Impendulo esisiseko yeekhemikhali ngexesha lokulamina ngaphandle kwe-solvent

Ngokuqhubeka nokuqhubela phambili kwetekhnoloji, i-solventless lamination yamkelwe ngabaninzi beephakheji eziguquguqukayo.

Iingenelo ze-lamination engenasinyibilikisi zikhawuleza, zilula, zinobuhlobo nokusingqongileyo, kwaye zingabizi kakhulu.

Kubaluleke kakhulu kuthi ukuba sazi indlela esisiseko yokusabela kwamakhemikhali ngexesha lokufakelwa kwe-lamination engenasombululo ukuze kuveliswe ngcono ubuninzi.

Izinto ezimbiniIglu engenasinyibilikisiyenziwe yi-polyurethane (PU), i-PU yadityaniswa yi-isocyanate(-NCO) ebizwa ngokuba yi-A component, kunye ne-polyol(-OH) ebizwa ngokuba yi-B component. Iinkcukacha zempendulo nceda ujonge apha ngezantsi;

Impendulo ephambili iphakathi kuka-A no-B, ii-NCO zine-chemical reaction kunye ne-OH, kwangaxeshanye, ngenxa yokuba amanzi aneqela elisebenzayo le-OH, amanzi aya kuba ne-chemical reaction kunye ne-A component ekhupha i-CO2₂,Ikhabhoni dayokhsayidi. Kunye ne-polyurea.

I-CO₂ inokubangela ingxaki yeqamza kwaye i-polyurea inokubangela isitywina sokuthintela ubushushu. Ngaphandle koko, ukuba umswakama uphezulu ngokwaneleyo, amanzi aya kusebenzisa i-A component eninzi kakhulu. Isiphumo kukuba i-glue ayinakunyangeka nge-100% kwaye amandla okubopha aya kwehla.

Ngamafutshane, sicebisa ukuba;

Indawo yokugcina iglu kufuneka igcinwe kwindawo epholileyo neyomileyo kude nokufuma

Indawo yokusebenzela kufuneka igcine umswakama uphakathi kwe-30% ~ 70%, kwaye isebenzise i-AC ukulawula ixabiso lomswakama.

Ngasentla kukho i-chemical reaction esisiseko phakathi kwe-component adhesives ezimbini, kodwa i-mono-component adhesive iya kwahluka ngokupheleleyo, siza kwazisa i-mono component chemical reaction kwixesha elizayo.