Ibikoresho bya polymer nibintu bya polymer bifite imyenge myinshi ikorwa na gaze ikwirakwizwa mubintu bya polymer.
Iyi miterere idasanzwe ni nziza cyane mugukoresha ibikoresho bikurura amajwi, gutandukana na adsorption, ibiyobyabwenge bikomeza kurekurwa, amagufwa yamagufa nizindi nzego.
Ibikoresho gakondo, nka polypropilene na polyurethane, ntabwo byoroshye guteshwa agaciro no gufata peteroli nkibikoresho fatizo, bizatera umwanda ibidukikije.
Kubwibyo, abantu batangiye kwiga ibinyabuzima bishobora kwangirika.
Gushyira mu bikorwa ibikoresho bya PLA bifunguye:
Ibikoresho bya PLA bifungura kandi bifite imbogamizi, bigabanya imikoreshereze yabyo mubikoresho bifunguye, nka:
1. Imyenda ihindagurika, imbaraga nke zingana no kubura elastique yibikoresho byasobekeranye.
2. Igipimo cyo gutinda buhoro.
Iyo usize mumubiri igihe kirekire nkibiyobyabwenge, birashobora gutera uburibwe.
3. Kuramo.
Kuba hafi ya selile, iyo bikozwe mumagufa yubukorikori cyangwa selile scafold biragoye kubyubahiriza no kwiyongera.
Mu rwego rwo kunoza ibitagenda neza by’ibikoresho bya PLA bifunguye, kuvanga, kuzuza, gukoporora hamwe n’ubundi buryo byakoreshejwe kugira ngo PLA ifungure umwobo.
Ibikurikira nuburyo bwinshi bwo guhindura PLA:
1.PLA / PCL ivanga guhindura
PCL, cyangwa polycaprolactone, nayo ni ibikoresho biodegradable hamwe na biocompatibilité nziza, gukomera nimbaraga zikomeye.
Kwivanga na PLA birashobora kunoza neza ubukana bwimbaraga za PLA.
Abashakashatsi basanze imitungo ishobora kugenzurwa no kugenzura igipimo cya PCL na PLA.Iyo igipimo rusange cya PLA na PCL cyari 7: 3, imbaraga zingana na modulus yibikoresho byari hejuru.
Ariko, ubukana buragabanuka no kwiyongera kwa diameter.
Ibikoresho bya PLA / PCL ntabwo ari uburozi kandi bifite ubushobozi bushobora gukoreshwa mubice bito bya diameter.
2.PLA / PBAT ivanga impinduka
PBAT ni ibintu byangirika, bifite kwangirika kwa alifatique polyester hamwe nuburemere bwa polyester aromatic.Ubugome bwa PLA burashobora kunozwa nyuma yo kuvanga na PLA.
Ubushakashatsi bwerekana ko hamwe no kwiyongera kwibirimo bya PBAT, ubukana bwibikoresho bifunguye bigabanuka (ububobere ni bwinshi iyo PBAT iba 20%), kandi kurambura kuvunika kwiyongera.
Igishimishije, nubwo kongeramo PBAT bigabanya imbaraga zingutu za PLA, imbaraga za PLA ziracyiyongera mugihe zitunganijwe mubintu bifunguye.
3.PLA / PBS ivanga guhindura
PBS ni ibinyabuzima bishobora kwangirika, bifite imiterere yubukanishi, kurwanya ubushyuhe bwiza, guhinduka no gutunganya, kandi byegereye cyane ibikoresho bya PP na ABS.
Kuvanga PBS na PLA birashobora kunoza ubwitonzi nibikorwa bya PLA.
Nk’ubushakashatsi, iyo igipimo rusange cya PLA: PBS cyari 8: 2, ingaruka zose zabaye nziza;niba PBS yongewemo birenze, ububobere bwibikoresho bifunguye byagabanuka.
4.PLA / BIOactive ikirahure (BG) yuzuza impinduka
Nkibikoresho byibirahure bya bioaktique, BG igizwe ahanini na silisiyumu sodium calcium calcium fosifore oxyde, ishobora kuzamura imiterere yubukorikori hamwe na bioactivite ya PLA.
Hamwe no kwiyongera kwa BG, modulus ya tensile yibikoresho bifunguye byiyongereye, ariko imbaraga zingana no kurambura kuruhuka byagabanutse.
Iyo ibirimo BG ari 10%, ububobere bwibikoresho bifunguye ni byo hejuru (87.3%).
Iyo ibikubiye muri BG bigeze kuri 20%, imbaraga zo kwikuramo ibice ni byinshi.
Byongeye kandi, PLA / BG igizwe nibintu byinshi bishobora gushira osteoid apatite igorofa hejuru no imbere mumazi yumubiri wigana, bishobora gutera amagufwa kuvugurura.Kubwibyo, PLA / BG ifite ubushobozi bwo gukoreshwa mubikoresho byamagufwa.
Igihe cyo kohereza: 14-01-22