MHEC yomanga

Mulingo womanga MHEC

Kalasi yomanga MHEC Methyl HydroxyethylCelliloseNdi ufa woyera wopanda fungo, wopanda kukoma, wopanda poizoni womwe ungasungunuke m'madzi ozizira kuti upange yankho lowoneka bwino lokhuthala. Uli ndi mawonekedwe a kukhuthala, kugwirizana, kufalikira, emulsification, kupanga filimu, kuyimitsidwa, kulowetsedwa, gelation, ntchito pamwamba, kusunga chinyezi ndi colloid yoteteza. Popeza yankho lamadzi lili ndi ntchito yogwira ntchito pamwamba, lingagwiritsidwe ntchito ngati choteteza cha colloidal, emulsifier ndi dispersant. MHEC methyl Hydroxyethylcellulose yankho lamadzi lili ndi hydrophilicity yabwino ndipo ndi chothandizira kusunga madzi bwino. Hydroxyethyl methyl cellulose ili ndi magulu a hydroxyethyl, kotero ili ndi mphamvu yabwino yolimbana ndi nkhungu, kukhazikika kwabwino kwa viscosity komanso kukana chimfine panthawi yosungidwa kwa nthawi yayitali.

Kapangidwe ka thupi ndi mankhwala:

Mawonekedwe: MHEC ndi yoyera kapena pafupifupi yoyera ngati ufa wa ulusi kapena granular; yopanda fungo.

Kusungunuka: MHEC imatha kusungunuka m'madzi ozizira ndi madzi otentha, chitsanzo cha L chimasungunuka m'madzi ozizira okha, MHEC sisungunuka m'zinthu zambiri zachilengedwe. Pambuyo pokonza pamwamba, MHEC imafalikira m'madzi ozizira popanda kusonkhana, ndipo imasungunuka pang'onopang'ono, koma imatha kusungunuka mwachangu posintha PH yake ya 8 ~ 10.

Kukhazikika kwa PH: Kukhuthala kwa PH sikusintha kwenikweni mkati mwa 2 ~ 12, ndipo kukhuthala kwa PH kumachepa kupitirira mtunda uwu.

Kuchuluka kwa maukonde: 40 mesh pass rate ≥99% 80 mesh pass rate 100%.

Kuchuluka kooneka: 0.30-0.60g/cm3.

Magiredi a Zamalonda

Kugwiritsa ntchito 

MHEC methyl Hydroxyethyl cellulose yopangidwa ndi gulu lomanga ingagwiritsidwe ntchito ngati colloid yoteteza, emulsifier ndi dispersant chifukwa cha ntchito yake yogwira ntchito pamwamba pa madzi ake. Zitsanzo za momwe imagwiritsidwira ntchito ndi izi:

1. Mphamvu ya methylhydroxyethylcellulose pa ntchito ya simenti. Hydroxyethylcellulose ya mtundu wa MHEC methyl Hydroxyethylcellulose ndi ufa woyera wopanda fungo, wopanda kukoma, wopanda poizoni womwe ungasungunuke m'madzi ozizira kuti upange yankho lowoneka bwino la viscous. Ili ndi mawonekedwe a kukhuthala, kugwirizana, kufalikira, emulsification, kupanga filimu, kuyimitsidwa, kulowetsedwa, gelation, ntchito pamwamba, kusunga chinyezi ndi colloid yoteteza. Popeza yankho lamadzi lili ndi ntchito yogwira ntchito pamwamba, lingagwiritsidwe ntchito ngati colloid yoteteza, emulsifier ndi dispersant. Hydroxyethyl cellulose ya mtundu wamadzi ili ndi hydrophilicity yabwino ndipo ndi wothandizira bwino wosunga madzi.
2. Konzani utoto wopumulira wokhala ndi kusinthasintha kwakukulu, womwe umapangidwa ndi zigawo zotsatirazi potengera kulemera kwa zinthu zopangira: 150-200g ya madzi oyeretsedwa; 60-70g ya emulsion yoyera ya acrylic; 550-650g ya calcium yolemera; 70-90g ya talc; 30-40g ya yankho lamadzi la methyl cellulose; 10-20g ya yankho lamadzi la lignocellulose; 4-6g ya zothandizira kupanga filimu; 1.5-2.5g ya fungicide yoteteza ku mavairasi; 1.8-2.2g ya dispersant; 1.8-2.2g ya wothandizira kunyowetsa; Thickener 3.5-4.5g; ethylene glycol 9-11g; yankho lamadzi la MHEC la kalasi ya Nyumba limapangidwa ndi 2-4% MHEC ya kalasi ya Nyumba yosungunuka m'madzi;ulusi wa celluloseyankho lamadzi limapangidwa ndi 1 -3%ulusi wa celluloseimapangidwa mwa kusungunuka m'madzi.

Momwe mungapangireMHEC yomanga？

ThekupangaNjira Yopangira MHEC ya methyl hydroxyethyl cellulose ndi yakuti thonje loyengedwa limagwiritsidwa ntchito ngati zinthu zopangira ndipo ethylene oxide imagwiritsidwa ntchito ngati chothandizira kutenthetsa MHEC ya kalasi yomanga. Zipangizo zopangira MHEC ya kalasi yomanga zimakonzedwa m'zigawo ndi kulemera kwake: magawo 700-800 a toluene ndi isopropanol osakaniza ngati solvent, magawo 30-40 a madzi, magawo 70-80 a sodium hydroxide, magawo 80-85 a thonje loyengedwa, mphete magawo 20-28 a oxythane, magawo 80-90 a methyl chloride, magawo 16-19 a glacial acetic acid; masitepe enieni ndi awa:

Mu gawo loyamba, onjezerani chisakanizo cha toluene ndi isopropanol, madzi, ndi sodium hydroxide mu ketulo yoyankhira, kwezani kutentha kufika pa 60-80°C, ndipo musunge kwa mphindi 20-40;

Gawo lachiwiri, kusakaniza zinthu zomwe zili pamwambapa: kuziziritsa zinthu zomwe zili pamwambapa mpaka 30-50°C, onjezerani thonje loyengedwa bwino, thirani ndi chisakanizo cha toluene ndi isopropanol, tulutsani ku 0.006Mpa, mudzaze nayitrogeni m'malo mwa zinthu zitatu, ndikuyikamo alkalis mutasintha. Mikhalidwe ya alkali ndi iyi: nthawi ya alkali ndi maola awiri, ndipo kutentha kwa alkali ndi 30℃.-50℃;

Gawo lachitatu, etherification: pambuyo pa alkalization, reactor imachotsedwa ku 0.05～0.07MPa, ethylene oxide ndi methyl chloride zimawonjezedwa ndikusungidwa kwa mphindi 30～Mphindi 50; gawo loyamba la etherification: 40～60℃, 1.0～Maola 2.0, kuthamanga kumayendetsedwa pakati pa 0.15-0.3Mpa; gawo lachiwiri la etherification: 60～90℃, 2.0～Maola 2.5, kupanikizika kumayendetsedwa pakati pa 0.4-0.8Mpa;

Gawo lachinayi, kuletsa: onjezani acetic acid yoyezedwa muyeso pasadakhale ku desolventizer, kanikizani mu zinthu zomwe zatenthedwa kuti zithetse, onjezerani kutentha kufika pa 75～80℃ kuti madzi asungunuke, kutentha kudzakwera kufika pa 102℃, ndipo pH idzakhala 68. Madzi asungunuke akatha; dzazani ketulo yosungunula madzi ndi madzi a pampopi okonzedwa ndi chipangizo chosinthira cha osmosis pa 90℃.～100℃;

Gawo lachisanu, kutsuka pogwiritsa ntchito centrifuge: zipangizo zomwe zili mu gawo lachinayi zimayikidwa ndi centrifuge yopingasa, ndipo zipangizo zomwe zalekanitsidwa zimasamutsidwira ku ketulo yodzala ndi madzi otentha pasadakhale kuti zitsukidwe;

Gawo lachisanu ndi chimodzi, kuumitsa pogwiritsa ntchito centrifugal: zinthu zotsukidwa zimanyamulidwa kupita ku choumitsira pogwiritsa ntchito screw centrifuge yopingasa, zinthuzo zimaumitsidwa pa 150-170°C, ndipo zinthu zouma zimaphwanyidwa ndikupakidwa.

Poyerekeza ndi ukadaulo wopangira cellulose ether womwe ulipo, pakadali panonjira yopangiraImagwiritsa ntchito ethylene oxide ngati chinthu chotenthetsera pokonzekera MHEC methyl hydroxyethyl cellulose ya Building grade, ndipo chifukwa ili ndi magulu a hydroxyethyl, ili ndi mphamvu yabwino yoteteza ma fungus. Imakhazikika bwino mu viscosity komanso imakana mildew ikasungidwa kwa nthawi yayitali. Imatha kulowa m'malo mwa ma ether ena a cellulose.

BMHEC ya digiri yomangandi zinthu zochokera ku ether ya cellulose,Cellulose ether ndi mankhwala a polymer okhala ndi ntchito zosiyanasiyana zopangidwa kuchokera ku cellulose yachilengedwe ya polymer kudzera mu mankhwala a mankhwala. Popeza cellulose nitrate ndi cellulose acetate zinapangidwa m'zaka za m'ma 1800, akatswiri a zamankhwala apanga mitundu yambiri ya cellulose derivatives ya cellulose ethers. Magawo atsopano ogwiritsidwa ntchito akupezeka nthawi zonse ndipo magawo ambiri amafakitale akugwiritsidwa ntchito. Zinthu za ether za cellulose monga sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), methyl hydroxyethyl cellulose (MHEC) Ndipo methyl hydroxypropyl cellulose (MHPC) ndi ma ether ena a cellulose amadziwika kuti "industrial monosodium glutamate" ndipo MHEC ya grade grade yagwiritsidwa ntchito kwambiri mu matailosi omatira, matope ouma, simenti ndi gypsum plasters ndi zina zotero.

Kupaka:

Matumba a mapepala okwana 25kg okhala ndi matumba a PE mkati.

20'FCL: Matani 12 okhala ndi mapaleti, Matani 13.5 opanda mapaleti.

40'FCL: Matani 24 okhala ndi mapaleti, Matani 28 opanda mapaleti.