Izinto zentambo nezekhebula ze-TPE ne-TPU Ukuqhathanisa nokusebenza kanye nokusetshenziswa
Intuthu ephansi | Ayina-halogen | I-retarder yomlilo
Ama-elastomer e-thermoplastic manje asethandwa ngabaningi Ucingo Nekhebula amafektri ngenxa yezinzuzo zawo zokuguquguquka okuphezulu, ukuguquguquka, kanye nomuzwa obushelelezi. Njengoba izinto ze-PVC zinqunyelwe ezikhathini eziningi, ukuguquguquka kwe-thermoplastic kuye kwakhuthazwa kakhulu.
Eminyakeni eyi-15 edlule, ukuthuthukiswa okwengeziwe kwama-elastomer e-thermoplastic e-China. Ama-elastomer e-thermoplastic e-thermoplastic e-retardant e-flame, ikakhulukazi i-TPE ne-TPU, asetshenziswe kabanzi emigqeni yedatha yomkhiqizo wabathengi, emigqeni emisha yokushaja amandla kanye nemigqa evikelwe, kanye nemigqa ye-high-voltage esemotweni.
Kodwa-ke, kusenezinkinga eziningi eziqondile ocwaningweni mayelana nokuvimbela ilangabi kwama-elastomer e-thermoplastic. Isibonelo, abangani bavame ukubuza ukuthi yini umehluko phakathi kwe-TPE ne-TPU. Lesi sihloko sixoxa kafushane ngezici, ukuqhathaniswa kokusebenza kanye nokusetshenziswa kwezinto ze-thermoplastic elastomer ze-TPE ne-TPU zocingo kanye nekhebula.
01 Ukusetshenziswa kwe-TPE emkhakheni wezintambo nekhebula
I-TPE ibhekisela ku-elastomer ye-thermoplastic ene-SEBS njenge-matrix resin. I-SEBS iyi-block copolymer eyakhiwe yi-styrene (S)-ethylene (E)/butene (B)-styrene (S).
Izibopho eziphindwe kabili ku-SEBS, okungukuthi, i-SBS, zigcwele i-hydrogenation, ngakho-ke i-SEBS inokumelana okuhle nesimo sezulu, ukumelana nokushisa, ukumelana nokuguquguquka kokucindezelwa kanye nezakhiwo ezinhle kakhulu zemishini.
(1) Imikhiqizo ye-SEBS inokusebenza okuhle kakhulu kokuvikela ugesi, ayinobuthi, imelana nesimo sezulu futhi iyaguga, iyakwazi ukuguquguquka kahle futhi inamandla aphezulu, futhi inezinga lokushisa elibanzi. Ziyizinto ezinhle kakhulu zokwenza izembozo zangaphandle kanye namatheyiphu okuvikela ugesi ezintambo nezintambo. Zisetshenziswa kakhulu kuma-terminals ahlakaniphile eselula kanye nezinto zasekhaya nakwamanye amasimu.
Njengamanje, sekuyinto evamile ukufaka esikhundleni se-PVC emkhakheni wezintambo ezisebenzisa amandla aphansi (njengezintambo zama-headphone, izintambo zokushaja, izintambo ze-USB, izintambo zomsindo/ividiyo, izintambo zekhompyutha, njll.).
(2) Ngenxa yokuthi imikhiqizo ye-elekthronikhi yabathengi inezici zokuvuselelwa okusheshayo kanye nokuphila kwesikhathi esifushane kwesevisi, ngokufika kwesikhathi sokuthuthukiswa kokusetshenziswa, imikhiqizo ehlobene ne-SEBS inendawo enkulu yokuthuthuka kulo mkhakha.
Njengoba izidingo ezikhulayo zokumelana nomlilo wekhebula kanye nokusebenza kokuvikelwa kwemvelo ekhaya nakwamanye amazwe, izinga lokusetshenziswa kwabantu liyaqhubeka nokuthuthuka, ukuthambekela kwemikhiqizo ye-SEBS evimbela ilangabi esebenza kahle kakhulu yokushintsha.Le khebula Izakhiwo ezifana ne-PVC kanye ne-CPE ziya ngokuya zibonakala esikhathini esizayo, futhi amathuba okusetshenziswa kwesikhathi esizayo abanzi. Njengamanje, kunesidingo esikhulu semakethe sokuguqulwa kwe-SEBS flame retardant kanye nentuthuko yokusebenza okuphezulu.
Izinto ze-TPE ezikhethekile: Ngokusetshenziswa nokuthuthukiswa kobuchwepheshe obusha bezinto ze-TPE, izinto ze-TPE ezikhethekile zamanje zifaka phakathi i-TPE eqhubayo, i-TPE engashintshi, izinto zokufaka i-TPE, i-XLTPO exhunywe ngemisebe, i-TPE enamandla okuqina, i-TPE evimbela ilangabi kakhulu, njll.
02 Ukusetshenziswa kwe-TPU emkhakheni wezintambo nekhebula
I-TPU thermoplastic polyurethane elastomer, okuyi-linear block copolymer ekhiqizwa ukusabela kwe-diisocyanate kanye ne-macromolecular polyol, i-chain extender/crosslinker kanye nenani elincane lezithasiselo. Enye ngokuyinhloko iwuhlobo lwe-polyurethane, kanti enye ikakhulukazi uhlobo lwe-polyether.
Ngokuvamile kuyi-polymer yebhulokhi, kanti i-PU etholakala ngokuphendula i-polyol yeketanga elide ene-isocyanate isetshenziswa njengesigaba esithambile, kanti i-PU etholakala ngokuphendula i-diol yeketanga elifushane ene-isocyanate isetshenziswa njengesigaba esiqinile.
Ukusetshenziswa kwama-elastomer e-TPU ezintanjeni nasezintanjeni kutholakala kakhulu kulezi zinsimu ezilandelayo:
·I-wiring harness yezimoto: I-wiring harness yesistimu yokukhiya (i-ABS), ikhebula le-odometer, ikhebula lokuxhumana lezimoto, ikhebula le-sheath elivimbela ilangabi eliyinqwaba yokushaja, njll.;
·Izintambo zokuhlola indawo: izintambo zokuhlola indawo kawoyela\ulwandle\umhlaba, izintambo zokuthola amagagasi okuzamazama komhlaba, njll.;
·Izintambo zikagesi zabathengi: ikhebula le-headphone, (elivimbela ilangabi) Ikhebula Ledatha yokushaja ifoni ephathekayo, ikhebula lomsindo, ikhebula le-USB, ikhebula lezinto zekhompyutha, njll.;
·Izintambo zamandla nezezimboni: izintambo zekhompyutha ze-CNC, izintambo zamandla omoya, izintambo zezimayini, izintambo zamandla kagesi;
·Intambo yokuxhumana ngentambo: intambo ye-fiber optic ene-sheathed wire, i-flame retardant edingekayo;
·Izintambo zemishini yezokwelapha: ikhebula le-electrocardiogram, ikhebula lokuthola umoya-mpilo egazini, ikhebula le-electrode lead, ikhebula le-massager.
03 Ukuqhathaniswa kokusebenza kwezinto ze-TPE kanye ne-TPU zocingo kanye nekhebula
(1) I-TPU inamandla angcono kune-TPE, amandla okudonsa kanye nezinga lokunwebeka: Amandla okudonsa e-TPU aphindwe kabili kuya kathathu kunerabha yemvelo kanye nerabha yokwenziwa, kanti i-TPU inokumelana okuhle kokugoba; ukumelana okuhle nokuguguleka, inani lokuguguleka kwe-Taber lingu-0.35-0.5mg, okuyinto encane kunazo zonke phakathi kwepulasitiki, ngakho-ke inokumelana okuhle nokuphuka kwesikhumba.
(2) Ukuzizwa kwe-TPE ne-TPU kanye nokusebenza okuthambile: I-TPE ingalungisa ubulukhuni kanye nokuguquguquka kusuka ebangeni elibanzi lama-degrees angu-0 kuya ku-99A, kuyilapho ububanzi bobulukhuni be-TPU bungu-60~95A, futhi isalondoloza ukunwebeka lapho ubulukhuni bungaphezu kuka-85A. Lesi yisici amanye ama-elastomer angenaso, ngakho-ke i-TPU inamakhono okusekela umthwalo ophezulu kanye nomphumela omuhle wokumunca nokukhipha; ukuzizwa kwalokhu okubili kuhlukile kakhulu ebangeni elihlukene lobulukhuni, futhi ivumelana nezimo ezahlukene ngokwezidingo; i-TPE inokulahlekelwa okukhulu kokunwebeka ebangeni eliphezulu lobulukhuni.
(3) I-TPU ne-TPU ze-Polyether zinokumelana okuhle kwamanzi, kodwa i-TPU ye-polyester inokumelana okubi kwamanzi; i-TPU inokumelana okungcono kwamafutha kune-TPE.
(4) Ukumelana kwe-UV kwe-polyester TPU kuphansi kakhulu futhi kuthambekele ekubeni phuzi. Ngenxa yokuthi indandatho ye-benzene yesigaba esiqinile se-polyurethane kanye ne-aromatic curing agent kuhlanganiswe ne-carboxylic acid ester, kwenzeka i-oxidation kanye nokuhlelwa kabusha, kwakha isakhiwo se-quinone namaqembu e-chromogenic, ngaleyo ndlela kwakha isibopho esingagcwalisiwe esigabeni se-polymer; ngaphansi kwesenzo semisebe ye-ultraviolet, amandla "ama-free radicals" anikezwa ukusabela kokushintsha kombala, okunikeza amandla anele okubhubhisa izibopho zamakhemikhali zama-polymer amaningi, kubangele ukusabela kwe-oxidation okuzenzakalelayo, futhi kubangele ukuguga nokuwohloka.
Ukusebenza kwe-polyether TPU kokuphuzi kungcono kunokwe-polyester TPU. Kungathuthukisa ikhono lokulwa ne-UV ngemva kokuguqulwa, kuqinisekiswe ukuthi akupheli kungakapheli iminyaka eyi-1 kuya kwemibili. I-anti-UV ye-TPE ngokuvamile ingcono kuneye-TPU, ngakho-ke i-TPE engangeni mbala ingcono kakhulu kuneye-TPU.
Ngamafuphi, i-polyether TPU inezinzuzo zokumelana ne-hydrolysis, ukumelana nesikhunta, ukuqina okuphezulu kanye nokusebenza kahle kwezinga lokushisa eliphansi. Ama-polyester TPU anezinzuzo zamandla aphezulu okudonseka, ukuguquguquka, ukumelana nokuguguleka, ukumelana nesinyibilikisi, ukumelana ne-oxidation kanye nokumelana nezinga lokushisa eliphezulu.
04 Ukucubungula nokwakhiwa kwezinto zezintambo ze-TPE ne-TPU kanye nokuqhathaniswa kwezindleko
Ukuqhathaniswa kokucubungula nokwakha izinto ze-TPE kanye ne-TPU ngocingo kanye nekhebula:
(1) I-TPU kulula kakhulu ukuyimunca amanzi. Idinga ukomiswa ku-100℃*3~4H ngaphambi kokucutshungulwa, kuyilapho i-TPE yomiswa ku-70~80℃*2H;
(2) Izidingo ze-TPU zama-extruder. Ama-extruder anezikulufo ezintathu ezinesilinganiso se-L/D esiphakathi kuka-20-30 kanye nesilinganiso sokucindezela esiphakathi kuka-2-4 afanelekela ukucutshungulwa kwe-TPU; igebe eliphakathi kwama-screw namapayipi ezinto ezibonakalayo licishe libe ngu-0.1-0.2mm. Umklamo wesikulufo ofanele kufanele ugweme ukungqubuzana okukhulu nokushisa ngokweqile, okubangela ukuthi izinto zibole futhi ziqhekeke, ngaleyo ndlela kuncishiswe izakhiwo zemishini zomkhiqizo.
Ijubane lesikulufu lincike kububanzi besikulufu. Njengoba i-TPU izwa ukuthosa nokusika, ijubane eliphezulu kakhulu lingaholela kalula ekuqhekekeni kwe-TPU. Uma iphansi kakhulu, izoholela nasekuqhekekeni ngenxa yesikhathi eside sokuhlala. Ngokuvamile, ijubane lesikulufu libekwe kububanzi obungu-25-60rpm, kuyilapho i-TPE idinga i-extruder ekhululekile.
(3) Ngaphambi kokuqala i-TPU, qiniseka ukuthi isikulufu, ikhanda lomshini kanye nesilinda sesikulufu kuhlanzwa ngaphandle kwamakhona afile. Wonke amalungiselelo aqediwe, njengokulungiselela umkhiqizo oqediwe kancane, ukuphrinta nokulungisa amaphutha, njll. Isinyathelo sokugcina ukuvula umkhiqizo oqediwe ngaphambi kokudonsa i-hopper ukuze ukhulule izinto eziku-screw. Esigabeni sokuqala sokuqala umshini, zama ukunciphisa isikhathi sokuhlala kwerabha esikulufini. Ngemva kokuba izinto sezikhishiwe, umshini uzoqalwa ngokushesha zingakapheli imizuzu emi-5. Lesi sikhathi esibucayi kumele siphathwe kahle ekuqaleni. Naka i-oda, futhi uzothola umphumela ophindwe kabili ngesigamu somzamo.
(4) I-TPE ayizweli ekugundeni, futhi ngeke ibole kalula uma ihlala isikhathi eside. Kulula kakhulu ukuyicubungula.
Ukuqhathaniswa kwezindleko zokucubungula izinto ze-TPE kanye ne-TPU zocingo kanye nekhebula:
(1) Izindleko zezinto ze-TPE kanye ne-polyester TPU azihlukile kakhulu. I-Polyester TPU iphakeme kancane, kodwa izindleko ze-polyether TPU ziphakeme kakhulu.
(2) Laba abathathu banobuningi be-TPE obuphansi kakhulu, kulandelwe ubuningi be-TPU be-polyether, kanye nobuningi be-TPU be-polyester obukhulu kakhulu, kanye nezindleko eziphansi kakhulu zokusebenzisa i-TPE.
Ngokuqhathanisa izakhiwo eziyisisekelo zezinto ze-TPE ne-TPU kanye nobuchwepheshe bokucubungula izinto, zombili zinezinzuzo nezinkinga zazo. Kodwa-ke, kusukela ekuhlaziyweni kwezintambo zemboni ye-TPU ne-TPE yasekhaya, isiteshi semakethe yezinto zokusetshenziswa ze-TPE sizinzile futhi silula, kuyilapho iningi lezinto zokusetshenziswa zokukhiqiza ze-TPU lithembele ekungenisweni kwamanye amazwe, futhi inqubo yokukhiqiza yasekhaya ihlehla kakhulu, ngakho-ke ukuzinza komkhiqizo kunzima ukuqinisekisa. Izici zezinto zokusetshenziswa zomkhiqizi ngamunye zihlukile kakhulu. Ontanga bethu be-elastomer badinga ukuqonda okwanele ukuze kube lula ukuthuthukiswa kokusetshenziswa nokuguqulwa.
Ngokuhlola ngokujulile isakhiwo sangaphakathi sezinto, ukuqapha izinguquko zokusebenza ngesikhathi sangempela kanye nokuhlonza okuqhubekayo kokuzinza, kuboniswa ukuhambisana nokukhuthazela kwezintambo ngaphansi kwezindawo zolwandle ezinzima. Uma sibheke phambili esikhathini esizayo, ukuthuthukiswa okuqhubekayo kwezinto kanye nesakhiwo semigqa yokudlulisa umkhumbi-ngwenya ngokuqinisekile kuzobeka isisekelo esiqinile kakhulu sokumbiwa nokusetshenziswa kwezinsiza zasolwandle.
IShanghai Lansheng Ikhebula lingahlangabezana nezidingo zakho ezahlukene zekhebula.