Njira Zofunikira Zowonjezerera Mphamvu Yogwirizanitsa Pakati pa Ma Fiberglass Composites

Mu zinthu zopangidwa ndi zinthu zosiyanasiyana, momwe fiberglass imagwirira ntchito ngati chinthu chofunikira cholimbitsa thupi zimadalira kwambiri mphamvu yolumikizirana pakati pa ulusi ndi matrix. Mphamvu ya mgwirizanowu imatsimikizira mphamvu yotumizira kupsinjika pamene ulusi wagalasi uli pansi pa katundu, komanso kukhazikika kwa ulusi wagalasi pamene mphamvu yake ili pamwamba. Kawirikawiri, mgwirizano wa pakati pa fiberglass ndi zinthu zopangidwa ndi matrix ndi wofooka kwambiri, zomwe zimalepheretsa kugwiritsa ntchito fiberglass mu zinthu zopangidwa ndi zinthu zosiyanasiyana. Chifukwa chake, kugwiritsa ntchito njira yopangira kukula kwa zinthu kuti muwonjezere kapangidwe ka ulusi wagalasi ndikulimbitsa mgwirizano wa pakati ndi njira yofunika kwambiri yowongolera magwiridwe antchito a zinthu zopangidwa ndi ulusi wagalasi.

Chothandizira kukula chimapanga gawo la molekyulu pamwamba pafiberglass, zomwe zingathandize kuchepetsa kupsinjika kwa interfacial, zomwe zimapangitsa kuti pamwamba pa fiberglass pakhale pofewa kwambiri kapena oleophilic kuti pakhale kugwirizana ndi matrix. Mwachitsanzo, kugwiritsa ntchito chida choyezera kukula chomwe chili ndi magulu ogwira ntchito ndi mankhwala kungapangitse kuti pakhale ma bond a mankhwala ndi pamwamba pa fiberglass, zomwe zimapangitsa kuti pakhale mphamvu yolumikizirana pakati pa ma fiberglass.

Kafukufuku wasonyeza kuti zinthu zoyezera kukula kwa nano-level zimatha kuphimba pamwamba pa fiberglass mofanana ndikulimbitsa mgwirizano wa makina ndi mankhwala pakati pa ulusi ndi matrix, motero zimathandizira bwino mawonekedwe a makina a ulusi. Nthawi yomweyo, njira yoyenera yoyezera kukula imatha kusintha mphamvu ya pamwamba pa ulusi ndikusintha kunyowa kwa fiberglass, zomwe zimapangitsa kuti pakhale kulumikizana kwamphamvu pakati pa ulusi ndi zinthu zosiyanasiyana za matrix.

Njira zosiyanasiyana zophikira zimathandizanso kwambiri pakukweza mphamvu ya mgwirizano wa pakati pa nkhope. Mwachitsanzo, chophikira chothandizidwa ndi plasma chingagwiritse ntchito mpweya wa ionized pochizaulusi wagalasipamwamba, kuchotsa zinthu zachilengedwe ndi zinyalala, kuwonjezera ntchito ya pamwamba, motero kumathandizira kuti chopangira kukula chigwirizane ndi pamwamba pa ulusi.

Zipangizo za matrix zokha zimagwiranso ntchito yofunika kwambiri pakulumikizana kwa interfacial. Kupanga mapangidwe atsopano a matrix omwe ali ndi mphamvu yamphamvu ya mankhwala pa ulusi wagalasi wokonzedwa kungapangitse kusintha kwakukulu. Mwachitsanzo, ma matrix okhala ndi magulu ambiri osinthika amatha kupanga ma covalent bonds olimba kwambiri ndi wothandizira kukula pamwamba pa ulusi. Kuphatikiza apo, kusintha mawonekedwe a kukhuthala ndi kuyenda kwa zinthu za matrix kumatha kutsimikizira kuti ulusi wa ulusi umalowa bwino, kuchepetsa ma voids ndi zolakwika pa interface, zomwe ndi gwero lofala la kufooka.

Njira yopangira yokha ikhoza kukonzedwa bwino kuti ikonze mgwirizano wa pakati pa nkhope.kulowetsedwa kwa vacuumkapenaKuumba kwa utomoni (RTM)zingatsimikizire kuti madziwo anyowa mofanana komanso mokwaniraulusi wagalasindi matrix, kuchotsa matumba a mpweya omwe angafooketse mgwirizano. Kuphatikiza apo, kugwiritsa ntchito mphamvu yakunja kapena kugwiritsa ntchito kayendedwe ka kutentha kolamulidwa panthawi yokonza kungathandize kuti ulusi ndi matrix zigwirizane kwambiri, zomwe zimapangitsa kuti pakhale kulumikizana kwakukulu komanso kulumikizana kwamphamvu.

Kupititsa patsogolo mphamvu yolumikizirana pakati pa magalasi ndi gawo lofunika kwambiri pa kafukufuku lomwe lili ndi ntchito zofunika kwambiri. Ngakhale kugwiritsa ntchito zinthu zoyezera kukula ndi njira zosiyanasiyana zokutira ndi maziko a ntchitoyi, pali njira zina zingapo zomwe zikufufuzidwa kuti ziwongolere magwiridwe antchito.