Haanta Kaydka ee PTFE ee safan ee -butyrolactone

RANA's PTFE ee safan - haanta kaydinta butyrolactone waxay isticmaashaa tignoolajiyada dahaarka PTFE, oo loo habeeyay sifooyinka dareeraha organic polar ee -butyrolactone (GBL). GBL aad bay u nadiifsan tahay waxayna bararin kartaa balaastikada qaarkood. Qalabka kaydinta caadiga ah wuxuu si fudud u horseedi karaa faddarayn dhexdhexaad ah taasoo ay ugu wacan tahay dheecaanka walxaha ama nuugista biyaha. Si kastaba ha ahaatee, iska caabinta dareeraha iyo hygroscopicity hooseeya ee PTFE ayaa si buuxda uga hortagaya arrimahan, hubinta nadiifinta iyo xasilloonida waxqabadka GBL. Darbiga gudaha ee taangiga ayaa si gaar ah loogu daaweeyaa si loogu daro dusha siman ee PTFE, hoos u dhigista adhesion iyo haraaga GBL, sidaas darteed hagaajinta isticmaalka walxaha.

Haanta kaydintani waxay ku habboon tahay isku-darka dawooyinka, sunta cayayaanka, iyo udgoonka, gaar ahaan hababka wax-soo-saarka halkaasoo GBL loo isticmaalo dareere ahaan ama dhexdhexaad ah. Naqshadeeda xiran waxay si wax ku ool ah u yaraynaysaa uumiga lumitaanka GBL (oo leh barta karkarinta ee ku saabsan 204 digrii, waxay ku sii socotaa heerkulka qolka), taas oo hoos u dhigaysa qiimaha kaydinta. Intaa waxaa dheer, taangiga ayaa leh heerkul ballaaran oo heerkul ah (-100 digrii ilaa 260 digrii), taas oo u oggolaanaysa inay buuxiso shuruudaha heerkulka loogu talagalay kaydinta GBL marxaladaha kala duwan ee habka wax soo saarka, hubinta wax soo saarka joogtada ah.

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