
(1) Makampani otsogola
Zipangizo zazikulu zofunika popanga cellulose ether ndi thonje loyengedwa bwino (kapena zamkati zamatabwa) ndi zinthu zina zodziwika bwino monga propylene oxide, methyl chloride, madzi a caustic soda, caustic soda, ethylene oxide, toluene ndi zinthu zina zothandizira. Makampani akuluakulu amakampani awa akuphatikizapo thonje loyengedwa bwino, makampani opanga zamkati zamatabwa ndi makampani ena opanga mankhwala. Kusinthasintha kwa mitengo ya zipangizo zazikulu zomwe tatchulazi kudzakhudza kwambiri mtengo wopangira ndi mtengo wogulitsa wa cellulose ether.
Mtengo wa thonje loyeretsedwa ndi wokwera kwambiri. Mwachitsanzo, potengera ether ya cellulose ya kalasi ya zinthu zomangira, panthawi yopereka malipoti, mtengo wa thonje loyeretsedwa unali 31.74%, 28.50%, 26.59% ndi 26.90% ya mtengo wogulitsa wa ether ya cellulose ya kalasi ya zinthu zomangira motsatana. Kusinthasintha kwa mitengo ya thonje loyeretsedwa kudzakhudza mtengo wopanga ether ya cellulose. Zipangizo zazikulu zopangira thonje loyeretsedwa ndi thonje. Ma linter a thonje ndi amodzi mwa zinthu zomwe zimagwiritsidwa ntchito popanga thonje, zomwe zimagwiritsidwa ntchito kwambiri popanga thonje la pulp, thonje loyeretsedwa, nitrocellulose ndi zinthu zina. Kugwiritsa ntchito ndi kugwiritsa ntchito ma linter a thonje ndi thonje n'kosiyana kwambiri, ndipo mtengo wake ndi wotsika kuposa wa thonje, koma uli ndi mgwirizano wina ndi kusinthasintha kwa mitengo ya thonje. Kusinthasintha kwa mitengo ya ma linter a thonje kumakhudza mtengo wa thonje loyeretsedwa.
Kusinthasintha kwakukulu kwa mitengo ya thonje loyeretsedwa kudzakhudza kwambiri kuwongolera ndalama zopangira, mitengo ya zinthu ndi phindu la mabizinesi m'makampani awa. Pamene mtengo wa thonje loyeretsedwa uli wokwera ndipo mtengo wa thonje loyeretsedwa uli wotsika mtengo, kuti achepetse ndalama, thonje loyeretsedwa lingagwiritsidwe ntchito ngati cholowa m'malo ndi chowonjezera cha thonje loyeretsedwa, makamaka popanga ma ether a cellulose okhala ndi kukhuthala kochepa monga ma ether a mankhwala ndi chakudya. Malinga ndi deta yochokera patsamba la National Bureau of Statistics, mu 2013, malo obzala thonje m'dziko langa anali mahekitala 4.35 miliyoni, ndipo thonje lonse linali matani 6.31 miliyoni. Malinga ndi ziwerengero kuchokera ku China Cellulose Industry Association, mu 2014, kutulutsa konse kwa thonje loyeretsedwa lopangidwa ndi opanga thonje loyeretsedwa m'nyumba kunali matani 332,000, ndipo zinthu zopangira zilipo zambiri.
Zipangizo zazikulu zopangira zida za graphite ndi chitsulo ndi graphite carbon. Mtengo wa chitsulo ndi graphite carbon umakhala ndi gawo lalikulu la mtengo wopangira zida za graphite. Kusinthasintha kwa mitengo ya zipangizozi kudzakhudza mtengo wopangira ndi mtengo wogulitsa zida za graphite.
(2) Makampani otsika a ether ya cellulose
Monga "monosodium glutamate ya mafakitale", cellulose ether ili ndi gawo lochepa la cellulose ether ndipo imagwira ntchito zosiyanasiyana. Makampani omwe ali pansi pa mtsinjewu ali m'mbali zonse za moyo m'chuma cha dziko.
Kawirikawiri, makampani omanga nyumba ndi malo ogulitsa nyumba amakhudza kwambiri kukula kwa kufunika kwa ether ya cellulose. Makampani omanga nyumba ndi malo ogulitsa nyumba akamakula mofulumira, kufunikira kwa ether ya cellulose ya zinthu zomangira kukukulirakulira mofulumira. Pamene kukula kwa makampani omanga nyumba ndi malo ogulitsa nyumba kukucheperachepera, kukula kwa kufunikira kwa ether ya cellulose ya zinthu zomangira pamsika wa nyumba kudzachepa, zomwe zidzakulitsa mpikisano mumakampani awa ndikufulumizitsa njira yopulumukira kwa mabizinesi olimba kwambiri mumakampani awa.
Kuyambira mu 2012, chifukwa cha kuchepa kwa makampani omanga nyumba ndi malo ogulitsa nyumba, kufunikira kwa ether ya cellulose yopangidwa ndi zinthu zomangira pamsika wa nyumba sikunasinthe kwambiri. Zifukwa zazikulu ndi izi: 1. Kukula konse kwa makampani omanga nyumba ndi malo ogulitsa nyumba ndi kwakukulu, ndipo kufunikira konse kwa msika ndi kwakukulu; msika waukulu wa ogula wa ether ya cellulose yopangidwa ndi zinthu zomangira ukukulirakulira pang'onopang'ono kuchokera kumadera otukuka zachuma ndi mizinda yoyamba ndi yachiwiri mpaka madera apakati ndi akumadzulo ndi mizinda yachitatu, kuthekera kwa kukula kwa kufunikira kwa nyumba ndi kukula kwa malo; 2. Chiŵerengero cha ether ya cellulose yowonjezeredwa pamtengo wa zipangizo zomangira ndi chotsika, ndipo kuchuluka komwe kasitomala m'modzi amagwiritsa ntchito ndi kochepa, ndipo makasitomala amabalalika, zomwe zimakhala zovuta kufunikira, ndipo kufunikira konse pamsika wapansi kumakhala kokhazikika; 3. Kusintha kwa mtengo wamsika ndi chinthu chofunikira chomwe chimakhudza kusintha kwa kapangidwe ka kufunikira kwa ether ya cellulose yopangidwa ndi zinthu zomangira. Kuyambira mu 2012, mtengo wogulitsa wa ether wa cellulose watsika kwambiri, zomwe zapangitsa kuti mitengo ya zinthu zapakati mpaka zapamwamba itsike, zomwe zakopa makasitomala ambiri kuti agule ndikusankha, zomwe zawonjezera kufunikira kwa zinthu zapakati mpaka zapamwamba, komanso kufinya kufunikira kwa msika ndi malo amitengo ya mitundu wamba.
Kukula kwa makampani opanga mankhwala ndi kukula kwa makampani opanga mankhwala kudzakhudza kufunikira kwa ether ya cellulose ya mankhwala. Kukweza miyoyo ya anthu komanso makampani opanga chakudya omwe akutukuka ndi omwe akuthandizira kufunikira kwa ether ya cellulose ya mankhwala pamsika.
4. Kukula kwa Cellulose Ether
Chifukwa cha kusiyana kwa kapangidwe kake pakufunika kwa ether ya cellulose pamsika, makampani omwe ali ndi mphamvu ndi zofooka zosiyanasiyana amatha kukhala limodzi. Poganizira kusiyana kwa kapangidwe kake ka kufunikira kwa msika, opanga ether ya cellulose m'nyumba agwiritsa ntchito njira zosiyanasiyana zopikisana kutengera mphamvu zawo, ndipo nthawi yomweyo, ayenera kumvetsetsa bwino momwe msika ukupitira patsogolo komanso komwe ukupita.
(1) Kuonetsetsa kuti khalidwe la zinthu likuyenda bwino kudzakhalabe chinthu chofunikira kwambiri pa mpikisano wa makampani opanga ether a cellulose
Cellulose ether ndi gawo laling'ono la ndalama zopangira mabizinesi ambiri omwe ali pansi pa makampaniwa, koma zimakhudza kwambiri mtundu wa malonda. Magulu a makasitomala apakati mpaka apamwamba ayenera kuyesa njira yopangira mafuta asanagwiritse ntchito mtundu wina wa cellulose ether. Pambuyo popanga njira yokhazikika, nthawi zambiri sikophweka kusintha mitundu ina ya zinthu, ndipo nthawi yomweyo, zofunikira zapamwamba zimayikidwa pa kukhazikika kwabwino kwa cellulose ether. Izi zimawonekera kwambiri m'magawo apamwamba monga opanga zida zomangira zazikulu kunyumba ndi kunja, zinthu zothandizira mankhwala, zowonjezera chakudya, ndi PVC. Pofuna kupititsa patsogolo mpikisano wa zinthu, opanga ayenera kuwonetsetsa kuti mtundu ndi kukhazikika kwa magulu osiyanasiyana a cellulose ether omwe amapereka kumatha kusungidwa kwa nthawi yayitali, kuti apange mbiri yabwino pamsika.
(2) Kupititsa patsogolo luso la kugwiritsa ntchito zinthu ndiko komwe makampani opanga ma cellulose ether akutukuka.
Ndi ukadaulo wopanga wa cellulose ether womwe ukukulirakulira, ukadaulo wapamwamba wogwiritsa ntchito umathandiza kuti makampani azipikisana bwino komanso kuti pakhale ubale wabwino ndi makasitomala. Makampani odziwika bwino a cellulose ether m'maiko otukuka amagwiritsa ntchito njira yopikisana ya "kuyang'anizana ndi makasitomala akuluakulu apamwamba + kupanga magwiritsidwe ntchito ndi magwiritsidwe ntchito otsikira" kuti apange magwiritsidwe ntchito ndi magwiritsidwe ntchito a cellulose ether, ndikukonza zinthu zingapo malinga ndi magawo osiyanasiyana ogwiritsira ntchito kuti athandize makasitomala kugwiritsa ntchito, komanso kukulitsa kufunikira kwa msika wotsikira. Mpikisano wa makampani a cellulose ether m'maiko otukuka wasintha kuchoka pa kulowa kwa malonda kupita ku mpikisano pankhani yaukadaulo wogwiritsa ntchito.
Nthawi yotumizira: Feb-27-2023