Cov roj carbon fiber reinforced polypropylene composite
Cov roj carbon fiber muaj peev xwm nce lub modulus ntawm elasticity ntawm polypropylene, tab sis txo lub zog tensile, feem zog thiab elongation ntawm so ntawm cov khoom. Cov fiber ntau muaj qee cov heterogeneous nucleation cov nyhuv rau cov polypropylene, uas pab txhawb cov non-isothermal crystallization ncov kub thiab cov khoom zoo ntawm cov polypropylene matrix, thiab txhawb nqa tus tsim ntawm β siv lead ua nyob rau hauv cov thawv ntawv PP. Thaum lub sij hawm isothermal crystallization, polypropylene nyhav rau nucleate thiab crystallize kawg ntawm cov roj fiber ntau.
Lub dispersion ntawm EPDM-g-MAH thiab SEBS-g-MAH hauv PP matrix zoo dua, uas ua rau lub zog zoo thiab elongation ntawm tawg ntawm PP significantly improved. PP ntxiv rau EPDM-g-MAH thiab SEG-G-MAH / CF composites muaj qhov sib zog muaj zog thiab modulus ntawm elasticity.
Qhov sib ntxiv ntawm tus toughening agent hauv PP / CF cov ntsiab lus tau ua rau tus thawj txo ntawm kev muaj peev xwm ntawm cov qauv polypropylene thiab tus thawj txo ntawm kev siv lead ua kev loj hlob. Toughening tus neeg sawv cev tsis hloov pauv cov ntaub ntawv ntawm PP / CF ntawm crystalline. Lub nucleation ntawm cov roj fiber ntau hauv PP / CF khoom siv nrog tus neeg ua hauj lwm toughening tau pom tseeb, thiab cov kev sib tshuam hauv kev sib xyaw feem ntau tuaj ze ntawm carbon fiber.
Tuam Tshoj yuav tsum ceev cov kev tshawb fawb thiab kev loj hlob ntawm cov roj fiber ntau, siv zog ua kom cov kev lag luam muaj zog thiab cov cuab yeej siv, thiab txhim kho kev ua lag luam thiab txo cov nqi, kom lub teb chaws tus fiber ntau cov lag luam muaj peev xwm ua tiav txoj kev loj hlob; nyob rau tib lub sijhawm, nws tuaj yeem pab txhawb txoj kev loj hlob sai ntawm cov tsheb thiab lwm yam kev lag luam. kev loj hlob ntawm.
