Kev sib piv ntawm cov teebmeem ntawm kev hloov kho sib txawv ntawm cov khoom siv kho tshuab ntawm basalt fibers

1.Effect ntawm silane coupling tus neeg saib xyuas kev hloov kho ntawm cov khoom siv tshuab

Silane coupling agents (xws li KH-550 thiab KH-570) tsim cov txheej txheem reactive rau saum npoo ntawm basalt fibers los ntawm Tshuaj kev sib txuas, uas txhim kho kev sib txuas ntawm cov fibers thiab cov substrate, thiab tib lub sijhawm, muaj qee yam cuam tshuam rau cov khoom siv ntawm cov fibers.

KH-550 Hloov kho:

Qhov zoo: tsim ib daim ntawv cog lus ntawm cov fiber ntau, thiab txhim kho qhov adhesion ntawm fiber ntau thiab substrate, tsis muaj kev puas tsuaj rau cov khoom siv fiber ntau ntawm nws tus kheej.

Kev cuam tshuam: Cov kev tshawb fawb qhia tau hais tias tom qab KH-550 hloov kho, lub zog tensile thiab modulus ntawm elasticity ntawm basalt fibers yeej tseem tsis hloov, tab sis vim yog kev txhim kho ntawm interfacial bonding zog, tag nrho cov khoom siv ntawm cov khoom sib xyaw tau zoo tuaj.

KH-570 kev hloov kho:

Qhov zoo: KH-570 roughens saum npoo ntawm basalt fibers thiab txhim kho lawv cov khoom siv nrog cov matrix.

Kev cuam tshuam: Thaum lub ntsej muag roughening tuaj yeem txo qis lub zog tensile ntawm cov fibers, tag nrho lub zog, toughness, thiab durability ntawm cov composite yog ho txhim kho vim qhov txhim kho interfacial bonding zog.

2.Effect ntawm surfactant hloov kho ntawm txhua yam khoom

Cationic surfactants (xws li CTAC) tsim txheej txheej ntawm fiber ntau los ntawm lub cev adsorption, thiab lawv lub hom phiaj tseem ceeb yog txhawm rau txhim kho hydrophilicity thiab dispersibility ntawm fibers.

Qhov zoo:Kev hloov pauv surfactant yuav luag tsis muaj tshuaj lom neeg cuam tshuam rau ntawm qhov chaw fiber ntau, yog li nws tsis tshua muaj txiaj ntsig rau cov khoom siv hluav taws xob ntawm fiber ntau.

Kev cuam tshuam: Lub zog tensile thiab elastic modulus ntawm cov fiber ntau yog qhov pib tsis hloov tom qab CTAC hloov kho. Kev hloov kho tsuas yog txhim kho qhov sib txawv thiab hydrophilicity ntawm fibers, kom cov khoom siv matrix uniformly qhwv cov fibers, yog li indirectly txhim kho cov khoom siv ntawm cov khoom sib xyaw.

3.Effect ntawm nano silica txheej hloov kho ntawm txhua yam khoom

Nano-silica txheej txhim kho lub ntsej muag roughness thiab interfacial bonding muaj peev xwm ntawm fibers thiab matrix los ntawm kev tsim ib txheej txheej ntawm nanoparticles rau saum npoo ntawm basalt fibers.

Qhov zoo: Cov nano-silica particles ua raws li "choj" ntawm fiber ntau, ntxiv dag zog rau kev sib txuas ntawm fiber ntau thiab matrix.

Kev cuam tshuam:Cov txheej txheej ntawm silica nanoparticles yuav ua rau lub cev puas tsuaj me ntsis rau cov fiber ntau, tab sis nws qhov cuam tshuam rau lub zog tensile ntawm cov fibers yog me me (feem ntau tsawg dua 5%). Tom qab kev hloov kho, tag nrho cov khoom siv kho tshuab (xws li lub zog tensile, flexural zog) ntawm cov khoom sib xyaw tuaj yeem txhim kho tau zoo, txog li 15% -30%.

4.Effect ntawm organic hlau kua theem deposition hloov kho ntawm txhua yam khoom

Organic hlau ua kua theem deposition txoj kev yog tsuas yog siv los txhim kho lub bio-adhesion muaj peev xwm ntawm basalt fibers, thiab nws li ntawm txhua yam khoom yog indirect.

Qhov zoo: Qhov tsim ntawm txheej muaj qhov cuam tshuam me me ntawm cov khoom siv hluav taws xob ntawm cov fiber ntau, thiab feem ntau txhim kho kev ua haujlwm ntawm fiber ntau.

Kev cuam tshuam:txheej txheej yuav ua rau me ntsis rigidity ntawm fiber ntau, tab sis qhov cuam tshuam ntawm tensile los yog flexural zog tsis tseem ceeb. Cov khoom siv kho tshuab ntawm cov kev hloov pauv tau txwv, thiab lawv tau siv ntau dua hauv kev tiv thaiv ib puag ncig.

5.Qhov cuam tshuam ntawm lwm yam kev hloov kho lub cev lossis tshuaj lom neeg ntawm cov khoom siv kho tshuab

Kev siv lub cev (xws li kev kho cua sov):

Kev kho cua sov tuaj yeem hloov cov qauv saum npoo ntawm fiber ntau, tab sis tuaj yeem ua rau thermal puas rau fiber ntau nws tus kheej, ua rau txo qis tensile zog. Kev kho cua sov tsim nyog yuav pab tshem tawm cov impurity txheej ntawm fiber ntau, yog li indirectly txhim kho lub interfacial bonding zog ntawm fiber thiab matrix.

Kev hloov kho tshuaj etching:

Tshuaj etching (piv txwv li, acid kho) roughens lub fiber nto thiab txhim kho cov neeg kho tshuab embedding ntawm lub interface. Txawm li cas los xij, etching tuaj yeem ua rau cov fibers nws tus kheej tsis muaj zog, ua rau poob ntawm tensile zog, uas yuav tsum tau hnyav.

Daim ntawv sib piv

Xaus

1. Silane coupling tus neeg sawv cev thiab nano-silica txheej yog tam sim no cov kev hloov kho uas muaj qhov cuam tshuam tsawg tshaj plaws ntawm cov khoom siv hluav taws xob ntawm basalt fibers, thaum tib lub sij hawm txhim kho tag nrho cov khoom siv hluav taws xob ntawm cov khoom sib xyaw zoo tshaj plaws.
2. Kev hloov pauv surfactant yuav luag tsis muaj kev cuam tshuam ncaj qha rau cov khoom siv hluav taws xob ntawm fibers, thiab nws yog qhov tsim nyog rau cov xwm txheej uas yuav tsum tau txhim kho cov dispersion lossis hydrophilicity ntawm fibers.
3. Cov tshuaj etching thiab kev kho cua sov yuav tsum tau siv nrog ceev faj, vim hais tias txawm hais tias lawv tuaj yeem txhim kho cov khoom sib txuas ntawm lub ntsej muag, lawv tuaj yeem ua rau txo qis ntawm cov khoom siv fiber ntau.
4. Qhov kev xaiv ntawm kev hloov kho yuav tsum yog raws li daim ntawv thov yuav tsum ntsuas qhov kev ua tau zoo ntawm fiber ntau nws tus kheej thiab tag nrho cov kev ua tau zoo ntawm cov khoom sib xyaw los txhim kho cov nyhuv.