Momwe mungagwiritsire ntchito hydroxyethyl cellulose mu utoto wa latex
1. Hydroxyethyl cellulose imagwiritsidwa ntchito popanga phala: Popeza hydroxyethyl cellulose si yosavuta kusungunuka mu organic solvents, organic solvents zina zingagwiritsidwe ntchito popanga phala. Madzi a ayezi nawonso ndi solvent yosalimba, kotero madzi a ayezi nthawi zambiri amagwiritsidwa ntchito pamodzi ndi zakumwa zachilengedwe kupanga phala. Hydroxyethyl cellulose yofanana ndi phala ikhoza kuwonjezeredwa mwachindunji ku utoto wa latex. Hydroxyethyl cellulose yanyowetsedwa mokwanira mu phala. Ikawonjezeredwa ku utoto, imasungunuka mwachangu ndikugwira ntchito ngati chokhuthala. Mukawonjezera, pitirizani kusakaniza mpaka hydroxyethyl cellulose itabalalika kwathunthu ndikusungunuka. Nthawi zambiri, phala limapangidwa posakaniza magawo asanu ndi limodzi a organic solvent kapena madzi a ayezi ndi gawo limodzi la hydroxyethyl cellulose. Pakatha mphindi pafupifupi 5-30, hydroxyethyl cellulose imasungunuka ndi kutupa moonekera. (Kumbukirani kuti chinyezi cha madzi wamba chimakhala chokwera kwambiri nthawi yachilimwe, kotero sichiyenera kugwiritsidwa ntchito kukonza phala.)
2. Onjezani hydroxyethyl cellulose mwachindunji mukamapera utoto: Njira iyi ndi yosavuta ndipo imatenga nthawi yochepa. Njira yotsatizana ndi iyi:
(1) Onjezani madzi okwanira oyera mu chidebe chachikulu cha chosakanizira chodula kwambiri (nthawi zambiri, zothandizira kupanga filimu ndi zinthu zonyowetsa zimawonjezedwa panthawiyi)
(2) Yambani kusakaniza mosalekeza pa liwiro lotsika ndipo pang'onopang'ono komanso mofanana onjezerani hydroxyethyl cellulose
(3) Pitirizani kusakaniza mpaka tinthu tonse titamwazikana mofanana ndikunyowa
(4) Onjezani zowonjezera zotsutsana ndi chimfine kuti musinthe mtengo wa PH
(5) Sakanizani mpaka hydroxyethyl cellulose yonse itasungunuka kwathunthu (kukhuthala kwa yankho kumawonjezeka kwambiri), kenako onjezerani zinthu zina mu fomula, ndikupukuta mpaka utoto utapangidwa.
3. Konzani hydroxyethyl cellulose ndi mowa wothira madzi kuti mugwiritse ntchito pambuyo pake: Njira iyi ndi yokonzekera mowa wothira madzi wokhala ndi kuchuluka kwakukulu kaye, kenako muyiike mu utoto wa latex. Ubwino wa njira iyi ndikuti ndi wosinthasintha ndipo ukhoza kuwonjezeredwa mwachindunji ku utoto womalizidwa, koma uyenera kusungidwa bwino. . Masitepe ndi njira ndi ofanana ndi masitepe (1)-(4) mu njira yachiwiri, kusiyana kwake ndikuti sikufunika choyambitsa kutentha kwambiri, ndipo zinthu zina zokha zomwe zimakhala ndi mphamvu zokwanira kuti ulusi wa hydroxyethyl utuluke mofanana mu yankho ndi Can. Pitirizani kusakaniza mosalekeza mpaka utasungunuka kwathunthu kukhala yankho lokhuthala. Tiyenera kudziwa kuti mankhwala ophera tizilombo ayenera kuwonjezeredwa ku mowa wothira madzi mwachangu momwe zingathere.
Zinthu 4 zofunika kuziganizira pokonzekera mowa wa hydroxyethyl cellulose
Popeza hydroxyethyl cellulose ndi ufa wokonzedwa, ndi wosavuta kuugwira ndikusungunula m'madzi bola ngati zinthu zotsatirazi zikusamalidwa.
(1) Musanawonjezere hydroxyethyl cellulose komanso mutatha kuisakaniza, iyenera kusunthidwa mosalekeza mpaka yankholo litawonekera bwino komanso loyera.
(2) Iyenera kusefedwa pang'onopang'ono mu thanki yosakanizira, ndipo musawonjezere mwachindunji kuchuluka kwa hydroxyethyl cellulose komwe kwapanga zipolopolo kapena mipira mu thanki yosakanizira.
(3) Kutentha kwa madzi ndi pH m'madzi zili ndi ubale wofunikira ndi kusungunuka kwa hydroxyethyl cellulose, kotero chisamaliro chapadera chiyenera kuperekedwa.
(4) Musawonjezere zinthu zina zamchere mu chisakanizocho musananyowetse ufa wa hydroxyethyl cellulose. Kukweza pH mukatha kunyowetsa kumathandiza kusungunuka.
(5) Momwe mungathere, onjezani mankhwala oletsa bowa msanga.
(6) Mukagwiritsa ntchito hydroxyethyl cellulose yokhala ndi kukhuthala kwakukulu, kuchuluka kwa mowa wothira sikuyenera kupitirira 2.5-3% (potengera kulemera), apo ayi mowa wothira udzakhala wovuta kuugwiritsa ntchito.
Zinthu zomwe zimakhudza kukhuthala kwa utoto wa latex:
(1) Chifukwa cha kusakaniza kwambiri, chinyezi chimatenthedwa kwambiri pamene chikumwazika.
(2) Kuchuluka kwa zinthu zina zachilengedwe zokhuthala mu utoto ndi chiŵerengero cha kuchuluka kwa hydroxyethyl cellulose.
(3) Ngati kuchuluka kwa sopo wopaka utoto ndi kuchuluka kwa madzi omwe agwiritsidwa ntchito mu fomula ya utoto ndikoyenera.
(4) Pakupanga latex, kuchuluka kwa okosijeni monga chothandizira chotsalira kumawerengedwa.
(5) Kuwonongeka kwa chokhuthala ndi tizilombo toyambitsa matenda.
(6) Mu njira yopangira utoto, kodi ndondomeko yowonjezerapo chinthu chokhuthala ndi yoyenera?
7 Mpweya wambiri ukatsala mu utoto, kukhuthala kwake kumawonjezeka
Nthawi yotumizira: Marichi-04-2023