Kev siv hluavtaws plastics muab tau los ntawm roj av yog cov nyom vim yog cov teeb meem zoo ntawm cov kuab paug dawb. Nrhiav cov khoom siv tshiab txuas ntxiv raws li lwm txoj kev xaiv tau ua ib qho tseem ceeb heev thiab maj nrawm. Polylactic acid (PLA) tau txiav txim siab dav dav tau txiav txim siab los hloov cov roj av cov roj av. Raws li cov khoom siv dua tshiab tau muab los ntawm biomass nrog cov khoom tsim nyog, thiab kev ua haujlwm zoo, cov ntaub ntawv biomedicity, textile, textile, muaj ntim cov ntawv thov. Txawm li cas los xij, nws cov cua sov qis tsis kam thiab qis nruj heev txwv nws cov kev siv.
Cov txiv hmab polylactic acid (pla) thiab thermopastic silicone silicone polyurethane (TPSIU) Elastehane tau ua rau cov pla ua kom nruj.
Cov txiaj ntsig tau pom tias TPSiu tau sib xyaw ua ke rau hauv cov lus cog, tab sis tsis muaj tshuaj lom neeg tshwm sim. Qhov kev sib ntxiv ntawm tpsiu tsis muaj qhov pom tseeb ntawm lub iav hloov cua kub thiab melting kub ntawm pla, tab sis me ntsis txo cov crystallinity ntawm PLA.
Cov morphology thiab dynamic neeg kho kom pom qhov tseeb thermodynamic sib xyaw ntawm PLA thiab TPSiu.
Rheological kev tshawb fawb pom tau pom tias pla / tppsiu melt yog feem ntau pseudoplastic kua. Raws li cov ntsiab lus ntawm tpsiu nce, lub meej viscosity ntawm pla / tpporiu blends qhia ib tug qauv ntawm nce qib ua ntej thiab tom qab ntawd ntog. Qhov kev sib ntxiv ntawm tpsiu tau muaj cov nyhuv tseem ceeb ntawm cov khoom siv tshuab ntawm PLA / TPSiu combated. Thaum cov ntsiab lus ntawm tpsiu tau 15 wt%, lub elongation ntawm tawg mus txog rau xyoo 19.3 kj / m2 (4.9 lub sij hawm uas ntawm pla ntshiab), hais txog cov nyhuv ntshiab.
Piv nrog TPU, TPSIU muaj cov nyhuv zoo dua rau ntawm cov pla ntawm ib sab tes thiab zoo dua kub tsis kam rau ntawm qhov tod tes.
Txawm li cas los xij,Silike si-tpvyog patented dynasamized thermopastic silicone-beded elastomers. Nws tau kos ntau kev txhawj xeeb vim nws cov nplaim dej nrog cov roj hmab sib txawv, tsis muaj roj ntxiv thiab ua kom tawg, tsis muaj ntshav, tsis muaj ntxhiab.
Raws li, zoo ua kom zoo ua rau cov nyhuv ntawm PLA.
Qhov no tshwj xeeb cov khoom muaj kev nyab xeeb thiab ib puag ncig zoo, muab kev sib xyaw ua ke zoo thiab muaj txiaj ntsig los ntawm thermoplecastics thiab tag nrho cov roj hmab silicone. Cov khaub ncaws hnav rau cov ntoo uas hnav tau, engineering uas ua kom zoo nkauj, cov ntaub ntawv biomedical, textile, muaj ntim cov ntawv thov.
Cov ntaub ntawv saum toj no, excerpted los ntawm polymers (basel). 2021 Jun; 13 (12): 1953., Kev hloov kho cov kua qaub polylactic los ntawm thermopastic silicone polyurethane elastomer. Thiab, super tawv poly (lactic acid) blends ib qho kev ntsuam xyuas "(RSC Adv., 2020,10,13316-13368)
Lub Sijhawm Post: Jul-08-2021
