Alaabta

Isku darka polypropylene (PP) iyo polyamide 6 (PA6) oo leh kaarboon nanotubes-ka-dhalalan (MWNTs) ayaa la diyaariyey iyadoo la adeegsanayo xeelado habaysan oo kala duwan oo ah isku-darka-yar ee mataanaha ah.Saamaynta MWNTs ee habdhaqanka crystallization ee wajiga PP iyo wajiga PA6 ee isku dhafka ah ayaa lagu baadhay daraasado aan-soothermal ahayn oo lagu sameeyay falanqaynta calorimetric scanning kala duwan.Intaa waxaa dheer, saameynta ku darida compatibilizer (PP-g-MA) iyo wax ka beddelka MWNTs (m-MWNTs) oo leh wax-beddele dabiici ah oo aan koofiyad lahayn (Li-salt of 6 amino hexanoic acid, Li-AHA) ayaa sidoo kale leh. lagu bartay macnaha guud ee habdhaqanka crystallization ee PP iyo PA6 ee isku darka.Daraasadaha crystallization-ku waxay muujiyeen koror weyn oo ku yimid heerkulka kristallization-ka ee wejiga PP ee isku darka joogitaanka MWNTs.Waxaa intaa dheer, samaynta qaab-dhismeedka 'trans-lamellar crystalline' oo ka kooban PA6 'trans-crystalline lamellae' oo ku yaal dusha MWNTs ayaa la fududeeyay xaaladda isku dhafka ah ee lagu diyaariyey 'protocol 2' marka la barbar dhigo isku-dhafka u dhigma ee loo diyaariyey 'protocol 1' .Falanqaynta kala-duwanaanta xagasha ballaadhan ee raajada ayaa muujisay jiritaanka β-polymorph ee wejiga PP sababtoo ah ku daridda wajiga PA6 ee isku dhafka ah.Ku darida MWNT-yada isku-dhafka ah ayaa fududeeyay qaab dhismeedka β-crystalline dheeraad ah ee samaynta wajiga PP.Joogitaanka m-MWNTs, β-jajab sare ayaa lagu arkay marxaladda PP marka la barbar dhigo isku dhafka MWNT-yada saafiga ah.Ku darida PP-g-MA waxay xakamaysay samaynta β-wejiga wajiga PP ee isku dhafka.Falanqaynta raajada bulk waxay daaha ka qaaday in isku darka PA6 iyo sidoo kale MWNT-yada saafiga ah/wax laga beddelay ay saameyn ku yeesheen heerka jihaynta silsiladaha PP ee ku wajahan diyaarado crystalline ah oo isku dhafan oo kala duwan oo PP iyo PA6 ah.