Chemical solvents zvinhu zvinonyungudutsa solute, zvichiita kuti pave nemushonga. Ivo vanoita basa rakakosha mumaindasitiri akasiyana, anosanganisira emishonga, pendi, machira, uye zvigadzirwa zvekuchenesa. Iko kuita kwakasiyana-siyana kwemakemikari zvinonyungudutsa kunoita kuti zvive zvakakosha mune zvese maindasitiri uye marabhoritari marongero.
Rimwe remabasa ekutanga emakemikari zvinonyungudutsa nderekufambisa kuita kwemakemikari. Muindasitiri yemishonga, semuenzaniso, zvinonyungudutsa zvinoshandiswa kuburitsa zvinhu zvinoshanda kubva kune zvakabikwa, kuve nechokwadi chekuti mishonga inoshanda uye yakachengeteka kunwiwa. Zvinonyungudutsa zvakajairika muchikamu ichi zvinosanganisira ethanol, methanol, uye acetone, imwe neimwe yakasarudzwa nekuda kwekugona kwayo kunyungudutsa makomisheni chaiwo.
Muindasitiri yependi uye yekuputira, makemikari anonyungudutsa akakosha kuti uwane inodiwa kuenderana uye mashandisiro ekushandisa. Vanobatsira mukupeta pendi, zvichibvumira kushandiswa kwakapfava uye nekukasira kuoma nguva. Zvinyungudutsa zvakaita setoluene uye xylene zvinogaro shandiswa, asi zvazvinoita organic compounds (VOCs) zvinogona kuunza njodzi kwezvakatipoteredza uye hutano. Nekuda kweizvozvo, kune maitiro ari kukura akananga kukudziridzwa kwe low-VOC uye mvura-based solvents.
Uyezve, zvinonyungudutsa makemikari zvakakosha mukuchenesa zvigadzirwa, uko zvinobatsira kunyungudutsa girizi, oiri, uye zvimwe zvinosvibisa. Solvents senge isopropyl doro uye ethyl acetate anowanzo kuwanikwa mudzimba uye maindasitiri ekuchenesa, zvichiita kuti zvishande mukuchengetedza hutsanana uye kuchena.
Zvisinei, kushandiswa kwemakemikari zvinonyungudutsa hakusi pasina matambudziko. Zvinyungudutsa zvechinyakare zvakawanda zvine ngozi, zvinotungamirira kumitemo yakasimba maererano nekushandiswa nekuraswa kwazvo. Izvi zvakurudzira vaongorori nevagadziri kutsvaga dzimwe nzira dzakachengeteka, senge bio-based solvents inotorwa kubva kune zvinogonekazve.
Mukupedzisa, makemikari zvinonyungudutsa zvinhu zvakakosha mumaindasitiri akasiyana-siyana, kufambisa maitiro anotangira kubva pakugadzirwa kwezvinodhaka kusvika pakucheneswa kwepamusoro. Sezvo kudiwa kwesarudzo dzakachengeteka uye dzakasimba dzichikura, remangwana remakemikari zvinonyungudutsa richaona hunyanzvi hutsva hwakanangana nekuderedza kukanganiswa kwezvakatipoteredza uchichengetedza kushanda.
Nguva yekutumira: Jan-07-2025