Ukurisayikilishwa kwepolyvinyl chloride

I-Polyvinyl chloride yenye yeeplastiki ezintlanu eziphambili zenjongo jikelele kwihlabathi. Ngenxa yeendleko zayo ezisezantsi zokuvelisa xa kuthelekiswa ne-polyethylene kunye nezinye iintsimbi, kunye nokusebenza kwayo okugqwesileyo kunye neempawu zomzimba kunye neekhemikhali zeemveliso, inokwanelisa iimfuno zokulungiselela nzima ukuthamba, i-elastic, ifayibha, ukutyabeka kunye nezinye iipropati, kwaye isetyenziswa ngokubanzi. kwiinkalo ezahlukeneyo ezifana nezoshishino, ezolimo, kunye nokwakha. Indlela yokurisayikilisha kunye nokusetyenziswa kwenkunkuma yepolyvinyl chloride ibaluleke kakhulu.
1.Ukuzalwa ngokutsha
Okokuqala, ukuvuselelwa ngokuthe ngqo kunokwenziwa. Ukuhlaziywa ngokuthe ngqo kweeplastiki zenkunkuma kubhekiselele ekusebenzeni ngokuthe ngqo kunye nokubunjwa kweeplastiki zenkunkuma ngokucoca, ukutyumza, kunye neplastiki ngaphandle kwesidingo sokuguqulwa okuhlukeneyo, okanye ukuqhutyelwa kunye nokubunjwa kweemveliso ngokusebenzisa i-granulation. Ukongeza, inokuguqulwa kwaye ihlaziywe. Ukuguqulwa kunye nokuhlaziywa kweeplastiki ezindala kubhekiselele kukuguqulwa komzimba kunye neekhemikhali zeeplastiki ezisetyenzisiweyo ngaphambi kokuba zisetyenzwe kwaye zenziwe. Ukuguqulwa kunokwahlulwa kukuguqulwa komzimba kunye nokuguqulwa kweekhemikhali. Ukuzalisa, i-fiber composite, kunye nokudibanisa ukuqina zezona ndlela ziphambili zokuguqulwa komzimba wePVC. Ukuzaliswa kokuguqulwa kubhekiselele kwindlela yokuguqulwa yokuxuba ngokulinganayo iimodyuli zokuzalisa iinxalenye ezinemodyuli ephezulu kakhulu kwiipolymers. I-Fiber composite ukuqinisa ukuguqulwa kokuqinisa ibhekisela kwindlela yokuguqulwa yokongeza i-modulus ephezulu kunye namandla aphezulu endalo okanye iintsinga ezenziweyo kwipolymer, ngaloo ndlela iphucula kakhulu iimpawu zomatshini wemveliso. Ukuguqulwa kweekhemikhali zePVC kufezekiswa ngokuguqula isakhiwo sePVC ngokusebenzisa iikhemikhali ezithile.
2.Ukususwa kunye nokusetyenziswa kwe-hydrogen chloride
I-PVC iqulethe malunga ne-59% yeklorini. Ngokungafani nezinye iipolymers ze-carbon chain, i-chain chain ye-PVC iphula phambi kwekhonkco eliphambili ngexesha lokuqhaqha, ukuvelisa inani elikhulu legesi ye-hydrogen chloride, eya kutshabalalisa izixhobo, ityhefu ye-Catalyst poisoning, kwaye ichaphazele umgangatho weemveliso eziqhekezayo. Ngoko ke, unyango lokususa i-hydrogen chloride kufuneka lwenziwe ngexesha lokuqhekeka kwePVC.
3.Ukutshisa iPVC ukusebenzisa ubushushu kunye negesi yeklorin
Kwiplastiki yenkunkuma equlethe i-PVC, uphawu lokuvelisa ubushushu obuphezulu ngokuqhelekileyo lusetyenziselwa ukuxuba kunye nenkunkuma eyahlukeneyo enokutsha kunye nokuvelisa amafutha aqinileyo kunye nobukhulu bamasuntswana afanayo. Oku akuncedi kuphela ukugcina kunye nokuthutha, kodwa kwakhona kuthatha indawo ye-fuel esetyenziswa kwiibhoyila zokutshisa amalahle kunye ne-industrial kilns, kwaye i-dilutes chlorine ukuphucula ukusebenza kakuhle kwe-thermal.