Labarai

An kalubalanci amfani da robobin roba da aka samu daga man fetur saboda sanannun al'amurran da suka shafi gurbatar yanayi. Neman albarkatun carbon da za a sabunta a matsayin madadin ya zama mahimmanci da gaggawa. Polylactic acid (PLA) an yi la'akari da ko'ina a matsayin yuwuwar madadin maye gurbin kayan tushen man fetur na al'ada. A matsayin albarkatun da za a iya sabuntawa da aka samo daga biomass tare da kaddarorin injina masu dacewa, ingantaccen yanayin rayuwa, da lalacewa, PLA ta sami haɓakar kasuwa mai fashewa a cikin robobin injiniya, kayan aikin likitanci, yadi, aikace-aikacen marufi na masana'antu. Duk da haka, ƙarancin juriya na zafi da ƙarancin ƙarfi suna iyakance kewayon aikace-aikacen sa.

Narkewar polylactic acid (PLA) da elastomer silicone polyurethane (TPSiU) an yi su don ƙarfafa PLA.

Sakamakon ya nuna cewa TPSiU an haɗa shi da kyau cikin PLA, amma babu wani abin da ya faru. Bugu da ƙari na TPSiU ba shi da wani tasiri mai tasiri akan zafin canjin gilashin da zafin narke na PLA, amma dan kadan ya rage crystallinity na PLA.

Halin halittar jiki da sakamakon binciken injiniya mai ƙarfi ya nuna rashin daidaituwar yanayin zafi tsakanin PLA da TPSiU.

Nazarin halayen rheological ya nuna cewa PLA/TPSiU narke yawanci ruwan pseudoplastic ne. Yayin da abun ciki na TPSiU ya karu, bayyanar danko na PLA/TPSiU blends ya nuna yanayin tasowa da farko sannan kuma faduwa. Ƙarin TPSiU yana da tasiri mai mahimmanci akan kayan aikin injiniya na PLA/TPSiU blends. Lokacin da abun ciki na TPSiU ya kasance 15 wt%, haɓakawa a karyar haɗin PLA / TPSiU ya kai 22.3% (sau 5.0 na PLA mai tsabta), kuma ƙarfin tasirin ya kai 19.3 kJ / m2 (sau 4.9 na PLA mai tsabta), yana ba da shawarar tasiri mai ƙarfi.

Idan aka kwatanta da TPU, TPSiU yana da mafi kyawun tasiri akan PLA a gefe guda kuma mafi kyawun juriya na zafi a daya bangaren.

Duk da haka,SILIKE SI-TPVƙwararriyar ƙwaƙƙwarar ƙwaƙƙwarar ma'aunin thermoplastic Silicone na tushen elastomers. Ya jawo damuwa da yawa saboda yanayin sa tare da taɓawa na musamman da siliki da fata, kyakkyawan juriya mai tarin datti, juriya mafi kyau, ba ya ƙunshi filastik mai laushi da mai laushi, babu zub da jini / m haɗari, babu wari.

Hakanan, mafi kyawun tasiri akan PLA.

Wannan keɓaɓɓen kayan aminci da aminci na yanayi, yana ba da kyakkyawan haɗin kaddarorin da fa'idodi daga thermoplastics da cikakken ƙetaren silicone roba. ya dace da saman sawa, robobin injiniya, kayan aikin likitanci, yadi, aikace-aikacen marufi na masana'antu.

Bayanan sama, an cire su daga polymers (Basel). 2021 Yuni; 13 (12): 1953., Ƙarfafa Canjin Polylactic Acid ta Thermoplastic Silicone Polyurethane Elastomer. kuma, Super Tauri Poly (Lactic Acid) Yana Haɗa Cikakken Bita” (RSC Adv., 2020,10,13316-13368)