Esimweni sesimanje sezimboni nezentengiselwano, amasondo enziwe ngezinto ezahlukene asetshenziswa kabanzi ezimweni ezahlukene ngenxa yezakhiwo zawo ezihlukile. Kusukela kumasondo enayiloni, amasondo enayiloni enziwe ngensimbi (MC). Kusuka kumasondo enjoloba aqinile, amasondo enjoloba athambile. Bese kuba amasondo enjoloba akhiwe ngensimbi, amasondo enjoloba angenziwa ngensimbi engaguquki. Kanye namasondo ephampu namasondo ensimbi akhiwe ngensimbi. Isondo ngalinye lalawa lihlukile futhi liyanelisa izindawo ezahlukahlukene zomhlaba eziyinkimbinkimbi kanye nezidingo zokuthwala imithwalo. Okulandelayo. Sizophinde sihlanganise nezinye izinhlobo eziningana zamasondo.
Isondo le-polypropylene, elaziwa kakhulu ngokuthi isondo le-PP
I-Polypropylene iyinto eyenziwe nge-thermoplastic eyaziwa ngokumelana kwayo nokushayisana, ukumelana nokugqwala, ukumelana nokungqubuzana, izakhiwo ezingaphawuli, ezingadayisi futhi ezingezona ezinobuthi. Le nto ayinaphunga, ayi-hygroscopic futhi imelana nezinto eziningi ezigqwalisayo. Kodwa-ke, ayinazo izinto eziqinisa i-oxidizing kanye nama-halogenated compounds. Amasondo e-polypropylene afanele amazinga okushisa asukela ku--20°C kuya ku-+60°C. Kodwa-ke, uma izinga lokushisa elizungezile lingaphezu kuka-+30°C, amandla ayo okuthwala azoncishiswa.
Isondo le-Polyurethane
I-Polyurethane (TPU) iyi-thermoplastic polyurethane. Lawa masondo anomgogodla we-polypropylene noma we-nylon. I-Polyurethane ifakwa okwesibili emphethweni wangaphandle womgogodla ukuze yakhe ubuso besondo. Amasondo e-polyurethane anezimfanelo ezinhle kakhulu zokuvikela phansi, amunca ukudlidliza, awanamatheli, awadayisi, ayanwebeka, ayamelana nokugqwala futhi amelana nokugqwala yizinto eziningi ezinolaka. Ngaphezu kwalokho. Iphinde imelane namanzi ashisayo kanye nomhwamuko wamanzi ngaphansi kwezimo ezithile. Ukumelana kwayo nokugoqa kuphansi. Ifanelekela ububanzi bezitezi. Imibala ingenziwa uma iceliwe. Ihlangabezana nezidingo ezahlukene. Ama-monowheel e-polyurethane e-thermoplastic afanele amazinga okushisa asukela ku--45 °C kuya ku-+90 °C. Kodwa-ke, amandla okuthwala umthwalo ayancipha emazingeni okushisa angaphezu kuka-+35 °C.
Isondo le-Elastomer le-Cast Polyurethane (CPU)
Ama-elastomer e-polyurethane ahlanganisiwe (ama-CPU) angama-elastomer e-polyurethane afakwa i-thermosetting akhiwe yi-chemical reaction. Izinto eziyisisekelo zifaka phakathi ama-polyester polyol, ama-diisocyanates nama-glycols. Lolu hlobo lwesondo lusebenzisa i-iron noma i-aluminium core njenge-core, kanti i-polyurethane ithululelwa onqenqemeni lwangaphandle lwe-core. Ubuso besondo bakhiwa ngokuqina emazingeni okushisa aphezulu. Amasondo e-polyurethane athululelwe avikela kakhulu umhlabathi, akhipha ukudlidliza, awamaki, awadayisi, amelana nokugqwala okuhle, amelana nokugqwala yizinto eziningi ezinolaka, amelana ne-UV. Ngaphezu kwalokho. Inezinga eliphezulu lenduduzo yokusebenza, ukumelana nokugoqa okuphansi. Ayikhiqizi ukushisa okuningi uma ithwalwa yimithwalo enamandla. Umbala umhlophe. Ifanele amazinga okushisa asukela ku--30°C kuya ku-+70°C. Kufika ku-+90°C isikhathi esifushane. emazingeni okushisa angaphansi kuka--10°C. Ukuqina kwayo kusebenza kahle kakhulu.
Elinye isondo le-polyurethane elenziwe ngensimbi (i-CPU)
Lawa masondo e-polyurethane ahlanganisiwe (i-CPU) asekelwe kuma-elastomer e-polyurethane afakwa ku-thermosetting akhiwe ngendlela yokusabela ngamakhemikhali. Akhiwe kuma-polyester polyols, ama-diisocyanates nama-glycols. Anezici zokuvikela umhlabathi, ukungamaki, ukungadayisi, ukumelana nokungqubuzana, ukuqina okuhle kanye nokumelana nokugqwala kwezinto eziningi ezinolaka. Futhi amelana ne-UV. Anezinga eliphansi kakhulu lokuguquguquka okuhlala njalo. Amelana nokugingqika okuphansi. Akhiqiza ukushisa okuncane uma ebhekene nemithwalo enamandla. futhi amelana ne-hydrolysis. Afaneleka kakhulu isivinini esiphezulu esifika ku-16km/h. Imibala ingalungiswa uma iceliwe. Ububanzi bokushisa obusebenzayo buphakathi kuka--45°C no-+90°C, kanye nesikhathi esifushane esiphezulu esingu-+90°C.
Isondo le-Polyurethane (PUE) elinegwebu
Amasondo e-polyurethane ane-foam (PUE). Ayaziwa nangokuthi i-polyurethane enezimbobo ezincane. Iyi-polymer yebhlogo. Lawa masondo abonakala ngokunwebeka okuhle, izakhiwo zawo zomzimba zidlula ezamanye ama-elastomer anezimbobo ezincane anobukhulu obufanayo. Amasondo e-polyurethane ane-foam anezakhiwo ezinhle ezifana nokunwebeka okuphansi, isisindo esilula, okulula ukuguquguquka, okulula ukubumba, ukumelana nokushayisana, ukumuncwa okuhle kwe-acoustic, ukuthwala umthwalo ophezulu, ukunwebeka okuphezulu, ukumelana nokugoqeka okuhle, ukumelana nokucindezela okuphansi, ukumelana nokuklwebheka, ukumelana nokudabuka, ukumelana nemisebe kanye nokumuncwa kokushaqeka kanye ne-buffer. Inobubanzi obukhulu bobulukhuni. Kusukela e-Shore A10 kuya ku-100, ilungele ukusetshenziswa njengezinto zokusika.
Sekukonke. Isondo ngalinye lalawa linesethi yalo. Ngalinye linezici zalo ngokwezinto ezibonakalayo, ukusebenza kanye nendawo efanelekile. Lapho kukhethwa amasondo, sidinga ukuhlanganisa lokhu ngokusekelwe ezimweni ezithile zokusetshenziswa nezidingo. ukuqinisekisa ukuthi kukhethwa isondo elifanele kakhulu. Ngakho-ke, lisebenza kahle kakhulu.
Isikhathi sokuthunyelwe: Mashi-04-2025