Ukuhlolwa kwelaphu:

Eli laphu linokuhlangabezana nomgangatho we-GB/T, umgangatho we-ISO, umgangatho we-JIS, umgangatho wase-US.Onke amalaphu aya kuhlolwa ngeepesenti ezili-100 ngaphambi kokuthunyelwa ngokwemigangatho yenkqubo yeengongoma ezine zaseMelika.

Lenziwa Njani Ilaphu Lelastane?

Iindlela ezine ezahlukeneyo ezinokusetyenziswa ukuvelisa eli laphu elastic: Reaction spinning, isisombululo sokusonta okumanzi, ukunyibilika kwe-extrusion, kunye nesisombululo esomileyo.Uninzi lwezi nkqubo zokuvelisa ziye zalahlwa njengezingasebenziyo okanye ziyinkcitho, kwaye isisombululo esomileyo sisetyenziselwa ukuvelisa malunga nama-95 epesenti yobonelelo lwespandex lwehlabathi.
Isisombululo esomileyo inkqubo yokujikeleza iqala ngokuveliswa kwe-prepolymer, esebenza njengesiseko se-elastane.Eli nyathelo lifezwa ngokuxuba i-macroglycol kunye ne-diisocyanate monomer ngaphakathi kohlobo olukhethekileyo lwesitya sokusabela.Xa iimeko ezifanelekileyo zisetyenziswa, ezi khemikhali zimbini zisebenzisana ukuze zenze i-prepolymer.Ubungakanani bomthamo phakathi kwezi zinto zimbini zibalulekile, kwaye kwiimeko ezininzi, i-glycol ukuya kwi-disocyanate ratio ye-1: 2 isetyenziswa.
Xa kusetyenziswa indlela eyomileyo yokusonta, le prepolymer iphinda ithathwe nge-diamine acid kwinkqubo eyaziwa ngokuba yi-chain extension reaction.Emva koko, esi sisombululo sihlanjululwa nge-solvent ukuze sibe mncinci kwaye kube lula ukuphatha, kwaye emva koko sifakwe ngaphakathi kwiseli yokuvelisa ifayibha.
Le seli ijikelezisa ukuvelisa imicu kunye nokunyanga imathiriyeli elastane.Ngaphakathi kule seli, isisombululo sityhalwa ngespinneret, esisixhobo esifana nentloko yeshawari enemingxuma emininzi emincinci.Le mingxunya zenza isisombululo zibe yimicu, kwaye le micu ifudunyezwa ngaphakathi kwisisombululo se-nitrogen kunye ne-solvent yegesi, ebangela ukusabela kwemichiza eyenza i-polymer engamanzi ibe yimisonto eqinileyo.
Imisonto ke idityaniswe kunye njengoko iphuma kwi-cylindrical spinning cell kunye nesixhobo somoya esicinezelweyo esijijayo.Ezi ntsinga zijijekileyo zinokwenziwa kwiinketho ezahlukeneyo zokutyeba, kwaye yonke ifayibha ye-elastane kwisinxibo okanye ezinye izinto ezenziwayo zenziwe ngemicu emininzi emincinci eye yadlula kule nkqubo yokujija.
Emva koko, i-magnesium stearate okanye enye i-polymer isetyenziselwa ukuphatha izinto ze-elastane njenge-ejenti yokugqiba, ethintela imicu ukuba ibambelele omnye komnye.Okokugqibela, le misonto ikhutshelwa kwi-spool, kwaye ilungele ukudaywa okanye ilukwe ibe yimicu.