Hydroxyethyl cellulose yolimbitsa thupi ndi mankhwala
Maonekedwe amapangidwa kuti chinthu ichi ndi choyera chikasu chikaso kapena cholimba, chosapatuka komanso chopanda pake
Malo osungunuka 288-290 ° C (Deco.)
Kuchulukitsa 0.75 g / ml pa 25 ° C (yoyatsidwa.)
Kususuka kusungunuka m'madzi. Zophatikizidwa mu okonda zodziwika. Amasungunuka m'madzi ozizira ndi madzi otentha, ndipo nthawi zambiri mwangokhala okhazikika m'malo okhazikika. Makutu amasintha pang'ono mu mtundu wa pH yamtengo 2-12, koma ma viscy akuchepera kupitirira izi. Ili ndi ntchito za kukula, kuyimitsa, kumanga, emulsifying, kubalalikira, ndikusunga chinyezi. Njira zothetsera ma victoni osiyanasiyana zimakonzedwa. Imakhala ndi solubility wabwino mchere wama electrolyte.
Monga osagwirizana ndi ionic sutictictictic, hydroxethyl cellulose ili ndi zotsatirazi kuwonjezera, kuyimitsa, kuyandama, kusungunuka, ndikusunga ma coloids:
1. Hec amasungunuka m'madzi otentha kapena madzi ozizira, kutentha kwambiri kapena kuwira popanda mpweya, kotero kuti ili ndi mawonekedwe osiyanasiyana komanso osakhala otenthetsera;
2. Sikuti ndi ionic ndipo imatha kukhala yolumikizana ndi ma pointer ena osungunuka madzi, okonda, ndi mchere. Ndibwino kwambiri colloidal yothetsera mavuto ambiri a electrolyte;
3. Kuchuluka kwa madzi ndikokwera kwambiri ngati kwa methyl cellulose, ndipo ili ndi njira yabwino kwambiri.
4. Poyerekeza ndi methyl cellose ndi hydroxypropyl methy cellose, kuthekera kwa hec ndiye choyipa kwambiri, koma kuthekera kwa coloid ndikolimba.
Zofunikira zaukadaulo ndi miyezo yapamwamba ya hydroxyethyl cellulose
Zinthu: Index molar zoloweza (ms) 2.0-2.5 chinyezi (%) ≤5 ma ≤0.5 ph) ≤20 ma visction (MPA) 2% 20 ℃ ℃ ℃ ℃ ℃ ℃0000 kutsogolera (%) ≤0.001
Kugwiritsa ntchito hydroxyethyl cellulose
【Gwiritsani ntchito 1】
[Gwiritsani ntchito 2] imagwiritsidwa ntchito ngati thickener ndi madzi ochepetsa madzi amadzimadzi okwera m'madzi ndi madzi omaliza, ndipo ali ndi mphamvu zodziwikiratu mu brine zakumwa zakumadzi. Itha kugwiritsidwanso ntchito ngati kutaya kwamadzi kutaya kwa mafuta siramenti. Itha kukhala yolumikizidwa ndi ma ionyvalement zitsulo kuti apange gel.
[Gwiritsani ntchito 3] malonda awa amagwiritsidwa ntchito ngati polymeric discaper ya gel osakira madzi akuyaka, polystyrene ndi polyvinyl chloride mu kuwonongeka kwa migodi. Itha kugwiritsidwanso ntchito ngati emulsion tricker mu utoto wamatoma, u hygrostat m'makampani amagetsi, simenti ya anticoagulant ndi chinyezi chosunga chinyezi m'malo opanga zomanga. Makampani ogulitsa ma ceraming ndi mano. Amagwiritsidwanso ntchito kwambiri posindikiza ndi utoto, zovala, pepala, mankhwala, ukhondo, ndudu, ndudu, mankhwala ophera tizilombo.
[Gwiritsani ntchito 4] wogwiritsidwa ntchito ngati woteteza, woteteza Colloidal kuteteza vinyl chtswirini, vanyl acetate ndi emulsissions, komanso discosirier, komanso kufalikira, komanso kufalikira, ndikubalalika, ndi kufalitsa kusungunuka kwa latx. Kugwiritsa ntchito zokutira, ulusi, kupaka mapepala, zodzoladzola, mankhwala, mankhwala ophera tizilombo, etc. imagwiritsanso ntchito makampani amakina.
Gwiritsani ntchito 5】 hydrothyl cellulose imakhala ndi ntchito zantchito, ndikuti muime, kuyimitsa, kusungitsa mafilimu, kukonza madzi kukonzekera kukonzekera kolimba ndi madzi.
Mapulogalamu a hydroxyethyl cellulose
Kugwiritsidwa ntchito molunjika, zodzoladzola, mano, mafuta onunkhira, oteteza mankhwala a Colloidal, mafuta kuthyola madzi, polyvinyl chloride osabala, etc.
Hydroxyethyl cellulose denguri ya deta (MSDS)
1. Izi zimakhala ndi chiopsezo cha kuphulika kwa fumbi. Mukamagwira ntchito zochuluka kapena zochuluka, samalani kuti mupewe fumbi ndi kuyimitsidwa mlengalenga, ndikupewa kutentha, ma spars, magetsi okhazikika. 2. Pewani Methylluloseulese yolowera kulowa ndi kulumikizana, ndikuvala zosefera mamba ndi chitetezo cha chitetezo pakugwira ntchito. 3. Chogulitsacho ndikuterera kwambiri pomwe chonyowa, ndipo ufa wa methyllulose uyenera kutsukidwa mu nthawi ndi mankhwala othandizira kuyenera kuchitika.
Zosungira ndi mayendedwe a hydroxethyl cellulose
Kulongedza: matumba otsegula kawiri, thumba la pepala lakunja, thumba lamkati la ma pickle, net kulemera 20kg kapena 25kg pa thumba lililonse.
Kusunga ndi mayendedwe: Sungani m'malo owuma komanso owuma m'nyumba, ndipo samalani ndi chinyezi. Mvula ndi kutetezedwa ndi dzuwa paulendo.
Kukonzekera njira ya hydroxethyl cellulose
Njira 1: Poneto ya thonje ya thonje kapena zamkati zoyenerera mu 30% yu, ichotse theka la ola, ndikusindikiza. Kanikizani mpaka chiwerengero cha alkali-Madzi chimafika 1: 2.8, ndikusunthira kuchipangizo chopunthwitsa cha kuphwanya. Fider fiber yosweka mu ketulo yomwe inachitika. Osindikizidwa ndikuthamangitsidwa, odzazidwa ndi nayitrogeni. Pambuyo pokonza mpweya mu ketulo ndi nayitrogeni, kanikizani mu ethylene yokongola ma oxide. Kuchita kuzizira pa 25 ° C kwa 2 h kuti mupeze rode hydrothyl cellulose. Sambani zochulukitsa ndi mowa ndikusintha mtengo wa pH mpaka 4-6 powonjezera acetic acid. Onjezani a Glyloxal kuti mulankhulidwe ndi ukalamba, sambani mwachangu ndi madzi, ndipo pamapeto pake centrifuge, youma, ndikupera kuti mupeze mchere wa hydroxethyl.
Njira 2: Alkalini cellulose ndi polymer yachilengedwe, mphete iliyonse ya nthofi ili ndi magulu atatu a hydroxyl omwe amagwiranso ntchito kuti apange cydrouethyl. Zilowerero za thonje kapena zoyenga bwino mu 30% madzi cautic soda, tengani ndikusindikiza theka la ola. Finyani mpaka chiwerengero cha madzi amcheri amafika 1: 2.8, kenako. Ikani cellosese ya alkali yophika mu ketulo ija, zisindikiza, mudzaze ndi nayitrogeni, ndikubwereza zotumphukira komanso kudzazidwa ndi nayitrogeni kuti alowe m'malo mwa mpweya mu ketulo. Press mu ethylene wokhazikika ma oxide madzi, ikani madzi ozizira mu jekete la kettact, ndikuwongolera zomwe zimachitika pofika 25 ° C kwa maola awiri kuti apeze rouluthyl. Choyipa chambiri chimasambitsidwa ndi mowa, kuyambiranso pH 4-6 powonjezera acetic acid, ndikuwoloka ndi glyloxal yokalamba. Kenako imasambitsidwa ndi madzi, kusokonekera ndi centrifugation, youma ndikupukuta kuti apeze hydroxethyl cellulose. Zovala zopangira (kg / t) zotupa za thonje kapena zamkati zotsika 730-780 madzi a caush
Hydroxyethyl cellulose ndi ufa woyera kapena wachikasu, wosangalatsa komanso wosavuta m'madzi ozizira ndi madzi otentha, nthawi zambiri okhazikika m'madzi okhazikika ambiri.
Hydroxyethyl cellulose (hec) ndi chikasu choyera kapena chowoneka bwino, chosawoneka bwino, chomwe chimakonzedwa ndi makonda a alkalinine celluuse (kapena chlleohydrin). Cellowec cellulose yopanda. Chifukwa Hec ali ndi katundu wabwino, kuyimitsa, kubalalika, kuphatikizika, kulumikizana, kupanga chinyezi, kumangirira, chakudya, pepala ndi polymerization ndi minda ina. 40 Mesh Kusaka mitengo ≥ 99%; kutentha kofewa: 135-140 ° C; Kuwonekera kwa kachulukidwe kowoneka: 0.35-0.61g / ml; Kutentha kutentha: 205-210 ° C; liwiro lotentha pang'ono; Kutentha kwa Equilium: 23 ° C; 50% 6% ku RH, 29% pa 84% rh.
Momwe mungagwiritsire ntchito hydroxyethyl cellulose
anawonjezera mwachindunji panthawi yopanga
1. Onjezani madzi oyera ku chidebe chachikulu chokhala ndi chosakanizira chachikulu. a
Hydroxyethyl cellulose
2. Yambani kukweza mosalekeza mwachangu ndikung'amba pang'onopang'ono hydroththyl cellulose poyankha. a
3. Pitilizani kusokoneza mpaka tinthu tating'onoting'ono tanyowa. a
4. Kenako onjezerani othandizira oteteza mphezi, owonjezera owonjezera monga utoto, kubalalika Edzi, Ammonia. a
5. Muziganiza mpaka zonse za hydroxthyl cellulose imasungunuka kwathunthu (mawonekedwe a yankholi limachuluka kwambiri) musanawonjezere zigawo zina mu formula, ndikupera mpaka chinthu chomaliza.
Okonzeka ndi amayi
Njirayi ndikuwonetsetsa zakumwa zakumwa za mayi ndi kuchuluka kwambiri, kenako ndikuwonjezera penti ya latex. Ubwino wa njirayi ndikuti umasinthasintha kwambiri ndipo amatha kuwonjezeredwa ndi utoto womaliza, koma uyenera kusungidwa bwino. Masitepewo ndi ofanana ndi gawo 1-4 mu njira 1, kusiyana ndikuti palibe chifukwa cholimbikitsira mpaka kusungunuka kwathunthu m'mawonekedwe a viscous.
Phala la phenology
Popeza ma sodic okhazikika ndi osavomerezeka a hydroxyethyl cellulose, ma soric solic amatha kugwiritsidwa ntchito kukonza phala. Ogwiritsa ntchito sol sol sol okhazikika ndi zakumwa zopangidwa monga Ethylene Glycol, Propylene Glycol ndi fomu ya mafilimu (monga ethylene glycol kapena utoto wa utoto. Madzi ayezi ndi osungunulira osauka, omwe madzi oundana nthawi zambiri amagwiritsidwa ntchito limodzi ndi zakumwa zopangidwa mophika poyipitsa. Ma hydroxyethyl cellulose ya phala imatha kuwonjezedwa mwachindunji penti, ndipo hydroxyethyl cellulose yagawika ndikutupa mu phala. Mukawonjezeredwa pa utoto, imasungunuka nthawi yomweyo ndikuyamba kuchita bwino. Pambuyo powonjezera, sungani zolimbitsa mpaka hydroxyethyl cellulose ndi yunifolomu. Nthawi zambiri, phala limapangidwa ndi kusakaniza magawo asanu ndi limodzi a zosungunulira kapena madzi oundana ndi gawo limodzi la hydroxyethyl cellulose. Pakatha pafupifupi mphindi 6-30, ma hydroxyethyl cellose adzala ndi hydrolyzyzed komanso kutupa mwachidziwikire. M'chilimwe, kutentha kwamadzi kumakhala kwakukulu kwambiri, kotero sioyenera kugwiritsa ntchito phala.
Kusamala kwa hydroxyethyl cellulose
Popeza ma sydroxyethyl opaleshoni ali ndi ufa kapena cellulose yolimba, ndizosavuta kusamalira m'madzi malinga ngati zinthu zotsatirazi zimakhudzidwa. a
1. Asanayambe ndi mutawonjezera hydroththyl cellulose, ziyenera kulimbikitsidwa mosalekeza mpaka yankho likaonekeratu. a
2. Iyenera kukhala yosemphana pang'ono mu thanki yosakanikirana, musawonjezere mwachindunji za hydroxethyl cellulose kapena hydroxethyl cellulose yomwe yapanga zotupa ndi mipira mu thanki yosakanikirana. 3. Kutentha kwa madzi ndi mtengo wa PH m'madzi kumakhala chibwenzi chodziwikiratu ndi kusungunuka kwa hydroxethyl cellulose, chidwi chachikulu chimayenera kulipidwa. a
4. Osamawonjezera zinthu zina za alkaline kuti chisakanizo chisanachitike hydroxethyl cellulose ufa umawotchedwa m'madzi. Kukweza mtengo wa PH mutatha kutentha kudzathandiza kusungunuka. a
5. Monga momwe mungathere, onjezani wotsutsa-fungal wothandizila kuyambiranso. a
6. Makina opangidwa ndi ma hydroxyethyl nthawi zambiri sakhala osavuta kupanga zotupa kapena magawo, kapena mtundu wa mafayilo ochepa pambuyo powonjezera madzi.
Amagwiritsidwa ntchito ngati Thicner, othandizira, zomatira, odzola, mafuta, mafuta, komanso piritsi, ndikugwiritsanso ntchito mafupa- Lembani kukonzekera. Itha kugwiritsidwanso ntchito ngati khola la chakudya.
Post Nthawi: Feb-02-2023