Ukulungiswa kunye neempawu zePolyurethane Semi-rigid Figid kwiiNdawo zeNdawo yokuSebenza eziPhezulu.
I-Arrrest kwi-Interrior yaseMoto yinxalenye ebalulekileyo ye-CAB, edlala indima yokutyhala nokutsala umnyango kwaye ibeka ingalo yomntu emotweni. Kwimeko yemeko kaxakeka, xa imoto kunye nokungqubana kwezandla, i-Polyproill ethambileyo (i-Polypropyloniene) kunye nenye ye-pulypropylonithi-i-styrenene-inokubonelela nge-racyraldonn I-Polyreurthane ye-Polyrethane ethambileyo i-Foills inokubonelela ngezandla ezilungileyo kwaye ilungele ukuthungwa komhlaba, ngaloo ndlela ukuphucula intuthuzelo nobuhle be-cockpit. Ke ngoko, ngokuphuhliswa kwemveliso yemoto kunye nokuphuculwa kweemfuno zabantu kwizixhobo zangaphakathi, izibonelelo ze-polyurethane foam ethambileyo kwiziphatho ze-automotive ziya zisiba mbi ngakumbi.
Zintathu iindlela ze-polyrethane zezandla ezithambileyo: I-foam yomondelelo ophakamileyo, i-foam yokuzithemba kunye ne-semi-figid foam. Umphezulu wangaphandle wesandla esiphezulu sokulimala sigutyungelwe nge-pvc (i-polyvinyl chloride) yolusu, kwaye i-Interrior yi-Polysurethane General Food. Inkxaso ye-foam ibuthathaka, amandla aphantsi, kwaye umbilini phakathi kwegwebu kunye nolusu alunawo. I-handrail ye-sutlid inomkhombelo we-fooam onesikhumba, indleko eziphantsi, idigri ephezulu, kwaye isetyenziswa ngokubanzi kwizithuthi zorhwebo, kodwa kunzima ukuthathela ingqalelo amandla omphezulu kunye nentuthuzelo iyonke. I-Semi-Rigid Arrid igqunywe ngolusu lwe-PVC, ulusu lubonelela ngokuchukumisa kakuhle, kwaye i-foam yangaphakathi engqongqo ivakalelwa kukuba ivakalelwe kukuba isetyenziswe ngaphakathi kwemoto yabakhweli.
Kweli phepha, ifomula esisiseko yePolyurethane Semi-Figid Figid yeziphatho zemoto yenziwe, kwaye uphuculo lwayo lufundwe ngesi siseko.
Icandelo lovavanyo
Owona mbhalo ophambili
I-Polyether Polyol A (i-Hydroxyl Ixabiso lama-30 ~ 40 mg / g), iPolymer Polyl B (i-Holymer Polyby B (i-Hydroxyl Ixabiso le-25 ~ 30 mg / g): I-LTD. I-MDI [diphantlmethane diisocyastate, w ((i (NCO) ingama-25% ~ ~ 30), i-antioxited States Ukumanzi ukusasazeka (iarhente ye-1), ukuhlanjwa kwemichithi (iarhente 2): Imichiza ye-bute. Ezi zinto zingaphantsi kwezixhobo zenqanaba lezorhwebo. I-PVC ilin
Izixhobo eziphambili kunye nezixhobo
I-SDF-400 Chwetheza umxube wesantya esiphezulu, i-Ar3202CN CARENT, i-Aluminium Gaven (101bm × 10cm), i-10cm × 10cm), i-10CM × 1CM × 41
Ukulungiswa kwefomula esisiseko kunye nesampulu
Ukuqulunqwa kwesiseko se-semi-rigd Polyurethane igwebu kwiTheyibhile 1.
Ukulungiswa kwesampulu yovavanyo yovavanyo: I-polvorite polyeete (impahla) ilungiselelwe ngokwesixhobo soyilo, ixutywe ne-MDI eguqulweyo kwi-GOAM, kwaye yavula i-roldred yexesha elithile ukuze ifumane isampulu ye-semi-prolyredthane ye-prolyredthane ye-prolyredthane ye-polyurethane ye-prolyredthane ye-rilid Polydurethane ye-Polyurethane ye-Polyurethane ye-Polyurethane ye-Polyurethane.
Ukulungiswa kwesampulu yovavanyo lwendlela yokusebenza
Uvavanyo lwentsebenzo
Iipropathi zoomatshini: iipesenti ezingama-40 ze-CLD (ubunzima obuqhelekileyo) ngokwe-ISO-3386; Amandla e-sunseng kunye ne-Elongretion kwikhefu avavanywa ngokomgangatho we-IS-1798; Amandla eendaba avavanywa ngokomgangatho we-ISO-8067. Intsebenzo ye-Bonding: Umatshini we-elektroniki we-elektroniki usetyenziselwa ukuthoba ulusu kunye ne-foam 180 ° ngokomgangatho we-OEM.
Ukusebenza kweminyaka yobudala: Vavanya ukulahleka kweepropathi zoomatshini kunye neepropathi eziqhumayo emva kweeyure ezingama-24 zokwaluphala kwi-120 ℃ ngeqondo lobushushu le-OEM.
Iziphumo neengxoxo
Ipropathi yoomatshini
Ngokutshintsha umyinge wePolyether Polylal A kunye nePolymer Polylal B kwifomula yesiseko, impembelelo ye-Polyermer Dosage yePolyether kwiiPropathi zePolytid Polyrethane ihlolwe, njengoko kubonisiwe kwiTheyibhile 2.
Ingabonwa kwiziphumo kwiTheyibhile 2 ukuba umlinganiselo wePolyether Polyol A ukuya kwiPolymer Polylal B inefuthe elibonakalayo kwiimpawu zePolymerthane Foam. Xa umyinge wePolyether Polyol A ukuya kwiPolymer Polylal B ukunyuka, i-Elong Sation kwi-Wards, ubunzima obucinezelayo bancipha ukuya kwinqanaba elithile, kwaye amandla abunjiweyo aguqukele kancinci. The molecular chain of polyurethane mainly consists of soft segment and hard segment, soft segment from polyol and hard segment from carbamate bond. Kwelinye icala, ubunzima be-molecular ye-phumela kunye ne-Hydroxyl ye-Polyols ezimbini zahlukile, kwelinye icala, iPolymer Polysol B yi-Polylool iguqulwe ngu-Polyloniaried Polyl, i-Polymer Polylity B iqulethe ubuchule bobuxoki. Xa uPolyteri Polyol A ngamacandelo angama-80 kunye nePolymer Polyol B ngamacandelo ali-10, iipropathi ezibanzi zenkululeko zingcono.
Ipropathi eBondayo
Njengemveliso enomatshini wokushicilela ophakamileyo, isandla siya kunciphisa kakhulu intuthuzelo yamalungu ukuba umgwebi kunye nolusu lwe-teel, ngoko ke intsebenzo yePolyurethane i-Polyurethane Fom kwaye ulusu luyafuneka. Kwisiseko sophando olungasentla, ukongezwa kwabasasazi abahlukeneyo ukuvavanya iipropathi ze-adheam kunye nolusu. Iziphumo ziboniswa kwiTheyibhile 3.
Ingabonwa kwiTheyibhile 3 ukuba abantu abasasazekileyo abazimanzi baneempembelelo ezibonakalayo kwi-foam kunye nolusu: ukuwa kwe-2, okunokubangelwa kukuvulwa okugqithisileyo kwe-2; Emva kokusetyenziswa kwe-Onvietives 1 kunye ne-3, imitya yesampulu yendawo engenanto inolwando oluthile, kwaye amandla e-storeing ongamalunga ne-17% i-ortication iphantse ibe yi-25% yesampulu. Umahluko phakathi koongeso lwe-1 kunye no-Arrive 3 lubangelwa ngumahluko kwindlwana yezinto ezihlanganisiweyo kumphezulu. Ngokubanzi, ukuvavanya ukutyeba kolwelo kwi-uqinile, i-angle yoqhakamshelwano yiparamitha ebalulekileyo yokulinganisa i-godter engaphezulu. Ke ngoko, i-angle yoqhakamshelwano phakathi kwezinto ezihlanganisiweyo kunye nolusu emva kongeze abasasazi ababini emanziweyo bavavanywa, kwaye iziphumo zibonisiwe kumzobo 1.
Ingabonwa kumzobo 1 ukuba isandi sokunxibelelana sesampulu sesona sikhulu, singama-27 °, kunye nomnxibelelanisi we-Arhente oncedisayo 3 °. Oku kubonisa ukuba ukusetyenziswa kwe-ASTATE 3 kunokuphucula ubuhlalu bobume bezinto ezihlanganisiweyo kunye nolusu luye kwinqanaba elikhulu, kwaye kulula ukusasazeka kumgangatho wolusu, ke ukusetyenziswa kwelona nqanaba liphezulu.
Ipropathi yokuhlutha
Iimveliso zezandla zicinezelwe emotweni, ukuguqulwa rhoqo kwelanga kuphezulu, kwaye intsebenzo yeminyaka yenye intsebenzo ebalulekileyo engu-Polyturethane Sprail kufuneka iqwalasele. Ke ngoko, ukuSebenza okudala kwefomula esisiseko kuvavanywa kwaye kwenziwa isifundo sophuculo, kwaye iziphumo zaboniswa kwiTheyibhile 4.
Ngokuthelekisa idatha kwiTheyibhile 4, inokufunyanwa ukuba iipropathi zoomatshini kunye neempawu zefomula zefomula ezisisiseko zincitshisiwe kakhulu emva kokwaluphala kwe-120 Ukuphulukana nokusebenza kwe-24h ukwaluphala ngama-23% ~ 26%. Kuboniswa ukuba impahla yobushushu yobushushu yefomula esisiseko ayilunganga, kwaye ipropathi yokwaluphala yefom ye-Worpula inokuthi iphuculwe ngendlela eyongezelelekileyo kwifomula. Ngaphantsi kweemeko ezifanayo zokuvavanya emva kongezwa kwe-antisoxidant A, ilahleko yeepropathi ezahlukeneyo emva kwe-12h yayiyi-7% ~ 8%, kunye nokulahleka kweepropathi ezahlukeneyo emva kwe-5% ~ 16%. Ukwehla kweepropathi zoomatshini kubangelwa ikakhulu kothotho lwendlela yokwakhiwa kwentambo kunye ne-radicals esebenzayo ngexesha lenkqubo yokwaluphala, kubangela utshintsho olusisiseko kwisakhiwo. Kwelinye icala, ukwehla komgangatho wokusebenza kubangelwe ukwehla kweempawu zobuchwephesha, kwelinye icala lolusu luqukethe inani elikhulu leplastiki, kwaye umkhuhlane we-PVC uhambisa umphezulu ngexesha lokwaluphala kwe-thermal ogung. Ukongezwa kwee-antioxididants kunokuphucula iipropathi zawo zokuphatha ezomeleleyo, ubukhulu becala ngenxa yokuba i-Antioisoxidants inokuphelisa i-radicals esandula ukuvelisa, ukulibazisa okanye ukuloba inkqubo ye-oxidation yePolymer.
Intsebenzo ebanzi
Ngokusekwe kwezi ziphumo zilapha ngasentla, eyona fomula iyoyilwe kwaye kwavavanywa iipropathi ezahlukeneyo. Intsebenzo yefomula ithelekiswa neyo ye-Polyurrethane General High Jam. Iziphumo ziboniswa kwiTheyibhile 5.
Njengoko kunokubonwa kwiTheyibhile 5, ukuSebenza kwePolyurethane ye-Polyurthane ye-Polyurthane ineengenelo ezithile ngaphezulu kweefomula ezisisiseko nezona jikelele, kwaye zilungele ukusetyenziswa kwesandla esiphezulu sokusebenza.
Ukuqukumbela
Ukulungelelanisa inani le-polyet kunye nokukhetha ukuntywila okuphumelelayo kunye ne-antiyoxidant kunokunika i-semi-rigid polyurethane ye-proourethane properties mespries, iipropathi ezihle kakhulu ubushushu. Ngokusekwe kwintsebenzo egqwesileyo ye-foam, le Polyurethane ye-Polyurethane Semi-Rigid Foid inokusetyenziswa kwizixhobo ze-uffer ezifana nezandla kunye neetafile zesixhobo.
IXESHA LOKUQALA: UJUL-25-2024