Fiber e Matlafalitsoeng ka Plastic Reinforcement(FRP Reinforcement) butle-butle e nkela sebaka sa ts'ebetso ea tšepe ea setso ho boenjiniere ba sechaba ka lebaka la boima ba eona bo bobebe, matla a phahameng le thepa e sa jeng. Leha ho le joalo, ho tšoarella ha eona ho angoa ke mefuta e fapaneng ea maemo a tikoloho, 'me lintlha tse latelang tsa bohlokoa le mehato ea ho loants'a li hloka ho nahanoa:
1. Mongobo le tikoloho ea metsi
Mochini oa tšusumetso:
Mongobo o kenella ka har'a substrate e bakang ho ruruha le ho fokolisa khokahanyo ea fiber-substrate interface.
Hydrolysis ea likhoele tsa khalase (GFRP) e ka etsahala ka tahlehelo e kholo ea matla; carbon fiber (CFRP) ha e amehe hakaalo.
Libaesekele tse metsi le tse omeletseng li potlakisa katoloso ea microcrack, e bakang delamination le debonding.
Mehato ea ts'ireletso:
Khetha li-resin tse tlase tsa hygroscopicity (mohlala, vinyl ester); ho roala bokahodimo kapa kalafo ya ho thibela metsi.
Khetha CFRP sebakeng se mongobo sa nako e telele.
2. Mocheso le Thermal Cycling
Liphello tsa mocheso o phahameng:
Resin matrix e nolofala (kaholimo ho mocheso oa phetoho ea khalase), e bakang ho fokotseha ho sataletseng le matla.
Mocheso o phahameng o potlakisa hydrolysis le oxidation reaction (mohlalaFiber ea AramidAFRP e kotsing ea ho senyeha ha mocheso).
Litlamorao tsa mocheso o tlase:
Matrix embrittlement, e atisang ho ba le micro-cracking.
Thermal cycling:
Phapang ea coefficient ea katoloso ea mocheso lipakeng tsa fiber le matrix e lebisa ho bokelleng ha likhatello tsa sefahleho le ho etsa hore ho theohe.
Mehato ea ts'ireletso:
Khetho ea li-resin tse hanyetsanang le mocheso o phahameng (mohlala, bismaleimide); optimization ea fibre/substrate thermal match.
3. Mahlaseli a Ultraviolet (UV).
Mochini oa tšusumetso:
UV e baka karabelo ea oxidation ea foto ea resin, e lebisang ho chekoeng holimo, ho hoholeha le ho eketseha ha maqhetsoana.
E potlakisa ho kenella ha mongobo le lik'hemik'hale, ho baka ho senyeha ha synergistic.
Mehato ea ts'ireletso:
Kenya lisebelisoa tsa UV (mohlala, titanium dioxide); koahela bokaholimo ka lera le sireletsang (mohlala, polyurethane coating).
Kamehla hlahlobaLikarolo tsa FRPdibakeng tse pepeneneng.
4. Ho bola ha lik'hemik'hale
Tikoloho e nang le asiti:
Khoholeho ea sebopeho sa silicate ka har'a likhoele tsa khalase (GFRP sensitive), e bakang ho senyeha ha fiber.
Tikoloho ea alkaline (mohlala, maro a konkreite):
E senya marang-rang a siloxane a likhoele tsa GFRP; resin matrix e ka 'na ea e-ba saponify.
Carbon fiber (CFRP) e na le khanyetso e ntle ea alkali mme e loketse meaho ea konkreite.
Libaka tsa ho fafatsa letsoai:
Ho kenella ka chloride ion ho potlakisa ho bola ha sefahleho le ho hokahana le mongobo ho mpefatsa ho senyeha ha ts'ebetso.
Mehato ea ts'ireletso:
Khetho ea likhoele tse hananang le lik'hemik'hale (mohlala, CFRP); tlatsetso ea li-filler tse thibelang kutu ho matrix.
5. Lipotoloho tsa ho qhibiliha ha leqhoa
Mochini oa tšusumetso:
Mongobo o kenang ka har'a li-microcracks oa hoama le ho hola, o holisa tšenyo; ho qhoqhoa khafetsa le ho qhibiliha ho lebisa ho phatloheng ha matrix.
Mehato ea ts'ireletso:
Laola ho kenngoa ha metsi ka lintho tse bonahalang; sebelisa flexible resin matrix ho fokotsa tšenyo e brittle.
6. Nako e telele ea ho laela le ho hahaba
Litlamorao tse sa fetoheng:
Ho theoha ha matrix a resin ho lebisa khatellong ea maikutlo 'me likhoele li beoa ke meroalo e phahameng, e ka bakang ho robeha.
AFRP e thella haholo, CFRP e na le khanyetso e ntle ka ho fetisisa ea creep.
Ho kenya ka matla:
Ho khathala ho potlakisa ho atolosoa ha microcrack le ho fokotsa bophelo ba mokhathala.
Mehato ea ts'ireletso:
Lumella bakeng sa ntlha e phahameng ea tšireletso ho moralo; khetha CFRP kapa likhoele tse phahameng tsa modulus.
7. Ho kopanya tikoloho e kopanetsoeng
Maemo a sebele a lefats'e (mohlala, tikoloho ea leoatle):
Mongobo, sefafatsi sa letsoai, ho feto-fetoha ha mocheso le moroalo oa mochini li sebetsa ka mokhoa o ts'oanang ho khutsufatsa bophelo.
Leano la ho araba:
Tekolo ea teko ea botsofali e potlakileng ea lintlha tse ngata; moralo reserve tikoloho theolelo ntlha.
Kakaretso le Likhothaletso
Khetho ea lintho tse bonahalang: Mofuta oa faeba o ratoang ho latela tikoloho (mohlala, CFRP ho hanyetsa lik'hemik'hale hantle, GFRP e theko e tlase empa e hloka tšireletso).
Moralo oa ts'ireletso: ho roala ka holim'a metsi, kalafo ea ho tiisa, tlhahiso e ntlafalitsoeng ea resin.
Tlhokomelo le tlhokomelo: ho lemoha khafetsa ha li-micro-cracks le ho senyeha ha ts'ebetso, ho lokisoa ka nako.
The durability eaFRP e matlafatsae hloka ho netefatsoa ka ho kopanya lisebelisoa, moralo oa sebopeho le tlhahlobo ea maemo a tikoloho, haholo-holo libakeng tse thata moo ts'ebetso ea nako e telele e hlokang ho netefatsoa ka hloko.
Nako ea poso: Apr-02-2025
