Nkwalite Plastic Mgbakwunye Fiber(FRP Reinforcement) na-eji nwayọọ nwayọọ na-edochi nkwado nchara ọdịnala na injinia obodo n'ihi ịdị arọ ya, ike dị elu yana ihe na-eguzogide corrosion. Otú ọ dị, ihe dị iche iche gburugburu ebe obibi na-emetụta ịdịte aka ya, ọ dịkwa mkpa ka e chebara ihe ndị na-esonụ isi na ihe ndị na-emegide ya:
1. iru mmiri na gburugburu mmiri
Usoro mmetụta:
Mmiri na-abanye n'ime mkpụrụ nke na-eme ka ọzịza ma na-ebelata njikọ interface fiber-substrate.
Hydrolysis nke iko eriri (GFRP) nwere ike ime na nnukwu ọnwụ nke ike; carbon fibers (CFRP) adịghị emetụta ya.
Ịgba ígwè mmiri mmiri na nkụ na-eme ka mgbasawanye microcrack dịkwuo elu, na-akpalite delamination na debonding.
Usoro nchebe:
Họrọ resins hygroscopicity dị ala (dịka vinyl ester); mkpuchi elu ma ọ bụ ọgwụgwọ mmiri.
Hụrụ CFRP na gburugburu iru mmiri dị ogologo oge.
2. Okpomọkụ na ịgba ígwè ọkụ
Mmetụta okpomọkụ dị elu:
Matrix resin na-adị nro (n'elu okpomoku mgbanwe iko), na-ebute mbelata isi ike na ike.
Okpomọkụ dị elu na-eme ka hydrolysis na mmeghachi omume oxidation (dịka ọmụmaatụAramid eririAFRP na-enwe ike imebi mmebi okpomọkụ).
Mmetụta okpomọkụ dị ala:
Matrix embrittlement, na-adịkarị mfe micro-cracking.
Ịnya igwe okpomọkụ:
Ọdịiche dị na ọnụọgụ nke mgbasawanye okpomọkụ dị n'etiti eriri na matriks na-eduga n'ịchịkọta nrụgide n'etiti ihu ma na-akpalite debonding.
Usoro nchebe:
Nhọrọ nke resins na-eguzogide okpomọkụ dị elu (dịka bismaleimide); njikarịcha nke eriri / substrate thermal match.
3. Ultraviolet (UV) radieshon
Usoro mmetụta:
UV na-akpalite mmeghachi omume foto-oxidation nke resin, na-eduga na chalking n'elu, mbrittlement na mmụba micro-cracking.
Na-eme ka ntinye nke mmiri na kemịkal mee ngwa ngwa, na-ebute mmebi nke synergistic.
Usoro nchebe:
Tinye UV absorbers (dịka titanium dioxide); kpuchie elu ya na mkpuchi nchebe (dịka mkpuchi polyurethane).
Na-enyocha mgbe niileAkụkụ FRPna gburugburu ekpughere.
4. Chemical corrosion
gburugburu acid:
Mbibi nke usoro silicate na eriri iko (GFRP sensọ), na-ebute mgbaji eriri.
Gburugburu Alkaline (dịka ọmụmaatụ mmiri mmiri pore):
Na-emebi netwọk siloxane nke eriri GFRP; resin matrix nwere ike saponify.
Carbon eriri (CFRP) nwere magburu onwe alkali nguzogide na adabara ihe owuwu.
gburugburu ịgbasa nnu:
Ntinye ion chloride na-eme ka corrosion n'etiti ihu dịkwuo elu ma na-ejikọta ya na iru mmiri iji mee ka mmebi ọrụ dịkwuo njọ.
Usoro nchebe:
Nhọrọ nke eriri na-eguzogide ọgwụ (dịka ọmụmaatụ, CFRP); mgbakwunye nke ihe ndozi na-eguzogide corrosion na matriks.
5. Okirikiri na-agbaze oyi
Usoro mmetụta:
Mmiri na-abanye n'ime microcracks na-ajụ oyi ma gbasaa, na-abawanye mmebi ahụ; Ntu oyi ugboro ugboro na thawing na-eduga na mgbawa nke matriks.
Usoro nchebe:
Ejikwa ihe eji eme mmiri; jiri resin matrix na-agbanwe agbanwe iji belata mmebi na-emebi emebi.
6. Ogologo oge loading na creep
Mmetụta ibu kwụ ọtọ:
Mwepu nke resin matrix na-eduga n'ịkesa nrụgide na eriri na-ebute ibu dị elu, nke nwere ike ịkpalite mgbaji.
AFRP na-akpụ akpụ nke ukwuu, CFRP nwere nguzogide kacha mma.
Nbudata dị ike:
Ịkwado ike ọgwụgwụ na-eme ka mgbasawanye microcrack dị ngwa ma na-ebelata ndụ ike ọgwụgwụ.
Usoro nchebe:
Kwe ka ihe nchekwa dị elu na imewe; na-ahọrọ CFRP ma ọ bụ eriri modulus dị elu.
7. Njikọ gburugburu ebe obibi jikọtara ọnụ
Ihe ndapụta n'ezie (dịka ọmụmaatụ, gburugburu mmiri):
Iru mmiri, ịgba nnu, mgbanwe okpomọkụ na ibu ọrụ na-arụkọ ọrụ ọnụ na-eme ka ndụ dị mkpụmkpụ nke ukwuu.
Atụmatụ nzaghachi:
Multi-factor accelerated ịka nká nwale; imewe idobere gburugburu ebe obibi ego ihe.
Nchịkọta na Nkwanye
Nhọrọ ihe: Ụdị eriri ahọrọ dị ka gburugburu ebe obibi (dịka CFRP ezigbo nguzogide kemịkalụ, GFRP dị ọnụ ala mana ọ chọrọ nchebe).
Nhazi nchekwa: mkpuchi elu, ọgwụgwọ akara, nhazi resin kachasị mma.
Nleba anya na mmezi: nchọpụta mgbe niile nke micro-cracks na mmebi arụmọrụ, nrụzi oge.
The anwụ ngwa ngwa nkeFRP nkwadokwesiri ijide n'aka site na nchikota nke njikarịcha ihe, nhazi nhazi na ntule imeghari gburugburu ebe obibi, karisia na gburugburu ebe siri ike ebe kwesiri iji nlezianya nyochaa oru ngo ogologo oge.
Oge nzipu: Eprel-02-2025
