Thermoplastic elastomer TPE / TPR zokudlala, esekelwe kwi-SEBS kunye ne-SBS, luhlobo lwezixhobo ze-polymer alloy kunye neepropathi zeplastiki eziqhelekileyo kodwa iipropati zerabha.Baye batshintsha ngokuthe ngcembe iiplastiki zemveli kwaye zezona zinto zikhethwayo kwiimveliso zaseTshayina ukuya phesheya kwaye zithumele kumazwe aseYurophu, eMelika, eOstreliya, eJapan nakwezinye iindawo.Ine-tactile elasticity elungileyo, uhlengahlengiso oluguquguqukayo lombala kunye nobunzima, ukukhuselwa kwendalo, i-halogen-free, i-non-toxic kunye nencasa;I-Anti yokutyibilika kunye nokumelana nokunxiba, ukumelana nokudinwa okuguquguqukayo, ukufunxa ukothuka okugqwesileyo, ukuxhathisa okulungileyo kwe-UV, ukuxhathisa kwe-ozone kunye nokumelana neekhemikhali;Ngexesha lokucubungula, akufuneki ukuba yomiswe kwaye inokuphinda isetyenziswe.Inokuthi yenziwe ngokubunjwa kwenaliti yesibini, igqunywe kwaye idityaniswe nePP, PE, PS,ABS, I-PC, i-PA kunye nezinye izinto ze-matrix, okanye zenziwe ngokwahlukeneyo.Buyisela i-PVC ethambileyo kunye nerabha ye-silicone.
Ivumba elikhutshwe ngamathoyizi e-TPR ngenxa yezizathu ezininzi, kubandakanywa umatshini, amanyathelo okusebenza, kunye neendlela zokusebenza.Akunakuphepheka ukuba i-TPR iya kuba nephunga, kodwa sinokunciphisa iphunga ukuze abantu bangabi buhlungu, ukuze wonke umntu avume.Abavelisi abahlukeneyo banamafomula abo, kwaye iphunga eliveliswayo likwahlukile.Ukuze kuphunyezwe iphunga elikhanyayo, kufuna indibaniselwano egqibeleleyo yefomula kunye nenkqubo yokwenza umsebenzi olungileyo.
1. Ifomula
Uninzi lwamathoyizi zenziwe ngezinto ze-TPR kunye ne-SBS njengeyona substrate iphambili.I-SBS kufuneka ithathelwe ingqalelo ekukhethweni.I-SBS ngokwayo inevumba kunye nevumba leglue yeoli likhulu kunelo elomileyo.Zama ukusebenzisa i-K glue ukuphucula ubulukhuni, ukunciphisa inani le-PS, kwaye ukhethe i-oyile ene-flash point ephezulu ye-wax yeparafini.Ioli emhlophe engcolileyo nayo iya kuba nephunga elithile emva kokufudumeza, ngoko kuyacetyiswa ukuba ukhethe iimveliso ezivela kubavelisi abaqhelekileyo.
2. Inkqubo
Iimveliso ze-TPR zefigurine kunye ne-SBS njengeyona nto iphambili kufuneka ilawule ngokungqongqo inkqubo.Kungcono ukuba ungasebenzisi iidramu zokuxuba ezikhawulezayo kunye nezithe tye kwizinto zokuxuba, kwaye ixesha akufanele libe lide kakhulu.Ngokuqhelekileyo, iqondo lokushisa kufuneka lilawulwe lisezantsi kangangoko.I-180 ℃ kwicandelo lokucheba kunye ne-160 ℃ kumacandelo amva anele.Ngokubanzi, i-SBS ngaphezulu kwe-200 ℃ ithanda ukuguga, kwaye ivumba liya kuba libi kakhulu.Iinqununu ze-TPR ezilungiselelwe kufuneka zipholile ngokukhawuleza ukuze zidibanise iphunga, kwaye ziqinisekise ukuba akukho bushushu obuninzi ngexesha lokupakisha.
3. Ukuqhubekeka okulandelayo
Emva kokuba amathoyizi epholile ngokubumba inaliti ye-TPR, musa ukupakisha ngokukhawuleza.Sinokuvumela iimveliso ziguquke emoyeni malunga neentsuku ezi-2.Ukongeza, i-essence inokongezwa ngexesha lenkqubo yokubumba i-injection ukugubungela incasa ye-TPR ngokwayo.
Ixesha lokuposa: Jan-06-2023