Imibhobho yePolyvinyl chloride (PVC) iye yaba sisiseko seziseko ezingundoqo zala maxesha, ulwakhiwo, kunye neenkqubo zemibhobho yamanzi, ezixatyiswa ngenxa yokuqina, ukufikeleleka, kunye nokuguquguquka kwazo. Umgangatho wale mibhobho ubukhulu becala unqunywe luhlobo lwe-PVC resin esetyenziswayo ekuveliseni kwabo.
Kwesi sikhokelo sibanzi, siza kungena kwihlabathi leentlaka zePVC, siphonononga ezona zinto zibalulekileyo ekufuneka ziqwalaselwe xa ukhetha eyona resin yomgangatho ophezulu wemveliso yombhobho.
Izinto eziPhembelela ukuKhethwa kwe-PVC Resin
Ukukhetha i-resin ye-PVC efanelekileyo kwimveliso yombhobho kubandakanya ukuqwalaselwa ngononophelo kwizinto ezininzi, kuquka:
Ubunzima beMolekyuli: Ubunzima bemolekyuli ye-PVC resin idlala indima ebalulekileyo ekumiseleni amandla empembelelo yombhobho, ukuqina, kunye nokusebenza ngokubanzi. Iinreyi eziphakamileyo ezinobunzima bemolekyuli ngokubanzi zikhokelela kwimibhobho enoxhathiso olwandisiweyo kunye nobungqongqo.
I-Melt Flow Index (MFI): I-MFI ibonisa ukuhamba kwe-resin ngexesha lenkqubo yokukhupha. I-MFI efanelekileyo iqinisekisa i-extrusion egudileyo, imilinganiselo yepayipi efanayo, kunye neziphene ezincitshisiweyo.
I-Vicat Softening Temperature (iVicat B): I-Vicat B imele ubushushu apho i-resin iqala ukuthamba phantsi komthwalo. Ixabiso eliphezulu leVicat B libonisa ukumelana nobushushu obungcono kunye nokuzinza kwe-dimensional yemibhobho.
Izongezo: Iintlaka zePVC zihlala ziyilwa kunye nezongezo zokuphucula iipropathi zazo kunye neempawu zokusetyenzwa. Izongezo eziqhelekileyo ziquka izizinzi, izihluzi, izithambiso, kunye nezilungisi zempembelelo.
Iindidi zePVC Resin yeMveliso yePipe
Ngokusekwe kwezi zinto zikhankanywe ngasentla, iireyini zePVC zokuvelisa imibhobho zinokuhlelwa ngokubanzi zibe ziindidi ezimbini eziphambili:
Ukumiswa kwe-PVC (S-PVC): Ii-resin ze-S-PVC ziveliswa ngokusebenzisa inkqubo yokumiswa kwe-polymerization, okubangelwa amaqhekeza angama-spherical kunye nokusabalalisa ubunzima be-molecular. Banikezela ngolungelelwano olulungileyo lwamandla empembelelo, ukuqina, kunye neempawu zokuqhuba.
I-Emulsion PVC (E-PVC): Ii-resin ze-E-PVC ziveliswa ngenkqubo ye-emulsion ye-polymerization, inikezela ngamaqhekeza amancinci kunye nokusabalalisa ubunzima be-molecular. Ngokuqhelekileyo babonisa amandla empembelelo ephezulu kunye nokuqina okuphantsi xa kuthelekiswa ne-S-PVC resins.
Ukukhetha eyona Resin ilungileyo kwiimfuno zakho
Ukukhethwa kwe-resin ye-PVC efanelekileyo kakhulu yokuvelisa umbhobho kuxhomekeke kwisicelo esithile kunye neempawu zepayipi ezifunwayo. Ngokomzekelo, iipayipi ezijoliswe kwizicelo zoxinzelelo zifuna i-resin ezinobunzima obuphezulu be-molecular kunye nexabiso le-Vicat B ukuqinisekisa amandla aneleyo kunye nokumelana nokushisa.
Ngokwahlukileyo, imibhobho yezicelo ezingezizo zoxinzelelo, ezifana ne-drainage okanye ukunkcenkceshela, inokubeka phambili amandla empembelelo kunye nokulula kokulungiswa, okwenza i-E-PVC i-resin ibe yinto efanelekileyo yokukhetha.
Ukuqukumbela
Ukukhetha i-PVC resin ngumba obalulekileyo wokwenza imibhobho yePVC ekumgangatho ophezulu. Ngokuqonda izinto eziphambili ezichaphazela ukhetho lwe-resin kunye neempawu zeentlobo ezahlukeneyo ze-resin, abavelisi bemibhobho banokwenza izigqibo ezinolwazi ezandisa ukusebenza kombhobho kunye nokuhlangabezana neemfuno zezicelo ezahlukeneyo.
Khumbula ukuba ukubonisana nababoneleli be-PVC abanamava kunye nokufuna isikhokelo sobugcisa kunokuba luncedo ekukhetheni i-resin efanelekileyo kwiimfuno zakho zokuvelisa umbhobho.
Ixesha lokuposa: Jul-02-2024