Kev sib piv ntawm cov teebmeem ntawm ntau txoj kev hloov kho rau cov khoom siv kho tshuab ntawm cov fibers basalt

1. Kev cuam tshuam ntawm kev hloov kho tus neeg sawv cev silane rau cov khoom siv kho tshuab

Cov neeg sawv cev silane coupling (piv txwv li KH-550 thiab KH-570) tsim ib txheej txheej tiv thaiv rau ntawm qhov chaw ntawm cov fibers basalt los ntawm Tshuaj lom neeg kev sib txuas, uas txhim kho qhov kev sib txuas ntawm cov fibers thiab cov substrate, thiab tib lub sijhawm, muaj qee yam cuam tshuam rau cov khoom siv kho tshuab ntawm cov fibers.

KH-550 Hloov Kho:

Cov txiaj ntsig: tsim ib qho kev sib txuas tshuaj lom neeg ntawm qhov chaw ntawm cov fiber, thiab txhim kho qhov kev sib txuas ntawm cov fiber thiab cov substrate, yam tsis muaj kev puas tsuaj rau cov khoom siv kho tshuab ntawm cov fiber nws tus kheej.

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

Kev hloov kho KH-570:

Cov txiaj ntsig: KH-570 ua rau cov nplaim ntawm cov fibers basalt ntxhib thiab txhim kho lawv cov khoom siv kho tshuab nrog lub matrix.

Kev cuam tshuam: Txawm hais tias qhov ntxhib ntawm qhov chaw yuav ua rau lub zog tensile ntawm cov fibers me ntsis txo qis, lub zog tag nrho, kev tawv, thiab kev ruaj khov ntawm cov khoom sib xyaw tau zoo dua vim yog cov khoom sib txuas interfacial zoo dua.

2. Kev cuam tshuam ntawm kev hloov kho surfactant rau cov khoom siv kho tshuab

Cov tshuaj cationic surfactants (piv txwv li CTAC) tsim ib txheej rau ntawm qhov chaw ntawm cov fiber feem ntau los ntawm kev nqus lub cev, thiab lawv lub hom phiaj tseem ceeb yog txhawm rau txhim kho hydrophilicity thiab dispersibility ntawm cov fibers.

Qhov Zoo:Qhov kev hloov kho surfactant yuav luag tsis muaj cov tshuaj lom neeg cuam tshuam rau ntawm qhov chaw ntawm cov fiber, yog li nws muaj tsawg dua rau cov khoom siv kho tshuab ntawm cov fiber.

Kev cuam tshuam: Lub zog tensile thiab elastic modulus ntawm cov fiber yeej tsis hloov pauv tom qab CTAC hloov kho. Qhov kev hloov kho feem ntau txhim kho qhov dispersibility thiab hydrophilicity ntawm cov fibers, yog li cov khoom siv matrix sib npaug qhwv cov fibers, yog li tsis ncaj qha txhim kho cov khoom siv kho tshuab ntawm cov composites.

3. Kev cuam tshuam ntawm nano silica txheej kev hloov kho rau cov khoom siv kho tshuab

Nano-silica txheej txhim kho qhov roughness ntawm qhov chaw thiab kev sib txuas ntawm cov fibers thiab matrix los ntawm kev tsim ib txheej txheej ntawm nanoparticles rau ntawm qhov chaw ntawm basalt fibers.

Qhov Zoo: Cov nano-silica particles ua haujlwm ua "choj" ntawm qhov chaw fiber, ua kom muaj zog ntawm kev sib txuas ntawm cov fiber thiab matrix.

Kev cuam tshuam:Cov txheej txheem ntawm silica nanoparticles yuav ua rau muaj kev puas tsuaj me ntsis rau ntawm qhov chaw ntawm cov fiber, 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 (piv txwv li lub zog tensile, lub zog flexural) ntawm cov khoom sib xyaw tuaj yeem txhim kho tau zoo heev, txog li 15% -30%.

4. Kev cuam tshuam ntawm cov kua hlau organic kua dej hloov pauv ntawm cov khoom siv kho tshuab

Txoj kev tso kua hlau organic feem ntau yog siv los txhim kho lub peev xwm bio-adhesion ntawm cov fibers basalt, thiab nws cov khoom siv kho tshuab txhim kho yog qhov tsis ncaj qha.

Qhov Zoo: qhov kev tsim ntawm cov txheej muaj qhov cuam tshuam me me rau cov khoom siv kho tshuab ntawm cov fiber, thiab feem ntau txhim kho kev ua haujlwm ntawm cov fiber.

Kev cuam tshuam:Cov txheej txheej yuav ua rau lub zog ntawm cov fiber ntau ntxiv me ntsis, tab sis qhov cuam tshuam rau lub zog tensile lossis flexural tsis tseem ceeb. Cov khoom siv kho tshuab ntawm cov khoom sib xyaw hloov kho yog txwv, thiab lawv feem ntau siv rau hauv kev tiv thaiv ib puag ncig.

5. Kev cuam tshuam ntawm lwm yam kev hloov kho lub cev lossis tshuaj rau cov khoom siv kho tshuab

Cov txheej txheem siv lub cev (piv txwv li kev kho cua sov):

Kev kho cua sov tuaj yeem hloov qhov qauv ntawm cov fiber, tab sis tej zaum yuav ua rau muaj kev puas tsuaj rau cov fiber nws tus kheej, ua rau lub zog tensile txo qis. Kev kho cua sov kom zoo pab tshem tawm cov txheej tsis huv ntawm qhov chaw ntawm cov fiber, yog li ntawd tsis ncaj qha txhim kho cov khoom sib txuas ntawm cov fiber thiab lub matrix.

Kev hloov kho tshuaj lom neeg:

Kev siv tshuaj etching (piv txwv li, kev kho acid) ua rau cov fiber nto ntxhib thiab ua rau lub interface sib txuas zoo dua. Txawm li cas los xij, kev etching yuav ua rau cov fiber nws tus kheej tsis muaj zog, ua rau poob cov khoom tensile, uas yuav tsum tau ntsuas.

Cov Lus Qhia Sib Piv Txog Kev Ua Haujlwm

Xaus lus

1. Tus neeg sawv cev silane coupling thiab nano-silica txheej tam sim no yog cov txheej txheem hloov kho uas muaj qhov cuam tshuam tsawg tshaj plaws rau cov khoom siv kho tshuab ntawm basalt fibers, thaum tib lub sijhawm txhim kho cov khoom siv kho tshuab tag nrho ntawm cov khoom sib xyaws.
2. Kev hloov kho surfactant yuav luag tsis muaj kev cuam tshuam ncaj qha rau cov khoom siv kho tshuab ntawm cov fibers, thiab nws yog qhov tsim nyog rau cov xwm txheej uas xav tau kev txhim kho qhov kev tawg lossis hydrophilicity ntawm cov fibers.
3. Kev siv tshuaj etching thiab kev kho cua sov yuav tsum tau siv nrog kev ceev faj, vim tias txawm hais tias lawv tuaj yeem txhim kho cov khoom sib txuas interfacial, lawv tuaj yeem ua rau txo qis cov khoom siv kho tshuab ntawm cov fibers.
4. Qhov kev xaiv ntawm txoj kev hloov kho yuav tsum yog raws li qhov yuav tsum tau ua ntawm daim ntawv thov kom ntsuas qhov kev ua tau zoo ntawm cov fiber nws tus kheej thiab qhov kev ua tau zoo ntawm cov khoom sib xyaw kom txhim kho cov nyhuv.