II. Niki gikonjesha cya ice cream igikombe
Biodegradableice cream impapuroKugira kwangirika. Igabanya umutwaro kubidukikije. Irashobora kugabanya imyanda ikoresheje mikorobe yangirika no kuyitunganya. Iki gikombe cyimpapuro ni amahitamo arambye kandi yangiza ibidukikije. Itanga igisubizo kirambye ku nganda zokurya.
A. Ibisobanuro n'ibiranga
Ibicupa bya ice cream impapuro zibikombe ni ibikoresho byimpapuro bikozwe mubikoresho bibora. Binyura muburyo busanzwe bwo kwangirika mubidukikije. Ugereranije n'ibikombe bya plastiki gakondo, ibikombe byimpapuro biodegradable bifite ibiranga bikurikira:
1. Kurengera ibidukikije. PLA yangiritseice creambikozwe mu bimera. Rero, irashobora kubora mubidukikije. Ibi birashobora kugabanya umwanda ku bidukikije. Ifite ingaruka nziza mukurengera ibidukikije byisi.
2. Kuvugururwa. PLA ikozwe mubikoresho bishobora kuvugururwa, nkibinyamisogwe. Ugereranije na plastiki ya peteroli, inzira yo kubyaza umusaruro PLA ifite ingufu nke hamwe n’ibyuka bihumanya ikirere. Ifite uburambe burambye.
3. Gukorera mu mucyo. Ibikombe byimpapuro za PLA bifite transparency nziza. Ibi birashobora kwerekana neza ibara nigaragara rya ice cream. Irashobora kuzamura abakiriya kwishimisha. Byongeye kandi, ibikombe byimpapuro birashobora kuba byihariye kandi bigahinduka. Ibi biha abacuruzi amahirwe menshi yo kwamamaza.
4. Kurwanya ubushyuhe. Ibikombe byimpapuro za PLA bifite imikorere myiza. Irashobora kwihanganira ibiryo ku bushyuhe runaka. Iki gikombe cyimpapuro kirakwiriye cyane gufata ibiryo bikonje kandi bishyushye nka ice cream.
5. Umucyo woroshye kandi ushikamye. Ibikombe byimpapuro za PLA biroroshye cyane kandi byoroshye gutwara no gukoresha. Hagati aho, ibikombe byimpapuro za PLA bikozwe muburyo budasanzwe bwo gukora impapuro. Ibi bituma imiterere yacyo ikomera kandi idakunda guhinduka no kuvunika.
6. Icyemezo mpuzamahanga. Ibikombe bya PLA byujuje ubuziranenge mpuzamahanga bwo kwemeza ibidukikije. Kurugero, urwego rwiburayi EN13432 rusanzwe rwibinyabuzima hamwe na ASTM D6400 yo muri Amerika. Ifite ibyiringiro byiza.
B. Ibinyabuzima bigenda byangiza ibikombe byimpapuro
Iyo ibikombe bya ice cream byangirika bya PLA byajugunywe, ibikurikira ningingo zirambuye zijyanye no kwangirika kwabo:
Ibintu byingenzi bitera ibikombe byimpapuro za PLA kubora mubidukikije ni ubuhehere nubushuhe. Ku butumburuke n'ubushyuhe buringaniye, igikombe cy'impapuro kizatangira inzira yo kubora.
Ubwoko bwa mbere ni hydrolysis. Uwitekaigikombeitangira inzira ya hydrolysis iyobowe nubushuhe. Ubushuhe hamwe na mikorobe byinjira muri micropores no gucikamo igikombe cyimpapuro kandi bigakorana na molekile ya PLA, biganisha kumubiri.
Ubwoko bwa kabiri ni hydrolysis enzymatique. Enzymes ni catalizike ya biohimiki ishobora kwihuta kubora. Enzymes ziboneka mubidukikije zirashobora guhagarika hydrolysis yibikombe byimpapuro. Igabanya polymers ya PLA mo molekile nto. Iyi molekile ntoya izagenda ishonga buhoro buhoro mubidukikije kandi irusheho kubora.
Ubwoko bwa gatatu ni mikorobe ibora. Ibikombe byimpapuro za PLA birashobora kubora kuko hariho mikorobe nyinshi zishobora kubora PLA. Izi mikorobe zizakoresha PLA nk'ingufu kandi zijugunye muri dioxyde de carbone, amazi, na biomass binyuze mu kubora no kubora.
Igipimo cyo gutesha agaciro ibikombe byimpapuro za PLA biterwa nibintu byinshi. Nkubushuhe, ubushyuhe, imiterere yubutaka, nubunini nubunini bwibikombe byimpapuro.
Muri rusange, ibikombe byimpapuro za PLA bisaba igihe kirekire kugirango biteshwe neza. Igikorwa cyo gutesha agaciro ibikombe byimpapuro za PLA mubisanzwe bibaho mubikoresho byo gufumbira inganda cyangwa ibidukikije bisanzwe. Muri byo, ibintu bifasha ubushuhe, ubushyuhe, n'ibikorwa bya mikorobe. Mu myanda yo mu rugo cyangwa ibidukikije bidakwiriye, igipimo cyayo cyo kwangirika gishobora gutinda. Rero, mugihe ukoresha ibikombe byimpapuro za PLA, bigomba kwemezwa ko bishyirwa muburyo bukwiye bwo gutunganya imyanda. Ibi birashobora gutanga ibihe byiza byo gutesha agaciro.