Amakuru

Ikoreshwa rya plastiki yubukorikori ikomoka kuri peteroli irarwanywa kubera ibibazo bizwi cyane by’umwanda wera. Gushakisha umutungo wa karubone ushobora kuvugururwa byabaye ngombwa kandi byihutirwa. Acide Polylactique (PLA) yafashwe nkuburyo bushoboka bwo gusimbuza ibikoresho bisanzwe bikomoka kuri peteroli. Nkumutungo ushobora kuvugururwa ukomoka kuri biomass ifite imiterere yubukanishi bukwiye, ibinyabuzima bihuza neza, ndetse no kwangirika, PLA yagize iterambere ry’isoko riturika muri plastiki y’ubuhanga, ibikoresho by’ibinyabuzima, imyenda, ibikoresho byo gupakira inganda. Nyamara, ubushyuhe bwayo buke hamwe nubukomezi buke bugabanya cyane uburyo bukoreshwa.

Kuvanga gushonga kwa aside polylactique (PLA) hamwe na silopone ya silicone polyurethane (TPSiU) elastomer byakozwe kugirango PLA ikomere.

Ibisubizo byerekanaga ko TPSiU yahujwe neza muri PLA, ariko nta reaction yimiti yabayeho. Kwiyongera kwa TPSiU nta ngaruka zigaragara byagize ku bushyuhe bw’ikirahure n’ubushyuhe bwa PLA, ariko byagabanije gato kristu ya PLA.

Ibisubizo bya morphologie hamwe nimbaraga zisesengura ryibisubizo byerekanaga ububi bwa termodinamike hagati ya PLA na TPSiU.

Ubushakashatsi bwimyitwarire ya rheologiya bwerekanye ko gushonga kwa PLA / TPSiU byari amazi ya pseudoplastique. Mugihe ibikubiye muri TPSiU byiyongereye, ikigaragara kigaragara cyuruvange rwa PLA / TPSiU cyerekanaga inzira yo kuzamuka mbere hanyuma ikagwa. Kwiyongera kwa TPSiU byagize ingaruka zikomeye kumiterere yubukanishi bwa PLA / TPSiU. Iyo ibikubiye muri TPSiU byari 15 wt%, kurambura igihe cyo kuvanga uruvange rwa PLA / TPSiU byageze kuri 22.3% (inshuro 5.0 z'ubwa PLA isukuye), kandi imbaraga zingaruka zageze kuri 19.3 kJ / m2 (inshuro 4,9 z'ubwa PLA yera), byerekana ingaruka nziza yo gukomera.

Ugereranije na TPU, TPSiU ifite ingaruka nziza zo gukomera kuri PLA kuruhande rumwe no kurwanya ubushyuhe kurundi ruhande.

Ariko,SILIKE SI-TPVni ipatanti ifite imbaraga zo gutunga thermoplastique Silicone ishingiye kuri elastomers. Byakomeje guhangayikishwa cyane nubuso bwacyo hamwe no gukorakora bidasanzwe bya siliki kandi byangiza uruhu, kurwanya umwanda mwiza wo kurwanya umwanda resistance birwanya neza gushushanya, ntabwo birimo plasitike hamwe namavuta yoroshye, nta maraso / ibyago bifatika, nta mpumuro nziza.

Nka ,, ingaruka nziza zo gukomera kuri PLA.

Ibi bikoresho bidasanzwe bifite umutekano kandi bitangiza ibidukikije, bitanga uburyo bwiza bwimiterere ninyungu ziva muri thermoplastique hamwe na reberi ya silicone ihuza neza. ikositimu yubuso bushobora kwambarwa, plastiki yubuhanga, ibikoresho bya biomedical, imyenda, ibikoresho byo gupakira inganda.

Hejuru yamakuru, yakuwe muri Polymers (Basel). 2021 Jun; 13 (12): 1953., Guhindura Acide ya Polylactique na Thermoplastique Silicone Polyurethane Elastomer. na, Super Tough Poly (Acide Lactique) Ihuza Isubiramo Ryuzuye "Adv Umujyanama wa RSC, 2020,10,13316-13368）