Zothandizira kukwezaZomwe zimagwiritsidwa ntchito popaka utoto nthawi zambiri zimagawidwa m'magulu osakaniza solvents, acrylic acid, silicone, fluorocarbon polymers ndi cellulose acetate. Chifukwa cha makhalidwe ake otsika a kupsinjika kwa pamwamba, zinthu zoyezera sizingathandize kokha kuti utotowo ukhale wofanana, komanso zingayambitse zotsatirapo zoyipa. Pakugwiritsa ntchito, chinthu chachikulu chomwe chimaganiziridwa ndi zotsatira zoyipa za zinthu zoyezera pa kubwezeretsanso kwa utoto ndi mphamvu zotsutsana ndi ma cratering, ndipo kugwirizana kwa zinthu zoyezera zomwe zasankhidwa kuyenera kuyesedwa kudzera mu zoyeserera.

1. Chosakaniza choyezera zosungunulira zosiyanasiyana

Kwenikweni imapangidwa ndi zosungunulira za hydrocarbon zokhala ndi mfundo zambiri zowira, ma ketone, ma ester kapena zosungunulira zabwino kwambiri zamagulu osiyanasiyana ogwira ntchito, ndi zosakaniza za zosungunulira zokhala ndi mfundo zambiri zowira. Pokonzekera ndikugwiritsa ntchito, chisamaliro chiyenera kuperekedwa ku kuchuluka kwake kozizira, kuchuluka kwa kutentha komanso kusungunuka, kotero kuti chophimbacho chikhale ndi kuchuluka kwa kutentha kwa madzi komanso kusungunuka panthawi youma. Ngati kuchuluka kwa kutentha kuli kochepa kwambiri, chidzakhalabe mu filimu ya utoto kwa nthawi yayitali ndipo sichingatulutsidwe, zomwe zidzakhudza kuuma kwa filimu ya utoto.

Mtundu uwu wa chinthu choyezera umagwiritsidwa ntchito kokha pokonza zolakwika za kulinganiza (monga kuchepa, kuyera, ndi kunyezimira koipa) komwe kumachitika chifukwa cha kuuma mwachangu kwa chosungunulira chophimba komanso kusasungunuka bwino kwa zinthu zoyambira. Mlingo nthawi zambiri umakhala 2% ~ 7% ya utoto wonse. Izi zidzawonjezera nthawi youma ya chophimbacho. Pazophimba zowuma kutentha kwa chipinda (monga utoto wa nitro) zomwe zimatha kugwa zikagwiritsidwa ntchito pa facade, sizimangothandiza pakulinganiza, komanso zimathandizanso kukonza kunyezimira. Panthawi yowuma, zimathanso kuletsa thovu losungunulira ndi mabowo ang'onoang'ono omwe amayamba chifukwa cha kusungunuka mwachangu kwa chosungunulira. Makamaka zikagwiritsidwa ntchito kutentha kwambiri komanso chinyezi chambiri, zimatha kuletsa pamwamba pa filimu ya utoto kuti isaume msanga, kupereka mawonekedwe ofanana a solvent volatilization, ndikuletsa chifunga choyera mu utoto wa nitro. Mtundu uwu wa chinthu choyezera umagwiritsidwa ntchito limodzi ndi zinthu zina zoyezera.

2. Zothandizira kulinganiza acrylic

Mtundu uwu wa chinthu choyezera umakhala makamaka copolymer ya ma ester a acrylic. Makhalidwe ake ndi awa:

(1) Alkyl ester ya acrylic acid imapereka ntchito yoyambira pamwamba;

(2) Zake−COOH,−OH, ndipo−NR ingathandize kusintha momwe kapangidwe ka alkyl ester kagwirizanirana;

(3) Kulemera kwa mamolekyulu kumagwirizana mwachindunji ndi magwiridwe antchito omaliza. Kugwirizana kofunikira komanso kapangidwe ka unyolo wa polyacrylate ndizofunikira kuti zikhale chothandizira choyenera kulinganiza. Njira yake yolinganiza yomwe ingatheke imawonekera makamaka mtsogolo;

(4) Imakhala ndi mphamvu zoletsa thovu komanso kuyeretsa m'njira zambiri;

(5) Bola ngati pali magulu ochepa ogwira ntchito (monga -OH, -COOH) mu cholendewera, zotsatira zake pa kukonzanso sizikuoneka, koma pali kuthekera kokhudza kukonzanso;

(6) Palinso vuto la kufananiza polarity ndi compatibility, zomwe zimafunanso kusankha koyesera.

3. Chothandizira kulinganiza silikoni

Ma silicone ndi mtundu wa polima wokhala ndi unyolo wa silicon-oxygen bond (Si-O-Si) monga mafupa ndi magulu achilengedwe olumikizidwa ku maatomu a silicon. Ma silicone ambiri amakhala ndi unyolo wam'mbali wokhala ndi mphamvu yochepa pamwamba, kotero mamolekyu a silicone amakhala ndi mphamvu yochepa pamwamba komanso mphamvu yochepa pamwamba.

Chowonjezera cha polysiloxane chomwe chimagwiritsidwa ntchito kwambiri ndi polydimethylsiloxane, chomwe chimadziwikanso kuti mafuta a methyl silicone. Kugwiritsa ntchito kwake kwakukulu ndi ngati defoamer. Mitundu yolemera pang'ono ya mamolekyulu ndi yothandiza kwambiri pakukweza mulingo, koma chifukwa cha mavuto akuluakulu ogwirizana, nthawi zambiri imakhala yofooka kapena yolephera kubwezeretsanso. Chifukwa chake, polydimethylsiloxane iyenera kusinthidwa isanagwiritsidwe ntchito bwino komanso mosamala mu zophimba.

Njira zazikulu zosinthira ndi izi: silicone yosinthidwa ya polyether, alkyl ndi silicone ina yosinthidwa ya gulu lina, polyester yosinthidwa silicone, polyacrylate modified silicone, fluorine modified silicone. Pali njira zambiri zosinthira polydimethylsiloxane, koma zonse cholinga chake ndi kukonza kugwirizana kwake ndi zokutira.

Mtundu uwu wa mankhwala oyeretsera nthawi zambiri umakhala ndi zotsatira zoyeretsera komanso zochotsera poizoni. Kugwirizana kwake ndi utoto kuyenera kudziwika kudzera mu mayeso musanagwiritse ntchito.

4. Mfundo zazikulu zogwiritsira ntchito

Sankhani mtundu woyenera: Sankhani chinthu choyenera kulinganiza malinga ndi mtundu ndi zofunikira za utoto. Posankha chinthu cholinganiza, kapangidwe kake ndi makhalidwe ake komanso kugwirizana kwake ndi utoto wokha ziyenera kuganiziridwa; nthawi yomweyo, zinthu zosiyanasiyana zolinganiza kapena zowonjezera zina nthawi zambiri zimagwiritsidwa ntchito pamodzi kuti zigwirizane ndi mavuto osiyanasiyana.

Samalani kuchuluka kwa zinthu zomwe zawonjezeredwa: kuwonjezera kwambiri kungayambitse mavuto monga kuchepa ndi kutsika pamwamba pa zinthu zomwe zaphimbidwa, pomwe kuwonjezera pang'ono sikungakwaniritse zotsatira za kulinganiza. Nthawi zambiri, kuchuluka kwa zinthu zomwe zawonjezeredwa kuyenera kudziwika kutengera kukhuthala ndi zofunikira za kulinganiza kwa zinthuzo, kutsatira malangizo ogwiritsira ntchito reagent, ndikuphatikiza zotsatira zenizeni za mayeso.

Njira Yophikira: Kagwiridwe ka ntchito kophikira kumakhudzidwa ndi njira yophikira. Mukagwiritsa ntchito choyezera, mungagwiritse ntchito kutsuka, kupukuta kapena kupopera kuti mupereke gawo lonse la choyezera.

Kusakaniza: Mukagwiritsa ntchito choyezera, utoto uyenera kusakanikirana mokwanira kuti choyezera chifalikire mofanana mu utoto. Nthawi yosakaniza iyenera kudziwika malinga ndi makhalidwe a choyezera, nthawi zambiri osapitirira mphindi 10.

Nanjing Reborn New Materials imapereka zinthu zosiyanasiyanazothandizira kulinganizakuphatikizapo za Organo Silicone ndi zosakhala za silicon zophikira. Zofananira ndi BYK series.