HEC ya Paint

HEC ndi chidule cha hydroxyethyl Cellulose. Hydroxyethyl celluloseHECndi woyera kapena wotumbululuka wachikasu, zoipa, sanali poizoni, fibrous kapena powdery olimba okonzeka ndi etherification wa zamchere mapadi ndi ethylene okusayidi (kapena chloroethanol). Ndi non-ionic soluble cellulose ether. Monga sanali ionic surfactant, kuwonjezera thickening, kuyimitsidwa, kugwirizana, kuyandama, filimu kupanga, dispersing, madzi posungira ndi chitetezo.

Chemical Mawonekedwe:

1, HEC ikhoza kusungunuka m'madzi otentha kapena ozizira, kutentha kwakukulu kapena kuwira sikumadutsa, kotero kuti imakhala ndi mitundu yambiri ya solubility ndi viscosity properties, ndi gel osatentha;

2, non-ionic ake akhoza kukhala limodzi ndi osiyanasiyana ma polima ena osungunuka m'madzi, ma surfactants, mchere, ndicolloidal thickener wabwino kwambiri wokhala ndi njira zambiri za electrolyte;

3, mphamvu yosungira madzi ndiyokwera kawiri kuposa methyl cellulose, yosinthika bwino,

4. HEC ili ndi mphamvu yobalalika kwambiri poyerekeza ndi methyl cellulose yodziwika bwino ndi hydroxypropyl methyl cellulose, koma mphamvu yamphamvu kwambiri yoteteza colloid.

Chifukwa chake, cellulose ya hydroxyethyl imagwiritsidwa ntchito kwambiri pazakudya zamafuta, zokutira, zomanga, zamankhwala ndi chakudya, nsalu, kupanga mapepala ndi ma polima polima ndi madera ena.

Main katundu waHECkwa utoto wa latex

1.Kukhuthala katundu

Hydroxyethyl cellulose (HEC) ndi yokhuthala bwino pakupaka ndi zodzoladzola. Pogwiritsira ntchito, kuphatikiza kwa makulidwe ake ndi kuyimitsidwa, chitetezo, kufalikira ndi kusunga madzi kudzatulutsa zotsatira zabwino.

1. pseudoplastic

Pseudoplasticity ndi chinthu chomwe kukhuthala kwa yankho kumachepa ndikuwonjezeka kwa liwiro lozungulira. HEC yomwe ili ndi utoto wa latex ndiyosavuta kugwiritsa ntchito ndi burashi kapena chodzigudubuza ndipo imatha kukulitsa kusalala kwa pamwamba, komwe kungapangitsenso ntchito yabwino; Ma shampoos okhala ndi hec ndi amadzimadzi komanso amata, amasungunuka mosavuta komanso omwazika mosavuta.

1. Kukana mchere

HEC imakhala yokhazikika muzitsulo za saline zokhazikika kwambiri ndipo siziwola kukhala mayiko a ionic. Kugwiritsidwa ntchito mu electroplating, kumatha kupangitsa kuti plating ikhale yokwanira, yowala kwambiri. Chochititsa chidwi kwambiri ndikugwiritsa ntchito utoto wa borate, silicate ndi carbonate latex, akadali ndi mamasukidwe abwino kwambiri.

4.A membranous

Mapangidwe a membrane a HEC angagwiritsidwe ntchito m'mafakitale ambiri. Mu ntchito papermaking, TACHIMATA ndi HEC glazing wothandizira, angalepheretse mafuta kulowa, ndipo angagwiritsidwe ntchito kukonzekera mbali zina za papermaking njira; HEC kumawonjezera elasticity wa ulusi pa ndondomeko kuluka motero amachepetsa mawotchi kuwonongeka kwa iwo. HEC imagwira ntchito ngati filimu yotetezera kwakanthawi panthawi ya kukula ndi utoto wa nsalu ndipo imatha kutsukidwa kuchokera ku nsalu ndi madzi pamene chitetezo chake sichifunikira.

1. Kusunga madzi

HEC imathandiza kuti chinyontho cha dongosolo likhale labwino. Chifukwa chochepa cha HEC mu njira yamadzimadzi chingathe kukwaniritsa bwino kusunga madzi, kotero kuti dongosolo limachepetsa kufunikira kwa madzi pokonzekera. Popanda kusungirako madzi ndi kumamatira, matope a simenti amachepetsa mphamvu yake ndi kumamatira, ndipo dongo limachepetsanso pulasitiki pansi pa zovuta zina.

Njira yogwiritsira ntchito hydroxyethyl cellulose HECmu utoto wa latex

1. Onjezerani mwachindunji pamene mukupera pigment: njira iyi ndi yosavuta, ndipo nthawi yogwiritsidwa ntchito ndi yochepa. Njira zatsatanetsatane ndi izi:

(1) Onjezani madzi oyeretsedwa oyenera mu VAT ya chowotcha chodula kwambiri (nthawi zambiri, ethylene glycol, chonyowetsa ndi wopangira filimu akuwonjezeredwa panthawiyi)

(2) Yambani kuyambitsa pa liwiro lotsika ndikuwonjezera pang'onopang'ono hydroxyethyl cellulose

(3) Pitirizani kusonkhezera mpaka tinthu tambirimbiri tanyowa

(4) onjezani mildew inhibitor, PH regulator, etc

(5) Limbikitsani mpaka ma cellulose onse a hydroxyethyl atasungunuka kwathunthu (kukhuthala kwa yankho kumachulukirachulukira) musanawonjezere zigawo zina mu chilinganizo, ndikupera mpaka utoto.

2 okonzeka ndi mayi madzi kuyembekezera: njira imeneyi choyamba okonzeka ndi apamwamba ndende ya mayi madzi, ndiyeno kuwonjezera lalabala utoto, ubwino wa njira imeneyi ndi kusinthasintha kwambiri, akhoza mwachindunji anawonjezera utoto anamaliza mankhwala, koma ayenera kusunga koyenera. Masitepe ndi njira zofanana ndi masitepe (1) - (4) mu Njira 1, kupatulapo kuti chowombera chodula kwambiri sichifunikanso ndipo choyambitsa china chokha chokhala ndi mphamvu zokwanira kusunga ulusi wa hydroxyethyl wobalalika mu yankho ndi wokwanira. Pitirizani kuyambitsa mpaka utasungunuka kwathunthu mu njira wandiweyani. Dziwani kuti inhibitor ya mildew iyenera kuwonjezeredwa ku mowa wa amayi mwamsanga.

3. Porridge ngati phenology: Popeza zosungunulira za organic ndi zosungunulira zoyipa za hydroxyethyl cellulose, zosungunulira za organic izi zitha kukhala ndi phala. Zomwe zimagwiritsidwa ntchito kwambiri ndi organic solvents monga ethylene glycol, propylene glycol, ndi mafilimu opanga mafilimu (monga hexadecanol kapena diethylene glycol butyl acetate), madzi oundana amakhalanso osungunulira bwino, choncho madzi a ayezi nthawi zambiri amagwiritsidwa ntchito ndi zakumwa zamadzimadzi mu phala.

Gruel - ngati hydroxyethyl cellulose akhoza kuwonjezeredwa mwachindunji ku utoto. Hydroxyethyl cellulose yakhutitsidwa mu mawonekedwe a phala. Pambuyo powonjezera lacquer, sungunulani nthawi yomweyo ndikukhala ndi mphamvu yowonjezereka. Pambuyo powonjezera, pitirizani kuyambitsa mpaka hydroxyethyl cellulose itasungunuka kwathunthu ndi yunifolomu. Phala wamba amapangidwa posakaniza magawo asanu ndi limodzi a organic zosungunulira kapena madzi a ayezi ndi gawo limodzi la hydroxyethyl cellulose. Pakatha pafupifupi mphindi 5-30, hydroxyethyl cellulose imatsika ndikuwuka mowonekera. M'chilimwe, chinyezi chamadzi chimakhala chokwera kwambiri kuti chitha kugwiritsidwa ntchito phala.

4.Zinthu zofunika kuziganizira popanga mowa wa hydroxyethyl cellulose

Popeza hydroxyethyl cellulose ndi mankhwala granular ufa, n'zosavuta kugwira ndi kupasuka m'madzi ndi zodzitetezera zotsatirazi.

Zindikirani

4.1 Isanayambe kapena itatha kuwonjezera pa cellulose ya hydroxyethyl, iyenera kugwedezeka mosalekeza mpaka yankho likuwonekera bwino komanso lomveka.

4.2. Sefa hydroxyethyl cellulose mu thanki yosakaniza pang'onopang'ono. Osawonjezera mu thanki yosanganikirana yochulukirapo kapena mwachindunji mu chochuluka kapena chozungulira cha hydroxyethyl cellulose.

4.3 kutentha kwa madzi ndi pH mtengo wa madzi zimagwirizana bwino ndi kusungunuka kwa cellulose ya hydroxyethyl, kotero kuyenera kuperekedwa kwapadera kwa izo.

4.4Osawonjezerapo chinthu chofunikira pakusakaniza ufa wa hydroxyethyl cellulose usanavidwe ndi madzi. Kukweza pH pambuyo pa kuviika kumathandiza kusungunuka.

4.5 Momwe kungathekere, kuwonjezera koyambirira kwa mildew inhibitor.

4.6 Pamene ntchito mkulu mamasukidwe akayendedwe hydroxyethyl mapadi, ndende ya mowa mayi sayenera kuposa 2.5-3% (ndi kulemera), apo ayi mowa mayi n`kovuta ntchito.

Zinthu zomwe zimakhudza kukhuthala kwa utoto wa latex

1 Kuchuluka kwa mpweya wotsalira mu utoto, kumapangitsanso kukhuthala kwamphamvu.

2 Kodi kuchuluka kwa choyambitsa ndi madzi mu fomula ya penti kumagwirizana?

3 mu kaphatikizidwe wa latex, zotsalira chothandizira okusayidi zili kuchuluka.

4. Mlingo wa zina zachilengedwe thickeners mu utoto chilinganizo ndi mlingo chiŵerengero ndiHEChydroxyethyl cellulose.)

5 popanga utoto, dongosolo la masitepe owonjezera thickener ndiloyenera.

6 Chifukwa cha chipwirikiti chochuluka komanso chinyezi chambiri pa kubalalitsidwa.

7 Microbial kukokoloka kwa thickener.