akụkọ

Fiberglass Reinforced Polymer (GFRP)bụ ihe eji arụ ọrụ dị elu nke ejiri eriri iko mee dị ka ihe na-eme ka ihe sie ike na resin polymer dị ka matrix, site na iji usoro pụrụ iche. Isi nhazi ya nwere eriri iko (dịkaE-glass, S-glass, ma ọ bụ AR-glass siri ike nke ukwuu) nwere dayameta nke 5 ~ 25μm na matrices thermosetting dị ka epoxy resin, polyester resin, ma ọ bụ vinyl ester, yana oke olu eriri na-erukarị 30% ~ 70% [1-3]. GFRP na-egosipụta ihe onwunwe dị mma dịka ike kpọmkwem karịrị 500 MPa/(g/cm3) na modulus kpọmkwem karịrị 25 GPa/(g/cm3), ebe ọ nwekwara àgwà dịka iguzogide nchara, ike ọgwụgwụ, obere coefficient nke mgbasawanye okpomọkụ [(7 ~ 12) × 10−6 °C−1], na nghọta elektrọnik.

N'ọgbọ ụgbọelu, ojiji nke GFRP malitere na afọ 1950 ma ugbu a ọ ghọọla ihe dị mkpa maka ibelata oke nhazi na imeziwanye arụmọrụ mmanụ ụgbọala. Dịka ọmụmaatụ, GFRP na-aza 15% nke ihe owuwu ya na-abụghị nke mbụ, nke ejiri na ihe dị ka fairings na winglets, na-enweta mbelata ibu nke 20% ~ 30% ma e jiri ya tụnyere ihe ndị e ji aluminom mee. Mgbe ejiri GFRP dochie ogwe ala ụlọ nke Airbus A320, oke nke otu ihe ahụ belatara site na 40%, arụmọrụ ya na gburugburu ebe mmiri dị mma nke ukwuu. Na ngalaba helikọpta, panel dị n'ime ụlọ Sikorsky S-92 na-eji usoro sanwichi mmanụ aṅụ GFRP, na-enweta nguzozi n'etiti iguzogide mmetụta na mgbochi ire ọkụ (na-agbaso ọkọlọtọ FAR 25.853). Ma e jiri ya tụnyere Carbon Fiber Reinforced Polymer (CFRP), ọnụ ahịa ihe eji arụ ọrụ nke GFRP na-ebelata site na 50% ~ 70%, na-enye nnukwu uru akụ na ụba na ihe ndị na-ebu ibu mbụ. Ugbu a, GFRP na-emepụta sistemụ ngwa gradient ihe eji arụ ọrụ nke nwere eriri carbon, na-akwalite mmepe ugboro ugboro nke akụrụngwa ikuku iji mee ka ọ dị mfe, ogologo ndụ, na ọnụ ala dị ala.

Site n'echiche nke ihe onwunwe anụ ahụ,GFRPỌ nwekwara uru pụrụ iche n'ihe gbasara ịdị arọ, ihe ndị na-eme ka okpomọkụ dị, iguzogide nchara, na ịrụ ọrụ. Banyere ịdị arọ, njupụta nke eriri iko sitere na 1.8 ~ 2.1 g/cm3, nke bụ naanị 1/4 nke ígwè na 2/3 nke alloy aluminom. Na nnwale ndị na-eme agadi n'oge agadi, ọnụego njigide ike gafere 85% mgbe awa 1,000 gasịrị na 180 °C. Ọzọkwa, GFRP mikpuru na ngwọta NaCl 3.5% ruo otu afọ gosiri mbelata ike nke ihe na-erughị 5%, ebe ígwè Q235 nwere mbelata arọ nchara nke 12%. Nguzogide acid ya pụtara ìhè, yana ọnụego mgbanwe oke dị ala karịa 0.3% na ọnụego mmụba olu dị ala karịa 0.15% mgbe ụbọchị 30 gasịrị na ngwọta HCl 10%. Ihe nlele GFRP ejiri Silane gwọọ nọgidere na-enwe ọnụego njigide ike gbagọrọ agbagọ gafere 90% mgbe awa 3,000 gasịrị.

Na nchịkọta, n'ihi njikọta pụrụ iche nke ihe onwunwe ya, a na-eji GFRP eme ihe nke ukwuu dị ka ihe dị mkpa maka imepụta na imepụta ụgbọelu, nke nwere nnukwu mkpa na ụlọ ọrụ ụgbọelu nke oge a na mmepe teknụzụ.