Cellulose etherssu ne ruwa-mai narkewa polymers samu daga cellulose, mafi yawan polymer a yanayi. Fiye da shekaru 60, waɗannan samfuran iri-iri sun taka muhimmiyar rawa a cikin tarin aikace-aikacen, daga samfuran gini, yumbu da fenti zuwa abinci, kayan kwalliya da magunguna.
Don samfuran gine-gine, ethers cellulose suna aiki azaman masu kauri, masu ɗaure, tsoffin fina-finai da wakilai masu riƙe ruwa. Suna kuma aiki azaman kayan aikin dakatarwa, surfactants, man shafawa, colloid masu kariya da emulsifers. Bugu da ƙari, maganin ruwa na wasu cellulose ethers thermally gel, wani abu na musamman wanda ke taka muhimmiyar rawa a cikin abin mamaki.
aikace-aikace iri-iri. Wannan haɗin haɗin kaddarorin mai mahimmanci ba a samun shi a cikin kowane polymer mai narkewar ruwa.
Gaskiyar cewa yawancin kaddarorin masu amfani suna kasancewa a lokaci guda kuma galibi suna aiki a hade na iya zama fa'idar tattalin arziki mai mahimmanci. A cikin aikace-aikace da yawa, za a buƙaci sinadarai biyu, uku ko fiye don yin aiki iri ɗaya da samfurin ether cellulose guda ɗaya ya yi. Bugu da ƙari, ethers cellulose suna da tasiri sosai, sau da yawa
samar da mafi kyawun aiki a ƙaramin taro fiye da wanda ake buƙata tare da sauran polymers masu narkewar ruwa.
Dow Construction Chemicals yana ba da nau'ikan samfuran cellulosic, gami da methyl cellulose, hydroxyethyl cellulose da carboxymethyl cellulose. Methyl cellulose ethers an fi amfani dashi don aikace-aikace da yawa a cikin gine-gine da masana'antu.
Chemistry na Cellulose Ethers
Kasuwancinmu yana ba da ethers cellulose a cikin nau'ikan asali guda huɗu:
1.Hydroxyethyl methyl cellulose (HEMC/MHEC)
2.Hydroxypropyl methyl cellulose (HPMC, MC)
3.Hydroxyethyl cellulose (HEC)
4. Carboxy methyl cellulose (CMC)
Dukansu nau'ikan suna da kashin bayan polymeric na cellulose, carbohydrate na halitta wanda ya ƙunshi ainihin maimaita tsarin raka'a anhydroglucose. A lokacin kerar da ethers cellulose, cellulose zaruruwa suna zafi da wani caustic bayani, bi da bi, ana bi da tare da methyl chloride, ko dai propylene oxide ko ethylene oxide, samar da hydroxypropyl methyl cellulose ko hydroxyethyl methyl cellulose, bi da bi. Samfurin dauki na fibrous yana tsarkakewa kuma an nisa shi zuwa lafiyayyen foda iri ɗaya.
Hakanan an ƙirƙira samfuran ƙima na musamman don biyan buƙatun masana'antu na musamman.
Ana samun samfuran ether ɗin mu na cellulose a cikin nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan iri uku: foda, foda da aka bi da su da granular. Nau'in samfurin da ake ƙirƙira yana yin tasiri wanda ya ƙirƙira don zaɓar. A mafi yawan busassun busassun aikace-aikacen, ana amfani da foda da ba a kula da su ba, yayin da don aikace-aikacen shirye-shirye, wanda aka ƙara foda cellulosic kai tsaye zuwa ruwa, an fi son foda ko nau'in nau'i na granular.
Gabaɗaya Properties
Gabaɗaya kaddarorin gama gari na ethers ɗin mu na cellulose an jera su anan. Samfura ɗaya ɗaya suna nuna waɗannan kaddarorin zuwa digiri daban-daban kuma suna iya samun su
additional properties desirable for specific applications. For more information, email at sales@kimachemical.com .
| Dukiya | Cikakkun bayanai | Amfani |
| Daure | An yi amfani da shi azaman ɗaurin ɗaure mai girma don kayan fber-ciment da aka fitar | Ƙarfin kore |
| Emulsifcation | Tabbatar da emulsions ta hanyar rage tashin hankali na sama da tsaka-tsaki da kuma ta | Kwanciyar hankali |
| Samuwar fim | Samfuran flms bayyanannu, masu tauri, masu sassauƙan ruwa masu narkewa | • Kyakkyawan shinge ga mai da maiko |
| Lubrication | Yana rage gogayya a cikin siminti extrusion; inganta aikin kayan aikin hannu | • Ingantattun famfo na kankare, injin grouts da feshi |
| Nonionic | Samfuran ba su da cajin ionic | • Ba zai hada da gishiri mai ƙarfe ko wasu nau'in ionic don samuwa ba |
| Solubility (kwayoyin halitta) | Mai narkewa a cikin binary Organic da tsarin kaushi/ruwa don zaɓi iri da maki | Haɗuwa na musamman na kwayoyin halitta da ruwa mai narkewa |
| Solubility (ruwa) | • Za'a iya ƙara samfuran da aka yi da ƙasa/granular kai tsaye zuwa ruwa mai ruwa | • Sauƙin tarwatsawa da rushewa |
| pH kwanciyar hankali | Tsaya akan kewayon pH na 2.0 zuwa 13.0 | • Danko kwanciyar hankali |
| Ayyukan saman | Yi aiki azaman surfactants a cikin maganin ruwa mai ruwa | • Emulsifcation |
| Dakatarwa | Sarrafa daidaita madaidaitan barbashi a cikin tsarin ruwa mai ruwa | • Anti-setling na tara ko pigments |
| Thermal gelation | Yana faruwa ga maganin ruwa na methyl cellulose ethers lokacin da zafi sama da wani zafin jiki | • Kaddarorin saiti masu saurin sarrafawa Gel suna komawa cikin bayani akan sanyaya |
| Kauri | Faɗin ma'aunin kwayoyin halitta don kauri tsarin tushen ruwa | • Rage na rheological profles |
| Riƙewar ruwa | Mai ƙarfi mai kula da ruwa; yana kiyaye ruwa a cikin tsarin da aka tsara | • Mai inganci sosai |
Adhesives na Tushen Siminti
Samfuran mu suna ba da damar yin aikin turmi-saitin bakin ciki ta hanyar riƙe ruwa tare da aikin rheological pseudoplastic. Cimma maƙarƙashiya da sauƙin aiki da daidaito, babban riƙe ruwa, ingantaccen jika zuwa tayal, kyakkyawan lokacin buɗewa da lokacin daidaitawa, da ƙari.
Tile Grouts
Cellulose ethers suna aiki azaman riƙewar ruwa da taimakon dakatarwa. Gano sauƙin aiki mai sauƙi, mannewa mai kyau zuwa gefuna na fale-falen fale-falen buraka, ƙarancin raguwa, juriya mai ƙarfi, ƙarfi mai kyau da haɗin kai, da ƙari.
Ƙarƙashin Ƙarƙashin Ƙarƙashin Kai
Cellulosics suna ba da riƙon ruwa da mai don haɓaka kwararar ruwa da famfo, rage rarrabuwa da ƙari.
Turmi don EIFS/Skim Coat
Isar da ingantacciyar taɓawa tare da ingantaccen aiki, daidaitawa mara amfani, mannewa, riƙe ruwa da ƙari.
Filayen Siminti
Isar da mafi kyawun aiki ta hanyar ingantaccen juriya na sag, iya aiki, buɗe lokaci, kwanciyar hankali mara amfani, mannewa, riƙewar ruwa, yawan amfanin ƙasa da ƙari.
Kayayyakin Gina Mai Gina Gypsum
Isar da sakamakon ƙarshen da ake so na santsi, har ma da ɗorewa tare da daidaiton ingancin samfur da mahimman fasalulluka na aiki.
Siminti da Siminti-Fiber Extruded Materials
Rage gogayya da ba da mai don taimakawa wajen extrusion da sauran hanyoyin ƙirƙira.
Tsarin-Tsarin Latex (Shirye-don-Amfani)
Yawancin makin danko yana ba da kyakkyawan aiki, jinkirin solubility, lokacin buɗewa, lokacin daidaitawa da ƙari.
Lokacin aikawa: Nuwamba-13-2018