izindaba

Njengoba sibhekene nenkinga enkulu yokungcola kwemvelo, ukuqwashisa ngokuvikelwa kwemvelo komphakathi kuye kwanda kancane kancane, kanti nomkhuba wokusebenzisa izinto zemvelo nawo uye wavuthwa. Ukusetshenziswa kwamandla okunobungani nemvelo, okulula, kanye nezici ezivuselelekayo zemicu yezitshalo kuye kwadonsela ukunaka okukhulu. Kuzonqunywa esikhathini esizayo esibonakalayo Kuzoba nezinga eliphezulu lentuthuko. Kodwa-ke, i-fibre yezitshalo iyinto ehlukahlukene enokwakheka nesakhiwo esiyinkimbinkimbi, futhi ubuso bayo buqukethe amaqembu e-hydroxyl aphilic. Ukusondelana ne-matrix kudinga ukwelashwa okukhethekile ukuze kuthuthukiswe izakhiwo ze-composite. Imicu yezitshalo isetshenziselwa izinto ezihlanganisiwe, kodwa iningi layo likhawulelwe kuma-fibre amafushane kanye nemicu engaqhubeki. Izakhiwo ezinhle kakhulu zokuqala azikasetshenziswa ngokugcwele, futhi zisetshenziswa kuphela njengezigcwalisi. Uma singangenisa ubuchwepheshe bokuluka, kuyisisombululo esihle. Ama-preforms olukiwe ngemicu yezitshalo anganikeza izinketho eziningi zokusebenza zezinto ezihlanganisiwe, kodwa okwamanje asetshenziswa kancane futhi afanele ucwaningo olwengeziwe kanye nentuthuko. Uma singacabanga kabusha ngendlela yendabuko yokusebenzisa ifayibha, futhi sethule imiqondo yesimanje yobuchwepheshe obuhlanganisiwe ukuze siyithuthukise, sithuthukise izinzuzo zokusebenzisa futhi sithuthukise ukushiyeka okukhona, izokwazi ukunikeza ifayibha yezitshalo inani elisha kanye nokusetshenziswa kwayo.

I-fibre yezitshalo ibilokhu ingahlukanisiwe nokuphila kwansuku zonke komuntu. Ngenxa yezici zayo ezilula nezivuselelekayo, i-fibre yezitshalo isibe yinto ebalulekile empilweni yomuntu. Kodwa-ke, ngokuthuthuka kobuchwepheshe kanye nokukhula kwemboni yamakhemikhali kaphethiloli, imicu eyenziwe ngabantu kanye nepulasitiki kuye kancane kancane kwathatha indawo yemicu yezitshalo njengezinto ezivamile ngenxa yezinzuzo zobuchwepheshe bokukhiqiza obuthuthukisiwe kakhulu, ukuhlukahluka kwemikhiqizo kanye nokuqina okuhle. Kodwa-ke, uphethiloli awuyona imithombo evuselelekayo, futhi izinkinga zokulahla imfucuza ezibangelwa ukulahlwa kwemikhiqizo enjalo kanye nenani elikhulu lokukhishwa kokungcola ngesikhathi senqubo yokukhiqiza kubangele abantu ukuthi bacabange kabusha ngokusetshenziswa kwezinto. Ngaphansi komkhuba wokuvikelwa kwemvelo kanye nokusimama, imicu yezitshalo zemvelo ibuye yathola ukunakwa. Eminyakeni yamuva nje, izinto ezihlanganisiwe ezisebenzisa imicu yezitshalo njengezinto zokuqinisa seziqalile ukuthola ukunakwa.

I-fibre yezitshalo kanye nenhlanganisela

Isakhiwo esihlanganisiwe singaklanywa yinqubo yokukhiqiza. I-fiber egoqwe nge-matrix inikeza ukuma okuphelele nokuqondile kwezinto ezibonakalayo, futhi ivikela i-fiber ekuwohlokeni ngenxa yethonya lemvelo, futhi isebenza njengebhuloho lokudlulisa ukucindezeleka phakathi kwezintambo; kuyilapho i-fiber ithwala iningi lamandla angaphandle ngezakhiwo zayo ezinhle kakhulu zemishini futhi ingadlula. Ukuhlelwa okuthile kufeza imisebenzi ehlukene. Ngenxa yobuningi bayo obuphansi namandla aphezulu, i-fiber yezitshalo ingathuthukisa izakhiwo zemishini futhi igcine ubuningi obuphansi uma yenziwe ibe yi-FRP composites. Ngaphezu kwalokho, izintambo zezitshalo ikakhulukazi ziyi-plant cell aggregates, futhi imigodi kanye nezikhala ezikuyo zingaletha izakhiwo ezinhle kakhulu zokuvimbela ukushisa ezintweni ezibonakalayo. Uma ubhekene namandla angaphandle (njengokudlidliza), izuza futhi ku-porosity yayo, okuvumela amandla ukuthi anyamalale ngokushesha. Ngaphezu kwalokho, inqubo ephelele yokukhiqiza i-fiber yezitshalo ikhipha ukungcola okuncane futhi isebenzisa amakhemikhali amancane, inokushisa okuphansi kokusebenza, inenzuzo yokusetshenziswa kwamandla aphansi, kanye nezinga lokuguguleka kwemishini ngesikhathi sokucubungula nalo liphansi; ngaphezu kwalokho, i-fiber yezitshalo iyizici zemvelo Ezivuselelekayo, ukukhiqizwa okusimeme kungatholakala ngaphansi kokuphathwa nokulawulwa okunengqondo. Ngosizo lobuchwepheshe besimanje, ukubola kanye nokumelana nesimo sezulu kwezinto kuye kwalawulwa kahle, ukuze zibole ngemva komjikelezo wokuphila komkhiqizo, ngaphandle kokubangela ukuqongelela kwemfucuza, kanti ikhabhoni ekhishwa ukubola nayo itholakala ekukhuleni kokuqala. Umthombo wekhabhoni emkhathini ungaba ongathathi hlangothi kwekhabhoni.