Inkqubo yePVC yokuZinzisa ubushushu

I-1) Gcoba kwaye unciphise i-HCL, inqanda umphumo wayo we-auto catalytic. Olu hlobo lwe-stabilizer lubandakanya iityuwa ezikhokelayo, iisepha ze-organic acid zesinyithi, iikhompawundi ze-organotin, iikhompawundi ze-epoxy, iityuwa ezingaphiliyo, kunye neetyuwa ze-thiol zetsimbi. Banokusabela nge-HCL kwaye banqande ukuphendula kwe-PVC ukususa i-HCL.

I-2) Ukutshintsha iiathom zeklorini ezingazinzanga kwii-athomu ze-PVC zivimbela ukususwa kwe-HCL. Ukuba i-organic tin stabilizer iququzelela kunye ne-athomu yeklorini engazinzanga ye-athomu ze-PVC, i-organic tin iya kutshintshwa kunye ne-athomu ye-chlorine engazinzanga kumzimba wokulungelelanisa.

3) Ukusabela okongeziweyo kunye nesakhiwo se-polyene kuphazamisa ukubunjwa kwenkqubo enkulu yokudibanisa kunye nokunciphisa umbala. Iityuwa ze-asidi ezingaxutywanga okanye i-esters ziqulethe i-double bonds, ezenza i-diene i-action reaction kunye ne-molecule ze-PVC ngokudibanisa iibhondi eziphindwe kabini, ngaloo ndlela ziphazamise isakhiwo sabo esidibeneyo kunye nokuthintela utshintsho lombala.

I-4) Ukubamba i-radicals yamahhala kunye nokuthintela ukuphendula kwe-oxidation, le stabilizer ye-thermal ingaba nemiphumo enye okanye ezininzi.

I-PVC efanelekileyo yokuzinzisa ukushisa kufuneka ibe yinto esebenzayo okanye umxube wezinto ezinokuthi zifezekise le misebenzi ilandelayo: okokuqala, buyisela izinto ezisebenzayo nezingazinzanga; Okwesibini kukufunxa kunye nokunciphisa i-HCL ekhutshwe ngexesha lokucubungula i-PVC, ukuphelisa umphumo ozenzekelayo wokuthotywa kwe-HCL; Okwesithathu kukunciphisa okanye ukudlula i-ion zetsimbi kunye nezinye izinto ezingcolileyo ezidlala indima ebangela ukuthotywa; Okwesine, iindlela ezahlukeneyo zokuphendula kweekhemikhali zinokuthintela ukukhula okuqhubekayo kweebhondi ezingaxutywanga kwaye zithintele ukuthotywa kombala; Okwesihlanu, inempembelelo yokukhusela kunye nokukhusela ekukhanyeni kwe-ultraviolet. Ngokuqhelekileyo, i-heat stabilizers isetyenziswa ngokudibeneyo ngokusekelwe kwintsebenzo yabo ethile, kwaye ukusetyenziswa kwabo ngabanye kunqabile. Ngaphaya koko, uninzi lweentlobo zikwimo yomgubo, ezinye zineekhemikhali eziyityhefu kakhulu. Ukuququzelela ukusetyenziswa, ukuthintela ukutyhefa kothuli, ukunciphisa izinto eziyityhefu okanye endaweni yazo ngezinto ezingezizo eziyityhefu, iintlobo ezininzi ze-composite stabilizers ziye zaphuhliswa ngaphakathi nakumazwe ngamazwe kwiminyaka yakutshanje. Ngokomzekelo, i-German Bear brand composite stabilizer series, kunye ne-organic tin okanye i-organic tin stabilizers evela kumazwe afana ne-United States, iJamani, iJapan kunye ne-Netherlands, zonke zinesabelo esikhulu semarike e-China. Ke ngoko, kuyimfuno engxamisekileyo yophuhliso lweshishini leplastiki laseTshayina ukukhuthaza ngokupheleleyo ukusetyenziswa kwezixhobo ezintsha zokuzinzisa ezisebenza kakuhle, ezingabizi kakhulu, ezingenathuli, ezingenatyhefu okanye ezinetyhefu ephantsi.