Waa maxay hababka dib-u-warshadaynta balaastikada qashinka?

Waa maxay hababka dib-u-warshadaynta balaastikada qashinka?

Waxaa jira saddex hab oo dib-u-warshadaynta loo isticmaalo: 1. Daawaynta kuleyliyaha: Habkani waa in la kululeeyo oo la kala gooyo balaastikada qashinka oo laga dhigo saliid ama gaas, ama loo isticmaalo tamar ahaan ama dib loo isticmaalo hababka kiimikada si loo kala saaro alaabada petrochemical si loo isticmaalo.Habka dumanka kulaylku waa: polymer-ka ayaa depolymerizes heerkul sare, iyo silsiladaha molecular jejebi oo kala jajabaan molecules yar yar iyo monomers.Habka kala-goynta kulaylku wuu ka duwan yahay, badeecada ugu dambeysana way ka duwan tahay, taas oo noqon karta qaab monomer ah, miisaan yar oo unugyo ah, ama isku-dar ah hydrocarbons badan.Doorashada habka saliidaynta ama gaaska waa in lagu saleeyaa baahiyaha dhabta ah.Hababka loo isticmaalo waa: Nooca taangiga dhalaalidda (ee PE, PP, random PP, PS, PVC, iwm.), Mikrowave nooc (PE, PP, random PP, PS, PVC, iwm), nooca fur (loogu talagalay PE, PP). , PS, PMMA).Nooca uumiga tuubada (ee PS, PMMA), nooca sariiraha ebullating (loogu talagalay PP, random PP, cross-linked PE, PMMA, PS, PVC, iwm), nooca kala-goynta catalytic (ee PE, PP, PS, PVC, iwm. ).Dhibka ugu weyn ee balaastikada kuleyl ahaan u burburisa ayaa ah in balaastiigtu ay leeyihiin kuleyl kuleyl oo liita, taas oo ka dhigaysa warshadeynta kulaylka baaxadda weyn iyo dildilaaca kulaylka ay adagtahay in la fuliyo.Marka lagu daro burburka kulaylka, waxaa jira habab kale oo lagu daweeyo kiimikaad, sida dildilaaca kulaylka, hydrolysis, alkolysis, hydrolysis alkaline, iwm, kuwaas oo soo kabsan kara walxo kiimiko ah oo kala duwan.

2. Dib u warshadaynta dhalaalaysa Habkani waa in la kala saaro, la burburiyo, oo la nadiifiyo caagadaha wasakhda ah, ka dibna dhalaalin oo laga dhigo baco.Wixii qashinka ah iyo alaabta hadhaaga ah ee ka soo baxa dhirta wax-soo-saarka resin-ka iyo warshadaynta bacaha iyo warshadaynta, habkan waxaa loo isticmaali karaa in lagu soo saaro alaabooyin kala duwan oo tayo wanaagsan leh.Waa dhib in la kala saaro oo la nadiifiyo caagadaha qashinka ah ee bulshada loo isticmaalo, kharashkuna waa qaali.Guud ahaan waxaa loo isticmaalaa in lagu sameeyo alaab qallafsan iyo kuwa hooseeya.3. Dib-u-isticmaalka isku dhafan: Habkani waa in la jebiyo caagagga qashinka ah, sida PS xumbada, xumbo PU, iwm. oo la jarjaro qaybo cayiman, ka dibna lagu qaso dareerayaasha, xabagta, iwm si loo sameeyo looxyo iyo xargaha khafiifka ah.