I-TPR inezinzuzo ezilandelayo: (1) Ingacutshungulwa ngemishini yokubumba evamile ye-thermoplastic, njengokubunjwa komjovo, ukubunjwa kwe-extrusion, ukubunjwa kokushaywa, ukubunjwa kokucindezela, nokubunjwa kokudlulisa isikhunta;(2) Kungenziwa vulcanized ngomshini wokubumba umjovo wenjoloba, futhi isikhathi singafinyezwa sisuka cishe ku-20min siye ngaphansi kwe-1min;(3) Ingabunjwa futhi ifakwe umshini wokunyathelisa, ngesivinini esicindezelayo kanye nesikhathi esifushane sokwenza i-vulcanization;(4) Imfucumfucu ekhiqizwe ohlelweni lokukhiqiza (i-burrs ebalekayo kanye nerabha ekhipha imfucuza) kanye nemikhiqizo engcolile yokugcina ingabuyiswa ngokuqondile ukuze isetshenziswe kabusha: (5) Imikhiqizo emidala ye-TPR esetshenzisiwe ingamane igaywe kabusha futhi isetshenziswe kabusha ukuze kuncishiswe ukungcoliswa kwemvelo futhi yandise. umthombo wokuvuselelwa kabusha kwezinsiza;(6) Akukho vulcanization edingekayo ukuze wonge amandla.Thatha ukusetshenziswa kwamandla kokukhiqizwa kwe-hose ephezulu njengesibonelo: 188MJ / kg yerabha kanye ne-144MJ / kg ye-TPR, engasindisa ngaphezu kuka-25% wamandla;(7) Ukuziqinisa kukhulu, futhi ifomula yenziwe lula kakhulu, ukuze ithonya le-ejenti ehlanganisiwe ku-polymer linciphe kakhulu, futhi ukusebenza kwekhwalithi kulula ukuyiqonda;(8) Ivula izindlela ezintsha zemboni yenjoloba futhi yandise insimu yokusetshenziswa kwemikhiqizo yenjoloba.Okubi ukuthi ukumelana nokushisa kwe-TPR akukuhle njengalokho kwerabha, futhi impahla ebonakalayo iyancipha kakhulu ngokunyuka kwezinga lokushisa, ngakho-ke ububanzi bokufaka isicelo bulinganiselwe.Ngesikhathi esifanayo, ukuguqulwa kokucindezela, ukuqina nokuqina kungaphansi kwerabha, futhi intengo ivame ukuphakama kunaleyo yerabha efanayo.Kodwa-ke, ngokujwayelekile, izinzuzo ze-TPR zisavelele, kuyilapho ukungalungi kuthuthuka njalo.Njengohlobo olusha lwezinto ezingavuthiwe ezonga amandla nemvelo, i-TPR inethemba lentuthuko elithembisayo.
I-Polyurethane (PU), igama eligcwele i-polyurethane, iyinhlanganisela ye-polymer.Yenziwe ngu-Otto Bayer ngo-1937.I-polyurethane ihlukaniswe izigaba ezimbili: uhlobo lwe-polyester kanye nohlobo lwe-polyether.Angenziwa amapulasitiki e-polyurethane (ikakhulukazi amapulasitiki anegwebu), imicu ye-polyurethane (ebizwa ngokuthi i-spandex e-China), amarabha e-polyurethane nama-elastomers.
I-polyurethane ethambile ngokuyinhloko iyisakhiwo somugqa we-thermoplastic, esinokuzinza okungcono, ukumelana namakhemikhali, ukuqina kanye nezakhiwo zemishini kunezinto zegwebu le-PVC, futhi linokuguqulwa okuncane kokucindezelwa.Inokufakwa kahle kwe-thermal, ukufakwa komsindo, ukumelana nokushaqeka nokusebenza kwe-anti-virus.Ngakho-ke, isetshenziswa njengokupakisha, ukwahlukanisa umsindo, izinto zokuhlunga.
Ipulasitiki ye-polyurethane eqinile inesisindo esincane, ihle kakhulu ekufakeni umsindo kanye nokufaka ukushisa okushisayo, ukumelana namakhemikhali, izakhiwo ezinhle zikagesi, ukucutshungulwa kalula, nokumunca amanzi aphansi.Isetshenziswa kakhulu ekwakhiweni, kwezimoto, embonini yezindiza, izinto zokwakha ezishisayo.
Ukusebenza kwe-polyurethane elastomer kuphakathi kwepulasitiki nerabha, ukumelana nowoyela, ukumelana nokugqoka, ukumelana nokushisa okuphansi, ukumelana nokuguga, ubulukhuni obuphezulu nokunwebeka.Isetshenziswa kakhulu embonini yezicathulo kanye nemboni yezokwelapha.I-polyurethane nayo ingasetshenziselwa ukwenza izinto zokunamathisela, ukunamathela, isikhumba sokwenziwa, njll.
I-polyurethane yavela ngawo-1930.Ngemva kweminyaka ecishe ibe ngu-80 yokuthuthuka kobuchwepheshe, le nto isisetshenziswe kabanzi emkhakheni wefenisha yasekhaya, ukwakhiwa, izidingo zansuku zonke, ezokuthutha, nezinto zikagesi zasendlini.
Izinzuzo: I-PVC eqinile ingenye yezinto ezisetshenziswa kakhulu zepulasitiki.Impahla ye-PVC iwuhlobo lwezinto ezingezona ikristalu.
Ekusetshenzisweni kwangempela, izinto ze-PVC zivame ukungezwa ngeziqinisi, izinto zokugcoba, ama-axiliary processing agents, ama-pigments, ama-ejenti womthelela nezinye izithasiselo.
Izinto ze-PVC azikwazi ukuvutha, amandla aphezulu, ukumelana nesimo sezulu kanye nokuzinza okuhle kakhulu kwejometri.
I-PVC inokumelana okuqinile nama-oxidants, ama-ejenti anciphisayo nama-asidi aqinile.Kodwa-ke, ingagqwala ngama-acid oxidizing agxilile, njenge-concentrated sulfuric acid kanye ne-concentrated nitric acid, futhi ayifanele ukuthintana nama-hydrocarbon anephunga elimnandi nama-hydrocarbon ane-chlorinated.
Ukubi: Izici zokugeleza kwe-PVC zimbi impela, futhi uhla lwenqubo yalo luncane kakhulu.Ikakhulukazi, izinto ze-PVC ezinesisindo esikhulu samangqamuzana zinzima kakhulu ukucubungula (izinto ezinjalo ngokuvamile zidinga ukwengeza okokugcoba ukuze kuthuthukiswe izici zokugeleza), ngakho-ke izinto ze-PVC ezinesisindo esincane samangqamuzana zivame ukusetshenziswa.
Ukuncipha kwe-PVC kuphansi kakhulu, ngokuvamile ku-0, 2 - 0, 6%.
I-PVC kulula ukukhulula igesi enobuthi enqubweni yokubumba.
Inzuzo yenayiloni:
1. Amandla aphezulu emishini, ukuqina okuhle, ukuqina okuphezulu namandla okucindezela.Amandla athile aqinile aphakeme kunawensimbi, futhi amandla athile acindezelayo afana nalawo ensimbi, kodwa ukuqina kwawo kungaphansi kwawensimbi.Amandla okuqina asondelene namandla esivuno, aphakeme ngokuphindwe kabili kune-ABS.Umthamo wokumunca womthelela nokudlidliza kwengcindezi unamandla, futhi amandla omthelela aphakeme kakhulu kunalawo amapulasitiki ajwayelekile, futhi angcono kunalawo e-acetal resin.
2. Ukumelana nokukhathala kuvelele, futhi izingxenye zisengakwazi ukulondoloza amandla okuqala emishini ngemva kokugoba okuphindaphindiwe.I-PA ivamise ukusetshenziswa ezimeni lapho umphumela wokukhathala ngezikhathi ezithile wama-handrails ezitebhisi ezizihambelayo kanye namarimu amabhayisikili epulasitiki amasha asobala kakhulu.
3. Iphuzu eliphezulu lokuthambisa kanye nokumelana nokushisa (okufana neyiloni 46, inayiloni yekristalu ephezulu inezinga lokushisa eliphezulu lokuguquguquka elishisayo, elingasetshenziswa isikhathi eside ngaphansi kuka-150 ℃. Ngemva kokuqiniswa kwe-fiber yengilazi, i-PA66 inezinga lokushisa lokushisa elingaphezulu kwe-thermal deformation. 250 ℃).
4. Indawo ebushelelezi, i-coefficient encane yokungqubuzana, ukumelana nokuguga.Iyazithambisa futhi inomsindo ophansi uma isetshenziswa njengengxenye yemishini ehambayo.Ingasetshenziswa ngaphandle kokugcoba lapho umphumela wokungqubuzana ungekho phezulu kakhulu;Uma i-lubricant idingeka ngempela ukunciphisa ukungqubuzana noma ukusiza ukuchithwa kokushisa, amanzi, uwoyela, amafutha, njll. kungakhethwa.Ngakho-ke, njengengxenye yokudlulisela, inempilo ende yesevisi.
5. Iyakwazi ukumelana nokugqwala, i-alkali kanye noketshezi oluningi lukasawoti, i-asidi ebuthakathaka, amafutha enjini, uphethiloli, ama-aromatics hydrocarbon compounds kanye nezincibilikisi ezijwayelekile, i-inert kuma-aromatics compounds, kodwa ayimelani nama-acids aqinile nama-oxidants.Ingakwazi ukumelana nokuguguleka kukaphethiloli, amafutha, amafutha, utshwala, i-alkali ebuthakathaka, njll. futhi inekhono elihle lokulwa nokuguga.Ingasetshenziswa njengempahla yokupakisha yamafutha okugcoba, uphethiloli, njll.
Ububi:
1. Ukumuncwa kwamanzi okungekuhle kanye nokuzinza kwe-dimensional.
2. Ukumelana okungalungile ekushiseni okuphansi.
3. Impahla ye-antistatic impofu.
4. Ukumelana nokushisa okungalungile.
Isikhathi sokuthumela: Feb-04-2023