Siffofin Filament ɗin Polypropylene da aka Ƙarfafa da Fiber ɗin Gilashi da aka Sake Yin Amfani da su daga Kayan Kamun Kifi

2.1. Kayan Aiki

• vPP-GF: Sabon polypropylene da aka ƙarfafa da fiber ɗin gilashi.
• rPP-GF: Abu da aka haɗa daga sake yin amfani da polypropylene (wanda aka samo daga tarun kamun kifi/igiyoyi) da sabbin fiber ɗin gilashi.

2.2. Hanyoyin Gwaji

• Differential Scanning Calorimetry (DSC): Don bincika wurin narkewa ($T_m$), wurin ƙanƙara ($T_c$), da ƙanƙancin ƙanƙara.
• Gwajin Tsawaitawa (Tensile Testing): Don auna ƙarfin tsawaitawa na ƙarshe (UTS) da matsi a lokacin karyewa ($\epsilon$).
• Gwajin Tasiri na Charpy (Charpy Impact Test): Don kimanta juriya ga tasiri da ƙarfi.

3.1. Siffofin Zafi

Binciken DSC ya nuna cewa abin da aka sake yin amfani da shi (rPP-GF) ya nuna mafi girman wurin narkewa ($T_m$) da wurin ƙanƙara ($T_c$) idan aka kwatanta da sabon abu (vPP-GF). Wannan yana nuna cewa rPP-GF yana da yuwuwar samun mafi girman matakin ƙanƙancin ƙanƙara, wanda zai iya rinjayar ƙarfin injiniya da kwanciyar hankali na zafi.

3.2. Siffofin Injiniya

Sakamakon gwajin tsawaitawa ya nuna bayanin aikin da ya dace:

• rPP-GF: Ya nuna mafi girman ƙarfin tsawaitawa na ƙarshe (UTS), ma'ana zai iya jurewa mafi girman matsi kafin ya gaza.
• vPP-GF: Ya nuna mafi girman matsi a lokacin karyewa, yana nuna mafi girman ductility ko ikon lalacewa kafin karyewa.

Wannan musayar tsakanin ƙarfi da ductility ya zama ruwan dare a cikin abubuwan da aka haɗa kuma yana ba da labarin yuwuwar dacewa ta musamman ga aikace-aikace.

3.3. Binciken Gurbataccen Abun Ciki

Wani muhimmin binciken shine yuwuwar kasancewar gurɓataccen HDPE da ba a bayyana ba a cikin abin da aka haɗa na rPP-GF. Wannan gurɓataccen abun ciki ya sanya fassarar sakamakon gwajin tasiri na Charpy ya zama mai sarƙaƙiya sosai, yana sa yanke shawara game da ƙarfin tasiri ya zama mai wahala. Wannan yana nuna babban ƙalubale a cikin hanyoyin sake yin amfani da su: rashin daidaiton tsaftar abincin da ake amfani da shi.

5.1. Bincike na Asali: Mataki Mai Ma'ana a cikin Yaƙi Mai Sarƙaƙiya

Wannan binciken na Russell lamari ne mai ƙarfi, mai dogaro da bayanai a cikin ka'idojin tattalin arzikin da'ira da aka yi amfani da su, amma dole ne a duba shi ta hanyar hangen nesa mai ma'ana. Babban binciken - cewa za a iya sake yin amfani da PP na kayan kamun kifi zuwa wani abu (rPP-GF) tare da siffofin injiniya masu kama da, kuma a wasu lokuta sun fi, takwarorinsu na asali - yana da mahimmanci. Yana ƙalubalantar zato kai tsaye cewa abubuwan da aka sake yin amfani da su ba su da ƙarfi a asalinsu. Mafi girman ƙanƙancin ƙanƙara da ƙarfin tsawaitawa na rPP-GF yana nuna cewa tsarin sake yin amfani da su ko kasancewar gurɓataccen abun ciki (kamar HDPE) na iya haifar da canje-canje masu kyau na siffar, wani abu da aka lura a cikin wasu binciken sake yin amfani da polymer inda yanke sarkar zai iya haifar da sake ƙanƙara.

Duk da haka, hazakar binciken ta ta'allaka ne a cikin fallasa ainihin aibinsa: "akwatin baƙar fata" na abincin da ake amfani da shi. Gurɓataccen HDPE da ba a bayyana ba shi ne giwa a cikin daki. Yana sa bayanan tasirin Charpy kusan ba su da amfani kuma yana zama tunatarwa mai ƙarfi cewa hanyoyin magance fasaha suna da kyau kamar yadda sassan wadatar suke ciyar da su. Kamar yadda aka haskaka a cikin rahotannin Ellen MacArthur Foundation akan da'ira, gano abun da ke ciki da tsaftar abu ba za a iya yin shawarwari ba don aikace-aikace masu daraja. Wannan binciken yana tabbatar da ra'ayin a cikin dakin gwaje-gwaje amma a lokaci guda yana gano babban shingen ma'auni: rashin daidaiton abun da ke cikin magudanar ruwa.

Idan aka kwatanta wannan da ci gaba a wasu fagage, kamar amfani da Cibiyoyin Adawa na Halitta (GANs) a cikin kimiyyar kayan aiki (misali, hasashen siffofin polymer daga tsari, kamar yadda aka bincika a cikin ayyuka kamar "Materials Informatics with Deep Learning"), tsalle na gaba a nan ba kawai a cikin tsarin haɗin gwiwa ba ne amma a cikin zaɓi mai hankali. Gudunmawar fasaha tana da ƙarfi amma tana ƙaruwa; ainihin fahimta shine siginar kasuwa. Yana nuna wa masu kera filament da ofisoshin sabis na buga 3D cewa buƙatar abubuwan daɗaɗɗa yana wanzu, kuma aikin yana da yuwuwar, muddin an iya warware wasan motsa jiki na sarrafa sharar gida. Binciken ba kawai ya gabatar da sabon abu ba; yana zayyana muhimmin hanya ga masana'antu: saka hannun jari a cikin AI na zaɓi (kamar tsarin da AMP Robotics ke amfani da su) da gano spectroscopic don rufe madauki da aminci.

5.2. Tsarin Fasaha & Lamarin Bincike

Tsarin Bincike: Matrix na Musayar Aikin Kayan Aiki

Don kimanta kayan aiki kamar vPP-GF da rPP-GD don takamaiman aikace-aikace, zamu iya amfani da matrix na yanke shawara dangane da mahimman kofofin kadarori. Wannan tsarin bincike ne wanda ba na lamba ba.

Misalin Lamari: Zaɓar Filament don Bracket na Aiki

1. Ayyana Bukatun Aikace-aikace:
   • Bukata ta Farko: Babban ƙarfi da ƙarfin ɗaukar kaya (Ƙarfin Tsawaitawa > X MPa).
   • Bukata ta Biyu: Matsakaicin juriya ga kaya kwatsam (Ƙarfin Tasiri).
   • Bukata ta Uku: Kwanciyar hankali na girma yayin bugawa (mai alaƙa da siffofin zafi).
2. Zana Taswirar Siffofin Kayan Aiki:
   • rPP-GF: Babban Ƙarfin Tsawaitawa, Ƙarfin Tasiri mara tabbas, Babban $T_m$/$T_c$.
   • vPP-GF: Ƙaramin Ƙarfin Tsawaitawa, Mafi girman Ductility, Ƙananan $T_m$/$T_c$.
3. Aiwatar da Hankalin Yanke Shawara:
   • Idan ainihin buƙata (babban ƙarfi) ita ce mafi mahimmanci kuma tasiri ƙaramin damuwa ne, rPP-GF shine zaɓin da aka fi so duk da rashin tabbas na bayanai, saboda ya cika mahimmin kofa.
   • Idan ɓangaren yana buƙatar lalacewa mai mahimmanci ba tare da karyewa ba, vPP-GF ya fi kyau.
   • Mafi girman kwanciyar hankali na zafi na rPP-GF na iya fifita shi don sassan da ke buƙatar juriya ga zafi.

Wannan tsarin yana nuna cewa "mafi kyau" ya dogara ne akan aikace-aikace. Bayanan binciken suna ba da damar irin wannan zaɓi mai zurfi, suna motsawa fiye da muhawarar "sake yin amfani da su da sabo" mai sauƙi.