Kodi ndi zinthu ziti zomwe zimakhudza kuyera kwa hydroxypropyl methyl cellulose?

Mu matope opangira nyumba ndi ufa wa putty, kukula kwa hydroxypropyl methylcellulose chiyero kumakhudza mwachindunji ubwino wa zomangamanga zomangamanga, ndiye ndi zinthu ziti zomwe zimakhudza chiyero cha hydroxypropyl methylcellulose? Kukuthandizani kuyankha funso ili lero.

Popanga hydroxypropyl methylcellulose, mpweya wotsalira mu ketulo umayambitsa kuwonongeka kwa hydroxypropyl methylcellulose ndikuchepetsa kulemera kwa maselo. Komabe, mpweya wotsalirawo ndi wochepa, choncho sikovuta kulumikizanso mamolekyu osweka. Mlingo waukulu wa machulukitsidwe ndi hydroxypropyl zili ndi ubale wabwino, mafakitale ena amangofuna kuchepetsa mtengo ndi mtengo, safuna kuwongolera zomwe zili mu hydroxypropyl, kotero kuti mtunduwo sungathe kufika pamlingo wazinthu zakunja zofanana.

Mlingo wosungira madzi wa hydroxypropyl methylcellulose ndi hydroxypropyl umakhalanso ndi ubale wabwino, ndipo pazochitika zonse, hydroxypropyl methylcellulose imatsimikiziranso kuchuluka kwa madzi a hydroxypropyl methylcellulose. Zotsatira za alkalization, chiŵerengero cha chloromethane ndi propylene oxide, kuchuluka kwa alkali ndi chiŵerengero cha madzi ku thonje woyengedwa zonse zimatsimikizira ntchito ya mankhwala.

Ubwino wa zipangizo, alkalization zotsatira, ndondomeko chiŵerengero chiŵerengero, zosungunulira chiŵerengero ndi neutralization zotsatira, onse kudziwa khalidwe la hydroxypropyl methyl cellulose, ena hydroxypropyl methyl cellulose anapanga kupasuka pambuyo ngati mkaka ndi mitambo kwambiri, ena milky woyera, ena achikasu, ena. zomveka komanso zowonekera. Ngati mukufuna kuthetsa, sinthani kuchokera pamwambazi. Nthawi zina asidi acetic angakhudzire kwambiri transmittance, asidi acetic bwino ntchito pambuyo dilution, zotsatira yaikulu kapena anachita yogwira mtima ndi yunifolomu, dongosolo chiŵerengero ndi khola (zina zinthu chinyezi, zili si khola, monga kuchira zosungunulira), kwenikweni, zinthu zambiri zimakhudzidwa. Ndi kukhazikika kwa zida ndi ntchito za ogwira ntchito ophunzitsidwa bwino, zinthu zopangidwa ziyenera kukhala zokhazikika kwambiri. Kupatsirana sikuyenera kupitirira ± 2%, ndipo kufanana kwa gulu lolowa m'malo kuyenera kuyendetsedwa bwino. Kuphatikiza kofananako, kutumizirana kuyenera kukhala kwabwino.

Chifukwa chake, mtundu wabwino wazinthu umatsimikiziridwa ndi zopangira, ukadaulo wopanga, ndi zina. Kuwongolera kokhazikika kokha kuchokera kumapeto mpaka kumapeto kungathe kupanga zinthu zokhala ndi khalidwe lokhazikika.