Hydroxyethylcellulose (HEC) ndi polima wosungunuka m'madzi womwe umagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana kuphatikiza zomangamanga, chakudya, mankhwala ndi zinthu zosamalira anthu. Ndi chinthu chachilengedwe, chosawonongeka chochokera ku cellulose, chakudya chomwe chimapezeka m'makoma a cellulose. Mu zokutira mwala wachilengedwe, HEC imagwira ntchito yofunika kwambiri pakuwongolera magwiridwe antchito komanso kukongola kwa zokutira.
Zovala zamwala zachilengedwe zimagwiritsidwa ntchito kuteteza ndi kupititsa patsogolo maonekedwe a miyala yachilengedwe monga marble, granite ndi miyala yamwala. Zovala izi zimapereka chitetezo chokwanira ku nyengo, dzimbiri, madontho ndi kukanda. Angathenso kusintha mtundu, kuwala ndi maonekedwe a mwala, potero kumawonjezera kukongola kwake kwachilengedwe.
Komabe, zokutira zamwala zachilengedwe zimakumana ndi zovuta zingapo ndikugwiritsa ntchito, kumamatira komanso kugwira ntchito. Chophimbacho chiyenera kumamatira mwamphamvu pamwamba pa mwala popanda kuwononga mwala kapena kusokoneza chilengedwe chake. Ayeneranso kugonjetsedwa ndi cheza cha UV ndi zosokoneza zina zachilengedwe zomwe zingayambitse kuwonongeka kapena kusinthika pakapita nthawi. Kuphatikiza apo, utoto uyenera kukhala wosavuta kugwiritsa ntchito, wowuma mwachangu, komanso wosakonda kusweka kapena kusenda.
Kuti athane ndi zovuta izi, zokutira zamwala zachilengedwe nthawi zambiri zimaphatikiza zowonjezera ndi zodzaza zosiyanasiyana kuti ziwongolere katundu wawo. HEC ndi imodzi mwazowonjezera zomwe zimagwiritsidwa ntchito kwambiri pazovala izi chifukwa cha mawonekedwe ake apadera.
Udindo waukulu wa HEC mu zokutira mwala zachilengedwe ndikuchita monga thickener, binder ndi rheology modifier. Mamolekyu a HEC amakhala ndi mizere yayitali yomwe imamwa madzi ndikupanga chinthu chonga gel. Izi zokhala ngati gel zimakulitsa utoto wa utoto, zomwe zimapangitsa kuti zikhale zowoneka bwino komanso zosavuta kuziyika. Kuonjezera apo, chinthu chofanana ndi gel chingapereke kufalikira kokhazikika komanso kofanana kwa zigawo zophimba, kuteteza kukhazikika kapena kupatukana.
HEC imagwira ntchito ngati chomangira kuti ipititse patsogolo kumamatira kwa zokutira pamtunda wamwala. Mamolekyu a HEC amatha kulumikizana ndi miyala yamwala ndi zida zokutira kuti apange zomangira zolimba komanso zokhalitsa. Chomangira ichi chimakana kumeta ubweya, spalling kapena delamination pansi pa kupsinjika, kuonetsetsa kumamatira kwa nthawi yayitali komanso kutetezedwa kwa miyala.
HEC imagwiranso ntchito ngati rheology modifier, kulamulira kutuluka ndi kukhuthala kwa zokutira. Ndi kusintha kuchuluka ndi mtundu wa HEC, mamasukidwe akayendedwe ndi thixotropy wa ❖ kuyanika akhoza ogwirizana kuti zigwirizane ndi ntchito njira ndi ankafuna ntchito. Thixotropy ndi katundu wa utoto umene umayenda mosavuta pamene umakhala ndi vuto la kumeta ubweya, monga panthawi yosakaniza kapena kugwiritsa ntchito, koma umakula mofulumira pamene kumeta ubweya kuchotsedwa. Katunduyu amathandizira kufalikira ndi kuphimba kwa zokutira ndikuchepetsa kudontha kapena kugwa.
Kuphatikiza pa ntchito yake yogwira ntchito, HEC imatha kukonza zokongoletsa za zokutira zamwala zachilengedwe. HEC imatha kupititsa patsogolo mtundu, kuwala ndi mawonekedwe a zokutira popanga filimu yosalala komanso yofananira pamiyala. Kanemayo amaperekanso kuchuluka kwa madzi ndi kukana madontho, kuteteza madzi kapena zakumwa zina kuti zisasunthike kapena kulowa pamwamba pamwala.
HEC ilinso ndi zinthu zachilengedwe komanso zachilengedwe zomwe ndizotetezeka kugwiritsa ntchito ndikutaya. Ndi biodegradable ndipo satulutsa zowononga zilizonse kapena utsi pakupanga kapena kugwiritsa ntchito.
Mwachidule, hydroxyethyl cellulose (HEC) imagwira ntchito yofunika kwambiri pakuwongolera magwiridwe antchito komanso kukongola kwa zokutira zamwala zachilengedwe. HEC imagwira ntchito ngati thickener, binder ndi rheology modifier, kupititsa patsogolo kukhuthala, kumamatira ndi kutuluka kwa zokutira. HEC imathanso kusintha mtundu, gloss ndi kapangidwe ka zokutira ndikupereka madzi okwanira komanso kukana madontho. Kuphatikiza apo, HEC ndi chinthu chachilengedwe, chosawonongeka komanso chotetezeka komanso chogwirizana ndi chilengedwe.
Nthawi yotumiza: Sep-12-2023