Hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) ndi zotumphukira za cellulose ether zosakhala ndi ionic zomwe zimatha kukhala limodzi ndi ma polima ena ambiri osungunuka m'madzi, zowonjezera, ndi mchere. HEC ili ndi katundu wa thickening, kuyimitsidwa, adhesion, emulsification, filimu yokhazikika, kufalikira, kusunga madzi, kuteteza tizilombo toyambitsa matenda ndi chitetezo cha colloidal. Angagwiritsidwe ntchito kwambiri zokutira, zodzoladzola, kubowola mafuta ndi mafakitale ena.

Zinthu zazikulu za Hydroxyethyl cellulose(HEC) ndikuti zimatha kusungunuka m'madzi ozizira ndi madzi otentha, ndipo zilibe mawonekedwe a gel. Ili ndi mitundu yosiyanasiyana yosinthira, solubility ndi mamasukidwe akayendedwe. Lili ndi kukhazikika kwabwino kwa kutentha (pansi pa 140 ° C) ndipo silimatulutsa pansi pa acidic. mvula. Njira yothetsera hydroxyethyl cellulose ikhoza kupanga filimu yowonekera, yomwe ili ndi zinthu zopanda ma ionic zomwe sizimagwirizanitsa ndi ions ndipo zimakhala zogwirizana bwino.

Kufotokozera Kwamankhwala

Zogulitsa Maphunziro 

CZotsatira za HEC

1.Kunenepa

HEC ndiwowonjezera bwino pakupaka ndi zodzoladzola. Pakugwiritsa ntchito, kuphatikiza kukhuthala ndi kuyimitsidwa, chitetezo, dispersibility, ndi kusunga madzi kumabweretsa zabwino zambiri.

2.Pseudoplasticity

Pseudoplasticity amatanthauza katundu kuti mamasukidwe akayendedwe a yankho amachepetsa ndi kuwonjezeka liwiro. Utoto wa latex wokhala ndi HEC ndi wosavuta kugwiritsa ntchito ndi maburashi kapena odzigudubuza ndipo ukhoza kukulitsa kusalala kwa pamwamba, zomwe zingapangitsenso ntchito yabwino; ma shampoos okhala ndi HEC ali ndi madzi abwino komanso owoneka bwino, osavuta kusungunula, komanso osavuta kubalalika.

3.Kulolera mchere

HEC imakhala yokhazikika mumchere wochuluka kwambiri ndipo sichidzawonongeka kukhala ionic state. Kugwiritsidwa ntchito mu electroplating, pamwamba pa zigawo zopukutidwa zimatha kukhala zokwanira komanso zowala. Chochititsa chidwi kwambiri ndi chakuti imakhalabe ndi viscosity yabwino ikagwiritsidwa ntchito mu utoto wa latex wokhala ndi borate, silicate ndi carbonate.

4.Kupanga mafilimu

Mafilimu opanga mafilimu a HEC angagwiritsidwe ntchito m'mafakitale ambiri. Popanga mapepala, kuvala ndi HEC-containing glazing agent kungalepheretse kulowa kwa mafuta, ndipo kungagwiritsidwe ntchito pokonzekera njira zina zopangira mapepala; mu ndondomeko kupota, HEC akhoza kuonjezera elasticity wa ulusi ndi kuchepetsa mawotchi kuwonongeka kwa iwo. Pakupanga, utoto ndi kumaliza kwa nsalu, HEC imatha kukhala ngati filimu yoteteza kwakanthawi. Ngati chitetezo chake sichikufunika, chimatha kutsukidwa ndi madzi.

5.Kusunga madzi

HEC imathandiza kuti chinyontho cha dongosolo likhale labwino. Chifukwa chochepa cha HEC mu njira yamadzimadzi chikhoza kupeza zotsatira zabwino zosungira madzi, kotero kuti dongosolo limachepetsa kufunikira kwa madzi panthawi ya batching. Popanda kusungirako madzi ndi kumamatira, matope a simenti amachepetsa mphamvu zake ndi kugwirizanitsa, ndipo dongo limachepetsanso pulasitiki yake pansi pa zovuta zina.

Mapulogalamu

1.Latex utoto

Hydroxyethyl cellulose ndizomwe zimagwiritsidwa ntchito kwambiri pazovala za latex. Kuphatikiza pakukulitsa zokutira za latex, zimathanso kutulutsa, kubalalitsa, kukhazikika ndikusunga madzi. Amadziwika ndi kukhuthala kwakukulu, kukula kwamtundu wabwino, kupanga mafilimu ndi kukhazikika kosungirako. Hydroxyethyl cellulose ndi yochokera ku cellulose yopanda ionic ndipo imatha kugwiritsidwa ntchito mumitundu yambiri ya pH. Zimagwirizana bwino ndi zinthu zina zomwe zili mu gawoli (monga inki, zowonjezera, zodzaza ndi mchere). Zopaka zokhuthala ndi hydroxyethyl cellulose zimakhala ndi rheology yabwino komanso pseudoplasticity pamitengo yosiyanasiyana yometa ubweya. Njira zomangira monga kupukuta, zokutira ndi kupopera mbewu mankhwalawa zitha kukhazikitsidwa. Kumanga kwake ndikwabwino, sikophweka kudontha, kugwedezeka ndi kuwaza, komanso malo owongolera ndi abwino.

2.Polima

Ma cellulose a Hydroxyethyl ali ndi ntchito za dispersing, emulsifying, suspending and stabilizing mu polymerization kapena copolymerization chigawo chimodzi cha kupanga utomoni, ndipo angagwiritsidwe ntchito ngati colloid zoteteza. Iwo amakhala ndi mphamvu dispersing mphamvu, chifukwa mankhwala ali woonda tinthu "filimu", chabwino tinthu kukula, yunifolomu tinthu mawonekedwe, lotayirira mawonekedwe, fluidity wabwino, mkulu mankhwala transparency, ndi processing zosavuta. Popeza mapadi hydroxyethyl akhoza kusungunuka m'madzi ozizira ndi madzi otentha ndipo alibe gelation kutentha mfundo, ndi oyenera zosiyanasiyana polymerization zimachitikira.

The zofunika thupi zimatha dispersant ndi padziko (kapena interfacial) mavuto, interfacial mphamvu ndi kutentha gelation ake amadzimadzi njira. Izi zimatha hydroxyethyl mapadi ndi oyenera polymerization kapena copolymerization wa kupanga utomoni.

Ma cellulose a Hydroxyethyl amalumikizana bwino ndi ma cellulose ethers osungunuka m'madzi ndi PVA. Dongosolo lophatikizana lopangidwa ndi izi limatha kupeza zotsatira zofananira zofooka za wina ndi mnzake. Chopangidwa ndi utomoni wopangidwa pambuyo pophatikizana sichikhala ndi zabwino zokha, komanso chimachepetsa kutaya kwa zinthu.

3.Kubowola mafuta

Pobowola ndi kupanga mafuta, high-viscosity hydroxyethyl cellulose imagwiritsidwa ntchito makamaka ngati viscosifier pomaliza zamadzimadzi ndi zomaliza. Otsika mamasukidwe akayendedwe hydroxyethyl mapadi ntchito ngati madzimadzi kutaya wothandizila. Pakati pa matope osiyanasiyana omwe amafunikira pobowola, kumaliza, simenti ndi fracturing ntchito, hydroxyethyl cellulose amagwiritsidwa ntchito ngati thickener kupeza madzi abwino ndi bata la matope. Pobowola, mphamvu yonyamulira matope imatha kupitilizidwa, ndipo moyo wautumiki wa pobowola ukhoza kukulitsidwa. M'madzi otsika olimba omaliza ndi simenti, njira yabwino kwambiri yochepetsera kutaya kwamadzimadzi ya hydroxyethyl cellulose imatha kuletsa madzi ambiri kulowa mumatope ndikusintha mphamvu yopangira mafuta.

4.Daily mankhwala makampani

Hydroxyethyl cellulose ndi filimu yogwira ntchito kale, binder, thickener, stabilizer ndi dispersant mu shampoos, opopera tsitsi, neutralizers, tsitsi conditioners ndi zodzoladzola; mu zotsukira ufa Wapakatikati ndi dothi redepositing wothandizira. Ma cellulose a Hydroxyethyl amasungunuka mwachangu kutentha kwambiri, komwe kumatha kufulumizitsa kupanga ndikuwongolera kupanga bwino. Chodziwikiratu cha zotsukira zomwe zili ndi hydroxyethyl cellulose ndikuti zimatha kusintha kusalala komanso kutsekemera kwa nsalu.

5 Kumanga

Ma cellulose a Hydroxyethyl atha kugwiritsidwa ntchito pomanga monga zosakaniza za konkire, matope osakanikirana, pulasitala ya gypsum kapena matope ena, ndi zina zotero, kusunga madzi panthawi yomanga asanakhazikike ndi kuumitsa. Kuphatikiza pa kukonza kusungika kwa madzi pazomangamanga, hydroxyethyl cellulose imathanso kukulitsa kuwongolera ndi nthawi yotseguka ya pulasitala kapena simenti. Itha kuchepetsa kufooka kwa khungu, kutsetsereka komanso kugwa. Izi zitha kupititsa patsogolo ntchito yomanga, kuwonjezera magwiridwe antchito, kupulumutsa nthawi, komanso nthawi yomweyo kukulitsa kuchuluka kwa matope, potero kupulumutsa zopangira.

6 Ulimi

Hydroxyethyl mapadi ntchito mankhwala emulsion ndi kuyimitsidwa formulations, monga thickener kwa utsi emulsions kapena suspensions. Ikhoza kuchepetsa kutengeka kwa medicament ndikupangitsa kuti ikhale yolimba pamasamba a mmera, potero kumawonjezera kugwiritsa ntchito kupopera mankhwala kwa foliar. Ma cellulose a Hydroxyethyl atha kugwiritsidwanso ntchito ngati chopangira filimu chopangira zokutira mbewu; monga chomangira ndi kupanga filimu yobwezeretsanso masamba a fodya.

7 Pepala ndi inki

Ma cellulose a Hydroxyethyl atha kugwiritsidwa ntchito ngati chowerengera pamapepala ndi makatoni, komanso chowonjezera komanso choyimitsa ma inki okhala ndi madzi. Popanga mapepala, zinthu zabwino kwambiri za hydroxyethyl cellulose zimaphatikizapo kugwirizana ndi chingamu zambiri, utomoni ndi mchere wa inorganic, thovu lochepa, kugwiritsira ntchito mpweya wochepa komanso kuthekera kopanga filimu yosalala pamwamba. Kanemayo ali ndi kutsika kwapakati pamtunda komanso kuwala kolimba, komanso kumachepetsanso ndalama. Mapepala omatidwa ndi hydroxyethyl cellulose angagwiritsidwe ntchito kusindikiza zithunzi zapamwamba. Popanga inki yochokera m'madzi, inki yochokera m'madzi yokhuthala ndi hydroxyethyl cellulose imauma mwachangu, imakhala ndi mawonekedwe abwino amtundu, ndipo samayambitsa kumamatira.

8 nsalu

Itha kugwiritsidwa ntchito ngati binder ndi sizing agent pakusindikiza kwa nsalu ndi kupaka utoto ndi zokutira latex; thickening wothandizila kukula zinthu kumbuyo kwa kapeti. Mu galasi CHIKWANGWANI, angagwiritsidwe ntchito ngati kupanga wothandizira ndi zomatira; mu chikopa slurry, angagwiritsidwe ntchito monga zosintha ndi zomatira. Perekani kukhuthala kosiyanasiyana kwa zokutira kapena zomatira izi, kupangitsa kuti zokutira zikhale zofananirako komanso kumamatira mwachangu, ndipo zitha kusintha kumveka bwino kwa kusindikiza ndi utoto.

9 Zojambula za ceramic

Itha kugwiritsidwa ntchito popanga zomatira zamphamvu kwambiri zama ceramic.

10. mankhwala otsukira mano

Itha kugwiritsidwa ntchito ngati thickener popanga mankhwala otsukira mano.

Kuyika: 

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