Ukuguquguquka kwezilinganiso ze-monomer-to-polymer ngesikhathi senqubo yokukhiqizwa kwe-methyl methacrylate kuthinta ngqo ukulawulwa kwesisindo sama-molecule, ukucaca kokukhanya, kanye nokusebenza komshini. Impendulo yenqubo esheshayo ivumela ukunqunywa okunembile esinyathelweni ngasinye senqubo yokukhiqizwa kwe-methyl methacrylate, kunciphisa ukwehluleka okubizayo kwe-batch. Ukulinganisa okuqhubekayo okuqondile ku-methacrylate process flow diagram kunikeza opharetha ukubonakala okuqhubekayo, kusekela i-stable radical polymerization, ikakhulukazi ngesikhathi sokushintsha kwe-exotherm ephezulu kanye ne-viscosity.
Ukuqapha okunembile kunciphisa imfucuza yezinto ezingavuthiwe ngo-10%–12%, ngokusho kwezilingo zakamuva zemboni, okusekela ngqo ukwenziwa ngcono kwesivuno. Idatha yobuningi besikhathi sangempela ikhulisa ukusebenza kahle kwezinsiza futhi isiza ukugwema izikhathi zokungasebenzi ezingahleliwe ezihlotshaniswa nokuphambuka okungatholakali noma ukwehluleka kwe-polymerization.
Ukukhiqizwa Kwamashidi E-Acrylic e-MMA
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Isingeniso
Ku-i-methyl methacrylateInqubo yokukhiqiza, ukuqapha okunembile kokuhlanzeka kwe-monomer kanye nokusabela kwayo kubalulekile ukuze kube ne-polymerization eqhubekayo. Izindlela ze-polymerization ngobuningi ekukhiqizeni i-acrylic zidinga ukulawulwa okuqinile kokulinganisa kwe-radical initiator kanye nokususwa kokushisa.
Izinqubo zokwenziwa kwe-polymerization yeshidi le-Acrylic zincike ekufundweni kwesikhathi sangempela kokulinganisa, ukuxuba, kanye nokuphonsa ukuze kuvinjelwe amaphutha nezinto ezingacacisiwe. Ukulawulwa kokuqina okunembile kuveza ukucaca okuphezulu kanye nokufana ekukhiqizweni kweshidi le-acrylic.
Ukubuka Konke Kwenqubo Yezimboni Eyinhloko
Inqubo yokukhiqiza i-methyl methacrylate isebenzisa i-catalytic methylation noma i-oxidative esterification eqondile ukudala i-MMA monomer. I-Catalytic methylation ngokuvamile isebenzisa ama-mixed Mg/Ga oxide catalysts, ifinyelela ukukhetha okuphezulu kanye nesivuno, ngenkathi inciphisa ukwakheka komkhiqizo olandelanayo. I-Direct methylation, eyenziwe ku-Aspen Plus, ivumela ukuvuselelwa kabusha okuphumelelayo, okuvumela ukuhlanzeka kwe-MMA kufike ku-99.9% ngokusetshenziswa kwamandla okuncishisiwe.
Umdwebo wokugeleza kwenqubo ye-methyl methacrylate uhlanganisa ukufakwa kwezinto zokusetshenziswa, izinyathelo zokuhlanza i-MMA, kanye nezigaba zokuzinzisa. I-MMA eqinisiwe ibe isilethwa kumayunithi e-bulk polymerization ngokusebenzisa amapayipi avaliwe, okunciphisa ukungcola nokulahleka.
Inqubo yokwenza i-methyl methacrylate bulk polymerization ihilela abaqalisi be-radical, ukuphathwa kokushisa okunembile, kanye nokusabalala kwe-polymer chain okuqhubekayo. Ukulawulwa kokushisa kwe-reactor kuqinisekisa ukuguqulwa okufanayo futhi kuvimbela ukusabela kwe-exothermic okungahambi kahle.
Ukulawulwa kwenqubo yokukhiqiza amashidi e-acrylic kuncike ekulinganisweni okuqondile, ukuxubana okushefa kakhulu, kanye nokusatshalaliswa okulinganisiwe. Amasu okucubungula amashidi e-acrylic njengokupholisa okulawulwayo kanye nokuphathwa kwamabhamuza abalulekile ukuze kube nokucaca okuqhubekayo kanye nokulingana. Isinyathelo ngasinye sidinga ukuqapha okuqinile okuqondile ukuze kube nekhwalithi yomkhiqizo ezinzile.
Ukwenziwa kwe-polymer ye-methyl methacrylate ukuze kwakheke ipulasitiki ye-PMMA
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Ubuningi besikhathi sangempela Izinselele Zokulinganisa inAi-crylicSi-heetMukukhiqiza
Ukulinganiswa kobuningi kanye nokuhlushwa okuqondile enkambisweni yokukhiqiza ishidi le-acrylic kubhekene nezinselelo eziqhubekayo ezivela ekushintsheni kwenqubo kanye nokuguquguquka kwezinto. Amazinga okushisa aphezulu ezindaweni ezisabelayo ze-exothermic asheshisa ukungcoliswa kwenzwa, okubangela ukulahleka kokukhukhuleka kanye nokulinganiswa. Inqubo ye-methyl methacrylate bulk polymerization iveza ukuguquguquka okusheshayo kwe-viscosity, okuphazamisa ukuzinza kwemitha yobuningi futhi kudinga ukulinganiswa kabusha njalo.
Izinhlayiya ze-resin ezilengayo kanye nokuhlukaniswa kwesigaba ngesikhathi senqubo ye-polymerization yeshidi le-acrylic kunciphisa ngqo ukunemba kwenzwa eqondile, njengoba impendulo yethuluzi ihlushwa ukuhlakazeka kanye nokugeleza okungalingani. Izindawo ezingaphakathi kwenqubo zingase ziqukathe okuqukethwe kwebhamuza okuguquguqukayo noma ukwakheka kwe-microgel, ukuhlanekezela ubuningi kanye nedatha yokuhlushwa ngenxa yokungafani kwesikhashana.
Amamitha angaphakathi kumele aqoqe ngokwethembeka izilinganiso ezinembile futhi amelane nemijikelezo ephelele yomdwebo wokugeleza kwenqubo ye-methyl methacrylate, okuhlanganisa ukuhlanzwa kwe-MMA, ukuzinza, kanye nendlela yokwenza i-bulk polymerization ekukhiqizweni kwe-acrylic. Izinto zokwenziwa kanye nemiklamo ethuthukisiwe yenzwa kuyadingeka ukuze kuncishiswe isikhathi sokungasebenzi futhi kuthuthukiswe ukunemba kokulinganisa kuzo zonke izinyathelo zokukhiqiza amashidi e-acrylic.
Izinzuzo ze-Lonnmeter Inline DensityAmamitha
Ubuningi be-Lonnmeter inline kanyeamamitha okuhlushwaukuletha izilinganiso eziqondile, ezingangenisi ukungcola kuyo yonke isigaba senqubo yokukhiqizwa kweshidi le-acrylic, kufaka phakathi inqubo ye-methyl methacrylate bulk polymerization. Izikhathi zokuphendula kwenzwa ezingaphansi kwemizuzwana engu-0.5 zivumela ukulawulwa kwenqubo eqondile, zisekela ukukala okunembile kanye nokuphonswa ngesikhathi senqubo ye-acrylic sheet polymerization.
Umklamo wethuluzi eliqinile umelana nokukhukhuleka kwenzwa okubangelwa amazinga okushisa aphezulu, izinhlayiya ze-resin ezilengayo, okuqukethwe kwama-bubble aguquguqukayo, kanye nokwakheka kwe-microgel. Amadivayisi e-Lonnmeter agcina i-±0.003ukunemba kwe-g/cm³ ngokusebenzisa izindawo zokushisa ezishintshashintshayo kanye nezigaba ezingafani.
Nciphisa ama-batches angekho ku-spec kanye nokusetshenziswa kwemithombo. Cacisa amathuluzi okuhlanganiswa ngqo ku-methacrylate process flow diagram kanye nendlela ye-bulk polymerization ekukhiqizweni kwe-acrylic. Xhumana nonjiniyela wokuthengisa we-Lonnmeter njengamanje.
Isikhathi sokuthunyelwe: Jan-26-2026
