Njira Zofunikira Zokulitsira Mphamvu Zomangirira Zophatikizana mu Fiberglass Composites

Pazinthu zophatikizika, magwiridwe antchito a fiberglass ngati gawo lothandizira kwambiri zimatengera kuthekera kolumikizana pakati pa ulusi ndi matrix. Mphamvu ya mgwirizano wapakati uwu imatsimikizira kuthekera kwa kutengerapo nkhawa pamene ulusi wa galasi uli pansi pa katundu, komanso kukhazikika kwa galasi la galasi pamene mphamvu yake ili pamwamba. Nthawi zambiri, kulumikizana pakati pa magalasi a fiberglass ndi zinthu za matrix ndizofooka kwambiri, zomwe zimalepheretsa kugwiritsa ntchito magalasi a fiberglass muzinthu zophatikizika kwambiri. Chifukwa chake, kugwiritsa ntchito njira yokutira yopangira sizing kuti mukwaniritse mawonekedwe apakati ndikulimbitsa kulumikizana kwapakati ndi njira yofunika kwambiri yopititsira patsogolo magwiridwe antchito a magalasi a fiber composites.

A sizing wothandizira amapanga maselo wosanjikiza pamwamba pagalasi la fiberglass, zomwe zingathe kuchepetsa kusagwirizana kwapakati, kupangitsa kuti galasi la fiberglass likhale la hydrophilic kapena oleophilic kuti likhale logwirizana ndi masanjidwewo. Mwachitsanzo, kugwiritsa ntchito makina opangira ma saizi omwe ali ndi magulu omwe amagwira ntchito ndi mankhwala kumatha kupanga zomangira zamakemikolo ndi magalasi a fiberglass, kupititsa patsogolo nyonga yolumikizirana.

Kafukufuku wasonyeza kuti ma nano-level sizing agents amatha kuvala magalasi a fiberglass mofanana kwambiri ndikulimbitsa mgwirizano wamakina ndi mankhwala pakati pa ulusi ndi matrix, potero amawongolera magwiridwe antchito a fiber. Nthawi yomweyo, mawonekedwe opangira saizi yoyenera amatha kusintha mphamvu ya pamwamba pa fiber ndikusintha kunyowa kwa galasi la fiberglass, zomwe zimatsogolera kumamatira amphamvu pakati pa ulusi ndi zida zosiyanasiyana zamatrix.

Njira zosiyanasiyana zokutira zimathandizanso kwambiri pakuwongolera mphamvu zamagwirizano. Mwachitsanzo, zokutira zothandizidwa ndi plasma zimatha kugwiritsa ntchito mpweya wa ionized kuchizagalasi fiberpamwamba, kuchotsa zinthu za organic ndi zonyansa, kuchulukitsa zochitika zapamtunda, motero kuwongolera kulumikizana kwa chinthu choyezera pamwamba pa ulusi.

Zida za matrix palokha zimagwiranso ntchito yofunika kwambiri pakulumikizana kwamawonekedwe. Kupanga mapangidwe atsopano a matrix omwe ali ndi mphamvu yolumikizana ndi mankhwala a ulusi wamagalasi omwe amapangidwa kungapangitse kusintha kwakukulu. Mwachitsanzo, ma matrices omwe ali ndi magulu ambiri okhazikika amatha kupanga zomangira zolimba kwambiri ndi choyezera pamtundu wa fiber. Kuphatikiza apo, kusintha mawonekedwe a viscosity ndikuyenda kwa zinthu za matrix kumatha kuonetsetsa kuti mtolo wa fiber umalowa bwino, kuchepetsa zotumphukira ndi zolakwika pamawonekedwe, zomwe ndizomwe zimayambitsa kufooka.

Njira yodzipangira yokha imatha kukonzedwa kuti ikhale yolumikizana bwino. Njira ngativacuum kulowetsedwakapenautomoni kusamutsa akamaumba (RTM)akhoza kuonetsetsa kwambiri yunifolomu ndi wathunthu wetting wagalasi ulusindi matrix, kuchotsa matumba a mpweya omwe angafooketse mgwirizano. Kuphatikiza apo, kugwiritsa ntchito kukakamiza kwakunja kapena kugwiritsa ntchito kutentha koyendetsedwa pakuchiritsa kumatha kulimbikitsa kulumikizana kwapamtima pakati pa ulusi ndi matrix, zomwe zimapangitsa kuti pakhale kulumikizana kwakukulu komanso mawonekedwe amphamvu.

Kupititsa patsogolo mphamvu zomangirira zamagalasi zophatikizika zamagalasi ndi gawo lofunikira pakufufuza lomwe lili ndi ntchito zofunikira. Ngakhale kugwiritsa ntchito ma saizi ndi njira zosiyanasiyana zokutira ndimwala wapangodya wa izi, pali njira zina zingapo zomwe zikufufuzidwa kuti zipititse patsogolo magwiridwe antchito.