Ukomisa okwenziwe nge-infrared kungabiza kakhuluThuthukisa ukusebenza kwe-twin-screw extruder ngoba kunciphisa ukucekelwa phansi kwenani le-IV futhi kuthuthukise kakhulu ukuqina kwalo lonke inqubo.
Okokuqala, i-pet regred izothuthuka futhi yomiswe cishe imizuzu eyi-15-20 ngaphakathi kwe-IRD. Le nqubo ye-crystallization nenqubo yokomisa itholakala ngenqubo eqondile yokushisa isebenzisa imisebe ye-infrared ukufezekisa izinga lokushisa elingu-170 ° C. Uma kuqhathaniswa nezinhlelo ezishisayo ezishisayo, okusheshayo okusheshayo kanye nokufakwa kwamandla kwamandla kunikela ngebhalansi ephelele yokushintshana kwaphakade kwamanani aguquguqukayo wokufaka okuguqukayo - Izinhlelo zokulawula imisebe ezifuywayo zingaphendula ekushintsheni kwezimo zenqubo ngemizuzwana. Ngale ndlela, inani elisebangeni lama-5,000 kuya kwayi-8,000 ppm ngaphakathi kwe-IRD lincishiswa ngokufana nokuqukethwe komswakama okusele cishe kwe-150-200 ppm.
Njengomphumela wesibili wenqubo ye-crystallization ku-IRD, ubukhulu bezinqwaba zezinto ezichotshoziwe bakhuphuka, ikakhulukazi ekukhanyeni kwesisindo okukhanyayo. Kulesi simo:I-IRD ingakhuphula ubuningi obuningi ngo-10% kuya ku-20%, okungabonakala umehluko omncane kakhulu, kepha kungahle kube nomehluko omncane kakhulu, kepha kungathuthukisa kakhulu ukusebenza kokuphakelayo ku-extred inlet - yize ijubane le-extruder lihlala lifana, lingathuthukisa kakhulu ukusebenza kokugcwalisa isikulufa.
Njengenye indlela yokulinganisa izinga lokushisa okuphezulu nezinhlelo zokwakha, uhlelo lwe-IRD lungahlelwa futhi njengokomisa okusheshayo okusebenza kahle nakumazinga okushisa angaphansi kuka-120 ° C. Kulokhu, okuqukethwe komswakama okutholwe kuzonqunyelwa ku- "kuphela" cishe ama-2 300 ppm, kepha ngale ndlela kungagcinwa ngokuthembekile, ikakhulukazi ngaphakathi kwebanga lamagugu achazwe ngumenzi we-extruder. Enye into ebalulekile ukugwema ukuguquguquka okuphezulu nokunaphakade ngenani, ngokuncishiswa kokuqukethwe komswakama okufika ku-0.6% okuzokwehlisa kakhulu iparamitha ye-IV ezintweni ezibunjiweyo zepulasitiki. Isikhathi sokuhlala endaweni eyomile singancishiswa sibe yimizuzu engu-8.5 futhi ukusetshenziswa kwamandla kungaphansi kwama-80 w / kg / h
Isikhathi sePosi: Feb-24-2022