Inkqubo yokuxuba i-extrusion yindlela yodwa yezinto zepolymer, ngakumbi iiplastiki, ukusuka kwiimveliso ukuya kwi-industrialization.Izixhobo zale mihla zepolymer ziphuhlisa zibhekisa kwizixhobo zolwakhiwo lwepolymer ezikumgangatho ophezulu, izinto ezintsha ezisebenzayo zepolymer kunye nezixhobo zepolymer ngokubanzi ezinexabiso eliphantsi kunye nokusebenza okuphezulu.
Inkqubo yokuxuba i-extrusion yindlela yodwa yezinto zepolymer, ngakumbi iiplastiki, ukusuka kwiimveliso ukuya kwi-industrialization.Yangokuizixhobo zepolymerbaphuhlisela izinto zolwakhiwo lwepolymer ezisebenza kakhulu, izinto ezintsha ezisebenzayo zepolymer kunye nemathiriyeli yepolymer ngokubanzi enexabiso eliphantsi kunye nokusebenza okuphezulu.Ukusebenza okuphezulu kwezixhobo zepolymer zesakhiwo zibonakaliswa ngamandla athile aphezulu, ukuxhathisa okugqwesileyo kokuhlwa, ukuxhathisa i-abrasion kunye nokulungiswa okulula, ezibaluleke kakhulu kuphuhliso loqoqosho lwesizwe kunye nokhuseleko lwesizwe.Ngenxa yohlobo lwayo olukhethekileyo olusebenzayo kunye nolukhethekileyo, izinto ezintsha ezisebenzayo zepolymer zisetyenziswe ngokubanzi kwiindawo zoshishino ezifana nokukhuselwa kwendalo yendalo, ukusetyenziswa kolwazi, izixhobo ze-biomedical, i-membrane yokwahlula izinto, ukuguqulwa kwamandla kunye nokugcinwa kweteknoloji yokugcina amandla.Ukusebenza okuphezulu kwezixhobo zepolymer jikelele kunye neendleko eziphantsi zeeplastiki zobunjineli ziseyingqwalasela yophando lwangoku kunye nophuhliso lwezixhobo zepolymer kunye nomlinganiselo obalulekileyo wokwandisa umda wesicelo seeplastiki eziqhelekileyo kunye neeplastiki zobunjineli.
Ukongeza kwezinye iipropathi zokusetyenzwa kwezixhobo zepolymer zemveli, izinto ezintsha zepolymer zinomehluko omkhulu kwizakhiwo zomzimba kunye neekhemikhali.Ibonakale ngophuhliso lwezixhobo ezitsha zepolymeric, amasimi esicelo sokwandisa, ukuya kwi-polymer ephezulu yokuxuba imathiriyeli ye-polymer nayo ibekwe phambili ngesicelo esiphezulu, itekhnoloji yokuxuba yemveli kunye nezixhobo azinayo imathiriyeli entsha ephezulu yepolymer ukuhlangabezana nemfuno yokuxuba, ngoko ke, ukuphuhliswa kohlobo olutsha lokuxuba iteknoloji ye-extrusion kunye nezixhobo, ukuhlangabezana neemfuno zezinto ezintsha zepolymer ukuya kumashishini, izixhobo zokuxuba i-BNR;kwangaxeshanye, ikwangumkhwa ongenakuthintelwa wophuhliso lwezixhobo zokulungisa iipolymer namhlanje.
- 1.Ukusetyenziswa kwesikrufu samaweleukuxuba extrusioniteknoloji
Itekhnoloji yokuxuba kunye nokuxuba itekhnoloji ye-extrusion kukudibanisa izinto ezikhoyo zepolymer kunye neentlobo ngeentlobo zeepolymers okanye ukongeza ezinye izinto zokwandisa ukudibanisa kwezixhobo ezahlukeneyo, ukuze kuphuculwe kakhulu iipropathi zezinto ezibonakalayo, okanye ukunika imathiriyeli ekrwada kunye neepropathi ezintsha, ukongeza iintlobo ezintsha. usapho lwepolymer.Kulo lonke ishishini leplastiki, malunga ne-60% yeeplastiki kufuneka zixutywe kwaye zilungiswe ukuvelisa izinto ezintsha.Uninzi lwezi nkqubo zokucubungula eziyinkimbinkimbi zigqitywe kwizixhobo zokuxuba ezimelwe yi-twin screw extruder.Ukusebenzisa umkhombandlela ofanayo isikrufu samawele ukuxuba i-extrusion inezi zinzuzo zilandelayo:
(1) ukuxuba okugqwesileyo kunye nokusebenza kweplastiki, enokuqinisekisa ngokupheleleyo ukufana kokusasazwa kunye nokusebenza okufanayo kwezixhobo ezahlukeneyo emva kokuxuba, kwaye ilungele imisebenzi enzima njengokuzaliswa, ukudibanisa, ukuqinisa i-fiber yeglasi, i-extrusion esebenzayo kunye nokususwa okuguquguqukayo kwee-resin ezahlukeneyo kunye iiplastiki.
(2) i-cylinder kunye ne-screw inokuqonda "ibhloko yokwakha" indibaniselwano, ukuze kuphunyezwe iinjongo ezininzi, imisebenzi emininzi.
(3) i-screw meshing, isiphumo sokuzicoca silungile;Izinto eziphathekayo zifezekisa umphumo ophezulu wokuhlaziya umgangatho kunye nokusebenza kakuhle kokukhupha, okunokuphelisa igesi okanye i-monomer eyenziwa kwinkqubo yokuxuba kunye neplastiki.
(4) isantya esiphezulu Screw, umthamo omkhulu wemveliso, ukusetyenziswa kwamandla aphantsi kwiyunithi nganye yemveliso, isiphumo esicacileyo sokugcina amandla.
Ngokusekwe kwezi zibonelelo zingentla, itekhnoloji yokudibanisa i-twin-screw yokuxuba itekhnoloji inenzuzo engenakubuyiselwa kwisixhobo sokulungisa imathiriyeli yepolymer kwaye ikwindawo ephambili kwimveliso yokuguqulwa kwezinto zepolymer.
Okwangoku, uhlobo olutsha lwe-twin-screw compounding kunye nosetyenziso lwamva nje lwetekhnoloji ye-extrusion lubonakaliswa ikakhulu kule miba ilandelayo: ukulungiswa kokuguqulwa kwezinto ze-nanometer yinto ephezulu ye-polymer eqinile yohlobo lwe-Gao Ren lwexabiso eliphantsi, izinto eziphezulu ze-polymer alloy, ukukhusela i-electromagnetic. izinto zepolymeric, imathiriyeli yenoveli yepolymer yeeplastiki ezinokonakala, ukupakishwa kwe-elektroniki, i-masterbatch entsha kunye ne-masterbatch eyahlukeneyo esebenzayo, njl. njl., inokusetyenziselwa izinto ezintsha ezidibeneyo (ezifana neplasitiki yeplasitiki) ukuveliswa kunye nokulungiswa kwezinto ezintsha, ukongeza, Ikwasetyenziselwa ukufakwa kwepolymer, i-polycondensation ye-extrusion esebenzayo.Amashishini abandakanyekayo abandakanya izixhobo zasekhaya, iimoto, unxibelelwano, iteknoloji yombane, ukhuselo lwelizwe, i-aerospace, ukhuseleko lokusingqongileyo, ishishini lemichiza, izinto zokwakha, amandla ombane, njl.
- 2.Uphuhliso lwetekhnoloji entsha ye-polymer ye-extrusion ene-twin screw
Okwangoku, isikhokelo sophuhliso lwezixhobo ezitsha zepolymer, eziqulunqwe ikakhulu ngamananomaterials, iiplastiki ezonakaliswayo, iasphalt eguquliweyo kunye neplasitiki edityanisiweyo, amaziko ophuhliso lwezi zixhobo, kunye nethekhnoloji ye-twin-screw extrusion ehambelana necala elifanayo. undoqo wokuphumeza ushishino.Xa kuthelekiswa nezinto eziqhelekileyo ze-polyolefin, ezi zixhobo zinomehluko omkhulu ekubunjweni kwenkqubo yezinto, ukwakheka kweemolekyuli kunye neempawu ze-rheological.
(1).I-Nanomatadium iba luhlobo olutsha lwezixhobo eziphuhliswe ngamazwe ahlukeneyo ehlabathini.Ukususela ekulungiseleleni i-nanometer masterbatch ukuya kwimveliso ye-nanometer modified plastics, i-twin-screw extruder idlala indima engenakuphinda ithathelwe indawo kwi-industrialization yeeplastiki ze-nanometer.Okokuqala, ngenxa yokusabalalisa ubungakanani be-nanomaterials, i-extrusion yokuxuba kunye nemiphumo yokusabalalisa kufuneka ibe phezulu.Okwesibini, ukulungiswa kwe-nanometer masterbatch yeempawu zokunyibilika kwe-inviscid, ubunzima obuphantsi, iqulethe isixa esikhulu segesi ephumayo kunye nezongezelelo kwinkqubo yokususa iimveliso zokubola, kunye ne-polymer yendabuko phantsi kwemeko eyahlukeneyo yeempawu zeplastikhi ezifana nokuqina okuphezulu, ukupholisa kunye inkqubo imveliso egqityiweyo yahlukile kwinkqubo eqhelekileyo polyolefin masterbatch.Ukusuka ekuxubeni kunye nokwenza iplastiki ye-extruder ukuya ekupholiseni kunye ne-granulation, uphuhliso oluninzi lwezinto ezintsha luyafuneka.Ke ngoko, indlela yokupholisa ngokubanzi yepolymer etyhidiweyo ayinakwamkelwa.Imveliso yokugqibela iveliswa ngokwamkela imowudi yokutyisa evaliweyo kunye nengqokelela yomgubo, ukwamkela into entsha yerotor eshinyeneyo ephezulu kwi-screw, ukuseta uhlobo lwe-buffer uhlobo lokukhupha kwi-cylinder, kunye nokwamkela indlela yokuhambisa ibhanti kunye nokupholisa, ukutyumza kwangaphambili. kunye nokutyumza kwi-strip yezinto ezipholileyo kunye nokutyumza.
(2) .Zininzi isitatshi ekuphuhliseni isitatshi esizaliswe ziiplastiki ezinokonakala, iiplastiki ezonakaliswa kabini kunye neeplastiki ze-thermoplastic ezipheleleyo.Ukongeza kwiplastiki kunye nokuxuba, ukukhutshwa kwamanzi kunye nokusabalalisa ixesha lokuhlala kwinkqubo ye-extrusion ibe yingxaki ekufuneka isonjululwe xa ixutywa kunye ne-granulating.Ngoko ke, ngokwezixhobo ezithile, umlinganiselo ofanelekileyo wokubamba i-screw ubude be-diameter ratio, indawo yokukhupha kunye nobuninzi, isakhiwo se-screw kunye nokuhlelwa, imo yokongeza i-additive and point point kufuneka kukhethwe ukuvavanya nokumisela ukucwangciswa;Kwangaxeshanye, itekhnoloji yokusebenza kunye netekhnoloji ibuye ibe yingxaki ephambili yokuwohloka kwe-plastic twin-screw extrusion.Ubuchwephesha obuphambili obungasentla bunokuthi busekelwe kumava akhoyo aphumeleleyo, adityaniswe novavanyo lwenkqubo ye-extrusion kunye nohlalutyo lweziphumo, ekugqibeleni unqume ukucwangciswa kwezixhobo zenkqubo ye-extrusion.
(3) .I-asphalt ehlaziyiweyo ibe yindlela entsha yokuguqulwa kwezinto zepolymer.Ukugxininisa kwisicelo sayo kulwakhiwo lohola wendlela, ukwakhiwa ngokutsha kwesikhululo seenqwelomoya kunye neeprojekthi zokwandiswa, ukuphucula ukumelana nobushushu kunye nepropathi enobushushu obuphantsi yeyona nto iphambili yokuphucula ixabiso lesicelo sayo.Ngenxa yokusabalalisa ubunzima be-molecular kunye nesakhiwo se-macromolecule, ukuguqulwa kwe-asphalt akuzange kuphuculwe kakhulu.I-asphalt elungisiweyo ikhetheke kakhulu, zombini ziyinxalenye yeempawu zokudibanisa irabha yeplastiki, kodwa ikwanazo nomxholo wemveliso emva kokulungiswa, ukuthuthwa kwe-twin screw extruder, ukuxuba izinto zophuhliso, ezifana ne-extrusion granulation zibekwe phambili iimfuno ezintsha. , zidinga ukutsha ngokutsha ukuphuhlisa uhlobo olutsha lwesakhiwo kunye noqwalaselo lwesixhobo sokujiya, i-console, i-screw ekhethiweyo ephindwe kabini kuzo zonke iintlobo zeeparamitha zovavanyo, ezifana nobude be-screw ukuya kwi-diameter ratio, inani kunye nendawo yecandelo lokukhupha, izinga lokucheba, ifom ekhuphayo kunye nesakhiwo. , njl.
(4) .Ngokuphathelele kwisayensi yezinto eziphathekayo, i-WPC yinto entsha enamandla amakhulu.Kuxelwe ukuba imidibaniso yefiber yezityalo isetyenziswe ngokubanzi kwishishini lemoto, ishishini lokwakha, ishishini lezothutho, ishishini leenqwelomoya njalo njalo ngenxa yeempawu zabo eziphezulu zomatshini, ubunzima obuthile, amandla athile, ukufunxa isandi kunye nokonakala kwezinto eziphilayo.Kwifiber yomthi, umgubo womthi oxutywe ne-resin matrix, umxube weendlela ezahlukeneyo zomthi wefayibha kwizinto ezidityanisiweyo ezifunyenwe ngokusasaza ukufana kokwahlukana kukhulu kakhulu, ukuqonda ushishino lweplasitiki yeplasitiki ehlanganisiweyo le mveliso intsha isitshixo Inkqubo ye-extrusion kunye nefom yesakhiwo esikhethekileyo se-extruder, indawo yokuvuselela itekhnoloji ilele kwiindlela zokutshaja ezicandekileyo, uhlobo olukhethekileyo lwesakhiwo, i-TME kunye ne-ZME element, inkqubo yokuhambisa igiya ye-torque ephezulu, ubude be-screw ukuya kwi-diameter ratio kunye ne-D / Di = 1.55 ivolumu yasimahla. , indlela yenyathelo elinye lokuvelisa i-twin-screw extrusion.
Ixesha lokuposa: Aug-22-2019