Basalt Fiber Untwisted Cloth: Ib qho "Reinforcing Skeleton" thiab "Functional Carrier" rau Composite Materials

Basalt fiber tsis sib ntswg daim ntaubyog ib daim ntaub nyias nyias uas tau xaws los ntawm kev txuas ntxiv mus cov fiber basalt (tsis muaj xov los yog tsis muaj zog ntswj) siv cov qauv weave yooj yim xws li tiaj tus thiab twill. Nws lub ntsiab lus tseem ceeb yog nyob rau hauv kev ua kom zoo tshaj plaws ntawm cov khoom siv kho tshuab thiab kev ua haujlwm ntawm cov fiber basalt los ntawm kev tsim qauv ntawm "kev sib ntswg tsawg + kev sib txuas siab," ua rau nws yog ib qho khoom siv zoo tshaj plaws hauv kev tsim cov khaub ncaws sib xyaw.

1. Cov Yam Ntxwv Tseem Ceeb: Ob Qhov Zoo ntawm Kev Khaws Cia Kev Ua Haujlwm thiab Kev Hloov Kho Cov Txheej Txheem

Kev Ruaj Ntseg Siab: Tus qauv tsim "untwisted" zam kev ntxhov siab sab hauv thiab kev poob zog los ntawm kev sib ntswg, tso cai rau lub zog tensile thiab elastic modulus ntawm daim ntaub kom mus txog qib ntawm thawj basalt fiber(lub zog tensile tuaj yeem ncav cuag ntau dua 3000MPa, elastic modulus kwv yees li 90 ~ 110GPa), ntau tshaj qhov ntawm Iav Fiber daim ntaub tsis sib ntswg ntawm tib cov lus qhia.

Kev ntub dej zoo heev: Cov qauv ntawm daim ntaub uas xoob thiab sib npaug muab thaj chaw sib cuag loj nrog cov resins (epoxy resin, unsaturated polyester resin, thiab lwm yam), ua rau cov resin impregnation sai, txo cov qhov tsis zoo ntawm cov npuas cua sab hauv cov ntaub sib xyaw, thiab ua kom muaj kev ruaj khov ntawm cov khoom tiav.

Kev ruaj khov ntawm qhov ntev: Cov fiber basalt muaj cov coefficient qis ntawm kev nthuav dav linear (kwv yees li 6 × 10⁻⁶ / ℃), thiab daim ntaub tsis sib ntswgtsis tshua muaj kev pheej hmoo ntawm kev ntsws lossis kev poob ntawm cov ntaub vim muaj kev hloov pauv ntawm qhov kub lossis kev ntxhov siab thaum lub sijhawm molding thiab siv, ua rau nws tsim nyog rau kev tsim cov ntaub sib xyaw ua ke uas muaj kev ua haujlwm siab.

Kev tiv thaiv ib puag ncig zoo tshaj plaws: Txais qhov kub thiab txias siab thiab qis (kub ua haujlwm ntev -260 ℃ ~ 650 ℃), kua qaub thiab alkali Kev Tiv Thaiv Kev Xeb (kev ruaj khov zoo dua li cov tshuaj xws li hydrochloric acid thiab sodium hydroxide piv rau cov iav fiber), thiab kev laus tsis kam (tsis muaj kev pheej hmoo ntawm UV degradation), nws yog qhov tsim nyog rau cov xwm txheej ua haujlwm hnyav.

2. Tus Nqi Tseem Ceeb ntawm Daim Ntawv Thov: Los ntawm Kev Txhawb Nqa Cov Qauv Mus Rau Kev Sib xyaw Ua Haujlwm

(1) Cov Khoom Siv Uas Muaj Cov Khoom Siv Sib Xyaws Ua Ke: Ib Lub "Dual Core" ntawm Sib dua thiab Muaj Zog Siab

Daim ntaub tsis sib ntswgyog lub hauv paus "pob txha" ntawm basalt fiber reinforced polymer (BFRP), hloov dav dav iav fiber daim ntaub thiab carbon fiber daim ntaub, thiab siv rau hauv cov xwm txheej uas tus nqi thiab kev ua tau zoo sib npaug. Hauv kev thauj mus los, nws yog siv rau hauv cov khoom siv tsheb sib dua (xws li cov vaj huam sib luag qhov rooj thiab cov chassis tiv thaiv), cov khoom siv sab hauv tsheb ciav hlau ceev ceev, thiab cov txheej txheem txhawb nqa lub lawj nkoj, ua tiav qhov hnyav txo qis ntawm 30% ~ 50% thaum ua kom muaj kev tiv thaiv kev cuam tshuam ntawm cov qauv thiab kev tiv thaiv corrosion ntawm dej hiav txwv; hauv kev tsim kho thiab kev tsim kho vaj tse, ua cov ntaub ntawv txhawb nqa rau kev txhawb nqa choj, txoj kab hauv av, thiab cov khoom siv pob zeb, nws zam cov teeb meem corrosion thiab ntev lub neej ntawm cov qauv (lub neej ua haujlwm tuaj yeem ncav cuag ntau dua 50 xyoo) piv rau cov hlau ib txwm muaj, thiab kuj siv rau hauv cov kav dej fiberglass thiab cov thoob dej cia khoom kom txhim kho kev tiv thaiv acid thiab alkali media corrosion; hauv kev lag luam aerospace auxiliary clotherials, nws hloov qee cov ntaub ntawv txhawb nqa carbon fiber hauv cov khoom tsis-load-bearing lossis secondary load-bearing xws li satellite brackets thiab drone fuselages nrog qhov zoo ntawm "tus nqi qis + kev ua tau zoo siab," txo cov nqi tsim khoom.

(2) Kev Tiv Thaiv Kub Siab thiab Kev Tiv Thaiv Rwb Thaiv Kub: "Kev Hloov Kho Kom Zoo" rau Cov Xwm Txheej Ua Haujlwm

Kev cia siab rau nws qhov kev tiv taus kub thiab cov khoom rwb thaiv tsev, daim ntaub tsis sib ntswgNws siv tau ntev hauv kev tiv thaiv kev lag luam thiab khoom siv hluav taws xob. Yog hais txog cov khoom siv tiv thaiv kub thiab txias, tom qab kho cov txheej txheem (xws li silicone roj hmab txheej), nws tau ua rau cov pam hluav taws, cov ntaub tiv thaiv vuam, thiab cov ntaub thaiv cua sov hauv kev lag luam hlau, uas tuaj yeem tiv taus qhov kub thiab txias tam sim ntawd ntawm 800 ° C yam tsis muaj kev pheej hmoo ntawm kev yaj thiab dej ntws, uas zoo dua li cov khoom siv fiberglass tiv thaiv ib txwm muaj. Yog hais txog cov ntaub thaiv hluav taws xob, ua cov ntaub qhwv lossis daim kab xev qhwv rau cov cav thiab cov hloov pauv, nws muaj qhov poob dielectric qis (20kV/mm), thiab tiv taus kev laus ntawm cua sov noo, uas ua tau raws li qhov yuav tsum tau ua haujlwm ntev ntawm cov khoom siv hluav taws xob siab.