Utoto wa kalasi ya HEC

Mtundu wa utotoHEC Hydroxyethyl cellulose ndi mtundu wa polima wosasunthika m'madzi wopanda ionic, ufa woyera kapena wachikasu, wosavuta kuyenda, wopanda fungo komanso wopanda kukoma, ukhoza kusungunuka m'madzi ozizira komanso otentha, ndipo kuchuluka kwa kusungunuka kumawonjezeka ndi kutentha, nthawi zambiri sikusungunuka m'zinthu zambiri zachilengedwe. Ili ndi kukhazikika kwabwino kwa PH komanso kusintha pang'ono kwa kukhuthala pakati pa ph2-12. HEC ili ndi kukana mchere kwambiri komanso mphamvu ya hygroscopic, ndipo imakhala ndi madzi osungunuka kwambiri. Yankho lake lamadzi limagwira ntchito pamwamba ndipo zinthu zokhuthala kwambiri zimakhala ndi pseudoplasticity yapamwamba. Itha kupangidwa kukhala filimu yowonekera ya anhydrous yokhala ndi mphamvu yocheperako, yosadetsedwa mosavuta ndi mafuta, yosakhudzidwa ndi kuwala, ikadali ndi filimu yosungunuka m'madzi ya HEC. Pambuyo pokonza pamwamba, HEC imafalikira ndipo sigwirizana m'madzi, koma imasungunuka pang'onopang'ono. PH ikhoza kusinthidwa kukhala 8-10 ndikusungunuka mwachangu.

Katundu wamkulu

Hydroxyethyl cellulose(HEC)Ndiko kuti imatha kusungunuka m'madzi ozizira ndi madzi otentha, ndipo ilibe mawonekedwe a gel. Ili ndi mitundu yosiyanasiyana ya kusintha, kusungunuka ndi kukhuthala. Ili ndi kukhazikika kwabwino kwa kutentha (pansi pa 140°C) ndipo sipanga mvula pansi pa acidity. Yankho la hydroxyethyl cellulose (HEC) limatha kupanga filimu yowonekera, yomwe ili ndi mawonekedwe osakhala a ionic omwe samagwirizana ndi ma ayoni ndipo amakhala ndi mgwirizano wabwino.

Monga colloid yoteteza, Utoto wa HEC wa mtundu wa Utoto ungagwiritsidwe ntchito polima vinyl acetate emulsion kuti ukhale wolimba mu PH yochuluka. Popanga zinthu zomalizidwa, pigment, filler ndi zina zowonjezera zimafalikira mofanana, zimakhala zokhazikika komanso zimapereka mphamvu yokhuthala. Ingagwiritsidwenso ntchito pa styrene, acrylic, acrylic ndi ma polima ena opachikidwa ngati dispersants, omwe amagwiritsidwa ntchito mu utoto wa latex amatha kusintha kwambiri makulidwe, ndikuwonjezera magwiridwe antchito.

Kufotokozera kwa Mankhwala

Zogulitsa Magiredi 

Njira yogwiritsira ntchito hydroxyethyl cellulose HEC m'madzi oyenda m'madziutoto

1. Onjezani mwachindunji mukamapera utoto: njira iyi ndi yosavuta, ndipo nthawi yogwiritsidwa ntchito ndi yochepa. Njira zotsatirazi ndi izi:

(1) Onjezani madzi oyera oyenera mu VAT ya agitator yodula kwambiri (nthawi zambiri, ethylene glycol, wothandizira kunyowetsa ndi wothandizira kupanga filimu amawonjezedwa panthawiyi)

(2) Yambani kusakaniza pa liwiro lotsika ndipo pang'onopang'ono onjezerani hydroxyethyl cellulose

(3) Pitirizani kusakaniza mpaka tinthu tonse titanyowa

(4) onjezani choletsa mildew, chowongolera PH, ndi zina zotero

(5) Sakanizani mpaka hydroxyethyl cellulose yonse itasungunuka kwathunthu (kukhuthala kwa yankho kumawonjezeka kwambiri) musanawonjezere zinthu zina mu fomula, ndipo pukutani mpaka itakhala utoto.

2. yokhala ndi madzi oyembekezera: njira iyi choyamba imakhala ndi madzi ochulukirapo a mayi, kenako onjezerani utoto wa latex, ubwino wa njira iyi ndi kusinthasintha kwakukulu, ikhoza kuwonjezeredwa mwachindunji ku zinthu zomalizidwa utoto, koma iyenera kusungidwa moyenera. Masitepe ndi njira zikufanana ndi masitepe (1) - (4) mu Njira 1, kupatula kuti choyambitsa chodula kwambiri sichikufunika ndipo choyambitsa chokha chokhala ndi mphamvu zokwanira kuti ulusi wa hydroxyethyl utuluke mofanana mu yankho ndi chokwanira. Pitirizani kusakaniza mpaka itasungunuka kwathunthu kukhala yankho lokhuthala. Dziwani kuti choletsa mildew chiyenera kuwonjezeredwa ku mowa wa mayi mwachangu momwe zingathere.

3. Phenology yofanana ndi phala: Popeza zosungunulira zachilengedwe ndi zosungunulira zoipa za hydroxyethyl cellulose, zosungunulira zachilengedwezi zimatha kukhala ndi phala. Zosungunulira zachilengedwe zomwe zimagwiritsidwa ntchito kwambiri monga ethylene glycol, propylene glycol, ndi zinthu zopangira filimu (monga hexadecanol kapena diethylene glycol butyl acetate), madzi oundana nawonso ndi zosungunulira zopanda mphamvu, kotero madzi oundana nthawi zambiri amagwiritsidwa ntchito ndi zakumwa zachilengedwe mu phala. Gruel - ngati hydroxyethyl cellulose ikhoza kuwonjezeredwa mwachindunji ku utoto. Hydroxyethyl cellulose yadzazidwa mu mawonekedwe a phala. Mukawonjezera lacquer, sungunulani nthawi yomweyo ndipo mukhale ndi mphamvu yokhuthala. Mukawonjezera, pitirizani kusakaniza mpaka hydroxyethyl cellulose itasungunuka kwathunthu ndikufanana. Phala wamba limapangidwa posakaniza magawo asanu ndi limodzi a zosungunulira zachilengedwe kapena madzi oundana ndi gawo limodzi la hydroxyethyl cellulose. Pakatha mphindi pafupifupi 5-30, kalasi ya UtotoHECZimasungunuka ndi madzi ndipo zimaonekera bwino. M'chilimwe, chinyezi cha madzi chimakhala chokwera kwambiri moti sichingagwiritsidwe ntchito ngati phala.

4. Zinthu zofunika kuziganizira pokonza mowa wa hydroxyethyl cellulose mother liquor:

Pmachenjezo

1 Musanayambe ndi mutawonjezera mtundu wa utotoHEC, iyenera kusunthidwa mosalekeza mpaka yankho litakhala lowonekera bwino komanso lomveka bwino.

2. Sefa hydroxyethyl cellulose mu thanki yosakaniza pang'onopang'ono. Musayiike mu thanki yosakaniza mochuluka kapena mwachindunji mu gulu la utoto wozungulira kapena wozungulira.HEC.

3 kutentha kwa madzi ndi pH ya madzi zimagwirizana bwino ndi kusungunuka kwa mtundu wa utotoHEChydroxyethyl cellulose, kotero chisamaliro chapadera chiyenera kuperekedwa kwa iyo.

Musawonjezere zinthu zina zofunika ku chisakanizocho musanayambe utoto.HECUfa wa hydroxyethyl cellulose umanyowa ndi madzi. Kukweza pH mukatha kunyowa kumathandiza kusungunuka.

5. Momwe zingathekere, kuwonjezera msanga mankhwala oletsa mildew.

6 Mukagwiritsa ntchito utoto wokhuthala kwambiriHEC, kuchuluka kwa mowa wa mayi sikuyenera kupitirira 2.5-3% (potengera kulemera), apo ayi mowa wa mayi ndi wovuta kugwiritsa ntchito.

Zinthu zomwe zimakhudza kukhuthala kwa utoto wa latex

1. Ma thovu otsala a mpweya mu utoto, kukhuthala kwake kumawonjezeka.

2. Kodi kuchuluka kwa choyambitsa ndi madzi mu fomula ya utoto ndi kofanana?

3 mu kapangidwe ka latex, kuchuluka kwa okosijeni wotsalira wa catalyst.

4. Mlingo wa zinthu zina zachilengedwe zokhuthala mu fomula ya utoto ndi chiŵerengero cha mlingo ndi mtundu wa utotoHEC.)

5. Pakupanga utoto, ndondomeko ya masitepe owonjezera chokhuthala ndiyoyenera.

6. Chifukwa cha kugwedezeka kwambiri komanso chinyezi chochuluka panthawi yobalalika.

7. Kuwonongeka kwa tizilombo toyambitsa matenda.

Kupaka: 

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

20'FCL yonyamula matani 12 ndi mphasa

40'FCL yonyamula matani 24 ndi mphasa